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Item
8-2.
Related FC
Operation Mode
FC No.
and Control
Method
23
3E
5B
62
8) Hot water boost operation
A Hot water boost operation heats the water quickly to the set temperature TSC_H = 75 °C (FC_09).
1) How to operate
• When pressing the [Hot water boost] button after pressing the remote controller [
in progress in the heating side switches to in the hot water side, and continues the operation regardless of the hot
water supply start condition, TTW < 38 °C. In addition, the hot water cylinder is immediately energized to start a Hot
water supply operation under TSC_H = 75 °C.
• A Hot water boost operation returns to the usual operation after 60 minutes passed or reached 75 °C.
• The remote controller display during a Hot water boost operation is the same as the set temperature display of a
usual Hot water supply operation.
• The usual set temperature change is used for changing the set temperature during a Hot water boost operation.
Change the BOOST set temperature with FC_09, if necessary.
HOT WATER button set to "ON"
Hot water boost button set to "ON"
75 °C hot water operation (FC_09)
60 minutes operating time (FC_08)
Related FC
FC No.
09
08
Operation flow and applicable data, etc.
Setting item
Boiler-heat pump switching temperature
Control priority between the hydro unit and boiler
(Control valid for operating heat pump mode)
Coordination of the boiler and heat pump
Activate/deactivate A02 error detection
Current heat pump
operation
Hot water
supply side
Usual operation
Setting item
Hot water boost set temperature
Hot water boost operation time
-10 °C
0: Hydro unit control
3: Boiler only (Pump OFF) 0: Boiler and Heat pump
0: Activate
Heating side
Switches to Hot water
supply operation
Default
75 °C
60 min
50
Default
Variable range
-20-20 °C
Independent temperature
control for the hydro unit
and boiler
1: Boiler only
2: Heater only
1: Deactivate
] button, a heat pump operation
Setting available range
40-80 °C
30-180 min
Every 10 min
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