OUTDOOR UNIT CONTROLS & COMPONENTS
PAGE 8
ENGLISH
Outdoor Unit Introduction
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The outdoor condensing unit models are heat pump systems. The outdoor unit has two circuit boards, a Module Board that
drives the compressor and a Main Control Board that manages system functions and inverter calculations. Temperature
sensors monitor key temperatures throughout the system to manage operational decisions.
4-Way Valve
Accumulator
Compressor
Defrost Temperature Sensor
Discharge Temperature Sensor
Electronic Expansion Valve
Refrigerant Filters
Outdoor Ambient Temperature Sensor
Outdoor Fan Motor
Power Factor Reactor
Suction Line Temperature Sensor
Terminal Block
Main Control Board
Module Control Board
Fan Blade
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