Honeywell T8601D User manual

® U.S. Registered Trademark
Copyright © 2002 Honeywell • • All Rights Reserved
INSTALLATION INSTRUCTIONS
69-1413-2
T8601D Chronotherm® IV
Deluxe Zone Thermostats
APPLICATION
The T8601D Chronotherm®IV Deluxe Zone Thermostats provide programmable electronic control of 24 Vac single-
stage zoned heating and cooling system. Refer to Table 1 for a general description of the thermostats.
Table 1. Description of T8601D Thermostat.
aUse manual changeover on MiniZone zone 1.
MERCURY NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash. Dispose of properly.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of the old control.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
the instructions can damage the product or cause
a hazardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3. Installer must be a trained, experienced service
technician.
4. After completing installation, use these instructions
to check out the product operation.
Location
Install the thermostat about 1.5m (5 ft) above the floor in
an area with good air circulation at average temperature.
See Fig. 1.
Do not install the thermostat where it can be affected by:
— drafts, or dead spots behind doors and in corners.
— hot or cold air from ducts.
— radiant heat from sun or appliances.
— concealed pipes and chimneys.
— unheated (uncooled) areas such as an outside wall
behind the thermostat.
Wallplate Installation
The thermostat can be mounted horizontally on the wall
or on a 2 in. x 4 in. (50.8 mm x 101.6 mm) wiring box.
Position wallplate horizontally on the wall or on a
2 in. x 4 in. (50.8 mm x 101.6 mm) wiring box.
1. Position and level the wallplate (for appearance
only). The thermostat will function correctly even
when not level.
2. Use a pencil to mark the mounting holes.
See Fig. 2.
3. Remove the wallplate from the wall and drill two
3/16 inch (76 mm) holes in the wall (if drywall) as
marked. For firmer material such as plaster, drill
two 7/32 inch (5.56 mm) holes. Gently tap anchors
(provided) into the drilled holes until flush with the
wall.
4. Position the wallplate over the holes, pulling wires
through the wiring opening.
5. Loosely insert the mounting screws into the holes.
6. Tighten mounting screws.
Model Application Powering Method Changeover System Selection Fan Selection
T8601D2027 Zone 1 on MiniZone™
panel and MABS II or any
zone on TZ-3, EMM-3,
EMM-3U, EZ-2, or EZ-4
systems.
Requires common
wire to power supply.
Automatic or
manuala
Heat-Off-Cool-Auto On-Auto
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T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
69-1413—2 2
Fig. 1. Typical location of thermostat.
Fig. 2. Mounting the wallplate.
WIRING
All wiring must comply with local electrical codes and
ordinances. Refer to Fig. 3 and 4 for typical hookups. A
letter code is located near each terminal for identification.
CAUTION
Electrical Hazard.
Can cause electrical shock or equipment
damage.
Disconnect power before wiring.
1. Loosen the terminal screws on the wallplate and
connect the system wires. See Fig. 5.
IMPORTANT
Use 18 gauge, color-coded thermostat cable for
proper wiring.
2. Securely tighten each terminal screw.
3. Push excess wire back into the hole.
4. Plug the hole with nonflammable insulation to pre-
vent drafts from affecting the thermostat.
The two OC terminals can be wired to the TZ-3 panel for
remote operation of the Zone-A-Lone feature during the
Leave and Sleep periods. See Table 2 and the TZ-3
Installation Instructions, form 68-0223, for more
information.
Table 2. Occupied Terminal Operation.
Fig. 3. Typical wiring diagram for T8601D on zone 1
of MiniZone™ or MABS II control panels.
5 FEET
[1.5 METERS]
YES NO
NO
NO
M10106
WIRES
THROUGH WALL
WALL
MOUNTING
HOLES
M15044
MOUNTING
SCREWS
WALL
ANCHORS (2)
Mode
OC Contacts
Closed Display
Wake No None
Leave Yes None
Return No None
Sleep Yes None
OGB CWRYOCOCOTOT
O1
T8
G1
T7
B1
T6
E1
T5
T4
M1
THERMOSTAT
CHANGEOVER
CONTROL
OUTDOOR
TEMPERATURE
SENSOR
ZONE 1
M12182
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T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
3 69-1413—2
Fig. 4. Typical wiring diagram for T8601D TotalZone®,
EMM-3, EMM-3U, EZ-2, EZ-4 control panels.
