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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 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 specication

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.

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.

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 two sketches.

1-7/1

14-1/16

Fini

16-3/4

13-15/16

1-3/8

11-15/16

13-5/16

Bend up at 90

atte

(Inches)

alvanized

teel

Gemini 100

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.

Grounding is required. All eld-installed wiring

must be completed by qualied 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.

Summary of content (8 pages)

PAGE 1
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 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 specification data.
PAGE 2
Figure 1 Start Outlet Inlet Remove Parts Inline Cover Panel x2 Replace Parts Outlet 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.
PAGE 3
unit 3/8”. If filter and deluxe aluminum grille are both present, raise unit 7/8”, due to the 1/2” grate protrusion on the aluminum grille. If filter is not present: the grate on the aluminum grille will fit inside of the unit (except sizes 160 & 180). Other grilles have no protrusion and fit flush with the fan. 3. Fasten duct work to the outside of the duct collar (damper frame) using sheet metal screws and foil tape.
PAGE 4
Gemini 800 - 900 Series: White 1 PH / 60 HZ / 115 V LEESON 10.2 AMPS Line 1 Line P1 Black (High) P2 Blue (Medium) Red (Low) Insulate T3 T2 Line T4 P4 T5 Purple White Yellow Orange Brown Line 1 Line 2 Insulate Purple Yellow Brown Orange White White Red Blue Orange Line 2 Line 2 3 PH / 60 HZ / 460 V MARATHON 2.1 AMPS LEESON 1.7 AMPS T1 Insulate T2 Insulate Insulate T4 T7 Insulate 1 PH / 60 HZ / 208-230 V MAGNETEK 4.
PAGE 5
Operation Pre-Start Checks 1. 2. 3. 4. 5. 6. Lock out all the primary and secondary power sources. Inspect fasteners and setscrews, particularly those used for mounting the fan, and tighten if necessary. Inspect motor wiring. Ensure fan and ductwork are clean and free of debris. Test the fan to ensure the rotation of the wheel is the same as indicated by the rotation label. Restore power to unit. 1. Disconnect the motor from electrical supply 2.
PAGE 6
damper operation. Excessive Vibration and Noise 1. Damaged or unbalanced wheel. 2. Speed too high. 3. Incorrect direction of rotation. Make sure the fan rotates in same direction as the arrows on the motor or belt drive assembly. 4. Motor needs lubrication or replacement. 5. Fan surge. Overheated Motor 1. Motor improperly wired. 2. Incorrect direction of rotation. Make sure the fan rotates in same direction as the arrows on the motor or belt drive assembly. 3. Cooling air diverted or blocked. 4.
PAGE 7
Gemini 200 - 900 Parts List Gemini 100 Parts List Diagram Part Number Part Description Diagram Part Number Size 200 - 700 Size 800 - 900 1 Backdraft Damper Backdraft Dampers (2) 2 Damper Frame Damper Frame (2) 3 Mounting Bracket (2) Mounting Bracket (2) 4 Wheel Wheel (2) 5 Grille (Ceiling and Wall) Grille (Ceiling and Wall) 1 Inlet Box End Plate (Ceiling only) 2 Housing/Scroll 3 Field Wiring Compartment 4 Motor 5 Tinnerman Clip (Grill) X2 6 Mounting Bracket 7 Backdraft Damp
PAGE 8
Gemini 1000 - 2000 Parts List Diagram Part Number Limited Warranty Loren Cook Company warrants that your Loren Cook fan was manufactured free of defects in materials and workmanship, to the extent stated herein. For a period of one (1) year after date of shipment, we will replace any parts found to be defective without charge, except for shipping costs which will be paid by you.