Heating only unit
Operating Range (Heating)
Size 10.2 - 12.2 - 14.2 Size 16.2
Size 19.2-22.2-27.2-30.2-35.2-40.2-45.2 Sizes 43.2-50.2-55.2-60.2-70.2-80.2-90.2-100.2-120.2
Twu [°C] = Hot side water outlet temperature
Tws [°C] = Cold side water outlet temperature
The limits refer to DT=5 °C on both the hot and cold sides
1. Normal operating range
2. Operating range in which a glycol/water mix must be used, given the water temperature at the cold side exchanger outlet
3. Range of operation with modulating valve or hot side regulating inverter pump (optional congurations)
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