Page 1
MagicStat®/3355
Programmable Thermostat by Honeywell
OWNER’S GUIDE
Weekday/Weekend (5-day/ 2-day)
Programmable Heat and/or Cool
Low Voltage (20 to 30 Vac)
Thermostat and Mounting Plate
Model CT3355
1
69-1012
69-1012
Page 2
Welcome to the world of comfort and energy
savings with your new Honeywell MagicStat®
Programmable Thermostat.
Your new thermostat will automatically control
the temperature in your home, keeping you
comfortable while saving energy when programmed according to the instructions in
this manual.
RECYCLING THERMOST A T
If this thermostat is replacing a thermostat that contains mercury in a sealed
tube, see Fig. 1, do
thermostat in the trash. Contact your
local waste management authority for
instructions regarding recycling and the
proper disposal of your old thermostat.
not
place your old
Direct any questions concerning the application
of this thermostat to Honeywell Customer
Assistance at 1-800-468-1502, Monday-Friday
7:00 a.m.-5:30 p.m., Central time.
If you have questions, call Honeywell Inc.
at 1-800-468-1502.
Fig. 1. Typical
location of a
mercury switch in a
thermostat.
2
MERCURY
SWITCH
M3701
69-1012
Page 3
Table of Contents
Step 1: Prepare For Installation ..................................................................................................... 4
Step 2: Remove Old Thermostat ................................................................................................... 6
Step 3: Install Batteries .................................................................................................................. 8
Step 4: Program Thermostat........................................................................................................ 10
Personal Programming Chart ...................................................................................................... 12
Step 5: Adjust Fan Operation Switch, as Required ................................................................... 18
Step 6: Adjust System On-Time,
Step 7: Mount Thermostat Mounting Plate ................................................................................. 21
Step 8: Wire Thermostat Terminals............................................................................................. 23
Step 9: Mount Thermostat............................................................................................................ 27
Step 10: Check Thermostat Operation After Programming and Installing.............................. 28
Step 11: Set Fan and System Switches ..................................................................................... 30
Troubleshooting Guide................................................................................................................. 32
Limited One-Year Warranty ................................................................................. Inside Back Cover
°F/C°, as Required ................................................................. 18
3
69-1012
Page 4
Step 1: Prepare for Installation
■■ Check Table 1 to make sure this thermostat is compatible with your system. If not, return to the
retailer. For more information, call Honeywell Customer Assistance, toll-free 1-800-468-1502.
Table 1. Compatibility Chart.
System Type Compatible With CT3355
Gas—Standing Pilot Yes
Gas—Electronic Ignition Yes
Gas-Fired Boilers Yes
Gas—Millivolt
Oil-Fired Boilers Yes
Oil-Fired Furnace Yes
Electric Furnace Yes
Electric Air Conditioning Yes
Baseboard Electric (120/240 Line Volt)
Heat Pumps/Multistage Equipment
Not compatible with any 120/240 volt circuit.
a
Compatible with 2-wire Honeywell Zone Valves. Isolating relay required for 3-wire thermostats for
zone valves. Not compatible with 2-wire White-Rodgers no. 1361 Valves.
b
Compatible with
systems.
hot water
baseboard systems. Will not work efficiently on steam or gravity
4
No
No
No
a, b
a, b
69-1012
Page 5
■■ Acquire tools and items below as needed. Also purchase two AA alkaline batteries; we recom-
mend Energizer® batteries.
CROSS-RECESSED
SCREWDRIVER
HAND OR POWER
DRILL WITH 3/16 INCH
DRILL BIT, IF NEEDED TO
DRILL HOLES IN WALL
WIRE CUTTER/STRIPPER OR SHARP
KNIFE, IF NEEDED TO STRIP WIRES
LEVEL, IF NEEDED TO LEVEL
THERMOSTAT FOR APPEARANCE
MASKING TAPE, IF
NEEDED TO LABEL WIRES
AS DISCONNECTED FROM
OLD THERMOSTAT
5
M878B
69-1012
Page 6
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
mounting plate; save package of screws,
instructions and receipt.
■■ Remove the cover from the old thermostat.
