COOK Gemini 600, Gemini 200, Gemini 300, Gemini 500, Gemini 700 Installation, Operation And Maintenance Manual
...
®
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
This publication contains the installation, operation and
maintenance instructions for standard units of the Gemini:
Ceiling and Cabinet Fans.
Carefully read this publication and any
supplemental documents prior to any
installation or maintenance procedure.
Loren Cook catalog, Gemini, provides additional infor-
mation describing the equipment, fan performance, avail-
able accessories and specication data.
For additional safety information, refer to AMCA Publica-
tion 410-96, Safety Practices for Users and Installers of
Industrial and Commercial Fans.
All of the publications listed above can be obtained from:
• lorencook.com
• info@lorencook.com
• 417-869-6474 ext. 166
For information and instructions on special equipment,
contact Loren Cook Company at 417-869-6474.
GEMINI
Ceiling and Cabinet Fans
Rotating Parts & Electrical Shock Hazard:
Fans should be installed and serviced by qualied personnel only.
Disconnect electric power before working on unit (prior to
removal of guards or entry into access doors).
Follow proper lockout/tagout procedures to ensure the unit
cannot be energized while being installed or serviced.
A disconnect switch should be placed near the fan, so
power can be swiftly turned off in case of an emergency.
This will also allow maintenance personnel to have complete control of the power source.
Grounding is required. All eld-installed wiring must be
completed by qualied personnel. All eld installed wiring
must comply with National Electric Code (NFPA 70) and all
applicable local codes.
Gemini 100
Receiving and Inspection
Carefully inspect the fan and accessories for any
damage and shortage immediately upon receipt of fan.
• Turn the wheel by hand to ensure it turns freely and does
not bind.
• Inspect dampers (if included) for free operation of all
moving parts.
• Remove mounting brackets from packing insert & install
mounting brackets (Gemini 100 only).
• Remove shipping tape.
• Record on the Delivery Receipt any visible sign of
damage.
Fans and blowers create pressure at the discharge and
vacuum at the inlet. This may cause objects to get pulled
into the unit and objects to be propelled rapidly from the
discharge. The discharge should always be directed in a
safe direction and inlets should not be left unguarded. Any
object pulled into the inlet will become a projectile capable
of causing serious injury or death.
When air is allowed to move through a non-powered fan,
the impeller can rotate. This is referred to as windmilling.
This unexpected rotation of components can cause a hazardous condition. Impellers should be blocked in position
or air passages blocked to prevent draft prior to working
on fans.
Friction and power loss inside rotating components can
cause them to be a potential burn hazard. All components
should be approached with caution and/or allowed to cool
before contacting them for maintenance.
Under certain lighting conditions, rotating components
may appear stationary. Components should be veried to
be stationary in a safe manner, before they come into contact with personnel, tools or clothing.
Failure to follow these instructions could result in death or
serious injury.
Handling
Lift fan by grasping the outside housing (cabinet) or by
the blower mounting brace. Never lift by the shaft or motor.
1GEMINI IO&M B51111-002
Storage
6
s
atte
G
If the fan is stored for any length of time prior to
installation, store it in its original shipping crate and protect
it from dust, debris and the weather.
Installation
Motor Installation
All Gemini units are shipped with motors mounted at the
factory.
Gemini 100 Inline to Ceiling Conversion
The Gemini 100 series can be converted from inline
to ceiling by ordering the Inline to Ceiling Conversion Kit
from Loren Cook Company (Part Number 797180). The kit
includes all parts required, plus detail instructions on how
to convert the Gemini 100.
Gemini 100 Ceiling to Inline Conversion
The Gemini 100 series can be eld converted from
ceiling to inline by following these steps:
1. Remove and discard the inlet box end plate.
2. Install the inline cover panel with sheet metal screws
as shown on the following page. Ceiling to Inline
Conversion Kit can be ordered from Loren Cook
Company (Part Number 797181), or fabricate the
required part using the following two sketches.
a. Galvanized Steel
16-3/4
13-15/16
18
14-1/16
1-3/8
Direction of Discharge (200–900 Series)
Discharge direction can be converted from right angle to
straight line, without a kit, by swapping outer panel and the
inlet/grille: See Figure 1.
1. Remove the side panel, mounting brackets (2) and
grille (if present).
2. Place the side panel where the inlet/grille had been.
Place the mounting brackets on the edge where the
side panel had been. Holes are pre-punched for this
procedure.
3. Rotate unit so that the outlet is on top.
Figure 1
Start
Outlet
Inlet
Remove Parts
x2
Replace Parts
Outlet
Bend up at 90o
Flat P
Inline
Cover
Panel
12
Inlet
1. Use the mounting bracket slots to lower the unit
rn
11-15/16
(Inches)
13-5/16
Finished View
1-7/1
Fan Installation
housing by a distance equal to the ceiling thickness.
Refer to Figure 2.
2. Raise the unit, as needed to accommodate acces-
sories and options: With optional lter, raise unit 3/8”.
For both lter and deluxe aluminum grille options,
raise unit 7/8” to compensate for 1/2” grate protrusion of grille. If lter is not present: the grate on the
aluminum grille will t inside of the unit (except sizes
160 & 180). Other grilles have no protrusion and t
ush with the fan.
3. Fasten duct work to the outside of the duct collar
(damper frame) using sheet metal screws and foil
tape. Make sure sheet metal screws are placed
where they do not interfere with damper operation.
4. Fasten the housing to the bottom of the joists through
the holes provided in the mounting bracket.
For Ceiling Radiation Damper Installation
see separate document, “Gemini/CRD
Installation Supplement.”
2GEMINI IO&M B51111-002
Mounting
Filter (optional)
Ceiling
Grille
Roof
Power
cord
Seal around the
unit with caulk.
Typical Installation
r
Roof jack with damper
or roof cap
Exterior
Wall
Figure 2
6” round duct. Insulated duct will help
absorb vibration. Use the shortest runs
Joists
Insulation around unit.
Also, cover the fan with insulation.
Unit Housing
Grate Protrusion (aluminum grille only)
possible & long radius elbows.
or
Short (1’) piece of flexible duct
will absorb vibration & noise.
carrying capacity of wires) is in accordance with the motor
nameplate. Refer to Wiring Diagrams.
Joists
Bracket
source.
for single speed operation, using an FSC to vary speed if
required. Do not wire to more than two leads.
Use foil tape
on the joints
to ensure a
good seal.
Wall cap
with damper
Ensure the power supply (voltage, frequency and current
Lock out all power sources before unit is wired to power
Follow the wiring diagram in the disconnect
switch and the wiring diagram provided with the
motor. Correctly 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).
Note: Insulate Unused Leads. Fan plug box is designed
Notice! Do not install above or around
cooking equipment (shaded area)
O
45
Cooking
Equipment
Wiring Installation
All wiring should be in accordance with local ordinances
and the National Electrical Code, NFPA 70.
O
45
Floor
Wiring Diagrams
Gemini 100 Series:
Cap off wire that is not in use.
Red Wire (Low Speed)
Black Wire (High Speed)
Green Wire
(Ground by COOK)
White Wire
(Common)
For fan power supply connection use 4-wire cable
provided in eld wiring box shown on above diagram.
3GEMINI IO&M B51111-002
Ground Screw fo
Field Grounding
Loading...