Carrier 50TC*17 Series Service And Maintenance Instructions page 13

The Reheat1 and Reheat2 modes are available when the
unit is not in a heating mode and when the Low Ambient
Lockout Switch is closed.
When there is both cooling demand (thermostat Y1
demand) and dehumidification demand, circuit 1 will
operate in Subcooling (Reheat1) mode. See Fig. 17
Schematic for system refrigerant flow.
When there is only a single cooling demand, one or both
circuits will operate in Hot Gas (Reheat2) mode. The DSV
CONDENSER COIL
COMPRESSOR
CONDENSER COIL
OUTDOOR AIR
COMPRESSOR
= CLOSED VALVE
= OPEN VALVE
= 3-WAY VALVE
Fig. 17 − Subcooling Mode (Reheat 1) – Humidi−MiZerR System
RH2.x
VALVE
RH1.x
VALVE
OUTDOOR AIR
= CLOSED VALVE
= OPEN VALVE
= 3-WAY VALVE
Fig. 16 − Normal Cooling Mode – Humidi−MiZerR System
RH2.x
VALVE
RH1.x
VALVE
solenoid valve is open ahd eht CSV solenoid is closed.
See Fig. 18 schematic for system refrigerant flow.
Subcooler/Reheat Coil
The Subcooler/Reheat Coil is mounted across the leaving
face of the unit's evaporator coil. The coil is a one−row
design with two separate circuits.
N/A
HUMIDI-MIZER COIL
EVAPORATOR COIL
INDOOR AIR
HUMIDI-MIZER COIL
EVAPORATOR COIL
INDOOR AIR
13
TXV
VALVE
C07122A
TXV
VALVE
C07123A