Bryant 541A User Manual
Page 18
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
distribution manifold, and then through capillary tubes on each
circuit.
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,
accumulator and back to the compressor.
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:
open,
closed.
Fig. 17 — Typical Heat Pump Heating Operation Schematic
(541A120 Shown)
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