Panasonic WH-MXC09J3E8 Service Manual page 66

4. Room Thermistor
Mono bloc
Connect floor heating or radiator directly to Mono bloc.
Install separate external room thermistor (specified by Panasonic) in the room where floor heating is installed.
This is an application that uses external room thermistor.
There are 2 kinds of circulation water temperature setting method.
Direct: set direct circulation water temperature (fixed value)
Compensation curve: set circulation water temperature depends on outdoor ambient temperature
In case of Room thermo or Room thermistor, compensation curve can be set.
In this case, shift compensation curve according to the thermo ON/OFF situation.

(Example) If room temperature increasing speed is;
very slow → shift up the compensation curve
very fast → shift down the compensation curve
12.2.1.2 Examples of Installations
Floor heating 1 + Floor heating 2
Mono bloc
Buffer tank
Connect floor heating to 2 circuits through buffer tank as shown in the figure.
Install mixing valves, pumps and thermistors (specified by Panasonic) on both circuits.
Install the remote controller in one of the circuit and use it as Room Thermostat.
Install external Room Thermostat (field supply) in another circuit.
Both circuits can set circulation water temperature independently.
Install buffer tank thermistor on buffer tank.
It requires connection setting of buffer tank and ∆T temperature setting at heating operation separately.
This system requires optional PCB (CZ-NS4P).
Mono bloc compare between room temperature
and setting temperature on the Remote
controller to control HP and circulation pump.
Max: 30m
Thermistor
Floor heating
Mixing valve 2
Mixing valve 1
Pump 1
Floor heating 1
Room thermostat
(field supply)
Thermistor 2
Pump 2
Thermistor 1
Floor heating 2
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Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Room thermistor
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Room thermostat
Internal
Zone 2:Sensor
Room
Room thermostat
(External)