Honeywell TH8110U User Manual

Page 1
TH8110U Touch Screen
Programmable Thermostats
INSTALLATION INSTRUCTIONS

APPLICATION

The TH8110U Universal Programmable Thermostats provide electronic control of 24 Vac heating and cooling systems or 750 mV heating system. See Table 1 for a general description.
Table 1. TH811 Thermostats Description.
Model
TH8110U Batteries or
RECYCLE 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

Power
Method Changeover System Selection Fan Selection Comments
common wire
Automatic or manual selectable
Heat-Off-Cool-Auto On-Auto-Circ System and Fan
NO
NO
selection vary based on system type
NO
YES
5 FEET
[1.5 METERS]

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 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.

Selecting Location

Install the thermostat about 5 ft. (1.5m) above the floor in an area with good air circulation at average temperature. See Fig. 1.
® U.S. Registered Trademark Copyright © 2004 Honeywell International Inc. • • All Rights Reserved
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.
M19925
Fig. 1. Selecting thermostat location.
69-1700
Page 2
TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS
CO
L
SC
S
H
UMP
S1
2
C
G
C

Installing Wallplate

CAUTION
Electrical Hazard. Can cause electrical shock or equipment damage.
Disconnect power before wiring.
The thermostat can be mounted horizontally on the wall or on a 4 in. x 2 in. (101.6 mm x 50.8 mm) wiring box.
1. Position and level the wallplate (for appearance only).
2. Use a pencil to mark the mounting holes.
WALL
WIRES THROUGH WALL AND WIRE SLOT
WALL ANCHORS (2)
MOUNTING HOLES
MOUNTING SCREWS (2)
Fig. 2. Mounting wallplate.
3. Remove the wallplate from the wall and, if drywall,
drill two 3/16-in. holes in the wall, as marked. For firmer material such as plaster, drill two 7/32-in. 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. See Fig. 2.
5. Insert the mounting screws into the holes and tighten.
M19916
3. Securely tighten each screw.
4. Push excess wire back into the hole.
5. Plug the hole with nonflammable insulation to
prevent drafts from affecting the thermostat.
EAT P NVENTIONA
Y2
L
E
AUX
S1
S2
Fig. 3. Selecting terminal identifications for
Table 2. Selecting Terminal Identifications for
W2
S
system type.
System Type.
System Type
R
W
Y
REW TERMINAL
Wallplate
Terminal
Identifications
RC
R
O/B
Y
G
C
M19951
Wiring
Diagram
Reference
Standard Heat/Cool Conventional 5, 6
Heat Only Conventional 7
Heat Only with Fan Conventional 8
Heat Only Series 20 Conventional 9
Cool Only Conventional 10
Heat Pump with No Auxiliary Heat
Heat Pump 11

WIRING (FIG. 5-11)

All wiring must comply with local electrical codes and ordinances.
1. Select set of terminal identifications (Table 2) that corresponds with system type (conventional or heat pump) in Fig. 3.
2. Loosen the screws for the appropriate system type selected; see Table 2. Insert wires in the terminal block under the loosened screw. See Fig. 4.
69-1700 2
Fig. 4. Inserting wires in terminal block.
IMPORTANT
Use 18 gauge thermostat wire.
M19917
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TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS
CONVENTIONAL
RC
Y2
W2 S1
S2
3
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
FACTORY INSTALLED JUMPER.
3
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.
Fig. 5. Typical hookup of conventional single-stage
heat and cool system with single transformer
Y2
W2 S1
S2
3
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
REMOVE FACTORY INSTALLED JUMPER.
3
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.
2
R
W
Y
G
C
CONNECTION
FAN
RELAY
COMPRESSOR
CONTACTOR
HEAT RELAY
(1H/1C conventional).
CONVENTIONAL
RC
2
R
W
Y
G
C
CONNECTION
FAN
RELAY
COMPRESSOR
CONTACTOR
HEAT RELAY
OPTIONAL
24 VAC
COMMON
OPTIONAL
24 VAC
COMMON
M19895
M19896
CONVENTIONAL
RC
1
R
C
Y2
W2 S1
S2
3
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
FACTORY INSTALLED JUMPER.
3
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.
Fig. 7. Typical hookup of heat-only system
Y2
1
R
C
1
C
R
OUTDOOR/INDOOR
1
2
3
W2 S1
S2
3
TEMPERATURE
SENSOR
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
FACTORY INSTALLED JUMPER.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.
Fig. 8. Typical hookup of heat only system with fan
2
R
W
Y
G
C
HEAT RELAY
(1H conventional).
CONVENTIONAL
RC
2
R
W
Y G C
FAN
RELAY
HEAT RELAY
(1H conventional).
CONNECTION
OPTIONAL
24 VAC
COMMON
OPTIONAL
24 VAC
COMMON
CONNECTION
1
R
C
M19897
1
R
C
M19898
Fig. 6. Typical hookup of conventional single-stage
heat and cool system with two transformers
(1H/1C conventional).
3 69-1700
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TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS
CONVENTIONAL
RC
Y2
W2 S1
S2
3
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
FACTORY INSTALLED JUMPER.
3
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.
2
R
W
Y
G
C
W BR
SERIES 20
MOTOR OR
TR
TR
1
VALVE
M19899
Fig. 9. Typical hookup of heat only Series 20 system.
HEAT PUMP
Y2
L
E
AUX
S1
S2
4
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
1
FACTORY INSTALLED JUMPER.
2
"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SETUP.
3
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS.
4
WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.
R
C
CONVENTIONAL
RC
Y2
W2 S1
S2
3
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
FACTORY INSTALLED JUMPER.
3
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.
Fig. 10. Typical hookup of cool only system
RC
2
R
O/B
3
2
R
W
Y G C
FAN
RELAY
COMPRESSOR
CONTACTOR
(1C conventional).
1
OPTIONAL
CONNECTION
R
C
Y
G
OPTIONAL
24 VAC
C
COMMON
CONNECTION
FAN RELAY
CHANGEOVER
VALVE
COMPRESSOR
24 VAC
COMMON
M19903
1
R
C
M19900
Fig. 11. Typical hookup of single-stage heat pump with no auxiliary/backup heat (1H/1C heat pump).

