Honeywell CT87A Support Question
Honeywell CT87A Support Question
Find answers below for this question about Honeywell CT87A.Need a Honeywell CT87A manual? We have 1 online manual for this item!
Question posted by Anonymous-58819 on May 9th, 2012
This Is My Second Thermostat Will Cycle Set Anticipator Switch Several Times
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Current Answers
Related Honeywell CT87A Manual Pages
Owner's Manual - Page 1
...compressor) with no auxiliary or backup heat. Installation Instructions
Compatible with:
Heating/Cooling system
CT87A CT87B CT87J
Heating only: Gas or oil fueled warm air, steam, or hot ...Care at 1-800-468-1502.
CT87A,B,J Round® Thermostat
LOW VOLTAGE (15 TO 30 VAC), THERMOSTAT AND MOUNTING HARDWARE
1 Verify that you have the correct thermostat
Using the compatibility chart below, ...
Owner's Manual - Page 2
... not disconnect the wires.
69-0274-6
2 Necessary if installing on the old
thermostat (Fig. 1). OLD THERMOSTAT ANTICIPATOR SCALE
Current setting: If you reach Step 8 of
MERCURY SWITCH IN A THERMOSTAT
system when you cannot find the heat
LEVER
anticipator setting on the wall; CT87A,B,J ROUND® THERMOSTAT
2
Prepare for your type of M20206 this installation.
4. Save your new...
Owner's Manual - Page 3
CT87A,B,J ROUND® THERMOSTAT
5. Fig. 2. 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 this thermostat is replacing a
control that came with the CT87. M19086
MERCURY NOTICE
Fig. 3. Fig. 4. Installing wallplate/subbase...
Owner's Manual - Page 4
CT87A,B,J ROUND® THERMOSTAT
1. screws into the wall. • If attaching wallplate directly to mark the center of the screw holes on top. .... • If using the cover ring: Position the cover ring against the wall so that the fan and 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...
Owner's Manual - Page 5
SPIRIT LEVEL
LEVELING POSTS (2)
OPENING FOR THERMOSTAT WIRING
MOUNTING SLOTS
M3319A
2. Align the screw slots on the left side of the ... until level as shown in . screws.
4. Loosely attach the wallplate/subbase to the outlet box with two 1/4in. rate thermostat temperature.
1. Place the cover ring against the outlet box so that the wallplate or subbase is pointing up , and pull ...
Owner's Manual - Page 6
...Wiring Cross-reference
Wire Label R, RH, 4, V Rc, R W, W1, H Y, Y1, M G, F B O See Fig. 13
Connect to CT87A
R
W Y
See Fig. 9
Connect to Connect to
CT87B
CT87J
RH
R
Rc
W
W
Y
Y
G
G
B*
O*
P
*Never attach wires ...terminal on the CT87 wallplate
or subbase. CT87A,B,J ROUND® THERMOSTAT
6
Wire the thermostat
1. Strip the wire insulation as needed to both the B and O ...
Owner's Manual - Page 7
... • OFF •
HEAT
FAN ON
RH G
RC
Y W
AUTO •
CT87B SUBBASE
POWER FAN COOL
TO SYSTEM
HEAT
JUMPER RH TO RC
M20185
7
69-0274-6
R
Y W
CT87A WALLPLATE
WIRE LABELS (LETTERS ON ORIGINAL THERMOSTAT TERMINALS) R
3-WIRE
W
HOT WATER
ZONE VALVE
B M20184
Fig. 10...
Owner's Manual - Page 8
...HEAT PUMP COMPRESSOR
DO NOT ATTACH WIRES TO BOTH B AND O
1 IF WIRES ARE ATTACHED TO Y OR W, AND P ON YOUR OLD
THERMOSTAT, CONTACT YOUR LOCAL CONTRACTOR FOR
FURTHER ASSISTANCE. M20225
COOL • OFF •
HEAT
FAN ON
WG
Y
P
R
B
O
JUMPER ... VALVE
DO NOT ATTACH WIRES TO BOTH B AND O M20186
Fig. 13. CT87A,B,J ROUND® THERMOSTAT
Fig. 11. CT87B for a 5-wire heating/cooling system.
Owner's Manual - Page 9
IMPORTANT: This prevents the thermostat from being damaged. HEAT ANTICIPATOR INDICATOR
1.2
.6 .5 .4 .3 .2
HOLE SUITABLE FOR PENCIL POINT TO MOVE INDICATOR
.15
SCALE
.12 .10
M20226
3.
CT87A,B,J ROUND® THERMOSTAT
7
Mount the thermostat
1. Fig. 14. Place the thermostat over the wallplate or subbase so that
holds the mercury switch in place during shipping.
2.
NOTE: ...
Owner's Manual - Page 10
...: Steam Hot water heat High-efficiency warm air Standard warm air Electric heat
Heat anticipator setting: 1.2 0.8 0.8 0.4 0.3
2. If the furnace shuts off before the set the system switch to the number that is shown on the thermostat cover. CT87A,B,J ROUND® THERMOSTAT
8
Set the heat anticipator for your type of system shown in Step 3, sub-step 3. Turn the dial until...
Owner's Manual - Page 11
...
Switch System
Fan
Setting
Result
Cool Off
The thermostat controls your heating system. Lower the temperature setting below 50°F (10°C).
1.
Both the heating and cooling systems are off.
Heat On Auto
The thermostat controls your cooling system. IMPORTANT: After heating is below room temperature.
The fan runs continuously. CT87A,B,J ROUND® THERMOSTAT...
Owner's Manual - Page 12
...the exclusion or limitation of incidental or consequential damages, so this limitation may have any time during the warranty period, the product is defective or malfunctions, Honeywell shall repair or... in U.S.A.
on how long an implied warranty lasts, so the above . CT87A,B,J ROUND® THERMOSTAT
Limited One-Year Warranty
Honeywell warrants this product, excluding battery, to be to repair...
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