Greenheck Vari-Green Control - Constant Pressure Outdoor ( 472864) - Manual

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 instructions could result in personal injury and/or property damage!
1 Vari-Green Constant Pressure Controls
Vari-Green ® Constant Pressure
Controls - Outdoor
Vari-Green constant pressure control system is a
packaged system designed specifically to exhaust air
from high rise buildings, condos, dormitories and hotels.
The system includes an exhaust fan with Vari-Green
®
motor, pressure transducer, pressure tap, and
controller. The system is UL Listed and designed with
considerations for lint laden air. Performance ranges
from 500-3000 CFM and up to 1 inch of pressure. Fan
models available are G, CUE, CW, and SQ. Each system
shall bear a manufacturers nameplate.
Only qualified personnel should install this product.
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. Follow all local electrical and safety codes, as well as
the National Electrical Code (NEC) and the National Fire
Protection Agency (NFPA). Where applicable, follow the
Canadian Electrical Code.
1. The rotation of the wheel is critical. It must be free
to rotate without striking or rubbing any stationary
objects.
2. Motor must be securely and adequately grounded.
3. Do not spin fan wheel faster than maximum
cataloged fan RPM. Adjustments to fan speed
significantly affects 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.
4. Do not allow the power cable to kink or come in
contact with oil, grease, hot surfaces, or chemicals.
Replace cord immediately if damaged.
5. Verify that the power source is compatible with the
equipment.
6. Never open access doors to a duct while the fan is
running.
DANGER
Always disconnect, lock and tag power source before
installing or servicing. Failure to disconnect power
source can result in fire, shock or serious injury.
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.
General Safety Information
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Document #472864
Vari-Green ® Constant
Pressure Controls - Outdoor