Protection Control For Heating Operation - Panasonic CS-RE18QKE Service Manual

13.2.6 Odor Cut Control

To reduce the odor released from the unit.
Start Condition
o
 AUTO FAN Speed is selected during COOL or DRY operation.
 During freeze prevention control and timer preliminary operation, this control is not applicable.
Control content
o
 Depends on compressor conditions:
1. Compressor OFF → Compressor ON.
The indoor unit fan stops temporarily and then starts to blow at minimum airflow for 30 seconds.
2. Compressor ON → Compressor OFF.
The indoor unit fan stops for 90 seconds and then blows at minimum airflow for 20 seconds.

13.3 Protection Control For Heating Operation

13.3.1 Intake Air Temperature Control
Compressor will operate at limited frequency if indoor intake air temperature is 30°C or above.
13.3.2 Outdoor Air Temperature Control
The maximum current value is regulated when the outdoor air temperature rises above 14°C in order to avoid
compressor overloading.
13.3.3 Overload Protection Control

The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown
in below figures.

If the heat exchanger temperature exceeds 60°C, compressor will stop (RE18QK).
13.3.4 Cold Draught Prevention Control
When indoor pipe temperature is low, cold draught operation starts where indoor fan speed will be reduced.
13.3.5 Deice Operation
When outdoor pipe temperature and outdoor air temperature is low, deice operation start where indoor fan motor and
outdoor fan motor stop and operation LED blinks.
RE18QK
Indoor Heat
Exchanger Temp.
RE24QK
44