Honeywell TH8321 Installation Guide

Honeywell Thermostats Installation Guide - TH8321.
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VisionPRO® TH8000 Series
Touch-screen Programmable Thermostat

® U.S. Registered Trademark.  

Copyright © 2012 Honeywell International Inc.  

All rights reserved.

Installation 

Guide

69-2693-01

System Types

• Gas,oil,orelectricheatwithair

conditioning

• Warmair,hotwater,

highefficiencyfurnaces,heat
pumps,steam,gravity

• Heatonly—two-wiresystems,

power to open and close zone 
valves(Series20),andnormally
open zone valves

• Heatonlywithfan
• Coolonly
• 750mVheatingsystems

This manual covers the following models

• TH8110U:For1Heat/1Coolsystems
• TH8320U:Forupto3Heat/2Coolsystems
• TH8321U:Forupto3Heat/2Coolsystemswithdehumidification
(Pull thermostat from wallplate and turn over to find model number)

Need Help?

Forassistancewiththisproductpleasevisithttp://customer.honeywell.com 

or call Honeywell Customer Care toll-free at 1-800-468-1502

This thermostat contains a Lithium battery which may contain Perchlorate material.

PerchlorateMaterial—specialhandlingmayapply, 

Seewww.dtsc.ca.gov/hazardouswaste/perchlorate

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