Honeywell Chronotherm 4 Manual

							T8611G Chronotherm
®
 IV Deluxe
Programmable Heat Pump Thermostat
PRODUCT DATA
® U.S. Registered Trademark
Copyright © 1997 Honeywell Inc.   •   All Rights Reserved
APPLICATION
The T8611G Chronotherm® IV Deluxe Programmable Heat
Pump Thermostat provides electronic control of 24 Vac
single-zone heat pump systems.
FEATURES
•Full seven-day program capability; different schedules
and temperature setpoints may be selected for
everyday to match the homeowner’s flexible schedule.
•Copy key makes programming easier and faster for
the installer and homeowner.
•Daylight Savings Time (DST) key for quick change in
and out of Daylight Savings Time.
•Models available with programmable fan operation for
added homeowner comfort.
•Easy temporary temperature setpoint changes for
current period, vacation hold (1 to 255 days) or
indefinite hold adds to the homeowner comfort and
energy savings.
•Frequently used keys are located by the Liquid Crystal
Display (LCD) for quick and easy access to
information.
•Attractive styling complements any decor to the
homeowner’s delight.•Back lighting the large display makes the LCD very
easy to read.
•Models available with outdoor temperature sensor
capability for homeowner convenience. The sensor is
also more accurate than a thermometer.
•Configurable features allows one model to be used to
replace many different models (less inventory, no
longer need to carry separate models to get these
features).
— °F or °C temperature display;
— automatic or manual changeover;
— adjustable heating cycle rate.
•Minimum off time protects the equipment and extends
the equipment life.
•Easy installation, setup and system test saves
installer time and increases productivity.
•System test simplifies troubleshooting and saves time
by overriding the time delays.
•Models available with defrost control for more efficient
heat pump operation.
•Adaptive Intelligent Recovery® control brings the
room temperature to temperature setpoint at the
programmed time, maximizing comfort and energy
savings.
•Setpoints are permanently held in memory (no
batteries used) and retained during power outages for
increased installer and homeowner convenience.
•Universal Versaguard™ Thermostat guards available
for added security.
Contents
Application ........................................................................... 1
Features .............................................................................. 1
Specifications ...................................................................... 2
Ordering Information ........................................................... 2
Installation ........................................................................... 3
Wiring .................................................................................. 4
Settings ............................................................................... 6
Installer Setup ..................................................................... 7
Installer System Test ........................................................... 10
Thermostat Information ....................................................... 11
Programming ....................................................................... 12
Operation ............................................................................ 17
Troubleshooting Guide ........................................................ 19
Cross Reference ................................................................. 20
Wiring Diagrams .................................................................. 23
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							T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT
68-0165—1
2
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Relations
Honeywell, 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
this unit might not exactly match the listed
specifications. This product is tested and calibrated
under closely controlled conditions, and some minor
differences in performance can be expected if those
conditions are changed.
Thermostat Model
T8611G Thermostats provide features listed in Table 1.
Table 1. Thermostat Features.
Electrical Rating (Nominal Range):
24 Vac, 50/60 Hz.
20 to 30 Vac, 50/60 Hz.
Batteries:
No batteries required.
Auxiliary Heat and Emergency Heat Indication:
Thermostat display indicates when Auxiliary Heat or
Emergency Heat are activated.
Loss of Power:
The thermostat will maintain programmed times and
temperatures for the life of the product. The clock and day
information is retained for a minimum of 30 minutes.
Light Emitting Diodes (LEDs):
Two user-defined LEDs (select models).
Two additional LEDs available on some models.
System Current Draw:
6 VA maximum at 30 Vac, 50/60 Hz.Output Relay Load Ratings:
See Table  2.
Ta b l e 2. Maximum Amps at 30 Vac.
ChangeoverSystem
SelectionFan
Selection Comments
Automatic Em Heat-
Heat-Off-
Cool-AutoOn-Auto System and fan
selections are
done by
keyboard.
Relay Running (A)   Inrush (A)
Fan 0.5 2.5
Heat (all stages) 1.5 3.5
Cool (all stages) 1.5 7.5
Temperature:
Ratings:
Operating Ambient: 40°F to 110°F (4°C to 43°C).
Shipping: -30°F to +150°F (-34°C to +65°C).
Display Accuracy:
±1°F (±0.5°C).
Setpoint:
Range: 45°F to 95°F (7°C to 35°C).
Differential: 3°F (1.5°C).
Default Settings: see Table 3.
Table  3. Default Setpoints.
Period TimeHeat  
SetpointCool  
SetpointFan
Setting
Wake 6:00 AM 70°F (21°C) 78°F (25.5°C) Auto
Leave 8:00 AM 62°F (16.5°C) 85°F (29.5°C) Auto
Return 6:00 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
Minimum Stage Operation Time:
Minimum On (Heat and Cool) (select models): factory
setting 2 minutes; option 0 minutes.
Minimum Off (Cool and Heat Pump): factory setting
5 minutes; option 0 minutes.
Humidity Ratings:
5% to 90% RH, noncondensing.
Clock Accuracy:
±1 minute per month.
Finish:
Taupe or Premier White® color. 
						

