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Operating advanced function _37
ENGLISH
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).