Connection of the main PCB
Signal inputs
Optional Thermostat
L N =AC230V, Heat, Cool=Thermostat heat, Cool terminal
❈
It does not function when using the Optional PCB
External control
Dry contact Open=not operate, Short=operate
(System setup necessary)
Able to turn ON/OFF the operation by external switch
Remote controller
Connected (Please use 2 cores wire for relocation and extension. Total cable length
shall be 50m or less.)
Outputs
3-way valve
AC230V N=Neutral Open, Close=direction (For circuit switching when connected to
DHW tank)
2-way valve
AC230V N=Neutral Open, Close (Prevent water circuit pass through during cooling
mode)
Extra pump
AC230V (Used when Tank Unit pump capacity is insufficient)
Boiler contact
Dry contact (System setup necessary)
Thermistor inputs
Zone 1 room sensor
PAW-A2W-TSRT
the Optional PCB
❈
It does not work when using
Outdoor air sensor
AW-A2W-TSOD (Total cable length shall be 30m or less)
Connection of Optional PCB (CZ-NS4P)
Zone 1 room sensor
Outdoor air sensor
Tank sensor
External control
Remote controller
Boiler contact
Extra pump
H C N L
C O N C O N
Optional
Thermostat 1
3-way
valve
2-way
valve
Ext.
comp.
SW
Heat/
Cool
SW
SG
signal
Vcc
Bit1
Bit2
Solar
sensor
Mixing
valve 2
Mixing
valve 1
Optional
Thermostat 2
Optional
Thermostat 1
Demand
signal
Zone 1
water
sensor
Zone 2
water
sensor
Pool
water
sensor
Buffer
Tank
sensor
Zone 1
room
sensor
Zone 2
room
sensor
Zone 1
Pump
Error
signal
Pool
Pump
Solar
Pump
Zone 2
Pump
N O C
N O C
L
N Cool Heat L
N Cool Heat