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Bryant DURAPAC PLUS SERIES 542J User Manual

Page 32

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32

LEGEND

NOTE: Circuitry shown is for single system; 542J180 units have
2 individual and independent refrigeration systems that each
operate in an identical manner.

Refrigerant Flow Direction

Check Valve Flow Direction

X

Fixed Orifice

*See Table 15 for check valve operation

details.

CHECK VALVE*

COOLING

A
B
C
D
E

F

Closed
Open
Closed
Open
Closed
Open

Fig. 43 — Heat Pump Heating Cycle

Fig. 42 — Heat Pump Cooling Cycle

LEGEND

NOTE: Circuitry shown is for single system; 542J180 units have
2 individual and independent refrigeration systems that each
operate in an identical manner.

Refrigerant Flow Direction

Check Valve Flow Direction

X

Fixed Orifice

*See Table 15 for check valve operation

details.

CHECK VALVE*

COOLING

A
B
C
D
E

F

Open
Closed
Open
Closed
Open
Closed