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Streamline 322MCS07V

Submitted by maria@blissmed… on
Solahart 320L Solar Water Heater | LCS Collector

With a 320-Litre tank and LCS collectors, the Solahart 322MCS07V offers efficient solar water heating for larger families in cool zones.

4
Title
Family size
Measurement unit
People
320
Title
Capacity
Measurement unit
Litre
Short measurement unit
L
2
Title
Collectors
5/3/2
Title
Warranty
Measurement unit
yr
Short measurement unit
Years

Streamline 322MCS07V: Key Attributes

Why Streamline 322MCS07V is a smart choice

The 322MCS07V from Solahart offers large-scale hot water capacity and efficient solar performance for homes with up to six people. With a 320-Litre ground-mounted tank and an LCS collector, this system provides reliable hot water while keeping energy bills low.

It’s built to handle colder weather thanks to its built-in frost protection and can be installed in areas up to 600m above sea level. Like other MDV systems, it’s not recommended for use in areas with poor water quality. Backed by Solahart’s 5-year tank warranty, it’s a robust and energy-efficient choice.

Key Features / USPs:

  • 320L storage – ideal for families of up to 6
  • Cold climate ready with frost protection
  • High-performance LCS collector
  • Installation approved to 600m elevation
  • Energy savings of up to 70%*
  • Covered by a 5-year tank warranty
  • Not for homes with harsh water^
320
Title
Storage Capacity
Specification group
Measurement unit
litres
Short measurement unit
l
170
Title
Boost Capacity (Electric)
Specification group
Measurement unit
litres
Short measurement unit
l
Indoor/Outdoor
Title
Installation
Specification group
Short measurement unit
l
PN 299293
Title
Solar Controller Kit
Specification group
Short measurement unit
l
92
Title
Weight Empty
Specification group
Measurement unit
kg
Short measurement unit
kg
418
Title
Weight Full
Specification group
Measurement unit
kg
Short measurement unit
kg
1.640
Title
Height
Specification group
Measurement unit
m
0.640
Title
Width
Specification group
Measurement unit
m
Short measurement unit
m
0.680
Title
Depth
Specification group
Measurement unit
m
Cooper sheath immersion element
Title
Heating Unit Type
Specification group
240V 50hz
Title
Supply Voltage
Specification group
1.87
Title
Aperture (heating) Area
Specification group
Measurement unit
m2
1996
Title
Length
Specification group
Measurement unit
mm
1043
Title
Width
Specification group
Measurement unit
mm
82
Title
Height
Specification group
Measurement unit
mm
1.2
Title
Capacity
Specification group
Measurement unit
litres
1000 kPa
Title
Working Pressure
Specification group
36
Title
Weight Emtpy
Specification group
Measurement unit
kg
41
Title
Weight Full
Specification group
Measurement unit
kg
Blue Tinox sputtered selective
Title
Absorber Surface
Specification group
copper
Title
Absorber Material
Specification group
copper tube
Title
Riser Material
Specification group
extruded aluminium frame with 0.40mm Zincalume backing sheet
Title
Tray Material
Specification group
38mm glass wool blanket
Title
Insulation Material - Base
Specification group
3.2mm tempered low iron glass
Title
Glass
Specification group
1000 kPa
145 psi
Title
TPR Valve Setting
Specification group
850 kPa
125 psi
Title
ECV* Setting
Specification group
680 kPa
Title
Max. Supply Pressure With ECV
Specification group
800 kPa
Title
Max. Supply Pressure Without ECV
Specification group
200 kPa / 29 psi
Title
Minimum Supply Pressure
Specification group
Rp 3/4
Title
Water Connections Cold
Specification group
Rp 3/4
Title
Water Connections Hot
Specification group
DN15 compression fittings (solar hot and solar cold inlets to tank Rp 3/4)
Title
Water Connections Solar
Specification group

How Split System Solar Water Heaters Work

With open circuit split systems the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy. This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

The Solahart 322MCS07V split solar water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply, however it may be installed with an in-series continuous flow or storage booster. If installed with an in-series booster, then the electric booster heating unit will not be connected to a power supply.

Solar Operation

The operation of the circulator is controlled by the combination of:

  • the hot sensor located at the outlet of the solar collectors. The hot sensor measures the water temperature at the outlet of the solar collectors.
  • the cold sensor located at the solar cold outlet at the base of the solar storage tank. The cold sensor measures the water temperature at the bottom of the solar storage tank.
  • the differential controller located in the solar control unit.

With open circuit split systems, the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains usable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.

Over-Temperature Operation

The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 70°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.

If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of eight cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.

Night Time Cooling Operation

The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.

If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.

Freeze Protection Operation

The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.

If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.

Standby Mode

The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.

Image
270 mdv with collectors low res reduced

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 322MCS07V system in Zone 3.
^ Energy savings of up to 75% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 322MCS07V and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 322MCS07V system in Zone 3.
^ Energy savings of up to 75% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 322MCS07V and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.

Streamline 272MCS07V

Submitted by maria@blissmed… on
270L Split System Solar Water Heater with LCS Collectors

The 272MCS07V combines a 270-Litre tank with two LCS solar collectors for efficient water heating in cooler regions. Built for 5-person households.

3-5
Title
Family size
Measurement unit
People
270
Title
Capacity
Measurement unit
Litre
Short measurement unit
L
2
Title
Collectors
5/3/2*
Title
Warranty
Measurement unit
yr
Short measurement unit
Years

Streamline 272MCS07V: Key Attributes

Why Streamline 272MCS07V is a smart choice

The Solahart 272MCS07V delivers dependable solar hot water using a ground-mounted 270L tank and a durable LCS solar collector. This split system is a great option for households of up to five looking to reduce reliance on grid electricity.

Designed with frost protection and rated for installations up to 600m, the 272MCS07V performs well in cooler climates. It’s not recommended for harsh water areas, but it offers energy savings of up to 70% and is backed by a 5-year tank warranty for added peace of mind.

Key Features / USPs:

  • 270L capacity – suits families of up to 5
  • LCS collector for high solar absorption
  • Inbuilt frost protection for year-round use
  • Installed safely at altitudes up to 600m
  • Up to 70% energy savings possible*
  • Covered by Solahart's 5-year tank warranty
  • Not suitable for harsh water conditions^
270
Title
Storage Capacity
Specification group
Measurement unit
litres
Short measurement unit
l
140
Title
Boost Capacity (Electric)
Specification group
Measurement unit
litres
Short measurement unit
l
Indoor/Outdoor
Title
Installation
Specification group
Short measurement unit
l
PN 299293
Title
Solar Controller Kit
Specification group
Short measurement unit
l
82
Title
Weight Empty
Specification group
Measurement unit
kg
Short measurement unit
kg
352
Title
Weight Full
Specification group
Measurement unit
kg
Short measurement unit
kg
1.395
Title
Height
Specification group
Measurement unit
m
0.640
Title
Width
Specification group
Measurement unit
m
Short measurement unit
m
0.680
Title
Depth
Specification group
Measurement unit
m
Cooper sheath immersion element
Title
Heating Unit Type
Specification group
240V 50hz
Title
Supply Voltage
Specification group
1.87
Title
Aperture (heating) Area
Specification group
Measurement unit
m2
1996
Title
Length
Specification group
Measurement unit
mm
1043
Title
Width
Specification group
Measurement unit
mm
82
Title
Height
Specification group
Measurement unit
mm
1.2
Title
Capacity
Specification group
Measurement unit
litres
1000 kPa
Title
Working Pressure
Specification group
36
Title
Weight Emtpy
Specification group
Measurement unit
kg
41
Title
Weight Full
Specification group
Measurement unit
kg
Blue Tinox sputtered selective
Title
Absorber Surface
Specification group
aluminium
Title
Absorber Material
Specification group
copper tube
Title
Riser Material
Specification group
extruded aluminium frame with 0.40mm Zincalume backing sheet
Title
Tray Material
Specification group
38mm glass wool blanket
Title
Insulation Material - Base
Specification group
3.2mm tempered low iron glass
Title
Glass
Specification group
1000 kPa
145 psi
Title
TPR Valve Setting
Specification group
850 kPa
125 psi
Title
ECV* Setting
Specification group
680 kPa
Title
Max. Supply Pressure With ECV
Specification group
800 kPa
Title
Max. Supply Pressure Without ECV
Specification group
200 kPa / 29 psi
Title
Minimum Supply Pressure
Specification group
Rp 3/4
Title
Water Connections Cold
Specification group
Rp 3/4
Title
Water Connections Hot
Specification group
DN15 compression fittings (solar hot and solar cold inlets to tank Rp 3/4)
Title
Water Connections Solar
Specification group