							T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT
68-0165—1
3
Dimensions:
See Fig. 1.
Mounting Means:
The thermostat mounts on a wallplate. The wallplate mounts
horizontally on a wall or outlet box with two no. 6 x 32 screws
(included).
Accessories:
C7089B Outdoor Temperature Sensors (69-1020).
Universal Versaguard™ Thermostat  guards.
RECYCLING NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do n
ot place your old
control in the trash.
Contact your local waste management authority for
instructions regarding recycling and the proper
disposal of the old thermostat.
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 5 ft (1.5m) above the floor in an
area with good air circulation at average temperature. See
Fig. 2.
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.
Fig. 1. Dimensions of thermostat in in. (mm).
6-1/16 (154)1/2
(13)1-9/16
(40)
3-3/4
(95)
3-1/2
(89) 1-13/16
(46) 3/8 (10) 2-3/4 (70) 3-5/8 (92)
M10359 
						

							T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT
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Fig. 2. Typical location of thermostat.
Wallplate Installation
The thermostat can be mounted horizontally on the wall or on
a 2 in. x 4 in. wiring box. Position wallplate horizontally on the
wall or on a 2 in. x 4 in. wiring box.
1.Position and level the wallplate (for appearance only).
The thermostat will function properly even when not
level.
2.Use a pencil to mark the mounting holes. See Fig. 3.
WIRES 
THROUGH WALLWALL
MOUNTING 
HOLES
M10822
MOUNTING 
SCREWS
WALL
ANCHORS
(2)
5 FEET
[1.5 METERS]
YES
NO
NO
NO
M10106
Fig. 3. Mounting the wallplate.3.Remove the wallplate from the wall and drill two 3/16
inch holes in the wall (if drywall) as marked. For firmer
material such as plaster, drill two 7/32 inch 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.
WIRING
All wiring must comply with local electrical codes and
ordinances. Follow equipment manufacturer wiring
instructions when available. Refer to Fig. 15 and 16 for typical
hookups. A letter code is located near each terminal for
identification. Refer to Table 4 for terminal designations. 
						

