Cooling Operation; Thermostat Control; Cool Mode Operation - Panasonic WH-MDC05F3E5 Service Manual

12.1.3 Cooling Operation

12.1.3.1

Thermostat control


Compressor is OFF when Water Outlet Temperature – Internal Water Setting Temperature > -1.5°C for
continuously 3 minutes.

Compressor is ON after waiting for 3 minutes, if the Water Outlet Temperature – Water Inlet Temperature
(temperature at thermostat OFF is triggered) >3°C.
12.1.3.2

Cool Mode Operation

1 3 ways valve control:
3 ways valve switch and fix to cooling side.
o
2 Heat pump operates follow normal cooling operation.
3 Back up heater DOES NOT operate during cool mode.
4 Solar 3 way valve operates follow solar operation specification.
5 2 ways valve control:
2 ways valve is closed.
o
Cool Mode Operation Time Chart
3 ways valve
On
Off
2 ways valve
Open
Close
Heat Pump
On
Off
Backup Heater
On
Off
Solar Request
On
Off
Solar 3 way valve
On
Off
W ater Outlet Temp
Tank Temp.
Mode On
Solar Off due to
tank > solar temp.
o
8.5 C
o
77 C
HeatPump
Thermo Off
41
o
16 C
o
70 C
HeatPump
Thermo On