Bryant 541A Installation, Start-Up And Service Instructions Manual page 19

Split system heat pump units sizes 120,180 10 to 15 tons

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1. Hot gas from compressor flows through the reversing (4-way) valve

and is directed to the indoor coil header. At the header refrigerant is

directed to the indoor coil where it is condensed and subcooled and

then exits through the indoor coil check valve to the liquid line. (The

TXVs stop the refrigerant flow during the heating cycle.)

2. The refrigerant then feeds the outdoor coil by way of filter-drier, a dis-

tribution manifold, and then through capillary tubes on each circuit.

LEGEND

TXV — Thermostatic Expansion Valve

NOTES:

1. Check valves are designated "A" through "D."

2. Illustrations are typical and do not portray exact coil circuiting.

3. Check valve positions:

Fig. 17 — Typical Heat Pump Heating Operation Schematic

(541A120 Shown)

3. Each circuit evaporates the refrigerant and all the circuits are com-

bined in the outdoor header (with some of the circuits flowing

through the check valve "A").

4. The refrigerant then flows through the reversing (4-way) valve, accu-

mulator and back to the compressor.

open,

closed.

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