If the ‘TIME ONLY’ resistor is used in place of the Outdoor Temperature Sensor, the Controller’s operation is determined by the adjustable timer settings only – the Controller does not limit the operation based on the temperature and humidity limits shown in Figure 3.

If a jumper wire is used in place of the Outdoor Temperature Sensor, the Controller will disregard the temperature setting and base the ventilation on the indoor relative humidity and the user-adjustable timer settings. In this application, the Controller will not ventilate when the indoor relative humidity rises above 55%.

IV. LIMITED WARRANTY

Your Research Products Corporation Aprilaire® Ventilation Controller is expressly warranted for five (5) years from date of installation to be free from defects in materials or workmanship.

Research Products Corporation’s exclusive obligation under this warranty shall be to supply, without charge, a replacement for the Controller which is found to be defective within such five (5) year period and which is returned not later than thirty (30) days after said five (5) year period by you to either your original supplier or to Research Products Corporation, Madison, Wisconsin 53701, together with the installation date of the Controller.

THIS WARRANTY SHALL NOT OBLIGATE RESEARCH PRODUCTS CORPORATION FOR ANY LABOR COSTS AND SHALL NOT APPLY TO DEFECTS IN WORKMANSHIP OR MATERIALS FURNISHED BY YOUR INSTALLER AS CONTRASTED TO DEFECTS IN THE CONTROLLER ITSELF.

IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL BE LIMITED IN DURATION TO THE AFORESAID FIVE YEAR PERIOD. RESEARCH PRODUCTS CORPORATION’S LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, OTHER THAN DAMAGES FOR PERSONAL INJURIES, RESULTING FROM ANY BREACH OF THE AFORESAID IMPLIED WARRANTIES OR THE ABOVE LIMITED WARRANTY IS EXPRESSLY EXCLUDED. THIS LIMITED WARRANTY IS VOID IF DEFECT(S) RESULT FROM FAILURE TO HAVE THIS UNIT INSTALLED BY A QUALIFIED HEATING AND AIR CONDITIONING CONTRACTOR. IF THE LIMITED WARRANTY IS VOID DUE TO FAILURE TO USE A QUALIFIED CONTRACTOR, ALL DISCLAIMERS OF IMPLIED WARRANTIES SHALL BE EFFECTIVE UPON INSTALLATION.

Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages so the above exclusion or limitations may not apply to you.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

WARRANTY REGISTRATION

Please… Take a few minutes to visit us on-line at

www.aprilaire.com

to register your Aprilaire product.

If you do not have on-line access, please mail a postcard with your name, address, phone number, product purchased and date of purchase to:

Research Products Corporation

P.O. BOX 1467

Madison, WI 53701

Thank you!

Your Warranty Registration information will not be sold or shared outside of this company.

10005994 11.06 B2203172B

1015 E. WASHINGTON AVE. • MADISON, WI 53703 • PHONE: 608/257-8801 • FAX: 608/257-4357www.aprilaire.com

Ventilation Controller

Model 8120 Ventilation Controller

Owner’s Manual

Includes Safety & Operating Instructions

and Warranty Information

WARNING

120 volts may cause

 

CAUTION

Sudden operation

injury from electrical shock. Disconnect

 

may cause personal injury or property

power before servicing.

 

damage. Turn Ventilation Controller to

 

 

 

“OFF” before servicing.

 

 

 

 

 

READ AND SAVE THESE INSTRUCTIONS

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Aprilaire 8120 owner manual IV. Limited Warranty, Warranty Registration