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10
Fig. 13 — TXV (Metering Device) Position in Reheat Coil (Typical Diagram for Sizes 04-06)
Refrigerant System Pressure Access Ports
There are two access ports in the system: one on the suction
tube near the compressor and one on the discharge tube near
the compressor. 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 re-
ceptacle 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 refrig-
erant oil to the check valve core’s bottom o-ring. Install the fit-
ting body with 96 ±10 in.-lb of torque; do not over-tighten.
Fig. 14 — CoreMax
1
Access Port Assembly
TXV
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
tor
qu
ed into the
s
e
a
t. Appropri
a
te h
a
ndling i
s
re
qu
ired to not
s
cr
a
tch or dent the
su
rf
a
ce.
S
EAT
CORE
(P
a
rt No. EC
3
9EZ067)
Summary of Contents for Puron R-410A
Page 29: ...29 Fig 44 RTU Open Overlay for Economizer Wiring ...
Page 30: ...30 Fig 45 VFD Overlay for W2770 Controller Wiring ...
Page 50: ...50 Fig 63 50KC Typical Unit Wiring Diagram Power 06A 208 230 3 60 ...
Page 51: ...51 Fig 64 50KC Unit Wiring Diagram Control A06 ...
Page 77: ...77 Fig C Unit Wiring Diagram Power for Sizes A04 and A06 208 230 1 60 ...
Page 78: ...78 Fig D Unit Wiring Diagram Power for Size A05 208 230 1 60 ...
Page 79: ...79 Fig E Unit Wiring Diagram Power for Sizes A04 A06 208 230 3 60 460 3 60 575 3 60 ...