19
use a tubing cutter to remove the mechanical flare nut
from the equalizer. Then use a coupling to braze the
equalizer line to the stub (previous equalizer line) in
the suction line.
10. Attach TXV bulb in the same location as the original
(in the sensing bulb indent), wrap the bulb in protect-
ive insulation and secure using the supplied bulb
clamp. See Fig. 22.
DIRECTION OF
REFRIGERANT FLOW
EQUALIZER TUBE
FROM TXV VALVE
CAPILLARY TUBE
TO TXV
15.9 mm
(REF)
TXV SENSOR BULB
SENSOR BULB
INDENT
SENSOR BULB
INSULATION
C12556
Fig. 22 -- TXV Sensor Valve Insulation
11. Route equalizer tube through suction connection
opening (large hole) in fitting panel and install fitting
panel in place.
12. Sweat the inlet of TXV marked “IN” to the liquid
line. Avoid excessive heat which could damage the
TXV valve.
13. Check for leaks.
14. Evacuate system completely and then recharge.
15. Remove lockout/tagout on main power switch and
restore power to unit.
16. Complete charging procedure.
Refrigerant System Pressure Access Ports
There are two access ports in the system -- on the suction
tube near the compressor and on the discharge tube near
the compressor. These are brass fittings with black plastic
caps. The hose connection fittings are standard 1/4 SAE
male flare couplings.
The brass fittings are two--piece High Flow valves, with a
receptacle base brazed to the tubing and an integral
spring--closed check valve core screwed into the base. See
Fig. 14. This check valve is permanently assembled into
this core body and cannot be serviced separately; replace
the entire core body if necessary. Service tools are
available from RCD that allow the replacement of the
check valve core without having to recover the entire
system refrigerant charge. Apply compressor refrigerant
oil to the check valve core’s bottom o--ring. Install the
fitting body with 96
10 in--lbs of torque; do not
overtighten.
TXV SENSOR
BULB
CLAMP
CIRCUIT 1
CIRCUIT 2
TXV
(CIRCUIT 2)
TXV
(CIRCUIT 1)
TXV SENSOR
BULBS
TXV
SENSOR
BULBS
C12557
Fig. 23 -- TXV Sensor Bulb Locations
48H
C
Содержание 48HC D17 Series
Страница 76: ...76 APPENDIX IV WIRING DIAGRAMS C12615 Fig 76 48HC D17 D28 Control Diagram 208 230 3060 460 575 3 60 48HC...
Страница 77: ...77 APPENDIX IV WIRING DIAGRAMS C12616 Fig 77 48HC D17 D28 Power Diagram 208 230 3 60 48HC...
Страница 78: ...78 APPENDIX IV WIRING DIAGRAMS C12617 Fig 78 48HC D17 D28 Power Diagram 460 3 60 48HC...
Страница 79: ...79 APPENDIX IV WIRING DIAGRAMS C12618 Fig 79 48HC D17 D28 Power Diagram 575 3 60 48HC...
Страница 80: ...80 APPENDIX IV WIRING DIAGRAMS C14061 Fig 80 48HC D17 D28 Control Diagram with Humidi MiZer 48HC...
Страница 81: ...81 APPENDIX IV WIRING DIAGRAMS C12620 Fig 81 48HC D17 D28 Power Diagram 208 230 3 60 with Humidi MiZer 48HC...
Страница 82: ...82 APPENDIX IV WIRING DIAGRAMS C12621 Fig 82 48HC D17 D28 Power Diagram 460 3 60 with Humidi MiZer 48HC...
Страница 83: ...83 APPENDIX IV WIRING DIAGRAMS C12622 Fig 83 48HC D17 D28 Power Diagram 575 3 60 with Humidi MiZer 48HC...
Страница 85: ...85 APPENDIX IV WIRING DIAGRAMS C13766 Fig 85 PremierLinkt System Control Wiring Diagram with Humidi MiZer 48HC...
Страница 86: ...86 APPENDIX IV WIRING DIAGRAMS C13767 Fig 86 RTU OPEN Wiring Diagram 48HC...
Страница 87: ...87 APPENDIX IV WIRING DIAGRAMS C13768 Fig 87 RTU OPEN Wiring Diagram with Humidi MiZer 48HC...
