T1 Flow sensor
T2 Outdoor sensor
T3 Hot water sensor (if hot water heater is installed)
T5 Room sensor
T6 Sensor compressor temperature
T8 Sensor heat transfer fluid out
T9 Sensor heat transfer fluid in
T10 Sensor condenser temperature
T11 Sensor refrigerant temperature evaporator
T12 Sensor air temperature evaporator
Location of the temperature sensors
Optima Electric/oil-
fi red boiler
Hot water
heater