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Warranty, Troubleshooting – Greenheck Vari-Green Control - Indoor Air Quality - Temp/Humidity (475573) User Manual

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AMCA Publication 410-96, Safety Practices for Users and

Installers of Industrial and Commercial Fans, provides ad-

ditional safety information. This publication can be obtained

from AMCA International, Inc. at: www.amca.org.

Greenheck Vari-Green

®

Motor catalog provides additional

information describing the equipment, fan performance,

available accessories, and specification data.

Phone: (715) 359-6171 • Fax: (715) 355-2399 • E-mail: [email protected] • Web site: www.greenheck.com

Greenheck warrants this equipment to be free from defects in material and workmanship for a period of

one year from the shipment date. Any units or parts which prove defective during the warranty period will

be replaced at our option when returned to our factory, transportation prepaid. Motors are warranted by

the motor manufacturer for a period of one year. Should motors furnished by Greenheck prove defective

during this period, they should be returned to the nearest authorized motor service station. Greenheck

will not be responsible for any removal or installation costs.
As a result of our commitment to continuous improvement, Greenheck reserves the right to change

specifications without notice.

Warranty

475573 • Indoor Air Quality - Temp/Humidity, Rev. 1, June 2012

Copyright 2012 © Greenheck Fan Corporation

Problem

Fan always at minimum speed

Blow into the bottom of the unit. Your breath should increase the humidity

measurement and raise the temperature measurement. The fan speed should

increase within a few minutes.

Check that the temperature and humidity measurements are decreasing.

Setpoint may be incorrect for the persistent load.

Setpoint may be incorrect for the persistent load.

If the controller will not turn the fan off, verify that the measured temperature is at

least 0.9°F below and the relative humidity is at least 3% below set point.

Verify that the cutout timer has started by looking for the flashing dot.

If the controller will not restart the fan, verify that the measured temperature is at

least 1°F above the setpoint and the relative humidity is at least 5% above the

setpoint.

Fan always at high speed

Fan Cutout not working properly

Potential Solution

Troubleshooting