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
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.
CONDENSER COIL
HUMIDI-MIZER COIL
EVAPORATOR COIL
COMPRESSOR
OUTDOOR AIR
INDOOR AIR
RH2.x
VALVE
RH1.x
VALVE
TXV
VALVE
= CLOSED VALVE
= OPEN VALVE
= 3-WAY VALVE
N/A
C07122A
Fig. 16
−
Normal Cooling Mode – Humidi
−
MiZer
R
System
CONDENSER COIL
HUMIDI-MIZER COIL
EVAPORATOR COIL
COMPRESSOR
OUTDOOR AIR
INDOOR AIR
RH2.x
VALVE
RH1.x
VALVE
TXV
VALVE
= CLOSED VALVE
= OPEN VALVE
= 3-WAY VALVE
C07123A
Fig. 17
−
Subcooling Mode (Reheat 1) – Humidi
−
MiZer
R
System
Summary of Contents for 50TC*17 Series
Page 39: ...39 C10818 Fig 44 RTU OPEN Control Module...
Page 69: ...69 APPENDIX IV WIRING DIAGRAMS C150370 Fig 58 50TC D30 Control Diagram 208 230 3 60...
Page 70: ...70 APPENDIX IV WIRING DIAGRAMS 5 C150368 Fig 59 50TC D30 Control Diagram 460 575 3 60...
Page 71: ...71 APPENDIX IV WIRING DIAGRAMS C150373 Fig 60 50TC D17 D30 Power Diagram 208 230 3 60...
Page 72: ...72 APPENDIX IV WIRING DIAGRAMS C12399 Fig 61 50TC D17 D30 Power Diagram 460 575 3 60...
Page 77: ...77 APPENDIX IV WIRING DIAGRAMS C12690 Fig 66 50TC PremierLinkt System Control Wiring Diagram...
Page 78: ...78 APPENDIX IV WIRING DIAGRAMS C12691 Fig 67 50TC RTU OPEN Wiring Diagram...
Page 79: ...79 APPENDIX IV WIRING DIAGRAMS C12689A Fig 68 50TC SAV VFD System Control Wiring Diagram...