Panasonic CS-Z35YKEA - Protection Control for Cooling & Soft Dry Operation

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15.2 Protection Control for Cooling & Soft Dry Operation
15.2.1 Outdoor Air Temperature Control
 The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the
diagram belo
w
.

This control will begin 1 minute after the compressor start
s.

Compressor frequency will adjust base on outdoor air temperature.
 The compressor will be stopped to avoid compressor overloading
.
15.2.2 Cooling Overload Control
 Detects the Outdoor pipe temperature and carry out below restriction/limitation (Limit the compressor Operation
freque
ncy)
.

The compressor stop if outdoor pipe temperature exceeds 60°
C.

If the compressor stops 4 times in 20 minutes, Timer LED blinking (F95 indicated: outdoor high pres
sure rise
prote
ction
).
15.2.3 Freeze Prevention Control 1
 When indoor heat exchanger temperature is lower than 0°C continuously for 6 minutes, compressor will stop
operating.

Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 5°C.
 At the same time, indoor fan speed will be higher than during its normal operation
.

If indoor heat exchanger temperature is higher than 13°C, the fan speed will return to its normal operation.
15.2.4 Freeze Prevention Control 2
 Control start conditions
o
During Cooling operation
and soft dry operation

During thermo OFF condition, indoor intake temperature is less than 10°
C or

Compressor stops for freeze prevention control
o Either one of the conditions above occurs 5 times in 60 minutes.
 Control conten
ts
o
Operation stop
s
o
Timer LED blinks and “H99” indicated
-10°C
-27°C
COMP. ON
COMP. OFF
Outdoor
Air
Temperature