Carrier 50JS Installation, Start-Up And Service Instructions Manual page 16

LEGEND
LCS – Loss of Charge Switch
Accurater
Arrow indicates direction of flow
1. Hot gas from compressor flows through the 4-way valve and is directed to the indoor coil. It is then condensed and subcooled through the coil circuits and then leaves
the indoor coil by way of the ID Accurater in the bypass position to the liquid line.
2. The refrigerant then feeds the outdoor coil through the OD Accurater device in the metering position and distributes to each circuit.
3. Each circuit evaporates the refrigerant and the circuits are combined in the outdoor coil header.
4. The refrigerant then flows through the 4-way valve, accumulator, and back to the compressor.
LEGEND
LCS – Loss of Charge Switch
Accurater
Arrow indicates direction of flow
1. Hot gas from compressor flows through the 4-way valve and is directed to the outdoor coil. It is then condensed and subcooled through the coil circuits. Refrigerant leaves
the outdoor coil by way of the OD Accurater in the bypass position to the liquid line.
2. The refrigerant then feeds the indoor coil through the ID Accurater device in the metering position and distributes to each circuit.
3. Each circuit evaporates the refrigerant and the circuits are combined in the indoor coil header.
4. The refrigerant then flows through the 4-way valve, accumulator, and back to the compressor.
OUTDOOR COIL
® Metering Device
Fig. 21—Typical Heat Pump Operation, Heating Mode
OUTDOOR COIL
® Metering Device
Fig. 22—Typical Heat Pump Operation, Cooling Mode
Bypass
Position
LCS
Metering
Position
Metering
Position
LCS
Bypass
Position
16
INDOOR COIL
C99027
INDOOR COIL
C99028