13
Fig. 19 — TXV Valve and Sensing Bulb Location
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 com-
pressor. These are brass fittings with black plastic caps. The
hose connection fittings are standard
1
/
4
-in. SAE male flare
couplings.
The brass fittings are two-piece high flow valves, with a recep-
tacle base brazed to the tubing and an integral spring-closed
check valve core screwed into the base. See Fig. 20. This check
valve is permanently assembled into this core body and cannot
be serviced separately; replace the entire core body if neces-
sary. Service tools are available from RCD that allow the re-
placement of the check valve core without having to recover
the entire system refrigerant charge. Apply compressor refrig-
erant oil to the check valve core’s bottom o-ring. Install the fit-
ting body with 96 ± 10 in.-lb (10.85 ± 1.1 Nm) of torque; do
not over-tighten.
Fig. 20 — CoreMax
1
Access Port Assembly
TXV SENSING
BULB
CLAMP
THERMAL EXPANSION
(TXV) VALVE
SENSING BULB INSULATION REMOVED FOR CLARITY
1. CoreMax is a registered trademark of Fastest, Inc.
5/
8
” HEX
0.47
3
0°
0.596
1/2-20 UNF RH
1/2
” HEX
45°
WA
S
HER
O-RING
7/16-20 UNF RH
DEPRE
SS
OR PER AHRI 720
+.01/-.0
3
5
FROM FACE OF BODY
Thi
s
su
rf
a
ce provide
s
a
met
a
l to met
a
l
s
e
a
l when
torq
u
ed into the
s
e
a
t. Appropri
a
te h
a
ndling i
s
req
u
ired to not
s
cr
a
tch or dent the
su
rf
a
ce.
S
EAT
CORE
(P
a
rt No. EC
3
9EZ067)
Содержание 50FC A04 Series
Страница 96: ...96 APPENDIX D WIRING DIAGRAMS Fig J 50FC 04 06 208 230 1 60 Unit with RTU Open Controller...
Страница 97: ...97 APPENDIX D WIRING DIAGRAMS Fig K 50FC 04 06 208 230 3 60 Unit with RTU Open Controller...
Страница 98: ...98 APPENDIX D WIRING DIAGRAMS Fig L 50FC 04 06 460 575 3 60 Unit with RTU Open Controller...
Страница 99: ...99 APPENDIX D WIRING DIAGRAMS Fig M 50FC 07 208 230 Unit with RTU Open Controller...
Страница 100: ...100 APPENDIX D WIRING DIAGRAMS Fig N 50FC 07 460 575 Unit with RTU Open Controller...
Страница 101: ...101 APPENDIX D WIRING DIAGRAMS Fig O 50FC 04 06 Power Wiring Diagram 208 230 1 60...
Страница 102: ...102 APPENDIX D WIRING DIAGRAMS Fig P 50FC 04 07 Power Wiring Diagram 208 230 3 60...
Страница 103: ...103 APPENDIX D WIRING DIAGRAMS Fig Q 50FC 04 07 Power Wiring Diagram 460 575 3 60...
Страница 104: ...104 APPENDIX D WIRING DIAGRAMS Fig R 50FC 04 06 SystemVu Control Wiring Diagram All Voltages...
Страница 105: ...105 APPENDIX D WIRING DIAGRAMS Fig S 50FC 07 SystemVu Control Wiring Diagram All Voltages...
Страница 106: ...106 APPENDIX D WIRING DIAGRAMS Fig T 50FC 04 06 SystemVu Power Wiring Diagram 208 230 1 60...
Страница 107: ...107 APPENDIX D WIRING DIAGRAMS Fig U 50FC 04 07 SystemVu Power Wiring Diagram 208 230 3 60...
Страница 108: ...108 APPENDIX D WIRING DIAGRAMS Fig V 50FC 04 07 SystemVu Power Wiring Diagram 460 575 3 60...