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 the old thermostat or
subbase. As you disconnect each wire, use
masking tape to label it with the old terminal
designation. If there are only two wires, they
do not need to be labeled. If there is an extra
wire that is not connected to your old
thermostat, you will
also
not be connecting it
to your new thermostat. Wrap wires as shown
to keep them from falling back into the wall.
WIRES THROUGH
WALL OPENING
M5136
6
69-1012
Page 7
Replacing a Clock Thermostat
that has C or C1 Clock Terminals?
If you are replacing a Honeywell Chronotherm®
Thermostat, you can find one or two wires that
go to the C or C1 clock terminals on the
Chronotherm® Thermostat wiring wallplate. Do
not allow them to touch, or you may damage
your transformer. Disconnect the wires and wrap
them separately , using electrical tape.
wrap them together
do not interfere with the operation of the new
thermostat. Record the colors and terminal
designation labels of the remaining wires.
. Place the wires where they
Do not
Six or more wires?
If there are six or more wires (excluding clock
wires attached to terminals), you probably have
a variation of a heat pump or 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 programmable thermostats work
with your system, call Honeywell Customer
Assistance at 1-800-468-1502.
Three thermostat wires?
If you have three wires for heating only and
can operate the fan using the fan ON switch,
this thermostat works with your system.
However, some hot water (zoned) heating
systems have three thermostat wires. The
thermostat does not work without installing an
isolating relay on these systems. For details,
call Honeywell Customer Assistance at
1-800-468-1502.
7
69-1012
Page 8
Step 3: Install Batteries
IMPORTANT
Batteries must be installed for
programming and operation of the
thermostat and heating/cooling
system.
■■ Purchase two AA alkaline batteries; non-
alkaline batteries do not last as long, and
can leak, causing damage to the thermostat
or the wall surface. We recommend
Energizer® batteries.
■■ Make sure the thermostat is set to the OFF
position.
■■ Use a coin to remove the battery door.
■■ Install the fresh batteries as shown, making
sure positive and negative terminals are
oriented correctly.
■■ Replace the battery door.
REMOVING
BATTERY
M1719C
As the batteries are running low, a
DOOR
bAt Lo
indicator flashes for one or two months before
batteries run out completely. Replace the
batteries as soon as possible after the indicator
starts flashing. If you do not replace the
batteries sometime while
8
bAt Lo
is flashing, the
69-1012
Page 9
indicator eventually stops flashing.
bAt Lo
stays on without flashing, indicating the
thermostat and heating/cooling system
have stopped working when the batteries
are almost completely dead.
After the batteries are completely dead, the
bAt Lo
indicator disappears, leaving a com-
pletely blank display.
INSTALL TWO AA ALKALINE
BATTERIES AS SHOWN
Press down on the left ends of the batteries to
remove. If you insert the new batteries within
20 to 30 seconds of removing the old ones,
you do not have to reprogram the thermostat.
However, if the display is blank, the batteries
are dead or incorrectly installed and you must
reprogram. See pages 14 and 15 to reprogram.
IMPORTANT
Although the thermostat has a low
battery indicator, replace the batteries
once a year to prevent the thermostat
and heating/cooling system from
shutting down due to lack of
battery power.
As a precaution, when leaving home for longer
than a month, change batteries before you
leave to prevent the system from shutting down
due to lack of battery power.
M1713
9
69-1012
Page 10
Step 4: Program Thermostat
After the batteries are installed, the thermostat
can be easily programmed in your hand, before
it is installed on the wall.
If you prefer to program the thermostat after it
is installed on the wall, skip to page 18, and
return later to this programming section.
The following Personal Programming Chart
(pages 12 and 13) can be helpful for planning
your program schedule of time and temperature settings for various times of the day.
Four time periods are available during weekdays — WAKE, LEAVE, RETURN, and SLEEP.
These periods can be seen individually on the
display as you press the SET SCHEDULE key.
WAKE is the time period you want the house at
a comfortable temperature when you get up and
while you get ready for work or school. When
deciding what time to set for your WAKE period,
include extra lead time, depending on the
outside temperature and your furnace response
time, to give the furnace a head start to heat the
house before you get up. (This will be a higher
temperature during heating season, or a lower
temperature during cooling season.)
