Haier AW09EH2VHD Service Manual page 8

The outdoor unit has two circuit boards,
board (PCB) that manages system functions and inverter calculations.
Sensors monitor key temperatures throughout the system to manage operational decisions.
4-Way Valve
1
Accumulator
2
Compressor
3
Defrost Temperature Sensor
4
Discharge Temperature Sensor
5
Electronic Expansion Valve
6
Refrigerant Strainers
7
Ambient Temperature Sensor
8
Fan Motor
9
Power Factor Reactor
10
Suction Line Temperature Sensor
11
Terminal Block
12
Main Control Board (PCB)
13
Module Control Board (IPM)
14
Fan Blade
15
PAGE 8
Outdoor Unit Introduction
an Inverter Power Module (IPM) that
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15
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1
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OUTDOOR UNIT CONTROLS and COMPONENTS
drives the compressor and main control
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