3. Defrost Flow Chart
The defrosting shall proceed by the integrating operation time, outdoor temperature and outdoor heat exchanger temperature as follows.
Heating operation start : Compressor ON
(Not defrosted for 10 minutes)
Normal defrost
Integrating defrost |
Outside air temp. >
Outdoor HEX temp.
Below - 17°C(1.4°F)
Outside air temp. <
Outdoor HEX temp.
-Outside air temp. Below -
Outdoor HEX temp. Below -
Intermittent | operation | Continuous operation | |||||
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| Compressor |
| Compressor |
| Compressor | ||
| OFF count : |
| integrating |
| integrating | ||
| 40 times |
| operation: |
| operation: | ||
| (Less than 10min.) |
| Over 240 min. |
| Over 213 min. | ||
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| Outdoor |
| Outdoor | |
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| heat exchanger |
| heat exchanger | |
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| temperature: |
| temperature: | |
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| Below - 3°C |
| Below - 5°C | |
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| (26.6°F) |
| (23°F) | |
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Defrost start
Defrost Indicator: [Operation lamp]
7 sec ON / 2 sec OFF
Outdoor fan : OFF
Compressor speed : 0 rps
Compressor speed : 90rps
Outdoor HEX temp.: Over 16°C (60.8°F)
or
Compressor ON time: Maximum 15 minutes
Defrost end