							T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT
68-0165—1
5
Standard
Terminal
DesignationsAlternate
Terminal
Designations Typical Connection Function Terminal Type
B—Heating changeover valve Output 24V powered contact
CBa, C, X1, X2 Common Input
EKEmergency heat relay Output 24V powered contact
GFFan relay Output 24V powered contact
LA, A1, C, L, X, Z User defined Light Emitting Diodes (LEDs) Annunciation —
ORCooling changeover valve    Output 24V powered contact
O/B — Cooling or heating changeover valve
(configure in Installer Setup 29)Output 24V powered contact
OT, OT — Outdoor temperature sensor (C7089B) Input —
P—Defrost Output 24V powered contact
RV24V system or heating transformer Input —
RC — 24V cooling transformer Input —
W1 H1, R3 Stage 1 heating relay   Output 24V powered contact
W2 H2, R4, W3, Y Stage 2 heating relay or auxiliary heat relay Output 24V powered contact
X1, X2, X3, X4 A, A1, A2, C, L,
X, ZUser defined Light Emitting Diodes (LEDs) Annunciation —
Y, Y1 C1, M, Y Stage 1 compressor contactor Output 24V powered contact
aSome OEM models label the terminal for transformer common B.
Table 4. Terminal Designations and Descriptions.
CAUTION
Disconnect power before wiring to prevent electrical
shock or equipment damage.
1.Loosen the terminal screws on the wallplate and
connect the system wires. See Fig. 4
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 prevent
drafts from affecting the thermostat.
M4826
FOR WRAPAROUND
INSERTION STRIP
7/16 IN. (11 MM).FOR STRAIGHT
INSERTION STRIP
5/16 IN. (8 MM).
Fig. 4. Proper wiring technique. 
						

							T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT
68-0165—1
6
Mounting Thermostat Wallplate
The thermostat mounts on the wallplate after they are
installed.
1.Engage tabs at the top of thermostat and wallplate. See
Fig. 5.
2.Press lower edge of case to latch.
NOTE: To remove the thermostat from the wall, first pull out
at the bottom of the thermostat; then remove the top.
SETTINGS
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 System Test,
•display outdoor temperature (select models),
•set the system operation,
•set the fan operation.
See Fig. 6 for the location of the keys.
Fig. 5. Mounting thermostat on wallplate.
M10675
TWO LED 
INDICATORS
M15043
B.  PRESS LOWER EDGE OF CASE TO LATCH.
A.  ENGAGE TABS AT TOP OF THERMOSTAT AND WALLPLATE.
Fig. 6. T8611G key locations and descriptions.
M10405A
Time Set Program
System Fan Run
Program
Hold TempSet Current
Day/TimeWakeLeave
Return Sleep
DayHeat/Cool
Settings
Daylight
TimeCopy
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 TIMEINCREASE TIME SETTING
OR SCROLL FORWARD 
THROUGH INSTALLER SETUP 
AND SYSTEM TEST
DECREASE TIME SETTING OR SCROLL 
BACKWARD THROUGH INSTALLER 
SETUP AND SYSTEM TEST COPY ONE PROGRAMMED 
DAY TO ANOTHER DAYSET 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 
LED Indication
Two LED indicators are located in the upper right of the
thermostat.  They indicate when a CHECK or FAIL signal is
sent to the thermostat from the system. See Fig. 7.
Fig 7. LEDs location 
						

