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T834 Series
Thermostat
® U.S. Registered Trademark. Patents pending.
Copyright © 2006 Honeywell International Inc.
All rights reserved.
Owner’s Manual
English: Page 1
Mode d’emploi
Français: Page 6
Manual de Uso
Español: Página 11
Must be installed by a trained, experienced technician
• Read these instructions carefully. Failure to follow these instructions can
damage the product or cause a hazardous condition.
CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before
beginning installation.
MERCURY NOTICE
If this product is replacing a control that contains mercury in a sealed tube, do not
place the old control in the trash. Contact your local waste management authority for
instructions regarding recycling and proper disposal.
Pre-installation checklist
Before you begin, make sure you have:
• No. 2 Phillips & small pocket screwdrivers
• Hammer
• Level (optional)
• Pencil
• Drill and bit (3/16” for drywall, 7/32” for plaster)
Check package contents:
• Thermostat
• Wall anchors & screws (2 each)
This manual covers the following models:
Horizontal Mount: T8034N • Vertical Mount: T834N/T834L