Battery Holder
Press down and pull to remove
batteries. Batteries should be
replaced once a year (see page 10).
For assistance with this product please visit
or call Honeywell Customer Care toll-free at
MCR29404
Read and save these instructions.
® U.S. Registered Trademark. Patents pending.
Copyright © 2009 Honeywell International Inc. All rights reserved.
This manual covers the following models:
TH5110D: For 1 Heat/1 Cool systems
TH5220D: For up to 2 Heat/2 Cool systems
TH5320U: For up to 3 Heat/2 Cool systems
(Remove battery holder to find model number)
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1-800-468-1502