Samsung AM160FNBDEH Installation Manual page 45

Connecting external contact
Wiring 2Way valve
Use a rated wire to connect it as shown in the illustration and fix it with a cable tie.
Initial setting of the valve is 'closed (no flow)' .
Normal close type
2Way
valve (N/C
type)
*N/C (Normal closed)
Normal open type
2Way
valve (N/O
type)
*N/O (Normal open)
Wiring is different for a N/C (Normal closed) valve and N/O (Normal open) valve.
CAUTION
44
When it is closed
DHW
Mixing tank
2Way valve
When it is closed
DHW
Mixing tank
2Way valve
When it is opened
DHW
Mixing tank
2Way valve
When it is opened
DHW
Mixing tank
2Way valve