Step 11 — check compressor spring mounts, Step 12 — make condenser connections, Water and refrigerant connections – Carrier 50BK User Manual
Page 10: Step 14 — make electrical, Connections
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Weatherproof
external
ductwork,
joints
and
openings with flashing and mastic in accordance
with applicable codes.
Ducts passing thru an unconditioned space must
be insulated and covered with a vapor barrier.
Step 10 — Check Return Air Filters Unit
50BJ.BK (016-034 only)
Be sure that the filters are the correct size; refer to
Table 1.
Do not operate the unit without these
filters in place.
Step 11 — Check Compressor Spring Mounts
The compressors are held rigid in shipment by
bolts extending thru a washer, lockwasher and
compressor foot into a weld nut.
Loosen and remove each bolt (4 per compressor)
until compressor floats free on springs. Remove and
discard washer and lockwasher. Take bag provided
with compressor and remove grommet and new
washer. Install grommet and new washer. Replace
and tighten bolts so that there is slight pressure
on grommet. This will steady compressor and pre
vent start and stop rocking.
The compressors have reversible oil pumps that
operate in either direction; therefore the direction
of rotation need not be checked.
Step 12 — Make Condenser Connections
WATER-COOLED
(50BJ
unit)
—
Condensers
have water inlet and outlet connections as shown in
Fig. 12. Piping arrangements for city, waste or
recirculating water are shown in Fig. 13 thru 16.
Recirculating
systems
with
low-temperature
water returning to the condenser may require a
water regulating valve. Units used on waste or city
water must have a regulating valve on the inlet of
each condenser and will require field modification
for separate condenser piping. Refer to Fig. 13, 14,
15,
16
and
17
for
typical
applications
and
conversions.
2“FPT WATER
l" FPT
5OBJ0I6
50BJ028
7/8" ODM HOT
HOT GAS \
CONN 1
7"0DS
8 (028) f ^
I^ODS )
A
ё'
I
°t034) ^
l"-5
—
FLOOR 1
LINE T'
1 i"
♦ 1-4%
2
‘•^Гб'
-Ig ODS
HOT GAS
CONN (028
034)
8
LIQ LINE
C0NN.(028
034)
50BK0I6
50BK024
50BK028 a 034
3g IDS
WATER
RETURN
liEP.T CONDENSATE
DRAIN CONN.
2-|T , '
^ '/* 1-10,4
NOTE: RIGHT SIDE VIEW OF UNIT SHOWN
Fig. 12
I^FPT
CONDENSATE
DRAIN CONN.
^ '4|б|"®2
I ID LIQ
TUBE
(CKTI)
l|"l,D
HOT GAS
TUBE
(CKT I )
f I D HOT GAS
TUBE (CKT 2)
50BJ044,054,064
Water and Refrigerant Connections
50BK044,054,064
9