Panasonic CS-VZ9SKE - Page 92

92
Intake Temperature - Setting Temperature
Control
Non Control
1.0°C
1.5°C
Upper level
Lower level
Compressor Hz
Control
Non Control
35Hz
38Hz
Control content
 Aluminium electric heater 3-way valve is ON in 90 sec.
 Aluminium electric heater 3-way valve ON is completed, at the time that initial conditions are not arranged.
15.3.8 Aluminium Electric Heater (HEATCHARGE) Protection Control
Heat charge will absorb the heat from compressor body and store the heat inside the storage unit. Cool refrigerant
will flow through the heat charge and absorb the accumulate heat before return to compressor.
Safety control for aluminium electric heater.
o Protection by temperature sensor and temperature fuse.
o Aluminium electric heater coil surface temperature less than 100°C in normal condition.
o Aluminium electric heater coil surface temperature around 350°C ~ 390°C in abnormal condition.
Temperature
Fuse wire cut
Software Protected
Hardware Protected
Abnormality (F83)
Temp. Fuse
Sensor Temp. 2
Sensor Temp. 1
Heater OFF
Heater ON
 Heater OFF by sensor (1) temperature detection.
 Heater STOP by sensor (2) temperature detection.
 Temperature fuse makes heater when software OFF protection not active.