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OPERATION & MAINTENACE
Job Name:
Location:
Architect:
Engineer:
Contractor:
Date: APRIL 20, 2016
Submitted By: RUSTY REED
A Certified Minority Owned Small Business Enterprise
MANUAL
FANS
MICKEY LELAND CPAYM
HOUSTON, TEXAS
HARRISON KORNBERG
SHAH SMITH & ASSOCIATES
ENVIROTECH MECHANICAL
P. O. Box 630409, Houston, TX 77263-0409
Phone: (713) 266-1761 Fax: (713) 781-6532
www.distribaire.com
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Summary of Contents for Loren Cook QMXD-HP
- Page 1 OPERATION & MAINTENACE MANUAL FANS Job Name: MICKEY LELAND CPAYM Location: HOUSTON, TEXAS Architect: HARRISON KORNBERG Engineer: SHAH SMITH & ASSOCIATES Contractor: ENVIROTECH MECHANICAL Date: APRIL 20, 2016 Submitted By: RUSTY REED A Certified Minority Owned Small Business Enterprise P. O. Box 630409, Houston, TX 77263-0409 Phone: (713) 266-1761 Fax: (713) 781-6532 www.distribaire.com...
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Page 2: Receiving And Inspection
All of the publications listed above can be obtained from should not be mounted on sheet metal roof curbs, but sup- Loren Cook Company by phoning (417) 869-6474, exten- ported by integral members of the roof structure, designed sion 166; by FAX at (417) 832-9431; or by e-mail at and constructed by others per local requirements and envi- info@lorencook.com. - Page 3 duct diameter of straight duct before placing an elbow or d. Adjust the isolators by turning the leveling nut counter damper. Clearance is also required on the inlet and outlet clockwise several turns at a time alternately on each for maintenance such as pulley or bearing replacement. isolator until the fan weight is transferred onto the iso- lators and the fan raises uniformly off the blocks.
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Page 4: Wiring Installation
Wheel-to-Inlet Clearance Tolerance The correct wheel-to-inlet clearance is critical to proper OFFSET ANGULAR OFFSET/ANGULAR Maximum fan performance. This clearance should be verified before Center Distance initial start-up since rough handling during shipment could Up thru 12” 1/16” 12” up through 48 1/8”... -
Page 5: Wiring Diagrams
Premium Efficiency motor with Class F coast-down tests and identify any resonant frequencies insulation. Motors that are not supplied by Loren Cook after the equipment is fully installed. These resonant fre- Company should have the recommendation of the motor quencies are to be removed from the operating range of manufacturer for use with a VFD. -
Page 6: Wheel Rotation
ble to interchange two leads at this location so that the Typical Wiring Path for Roof Mounted Units fan is operating in the correct direction. For sizes 135-600, route conduit under motor cover between the motor support rails and out to enclosure as shown in Figure 1 below. - Page 7 Inspect fans exhausting corrosive or contaminated air Loren Cook Company uses petroleum lubricant in a lith- within the first month of operation. Fans exhausting con- ium base. Other types of grease should not be used unless taminated air (airborne abrasives) should be inspected the bearings and lines have been flushed clean.
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Page 8: Bearing Replacement
Changing Shaft Speed k. Slide shaft through bearings until shaft protrudes the same amount as measured above. Tapping the inner All belt driven fans with motors up to and including 5 HP race of each bearing with a soft driver may be are equipped with variable pitch pulleys. - Page 9 Troubleshooting Problem and Potential Cause Low Capacity or Pressure •Incorrect direction of rotation. Make sure the fan rotates in same direction as the arrows on the motor or belt drive assembly. •Poor fan inlet or outlet conditions. There should be a straight clear duct at the inlet or outlet. •Improper wheel alignment.
