Greenheck VAD Installation, Operation And Maintenance Manual

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Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.

Table of Contents

General Safety Information . . . . . . . . . . . . . . . . . . . . 1
General Information
Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Storage - Indoor / Outdoor . . . . . . . . . . . . . . . . . . 2
Inspection and Maintenance during Storage . . 2-3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . 3
Controlling Vibration
Vibration Isolators . . . . . . . . . . . . . . . . . . . . . . . . . 4
Flexible Duct Connectors . . . . . . . . . . . . . . . . . . . 4
Effects of Installation on Performance . . . . . . . . . 4-5
Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Routine Maintenance
Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Variable Frequency Drives . . . . . . . . . . . . . . . . . . 6
Shaft Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
V-Belt Drives
Belt Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
V-Belt Replacement . . . . . . . . . . . . . . . . . . . . . . . 8
Blade Pitch Adjustment for Belt and Direct Drive . . 8
Pitch Protractor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 10-11
Maintenance Log . . . . . . . . . . . . . . . . . . . Backcover
Our Commitment . . . . . . . . . . . . . . . . . . . Backcover
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General Safety Information

Only qualified personnel should install this fan. Personnel
should have a clear understanding of these instructions
and should be aware of general safety precautions.
Improper installation can result in electric shock, possible
injury due to coming in contact with moving parts, as
well as other potential hazards. Other considerations
may be required if high winds or seismic activity are
present. If more information is needed, contact a licensed
professional engineer before moving forward.
1. Follow all local electrical and safety codes, as well as
the National Electrical Code (NEC), the National Fire
Protection Agency (NFPA), where applicable. Follow
the Canadian Electrical Code (CEC) in Canada.
2. The rotation of the impeller is critical. It must be free
to rotate without striking or rubbing any stationary
objects.
3. Motor must be securely and adequately grounded.
4. Do not spin fan impeller faster than max cataloged
fan rpm. Adjustments to fan speed significantly
effects motor load. If the fan RPM is changed, the
motor current should be checked to make sure it is
not exceeding the motor nameplate amps.
5. Do not allow the power cable to kink or come in
contact with oil, grease, hot surfaces or chemicals.
Replace cord immediately if damaged.
6. Verify that the power source is compatible with the
equipment.
7. Never open access doors to a duct while the fan is
running.
DANGER
Always disconnect power before working on or near a
fan. Lock and tag the disconnect switch or breaker to
prevent accidental power up.
CAUTION
When servicing the fan, motor may be hot enough
to cause pain or injury. Allow motor to cool before
servicing.
CAUTION
Precaution should be taken in explosive atmospheres.
Document 452954
Models VAB and VAD
Vane Axial
Vane Axial Fans 1