9
DFT 2
DFT1
FILTER
DRIER
FILTER
DRIER
1A
2A
OUTDOOR COIL
INDOOR COIL
ACCUMULA
TOR
ACCUMULA
TOR
HPS1
STRAINER
HEATING LIQUID LINES
STRAINER
1C
2C
2D
1D
TXV 2
TXV1
COOLING LIQUID LINES
LPS/LOC
2B
1B
HPS2
COMPRES
S
OR
COMPRES
S
OR
COMP 2
COMP 1
ACCUTROL
C12383
Fig. 12 -- Typical Unit Piping Schematic with TXV Valves on the Indoor Coils
TO
EVAPORATOR
COIL
CIRCUITS
FROM
LIQUID
HEADER
C09229A
Fig. 13 -- Heat Pump — Flow as Evaporator Function
50TCQ--D17, --D24 Outdoor Coils Only —
Converging
circuit flow in the condenser--function operation is
accomplished with the check valve in the vapor header
and the liquid transfer header connected to the side ports
on all but one of the Accutrol tee nipples in each circuit.
During condenser--function operation, hot gas from the
compressor discharge enters the header until it reaches the
check valve which blocks further flow. The hot gas exits
the header through the tubes above the check valve and
enters these coil circuits. At the outlet of these
desuperheating and condensing circuits, the refrigerant
enters the Accutrol tees from the coil end. The refrigerant
exits the tee at the side port and enters the liquid transfer
header (see Fig. 14). The refrigerant moves through the
liquid transfer header and exits through the remaining
tubes, through the side ports on the Accutrol tees (see
Fig. 15) and back into the coil circuits where additional
condensing occurs. These circuits exit into the vapor
header behind the check valve and exit through the
remaining tube on the vapor header. In this last pass
through the coil, the refrigerant is subcooled. Subcooled
liquid exits at the last Accutrol tee (see Fig. 16) where the
side port is connected to the specific mode liquid line.
From
Condenser
Coil Circuits
To
Transfer
Header
C09230
Fig. 14 -- Heat Pump Accutrol — Flow as Condenser
Function/Exiting First Pass
Содержание 50TCQD17-D24
Страница 36: ...36 C10818 Fig 51 RTU OPEN Control Module 50TCQ ...
Страница 46: ...46 APPENDIX IV WIRING DIAGRAMS cont C150373 Fig 52 50TCQ D17 Power Wiring Diagram 208 230 3 60 ...
Страница 47: ...47 APPENDIX IV WIRING DIAGRAMS cont C12399 Fig 53 50TCQ D17 Power Wiring Diagram 460 3 60 575 3 60 ...
Страница 48: ...48 APPENDIX IV WIRING DIAGRAMS cont C12686 Fig 54 50TCQ D24 Power Wiring Diagram 208 230 3 60 ...
Страница 49: ...49 APPENDIX IV WIRING DIAGRAMS cont C12401 Fig 55 50TCQ D24 Power Wiring Diagram 460 3 60 575 3 60 ...
Страница 51: ...51 APPENDIX IV WIRING DIAGRAMS cont C160005 Fig 57 RTU OPEN Control Diagram ...
Страница 52: ...52 APPENDIX IV WIRING DIAGRAMS cont 50HE500891 F 50HE500751 J Fig 58 PremierLinktWiring Diagram ...