13
Operating Sequences
The Humidi
−−
MiZer
system provides three sub
−
modes
of operation: Normal Cooling (see Fig. 17), Subcooling
Reheat1 (see Fig. 18) and Hot Gas Reheat2 (see Fig. 19).
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 only a single cooling demand (thermostat
Y1 alone or with thermostat Y2), one or both circuits will
operate in Reheat2 mode. Both solenoids are energized in
both circuits. See Fig. 18, Hot Gas Reheat Schematic for
system refrigerant flow.
When there is both cooling demand (thermostat Y1
demand) and dehumidification demand, circuit 1 will
operate in Reheat1 mode (Subcooling, Fig. 17) and circuit
will operated in Reheat2 mode (Reheat, Fig. 18). In
Reheat1 mode, the 3
−−
way solenoid valve is energized,
opening the reheat coil to the refrigeration flow path
providing sub
−−
cooling to the liquid before it enters the
TXV.
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. 17
−
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. 18
−
Subcooling Mode (Reheat 1) – Humidi
−
MiZer
R
System
Содержание 48TC 17 Series
Страница 39: ...39 C10818 Fig 45 RTU OPEN Control Module ...
Страница 82: ...82 APPENDIX IV WIRING DIAGRAMS cont C12615 Fig 73 48TC D17 D28 Control Diagram 208 230 3 60 460 575 3 60 ...
Страница 83: ...83 APPENDIX IV WIRING DIAGRAMS cont C12616 Fig 74 48TC D17 D28 Power Diagram 208 230 3 60 ...
Страница 84: ...84 APPENDIX IV WIRING DIAGRAMS cont C12266 Fig 75 48TC D17 D28 Power Diagram 460 3 60 ...
Страница 85: ...85 APPENDIX IV WIRING DIAGRAMS cont C12618 Fig 76 48TC D17 D28 Power Diagram 575 3 60 ...
Страница 86: ...86 APPENDIX IV WIRING DIAGRAMS cont C14061 Fig 77 48TC D17 D28 Control Diagram with Humidi MiZer ...
Страница 87: ...87 APPENDIX IV WIRING DIAGRAMS cont C12620 Fig 78 48TC D17 D28 Power Diagram 208 230 3 60 with Humidi MiZer ...
Страница 88: ...88 APPENDIX IV WIRING DIAGRAMS cont C12621 Fig 79 48TC D17 D28 Power Diagram 460 3 60 with Humidi MiZer ...
Страница 89: ...89 APPENDIX IV WIRING DIAGRAMS cont C12622 Fig 80 48TC D17 D28 Power Diagram 575 3 60 with Humidi MiZer ...
Страница 91: ...91 APPENDIX IV WIRING DIAGRAMS cont C13766 Fig 82 PremierLinkt System Control Wiring Diagram with Humidi MiZer ...
Страница 92: ...92 APPENDIX IV WIRING DIAGRAMS cont C13767 Fig 83 RTU OPEN Wiring Diagram ...
Страница 93: ...93 APPENDIX IV WIRING DIAGRAMS cont C13768 Fig 84 RTU OPEN Wiring Diagram with Humidi MiZer ...
