Carrier 50BK - Manual (Page 2)

Sizes 50BJ,BK016 and unite are shipped
with all components assembled, piped and wired.
Sizes 50BJ,BK028 and 034 are shipped as follows:
1. Base unit — containing evaporator coil unit,
compressors and condensers (50BJ unit only).
2. Fan section.
3. Fan motor and drive.
Sizes 50BJ,BK044,054 and 064 are shipped with
all components assembled, piped and wired.
Step 1 — Receive and Inspect Unit
Check unit against shipping order. Inspect care­
fully for concealed shipping damage. If shipment is
damaged or incomplete, file claim with transporta­
tion company and advise Carrier Corporation
immediately.
Step 2 — Protect Unit From Damage
To maintain warranty, protect unit against ad­
verse weather, theft or vandalism on jobsite.
Step 3 — Provide Unit Support
Refer to Fig. 1 — Unit Dimensions, and Table 1 —
Unit Physical Data for unit size and weight. Floor
unit loading should be adequate to support unit.
Step 4 — Rig and Place Unit With Accessories
Collect all unit parts together and move them to
actual installation site. Provide space around unit
for service, filter access and overhead clearance as
indicated in Fig. 1.
Move and store unit in upright position. Do not
remove shipping package or skids until unit is at
final position. Follow rigging label instructions
to prevent cabinet damage during unit positioning.
DO NOT USE CHAINS. Raise base skid on blocks
and remove bolts. Unbolt fan section from skid
(028 and 034 units only).
If any 39E accessories (eg. filters) are to be used
on 50BJ,BK044-064 units, refer to latest 39E
Installation Instructions. The 50BJ,BK044-064
units do not contain installed filters or racks. Bolts
to secure filter rack are shipped secured to base unit
compressor basepan.
Units as shipped are adequately dampened
against vibration. If additional dampening is de­
sired, place sponge rubber, rubber mat or fiberglass
roof insulation between floor and base of unit or
install vibration isolators.
Step 5 — Position Fan Section As Desired
UNIT SIZES 50BJ,BK0I6 and 024 are shipped for
vertical discharge. To set up these units for top-
mounted
horizontal discharge, accessory filler
panels must be field installed (see Fig. 1).
To set up unit sizes 50BJ,BK016 and 024 for
back-mounted horizontal discharge (Fig. 1), pro­
ceed as follows:
1. Remove:
a. rear fan-section panel.
b. upper rear coil-section panel.
c. flexible conduit and wires from motor.
d. corner bolts holding fan section to coil section.
2. Remove fan section and rotate it 180° lengthwise
so that motor is on left side of unit.
3. Place fan section on rear of coil section and
refasten.
4. Replace motor wire and conduit.
5. Adjust the following items per Installation Step 8:
a. Shaft alignment.
b. Fan wheel position.
c. Pulleys.
d. Fan belt.
6. Replace panels as follows:
a. Upper rear coil-section panel on top of coil
section and fasten.
b. Rear fan-section panel on top of fan section
and fasten.
UNIT SIZES 50BJ,BK028 AND 034 are shipped in
sections as noted previously. They can be field
assembled for either vertical or horizontal discharge.
NOTE: Fan section panels may be removed for
easier lifting and to facilitate motor installation.
To set up sizes 50BJ,BK028 and 034 units for
horizontal discharge (Fig. 2), proceed as follows:
1. Remove:
a. Upper rear and end panels of coil section.
b. End panels on fan section.
c. Fasteners holding lower rear edge of fan panel.
2. Eift and position fan section on rear of coil
section (Fig. 2). Secure with fasteners provided.
3. Install the following per Installation Step 6:
a. Motor mounting frame angles.
b. Motor on plate assembly.
e. Motor-plate assembly on frame angles.
d. Balance of drive package components.
4. Adjust the following per Installation Step 8:
a. Shaft alignment.
b. Fan wheel position.
c. Pulleys.
d. Fan belts.
5. Replace panels as follows:
a. Rear coil section panel on top of coil section.
Rear holes will overlap fan section top panel.
Fasten using hole vacated in step Ic (see
Fig. 2).
b. All end panels.