93
12.4.2.4 Connection of the Main PCB
Zone 1 room sensor
OLP for booster
heater
Outdoor air sensor
Tank sensor
External control
Remote controller
Buffer Tank sensor
Boiler contact /
Defrost Signal
Extra pump
Current
Anode
System
H C N L
C O N C O N
Optional
Thermostat 1
3-way
valve
2-way
valve
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)
AC230V, 12 VA
2-way valve
AC230V N=Neutral Open, Close (Prevent water circuit pass
through during cooling mode)
AC230V, 12 VA
Extra pump
AC230V (Used when Tank Unit pump capacity is insufficient)
AC 230V,
0.6 A max
Boiler contact /
Defrost signal
Dry contact (System setup necessary)
Thermistor inputs
Zone 1 room sensor
PAW-A2W-TSRT It does not work when using the
Optional PCB
Outdoor air sensor
AW-A2W-TSOD (Total cable length shall be 30m or less)
12.4.2.5 Connection of Optional PCB (CZ-NS5P)
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