LEAVE is the time period you can set for an
energy-saving temperature while you are away
at work or school. (This will be a lower temperature during heating season, or a higher
temperature during cooling season.)
RETURN is the time period you want the
house at a comfortable temperature for
activities before bedtime. When deciding what
time to set for your RETURN period, include
extra lead time, depending on the outside
temperature and your furnace response time,
10
69-1012
Page 11
to give the furnace a head start to heat the
house before you arrive home. (Again, this is
higher heating or lower for cooling.)
SLEEP is the time period you can set for an
energy-saving temperature while you are
sleeping. (Again, this is lower for heating or
higher for cooling. For more comfortable
sleeping, some people choose not to raise the
cool temperature during the night.)
You will set one schedule for weekdays and
another for weekends, because your requirements will probably be different for each. Also,
during weekends, only the WAKE and SLEEP
time periods are available.
Fill in the times and temperatures you desire
for weekdays and weekends. If you decide not
to program the thermostat, it will automatically
control heating at 68°F (20°C), and cooling at
78°F (26°C), 24 hours a day. Also, you do not
need to enter a time and temperature program
for all periods if your schedule does not require
it. For example, a house that is occupied
during weekdays would only require programs
for WAKE and SLEEP.
If no program is entered for the weekends, the
thermostat will operate on the weekday SLEEP
program all weekend.
Before programming, remove the clear plastic
overlay covering the display.
When pressing the keys, use the ball of your
finger or a soft pencil eraser. Using sharp
fingernails or pencil points can damage the
keypad.
If you make an error at any time during
programming, just press the RUN PROGRAM
key, and continue again at the step where you
left off.
11
69-1012
Page 12
Personal Programming Chart
Heating Program
Weekdays Start Time Heating Temperature
WAKE
1
LEAVE
RETURN
1
SLEEP
Weekends
WAKE
1
SLEEP
WAKE and RETURN start times should include extra lead time based on outside temperature
1
and furnace response time, to give your furnace a head start to heat the house.
2
The temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C).
12
69-1012
2
Page 13
Cooling Program
Weekdays Start Time Heating Temperature
WAKE
1
LEAVE
RETURN
1
SLEEP
Weekends
WAKE
1
SLEEP
WAKE and RETURN start times should include extra lead time based on outside temperature
1
and furnace response time, to give your furnace a head start to heat the house.
2
The temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C).
2
NOTE: If you decide not to program the thermostat, it automatically controls heating at 68°F
(20°C), and cooling at 78°F (26°C), 24 hours a day.
13
69-1012
Page 14
This guide can be used for programming your new thermostat.
NOTE: Batteries are required for operation and programming. When inserting batteries, set
system switch to OFF. Remove the battery door (on the thermostat left side) using a coin
at the bottom. Follow instructions on pages 8 and 9.
Time
Set Current Time/Day
To set the time, press and release once, then press until current time shows; to set
the day,
press and release again, then press until current day shows; then press .
Set
Clock/Day
Heating Program
With system switch at HEAT, press and release once. WAKE, Mon-Fri and SET appear on
Set
Clock/Day
Time
Ahead
Back
Weekday
Schedule
Ahead
Back
Run
Program
the display.
14
69-1012
Page 15
p
Time Temp
Ahead
Warmer
Press to program WAKE time and press to program WAKE temperature for
Back
Mon-Fri. Repeat sequence for LEAVE, RETURN, and SLEEP.
Weekend
Press until SAT SUN, WAKE and SET appear on the display. Press to program
Schedule
WAKE time and to program WAKE temperature for Sat-Sun. Repeat sequence
for SLEEP.
Temp
Warmer
Cooler
Cooler
Time
Ahead
Back
Cooling Program
With system switch at COOL, follow the same instructions as for the Heating Program.
After programming, adjust the fan and system switches, as desired. Press and release to
start the program.
Run
Program
15
69-1012
Page 16
A quick guide for operating or making changes follows:
p
NOTE: System switch must be set to Heat or Cool to perform the following.
Temp
Temporarily Change temperature
for current period only
— press ;
shows on display; canceling itself at the next scheduled change, or to cancel sooner press .
