COOK Gemini 100 Series - Manual (Page 2)

2
Ceiling Radiation Damper Installation (See Gemini/CRD
Installation Supplement)
Wiring Installation
All wiring should be in accordance with local ordinances
and the National Electrical Code, NFPA 70. Ensure the
power supply (voltage, frequency, and current carrying
capacity of wires) is in accordance with the motor name-
plate. Refer to the Wiring Diagrams, on page 4.
Lock off all power sources before unit is wired to
power source.
Follow the wiring diagram in the disconnect switch
and the wiring diagram provided with the motor. Cor-
rectly label the circuit on the main power box and
always identify a closed switch to promote safety (i.e.,
red tape over a closed switch).
Personal Safety
Disconnect switches are recommended. Place the
disconnect switch near the fan in order that the
power can be swiftly cut off in case of an emer-
gency, and in order that maintenance personnel are
provided complete control of the power source.
Side
Panel
Mounting
Brackets
Intake
Side Discharge
Exhaust
Duct Collar
Note: Allow for ceiling thickness. Allow 5/8” for premium aluminum grille
Suggested Installation: Unit without filter.
Note: Allow for ceiling thickness
Suggested Installation: Unit with filter
Figure 1
Figure 2
Figure 3
SEE NOTE
Screw
Grille
Filter
Mounting
Bracket
Allow 3/8"
for filter
SEE NOTE
Mounting
Bracket
Grille
Screw
Final Installation Steps
a. Inspect fasteners and setscrews, particularly fan
mounting fasteners, and tighten according to the rec-
ommended torque shown in the table,
Recommended Torque for Setscrews/Bolts.
b. Inspect for correct amperage and voltage with an
ammeter and voltmeter.
c. Ensure blower is secured to duct work.
d. Ensure all accessories are installed.
e. Inspect wheel-to-inlet clearance. Make sure wheel
does not rub against the inlet.
f. Test the fan to be sure the rotation is the same as indi-
cated by the arrow marked Rotation.
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 motor wiring.
d. Ensure fan and ductwork are clean and free of debris.
e. Test the fan to ensure the rotation of the wheel is the
same as indicated by the rotation label.
f. Restore power to unit.
Start Up
Before attaching the grille, turn the fan on and inspect for
the following:
• Direction of rotation.
• Excessive vibration.
• Unusual noise.
• Motor noise.
• Improper motor amperage or voltage.
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, page 3.
Inspection
Inspection of the fan should be conducted at the first 30
minute interval of satisfactory operation. During the
inspection, stop the fan and inspect as per directions
below.
30 Minute Interval
Inspect bolts, setscrews, and motor mounting bolts.
Adjust and tighten as necessary.
Grille Installation
Attach grille by tightening the screws with a screwdriver.
When the unit is furnished with a filter, place the screws
through the hole in the grille. Install the filter through the
holes provided in the filter frame.
Maintenance
Establish a schedule for inspecting all parts of the fan.
The frequency of inspection depends on the operating con-
ditions and location of the fan.