Bryant 524J Series Installation, Start-Up And Service Instructions Manual page 13

Packaged air-handling units with puron r-410a refrigerant 60 hz
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the TXV sensor bulb on a vertical portion of the suction line,
outside the unit. (See Fig. 8.)
NOTE: Be sure to remove the styrofoam shipping pad from the
TXV. Verify that it has been removed. (See Fig. 4.)
IMPORTANT: Never attach the sensor to the suction
manifold. Do NOT mount the sensor on a trapped portion of
the suction line.
USE HOLE
UNIT
NO.
a
524J*25A,28A,30A
1,2,3,4
524J*25H
3
,5,6,7
b
NOTE(S):
a. Access hole knockouts 1-4 are factory-supplied.
b. Must be enlarged from 1-1/8 in. (28.6mm) to 1-3/4 in. (44.5mm)
FIELD-FABRICATED HOLE DIAMETERS
in (mm)
NO. 5
NO. 6
1-1/8 (28.6)
1-1/8 (28.6) 1-3/4 (44.5)
Fig. 7 — Refrigerant Piping Access Holes
The 524J Series evaporator coils have a face-split design. En-
sure that lower circuit of coil is first on/last off when connected
to the condensing unit and/or system controls. (See Fig. 9.)
External TXV equalizer connections are provided and factory-
brazed into the coil suction manifolds.
If suction line must be horizontal, clamp bulb to suction line at
least 45 degrees above bottom, at approximately the 4 o'clock
or 8 o'clock position. (See Fig. 10.)
8
7
6
5
4
3
2
1
NO.7
NO.8
A
3.25 (82.6)
13
D
C
B
A
FIELD-FABRICATED HOLE POSITION
DIMENSIONS in (mm)
B
C
6.125 (155.6) 10.38 (263.7)
D

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