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 © 2019, Resideo Technologies, Inc.
All rights reserved.
M37778
Before you begin, make sure
you have:
Cover
Owner's Manual
English: Page 1
Mode d'emploi
Français : Page 6
Manual de Uso
Español: Página 11
•
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.
MERCURY NOTICE
If your old thermostat contains
mercury, contact your local waste
management authority for proper
disposal instructions.
The Round
®
69-1959EFS-04