Protection Control For Cooling & Soft Dry Operation; Outdoor Air Temperature Control; Cooling Overload Control - Panasonic CS-E28GKE Service Manual

13.1.5. Compressor Overheating Prevention Control
Instructed frequency for compressor operation will be regulated by compressor top temperature. The changes of frequency are as
below figure.
13.2. Protection Control For Cooling & Soft Dry Operation

13.2.1. Outdoor Air Temperature Control

The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.

13.2.2. Cooling Overload Control

i. Pipe temperature limitation/restriction
• Detects the Outdoor pipe temperature and carry out below restriction/limitation (Limit the compressor Operation frequency)
• The compressor stop if outdoor pipe temperature exceeds 65°C.
• If the compressor stops 4 times in 20 minutes, Timer LED blinking (F95: outdoor high pressure rise protection)
ii. Electrical part temperature rise protection control
• To prevent electrical component temperature rise during cooling overload.
• Judgement condition is by outdoor temperature (sampled every 10s).
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