Fig. 5. Correct wiring technique.
Mounting Thermostat
1. Engage tabs at the top of the thermostat and wall-
plate. See Fig. 6. Be sure to align subbase pins to
avoid damage to thermostat.
2. Press lower edge of case to close and latch.
NOTE: To remove the thermostat from the wall, first pull
out at the bottom of the thermostat; remove top
last.
Fig. 6. Mounting thermostat on wallplate.
OGB C Y RWOCOCOT
W2 L G Y R W M6 M4 M1
OT
THERMOSTAT
TotalZone® PANEL THERMOSTAT CONNECTIONS
C7089B
OUTDOOR
TEMPERATURE
SENSOR
(OPTIONAL)
M12183A
TO OC ON TZ-3
(USE ON ZONE 1
THERMOSTAT ONLY)
TO OC ON TZ-3
1
1
O,B AND STAGE JUMPER MUST BE CONFIGURED FOR TZ-3.
M4826
FOR WRAPAROUND
INSERTION STRIP
7/16 IN. (11 MM).
FOR STRAIGHT INSERTION
STRIP 5/16 IN. (8 MM).
M14634
PRESS LOWER
EDGE OF CASE
TO LATCH.
ENGAGE TABS
AT TOP OF
THERMOSTAT
AND WALLPLATE.
A.
B.
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T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
69-1413—2 4
Using Thermostat Keys
The thermostat keys are used to:
• set current day and time,
• program times and setpoints for heating and cooling,
• temporarily override program temperatures,
• display present setting,
• configure Installer Setup,
• check Self-Test,
• display outdoor temperature (select models),
• set the system operation,
• set the fan operation.
NOTE: Always press the keys with your fingertip or
similar blunt tool. Sharp instruments like a pen
or pencil point can damage the keyboard.
See Fig. 7 for the location of the keys.
Fig. 7. T8601D key locations and descriptions.
SETTINGS
System and Fan Settings
The system default setting is Heat and the fan default
setting is Auto. Use the System and Fan keys to change
the settings. See Fig. 7. The fan settings can be set for
each program period individually. The system selection is
for all the program periods.
System settings control thermostat operation as follows:
Heat: The thermostat controls the heating.
Off: Both the heating and cooling are off.
Cool: The thermostat controls the cooling.
Auto: The thermostat automatically changes between
heating and cooling operation, depending on the
indoor temperature.
Fan settings control the system fan as follows:
On: Fan operates continuously.
Auto: Fan operates with equipment.
Temperature Settings
Refer to Table 2 for the default program. If the daytime
energy savings period is not used, press the period key
(Leave or Return) until the time is blank. The fan setting
feature is available on select thermostat models. See
Owner’s Guide, form number 69-1400, for complete
instructions on changing the program.
Table 3. Default Program Settings.
INSTALLER SETUP
NOTE: For most applications, the thermostat factory-
settings will not need to be changed. Review
the factory settings in Table 2 and if no changes
are necessary, go to the Installer Self-Test
section.
M14624
Time Set Program
System Fan
Run
Program
Hold Temp
Set Current
Day/Time Wake Leave Return Sleep
Day Heat/Cool
Settings
Daylight
Time Copy
INCREASE TEMPERATURE
SETTING OR SCROLL
FORWARD THROUGH
INSTALLER SETUP OPTIONS
DECREASE TEMPERATURE
SETTING OR SCROLL
BACKWARD THROUGH
INSTALLER SETUP OPTIONS
DISPLAY INFORMATION
SUCH AS PRESENT
SETTINGS AND OUTDOOR
TEMPERATURE
RETURN TO
NORMAL
OPERATIONS
ENTER
INDEFINITE
OR TIMED
HOLD MODE
SET CURRENT
DAY AND TIME
SET CURRENT OR
PROGRAM DAY
CHANGE BETWEEN
DAYLIGHT SAVINGS
AND STANDARD TIME
INCREASE TIME SETTING
OR SCROLL FORWARD
THROUGH INSTALLER SETUP
A
ND SYSTEM TEST
DECREASE TIME SETTING OR
SCROLL BACKWARD THROUGH
INSTALLER SETUP AND SYSTEM TEST
COPY ONE PROGRAMMED
DAY TO ANOTHER DAY
SET WAKE TIMES
AND SETPOINTS
CHANGE BETWEEN
HEATING AND COOLING
SETPOINTS
SET LEAVE TIMES
AND SETPOINTS
SET RETURN TIMES
AND SETPOINTS
SET SLEEP TIMES
AND SETPOINTS
SELECT SYSTEM
OPERATION
SELECT FAN
OPERATION
Period Time
Heat
Setpoint
Cool
Setpoint
Fan
Setting
Wake 6:00 AM 70°F
(21°C)
78°F
(25.5°C)
Auto
Leave 8:00AM 62°F
(16.5°C)
85°F
(29.5°C)
Auto
Return 5:00 PM 70°F
(21°C)
78°F
(25.5°C)
Auto
Sleep 10:00 PM 62°F
(16.5°C)
82°F
(28°C)
Auto
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T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
5 69-1413—2
The Installer Setup is used to customize the thermostat
to specific systems. Some of the options include
temperature display, changeover, and outdoor
temperature display. Installer Setup numbers are listed in
Table 3. The table includes all the configuration options
and the factory settings for the T8601.
