CT87N/CT87K
The Round
®
CT87K (24 Vac heating systems) • CT87N (24 Vac heating and cooling systems)
Getting started
Check package contents:
• Thermostat
• Coverplate
• Wall anchors & screws (2 each)
• Wire labels
This thermostat contains a Lithium battery which
may contain Perchlorate material.
Perchlorate Material—special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate
Remove your old thermostat
1. CAUTION TURN OFF POWER to system at the furnace, or at the fuse/circuit breaker
panel before you begin.
2. Remove cover and thermostat, but leave wallplate with wires attached.
Leave wallplate in place.
Old thermostat
® U.S. Registered Trademark. U.S. Patents 7,159,789;
7,159,790; 7,476,988 and other patents pending.
Copyright © 2009, Honeywell International Inc.
All rights reserved.
Owner's Manual
English: Page 1
Mode d'emploi
Français : Page 6
Manual de Uso
Español: Página 11
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)
Is there a sealed tube containing
mercury? If so, see mercury notice
below.
Cover
MERCURY NOTICE
If your old thermostat contains
mercury, contact your local waste
management authority for proper
disposal instructions.
The Round
69-1959EFS-02
®