Carrier 50BK - Manual (Page 7)

FAN MOTOR POSITION
VERTICAL DISCH
TOP MOUNTED
AIRFLOW
FRONT
■ FILTER RACK
NOTE.
Motor pulley on left side of unit — vertical discharge
Motor pulley on right side of unit — horizontal discharge
Fig. 3 — Fan and Motor Arrangements
50BJ.BK028.034
Fig. 4 — 50BJ,BK028 and 034 Horizontal
Fan Motor Mounting Angles
Fig. 6 — Assembled Fan Motor
Adjusting Screw
5. Adjust motor position. Fasten motor mounting
plate to mounting angles.
Step 7 — Route Fan Motor Wire (Unit 50BJ,BK
028 and 034 only)
Fan motor must be field wired. Proper wire rout­
ing is essential to the operation of these units.
Follow wire routing instructions carefully.
Fig. 5 — 50BJ,BK028 and 034 Motor
Mounting
CAUTION: Ttira t^ïricaï power to base
before cot-ttiag mriog to few matm.
CHECK EQUIPMENT — Refer to Fig. 7 and 8 for
location of base unit components. Fan motor wiring
is shipped coiled on top of evaporator coil. Wire tie
locations are shown in Fig. 7, 8 and 9.
ROUTE WIRING
CAUTiON: with aafScaeiit
to pertmi motor a<3|ssii»esi£. not
be pfecbed^ toecli zm moviiig parts or sharp
odgra.
VERTICAL DISCHARGE (Fig. 2. Position #1)
Run wiring thru wire tie# 1 (Fig. 9) on motor mount­
ing bracket to the fan motor and secure. Route
wiring from wire tie around motor side of mounting
bracket to fan motor connection box on top of
motor (Fig. 5). Cut off and discard excess wire.
Refer to base unit label diagram for wiring connec­
tion details.
HORIZONTAL DISCHARGE (Fig. 2, Position
#2) — Run wiring thru wire ties #2 and 3 (Fig. 9) to
the fan motor and secure. Run wiring to connection
box at back of motor (Fig. 5). Cut off and discard
excess wire. Refer to unit label diagram for wiring
connection details.
Step 8 — Align Fan Shaft and Wheel
HORIZONTAL WHEEL CENTERING — All
wheels must be horizontally centered between the
inside edges of their fan scroll venturis (Fig. 10).