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Filter, Final steps, Operation – COOK H-Series User Manual

Page 4: Inspection, Final installation steps, Rotating parts & electrical shock hazard

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4

c. Install the two perimeter angles (C), that were shipped

loose, inside each end of the hood.

d. If there is a gap between the top cap edges, loosen the

top cap bolts. Install a bolt in each end of the top cap
flange to pull the two top caps together. Tighten the top
cap bolts.

Filtered Fans

a. Place the two long filter retainers (E) --four on size 60--

and the two short filter retainers (F) on top of the base
and bolt the pieces together.

b. Bolt the long filter retainers (E) to the perimeter angles

(C) that are at the ends of each hood.

c. Install filters according to the filter schedule. Refer to Fil-

ter Installation Detail, below. Insert edge of filters into the
filter retainer (E), swing filter into position and flip the fil-
ter holding clip into position.

Final Installation Steps

a. Inspect fasteners and setscrews, particularly fan

mounting and bearing fasteners, and tighten according
to the recommended torque shown in the table, Rec-
ommended Torque for Setscrews/Bolts
.

b. Inspect for correct voltage with voltmeter.
c. Ensure all accessories are installed.

d. Test the fan to be sure the rotation is the same as indi-

cated by the arrow marked Rotation.

Do not allow the fan to run in the wrong direction.

This will overheat the motor and cause serious dam-
age. For 3-phase motors, if the fan is running in the
wrong direction, check the control switch. It is possible
to interchange two leads at this location so that the fan
is operating in the correct direction.

Operation

Pre-Start Checks

a. Lock out all the primary and secondary power sources.
b. Inspect fasteners and setscrews, particularly those

used for mounting the fan, and tighten if necessary.

c. Inspect belt tension and pulley alignment. (Remember,

if belt tension is correct, a loud squeal occurs as the fan
increases to full power.)

Unit

Type 1

Type 2

Size

Length x Width

No. Req’d

Length x Width

No. Req’d

20

14 x 14”

4

14 x 18-7/8”

6

24

18-1/4” x 30-1/8”

2

18-1/4” x 33-1/4”

4

30

20-7/16” x 18-1/16”

4

20-7/16” x 25-13/16”

6

36

22-1/4” x 21-1/16”

4

22-1/4” x 29-5/32

6

42

24-1/16” x 29-1/2”

4

26-7/8” x 19-1/4”

8

48

27” x 27”

4

27” x 27

8

54

29-1/8” x 20”

6

29-1/8” x 23-5/8”

10

60

37-11/16” x 21-7/8

6

26” x 28-5/16”

10

Filter

Schedule

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

T

ype 1

T

ype 1

T

ype 1

T

ype

1

T

ype 1

T

ype 1

d. Inspect motor wiring.

e. Ensure the belt touches only the pulleys.

f. Rotate the propeller to ensure it does not rub against

the venturi.

g. Ensure fan and ductwork are clean and free of debris.
h. Test the fan to ensure the rotation of the propeller is

the same as indicated by the rotation label (The HER
has a reversible propeller and can be operated in either
direction).

i. Close and secure all access doors.
j. Restore power to unit.

Start Up

Turn the fan on. In variable speed fans, set the fan to its

lowest speed. Inspect for the following:

• Direction of rotation.
• Excessive vibration.
• Unusual noise.
• Bearing noise.
• Improper belt alignment or tension (listen for a continu-

ous squealing noise).

• Improper motor amperage or voltage.
NOTICE! If a problem is discovered, immediately

shut off the fan. Lock out all electrical power and check
for the cause of the trouble. Refer to Troubleshooting
.

Inspection

Inspection of the fan should be conducted at the first 30

minute, 8 hour and 24 hour intervals of satisfactory opera-
tion. During the inspections, stop the fan and inspect as per
the chart below.

30 Minute Interval

Inspect bolts, setscrews, and motor mounting bolts.

Adjust and tighten as necessary.

8 Hour Interval
Inspect belt alignment and tension. Adjust and tighten as
necessary.

24 Hour Interval
Inspect belt tension. Adjust and tighten as necessary.

Recommended Torque for Setscrews/Bolts (IN/LB.)

Setscrews

Hold Down Bolts

Size

Key Hex

Across

Flats

Recommended Torque

Inch-lbs.

Min.

Max.

Size

Wrench Torque

(inch-lbs)

No.10

3/32”

28

33

3/8”-16

240

1/4”

1/8”

66

80

1/2”-13

600

5/16”

5/32”

126

156

5/8”-11

1200

3/8”

3/16”

228

275

3/4”-10

2100

7/16”

7/32”

348

384

7/8”-9

2040

1/2”

1/4”

504

600

1”-8

3000

5/8”

5/16”

1104

1200

1-1/8”-7

4200

3/4”

3/8”

1440

1800

1-1/4”-7

6000

Rotating Parts & Electrical Shock Hazard:

Disconnect power before checking and cleaning
filters.

Inadvertent operation of the fan could pull objects
from the roof into the propeller.

Failure to follow these instructions could result in
death or serious injury.