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,

and

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 )

ё'

°t034) ^

l"-5

—

FLOOR 1

LINE T'

1 i"

♦ 1-4%

‘•^Гб'

-Ig ODS

HOT GAS

CONN (028

034)

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

This manual is related to the following products:

50BJ