- Page 10 QMX/QMXD-HP/QMX-HP Parts List Horizontal Mount Vertical Mount Direct Drive ITEM ITEM ITEM ITEM NUMBER DESCRIPTION NUMBER DESCRIPTION Companion Flange (Optional) Bearing Cover External Inlet Vane Damper (Optional) Bearings (Two Required) Inlet Spiral Guard or Safety Screen (Optional) Isolator (Four Required Optional)
- Page 11 QMXE/QMXE-HP Parts List ITEM ITEM NUMBER DESCRIPTION QMX Curb Cap QMXE Birdscreen QMXE Top Cap Post QMXE Baffle Brace QMXE Top Cap Extension (for Size 90 only) QMXE Top Cap See common parts (not shown) listed on page 9. QMXS/QMXS-HP Parts List ITEM ITEM NUMBER...
- Page 12 QMXU/QMXU-HP Parts List ITEM ITEM NUMBER DESCRIPTION QMX Curb Cap QMXU Lifting Lug QMXU Damper QMXU Damper Stop QMXU Windband QMXU Discharge Guard (Optional) See common parts (not shown) listed on page 9. QMXLE/QMXLE-HP Parts List ITEM ITEM NUMBER DESCRIPTION QMXLE Mixing Box QMXLE Curb Cap QMXLE Middle Section...
- Page 13 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.
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Page 14: Installation
• Inspect dampers (if included) for free operation of Loren Cook Company’s AC catalog & VCR catalog all moving parts. provide additional information describing the equipment, • Record on the Delivery Receipt any visible sign of fan performance, available accessories and specification damage. -
Page 15: Damper Installation
If the fan was delivered with the motor unmounted, see the maintenance sections for belt and pulley installation. Downblast Wall Exhausters If the fan is a wall mount unit and a grease terminator or grease trough was not purchased, a 1-1/16 inch Wires diameter drain hole should be inserted on the bottom side of the unit for drainage. - Page 16 NOTICE! Follow the wiring diagram in the 2 Speed, 2 Winding, 3 Phase 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).
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Page 17: Operation
wheel/inlet drawing for correct overlap. Adjust the overlap by loosening the wheel hub and moving the wheel along the shaft to obtain the correct Electrical Shock & Fire Hazard: value. Insulate Unused Leads Separately. A uniform radial gap (space between the edge of the cone and the edge of the inlet) is obtained by loosening Failure to follow these instructions could result in the upper or lower bearing. -
Page 18: Maintenance
NLGI #2 consistency. If user Should the motor prove defective within a one-year desires to utilize another type of lubricant, they take period, contact your local Loren Cook representative responsibility for flushing bearings and lines, and or your nearest authorized electric motor service maintaining a lubricant that is compatible with the representative. - Page 19 Changing Shaft Speed pulley on the motor shaft. Damage to the pulleys can occur when excessive force is used in placing the Belt driven ventilators (5HP or less) are equipped with pulleys on their respective shafts. variable pitch pulleys. To change fan speed, perform the 7.
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Page 20: Troubleshooting
Troubleshooting motor shaft. Figure 2 indicates where to measure the allowable gap for the Review the following problems and causes drive alignment tolerance. All contact points (indicated by WXYZ) are to Low Capacity or Pressure have a gap less than the tolerance •... - Page 21 ACE-D Parts Item ACE-D Description 70-100 101-180 150-300 Top cap Lid Top cap Lid Top Cap Top Cap Cylinder Top Cap Cylinder Bolts (4) Top Cap Clip (4) Top Cap Clip (4) Motor Motor Motor Motor Plate Motor Plate Motor Plate Baffle Baffle Baffle...
- Page 22 ACW-D Parts ACW-D Description Item 70-100 101-195 150-245 Top cap Lid Top cap Lid Top Cap Top Cap Cylinder Top Cap Cylinder Bolts (4) Top Cap Clip (4) Top Cap Clip (4) Motor Motor Motor Motor Plate Motor Plate Motor Plate Baffle Baffle Baffle...
