Daikin EHYHBH05AAV3 Service Manual page 22

Functionality
2 Functionality
1 1
2.1 System Operation
2.1.1 Heating Mode
Heat pump only
operation
3
4
5
Part 1 – System Outline
The heat pump and pump are enabled, the gas boiler is bypassed.
Space heating is enabled.
Allowable outdoor temperature range: -25 to 25°C.
a b
c
a
b
c
d
e
d e
PUMP
RADIATOR
Outdoor unit
Indoor unit
Plate heat exchanger
Gas boiler
3-way valve
22
ESIE13-02A