Honeywell CT87K User Manual

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Owner’s Manual

English: Page 1

Mode d’emploi

Français : Page 6

Manual de Uso

Español: Página 11

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

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)

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

Cover

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®

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CT87N/CT87K • Owner's Manual

Label wires and remove old wallplate

Use a screwdriver to disconnect wires one by one. As you disconnect each wire, wrap it with the label matching the letter on your old thermostat. (Adhesive labels are supplied in your thermostat package.)

Remove the old wallplate only after all wires are labeled. Be careful not to let loose wires fall into the wall opening.

Wrap supplied labels securely around each wire.

CT87N

Do not let wires fall into wall opening!

CT87K

IGNORE WIRE COLORS: Use only letter designations to identify wire types.

For CT87N: If your old thermostat has 7 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement thermostat. Stop now and call 1-800-468-1502 for advice.

For CT87K: If your old thermostat has 4 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement thermostat. Stop now and call 1-800-468-1502 for advice.

Mark mounting position

CT87N		CT87K

1.	Pull wires
	through base.
2.	Level base if	R
	desired.	W
	desired.	Y
3.	Mark positions
	of both screw
	holes.

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Mount thermostat base

1.Drill holes at pencil-marked locations (3/16” for drywall, 7/32” for plaster).

2.Use hammer to tap anchors into holes until flush with wall.

3.[Optional] Pull wires through cover plate (if needed to cover marks left by the old thermostat).

4.Pull wires through thermostat base, position over anchors, then insert mounting screws. Check level if desired, then tighten screws.

Cover plate

(optional)

Thermostat base

Connect wires

1.Match each labeled wire with same letter on the terminal block(s).

2.Use a screwdriver to loosen screw terminals, insert bare wire into slots, then tighten screws.

3.Push any excess wire back into the wall opening.

Labels don't match?

If labels do not match letters on thermostat, see table below.

Existing wires	Connect to:
R • RH • 4 • V	Terminal “R”	[1]

Rc	Terminal “Rc”	[1]

O	Terminal “O”	[2]

B	Terminal “B”	[2]

G • F	Terminal “G”

W • W1 • H	Terminal “W”

Y • Y1 • M	Terminal “Y”

C • X • B	Do not use	[3]

CT87N

Wiring CT87N

[1]If wires will be connected to both R and Rc terminals, remove the metal jumper.

[2]Do not connect both O and B if you have a

heat pump. Connect only the O wire. Wrap B wire with electrical tape and do not use.

[3]Do not use C, X or B. Wrap bare end of wire with electrical tape.

CT87K

Wiring CT87K

•2-wire heat-only system: Connect one wire to R terminal, one wire to W terminal.

•3-wire hot water heat-only system: Connect wires R to R, W to W, and Y to Y terminals.

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CT87N/CT87K • Owner's Manual

Set fan operation switch (CT87N)

Move the switch to the proper setting for your system:

F: For gas or oil heating systems, leave the fan operation switch in this factory-set position

(for systems that control the fan in a call for heat).

E: Change the switch to this setting for heat pump or electric heat systems. (This setting is for systems that allow the thermostat to control the fan in a call for heat, if a fan wire is connected to the G terminal.)

Set cycle rate switches

Move the cycle rate switches to the proper setting for your system (see table below).

Heating System

Switch 1

Switch 2

Steam or gravity

High efficiency warm air

Off

(90% plus efficiency),

hot water, or heat pump

Gas or oil warm air

Off

(factory setting)

Electric warm air

Off

Finish installation

Base

Coverplate

(optional)

Thermostat

1.Align the slots on the base with tabs on the thermostat, then push gently until the thermostat snaps into place.

2.Restore electrical power at the heating/ cooling system, or at the fuse/circuitbreaker panel.

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Operation

System switch (CT87N)

•Cool: Controls the cooling system.

•Heat: Controls the heating system.

•Off: All systems are off.

Temperature

Desired indoor temperature. Current indoor temperature.

Fan switch (CT87N)

•On: Fan runs continuously.

•Auto: Fan runs only when heating or cooling system is on.

Temperature setting

Rotate to set desired indoor temperature.

CAUTION: EQUIPMENT DAMAGE HAZARD (CT87N)

Do not operate cooling system when outdoor temperature is below 50°F (10°C).

1-year limited warranty

Honeywell warrants this product to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the

consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell's option).

If the product is defective,

(i)return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or

(ii)call Honeywell Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.

This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the

possession of a consumer.

Honeywell's sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF

ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.

THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONEYEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

This warranty gives you specific legal rights, and you may have other rights which vary from state to state.

If you have warranty questions, please write Honeywell Customer Relations, 1985 Douglas Dr., Golden Valley, MN 55422 or call 1-800-468-1502. In Canada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V 4Z9.

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