A combination of key presses are required to use the
Installer Setup feature:
— To enter the installer setup, press and hold the
information ikey with the increase sand decrease t
keys until the first number is displayed. All display
segments appear for approximately three seconds
before the number is displayed. See Fig. 8 and 9.
— To advance to the next Installer Setup, press the Time
∆key.
— To change a setting, use the increase sor
decrease t key.
— To scroll the Installer Setup numbers backward, press
the Time ∇key.
— To exit the Installer Setup, press Run Program.
Fig. 8. Display of all LCD segments.
.
Fig. 9. Display of Installer Setup number and setting.
CAUTION
Electric Heat System Configuration Hazard.
Can cause equipment damage.
Configure electrical heat system to 1 in Installer
Setup number 2 to prevent system running
without fan.
IMPORTANT
Only configurable numbers are shown on the
device. Example: If thermostat does not have a
system key, Installer Setup Number 12 will not
be displayed. Review Table 3 factory-settings
and mark any desired changes in the Actual
Setting column. When Installer Setup is com-
plete, review the settings to confirm that they
match the system.
M14559
Aux Ht
Set Day/TimeSet Program
Mon
Wake Leave Return Sleep
OutdoorRoom
Filter
Wait System
Fan
Em Heat
On
Auto
Off
Cool
Auto
AM
PM
Hold for
Heat Cool
Repl Batt
Recovery
DST
Tue Wed Thu Fri Sat Sun
Days
Temporary Setting
Em Ht
M14618
INSTALLER SETUP
NUMBER DISPLAY
(COLUMN 2 OF TABLE 3)
FACTORY SETTING OR OTHER
CHOICE DISPLAY (COLUMN 3
OR 5 OF TABLE 3)
Table 4. Thermostat Installer Setup Options.
Select
Installer Setup
Number (Press
Time ∆key to
change)
Factory Setting
Other Choices
(Press sor tkey to change)
Actual
SettingDisplay Description Display Description
Not Used. 1 — — — — —
Fan operationa2 0 Conventional
applications where
equipment controls
fan operation in
heat mode.
1 Heat pump or electric heat
applications where
thermostat controls fan
operation in heat mode.
Not Used. 3 — — — — —
Heating cycle
rate.
4 6 6—6 cph used for
conventional heat.
1, 3 or 9 1—1 cph used for radiant
floor heat, gravity system
3—3 cph used for hot water
systems or high
efficiency furnaces
9—9 cph used for electric
heat systems
Not Used. 5 thru 11 — — — — —
System setting
adjustmenta
12 1 Manual
changeover
0 or 2 0—Auto changeover
2—Fix auto changeover
Adaptive
Intelligent
Recovery™
control.
13 0 Adaptive Intelligent
Recovery™
control is activated
(system starts
early so setpoint is
reached by start of
program period).
1 Conventional recovery
(system starts recovery at
programmed time).
—
Degree
temperature
display
14 0 Temperature is
displayed in °F
1 Temperature is displayed
in °C
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T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
69-1413—2 6
Not Used. 15 — — — — —
Clock format. 16 0 12-hour clock
format.
1 24-hour clock format.
Not Used. 17 and 18 — — — — —
Extended fan
operation in
heatinga
19 0 No extended fan
operation after the
call for heat ends.