How Split System Solar Water Heaters Work

With open circuit split systems the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy. This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

The Solahart 272MCS07V split solar water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply, however it may be installed with an in-series continuous flow or storage booster. If installed with an in-series booster, then the electric booster heating unit will not be connected to a power supply.

Solar Operation

The operation of the circulator is controlled by the combination of:

  • the hot sensor located at the outlet of the solar collectors. The hot sensor measures the water temperature at the outlet of the solar collectors.
  • the cold sensor located at the solar cold outlet at the base of the solar storage tank. The cold sensor measures the water temperature at the bottom of the solar storage tank.
  • the differential controller located in the solar control unit.

With open circuit split systems, the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains usable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.

Over-Temperature Operation

The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 70°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.

If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of eight cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.

Night Time Cooling Operation

The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.

If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.

Freeze Protection Operation

The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.

If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.

Standby Mode

The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.

Image
270 mdv with collectors low res reduced

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 272MCS07V system in Zone 3.
^ Energy savings of up to 75% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 272MCS07V and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 272MCS07V system in Zone 3.
^ Energy savings of up to 75% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 272MCS07V and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.

Streamline 413MLV

Submitted by maria@blissmed… on
Solahart 410-Litre Split System | Efficient Solar Hot Water for 7 People

The Solahart 413MLV provides 410 litres of solar-heated water, ideal for large households. Built for efficiency and frost protection.

6-7
Title
Family size
Measurement unit
People
410
Title
Capacity
Measurement unit
Litre
Short measurement unit
L
3
Title
Collectors
5/3/2
Title
Warranty
Measurement unit
yr
Short measurement unit
Years

Streamline 413MLV: Key Attributes

Why Streamline 413MLV is a smart choice

The Solahart 413MLV is a powerful 410-Litre solar water heater designed to meet the hot water needs of larger families. With a tank located on the ground and three solar collectors on the roof, it’s the ideal choice for homeowners seeking energy savings without compromising performance or aesthetics.

Built with freeze protection and approved for altitudes up to 600m, this system performs reliably in a range of climates. It uses a trusted L collector and can cut your home’s water heating energy use by up to 70%. Like other MDV models, it is not suitable for harsh water areas and comes with a 5-year warranty.

Key Features / USPs:

  • 410L tank – supports large households (up to 7 people)
  • High-efficiency L collector
  • Frost protected for colder regions
  • Suitable for installation up to 600m elevation
  • Reduce energy usage by up to 70%*
  • Covered by Solahart's 5-year warranty
  • Not for homes with poor water quality^
410
Title
Storage Capacity
Specification group
Measurement unit
litres
Short measurement unit
l
220
Title
Boost Capacity (Electric)
Specification group
Measurement unit
litres
Short measurement unit
l
Indoor/Outdoor
Title
Installation
Specification group
Short measurement unit
l
PN 299293
Title
Solar Controller Kit
Specification group
Short measurement unit
l
115
Title
Weight Empty
Specification group
Measurement unit
kg
Short measurement unit
kg
531
Title
Weight Full
Specification group
Measurement unit
kg
Short measurement unit
kg
1.840
Title
Height
Specification group
Measurement unit
m
0.690
Title
Width
Specification group
Measurement unit
m
Short measurement unit
m
0.730
Title
Depth
Specification group
Measurement unit
m
Cooper sheath immersion element
Title
Heating Unit Type
Specification group
240V 50hz
Title
Supply Voltage
Specification group
1.87
Title
Aperture (heating) Area
Specification group
Measurement unit
m2
1943
Title
Length
Specification group
Measurement unit
mm
1027
Title
Width
Specification group
Measurement unit
mm
83
Title
Height
Specification group
Measurement unit
mm
1.2
Title
Capacity
Specification group
Measurement unit
litres
1000 kPa
Title
Working Pressure
Specification group
33
Title
Weight Emtpy
Specification group
Measurement unit
kg
34
Title
Weight Full
Specification group
Measurement unit
kg
Black polyester powder coat
Title
Absorber Surface
Specification group
aluminium
Title
Absorber Material
Specification group
copper tube
Title
Riser Material
Specification group
0.7mm aluminium
Title
Tray Material
Specification group
38mm polyester blanket
Title
Insulation Material - Base
Specification group
3.2mm tempered low iron glass
Title
Glass
Specification group
1000 kPa
145 psi
Title
TPR Valve Setting
Specification group
850 kPa
125 psi
Title
ECV* Setting
Specification group
680 kPa
Title
Max. Supply Pressure With ECV
Specification group
800 kPa
Title
Max. Supply Pressure Without ECV
Specification group
200 kPa / 29 psi
Title
Minimum Supply Pressure
Specification group
Rp 3/4
Title
Water Connections Cold
Specification group
Rp 3/4
Title
Water Connections Hot
Specification group
DN15 compression fittings (solar hot and solar cold inlets to tank RP¾/20
Title
Water Connections Solar
Specification group

How Split System Solar Water Heaters Work

With open circuit split systems the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy. This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

The Solahart 413MLV split solar water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply, however it may be installed with an in-series continuous flow or storage booster. If installed with an in-series booster, then the electric booster heating unit will not be connected to a power supply.

Solar Operation

The operation of the circulator is controlled by the combination of:

  • the hot sensor located at the outlet of the solar collectors. The hot sensor measures the water temperature at the outlet of the solar collectors.
  • the cold sensor located at the solar cold outlet at the base of the solar storage tank. The cold sensor measures the water temperature at the bottom of the solar storage tank.
  • the differential controller located in the solar control unit.

With open circuit split systems, the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains usable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.

Over-Temperature Operation

The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 70°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.

If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of eight cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.

Night Time Cooling Operation

The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.

If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.

Freeze Protection Operation

The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.

If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.

Standby Mode

The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.

Image
Streamline dimensions

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 413MLV system in Zone 3.
^ Energy savings of up to 65% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 413MLV and using a large load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 413MLV system in Zone 3.
^ Energy savings of up to 65% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 413MLV and using a large load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.

Streamline 322MLV

Submitted by maria@blissmed… on
Solar Water Heater | 320L Split System for Larger Families

The Solahart 322MLV is a 320-Litre split system with advanced freeze protection, designed for families of up to 6 in colder Australian climates.

