13.3 Protection Control For Cooling Operation
13.3.1 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 1 minute after the compressor starts.
Compressor frequency will adjust base on outdoor air Temperature.
13.3.2 Freeze Prevention Control 1
1
When Mono bloc unit (Water System) heat exchanger temperature is lower than 0°C continuously for
10 seconds, compressor will stop operating.
2
Compressor will resume its operation three minutes after the Mono bloc unit (Water System) heat exchanger
is higher than 1°C.
3
Mono bloc unit heat exchanger freeze prevention (H99) will memory in error history.
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