DHW Application
The FSV #3011 in the wired remote controller should be set to “1(Yes)” to use DHW function.
Heat Pump Variables for Controlling DHW Tank
•Maximum DHW tank temperature with R410A(refrigerant) heat pump operation : FSV #3021, Default 50˚C, Range : 45 ~ 55˚C.
•Temperature difference determining the heat pump OFF temperature : FSV #3022, Default 2˚C, Range : 2 ~ 10˚C.
•Temperature difference determining the heat pump ON temperature : FSV #3023, Default 5˚C, Range : 1 ~ 20˚C.
•DHW heating mode timer : If there is simultaneous requests of space heating/cooling and DHW heating, this mode timer will toggle operation modes.
-FSV #3024(minimum DHW operating time, Default 5 min., Range 0 ~ 20 min.), #3025(maximum DHW time, Default 30 min., Range 5 ~ 95 min.), #3026(time interval between two consecutive DHW mode operations, Default 3 hour, Range 0 ~ 10 hour)
The FSV #4011 for DHW priority should be set to “0(DHW)”(Default) for the mode timer action as mentioned above.
If not, the space heating mode by heat pump has a priority over the DHW heating mode under the specified low outdoor temperature(#4012).
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