4-6
Title
Family size
Measurement unit
People
320
Title
Capacity
Measurement unit
Litre
Short measurement unit
L
2
Title
Collectors
5/3/2
Title
Warranty
Measurement unit
yr
Short measurement unit
Years

Streamline 322MLV: Key Attributes

Why Streamline  322MLV is a smart choice

The 322MLV is one of Solahart’s largest MDV split systems, offering a 320L ground-mounted storage tank paired with a roof-mounted L collector. It’s tailored for larger households needing consistent hot water while minimising energy bills and environmental impact.

This model includes integrated freeze protection and is suitable for installations up to 600 metres above sea level, delivering dependable year-round performance. Not designed for use in harsh water regions, the 322MLV is backed by a 5-year tank warranty and capable of reducing hot water energy use by up to 70%.

Key Features / USPs:

  • 320L tank – great for homes of up to 6 people
  • L collector provides optimal solar gain
  • Freeze-protected system for winter resilience
  • Certified for high-altitude (up to 600m) installs
  • Save on energy costs with up to 70% efficiency*
  • 5-year Solahart warranty coverage
  • Not suitable for harsh water areas^
320
Title
Storage Capacity
Specification group
Measurement unit
litres
Short measurement unit
l
170
Title
Boost Capacity (Electric)
Specification group
Measurement unit
litres
Short measurement unit
l
Indoor/Outdoor
Title
Installation
Specification group
Short measurement unit
l
PN 299293
Title
Solar Controller Kit
Specification group
Short measurement unit
l
92
Title
Weight Empty
Specification group
Measurement unit
kg
Short measurement unit
kg
418
Title
Weight Full
Specification group
Measurement unit
kg
Short measurement unit
kg
1.640
Title
Height
Specification group
Measurement unit
m
0.640
Title
Width
Specification group
Measurement unit
m
Short measurement unit
m
0.680
Title
Depth
Specification group
Measurement unit
m
Cooper sheath immersion element
Title
Heating Unit Type
Specification group
240V 50hz
Title
Supply Voltage
Specification group
1.87
Title
Aperture (heating) Area
Specification group
Measurement unit
m2
1943
Title
Length
Specification group
Measurement unit
mm
1027
Title
Width
Specification group
Measurement unit
mm
83
Title
Height
Specification group
Measurement unit
mm
1.2
Title
Capacity
Specification group
Measurement unit
litres
1000 kPa
Title
Working Pressure
Specification group
33
Title
Weight Emtpy
Specification group
Measurement unit
kg
34
Title
Weight Full
Specification group
Measurement unit
kg
Black polyester powder coat
Title
Absorber Surface
Specification group
aluminium
Title
Absorber Material
Specification group
copper tube
Title
Riser Material
Specification group
0.7mm aluminium
Title
Tray Material
Specification group
38mm polyester blanket
Title
Insulation Material - Base
Specification group
3.2mm tempered low iron glass
Title
Glass
Specification group
1000 kPa
145 psi
Title
TPR Valve Setting
Specification group
850 kPa
125 psi
Title
ECV* Setting
Specification group
680 kPa
Title
Max. Supply Pressure With ECV
Specification group
800 kPa
Title
Max. Supply Pressure Without ECV
Specification group
200 kPa / 29 psi
Title
Minimum Supply Pressure
Specification group
Rp 3/4
Title
Water Connections Cold
Specification group
Rp 3/4
Title
Water Connections Hot
Specification group
DN15 compression fittings (solar hot and solar cold inlets to tank RP¾/20
Title
Water Connections Solar
Specification group

How Split System Solar Water Heaters Work

With open circuit split systems the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy. This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

The Solahart 322MLV split solar water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply, however it may be installed with an in-series continuous flow or storage booster. If installed with an in-series booster, then the electric booster heating unit will not be connected to a power supply.

Solar Operation

The operation of the circulator is controlled by the combination of:

  • the hot sensor located at the outlet of the solar collectors. The hot sensor measures the water temperature at the outlet of the solar collectors.
  • the cold sensor located at the solar cold outlet at the base of the solar storage tank. The cold sensor measures the water temperature at the bottom of the solar storage tank.
  • the differential controller located in the solar control unit.

With open circuit split systems, the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains usable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.

Over-Temperature Operation

The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 70°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.

If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of eight cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.

Night Time Cooling Operation

The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.

If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.

Freeze Protection Operation

The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.

If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.

Standby Mode

The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.

Image
Streamline dimensions

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 322MLV system in Zone 3.
^ Energy savings of up to 65% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 322MLV and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 322MLV system in Zone 3.
^ Energy savings of up to 65% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 322MLV and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.

Streamline 272MLV

Submitted by maria@blissmed… on
Solahart Split System Solar Water Heater | 270L

The Solahart 272MLV is a compact 270-Litre split system open-circuit solar water heater with frost protection, perfect for households of up to 5 people.

3-5
Title
Family size
Measurement unit
People
270
Title
Capacity
Measurement unit
Litre
Short measurement unit
L
2
Title
Collectors
5/3/2
Title
Warranty
Measurement unit
yr
Short measurement unit
Years

Streamline 272MLV: Key Attributes

Why Streamline  272MLV is a smart choice

Ideal for mid-sized families, the Solahart 272MLV is a 270L split system solar water heater combining a ground-level tank and a roof-mounted L collector. It offers a reliable and space-efficient alternative to roof-mounted tanks—perfect for homes with limited structural support or visual concerns.

The 272MLV features electronically controlled frost protection, making it suitable for cold weather installations, and is approved for use at altitudes up to 600 metres. It delivers energy savings of up to 70% and can cut carbon emissions by as much as 2.7 tonnes per year. Backed by a 5-year tank warranty, this system is a smart, sustainable choice for Australian households. Not suitable for harsh water areas.

Key Features / USPs:

  • 270L capacity – ideal for homes of up to 5
  • Trusted L solar collector for reliable performance
  • Built-in freeze protection for colder climates
  • 5-year tank warranty (MDV Series)
  • Up to 70% energy savings*
  • Reduces CO₂ by up to 2.7 tonnes annually
  • Not for use in areas with harsh water^
270
Title
Storage Capacity
Specification group
Measurement unit
litres
Short measurement unit
l
140
Title
Boost Capacity (Electric)
Specification group
Measurement unit
litres
Short measurement unit
l
Indoor/Outdoor
Title
Installation
Specification group
Short measurement unit
l
PN 299293
Title
Solar Controller Kit
Specification group
Short measurement unit
l
82
Title
Weight Empty
Specification group
Measurement unit
kg
Short measurement unit
kg
352
Title
Weight Full
Specification group
Measurement unit
kg
Short measurement unit
kg
1.395
Title
Height
Specification group
Measurement unit
m
0.640
Title
Width
Specification group
Measurement unit
m
Short measurement unit
m
0.680
Title
Depth
Specification group
Measurement unit
m
Cooper sheath immersion element
Title
Heating Unit Type
Specification group
240V 50hz
Title
Supply Voltage
Specification group
1.87
Title
Aperture (heating) Area
Specification group
Measurement unit
m2
1943
Title
Length
Specification group
Measurement unit
mm
1027
Title
Width
Specification group
Measurement unit
mm
83
Title
Height
Specification group
Measurement unit
mm
1.2
Title
Capacity
Specification group
Measurement unit
litres
1000 kPa
Title
Working Pressure
Specification group
33
Title
Weight Emtpy
Specification group
Measurement unit
kg
34
Title
Weight Full
Specification group
Measurement unit
kg
Black polyester powder coat
Title
Absorber Surface
Specification group
aluminium
Title
Absorber Material
Specification group
copper tube
Title
Riser Material
Specification group
0.7mm aluminium
Title
Tray Material
Specification group
38mm polyester blanket
Title
Insulation Material - Base
Specification group
3.2mm tempered low iron glass
Title
Glass
Specification group
1000 kPa
145 psi
Title
TPR Valve Setting
Specification group
850 kPa
125 psi
Title
ECV* Setting
Specification group
680 kPa
Title
Max. Supply Pressure With ECV
Specification group
800 kPa
Title
Max. Supply Pressure Without ECV
Specification group
200 kPa / 29 psi
Title
Minimum Supply Pressure
Specification group
Rp 3/4
Title
Water Connections Cold
Specification group
Rp 3/4
Title
Water Connections Hot
Specification group
DN15 compression fittings (solar hot and solar cold inlets to tank Rp 3/4)
Title
Water Connections Solar
Specification group

How Split System Solar Water Heaters Work

With open circuit split systems the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy. 

