3
13.
If unit is to be left idle for an extended period (especially over summer months), it is recommended that belts be
removed and stored in a cool, dry place to avoid premature belt failure.
14.
The standard pillow block bearings on CARNES belt driven ventilators are permanently lubicated and are supplied
with an oil base corrosion preventive compound. These should not require any service, except that during the first
few months of operation it is recommended the set screws holding the shaft be checked to be sure they are
tight. (Proper tightness will permanently defor Allen wrench).
15.
The centrifugal wheel should not require maintenance except for removing foreign materials that may accumulate
on the blades. The balance weights should not be disturbed. If a wheel has to be removed from the shaft,
do not
apply force
that will damage the bearings or warp the wheel. Use a wheel puller.
16.
Access for wheel alignment purposes can be obtained by removing the motor lid and/or motor tube. Lateral
adjustment is made with the motor mount. Vertical adjustment is made at the bears.
17.
Should it be necessary to remove the wheel, access is through the fan plate. Do not remove the motor/motor
mount assembly. Carefully support the motor/motor mount assembly and remove all the fan plate fasteners.
Carefully remove the entire assembly from the unit base. To rebuild, assemble in reverse order.
DIMENSIONS LISTED IN INCHES
INSIDE
UNIT
CURB
ROOF
SIZE
CAP
OPENING
06
15-1/2
11
08
15-1/2
11
10
17-5/8
13
12
17-5/8
13
15
20-1/2
16
18
25
20-1/2
21
28-1/8
23-1/2
24
31-1/8
26-1/2
30
40-1/8
35-1/2
36
46-1/8
41-1/2
42
54-1/8
49-1/2
48
58-1/8
53-1/2
INSIDE
CURB
CAP
ROOF
OPENING
