NOTE
Wiring of the 3-way valve is different for NC (normal close)
and NO (normal open).
Before wiring, read the Installation & Owner's manual for the
3-way valve carefully and install the valve as showed in the
picture.
Make sure to connect it to the correct terminal numbers.
TBH tank boost heater
Connection of the booster heater cable depends on the
application.
Only when the domestic hot water tank is installed will this
wiring be needed.
The unit only sends a turn on/off signal to the booster heater.
An additional circuit breaker is needed and a dedicated
terminal is needed to supply power to the booster heater.
Type 2
Type 2
Type 2
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