Key Features

Automatic defrost is standard on every Air-to-Water Heat Pump. Advanced de-ice control allows the Heat Pump to continue performing in low ambient temperature conditions. Hot gas bypass or full reverse cycle de-ice is standard.

The entire evaporator coil is epoxy coated to provide long lasting protection from corrosive atmospheres. The evaporator incorporates rifle bore copper tubes, which increase heat transfer by up to 20% over smooth bore tubing. Slit aluminium fins provide even greater transfer of heat from the air to the refrigerant.

Heat exchanger options include a double-wall (vented) design, where water and refrigerant circulate in separate tubes with an air gap providing a safety mechanism preventing any potential cross contamination of refrigerant into potable water.

Air to Water Heat Pump Specifications

Product Data

    Ducted Exhaust Non Ducted Exhaust
Vertical Discharge   952 022 953 022
Heating Capacity1 kW 16.4 16.4
Power Input1 kW 4.1 4.1
Coefficient of Performance1   4 4
Recovery @ 50°C Rise1 L/hr 282 282
Operating Range (ambient) ºC 0 – 40 0 – 40
Outlet Temperature ºC 65 65
Refrigerant   R134a R134a
Water Pressure Relief      
Valve Setting kPa 1,000 1,000
Water Expansion Control      
Valve Setting2 kPa 850 850
Maximum Water Supply Pressure      
Without ECV2 kPa 800 800
With ECV2 kPa 650 650
Electrical Connection   3 Phase / 415V / 50Hz 
Max Current per Phase (running) Amps 14.9 / 11.2 / 11.2 
Minimum Circuit Size (per phase)  Amps 20 20
Air Flow L/s 1,600 1,600
Maximum Static Pressure Pa 40 -
Minimum Ventilation per inlet and outlet m2 1 1
Minimum room volume for indoor installation  m3 7.5 7.5
Sound Pressure Level @ 1m dBA 70 61
Approx Weight Empty kg 130 130
Approx Weight Full kg 135 135
Storage per Heat Pump L 400 to 4000 
Dimensions      
Length mm 1,150 1,150
Depth (Discharge Vert/Horiz) mm 565/640 565/585
Height mm 1045 980
Clearances      
Front mm 600 600
Back (vertical discharge models) mm 50 50
Back (horizontal discharge option) mm 1,200 1,200
Sides mm 600 600
Top (vertical discharge models) mm 800 1,200
Top (horizontal discharge option) mm 50 50

  

Heat Pump Pipe Sizing Chart

Number of Heat Pumps in Parallel 1 2 3 4 5 6
Primary Pump Grundfos CM 3-2    
Branch Size 32 32 32 32 32 32
Header Size 32 50 65 65 80 80

 

 Recovery

  Ambient Temperature °C
  0 5 10 15 20 25 30 35 40
Output (kW) 9 11.1 13 14.6 16.4 18.3 20.3 22.2 24.1
Recovery – Litres per hour @                  
20°C rise 387 478 558 627 705 789 872 956 1036
30°C rise 310 383 447 502 564 631 698 765 829
35°C rise 258 319 372 418 470 526 582 638 691
40°C rise 194 239 279 313 353 394 436 478 518
45°C rise 172 213 248 279 313 351 388 425 461
50°C rise 155 191 223 251 282 316 349 383 415
55°C rise 141 174 203 228 256 287 317 348 377

1 20ºC / 65RH
2 ECV not supplied with the water heater. Materials and specifications are subject to change without notice due to ongoing product improvement.

HIGH EFFICIENCY HEAT PUMP WATER HEATING

Improved Features

The Rheem Commercial Heat Pump now delivers up to 65oC hot water with the use of R134a refrigerant. Fine tuning of the system performance in our world class psychrometric test facility has resulted in an improved Coefficient of Performance (COP) of 4.0, which increases efficiency and reduces energy consumption. We have also increased the recovery rate, which provides more hot water in a shorter time frame.

Building recirculation can now be reheated through the heat pump, negating the need for auxiliary heaters to perform this function, further reducing building energy costs.

Easier Installation

11/4” threaded inlet and outlet fittings make connections easier and a high head pump improves installation flexibility and system reliability. The aluminium base tray has in-built fall which helps to remove condensate faster.

Quality Product

The Rheem Commercial Heat Pump is truly commercial grade with quality components used throughout such as a Copeland scroll compressor, EBM fans, SWEP heat exchanger and Danfoss control gear. The evaporator is dipped to provide extra protection in corrosive atmospheres.

Options

The Rheem Commercial Heat Pump is supplied with a powder coated zinc annealed cabinet and vertical discharge fans as standard. A range of options are available including:

  • Aluminium or Stainless Steel Cabinet
  • Horizontal Discharge Fans (ducted and non-ducted)

Horizontal discharge models can be stacked two high to reduce plant footprint.

Ducted models are designed to discharge the cold air outside of the plant room. Maximum static pressure in the duct is 40Pa. A duct 565mm wide x 800mm high with minimum resistance at the duct outlet is recommended.

Brochures

Solahart Commercial Heat Pump: Download

Accent Air Commercial Heat Pump Range: Download


Case Studies

Middelburg Mine - South Africa: Download