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

The Solahart 272MLV split solar water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply, however it may be installed with an in-series continuous flow or storage booster. If installed with an in-series booster, then the electric booster heating unit will not be connected to a power supply.

Solar Operation

The operation of the circulator is controlled by the combination of:

  • the hot sensor located at the outlet of the solar collectors. The hot sensor measures the water temperature at the outlet of the solar collectors.
  • the cold sensor located at the solar cold outlet at the base of the solar storage tank. The cold sensor measures the water temperature at the bottom of the solar storage tank.
  • the differential controller located in the solar control unit.

With open circuit split systems, the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains usable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.

Over-Temperature Operation

The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 70°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.

If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of eight cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.

Night Time Cooling Operation

The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.

If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.

Freeze Protection Operation

The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.

If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.

This process will repeat whenever the hot sensor measures that the water temperature in the solar collectors is approaching freezing.

Standby Mode

The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.

Image
270 mdv with collectors low res reduced

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 272MLV system in Zone 3.
^ Energy savings of up to 65% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 272MLV and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff..
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031. 
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 272MLV system in Zone 3.
^ Energy savings of up to 65% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 272MLV and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff..
† Solahart Warranty Details: 5/3/2 warranty; 5 year cylinder and collectors supply, 3 year parts, 2 year labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031. 
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.

Streamline 322RCS07X

Submitted by maria@blissmed… on
Solahart Solar Water Heater | 320L Split System

Designed for larger families, the Solahart 322RCS07X features a 320-Litre tank and CSA2007 collector. Efficient solar performance with frost protection built in.

4
Title
Family size
Measurement unit
People
320
Title
Capacity
Measurement unit
Litre
Short measurement unit
L
2
Title
Collectors
10/3/2
Title
Warranty
Measurement unit
yr
Short measurement unit
Years

Streamline 322RCS07X: Key Attributes

Why Streamline 322RCS07X is a smart choice

The Solahart 322RCS07X offers powerful solar water heating performance for larger households. With a generous 320-Litre ground-mounted storage tank and a rugged CSA2007 solar collector, it’s engineered to deliver consistent hot water while helping reduce energy costs and emissions.

Ideal for properties where a roof-mounted tank is not preferred, this split system includes freeze protection and is approved for installations up to 600m elevation. It can also be installed as a solar preheater with a Solahart inline gas booster†, adding flexibility for different home setups. Not recommended for use in areas with harsh water conditions.

Key Features / USPs:

  • 320L capacity – ideal for homes with up to 6 people
  • CSA2007 collector for proven solar performance
  • Advanced frost protection for year-round reliability
  • Compatible with Solahart gas booster systems†
  • Approved for installation up to 600m altitude
  • Significant savings on energy and carbon emissions*
  • Covered by Solahart’s 10-year tank warranty
  • Not suitable for hard water conditions^
320
Title
Storage Capacity
Specification group
Measurement unit
litres
Short measurement unit
l
170
Title
Boost Capacity (Electric)
Specification group
Measurement unit
litres
Short measurement unit
l
Indoor/Outdoor
Title
Installation
Specification group
Short measurement unit
l
Kit number 299316
Title
Solar Controller Kit
Specification group
Short measurement unit
l
92
Title
Weight Empty
Specification group
Measurement unit
kg
Short measurement unit
kg
417
Title
Weight Full
Specification group
Measurement unit
kg
Short measurement unit
kg
1.640
Title
Height
Specification group
Measurement unit
m
0.640
Title
Width
Specification group
Measurement unit
m
Short measurement unit
m
0.680
Title
Depth
Specification group
Measurement unit
m
Cooper sheath immersion element
Title
Heating Unit Type
Specification group
220 V - 240 V 50 Hz
Title
Supply Voltage
Specification group
1.87
Title
Aperture (heating) Area
Specification group
Measurement unit
m2
1996
Title
Length
Specification group
Measurement unit
mm
1043
Title
Width
Specification group
Measurement unit
mm
82
Title
Height
Specification group
Measurement unit
mm
1.5
Title
Capacity
Specification group
Measurement unit
litres
36
Title
Weight Emtpy
Specification group
Measurement unit
kg
38
Title
Weight Full
Specification group
Measurement unit
kg
1000 kPa
145 psi
Title
Working Pressure
Specification group
Tinox sputtered selective surface
Title
Absorber Surface
Specification group
copper
Title
Absorber Material
Specification group
copper tube
Title
Header and Riser Material
Specification group
extruded aluminium
Title
Tray Frame Material
Specification group
38mm glass wool blanket
Title
Insulation Material - Base
Specification group
3.2 mm tempered low iron glass
Title
Glass
Specification group
2 x CSA2007 Collectors
Title
Collector Installation (2)
Specification group
2.0
Title
Roof Area Dimensions (3) - Length
Specification group
Measurement unit
m
2.3
Title
Roof Area Dimensions (3) - Width
Specification group
Measurement unit
m
1
Title
Collector Kit (PN 12103016)
Specification group
1000 kPa
145 psi
Title
TPR Valve Setting
Specification group
850 kPa
125 psi
Title
ECV* Setting
Specification group
680 kPa / 100 psi
Title
Max. Supply Pressure With ECV
Specification group
800 kPa / 115 psi
Title
Max. Supply Pressure Without ECV
Specification group
200 kPa / 29 psi
Title
Minimum Supply Pressure
Specification group
Rp 3/4
Title
Water Connections Cold
Specification group
Rp 3/4
Title
Water Connections Hot
Specification group
DN15 compression fittings (solar hot and solar cold inlets to tank Rp 3/4)
Title
Water Connections Solar
Specification group

How Split System Solar Water Heaters Work

The Solahart 322RCS07X split solar water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply, however it may be installed with an in-series continuous flow or storage booster. If installed with an in-series booster, then the electric booster heating unit will not be connected to a power supply.

Solar Operation

The operation of the circulator is controlled by the combination of:

  • the hot sensor located at the outlet of the solar collectors. The hot sensor measures the water temperature at the outlet of the solar collectors.
  • the cold sensor located at the solar cold outlet at the base of the solar storage tank. The cold sensor measures the water temperature at the bottom of the solar storage tank.
  • the differential controller located in the solar control unit.

With open circuit split systems, the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains usable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.

Over-Temperature Operation

The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 70°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.

If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of eight cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.

Night Time Cooling Operation

The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.

If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.

Freeze Protection Operation

The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.

If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.

