Honeywell CT87 User Manual

69-1552ES
Model CT87
Installation Quick Guide
Items needed: Pan head screwdriver, drill and level.
Congratulations! You have finished installing your new Honeywell thermostat!
For additional information refer to Installation Instructions or contact Honeywell
Customer Relations at www.honeywell.com/yourhome or 1-800-468-1502.
1. Turn off Heating/Cooling system power.
2. Remove old thermostat from wall. Use enclosed
labels to mark the wires as you disconnect them.
Label wires by using letters above screw termi-
nals, not wire colors.
3. Mount the cover ring (optional) and wallplate or
subbase to the wall using a level.
4. Attach the system wires to matching screw
terminals using the label designations from step 2.
Set the heat anticipator indicator to 1.2 before wiring
the thermostat .
5. Remove the thermostat cover and mount the
thermostat to the wallplate or subbase.
6. Remove and discard the red plastic insert securing
the mercury switch.
7. Set the heat anticipator indicator by matching the
heat anticipator setting from your old thermostat or
using the chart below.
8. Attach the thermostat cover.
9. Set thermostat to desired temperature.
.15
.12
.2
.6
.8
1.0
.5
.4
.3
HOLE SUITABLE FOR
PENCIL POINT
TO MOVE INDICATOR
HEAT
ANTICIPATOR
INDICATOR
SCALE
M1368A
80
9
0
7
0
6
0
9
0
8
0
70
6
0
Your Heating System
Steam
Hot Water Heat
High Efficiency Hot Air
Standard Hot Air
Electric Heat
Anticipator
Settings
1.2
0.8
0.8
0.4
0.3
SUBBASE
CT87
WALLPLATE
COVER RING
M20111
LEVEL
M20112
Copyright © 2005 Honeywell • • All Rights Reserved

Honeywell CT87 Specifications

General

Stages	1 Heat / 1 Cool
Display	Analog dial
Mounting	Wall-mounted
Color	White
Temperature Range	50°F to 90°F
Compatibility	Single-stage heating and cooling systems
Accuracy	±1°F
Weight	0.5 lbs
Power Source	24VAC (Heating and Cooling Systems)

Summary

Thermostat Installation Steps

Turn Off System Power

Ensure the heating/cooling system power is turned off before proceeding with installation.

Remove Old Thermostat

Disconnect and label wires from the old thermostat using terminal letters, not wire colors.

Mount Wallplate and Cover Ring

Secure the optional cover ring and wallplate to the wall using a level for proper alignment.

Attach System Wires

Connect system wires to the corresponding screw terminals based on the labels from the previous step.

Set Heat Anticipator

Adjust the heat anticipator indicator to the correct setting, typically 1.2 or as per your heating system.

Mount Thermostat and Remove Insert

Attach the thermostat to the wallplate and remove the red plastic insert from the mercury switch.

Attach Thermostat Cover

Secure the thermostat cover to the installed unit.

Set Desired Temperature

Once installed, set the thermostat to your preferred temperature setting.