Honeywell TH8321 Installation Guide
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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