Honeywell YCT87K1003 - Round Heat Only Mercury Free Thermostat System Support and Manuals
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Most Recent Honeywell YCT87K1003 Questions
It Dosen't Shut The System Off
I replaced two thermostats, and I have the same problem, it need to be set up at 80 degrees to get t...
I replaced two thermostats, and I have the same problem, it need to be set up at 80 degrees to get t...
(Posted by erickgranados 10 years ago)
How Do I Turn Off The Thermostat?
I tried to put it on off and auto.position but the air is still going also i turn it all the way dow...
I tried to put it on off and auto.position but the air is still going also i turn it all the way dow...
(Posted by pamelapare 11 years ago)
I Would Like To Find A Functional Description Of The Honeywell Ct87 Thermostat
I have the installation manual. I want to find out what the thermostat actually does when it calls f...
I have the installation manual. I want to find out what the thermostat actually does when it calls f...
(Posted by sealnose 12 years ago)
Honewell T87k Calibration
I have three units in the house. Each has different and wide disrepancies between actual temerature ...
I have three units in the house. Each has different and wide disrepancies between actual temerature ...
(Posted by victornowicki 12 years ago)
Popular Honeywell YCT87K1003 Manual Pages
Installation Instructions - Page 1
...
Yes No
Single stage heat pump: Outdoor heating/cooling unit No (compressor) with 2-wire cooling-only systems.
® U.S.
No
No
* CT87A is right for your system, visit www.honeywell.com/ yourhome or call Honeywell Customer Care at 1-800-468-1502. If you purchased the correct CT87Thermostat for your heating/cooling system.
CT87A,B,J Round® Thermostat
LOW VOLTAGE (15 TO...
Installation Instructions - Page 2
... find the heat
LEVER
anticipator setting on the old thermostat, you reach Step 8 of M20206 this installation.
4. Unscrew and remove the old thermostat wallplate from the wall, but do not disconnect the wires.
69-0274-6
2 CT87A,B,J ROUND® THERMOSTAT
2
Prepare for your receipt and identify the following parts:
• CT87 Thermostat
• Screws: two 1-in . round head screws...
Installation Instructions - Page 3
...-0274-6 Identify each wire using the wiring labels that contains mercury in a
sealed tube, do not place your
M20133
local waste management authority
for instructions regarding recycling and the proper disposal of the terminal on the old thermo- Fig. 4. Labeling wires. CT87A,B,J ROUND® THERMOSTAT
5. Label the wires using the letter
of this thermostat is replacing a
control that...
Installation Instructions - Page 4
...heating/cooling switches are aligned and the two screw holes on the left and right sides of the wallplate/subbase align with the screw holes on the top.
3. Installing... IN. ROUND HEAD SCREW (2)
A
THERMOSTAT WIRING HOLE
1 THE TWO INNER HOLES ARE USED WITH WALLPLATE.
2 IF OUTLET BOX IS HORIZONTAL, MOUNT COVER RING IN POSITION SHOWN, BUT FASTEN WITH SCREWS THROUGH "A". If installing on an ...
Installation Instructions - Page 5
... Heat and Fan indicators. Align the screw slots on the bottom left and right sides of the cover ring.
3. Place the wallplate or subbase over the cover ring so that the arrow in Fig. 6. Place the cover ring against the outlet box so that the wiring holes line up .
2.
rate thermostat temperature.
1. CT87A,B,J ROUND...
Installation Instructions - Page 6
... the terminal screws (Fig. 7). Use the wiring cross-reference table below to match each wire beneath its corresponding terminal on the CT87 wallplate
or subbase.
FOR STRAIGHT CONNECTION- Securely tighten the terminal screws. 5. STRIP 5/16 in . [11 mm]
BARRIER
M1279
3. CT87A,B,J ROUND® THERMOSTAT
6
Wire the thermostat
1. Push any excess wire back into the wall.
69-0274...
Installation Instructions - Page 7
CT87A,B,J ROUND® THERMOSTAT
Fig. 8. CT87A for a 4-wire heating/cooling system.
R
Y W
CT87A WALLPLATE
WIRE LABELS (LETTERS ON ORIGINAL THERMOSTAT TERMINALS) R
3-WIRE
W
HOT WATER
ZONE VALVE
B M20184
Fig. 10. CT87B for a 3-wire hot water heating only system.
COOL • OFF •
HEAT
FAN ON
RH G
RC
Y W
AUTO •
CT87B SUBBASE
POWER FAN COOL
TO SYSTEM
HEAT
...
Installation Instructions - Page 8
... AND P ON YOUR OLD
THERMOSTAT, CONTACT YOUR LOCAL CONTRACTOR FOR
FURTHER ASSISTANCE.
CT87B for a 4-wire single stage heat pump. COOL • OFF •
HEAT
FAN ON
RH G
RC
Y W
AUTO •
CT87B SUBBASE
HEATING POWER
FAN
TO SYSTEM
COOLING POWER
TO SYSTEM
COOL
HEAT
Fig. 12. CT87J for a 5-wire heating/cooling system. CT87A,B,J ROUND® THERMOSTAT
Fig. 11.
CT87J for...
Installation Instructions - Page 9
... the three captive mounting screws as shown in Fig. 14. NOTE: These screws complete the installation of the thermostat. Place the thermostat over the wallplate or subbase so that
holds the mercury switch in Fig. 15. Fig. 15. HEAT ANTICIPATOR INDICATOR
1.2
.6 .5 .4 .3 .2
HOLE SUITABLE FOR PENCIL POINT TO MOVE INDICATOR
.15
SCALE
.12 .10
M20226...
Installation Instructions - Page 10
....
If you recorded in the table below. If the furnace shuts off before the set the system switch to
maintain accurate temperature control.
1. Snap on the setting scale is below .3 ampere.
9 Check heating/cooling operation
Check heating
1. CT87A,B,J ROUND® THERMOSTAT
8
Set the heat anticipator for your type of system shown in Step 3, sub-step 3. Using a pencil point...
Installation Instructions - Page 11
..., J switches
Switch System
Fan
Setting
Result
Cool Off
The thermostat controls your CT87 has a subbase, set the temperature, turn the dial until the pointer on the CT87J model.
2. The fan runs continuously. If your cooling system.
The fan runs only with the desired temperature. Heat On Auto
The thermostat controls your heating system.
The cooling system should...
Installation Instructions - Page 12
CT87A,B,J ROUND® THERMOSTAT
Limited One-Year Warranty
Honeywell warrants this product, excluding battery, to be to repair or replace the product within a reasonable period of time. THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. on how long an implied warranty lasts, so the above .
Some states do not allow the exclusion or...
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