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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
1
Accumulator
2
3
4
5
Electronic Expansion Valve
6
Refrigerant Filters
7
8
Outdoor Fan Motor
9
Power Factor Reactor
10
11
12
13
Module Control Board
14
Fan Blade
15
PAGE 8
Outdoor Unit Introduction
9
15
10
OUTDOOR UNIT CONTROLS & COMPONENTS
14
3
2
4
13
12
5
1
6
11
7
8
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