PN 475407
Vari-Green
®
Control
Indoor Air Quality–VOC
1
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!
The Air Quality Controller – VOC is specifically
designed to control a fan with a Vari-Green
®
motor.
The controller senses the level of Volatile Organic
Compounds (VOCs) in the space and automatically
adjusts the ventilation rate to the space by
increasing or decreasing the speed of the supply or
exhaust fan based on the level of VOCs.
Applications for this controller include bathrooms,
conference rooms, cafeterias, or any other space
where air quality is of concern. Ventilating based
on the VOC concentration assures that the space
will not be over or under ventilated while using the
Vari-Green motor technology to operate quietly and
efficiently.
The VOC controller has adjustments for air quality
setpoint, and minimum and maximum fan speed.
The fan speed and VOC level are available as
analog outputs to be read by a building automation
system or a secondary device.
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.
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.
Indoor Air Quality – VOC
(Volatile Organic Compounds)
General Safety Information
