Cook QMX User Manual download pdf

Mixed Flow Inline

INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

QMX

This publication contains the installation, operation

and maintenance instructions for standard units of the

QMX-Mixed Flow Inline.

• QMX • QMXD-HP • QMX-HP • QMXE

• QMXS • QMXE-HP • QMXS-HP • QMXU

• QMXU-HP • QMXLE • QMXLE-HP

Carefully read this publication prior to any installa-

tion or maintenance procedure.

Loren Cook catalog, QMX, provides additional informa-

tion describing the equipment, fan performance, available

accessories, and specification 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

Loren Cook Company by phoning (417) 869-6474, exten-

sion 166; by FAX at (417) 832-9431; or by e-mail at

[email protected].

For information on special equipment, contact Loren

Cook Company Customer Service Department at (417)

869-6474.

Receiving and Inspection

Carefully inspect the fan and accessories for any dam-

age and shortage immediately upon receipt of the fan.

• Turn the wheel by hand to ensure it turns freely and

does not bind.

• Inspect inlet vane dampers (if supplied) for free opera-

tion of all moving parts.

• Record on the Delivery Receipt any visible sign of

damage.

Handling

Lift the fan by lifting lugs. Never lift by the shaft, motor, or

housing.

Storage

If the fan is stored for any length of time prior to installa-

tion, completely fill the bearings with grease or moisture-

inhibiting oil. Refer to Lubricants on page 6. Also, store the

fan in its original crate and protect it from dust, debris and

the weather.

• Cover the inlet and outlet, and belt tunnel opening to

prevent the accumulation of dirt and moisture in the

housing.

• Periodically rotate the wheel and operate inlet vane

dampers (if supplied) to keep a coating of grease on all

internal bearing parts.

WARNING

This unit has rotating parts. Safety precautions

should be exercised at all times during installation,

operation, and maintenance.

ALWAYS disconnect power prior to working on fan.

• Periodically inspect the unit to prevent damaging condi-

tions.

Installation

QMX and QMX-HP can be mounted horizontally or verti-

cally to a floor or a ceiling in various motor positions and

discharges. QMXU, QMXU-HP, QMXE, QMXE-HP, QMXS

and QMXS-HP are all designed to be roof mounted on typi-

cal roof curbs. The QMXLE or QMXLE-HP units, however,

should not be mounted on sheet metal roof curbs, but sup-

ported by integral members of the roof structure, designed

and constructed by others per local requirements and envi-

ronments.

Most motors are shipped mounted on the fans with belts

and drives installed. However, extremely heavy motors are

shipped separately, and some motors are shipped sepa-

rately due to height limitations. These motors and drives

will require field installation.

Isolation Installation

To help prevent vibration and noise from being transferred

to the building, isolators are recommended.

Floor Mounted Spring Isolators

a. Mount fan on isolation base or rails (if supplied).

b. Elevate fan (or isolation base) to operating height and

insert blocks to hold in position.

c. Position isolators under the fan and vertically align by

inserting leveling bolt through mounting holes in the

fan or the base. The isolator must be installed on a

level surface.

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

emergency, and in order that maintenance

personnel are provided complete control of the

power source.

NOTE

Although a certain amount of vibration is inherent

in operating fans, extreme vibration is a serious

problem that may cause structural and mechanical

failure.

QMX

1 2 3 4 5 6 ... 11 12

Summary of Contents

Page 1

®Mixed Flow InlineINSTALLATION, OPERATION, AND MAINTENANCE MANUALQMXThis publication contains the installation, operation and maintenance instructions

Page 2 - Duct and Damper Installation

10123456QMXE/QMXE-HP Parts ListQMXS/QMXS-HP Parts List123456789See common parts (not shown) listed on page 9.ITEMNUMBERITEMDESCRIPTION1 QMX Curb Cap2

Page 3 - Wiring Installation

11542136QMXU/QMXU-HP Parts ListQMXLE/QMXLE-HP Parts List1234567See common parts (not shown) listed on page 9.ITEMNUMBERITEMDESCRIPTION1 QMX Curb Cap2

Page 4

12QMX IOM - Oct 2012Corporate Offices: 2015 E. Dale Street Springfield, MO 65803 417.869.6474lorencook.comLimited WarrantyLoren Cook Company warrant

Page 5 - Figure 2

2CorrectIncorrectMIN3 DIAduct diameter of straight duct before placing an elbow or damper. Clearance is also required on the inlet and outlet for main

Page 6 - Motor Services

3Wheel-to-Inlet ClearanceThe correct wheel-to-inlet clearance is critical to proper fan performance. This clearance should be verified before initial

Page 7 - DETAIL A

4T-1T-4Ground BL2L1Ground ALine456172839L1L2L3456789123L1L2L3Low Voltage208/230 VoltsHigh Voltage460 Volts3 Phase, 9 Lead MotorY-Connection71678945612

Page 8 - Troubleshooting

5Typical Wiring Path for Roof Mounted UnitsFor sizes 135-600, route conduit under motor cover between the motor support rails and out to enclosure as

Page 9 - Direct Drive

6MaintenanceEstablish a schedule for inspecting all parts of the fan. The frequency of inspection depends on the operating con-ditions and location of

Page 10

7k. Slide shaft through bearings until shaft protrudes the same amount as measured above. Tapping the inner race of each bearing with a soft driver ma

Page 11 - QMXLE/QMXLE-HP Parts List

8TroubleshootingProblem and Potential CauseLow Capacity or Pressure•Incorrect direction of rotation. Make sure the fan rotates in same direction as th

Page 12 - Arrangement 3 Parts List

9151161417301819202112345678 9101112131412222324Vertical Mount4292510262728Horizontal MountDirect DriveQMX/QMXD-HP/QMX-HP Parts ListITEMNUMBERITEMDES

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