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IPM Overheating Prevention Control
• If temperature of IPM exceeds 103qC, compressor will be stopped. It will restart in 2 minutes. Temperature for restarting: 90qC.
• If the excess occurs 4 times within 30 minutes after compressor starts, the compressor will be stopped and timer LED on the
indoor unit will be blinking. ("F96" is to be confirmed.)
12.2.5. Compressor Overheating Prevention Control
1. If discharge pipe temperature exceeds 100qC, compressor power will be limited.
2. If discharge pipe temperature exceeds 112qC, compressor will be stopped.
3. If the above excess occurs 4 times per 10 minutes, timer LED will be blinking. ("F97" is to be confirmed.)
12.2.6. Outdoor High Pressure Prevention Control (Cooling and Dry operations)
1. If outdoor heat exchanger temperature exceeds 63qC in cooling or dry operation, compressor will be stopped.
2. Timer LED is not blinking. ("F95" is memorized, then.)
12.2.7. Compressor Protection Control (Refrigeration Cycle Abnormality)
In cooling and Dry operations
1. When compressor is operated continuously for 5 minutes in the maximum cooling power: a running current of 0.7 - 1.4A and
"[Indoor intake air temperature] - [Indoor heat exchanger temperature]" < 4qC, compressor will be stopped.
2. If the above excess occurs twice for 20 minutes, timer LED is to be blinking. ("F91" is to be confirmed.)
In Heating operation
1. When compressor is operated continuously for 5 minutes in the rated heating power: a running current of 0.7 - 1.4A and
"[Indoor heat exchanger temperature] - [Indoor intake air temperature]" < 5qC, compressor will be stopped.
2. If the above excess occurs twice for 20 minutes, timer LED is to be blinking. ("F91" is to be confirmed.)
12.2.8. Four-way Valve Operation Detection Control (Switching Abnormality between
Cooling and Heating)
In Cooling operation
1. When indoor heat exchanger temperature exceeds 45qC in 4 minutes after compressor starts, compressor will be stopped.
2. If the above excess occurs 4 times per 30 minutes, timer LED is to be blinking. ("F11" is to be confirmed.)
In Heating operation
1. When indoor heat exchanger temperature is below 0qC in 4 minutes after compressor starts, compressor will be stopped.
2. If the above excess occurs 4 times per 30 minutes, timer LED is to be blinking. ("F11" is to be confirmed.)
12.2.9. Anti-Freezing Control (Cooling and Dry operations)
Limit of Cooling power
1. When temperature of indoor heat exchanger is below 5qC, operating frequency will be decreased.
2. When temperature of indoor heat exchanger exceeds 7qC, operating frequency will be increased. (But, up to programmed
frequency.)
3. When temperature of indoor heat exchanger is below 0qC continuously for 6 minutes, compressor will be stopped.
4. Timer LED is not blinking. ("F99" is memorized, then.)
Limit of Indoor fan speed
• When temperature of indoor heat exchanger is below 6qC (2qC at Dry) continuously for 6 minutes, indoor fan speed will be
increased by 50 rpm.
12.2.10. Outdoor Air Temperature Control
In Cooling and Dry operations
1. When outdoor air temperature is below 25qC, the maximum power will be limited up to about 80 - 100% of the rated power.
2. When outdoor air temperature is below 18qC, the maximum power will be limited up to about 50 - 100% of the rated power.
3. When outdoor air temperature is below 11qC, the maximum power will be limited up to about 26 - 81% of the rated power.
12.2.11. Indoor Intake Air Temperature Control (Heating operation)
1. When indoor air temperature is 35qC or more, the maximum power will be limited up to the rated power.
2. When fan speed is set at "Lo" and intake air temperature is below 21qC, the maximum power will be limited up to the rated
power.
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