1 Fan operation is extended
90 seconds after the call for
heat ends.
Extended fan
operation in
coolinga
20 No extended fan
operation after the
call for cool ends.
1 Fan operation is extended
90 seconds after the call for
cool ends.
Not Used. 21 thru 23 — — — — —
Outdoor
temperature
displaya
24 0 No outdoor
temperature is
displayed.
1 Outdoor temperature is
displayed. Needs a
C7089B1000 Outdoor
Temperature Sensor to
operate.
Not Used. 25 thru 29 — — — — —
Deadband 30 3 Heating and
cooling setpoints
can be set no
closer than 3°F
(1.5°C).
3 thru 10 Heating and cooling
setpoints can be set no
closer than the chosen
value:
2—2°F (1°C)
4—4°F (2°C)
5—5°F (2.5°C)
6—6°F (3°C)
7—7°F (3.5°C)
8—8°F (4°C)
9—9°F (4.5°C)
10—10°F (5°C)
Not Used. 31and 32 — — — — —
Minimum off
time for the
compressor.
33 5 5 minute minimum
off time for the
compressor.
0 thru 4 Minimum number of minutes
(0 thru 5) the compressor is
off between calls for the
compressor.
Temperature
range stops in
heating.
34 90 Highest heating
setpoint setting.
40 to 89 Temperature range (1°F
increments) heating setpoint
can be set to.
Temperature
range stops in
cooling.
35 45 Lowest cooling
setpoint setting.
46 to 99 Temperature range (1°F
increments) cooling setpoint
can be set to.
System on
indicator
(flame=heat,
snowflake=
cool) is
displayed.a
36 0 LCD On symbol is
displayed when
system is
energized.
1 Display is disabled.
a Available on select models.
Table 4. Thermostat Installer Setup Options. (Continued)
Select
Installer Setup
Number (Press
Time ∆key to
change)
Factory Setting
Other Choices
(Press sor tkey to change)
Actual
SettingDisplay Description Display Description
69-1413-2.fm Page 6 Wednesday, July 13, 2005 10:07 AM

T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
7 69-1413—2
IMPORTANT
Review the settings to confirm that they match
the system. Press Run Program to exit the
Installer Setup. The thermostat has saved the
Installer Setup changes and initiated a reset in
order to operate using the new settings. Be sure
to set the current day and time immediately.
Temperature
display
adjustment.
37 0 No difference in
displayed
temperature and
actual room
temperature.
-3 thru 3 1—Display adjusts to 1°F
higher than actual room
temperature.
2—Display adjusts to 2°F
higher than actual room
temperature.
3—Display adjusts to 3°F
higher than actual room
temperature.
-1—Display adjusts to 1°F
lower than actual room
temperature.
-2—Display adjusts to 2°F
lower than actual room
temperature.
-3—Display adjusts to 3°F
lower than actual room
temperature.
Furnace Air
Filter Timer.
43 2 30 days (System
run time)
0, 1, 3, 4 0 – off
1 – 10 days
3 – 60 days
4 – 120 days
(Time is counted when heat,
cool or fan running.)
Humidifier Pad
Monitor.
44 0 Off 1, 2, 3 1 – 90 days
2 – 180 days
3 – 365 days
(Time is counted by calendar
days in heat mode.)
Ultraviolet (UV)
Air Treatment
System Lamp
Monitor.
45 0 Off 1 1 – 365 days
(Time is counted by calendar
days in any mode.)
Table 4. Thermostat Installer Setup Options. (Continued)
Select
Installer Setup
Number (Press
Time ∆key to
change)
Factory Setting
Other Choices
(Press sor tkey to change)
Actual
SettingDisplay Description Display Description
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T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
69-1413—2 8
Setting Current Day and Time
1. Press Set Current Day/Time.
NOTE: On initial powerup or after an extended power
loss, 1:00 pm flashes on the display until a key
is pressed.
2. Press Day until the current day is displayed.
NOTE: Sun=Sunday, Mon=Monday,
Tue=Tuesday, Wed=Wednesday,
Thu=Thursday, Fri=Friday, Sat=Saturday.
3. Press Time ∆or Time ∇until the current time is dis-
played.
NOTE: Tapping the Set Current Day/Time changes the
time in one-hour increments.
NOTE: If the current time is Daylight Savings Time,
press Daylight Time until DST is displayed.
