1. Standard heating operation condition: ambient temp. 7℃ DB/6℃ WB, return water temp. 35℃ and leaving water temp. 44℃; maximum bearing pressure of water system is 1.0MPa.
2. Calorific value of gas: calculated as per 8120kcal/m3 (34.02MJ/m3 or 9.45kWh/m3) at 15 °C - 1013 mbar. Gas standard pressure is 2500Pa.
3. Adjustment range refers to the heat pump ability for stepless adjustment of heating capacity.
4. When ambient temperature is below 0℃, glycol must be added in the water for avoiding the freezing.