This process will repeat whenever the hot sensor measures that the water temperature in the solar collectors is approaching freezing.

This model also has enhanced frost protection. The frost element located at the bottom of the solar storage tank will turn on when the circulator activates and the cold sensor measures a very low water temperature at the bottom of the tank. The purpose of the anti-freeze heating unit is to provide additional energy to the water to assist in the prevention of freezing in the solar pipe work and solar collectors. The frost element will turn off when either the water temperature has risen by a few degrees or the circulator deactivates. The water heater will then enter standby mode.

Standby Mode

The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.

Image
Solahart solar ready 270l

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 322RCS07X system in Zone 3.
^ Energy savings of up to 75% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 322RCS07X and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 10/3/2 warranty; 10 year cylinder and collector supply, 3 year cylinder and collector labour, 2 year parts supply including labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.
‡ Enhanced Frost Protection – these systems have a level of enhanced recirculating freeze protection designed to guard against freeze conditions. These systems are suitable to be installed at an altitude not exceeding 600 m above sea level.
∠ Harsh water regions – the Solahart warranty may not apply if the water heater is connected to a water supply which: is scaling with a saturation index >+0.8, or; is corrosive with a saturation index <-1.0, or; has a Total Dissolved Solids content >2500 mg/L.

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 322RCS07X system in Zone 3.
^ Energy savings of up to 75% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 322RCS07X and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 10/3/2 warranty; 10 year cylinder and collector supply, 3 year cylinder and collector labour, 2 year parts supply including labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.
‡ Enhanced Frost Protection – these systems have a level of enhanced recirculating freeze protection designed to guard against freeze conditions. These systems are suitable to be installed at an altitude not exceeding 600 m above sea level.
∠ Harsh water regions – the Solahart warranty may not apply if the water heater is connected to a water supply which: is scaling with a saturation index >+0.8, or; is corrosive with a saturation index <-1.0, or; has a Total Dissolved Solids content >2500 mg/L.

Streamline 272RCS07XS

Submitted by maria@blissmed… on
Solar Hot Water System | 270L Split Series

The Solahart 272RCS07X features a 270-Litre tank and two CSA2007 collectors for reliable solar hot water. Built for Australian conditions with frost protection.

3
Title
Family size
Measurement unit
People
270
Title
Capacity
Measurement unit
Litre
Short measurement unit
L
2
Title
Collectors
10/3/2
Title
Warranty
Measurement unit
yr
Short measurement unit
Years

Streamline 272RCS07X: Key Attributes

Why Streamline 272RCS07X is a smart choice

The Solahart 272RCS07X is a high-efficiency split system solar water heater built to perform in Australia’s varied conditions. Featuring a 270-litre ground-mounted tank and durable CSA2007 solar collectors, this system is ideal for households of up to five people looking to cut energy costs and reduce emissions.

With built-in frost protection and approval for installation up to 600m altitude, the 272RCS07X provides consistent performance even in cooler climates. It also offers the flexibility to be installed as a solar preheater with a compatible Solahart inline gas booster†—though many homes will benefit from its solar capacity alone. Not suitable for harsh water areas.

Key Features / USPs:

  • 270L tank capacity – ideal for up to 5 people
  • CSA2007 collector designed for durability and efficiency
  • Reliable operation in cold weather with frost protection
  • Suitable for installation up to 600m elevation
  • Optional compatibility with Solahart gas booster†
  • Backed by Solahart’s 10-year tank warranty
  • Save up to 75% on water heating energy use#
  • Not recommended for poor water quality zones^
270
Title
Storage Capacity
Specification group
Measurement unit
litres
Short measurement unit
l
140
Title
Boost Capacity (Electric)
Specification group
Measurement unit
litres
Short measurement unit
l
Indoor/Outdoor
Title
Installation
Specification group
Short measurement unit
l
Kit number 299316
Title
Solar Controller Kit
Specification group
Short measurement unit
l
82
Title
Weight Empty
Specification group
Measurement unit
kg
Short measurement unit
kg
352
Title
Weight Full
Specification group
Measurement unit
kg
Short measurement unit
kg
1.395
Title
Height
Specification group
Measurement unit
m
0.640
Title
Width
Specification group
Measurement unit
m
Short measurement unit
m
0.680
Title
Depth
Specification group
Measurement unit
m
Cooper sheath immersion element
Title
Heating Unit Type
Specification group
220 V - 240 V 50 Hz
Title
Supply Voltage
Specification group
1.87
Title
Aperture (heating) Area
Specification group
Measurement unit
m2
1996
Title
Length
Specification group
Measurement unit
mm
1043
Title
Width
Specification group
Measurement unit
mm
82
Title
Height
Specification group
Measurement unit
mm
1.5
Title
Capacity
Specification group
Measurement unit
litres
36
Title
Weight Emtpy
Specification group
Measurement unit
kg
38
Title
Weight Full
Specification group
Measurement unit
kg
1000 kPa
145 psi
Title
Working Pressure
Specification group
Tinox sputtered selective surface
Title
Absorber Surface
Specification group
copper
Title
Absorber Material
Specification group
copper tube
Title
Header and Riser Material
Specification group
extruded aluminium
Title
Tray Frame Material
Specification group
38mm glass wool blanket
Title
Insulation Material - Base
Specification group
3.2 mm tempered low iron glass
Title
Glass
Specification group
2 x CSA2007 Collectors
Title
Collector Installation (2)
Specification group
2.0
Title
Roof Area Dimensions (3) - Length
Specification group
Measurement unit
m
2.3
Title
Roof Area Dimensions (3) - Width
Specification group
Measurement unit
m
1
Title
Collector Kit (PN 12103016)
Specification group
1000 kPa
145 psi
Title
TPR Valve Setting
Specification group
850 kPa
125 psi
Title
ECV* Setting
Specification group
680 kPa / 100 psi
Title
Max. Supply Pressure With ECV
Specification group
800 kPa / 115 psi
Title
Max. Supply Pressure Without ECV
Specification group
200 kPa / 29 psi
Title
Minimum Supply Pressure
Specification group
Rp 3/4
Title
Water Connections Cold
Specification group
Rp 3/4
Title
Water Connections Hot
Specification group
DN15 compression fittings (solar hot and solar cold inlets to tank Rp 3/4)
Title
Water Connections Solar
Specification group

How Split System Solar Water Heaters Work

The Solahart 272RCS07X split solar water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply, however it may be installed with an in-series continuous flow or storage booster. If installed with an in-series booster, then the electric booster heating unit will not be connected to a power supply.

Solar Operation

The operation of the circulator is controlled by the combination of:

  • the hot sensor located at the outlet of the solar collectors. The hot sensor measures the water temperature at the outlet of the solar collectors.
  • the cold sensor located at the solar cold outlet at the base of the solar storage tank. The cold sensor measures the water temperature at the bottom of the solar storage tank.
  • the differential controller located in the solar control unit.

With open circuit split systems, the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains usable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.

Over-Temperature Operation

The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 70°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.

If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of eight cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.

Night Time Cooling Operation

The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.

If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.

Freeze Protection Operation

The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.

If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.

This process will repeat whenever the hot sensor measures that the water temperature in the solar collectors is approaching freezing.

This model also has enhanced frost protection. The frost element located at the bottom of the solar storage tank will turn on when the circulator activates and the cold sensor measures a very low water temperature at the bottom of the tank. The purpose of the anti-freeze heating unit is to provide additional energy to the water to assist in the prevention of freezing in the solar pipe work and solar collectors. The frost element will turn off when either the water temperature has risen by a few degrees or the circulator deactivates. The water heater will then enter standby mode.