4. Press Run Program.
View or Reset Timer Settings
When the thermostat activates a timer, the thermostat
flashes Filter until the timer resets.
1. Reset the timer by pressing the ikey until the
expired timer is displayed.
2. Press the Time ∆ key to reset the timer.
3. Press the Run Program key.
NOTE: You can view the number of days remaining at
any time by pressing the i key three or four
times. If more than one timer is active, all active
timers show sequentially when pressing the
i key several times.
INSTALLER SYSTEM TEST
Use the Installer System Test to check the thermostat
operation. Refer to Table 5 for a list of the available
system tests.
CAUTION
Equipment Damage Hazard.
Minimum compressor off-time is bypassed
during Installer System Test.
Avoid cycling compressor quickly.
To start the system test:
Press and hold the increase sand decrease tkeys at the
same time until 10 appears. All segments of the display
will be displayed before the 10 appears.
See Fig. 11 and 12.
Table 5. Tests Available In Installer System Test.
M14619
Time Set Program
System Fan
Run
Program
Hold Temp
Set Current
Day/Time
Set Current
Day/Time
Wake Leave Return Sleep
Day Heat/Cool
Settings
Daylight
Time Copy
Set Day/Time
Mon
PM
M14620
Time Set Program
System Fan
Run
Program
Hold Temp
Set Current
Day/Time Wake Leave Return Sleep
Day
Day Heat/Cool
Settings
Daylight
Time Copy
Set Day/Time
PM
Tue
M14621
Time Set Program
System Fan
Run
Program
Hold Temp
Set Current
Day/Time Wake Leave Return Sleep
Day
Time
Heat/Cool
Settings
Daylight
Time Copy
Set Day/Time
AM
Tue
M14622
Time Set Program
System Fan
Run
Program
Hold Temp
Set Current
Day/Time Wake Leave Return Sleep
Day Heat/Cool
Settings
Daylight
Time
Daylight
Time
Copy
Set Day/Time
AM
DST
Tue
M14623
Time Set Program
System Fan
Run
Program
Run
Program Hold Temp
Set Current
Day/Time Wake Leave Return Sleep
Day Heat/Cool
Settings
Daylight
Time Copy Wake
Room
System
Fan
Heat
Auto
AM
DST
Tue
Test
Number System Test Description
10-19 Heating equipment can be turned on and off.
30-39 Cooling equipment can be turned on and off.
40-49 Fan equipment can be turned on and off.
60 0 to
60 19
Keyboard keys test.
70-79 Thermostat information including date code
and software versions are displayed.
M20243
Filter Days
M20244
Filter Days
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T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
9 69-1413—2
Fig. 10. Display of all LCD segments. Fig. 11. Display of test number.
Refer to Table 6 for the directions and results of the
specific tests.
NOTE: Press Time ∆to advance to the next test and
Time ∇to go back to the previous test. Press
Run Program to exit the system test.
Table 6. Installer System Test Options.
NOTE: Press any key and the displayed numbers change. Press Time ∇to go to the previous test and Time ∆to go to
the next test. The Run Program key does not exit this test. Press Time ∆or Time ∇and then the Run Program
key to exit.
M14559
Aux Ht
Set Day/TimeSet Program
Mon
Wake Leave Return Sleep
OutdoorRoom
Filter
Wait System
Fan
Em Heat
On
Auto
Off
Cool
Auto
AM
PM
Hold for
Heat Cool
Repl Batt
Recovery
DST
Tue Wed Thu Fri Sat Sun
Days
Temporary Setting
Em Ht
M14612
Keys to
Press
Test
Number Description
Heating Equipment Self-Test
Time ∆10 Enter heating equipment self-test.
s11 Heat comes on. When Installer Setup number 2 is 1, the system fan is also energized.
t10 Heat and system fan turn off.
Cooling Equipment Self-Test
Time ∆30 Change from heating to cooling equipment self-test.
s31 Cool and system fan come on.
t30 Cool and system fan turn off.
Fan Equipment Self-Test
Time ∆40 Change from cooling to fan equipment self-test.
s41 Fan comes on.
t40 Fan turns off.
Key Operation Self-Test
Time ∆60 Change from fan to key operation self-test.
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T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
69-1413—2 10
THERMOSTAT INFORMATION
1. Press the Time ∆key to access the thermostat
information.
