Functionality
ESIE13-02
Part 1 – System Outline
22
3
11
4
5
2
Functionality
2.1
System Operation
2.1.1
Heating Mode
Heat pump only
operation
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
Outdoor unit
b
Indoor unit
c
Plate heat exchanger
d
Gas boiler
e
3-way valve
RADIATOR
PUMP
b
d
e
c
a