Honeywell 36 User manual

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Seven Day
Programmable Heat and/or Cool
Low Voltage (20 to 30 Vac) Thermostat and Wallplate
Model CT3600
OWNER’S GUIDE
Honeywell/36
Programmable Thermostat
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69-0939-1

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Total Comfort Temperature Management with
Smart Response Control
Congratulations!You made a smart choice when you purchased your new Honeywell Thermo-
stat.It’s the smart thermostat that:
• Keeps you comfortable by automatically calculating exactly when the furnace or air condition-
ing should go on to have the house at the desired comfort temperature by the time you wake
up or return home.
• Saves the maximum amount of energy and money by remembering to automatically adjust
the temperature when you leave home or go to sleep.
• Provides the ultimate in comfort and convenience . It comes already programmed, so it’s your
choice—use the preprogrammed schedule or set your own.
We invite you to spend a few minutes reading this manual.You’ll find it answers many of the
questions that will arise as you become familiar and comfortable with your Honeywell thermostat,
the state of the art in home comfort controls.

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RECYCLING
THERMOSTAT
If this thermostat is replacing a control
that contains mercury in a sealed
tube, do not place your old control in
the trash. Contact your local waste
management authority for instructions
regarding recycling and the proper
disposal of this control, or of an old
control containing mercury in a sealed
tube.
If you have questions, call Honeywell
Inc. at 1-800-468-1502.
M10614
MERCURY
SWITCH
TYPICAL LOCATION OF A MERCURY
SWITCH IN A THERMOSTAT

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TABLE OF CONTENTS
Step 1. Prepare for Installation ................................................................. 5
Step 2. Remove Old Thermostat ............................................................... 6
Step 3. MountThermostat Wallplate ......................................................... 8
Step 4 Wire WallplateTerminals ............................................................... 9
Step 5. Install the Batteries ....................................................................... 13
Step 6. Set Fan Operation Switch ............................................................. 14
Step 7. Mount theThermostat ................................................................... 15
Step 8. CustomizingThermostat............................................................... 15
Step 9. Programming ................................................................................. 20
Step 10. OperatingYour Thermostat ......................................................... 24
Step 11. Setting the Fan and System Switches....................................... 27
Troubleshooting Guide .............................................................................. 28
Limited One-Year Warranty ....................................................................... 31

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STEP 1. PREPARE FOR INSTALLATION
❑Check the compatibility chart to make sure this thermostat is compatible with your system.If
not, return to retailer.For specialty thermostat information, call Honeywell Customer
Assistance, toll-free 1-800-468-1502.
Compatibility Chart.
▲▲
1
▲▲
1
▲▲
1
Not compatible with any 120/240 volt circuit.
Compatible with 2-wire Honeywell and Taco zone valves. Not compatible with 3-wire zone
valves or 2-wire White Rodgers no. 1361 zone valves.
System Type
Compatible
with
CT3600
Gas—Standing Pilot Yes
Gas—Electronic Ignition Yes
Gas-Fired Boilers Yes
Gas—Millivolt No
Oil-Fired Boilers Yes
Oil-Fired Furnace Yes
Electric Furnace Yes
System Type
Compatible
with
CT3600
Electric Air Conditioning Yes
Baseboard Electric
(120/240 line volt)
No
Single Stage Heat Pump Yes
Multistage Heat
Pumps/Multistage
Equipment
No

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STEP 2. REMOVE OLD THERMOSTAT
❑Test to make certain that your heating and
cooling systems are working properly.If
either does not work, contact your local
heating/air conditioning dealer.To avoid
compressor damage, do not operate the
cooling system when outdoor temperature
is below 50°F (10°C).
❑Turn off power to system at the furnace, or
at the fuse/circuit breaker panel.
❑Carefully unpack your new thermostat and
wallplate; save package of screws,
instructions and receipt.
❑Remove the cover from the old thermo-
stat. If it does not snap off when pulled
firmly from the bottom, check for a screw
used to lock on the cover.
❑Loosen screws holding thermostat to
subbase, wallplate or wall, and lift away.
❑Disconnect wires from old thermostat or
subbase. As you disconnect each wire,
attach the
enclosed
labels with
the old
terminal
designation.
If there are
only two
wires, they do not need to be labeled.
Wrap wires around pencil to keep them
from falling back into the wall, as shown.
WIRES THROUGH
WALL OPENING
M5136

