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4. COOLING PRESSURE OVER RISE PROTECTION
When the outdoor unit heat exchange sensor temperature rises to 67.0°C or greater,
the compressor is stopped and error display is indicated.
5. HIGH TEMPERATURE RELEASE CONTROL ( HEATING MODE )
On heating mode, the compressor frequency is controlled as following based on the
detection value of the indoor heat exchanger temperature sensor.
(Fig 14 : Heating Overload Protection Control)
Indoor heat exchange
temperature
Compressor is OFF
63°C
The compressor frequency is
decreased 5rps every 20 seconds.
54°C
The compressor frequency is
decreased 6rps every 60 seconds.
53°C
The compressor frequency is
decreased 2rps every 60 seconds.
A°C
Release
B°C
Release
Stable range
01-25
heat exchange
Outdoor
temperature
= < Th
-9°C
-11°C
= < Th <
-9°C
= < Th <
-13°C
-11°C
= < Th <
-15°C
-13°C
-15°C
Th <
+
In one operation of
All indoor unit
the indoor unit
opeate,
: Qu air than
: Qu air
A°C
B°C
A°C
52°C
50°C
48°C
52°C
50°C
48°C
52°C
48°C
48°C
50°C
46°C
48°C
48°C
44°C
48°C
B°C
46°C
46°C
46°C
46°C
46°C
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Table of Contents
Troubleshooting