Standby Mode

The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.

Image
Solahart solar ready 270l

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 272RCS07X system in Zone 3.
^ Energy savings of up to 75% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 272RCS07X and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 10/3/2 warranty; 10 year cylinder and collector supply, 3 year cylinder and collector labour, 2 year parts supply including labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.
‡ Enhanced Frost Protection – these systems have a level of enhanced recirculating freeze protection designed to guard against freeze conditions. These systems are suitable to be installed at an altitude not exceeding 600 m above sea level.
∠ Harsh water regions – the Solahart warranty may not apply if the water heater is connected to a water supply which: is scaling with a saturation index >+0.8, or; is corrosive with a saturation index <-1.0, or; has a Total Dissolved Solids content >2500 mg/L.

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 272RCS07X system in Zone 3.
^ Energy savings of up to 75% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 272RCS07X and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 10/3/2 warranty; 10 year cylinder and collector supply, 3 year cylinder and collector labour, 2 year parts supply including labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.
‡ Enhanced Frost Protection – these systems have a level of enhanced recirculating freeze protection designed to guard against freeze conditions. These systems are suitable to be installed at an altitude not exceeding 600 m above sea level.
∠ Harsh water regions – the Solahart warranty may not apply if the water heater is connected to a water supply which: is scaling with a saturation index >+0.8, or; is corrosive with a saturation index <-1.0, or; has a Total Dissolved Solids content >2500 mg/L.

Streamline 322RLX

Submitted by maria@blissmed… on
Solar Hot Water System | 320L Split Series

Solahart 322RLX split system delivers efficient solar water heating with a large 320L tank. Suited for larger families and backed by a 10-year warranty.

4
Title
Family size
Measurement unit
People
320
Title
Capacity
Measurement unit
Litre
Short measurement unit
L
2
Title
Collectors
10/3/2
Title
Warranty
Measurement unit
yr
Short measurement unit
Years

Streamline 322RLX: Key Attributes

Why Streamline 322RLX is a smart choice

The Solahart 322RLX is designed for homes with higher hot water demand, combining a 320-Litre ground-mounted storage tank with the proven L series solar collector. This split system configuration is ideal for installations with limited roof strength or where a rooftop tank is not preferred.

With built-in freeze protection, this system handles Australian winters with ease and is rated for altitudes up to 600m. As with all RMX models, it is not recommended for harsh water conditions. Save up to 75%# on water heating energy use when replacing an electric water heater and enjoy reliable performance for years to come, backed by a 10-year tank warranty.

Key Features / USPs:

  • 320L capacity – perfect for families of up to 6
  • High-output L series solar collector
  • Frost-tolerant with built-in protection
  • Ground-mounted tank for installation flexibility
  • Long-life 10-year tank warranty
  • Significant energy and emissions savings*
  • Unsuitable for hard water condition zones^

#Energy savings of up to 65% to 75% per annum shown are based on Australian Government-approved TRNSYS simulation modelling of a Solahart 322RLX and 322RCS07X and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.                        
* Solahart Warranty Details: 10/3/2 warranty; 10 year cylinder and collector supply, 3 year cylinder and collector labour, 2 year parts supply including labour; applies to a single family domestic dwelling only. All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.                        

Enhanced Frost Protection – these systems have a level of enhanced recirculating freeze protection designed to guard against freeze conditions. These systems are suitable to be installed at an altitude not exceeding 600 m above sea level.
Harsh water regions – the Solahart warranty may not apply if the water heater is connected to a water supply which: is scaling with a saturation index >+0.8, or; is corrosive with a saturation index <-1.0, or; has a Total Dissolved Solids content >2500 mg/L.

320
Title
Storage Capacity
Specification group
Measurement unit
litres
Short measurement unit
l
170
Title
Boost Capacity (Electric)
Specification group
Measurement unit
litres
Short measurement unit
l
Indoor/Outdoor
Title
Installation
Specification group
Short measurement unit
l
Kit number 299316
Title
Solar Controller Kit
Specification group
Short measurement unit
l
92
Title
Weight Empty
Specification group
Measurement unit
kg
Short measurement unit
kg
417
Title
Weight Full
Specification group
Measurement unit
kg
Short measurement unit
kg
1.640
Title
Height
Specification group
Measurement unit
m
0.640
Title
Width
Specification group
Measurement unit
m
Short measurement unit
m
0.680
Title
Depth
Specification group
Measurement unit
m
Cooper sheath immersion element
Title
Heating Unit Type
Specification group
220 V - 240 V 50 Hz
Title
Supply Voltage
Specification group
1.87
Title
Aperture (heating) Area
Specification group
Measurement unit
m2
1943
Title
Length
Specification group
Measurement unit
mm
1027
Title
Width
Specification group
Measurement unit
mm
83
Title
Height
Specification group
Measurement unit
mm
1.5
Title
Capacity
Specification group
Measurement unit
litres
32
Title
Weight Emtpy
Specification group
Measurement unit
kg
34
Title
Weight Full
Specification group
Measurement unit
kg
1000 kPa
145 psi
Title
Working Pressure
Specification group
Black polyester powder coat
Title
Absorber Surface
Specification group
aluminium
Title
Absorber Material
Specification group
copper tube
Title
Riser Material
Specification group
0.7 mm aluminium
Title
Tray Material
Specification group
38 mm polyester blanket
Title
Insulation Material - Base
Specification group
3.2 mm tempered low iron glass
Title
Glass
Specification group
1000 kPa
145 psi
Title
TPR Valve Setting
Specification group
850 kPa
125 psi
Title
ECV* Setting
Specification group
680 kPa / 100 psi
Title
Max. Supply Pressure With ECV
Specification group
800 kPa / 115 psi
Title
Max. Supply Pressure Without ECV
Specification group
200 kPa / 29 psi
Title
Minimum Supply Pressure
Specification group
Rp 3/4
Title
Water Connections Cold
Specification group
Rp 3/4
Title
Water Connections Hot
Specification group
DN15 compression fittings (solar hot and solar cold inlets to tank Rp 3/4)
Title
Water Connections Solar
Specification group

How Split System Solar Water Heaters Work

The Solahart 322RLX split solar water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply, however it may be installed with an in-series continuous flow or storage booster. If installed with an in-series booster, then the electric booster heating unit will not be connected to a power supply.

Solar Operation

The operation of the circulator is controlled by the combination of:

  • the hot sensor located at the outlet of the solar collectors. The hot sensor measures the water temperature at the outlet of the solar collectors.
  • the cold sensor located at the solar cold outlet at the base of the solar storage tank. The cold sensor measures the water temperature at the bottom of the solar storage tank.
  • the differential controller located in the solar control unit.

With open circuit split systems, the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains usable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.

Over-Temperature Operation

The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 70°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.

If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of eight cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.

Night Time Cooling Operation

The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.

If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.

Freeze Protection Operation

The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.

If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.

This process will repeat whenever the hot sensor measures that the water temperature in the solar collectors is approaching freezing.

This model also has enhanced frost protection. The frost element located at the bottom of the solar storage tank will turn on when the circulator activates and the cold sensor measures a very low water temperature at the bottom of the tank. The purpose of the anti-freeze heating unit is to provide additional energy to the water to assist in the prevention of freezing in the solar pipe work and solar collectors. The frost element will turn off when either the water temperature has risen by a few degrees or the circulator deactivates. The water heater will then enter standby mode.

