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6 Test Running
6.1 Trial Operation and Testing
Turn on the crankcase heater 12 hours before the startup of the whole system.
Indoor Unit:
LED Board Display as shown in
① . Indication LED of "POWER"
② . Indication LED of "COOL"
③ . Indication LED of "HEAT"
④ . Display of temperature or malfunction code.
When a malfunction happens except that the FAN mode continues at the mode of COOL,
DRY, HEAT, the outdoor unit and fan motor will stop, which will not affect the LCD display. When
the controller displays a malfunction, please turn off the unit and contact the service center. The
meaning of error codes as shown Table.11:
Error code
E2
E6
E9
F0
F1
Outdoor Unit: When a malfunction happens during the operation, the state(Off, On, Flashing) of
two LEDs on the control board(D1[Red] and D2 [Red]) indicate diagnostics conditions that are
described in Table.12.
Fig.34 and
Table.10.
Fig.34
Table.10
The LED will go on when the unit is power on.
The LED will go off when the unit is power off.
The LED is on under "COOL" mode operating.
The LED is off when "COOL" mode is not operating.
The LED is on under "HEAT" mode operating.
The LED is off when "HEAT" mode is not operating.
Table.11
Error code description
Indoor anti-freezing protection
Communication malfunction
Water overflow protection
Indoor unit ambient sensor malfunction at air return opening
Evaporator sensor malfunction
23
Floor Ceiling Air-Conditioning Unit
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