							T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT
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System and Fan Settings
The system default setting is Heat and the fan default setting
is Auto. Use the System and Fan keys or switches to change
the settings. See Fig. 8. The fan settings can be set for each
program period individually. The system selection is for all the
program periods.
System settings control the thermostat operation as follows:
Em Heat: Emergency heat output is controlled as Stage 1
heat. Cooling system is off. Compressor is de-
energized.
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.
INSTALLER SETUP
NOTE: For most applications, the thermostat factory
settings will not need to be changed. Review the
factory settings in Table 6 and if no changes are
necessary, go to the Installer System Test section.
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 6. The table includes all the
configuration options and the factory settings for the
thermostat.
A combination of key presses are required to use the Installer
Setup feature.
—To enter the Installer Setup, press and hold the Information
   i   key with the increase ▲ and decrease ▼ keys until the
first number is displayed. All display segments appear for
approximately three seconds before the number is
displayed. See Fig. 9 and 10.
—To advance to the next Installer Setup, press the Time ▲
▲
key.
—To change a setting, use the increase ▲ or decrease ▼
key.
—To scroll the Installer Setup numbers backwards, press the
Time ▼
▼ key.
—To exit the Installer Setup, press Run Program.
Fig. 8. T8611G System and Fan key locations.
NOTE:Always press the keys with your fingertip or similar
blunt tool. Sharp instruments like a pen or pencil
point can damage the keyboard.
Temperature Settings
Refer to Table 5 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 Programming
Section for complete instructions on changing the program.
Table 5. Default Program Settings.
M15042
Hold Temp
Run
Program
Copy Daylight
TimeSet Current
Day/Time
System Fan
Time Set Program
DaySystem
Fan
WakeLeave
ReturnSleep
Heat/Cool
Settings
Period TimeHeat  
SetpointCool  
SetpointFan
Setting
Wake 6:00 AM 70°F (21°C) 78°F (25.5°C) Auto
Leave 8:00 AM 62°F (16.5°C) 85°F (29.5°C) Auto
Return 6:00 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
Aux HtHeat
Auto
System FanOff Auto Wake Mon
Wait In
Room
Outdoor%Humid
Auto 
Sav
AM
PM Hold for
Cool
Repl Batt
On Recovery
DST
Cool TueWedThuFriSatSun
LeaveReturnSleep
M10345
Set ProgramSet Day/TimeStart TimeTemporary Setting Enrg
EmHeat
Em Ht
Fig. 9. Display of all the segments of the LCD.
Fig. 10. Display of Installer Setup number and setting.
M10404INSTALLER SETUP
NUMBER DISPLAY
(COLUMN 2
OF TABLE 6)FACTORY SETTING
OR OTHER CHOICE
DISPLAY (COLUMN 3
OR 5 OF TABLE 6) 
						

							T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT
68-0165—1
8
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 6 factory settings and mark any desired changes in the Actual
Settings column. When Installer Setup is complete, review the settings to confirm that they match the system.
Table  6. Thermostat Installer Setup Options.
(continued)
Installer  
Setup
Number
(Press Time  
▲ key toFactory-SettingOther Choices  
(Press ▲ or  ▼ key to change)
Actual
Selectchange)
Display Description Display DescriptionSetting
Not used 1 thru 4 — — — — —
Heating cycle
  56Stage 2 3, 6 or 9
3—3 cph  
6 (Not used) — — —
6—6 cph used for last stage  of
heat pump systems—
79Emergency heat 3, 6  
or 99—9 cph used for electric heat
Not used 8 thru 11 — — — — —
System setting
adjustment  12 1 Manual changeover 0 or 2 0—Auto changeover
2—Fixed auto changeover
Adaptive
Intelligent
Recovery™
control13   0 Adaptive Intelligent
Recovery™ control is
activated (system starts
early so setpoint is
reached by start of
program period)1Conventional recovery (system
starts recovery at programmed
time)—
Degree
temperature
display14 0 Temperature is  
displayed in °F1Temperature is displayed in °C
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  
heating   19   0 No extended fan
operation after the  
call for heat ends1Fan operation is extended  
90 seconds after the call for  
heat ends.
Extended fan
operation in  
cooling   20   0 No extended fan
operation after the  
call for cool ends1Fan operation is extended  
90 seconds after the call for  
cool ends.
Not used 21 thru 23 — — — — —
Outdoor
temperature
display (models
with OT
terminals)24 0 No outdoor   
temperature is
displayed1Outdoor temperature is displayed.
Needs a C7089B1000 Outdoor
Sensor to operate.
Not used 25 thru 28 — — — — —
O/B terminal
energized in
heating or cooling29 0 O/B terminal is
energized for reversing
valve in cooling1O/B terminal is energized for
reversing valve in heating 
						