Hold a temperature indefinitely (such as when on vacation)— press , then press ;
HOLD appears on the display; to cancel, press .
Check Current Temperature Setting— press . (When using TEMPORARILY CHANGE or
Run
Program
Present
Setting
Warmer
Cooler
Hold
Temp
TEMPORARY indicator
Run
Program
Temp
Warmer
Cooler
HOLD, pressing this cancels your change.)
16
69-1012
Page 17
Check Programs— press , repeatedly to view each time and temperature; then
Run
Program
press .
Run
Program
Cancel a program— press , until program to cancel shows; then press .
Weekday
Schedule
Weekday
Schedule
Weekend
Schedule
Weekend
Schedule
Clear
Check Usage — Press for length of time heat or air conditioning has been running today
Usage
since midnight; press again for yesterday’s usage, press again for cumulative;
press to clear cumulative reading, if desired; then press .
Clear
Permanently Change a program—Repeat steps in Heating Program section or Cooling Program
section (pages 14 through 16), as applicable.
Return to normal program or start program — press .
Run
Program
Questions?
Call Honeywell
Customer Assistance
1-800-468-1502.
17
69-1012
Page 18
Step 5: Adjust Fan Operation Switch, as Required
■■ The thermostat fan operation switch,
labeled FUEL SWITCH (see illustration on
page 20) is factory-set in the F position. This
is the correct setting for most systems. If
your system is an electric heat system, set
the switch to E. The E setting allows the fan
to turn on immediately with the heating or
cooling in a system where the G terminal is
connected.
Step 6: Adjust System On-Time, °F/C°, as Required
■■ The system on-time is factory-set for a warm
air, gas or oil heating system. If you are
installing it on another type of system, adjust
the on-time accordingly by setting screws A
and B on the back of the thermostat. Use the
heating system table shown in the illustration
(page 20) as a guide. Optimize the system
on-time according to the type of system to
minimize room temperature swings. Setting
the screw
screw approximately 360° counterclockwise,
or about one complete turn.
In the unlikely event that you want a longer
system on-time, readjust screws A and/or B
as follows:
out one turn
means turning the
18
69-1012
Page 19
First, turn in both screws completely, then
adjust for system type:
• Warm Air Furnace—Set at the Hot Water
setting (A—out one turn, B—leave in).
• Electric Furnace—Leave at the Warm Air
Furnace setting (A—leave in, B—leave in).
IMPORTANT
When using a high efficiency furnace
such as a 90% or greater AFUE
(Average Fuel Utilization Efficiency)
unit, adjust screw A out one turn and
leave screw B in.
NOTE: This thermostat does not have a
setting for steam/gravity air. Cycles
would not be long enough for accurate temperature control.
■■ The thermostat is set to read the tempera-
ture in degrees Fahrenheit. If readings are
desired in degrees Celsius, adjust screw C
out one turn, as shown in illustration.
19
69-1012
Page 20
THERMOSTAT BACK
DISPLAY °F
C–IN
DISPLAY °C
C–OUT
1 TURN
FOR HIGH EFFICIENCY FURNACE (90%+ AFUE)
ADJUST: SCREW A–OUT ONE TURN
SCREW B–IN
FUEL SWITCH – F POSITION
FUEL SWITCH
F
A C
B D
E
20
ADJUST SCREWS THROUGH HOLES
TO SELECT OPERATION DESIRED
HEATING SYSTEM
WARM AIR
A–IN
FURNACE
HOT WATER
A–OUT
BOILER
1 TURN
ELECTRIC
A–IN
FURNACE
W Y G
B–IN
B–IN
B–OUT
1 TURN
FUEL SWITCH
POSITION
F
F
E
R
Rc
M8796
69-1012
Page 21
Step 7: Mount Thermostat Mounting Plate
■■ Position the mounting plate on the wall. Use
a level to make sure the mounting plate is
level. Use a pencil to mark the two
mounting holes.
■■ Remove the mounting plate from the wall,
and drill 3/16-inch holes in the 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 mounting plate over the holes,
pulling wires through the wiring opening.
Loosely insert two mounting screws into
the holes.