Standby Mode

The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.

Image
Solahart solar ready 270l

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to a 322RLX system in Zone 3.
^ Energy savings of up to 65% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 322RLX and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 10/3/2 warranty; 10 year cylinder and collector supply, 3 year cylinder and collector labour, 2 year parts supply including labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.
‡ Enhanced Frost Protection – these systems have a level of enhanced recirculating freeze protection designed to guard against freeze conditions. These systems are suitable to be installed at an altitude not exceeding 600 m above sea level.
∠ Harsh water regions – the Solahart warranty may not apply if the water heater is connected to a water supply which: is scaling with a saturation index >+0.8, or; is corrosive with a saturation index <-1.0, or; has a Total Dissolved Solids content >2500 mg/L.

Solahart Atmos Frost 270HAV

Submitted by olga@blissmedi… on
Heat Pump Water Heater

Efficient, frost-tolerant, and family-sized, the Solahart Atmos Frost 270HAV is built to handle everything in Australia’s varied climates, from frosty mornings to coastal conditions. Atmos Frost 270HAV is made right here to meet the demands of Australian households.

 

6
Title
Family size
270
Title
Capacity
Short measurement unit
L
7
Title
Warranty
Short measurement unit
*yr
73%
Title
Water Heating Energy Savings
Short measurement unit
#

Solahart Atmos Frost Heat Pump: Key Features

WHY ATMOS FROST IS A SMART CHOICE

Solahart Atmos® Frost 270HAV Heat Pump offers the perfect balance of energy efficiency and all-climate reliability. With a 270-litre tank and a high Coefficient of Performance (COP) of 4.5, it’s designed to reduce reliance on traditional electric heating while providing consistent hot water, even in colder regions.

This system uses ambient air to heat water, making it a sustainable alternative to solar or electric systems. Its tough exterior, smart LED controls, and wrap-around microchannel heating make it an ideal solution for medium to large households.

Micro-channel Technology

Provides a larger contact area to maximise heat transfer efficiency. The wrap-around design of the micro-channels enables installation in harsh water areas.

Side Fan Design

A design that provides maximum airflow and protects from the rain.

Smart LED Controller Display

A bright interactive LED touchscreen display putting control at your fingertips

Enamel-Lined Water Tank

The high-quality durable enamel coating reduces the risk of corrosion and water leakage.
  •  COP OF 4.5: Coefficient of Performance (COP) of 4.5** making it a highly efficient water heater to help reduce energy consumption
  • Heavy Duty Top Cover: The ASA^ top cover withstands harsh weather conditions.

* Solahart Warranty Details: 7/3/2 warranty; 7-year cylinder supply, 3-year labour on cylinder, 2-year parts including labour. Applies to a single-family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. See the Solahart warranty set out in the Owner’s Guide and Installation Instructions. For more details call Solahart Australia 1300 769 475.


All other applications have a 3/1/1 warranty; 3-year cylinder supply, 1-year cylinder labour, 1-year parts, including labour. 

** Testing condition: 19°C/15°C (Dry bulb/Wet bulb), relative humidity of 66% and heating water from 15°C to 60°C.

^ Acrylonitrile Styrene Acrylate (ASA) is an amorphous thermoplastic with improved weather resistance.

# Energy savings of up to 73% are based on Australian Government approved TRNSYS simulation modelling using a medium load in Zone 3 and apply when replacing an electric water heater of similar size with a Solahart 270HAV24 Heat Pump water heater. Any savings will vary depending upon your location, type of water heater being replaced, hot water consumption and fuel tariff. Before installation - seek advice as to suitability to household usage and tariffs. The impact on an electricity account will depend on the tariff arrangement of the water heater being replaced and where you live. The water heater is recommended for connection to an uninterrupted 24 hour continuous tariff power supply. Depending upon the size of the household and its hot water requirements and if the Electricity Retailer permits, an extended off-peak (overnight and day) or Extended time controlled power supply connection of a minimum 16 hours per day may also be suitable. Before purchase consult your energy provider for more information on cost comparisons.

The Smart Way To Create Hot Water Out Of Thin Air

270
Title
Storage Capacity
Specification group
Measurement unit
L
195
Title
Boost Capacity
Specification group
Measurement unit
L
1825 x 725 x 690
Title
Dimensions H x W x D
Specification group
Measurement unit
mm
145
Title
Weight - Empty (cartoned)
Specification group
Measurement unit
kg
405
Title
Weight - Full
Specification group
Measurement unit
kg
60
Title
Temperature Setting
Specification group
Measurement unit
°C
3600
Title
Maximum Rated Power Input @ 240 V
Specification group
Measurement unit
Watts
985
Title
Rated Heat Pump Power Input
Specification group
Measurement unit
Watts
R134a
Title
Refrigerant
Specification group
2.4
Title
Element Size
Specification group
Measurement unit
kW
47
Title
Noise Rating @ 1 m
Specification group
Measurement unit
dB(A)
IP24
Title
IP Rating
Specification group
4.5*
Title
Coefficient of Performance
Specification group
Rp 3/4
Title
Water Inlet/Outlet Connections
1000
Title
Temperature Pressure Relief Valve Setting
Measurement unit
kPa
850
Title
ECV Setting (not supplied)
Measurement unit
kPa
680
Title
With ECV
Specification group
Measurement unit
kPa
800
Title
Without ECV
Specification group
Measurement unit
kPa
6
Title
Family Size
Specification group
7
Title
Sollahart Warranty
Specification group
Measurement unit
*years
73%
Title
Water Heating Energy Savings
Specification group
Measurement unit
#

How Heat Pump Water Heaters Work

The efficient heat pump technology extracts energy from the surrounding air. Ambient warmth is used to convert the refrigerant within the sealed system into a gas. The gas is then compressed to generate even more heat which then heats the water in the tank. What’s more this process can work day or night, in sunshine and rain, all year round.

When hot water is drawn off and cold water enters the tank, the thermostat activates the fan and the compressor. The operation of the compressor causes a pressure difference within the sealed refrigeration system. This pressure difference causes the refrigerant to move around the sealed system. The refrigerant enters the evaporator as a liquid. As the refrigerant absorbs heat from the atmosphere it changes state, at low pressure, from a sub cooled liquid to a super-heated vapour or gas (evaporates). The vapour then enters the compressor and obtains more heat, known as heat of compression, and passes into the heat exchanger as a super-heated vapour at high pressure.

As the refrigerant passes through the micro-channel heat exchanger wrapped around the storage cylinder, it gives off heat which is absorbed by the water inside the cylinder. As the refrigerant gives off heat it cools and changes state back into a liquid (condenses). The refrigerant then enters the evaporator again and the cycle is repeated. The resulting cold air is then discharged through the air outlet louvers back to atmosphere. This process continues while ever heating is required until the water in the storage tank reaches a temperature of 60°C.  

 

User-Friendly Smart Control

The Solahart Atmos-Air Heat Pump comes with an inbuilt touch LCD display. It is user-friendly and boasts a range of features, operation modes and settings:

  • Clock
  • Usable hot water quantity display
  • Water temperature display
  • Dual timer function
  • Vacation Mode - conserve energy when you are on holidays
  • Manual electric heating mode - For emergency hot water requirements in the event of the heat pump developing a fault
  • Automatic de-icing Function - automatic de-icing in frost conditions
Image
Atmos Frost 270 Technical Specifications

* Testing condition: 19°C/15°C (Dry bulb/Wet bulb), 66% relative humidity and heating water from 15°C to 60°C.

