Unit Start Up - Johnson Controls York Stack Fan Operating Manual

Stack fan
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Unit Start Up

When the unit is removed from storage, all grease should be purged and
replenished with fresh grease.
The following check list is recommended to ensure proper operation:
Motor Bolt Torque
Washers
Bolt Size
NEMA Frame
(Grade 5)
(Top and
Bottom)
56-145T
5/16
182-215T
3/8
254U-286TS
1/2
324T-365T
9/16
Recommended
Size
Torque
(ft-lb)
5/16
18
3/8
31
1/2
75
9/16
107
A
Hub
B
Bushing
C
Bushing Screws
D
Bushing Set Screw
C
Bushing Fastener Torque
Bushing Type
Screw Size
JA
10-24
SD/SDS
1/4-20
SK
5/16-18
SF
3/8-16
D
Bushing Set Screw
Bushing Type
Screw Size
SD/SDS
1/4-20
SK
5/16-18
SF
3/8-16
C
B
YORK
®
STACK FAN
Recommended Torque
60 in-lbs.
108 in-lbs.
180 in-lbs.
360 in-lbs.
Recommended Torque
60 in-lbs.
110 in-lbs.
110 in-lbs.
A
D
5

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