Sanyo SAP- FR99EH - 5-8. Defrosting Operation (Heating)

5-8. Defrosting Operation (Heating)
- Reverse-cycle Defrosting
Defrosting Sequence
Heating Operation
- compressor ON
- 4-way valve ON
Frost Detection
Frosting is assumed mostly under the following condition
- indoor heat exchanger coil temperature drops 0,8°c
per 6 minutes and it repeats 3 times in succession
- integrated operating time of compressor is longer
than 3 hours
- temperature of indoor heat exchanger coil, immediately
before thermo goes off, is below Td+5,6°C, etc
NOTE:
The values shown as Td differs according to the models
Td
Reverse-cycle defrosting operation
- compressor ON
- outdoor fan OFF
- 4-way valve OFF
- indoor fan cold draft prevention mode
Releasing of defrosting
- Defrosting operation lasts 8 to 12 minutes (max)
- compressor current during reverse-cycle defrosting
operation exceeds certain ampere
9000 BTU/h
38°C
12000 BTU/h
44°C
20