15
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Technical data
15.1 Piping diagram: Indoor unit
c
a1 Domestic hot water – hot water out
a2 Domestic hot water – cold water in
b1 Liquid stop valve
b2 Gas stop valve
c Booster heater
Installer reference guide
108
R5T
a1
a2
R3T
Thermistors:
R3T Thermistor heat exchanger – Liquid pipe
R5T Tank thermistor
b1
b2
3D138207
R32 Split series – Domestic hot water tank
4P680077-1A – 2022.11
EKHWET90+120B