Defrost detection and release
Reverse-Cycle Defrosting
Defrosting Sequence
Heating operation
Outdoor fan ON 
Frost sensing
Defrost detection occurs in either of the following cases:
•The temperature of the heat exchanger remains at or below the L1 line for 3 minutes after the start of HEAT operation.
•The temperature of the heat exchanger remains at or below the L2 line for 120 minutes after the start of HEAT operation.
Outdoor heat |
|
|
exchanger temp. | 0 |
|
| Ambient temp. | |
|
| |
L2 |
|
|
L1 |
|
|
Frosting area |
|
|
Reverse-cycle defrosting operation
Compressor |
| 1 minute after it is stopped, |
Outdoor fan |
| compressor is ON. |
OFF | ||
Indoor fan | OFF | |
OFF | ||
Operation lamp | Repeatedly switches between red | |
|
| and orange illumination. |
Releasing of defrosting
Outdoor heating exchanger temp. is over 57.2°F (14°C). Defrosting operation lasts 12 minutes (maximum).
2 minutes after it is stopped, compressor is ON.
NOTE
If the air conditioner is turned off during the defrosting cycle, it will continue defrosting and turn itself off after defrosting is completed.
CT (Peak current cut-off control)
•This function prevents the circuit breaker or fuse from operating to open the circuit. This function works when electrical current has increased due to an increase in the cooling / heating load, or to a decrease in the power supply voltage. In these cases, operation frequency is reduced or operation is interrupted auto- matically to control the electrical current for operation.
•When the cause of the increase in electrical current is rectified, the system will resume operation in the original mode.
< KHS3082 > |
|
| (A) |
| Cooling | Dry | Heating |
Peak current |
| 25.0 |
|
Hz down |
| 22.0 |
|
< KHS3682> |
|
| (A) |
| Cooling | Dry | Heating |
Peak current |
| 25.0 |
|
Hz down | 24.0 |
| 23.5 |
NOTE Electrical current setting for COOL operation is used during DEFROST operation.
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