Water to water heat pump

The Water to Water heat pump alone is not capable of cooling the liquid as additional heat sources (eg well water, ground heat, etc.) are needed. The heat pump equipment is located inside the building. The heat generated by the heat pump is transferred to the building by a water transfer medium, where additional units (eg fan coil, air handling unit, etc.) can be used to produce the desired temperature conditions in the spaces. In terms of the operation of the Water to Water heat pump, we distinguish 2 types. For smaller and more intelligent solutions, the heat pump includes a shift valve, which in itself can reverse the direction of operation (cooling or heating). For larger systems, this shift must be built into the external hydraulic system and solved for shift control.

Refigirant gas ODP GWP
HFC R-410A 0 2088
HFC R-134A 0 1430
HF0 R1234ze 0 6
HFC R-513A 0 631
HFC R-407C 0 1774
R-454B 0 466

The GWP shows the amount of CO2 equivalent to the test substance in the greenhouse effect over 100 years (kgCO2 / kg). The lower the number, the less potent the greenhouse effect.

Ozone depletion is indicated by the ODP value (Ozone Depletion Potential), which can be between 0 and 1.

Water to water heat pump 
Reversible heat pumps
Type Capacity Function Refigirant gas  Compressor Fan Heat exchanger 
WWR MTD2 0011ms – 0121ts 5,20 – 33,4 kW Cooling/heating/DHW HFC R-410A Scroll Plate
WWR DHW2 0011ms – 0121t 5,10 – 34,8 kW Cooling/heating/DHW HFC R-407C Scroll Plate
NX-WN 0122 – 1204 37,5 – 396 kW Cooling/heating HFC R-410A Scroll Plate
WWH-HT 0071 – 0302 23,6 – 94,2 kW Cooling/65 °C heating/DHW HFC R-410A Scroll Plate
FOCS-W /H 0401 – 1302 87 – 298 kW Cooling/heating HFC R-134a Screw Shell and tube
NX-W /H 0122 – 1204 38,1 – 398 kW Cooling/heating HFC R-410A Scroll Plate
i-FX-W (1+i) /H 1402 – 4652 532 – 1784 kW Cooling/heating HFC R-134a Inverter driven screw Flooded
i-FX-W (1+i)-G05/H 1402 – 4652 532 – 1784 kW Cooling/heating HFC R-513A Inverter driven screw Flooded
FOCS2-W /H 1301 – 9604 306 – 2416 kW Cooling/heating HFC R-134a Screw Shell and tube
FOCS2-W-G05 /H 1301 – 9604 306 – 2416 kW Cooling/heating HFC R-513A Screw Shell and tube
BWR MTD2 0011ms – 0121ts 5,08 – 43,6 kW Cooling/heating/DHW HFC R-410A Scroll Plate
Only heating
Type Capacity Function Refigirant gas  Compressor Fan Heat exchanger 
WW-HT 0071 – 0302 27,5 – 109 kW 65 °C heating/DHW HFC R-410A Scroll Plate
EW-HT 0152 – 0612 70,2 kW – 279 kW 78 °C heating/DHW HFC R-513A Scroll Plate
BW-HT 0071 – 0302 20,3 – 79,1 kW 65 °C heating/DHW HFC R-410A Scroll Plate