WALL
WIRES THROUGH
WALL OPENING
WALL ANCHORS (2)
MOUNTING
SCREWS (2)
MOUNTING
PLATE
M1718
21
69-1012
Page 22
■■ Level for appearance only; thermostat
functions properly even when not level.
Tighten the mounting screws.
LEVEL
M1714A
22
69-1012
Page 23
Step 8: Wire Thermostat Terminals
NOTE: All wiring must comply with local
codes and ordinances. If unsure
about household wiring procedures,
call your local heating/air conditioning
contractor.
Refer to masking tape labels you placed on the
wires when you removed your old thermostat.
■■ Match the letter of your old thermostat wire
with the terminal of the corresponding letter
on the back of your new thermostat. Refer
to illustrations on pages 25 and 26. Hold the
thermostat as shown to minimize need for
wire extenders. If wires are still too short,
use wire connectors (purchased locally) to
extend wires. See illustration for guidelines
on using wire extenders.
■■ In 5-wire installations only, be sure to
remove the factory-installed jumper
connecting terminals R and Rc.
METHOD TO INCREASE WIRE LENGTH
M1715A
23
WIRE NUT SIZE FOR
TWO 18-GAUGE WIRES
WIRE
FROM
WALL
6 IN. (152 MM)
OF 18-GAUGE
THERMOSTAT
WIRE. MATCH
INSULATION
COLORS
OR MARK
WIRE ENDS.
69-1012
Page 24
■■ Loosen the terminal screws and slip each
wire beneath its matching terminal. See
illustration (lower right) for wire insertion
technique. Securely tighten the terminals.
■■ Plug the hole in the wall with insulation to
help prevent drafts from adversely affecting
the thermostat operation.
JUMPER (FACTORY-
R
INSTALLED) REMOVE
IF 5-WIRE SYSTEM
R
5/16 in.
(8 mm)
STRIP
INSERT
STRAIGHT
UNDER
SCREW HEAD
c
END OF WIRE
VISIBLE HERE
WY G
M1712A
24
M3002A
69-1012
Page 25
2-WIRE HEAT-ONLY (JUMPER INTACT)
A C
B D
W Y G
JUMPER
4-WIRE HEAT/COOL (JUMPER INTACT)
A C
B D
W Y G
JUMPER
R
HEATING
RELAY OR
VALVE COIL
L1
(HOT)
L2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Rc
HEATING
RELAY OR
1
M8793
VALVE COIL
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
COOLING
CONTACTOR
COIL
FAN
RELAY
R
25
Rc
L1
(HOT)
L2
M8794
69-1012
Page 26
5-WIRE HEAT/COOL (JUMPER REMOVED)
A C
B D
W Y G
3-WIRE COOL-ONLY (JUMPER INTACT)
A C
B D
W Y G
JUMPER
R
HEATING
RELAY OR
VALVE COIL
COOLING
1 1
L1
(HOT)
CONTACTOR
COIL
FAN
RELAY
L2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Rc
L1
(HOT)
L2
M8795
26
R
COOLING
CONTACTOR
COIL
FAN
RELAY
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Rc
L1
(HOT)
L2
M8792
69-1012
Page 27
Step 9: Mount Thermostat
NOTE: To remove the thermostat from the
wall, first pull out at the bottom of the
thermostat, then remove the top.
A.
ENGAGE TABS AT TOP OF
THERMOSTAT AND MOUNTING PLATE.
B.
PRESS LOWER EDGE
OF CASE TO LATCH.
SWING OPEN COVER
C.
TO CHECK
OPERATION.
M1734A
27
69-1012
Page 28
Step 10: Check Thermostat Operation after Programming and Installing
Heating
Do
not
check heating system
operation by jumpering thermostat
terminals at the primary control
such as the gas valve, zone valve,
or oil burner control. This damages
the thermostat, instead, jumper R
and W wires at the thermostat.
Auto On
Warmer
Cooler
28
HeatCool Off
Move the system switch to HEAT
and the fan switch to AUTO.
Press key until the setting is about
10°F (6°C) above room temperature. Heating should start and the
fan should run after a short delay
(immediately if fan operation switch
is set in E position).