							T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT
68-0165—1
9
Table  6. Thermostat Installer Setup Options (continued).
Installer  
Setup
Number
(Press Time  
▲ key toFactory-SettingOther Choices  
(Press ▲ or  ▼ key to change)
Actual
Selectchange)
Display Description Display DescriptionSetting
Deadband    30   3 Heating and cooling
setpoints can be set  
no closer than 3°F
(1.5°C)4 thru  
10Heating and cooling setpoints can
be set no closer than the chosen
value:
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 31 and 32 — — — — —
Minimum off time
for the
compressor33 5 5 minute minimum  
off time for the
compressor0 thru  
4Minimum number of minutes (0
thru 5) the compressor will be off
between calls for the compressor
Temperature
range stops in
heating34 90 Highest setpoint   
heating can be set to40 to  
89Temperature range (1°F
increments) heating setpoint  
can be set to
Temperature
range stops in
cooling35 45 Lowest setpoint   
cooling can be set to46 to  
99Temperature range (1°F
increments) cooling setpoint  
can be set to
Not used 36 — — — — —
Temperature
display
adjustment37 0 No difference in
displayed temperature
and actual room
temperature-3 thru  
31—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
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 with
these new settings. Be sure to set the current day
and time immediately.
Setting Current Day and Time
1.Press Set Current Day/Time.
NOTE: On initial power up 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.
M10312
Time Set ProgramSystem Fan Run
Program
Hold TempSet Current
Day/TimeSet Current
Day/TimeWakeLeave
Return Sleep
DayHeat/Cool
Settings
Daylight
TimeCopyMonPM
Set Day/Time
M10313
Time Set ProgramSystem Fan Run
Program
Hold TempSet Current
Day/TimeWakeLeave
Return Sleep
DayDayHeat/Cool
Settings
Daylight
TimeCopy
PM
Tue
Set Day/Time 
						

							T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT
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3.Press Time ▲
▲ or Time ▼
▼ until the current time is
displayed.
NOTE: Tapping the Set Current Day/Time will change
the time in one hour increments.
Fig. 11. Display of all the segments of the LCD.
M10314
Time Set ProgramSystem Fan Run
Program
Hold TempSet Current
Day/TimeWakeLeave
Return Sleep
Day
Time
Heat/Cool
Settings
Daylight
TimeCopy
AM
TueSet Day/Time
NOTE: If the current time is Daylight Savings Time,
press Daylight Time until DST is displayed.
M10315
Time Set ProgramSystem Fan Run
Program
Hold TempSet Current
Day/TimeWakeLeave
Return Sleep
DayHeat/Cool
Settings
Daylight
TimeDaylight
Time
Copy
AM
DST TueSet Day/Time
4.Press Run Program.
INSTALLER SYSTEM TEST
Use the Installer System Test to check the thermostat
operation. Refer to Table 7 for a list of the available system
tests.
To start the system test:
CAUTION
The minimum off time for compressors is bypassed
during the Installer System Test. Equipment damage
can occur if the compressor is cycled too quickly.
Press and hold the increase 
 ▲ 
 and 
 ▼ 
 decrease keys, at the
same time, until 10 appears. All segments of the display are
displayed for three seconds before 10 appears. See Fig. 11
and 12.
M10316
Time Set ProgramSystem Fan Run
ProgramRun
ProgramHold TempSet Current
Day/TimeWakeLeave
Return Sleep
DayHeat/Cool
Settings
Daylight
TimeCopyAuto System Fan WakeRoom
AM
DST Tue
Heat
Aux HtHeat
Auto
System FanOff Auto Wake Mon
Wait In
Room
Outdoor%Humid
Auto 
Sav
AM
PM Hold for
Cool
Repl Batt
On Recovery
DST
Cool TueWedThuFriSatSun
LeaveReturnSleep
M10345
Set ProgramSet Day/TimeStart TimeTemporary Setting Enrg
EmHeat
Em Ht
M10257ATEST NUMBER
Fig. 12. Display of test number.
Table 7. Tests Available in Installer System Test.
Refer to Table 8 for the directions and results of the specific
tests.
NOTE: Press Time ▲
▲ to advance to the next test and Time
▼ ▼ to go to the previous test. Press Run Program to
exit the system test.
Test  
Number System Test Description
10-19 Heating equipment can be turned on and off
20-29 Emergency heat 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   19Keyboard keys test
70-79 Thermostat information including date code and
software versions are displayed