Unit Control
3-way valve will switch to the water tank, the water pump of the heat pump will always stop but the other
thermal will start. Under the ―
Heat + Hot water
‖ mode, the other thermal only works for space heating,
and the electric heater of the water tank works for water heating. In this case, the 2-way valve is
controlled base d on the setting of the control panel, and the 3-way valve will always stop. During heating
operation, the water pump of the heat pump unit will be stopped; however, during standby status, the
water pump will start.
Logic 2
1. The set point of the other thermal should be equal to that of ―WOT-Heat‖ and both are or lower than
60
℃
.
2. The water pump for other thermal must be always active under the ―Heat‖ mode.
3. Under the ―
Heat
‖ mode, the 2-way valve will be controlled based on the setting of the control panel.
During heating operation, the water pump of the heat pump unit will be stopped; however, during
standby status, the water pump will start but the other thermal will stop. Under the ―
Hot water
‖ mode, the
3-way valve will switch to the water tank, the water pump of the heat pump will always stop but the other
thermal will start. Under the ―
Heat + Hot water
‖ mode, the other thermal only works for space heating,
and the electric heater of the water tank works for water heating. In this case, the 2-way valve is
controlled base d on the setting of the control panel, and the 3-way valve will always stop. During heating
operation, the water pump of the heat pump unit will be stopped; however, during standby status, the
water pump will start.
Logic 3
The heat pump will only send a signal to other thermal, but all the logic of control must be ―stand alone‖.
3.2.4.7 Optional E-Heater
[Operation Instructions]
★
1. At the commissioning parameter setting page, by touching ―
Optional E-Heater
‖, the control panel
will access to the corresponding setting page.
★
2. At the ―
Optional E-Heater
‖ setting page, it can be set to ―
1
‖, ―
2
‖ or ―
Off
‖.
[Notes]
●This setting will be memorized upon power failure.
●Either ―
Other thermal
‖ or ―
Optional E-Heater
‖ can be activated at the same time.
●There are two working logics for ―
Optional E-heater
‖.
Logic 1: either the heat pump or the optional electric heater can be started at the same time.
Logic 2: both the heat pump and the optional electric heater can be started at the same time after
the compressor has run for four minutes and T
Optional Water Temp
is equal to or lower than WOT-
heat
–
Δt2.
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