Press key until setting is about 10°F
(6°C) below room temperature. The
heating equipment should shut off.
69-1012
Page 29
Cooling
To avoid possible compressor
damage, do not operate the cooling
system when outside temperature
is below 50°F (10°C). See compressor manufacturer instructions for
further information.
NOTE: When cooling setting is
changed, thermostat may
delay up to five minutes
before turning on the air
conditioner. This delay
protects the compressor.
Auto On
Warmer
Cooler
Auto On
HeatCool Off
Move the system switch to COOL
and the fan switch to AUTO.
Press key until setting is about
10°F (6°C) below room temperature. The cooling equipment and
fan should start.
Press key until the setting is about
10°F (6°C) above room temperature. The cooling equipment and
fan should stop.
HeatCool Off
Move the system switch to OFF,
with the fan switch at AUTO. The
system and fan should be off.
29
69-1012
Page 30
Step 11: Set Fan and System Switches
Auto On
Auto On
First set the fan switch.
FAN AUTO: Normal setting for most homes. A
single-speed fan turns on automatically with
the air conditioner or furnace. A two-speed fan
usually runs on high with the air conditioner
and on low with the furnace.
Exception: If the fan operation switch on the
back of the thermostat is set to the
E position (see page 20), the fan
operates only with the furnace.
FAN ON: The fan runs continuously. Use for
improved air circulation during special occasions or for more efficient electronic air
cleaning. (In a heat-only system, fan runs
continuously only if the fan relay is connected
to the thermostat.)
30
69-1012
Page 31
Then set the system switch.
HeatCool Off
HeatCool Off
HeatCool Off
COOL: The thermostat controls your air
conditioning system.
OFF: Both the heating and air conditioning
systems are off.
HEAT: The thermostat controls your heating
system.
31
69-1012
Page 32
Troubleshooting Guide
If… Then…
Display will not come on. ■ Set the system switch to OFF. Remove batteries. Insert
backward for at least five seconds to reset thermostat.
Replace batteries correctly. Display should come on.
■ Make sure batteries are fresh and installed correctly.
■ Gently clean battery contacts using a soft pencil eraser.
Do not use anything abrasive on the clips.
Temperature display will not go
lower than 45°F (7°C) or higher than
88°F (31°C) during programming.
Temperature change occurs at the
wrong times.
Heating will not come on. ■ Check that the switch on the thermostat is set to HEAT.
■ You have reached the temperature setting limit. The
setting range is 45°F to 88°F (7°C to 31°C).
■ Check the program times for the period in question. Be
sure that AM and PM indications are correct. Make sure
the current day and time are correct. Reprogram if
necessary.
■ Check the system fuse or circuit breaker and replace or
reset if necessary.
■ Check for correct wiring and good connections.
32
69-1012
Page 33
Heating will not come on.
(Continued)
■ Jumper wires R and W. If heat does not come on, contact
your heating dealer.
■ If display is blank or shows
bAt Lo
, install fresh batteries.
■ If temperature setting is higher than current temperature,
and the display shows HEAT, contact Honeywell
Customer Assistance at 1-800-468-1502.
Cooling will not come on. ■ Check that the switch on the thermostat is set to COOL.
■ Check the system fuse or circuit breaker and replace or
reset if necessary.
■ Check for correct wiring and good connections.
■ Jumper wires Rc and Y. If cooling does not come on,
contact your cooling dealer.
■ If display is blank or shows
bAt Lo
, install fresh batteries.
■ The thermostat has a built-in time delay on cooling. Allow
five to ten minutes after changing the setting before the
air conditioner starts.
■ Make sure the outdoor disconnect is energized (on).
33
69-1012
Page 34
Cooling will not come on.
(Continued)
■ If temperature setting is lower than the current
temperature, and the display shows COOL, move the
system switch from COOL to OFF for ten minutes. After
ten minutes, return the switch to the COOL position. If the
air conditioner comes on, compressor may have reached
its high limit temperature protection and shut down. If the
air conditioner does not come on after the ten minutes and
the display shows COOL, contact Honeywell Customer
Assistance at 1-800-468-1502.
■ If 2- or 4-wire installation, verify R-Rc jumper is installed.
