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Fan Isolator Adjustment — Remove shipping hard-
ware from both the supply fan and the optional exhaust fan.
The indoor fan shipping blocks on both the supply fan and
the optional power exhaust fan (4 per fan) must be removed
from each corner of the fan sled before starting unit. Re-
move shipping bolt connecting bottom flanges of the fan sled
crossrail with the fan support rail. Remove the wooden ship-
ping block from each corner. See Fig. 39.
After removing all shipping blocks, level fan sled using
the adjusting screws of the spring isolators. Verify dimen-
sions from fan support rail to fan sled cross rail of 7-in. on
all 4 corners.
To adjust, loosen the locknut on top of the adjusting bolt.
Turn the bolt clockwise to decrease the height. Turn the bolt
counterclockwise to increase the height. Tighten the locknut
after adjustment is complete. Make sure that the fan sled
assemblies float freely during and after adjustment.
Check Compressor Mounting
UNITS 48/50MP62L — Compressors are mounted on pans
and are held down by 4 rail bolts during shipment. After unit
is installed, loosen each of these bolts until the snubber washer
can be moved with finger pressure. See Fig. 40 and 41.
UNITS 48/50MP70M-10R — Compressors are mounted on
rails and held down by rail bolts during shipment. After unit
is installed, loosen the rail bolts to allow the rails and com-
pressors to float freely on the springs located under the rails.
See Fig. 40, 42, and 43.
Install Accessories — For applications requiring
special accessories, the following packages are available: con-
denser coil hail guard package, condenser coil protective
grilles, and compressor security grilles. Refer to the acces-
sory installation instructions for information on accessory
installation.
PUSH
BAFFLE
DOWN SO
THESE 2
HOLES
ALIGN
FLUE DEFLECTOR
BAFFLE
FLUE
DEFLECTOR
HOOD
TOP (WHEN INSTALLED)
Fig. 38 — Flue Deflector Baffle (Assembled)
MOUNTING SPRINGS
SHIPMENT BOLTS
SHIPMENT BOLTS
48/50MP62L
MOUNTING
BOLTS RAIL BOLT (3) (2 SHOWN)
RAIL BOLT (3) (2 SHOWN)
MOUNTING
BOLTS
48/50MP70M-10R
Fig. 40 — Outer View, Compressor Mounting
7"
ISOLATOR SPRING METAL SHIPPING
BLOCK
SHIPPING
BOLT
FAN SUPPORT
RAIL
ADJUSTING BOLTFAN SLED
CROSS RAIL
VIEW FROM INSIDE UNIT LOOKING OUT
Fig. 39 — Fan isolator Adjustment
27