Panasonic CS-VZ9SKE Service Manual page 24

7.2.2 De-icing by 4-Way Valve Activate

Cooling Cycle Operation
INDOOR
INTAKE
AIR
TEMP.
SENSOR
HEAT EXCHANGER
(EVAPORATOR)
COOLING
HEATING
* De-icing will be completed in around 11 minutes or the Pipe Temperature Sensor senses 26°C and above.
7.2.3 Programed Deice Operation at Heating Operation OFF
When the Sensors sense the Outdoor and Pipe Temperature below 0°C, Non Stop (Heating) Deice will be activated
automatically.
7.2.4 Forced Deice Operation by Remote-controller
PRE
Press (Pre Heating) button for 10 sec, Non Stop (Heating) Deice will be activated manually.
HEATING
To stop operation press Stop button.
LIQUID
SIDE
2-WAY
VALVE
PIPE
TEMP.
SENSOR
GAS
SIDE
3-WAY
VALVE
EXPANSION
VALVE
STRAINER
ALUMINIUM ELECTRIC
HEATER
3-WAY VALVE
H
3-WAY
VALVE
ALUMINIUM
ELECTRIC HEATER
R
S
D
I
MUFFLER
ACCUMULATOR
COMPRESSOR
24
OUTDOOR
MUFFLER
ALUMINIUM ELECTRIC
HEATER SENSOR
PIPE
TEMP
SENSOR 2
SENSOR
HEAT EXCHANGER
4-WAY
VALVE
MUFFLER
COMPRESSOR
TEMP. SENSOR
PIPE
TEMP
SENSOR 1
OUTDOOR
AIR
TEMP.
SENSOR