Loren Cook Gemini Installation, Operation And Maintenance Instructions
Gemini
Ceiling and cabinet fans
®
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
This publication contains the installation, operation and
maintenance procedures for standard units of the Gemini
- Ceiling and Cabinet Fans. Carefully read this publication
prior to installation.
Carefully read this publication and any
supplemental documents prior to any
installation or maintenance procedure.
Loren Cook Company’s Gemini catalog provides
additional information describing the equipment, fan
performance, available accessories and specication
data.
For additional safety information, refer to AMCA
publication 410-96, Safety Practices for Users and
Installers of Industrial and Commercial Fans.
All of the publications listed above can be obtained
from Loren Cook Company by phoning (417) 869-6474,
extension 166; by FAX at (417) 832-9431; or by e-mail at
info@lorencook.com.
For information and instructions on special equipment,
contact Loren Cook Company at (417) 869-6474.
Rotating Parts & Electrical Shock Hazard:
Disconnect electric power before working on unit.
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
in order that the power can be swiftly cut off, in case
of an emergency and in order that maintenance
personnel are provided complete control of the
power source.
Handling
Lift fan by the outside housing (box) or by the blower
mounting brace. Never lift by the shaft or motor.
Storage
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 sketch.
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.
Failure to follow these instructions could result in
death or serious injury.
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.
Gemini 100
1
Exhaust
Duct Collar
Side
Panel
Intake
Outlet
Box
Mounting
Brackets
SEE NOTE
Mounting
Bracket
Grille
Screw
Figure 1
s
atte
Inline
Cover
Panel
18 Ga. Galvanized Steel
14-1/16
11-15/16
1-7/16
Formed View
16-3/4
13-15/16
Break up at 90
Flat P
rn View
1-3/8
11-15/16
13-5/16
Direction of Discharge (200-900 Series)
The duct collar (damper frame), for fastening a
standard duct, is located so discharge will be from the
top, as shown in gure 1. When discharge from the side
is desired, follow these steps:
1. Remove the side panel and install with the duct
collar in the side position, as shown in gure 2.
2. Move the mounting bracket from the top discharge
to the side discharge position for securing the
housing to the joists.
See in gure 2.
Fan Installation
1. Adjust housing, using the adjust mounting bracket
provided, to allow for the thickness nished ceiling
and grille. Refer to gure 3. If a unit is furnished
with lters allow 3/8” for lters. Refer to gure 4.
2. Fasten duct work to the outside of the duct collar
(damper frame) using sheet metal screws. Make
sure sheet metal screws are placed where they do
not interfere with damper operation.
3. Fasten the housing to the bottom of the joists
through the holes provided in the mounting bracket.
Refer to gures 1 and 2.
For Ceiling Radiation Damper Installation see
separate document “Gemini/CRD Installation
Supplement.”
Figure 2
Side
Panel
Mounting
Brackets
Intake
Duct Collar
Exhaust
Side Discharge
Figure 3. Note: Allow for ceiling thickness.
Suggested Installation: Unit without lter.
Figure 4 Note: Allow for ceiling thickness.
Suggested Installation: Unit with lter.
Mounting
SEE NOTE
Allow 3/8"
for filter
Screw
Bracket
Optional
Filter
Grille
2
White
(Common)
Wire
Red
(Low Speed)
Wire
White
(Common)
Wire
Black
(High Speed)
Wire
Plug
options
Notice! Do not install above or inside
shaded area
Gemini 200 - 300 and 600 - 700 Series:
White Line
45
Cooking
Equipment
45
Floor
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 nameplate. Refer to Wiring Diagrams.
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. 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
for single speed operation, using an FSC to vary speed if
required. Do not wire to more than two leads.
Black (High)
Red (Low)
Line
Electrical Shock & Fire Hazard:
Insulate Unused Lead
Failure to follow these instructions could result in
death or serious injury.
Gemini 400 - 500 Series:
White Line
Black Line
Gemini 800 - 900 Series:
White Line
Black (High)
Blue (Medium)
Red (Low)
Line
Wiring Diagrams
Gemini 100 Series:
Snap either the red wire, low-speed plug or the black
wire, high-speed plug into the eld wiring compartment
as shown. Low speed: Connect red and white wires to
line. Red wire, low-speed plug is for Model 122, 142, 162
and 182. High speed: Connect black and white wires to
line. Black wire, high-speed plug is for Model 124, 144,
164 and 184.
Electrical Shock & Fire Hazard:
Insulate Unused Leads Separately
Failure to follow these instructions could result in
death or serious injury.
Gemini 1000:
1 PH / 60 HZ / 115V
MARATHON 6.0 AMPS
Purple
White
Yellow
Orange
Brown
1 PH / 60 HZ / 115V
MAGNETEK 8.0 AMPS
Black
White
Red
Blue
Orange
Line 1
Line 2
Insulate
Line 1
Line 2
Insulate
Gemini 1000 is continued on the next page.
1 PH / 60 HZ / 208-230 V
MARATHON 2.8-3.0 AMPS
Purple
Yellow
Brown
Orange
White
1 PH / 60 HZ / 208-230 V
MAGNETEK 4.1 AMPS
Purple
Yellow
Blue
Orange
White
Line 1
Line 2
Insulate
Insulate
Insulate
Line 2
Line 1
3
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