Haier AW07EH2VHA, Руководство по обслуживанию

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SLIM DUCT TECHNICAL OVERVIEW
F-3
ENGLISH
Components
Accessory Louver Motors (not shown)
Separate motors located in the accessory supply air louver
control the operation of the motorized louvers. The louver
motors are stepper type motors that move the louvers up/
down. The motors are controlled by pulsed voltage that cannot
be measured. If the louver does not move when it should, check
for a bind in the louvers.
All of the louver motors are controlled via commands received
from the remote control.
8
7 Condensate Pump
The pump is energized whenever the Float Switch indicates that water needs to be pumped from the cassette. The float
switch connects onto the circuit board.
Gravity Drain Ports
supplied condensate pump that is capable of high lift.
Indoor Unit Circuit Board
The indoor unit circuit board controls the switching functions of the indoor unit. All control decisions are made by the outdoor
unit ECU. The indoor board has some limited diagnostic capability which will be covered in this manual.
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L Terminal
N Terminal
Communication Terminal
5A 250V Fuse
CN13 Sensors
CN18 Float Switch
CN1 Wired Remote
DIP Switches
CN14 Stepper Motor
CN15 Stepper Motor
CN6 Fan Motor
CN9 Condensate Pump
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1. If in COOL or DRY mode: Compressor running (Thermal ON), then condensate pump is energized
•When compressor stops (Thermal OFF), condensate pump runs for an additional 5 minutes
2. If in COOL or DRY modes and compressor is running (Thermal ON) and the float switch opens for 5 minutes
•Compressor will stop, the pump will continue to run
•If the float switch does not close, error code will display and pump continues to run
•If the float switch does close, the pump will continue to run for 5 additional minutes
3. During standby (Thermal OFF) in COOL/DRY modes or in HEAT and FAN modes and float switch opens for 2 seconds,
the condensate pump is energized.
•If the float switch closes, the pump will run an additional 5 minutes
•If the float does not close, the pump continues to run and error code is displayed