* Testing condition: 19°C/15°C (Dry bulb/Wet bulb), 66% relative humidity and heating water from 15°C to 60°C.

Streamline 272RLX

Submitted by maria@blissmed… on
Split System Solar Water Heater | 270L Tank

A high-performance open-circuit solar water heater with a 270-litre tank and roof-mounted L collectors, perfect for medium-sized households.

5
Title
Family size
Measurement unit
People
270
Title
Capacity
Measurement unit
Litre
Short measurement unit
L
2
Title
Collectors
10/3/2
Title
Warranty
Measurement unit
yr
Short measurement unit
Years

Streamline 272RLX: Key Attributes

Why Streamline 272RLX is a smart choice

The Solahart 272RLX is a reliable and efficient open-circuit split system, combining a 270L ground-mounted tank with a roof-mounted L series collector. With its intelligent design and premium solar performance, it’s ideal for homes where a traditional roof-mounted tank isn't feasible. The 272RLX includes enhanced frost protection and is suitable for installations up to 600m altitude. Not suitable for harsh water areas.

With energy savings of up to 75% and carbon emission reductions of up to 2.6 tonnes annually, this system is an eco-conscious investment backed by a 10-year tank warranty.

Key Features / USPs:

  • 270L capacity – suits up to 5 people
  • High-performance L collector
  • Advanced freeze protection
  • 10-year tank warranty
  • Can be paired with Solahart gas booster†
  • Up to 75% energy savings*
  • Not recommended for harsh water areas^

#Energy savings of up to 65% to 75% per annum shown are based on Australian Government-approved TRNSYS simulation modelling of a Solahart 322RLX and 322RCS07X and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.                        
* Solahart Warranty Details: 10/3/2 warranty; 10 year cylinder and collector supply, 3 year cylinder and collector labour, 2 year parts supply including labour; applies to a single family domestic dwelling only. All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.                        

‡ Enhanced Frost Protection – these systems have a level of enhanced recirculating freeze protection designed to guard against freeze conditions. These systems are suitable to be installed at an altitude not exceeding 600 m above sea level.
∠ Harsh water regions – the Solahart warranty may not apply if the water heater is connected to a water supply which: is scaling with a saturation index >+0.8, or; is corrosive with a saturation index <-1.0, or; has a Total Dissolved Solids content >2500 mg/L.

270
Title
Storage Capacity
Specification group
Measurement unit
litres
Short measurement unit
l
140
Title
Boost Capacity (Electric)
Specification group
Measurement unit
litres
Short measurement unit
l
Indoor/Outdoor
Title
Installation
Specification group
Short measurement unit
l
Kit number 299316
Title
Solar Controller Kit
Specification group
Short measurement unit
l
82
Title
Weight Empty
Specification group
Measurement unit
kg
Short measurement unit
kg
352
Title
Weight Full
Specification group
Measurement unit
kg
Short measurement unit
kg
1.395
Title
Height
Specification group
Measurement unit
m
0.640
Title
Width
Specification group
Measurement unit
m
Short measurement unit
m
0.680
Title
Depth
Specification group
Measurement unit
m
Cooper sheath immersion element
Title
Heating Unit Type
Specification group
220 V - 240 V 50 Hz
Title
Supply Voltage
Specification group
1.87
Title
Aperture (heating) Area
Specification group
Measurement unit
m2
1943
Title
Length
Specification group
Measurement unit
mm
1027
Title
Width
Specification group
Measurement unit
mm
83
Title
Height
Specification group
Measurement unit
mm
1.5
Title
Capacity
Specification group
Measurement unit
litres
32
Title
Weight Emtpy
Specification group
Measurement unit
kg
34
Title
Weight Full
Specification group
Measurement unit
kg
1000 kPa
145 psi
Title
Working Pressure
Specification group
Black polyester powder coat
Title
Absorber Surface
Specification group
aluminium
Title
Absorber Material
Specification group
copper tube
Title
Riser Material
Specification group
0.7 mm aluminium
Title
Tray Material
Specification group
38 mm polyester blanket
Title
Insulation Material - Base
Specification group
3.2 mm tempered low iron glass
Title
Glass
Specification group
1000 kPa
145 psi
Title
TPR Valve Setting
Specification group
850 kPa
125 psi
Title
ECV* Setting
Specification group
680 kPa / 100 psi
Title
Max. Supply Pressure With ECV
Specification group
800 kPa / 115 psi
Title
Max. Supply Pressure Without ECV
Specification group
200 kPa / 29 psi
Title
Minimum Supply Pressure
Specification group
Rp 3/4
Title
Water Connections Cold
Specification group
Rp 3/4
Title
Water Connections Hot
Specification group
DN15 compression fittings (solar hot and solar cold inlets to tank Rp 3/4)
Title
Water Connections Solar
Specification group

How Split System Solar Water Heaters Work

The Solahart 272RLX split solar water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply, however it may be installed with an in-series continuous flow or storage booster. If installed with an in-series booster, then the electric booster heating unit will not be connected to a power supply.

Solar Operation

The operation of the circulator is controlled by the combination of:

  • the hot sensor located at the outlet of the solar collectors. The hot sensor measures the water temperature at the outlet of the solar collectors.
  • the cold sensor located at the solar cold outlet at the base of the solar storage tank. The cold sensor measures the water temperature at the bottom of the solar storage tank.
  • the differential controller located in the solar control unit.

With open circuit split systems, the water is circulated from the tank at ground level through the solar collectors by an electric pump called a 'circulator'. As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 70°C to 75°C.

During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains usable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.

Over-Temperature Operation

The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 70°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.

If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of eight cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.

Night Time Cooling Operation

The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.

If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.

Freeze Protection Operation

The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.

If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.

This process will repeat whenever the hot sensor measures that the water temperature in the solar collectors is approaching freezing.

This model also has enhanced frost protection. The frost element located at the bottom of the solar storage tank will turn on when the circulator activates and the cold sensor measures a very low water temperature at the bottom of the tank. The purpose of the anti-freeze heating unit is to provide additional energy to the water to assist in the prevention of freezing in the solar pipe work and solar collectors. The frost element will turn off when either the water temperature has risen by a few degrees or the circulator deactivates. The water heater will then enter standby mode.

Standby Mode

The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.

Image
Solahart solar ready 270l

* The suggested price is comprised of RRP less the applicable solar incentive and excluding installation. Solar incentive value applies to 272RLX system in Zone 3.
^ Energy savings of up to 65% shown are based on Australian Government approved TRNSYS simulation modelling of a Solahart 272RLX and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on continuous tariff.
† Solahart Warranty Details: 10/3/2 warranty; 10 year cylinder and collector supply, 3 year cylinder and collector labour, 2 year parts supply including labour; applies to a single family domestic dwelling only. Without limiting these periods, a 5-year whole-of-product warranty applies where a rebate has been received under Solar Victoria’s Solar Homes Program for installations from 1st July 2023. For further details, call 131 031.
All other applications have a 3/1/1 warranty; 3 year cylinder and collector supply, 1 year parts supply, 1 year labour.
‡ Enhanced Frost Protection – these systems have a level of enhanced recirculating freeze protection designed to guard against freeze conditions. These systems are suitable to be installed at an altitude not exceeding 600 m above sea level.
∠ Harsh water regions – the Solahart warranty may not apply if the water heater is connected to a water supply which: is scaling with a saturation index >+0.8, or; is corrosive with a saturation index <-1.0, or; has a Total Dissolved Solids content >2500 mg/L.