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Replacing a clock thermostat that has
C or C1 clock terminals?
If you are replacing a Honeywell
Chronotherm® ClockThermostat, you may
find one or two wires that go to the C or C1
clock terminals on the Chronotherm® wiring
wallplate.Do not allow them to touch, or you
can damage your transformer. Disconnect the
wires and wrap them separately using
electrical tape;do not wrap them together.
Place the wires where they will not interfere
with the operation of the new thermostat.
Record the colors and terminal designation
labels of the remaining wires.
Six or more wires?
If there are six or more wires (excluding clock
wires attached to terminals), you most likely
have a variation of a multistage heat pump or
other multistage system.The thermostat is
not compatible with such systems so return
the product to the place of purchase.If you
would like information about which program-
mable thermostats will work with your
system, call Honeywell Customer Assistance
Center at 1-800-468-1502.
Three thermostat wires?
If you have three wires for a heating only
system and can operate the fan using the fan
ON switch, this thermostat will work with your
system.However, some hot water (zoned)
heating systems have three thermostat wires.
The thermostat will work only if you install an
isolating relay on these systems. For details,
call Honeywell Customer Assistance Center
at 1-800-468-1502.

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STEP 3. MOUNT THERMOSTAT WALLPLATE
WIRES
THROUGH WALL
WALL
MOUNTING
HOLES
M15044
MOUNTING
SCREWS
WALL
ANCHORS
(2)
❑Position wallplate on wall. Level the
wallplate for appearance if desired.Use a
pencil to mark the two mounting holes that
best fit the application.
❑Remove wallplate from wall, and drill
3/16 inch holes in wall (if drywall) as
marked. For firmer material such as
plaster or wood, drill 7/32 inch holes.
Gently tap anchors (provided) into drilled
holes until flush with the wall.
❑Reposition wallplate over holes, pulling
wires through wiring opening.Loosely
insert two mounting screws into holes.
❑Level for appearance only; thermostat
functions properly even when not level.
Tighten mounting screws.

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STEP 4. WIRE WALLPLATE TERMINALS
NOTE: All wiring must comply with local
codes and ordinances. If unsure
about household wiring procedures,
call your local heating/air condition-
ing contractor.
Refer to the labels you placed on wires when
you removed your old thermostat.
❑Match the letter of your old thermostat
wire with the terminal of the correspond-
ing letter on your new thermostat.Refer to
illustrations on pages 10, 11, and 12.
Be sure to remove the factory-installed
jumper connecting terminals R and Rc when
wires are connected to both the R and Rc
terminals.
❑Loosen the terminal screws and slip each
wire beneath its matching terminal. Either
straight or wraparound wiring connections
are acceptable (see illustration).Tighten
terminals.
❑Plug the hole in the wall with insulation to
help prevent drafts from adversely
affecting thermostat operation.
M4826
FOR WRAPAROUND
INSERTION STRIP
7/16 IN. (11 MM).
FOR STRAIGHT
INSERTION STRIP
5/16 IN. (8 MM).

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M10617
THERMOSTAT
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
1
4-WIRE HEAT/COOL
(JUMPER INTACT)
HEATING
RELAY OR
VALVE COIL
COOLING
CONTACTOR
COIL
FAN
RELAY
B
R
RC OW Y
G
M10616
THERMOSTAT
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
1
HEATING
RELAY OR
VALVE COIL
B
R
RC OW Y
G
2-WIRE HEAT-ONLY
(JUMPER INTACT)