3 protection control for heating operation – Panasonic CS-XE9PKUA User Manual

Page 47

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47

13.2.6 Odor

Cut

Control

š To reduce the odor released from the unit.

o

Start

Condition

ƒ

AUTO FAN Speed is selected during COOL or DRY operation.

ƒ

During freeze prevention control and timer preliminary operation, this control is not applicable.

o

Control

content

ƒ

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 freq., if indoor intake air temperature is 86°F (30°C) or above.

13.3.2 Outdoor Air Temperature Control

š The Max current value is regulated when the outdoor air temperature rise above 57.2°F (14°C) in order to avoid

compressor overloading.

13.3.3 Overload Protection Control

š The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown

below.

š If the heat exchanger temperature exceeds 140°F (60°C), compressor will stop.

13.3.4 Low Temperature Compressor Oil Return Control

š In heating operation, if the outdoor temperature falls below 14°F (-10°C) when compressor starts, the

compressor frequency will be regulated up to 600 seconds.

13.3.5 Cold Draught Prevention Control

š When indoor pipe temperature is low, cold draught operation starts where indoor fan speed will be reduced.

13.3.6 Deice

Operation

š 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.

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