Hisense AHM-080HCDSAA - DHW Setting Temperature; DHW Operation with Heat Pump

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Control function
10.3.1 DHW setting temperature
DHW setting temperature should be done through the master controller interface.
Main Interface → DHW
Mark Description Default Value Range Steps Units
TDHWS DHW Setting temperature 40- TDHWS_max 1 °C
In order to prevent high hot water in the tank an additional function of [Max. Setting Temp] is added:
The conguration of this option should be done through the master controller.
Conguration →DHW
Mark Description Default Value Range Steps Units
TDHWS_max Max. Setting Temp 55 40-A 1 °C
NOTE
：
1. When DHW Electric Heater is available ([DHW_hts] set as [Enabled] , refer to 10.3.3), A=75°C.
2. When Boiler is available and DHW by Boiler is enabled ([HS] set as [HP+Heater+Boiler] or [HP+Heater+Boiler] and
[DHW_B] set as [Enable] , refer to 10.6.3), A=60°C.
3. Circumstance except 1 and 2 , A=55°C.
4. In case of heating up the DHW tank with an outdoor ambient temperature lower than -5ºC and without using the DHW
electrical heater, the setting temperature should not exceed the maximum value in the specied continuous working
range.
10.3.2 DHW operation with heat pump
When DHW operation with heat pump is required, the 3-way valve for DHW changes its normal position diverting to the
sanitary tank inner coil, allowing to heat the tank water temperature.
The conguration of this option should be done through the master controller.
Conguration →DHW
Mark Description Default Value Range Steps Units
DHW_HP_mode Control Powerful Powerful / E󰀩cient
DHW_HP_di󰀨 HP ON Di󰀨erential Temp 5 1-10 1 °C
DHW_HP_tmax HP ON Max. Time 60 20~250~unlimited 1 min
DHW_HP_cycle HP ON interval 1 0-24 1 hour
(1) Heat pump can heat up DHW with 2 di󰀨erent control modes: [Powerful] and [E󰀩cient].
● [Powerful]: This is fast way to heat DHW. Target outlet water temperature of DHW operation is 30°C higher than the tank
temperature.
● [ E󰀩cient] :The e󰀩cient way to heat DHW. Target outlet water temperature of DHW operation 15°C higher than the tank
temperature.
(2) [DHW_HP_di󰀨]: Hysteresis for the start of DHW heating operation with Heat pump.
(3) [DHW_HP_tmax]: Maximum time that DHW will be heat up by heat pump, after that time heat pump stops operating by
this function and DHW is still heated by DHW Electric Heater when it is enabled, until other conditions request stoppage.
This function is invalid when [DHW_HP_tmax] is set [unlimited].
(4) [DHW_HP_cycle]: the minimum time between 2 heat pump cycles of DHW operation, after that time heat pump will be
able to operate again to heat up DHW when heat pump is stopped by the function of [DHW_HP_tmax].