2. Press the increase skey to display the production
date code. The first two large digits are the month
and the third digit is the last digit of the year.
(Example: 027 = February 1997).
3. Press the increase skey again to display the soft-
ware identification code. (Example: 02 = software
ID code 2).
4. Press the increase skey again to display the soft-
ware revision number. (Example: 001 = Revision
number 1).
5. Press the increase skey again to display the
EEPROM identification code. (Example: 314 =
EEPROM ID 314).
6. Press the Run Program key to exit the system test.
The system test times out after four minutes
without any key presses.
CHECKOUT
Outdoor Temperature Sensor
(Select Models)
Allow the outdoor temperature sensor to absorb the
outdoor air for a minimum of five minutes before taking a
reading.
M14613
M14614
M14615
M14616
M14617
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T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
11 69-1413—2
TROUBLESHOOTING GUIDE
Table 7. Troubleshooting Guide.
Symptom Possible Cause Action
Display does not
come on.
Thermostat is not being
powered.
• Check for 24 Vac between R and C terminals.
— If missing 24 Vac:
— verify that thermostat is correctly wired to the zone con-
trol panel.
— R on the thermostat to R on the TZ-3 and C to M1.
— R on the thermostat to R on the EMM-3U and C to C.
— verify the wiring between thermostat and zone control
panel.
— replace any broken wires and tighten any loose
connections.
— If 24 Vac is present, proceed with troubleshooting
Thermostat is not fully
connected to wallplate.
Verify that thermostat is correctly positioned and securely
latched to wallplate.
Temperature
display is incorrect.
Room temperature display has
been reconfigured.
Enter Installer Setup number 37 and reconfigure the display.
Thermostat is configured to °F
or °C display.
Enter Installer Setup number 14 and reconfigure the display.
Bad thermostat location. Relocate the thermostat.
Temperature
settings do not
change. (Example:
Cannot set the
heating higher or
the cooling lower.)
The upper or lower temperature
limits were reached.
Check the temperature setpoints:
• Heating limits are 40 to 90°F (7 to 31°C).
• Cooling limits are 45 to 99°F (9 to 37°C).
The setpoint temperature range
stops were configured.
Check Installer Setup numbers 34 and 35 and reconfigure the
setpoint stops.
Heating or cooling
does not come on.
No power to the thermostat • Check for 24 Vac between R and C terminals.
— If missing 24 Vac:
— verify that thermostat is correctly wired to the zone con-
trol panel.
— R on the thermostat to R on the TZ-3 and C to M1.
— R on the thermostat to R on the EMM-3U and C to C.
— verify the wiring between thermostat and zone control
panel.
— replace any broken wires and tighten any loose
connections.
— If 24 Vac is present, proceed with troubleshooting
Thermostat minimum off time is
activated.
Wait up to five minutes for the thermostat to respond.
Enter Installer Setup number 33.
Reconfigure the minimum off time, if required.
System selector is set to off. Verify that the system selector is set for Heat, Cool or Auto.
Thermostat is not calling for
heat or cool.
Verify that the heat or cool icon (flame or snowflake) is present.
If not, raise or lower the setpoint to make a call for cool or heat.
System on indicator
(flame=heat,
snowflake=cool) is
displayed, but no
warm or cool air is
coming from the
registers.
Thermostat is not wired
correctly to the zone panel.
Verify wiring. Check if other zones can bring on the heat or cool.
Zone panel is not correctly
configured or wired properly.
If no zones can bring on the heat, verify equipment configuration
and wiring.
Outdoor
tempera-ture is not
displayed.
Option not activated. Enter Installer Setup number 24 and set to 1. Thermostat must
have OT terminals and a C7089B1000 installed.
Outdoor
temperature display
is incorrect.
Outdoor sensor is connected
incorrectly.
Refer to C7089B1000 Installation Instructions and check wiring
between the thermostat and sensor.
Wrong sensor. Replace sensor with C7089B1000 Sensor.
aAvailable on select models.
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69-1413—2 G.H. Rev. 12-02 www.honeywell.com/yourhome
T8601D CHRONOTHERM® IV DELUXE ZONE THERMOSTATS
Automation and Control Solutions
Honeywell Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario
M1V 4Z9
69-1413-2.fm Page 12 Wednesday, July 13, 2005 10:07 AM