- Page 23 ACRU-D Parts Item ACRU-D Parts Description 70-100 101-195 210-300 Top Cap Top Cap Lid Top Cap Lid Top Cap Top Cap Cylinder Cylinder Bolts (4) Top Cap Clip (4) Top Cap Clip (8) Motor Motor Motor Motor Plate Motor Plate Motor Plate Baffle Baffle...
- Page 24 VCR-D Parts VCR-B Parts VCR-D Sizes 70-195 VCR-B Sizes 100-490 VCR-B Parts Description Item 100-225 270-490 Top Cap Lid Top Cap Lid Top Cap Lid Top Cap Cylinder Top Cap Cylinder Top Cap Cylinder Top Cap Clip (4) Top Cap Clip (4) Top Cap Clip (8) Motor Motor...
- Page 25 To make a warranty claim, notify Loren Cook Company, General Offices, 2015 East Dale Street, Springfield, Missouri 65803-4637, explaining in writing, in detail, your complaint and referring to the specific model and serial numbers of your fan. Upon receipt by Loren Cook Company of your written complaint, you will be notified, within thirty (30) days of our receipt of your complaint, in writing, as to the manner in which your claim will be handled.
- Page 26 SQL when it’s stored outdoors, or on a construction site follow the additional steps below. Loren Cook catalog SQI provides additional information describing the equipment, fan performance, available • Cover the inlet and outlet, and belt tunnel opening to accessories, and specification data.
- Page 27 Motor Plate Motor Plate Adjustment Nut Tolerance OFFSET ANGULAR OFFSET/ANGULAR Maximum Center Distance Up thru 12” 1/16” 12” up through 48 1/8” Over 48” 1/4” CENTER DISTANCE (CD) Motor Plate Adjustment Wiring Installation (continued) Figure 2 Leave enough slack in the wiring to allow for motor move- Final Installation Steps ment when adjusting belt tension.
- Page 28 Wiring Diagrams Wiring Diagrams Single Speed, Single Phase Motor 3 Phase, 9 Lead Motor 3 Phase, 9 Lead Motor Y-Connection Delta-Connection Low Voltage High Voltage Low Voltage High Voltage 208/230 Volts 460 Volts 208/230 Volts 460 Volts 4 5 6 7 8 9 4 5 6 7 8 9...
- Page 29 Bearings should be relubricated in accordance with the Should the motor prove defective within a one-year period, condition chart below. contact your local Loren Cook Company representative or For best results, lubricate the bearing while the fan is in your nearest authorized electric motor service representative.
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Page 30: Changing Fan Speed
e. Slide new bearings onto the shaft to the desired loca- Changing Fan Speed tion and loosely mount bearings onto the bearing sup- All belt driven fans with motors up to and including 5 HP port. Bearing bolts and setscrews should be loose are equipped with variable pitch pulleys. - Page 31 Wheel-to-Inlet Clearance Troubleshooting The correct wheel-to-inlet clearance is critical to Problem and Potential Cause proper fan performance. This clearance should be Low Capacity or Pressure verified before initial start- •Incorrect direction of rotation. Make sure the fan rotates in same direc- tion as the arrows on the motor or belt drive assembly.
- Page 32 SQI-D Parts List Discharge View Discharge View Inlet View Inlet View Air Flow Air Flow Description Part Sizes 70-90 Size 120 Size 135 Sizes 150-165 Hex Bolts) Hex Bolt Hex Bolt Hex Bolt Inlet Panel Inlet Panel Inlet Panel Inlet Panel Inlet Inlet Inlet...
- Page 33 To make a warranty claim, notify Loren Cook Company, General Offices, 2015 East Dale Street, Springfield, Missouri 65803-4637, explaining in writing, in detail, your complaint and referring to the specific model and serial numbers of your fan. Upon receipt by Loren Cook Company of your written complaint, you will be notified, within thirty (30) days of our receipt of your complaint, in writing, as to the manner in which your claim will be handled.
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Page 34: Limited Warranty
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.
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