How To Fix External Device - Panasonic WH-MXC09J3E8 Service Manual

12.3 How to Fix External Device

12.3.1 Connecting Cables Length
When connecting cables between Mono bloc and
external devices, the length of the said cables must
not exceed the maximum length as shown in the table.
External device
Two-way valve
Three-way valve
Mixing valve
Room thermostat
Booster heater
Extra pump
Solar pump
Pool pump
Pump
Boiler contact /
Defrost signal
External control
Tank sensor
Room sensor
Outdoor air sensor
Tank OLP
Buffer tank sensor
Pool water sensor
Solar sensor
Water sensor
Demand signal
SG signal
Heat/Cool switch
External compressor switch
12.3.1.1 Connection of the Main PCB
C O N C O N
2-way 3-way
valve valve
 Signal inputs
L N =AC230V, Heat, Cool=Thermostat heat, Cool
Optional
terminal
Thermostat
It does not function when using the optional PCB
Dry contact Vcc-Bit1, Vcc-Bit2
OLP for
(System setup necessary)
booster
It is connected to the safety device (OLP) of DHW
heater
tank.
Dry contact Open=not operate, Short=operate
External (System setup necessary)
control Able to turn ON/OFF the operation by external
switch
Connected (Please use 2 cores wire for relocation
Remote
and extension. Total cable length shall be 50m or
controller
less.)
Maximum cables length (m)
50
50
50
50
50
50
50
50
50
50
50
30
30
30
30
30
30
30
30
50
50
50
50
OLP for booster
heater
Zone 1 room sensor
Outdoor air sensor
Tank sensor
External control
Remote controller
Boiler contact /
Defrost signal
Extra pump
Booster heater
H C N L
Optional
Thermostat 1
open/short
 Outputs
AC230V N=Neutral Open, Close=direction (For
3-way valve
circuit switching when connected to DHW tank)
AC230V N=Neutral Open, Close (Prevent water
2-way valve
circuit pass through during cooling mode)
AC230V (Used when Mono bloc pump capacity is
Extra pump
insufficient)
Booster AC230V (Used when using booster heater in DHW
heater tank)
Boiler
contact /
Dry contact (System setup necessary)
Defrost
signal
 Thermistor inputs
Zone 1 room PAW-A2W-TSRT
sensor the optional PCB
Outdoor air AW-A2W-TSOD (Total cable length shall be 30m or
sensor less)
Tank sensor Please use Panasonic specified part
12.3.1.2 Connection of Optional PCB
(CZ-NS4P)
Optional
Thermostat 2
L N Cool Heat L
Pool
Pump
Solar
Pump
Error
signal
Zone 1
Pump
Zone 2
Pump
Zone 2
room
sensor
 Signal inputs
Optional L N =AC230V, Heat, Cool=Thermostat heat, Cool
Thermostat terminal
Dry contact
(System setup necessary)
SG signal
Switching SW (Please connect to the 2 contacts
controller)
Heat/Cool Dry contact Open=Heat, Short=Cool (System setup
SW necessary)
External Dry contact Open=Comp.OFF, Short=Comp.ON
comp.SW (System setup necessary)
Demand DC 0~10V (System setup necessary)
signal Please connect to the DC 0~10V controller.
72
It does not work when using
Optional Mixing Mixing
Thermostat 1 valve 1 valve 2
N Cool Heat N O C N O
Zone 1 Buffer Pool Zone 2 Zone 1 Demand Solar
sensor
room Tank water water water signal
sensor sensor sensor sensor sensor
Vcc-Bit1, Vcc-Bit2 open/short
C
Ext.
comp.
SW
Heat/
Cool
SW
Vcc
SG
Bit1
signal
Bit2