AE-X4M30PU
15
3) During defrosting
When defrosting begins, the compressor stops. Approximately 1 minutes later, the compressor reactivates in the refrigeration
cycle, and the outdoor heat exchanger is defrosted. Each mode is as follows:
The outdoor fan is s topped.
The operating frequency is as shown in the table below.
The indoor fan is s topped.
All expansion valve are open.
for 5 minutes 4800 rpm
ater that 4000 rpm
4) Defrost stop
When defrosting time exceeds 10 minutes When the temperature of the outdoor heat exchanger rises above approximately 59°F°C
(15°C) Defrost stop is determined by either of the above conditions, and the compressor is s topped. At the same time, the outdoor
fan go ON. The compressor is reactivated in the heating cycle 1 minutes after it was stopped, and normal control resumes.
12. 5°F(-15°C) AUTO STOP FUNCTION
• During the heating operation, the unit will automatically stop when the
outdoor temperature drops below 5°F(-15°C) to prevent the outdoor unit
from the damage caused by the freezing of the drained water. The unit
will stop its operation for 4 hour and then resume the operation when the
outdoor temperature rises above 7°F(-13.9°C).
• To inactivate this function, slide the SELECT switch(DSW1) #1 to OFF side.
DSW1
OFF
1
2
ON
SW1
DSW1
SW2
PUMP DOWN
SELECT
WIRE CHECK
LED1A
LED1B
LED1C
LED1D
OFF
1
2
ON
SELECT switch (DSW1)
13. Preheat
When heating is stopped, applying a small amount of voltage to the compressor to make heating start more quickly.
The preheat function will active according to outdoor temperature and compressor temperature.
To inactivate this function, slide the SELECT switch (DSW1) #2 to OFF side.
DSW1
OFF
1
2
ON
