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The device is able to drain some water
but does not reach the expected
performance.
1.
Air temperature and / or humidity drops
2.
Humidity Level on the controller require calibration
3.
The device has entered the defrost cycle working
state
4.
Air filter is too dirty or clogged.
5.
Low refrigerant charge, cause by possible leakages
6.
Air leaks, such as loose caps or leaking at supply /
return air ducting.
7.
The compressor is damaged
8.
The air duct is not installed properly, and the air
volume is insufficient
After installation, commissioning and
shutdown after a period of time, water
overflows from the machine.
1.
The machine is not equipped with proper drainage,
the water cannot be removed
2.
The drainage is not connected properly, or the piping
is illogical, and the water cannot be drained out
3.
Some of the drainage pipes are at higher level than
the machine drainage hole
4.
Leak in the drain pan
Fresh air damper not working
1.
Connection to damper not properly connected.
2.
Loose connection in ventilation control circuit
3.
Loose connection in damper power circuit.
4.
Defective fresh air damper.
Summary of Contents for DD Series
Page 8: ...Page 8 of 39 DD F Series...
Page 11: ...Page 11 of 39 3 8 Ducting Connection Diagram example...
Page 33: ...Page 33 of 39 7 2 Wiring Diagram...
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Page 39: ...Page 39 of 39...
