Panasonic WH-MXC16J9E8 Service Manual page 88


Buffer Tank connection select "NO" &
One zone system is select
o

This zone room temperature control by either one of the 4 room sensor (Room Th, Int/Ext Room
Thermostat, Water temp.)

Target Zone Water Temperature calculate base on selected temperature control type (Compensation or
Direct) and selected room sensor.

Target Water Temperature will set same as Target Zone Water Temperature

Target Water Temperature is a temperature for heat pump to operate refer to indoor water outlet sensor.

Heat pump and water pump OFF when ROOM Thermo OFF (Zone thermo OFF by Room Th or Room
Thermostat).
* There will be no zone sensor connected to zone 1 (No zone sensor error), mixing valve and zone pump will not
operate.
2 zone system select
o

Each zone room temperature is control by each sensor which select from either one of the 4 room sensor

Target Zone 1 & 2 Water Temperature is calculated based on selected temperature control type
(Compensation or Direct) and selected room sensor.
* Zone Mixing Valve & Zone pump will operate to achieve Target Zone Water Temperature which refer to
zone sensor.
* Zone Sensor will detect if zone sensor is open or short.

Target Water Temperature will set same as the active & higher zone water temperature setting. (When
cooling mode, lower zone water temp setting)

Target Water Temperature is the temperature for heat pump to operate refer to indoor water outlet
sensor.

Heat pump and water pump OFF when ROOM Thermo OFF (Both Zone thermo OFF by Room Th or
Room Thermostat).

Buffer Tank Connection select "YES" &
1 zone system or 2 zone system select
o

Each zone control by each sensor which select from either one of the 4 room sensor

Target Zone 1 & 2 Water Temperature calculate base on selected temperature control type
(Compensation or Direct) and selected room sensor. Each zone have their own Target Zone Water
Temperature.
* Zone Mixing Valve & Zone pump will operate to achieve each Target Zone Water Temperature which
refer to zone sensor
* Zone Sensor will detect if zone sensor is open or short.

Target Buffer Tank Temperature will be set as active & higher zone water temperature setting + Buffer
Delta T. (Heating) Target Buffer Tank Temperature will be set as active & lower zone water temperature
setting (Cooling).

Target Water Temperature will set as Target Buffer Tank Temperature + [2°C] (Heating) Target Water
Temperature will set as Lower or Active Target Zone Water Temp. + [-3°C] (Cooling)

Target Water Temperature is a temperature for heat pump to operate refer to indoor water outlet sensor.

Heat pump and water pump OFF when ROOM thermo OFF

Heat mode: ROOM thermo OFF (Buffer Tank Temperature

Cool mode: ROOM Thermo OFF (Both Zone thermo OFF by Room Th or Room Thermostat)
13.1.7 Auto Mode Operation
Heat To Cool
Setting Temp.
Outdoor Ambient
>
COOL
MODE
HEAT
MODE
88
Target Buffer Tank + [0°C]
Cool To Heat
Setting Temp.