Outdoor Air Temperature Control; Cooling Overload Control - Panasonic CS-E15DB4EW Service Manual

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE
8.2.2. Protection Control For Cooling & Soft Dry Operation
8.2.2.1.

Outdoor Air Temperature Control

The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.
This control will begin one minute after the compressor starts.
8.2.2.2.

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 63°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
1. Purpose
To prevent electronic components temperature rise during cooling overload.
2. Judgement Conditions
a) Outdoor temperature
b) Outdoor total current above 5 A.
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