The house is too warm or too cool. ■ Press PRESENT SETTING key to check the current
temperature setting.
■ If desired, change the temperature setting. See page 16.
SYSTEM ON indicator is lit, but no
heat is coming from the registers.
■ Allow time for the furnace to heat up and the fan to come
on before checking for heat at the register. (Check to
make sure system on-time is set correctly according to
page 18 and 19.)
34
69-1012
Page 35
The furnace cycles too frequently or
the system cycle length is too short
or too long.
The thermostat's current setting
does not match the display
temperature to within ±1°.
Incorrect room temperature showing
on thermostat display.
bAt Lo
remains on display after
fresh batteries are installed.
■ Readjust system on-time according to instructions on
pages 18 and 19.
■ Check that the wiring hole in the wall behind the wallplate
was plugged with insulation to prevent drafts that might
adversely affect the thermostat operation.
■ Be aware that it is normal for the current setting and
display temperature to differ on occasion.
■ During recovery from setback or setup, setting and
display temperatures may differ for up to 30 minutes after
recovery period.
■ Make sure the hole behind the thermostat is plugged with
insulation to help prevent drafts from adversely affecting
the thermostat operation.
■ The thermostat is factory-calibrated, and cannot be
adjusted.
■ Remove the batteries. Wait one hour. Install fresh alkaline
batteries.
35
69-1012
Page 36
TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. AND CANADA
Savings for Once-A-Day
10°F (5°C) decrease
30%
28%
26%
24%
22%
20%
18%
16%
14%
12%
10%
8%
6%
Approximate percentage of energy cost savings
4%
2%
Minneapolis
St. Paul
Montreal
Ottawa
Toronto
Edmonton
Regina
Winnipeg
Calgary
Halifax Vancouver Denver
Moncton
North Bay
Quebec
St. John's
Buffalo
Cleveland
Milwaukee
Savings for Twice-A-Day
10°F (5°C) decrease*
Boston
Des Moines
Chicago
Omaha
Detroit
Salt Lake
Pittsburgh
City
Indianapolis
*Based on 10°F (5°C) decrease—(5°F [3°C] decrease
gives approximately 55 percent of these savings).
Cincinnati
Kansas City
St. Louis
Columbus
New York
Philadelphia
Seattle
Savings for 5°F (3°)
summer increase
Louisville
San
Portland
Francisco
Wash., D C
36
Dallas
Atlanta
Los Angeles
San Diego
M2416A
69-1012
Page 37
37
69-1012
Page 38
38
69-1012
Page 39
Limited One-Year Warranty
Honeywell warrants this product, excluding battery, 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 defective or malfunctions,
Honeywell shall repair or replace it (at Honeywell’s option) within a reasonable period of time.
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the retailer from which you purchased it, or
(ii) package it carefully, along with proof of purchase (including date of purchase) and a short description of the malfunction, and mail it,
postage prepaid, to the following address:
Honeywell Inc. in Canada: Honeywell Limited/Honeywell Limitée
Return Goods Department Product Services ON30
1050 Berkshire Lane 155 Gordon Baker Road
Plymouth, MN 55441-4437 North York, Ontario M2H 2C9
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 ONE YEAR 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 any questions concerning this warranty, please write our Customer Assistance Center, Honeywell Inc., P.O. Box 524, Minneapolis, MN
55440-0524 or call 1-800-468-1502, Monday-Friday, 7:00 a.m. to 5:30 p.m., Central time. In Canada, write Retail Products ON30, Honeywell
Limited/Honeywell Limitée, 155 Gordon Baker Road, North York, Ontario M2H 2C9
39
69-1012
Page 40
Home and Building Control
Honeywell Inc.
Honeywell Plaza
P.O. Box 524
Minneapolis, MN 55408-0524
Home and Building Control
Honeywell Limited-Honeywell Limitée
155 Gordon Baker Road
North York, Ontario
M2H 2C9
Helping You Control Your World
69-1012 6-96 J.S. Printed in U.S.A.
Copyright © 1996 Honeywell Inc. All Rights Reserved ® U.S. Registered Trademark
40
Printed on recycled paper containing at
least 10% post-consumer paper fibers.
69-1012
Loading...