Powering the Thermostat

There are two different ways to power the thermostat:
• Batteries (three AAA alkaline).
• 24 Vac Common wire.
Wiring 24 Vac Common
Wire the common side of the transformer to the C screw of the thermostat wallplate. When installing in a single transformer system, keep jumper wire between the R and Rc screws. When installed in a two-transformer
69-1700 4
system, use the common from the cooling transformer to connect to C screw and remove the jumper wire between the R and Rc screws.
Inserting Batteries (Optional)
If not using a 24 Vac Common to power the thermostat, install three AAA alkaline batteries (included) in the back of the thermostat. Make sure the positive and negative terminals are oriented correctly, as marked on the device. See Fig.12.
Page 5
TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS
E
MON
UE
THUSASUN
E
MON
THUSASUN
CHANGE FILTER UV LAMP HUMIDIFIER PAD
OK TO PICK MULTIPLE DAYS SCREEN LOCKED
USE ARROWS TO SET YEAR AND TIME
R
U
BATTERIES (3)
M19918
Fig. 12. Installing batteries on thermostat back.

Mounting the Thermostat

1. Align the terminal screw blocks with the pins on the back of the thermostat.
2. Push the thermostat straight onto the wallplate. See Fig. 13.
WALL
REMOVE TAB TO ACTIVATE REAL TIME CLOCK
INSTALLATION
REMOVE DURING
INSTALLATION
REMOVE DURING
M19920
Fig. 14. Removing tab to activate real-time clock.
This thermostat is designed to automatically keep current time and day in memory for up to ten years under normal use after calendar is set. When thermostat is first powered, display is ready to enter calendar date (Fig.15).
SET CURRENT DAY SET MONTH
T
DON
INSTALLATION
REMOVE DURING
Fig. 13. Mounting thermostat on wallplate.

Adjusting Real-Time Clock

Setting Calendar and Time
Locate and remove the tab labeled Remove in the lower left corner on the thermostat back. The tab must be removed to activate the real-time clock. See Fig. 14.
M19919
DON
M19921
Fig. 15. Setting calendar and time after initial
IMPORTANT
The tab on back of thermostat in lower-left corner must be removed to activate this feature.
powerup.

Using the Thermostat

The thermostat has a touch screen interface. Words or symbols appear, highlighting keys, as needed, to complete tasks. Press keys with your fingertips. Sharp tips on pens or pencils can damage thermostat.
1. Use arrow keys to set Year, Month and Day (see Fig. 15).
2. Press Done key.
3. Use arrow keys to set current time. See Fig. 15.
4. Press Done key.
5 69-1700
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TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS
E
MON
UE
THUSASUN
SYSTEM
OFF
COOL
g
Schedule
de
Se
o
DONE
MON
THUSASUN
A

OPERATION

System and Fan Settings

The System default setting is Heat and the Fan default setting is Auto.
SYSTEM Settings
Heat: Thermostat controls heating system. Off: Both heating and cooling are off. Cool: Thermostat controls cooling system. Auto: Thermostat automatically changes between heating and cooling systems, depending on indoor temperature. (See Installer Setup section.)
FAN Settings
The Fan setting can be programmed into the thermostat schedule for each period (Wake, Leave, Return, Sleep). See the Owners’ Guide for additional information.
Preprogrammed Settings
Table 3 shows the default program settings. See Owners’ Guide for complete instructions on changing the program.
Table 3. Default Program Settings.
70 (21
62 (16.5
70 (21
62 (16.5
Setpoints
°
F
°
C)
°
F
°
C)
°
F
°
C)
°
F
°
C)
°
78 (25.5
°
85 (29.5
°
78 (25.5
°
82 (28
Fan
SettingHeat Cool
Auto
F
°
C)
Auto
F
°
C)
Auto
F
°
C)
Auto
F
°
C)
Schedule
Period Time
Wake 6:00AM
Leave 8:00AM
Return 6:00PM
Sleep 10:00PM

Entering Installer Setup

1. Thermostat must be powered either with Alkaline AAA batteries or with 24 Vac Common wire.
2. From the home screen, press System key. (Press Done or Cancel key to return to home screen.)
3. Five blank touch keys show on the bottom of the screen between the Done and Cancel keys. Press and hold the two blank keys on either side of the center blank key for approximately five seconds until screen changes. See Fig. 16.
T
Insi
DON
Fig. 16. Entering Installer Setup.
4. The Installer Setup Number is displayed in the
lower left. It is a four-digit code beginning with zero. The factory setting or other choice selection is dis­played in the lower right. See Fig. 17. This is a two­digit code shown in the Option column of Table 4.
INSTALLER SETUP NUMBER
t T
Followin
CANCEL
ADVANCE TO NEXT INSTALLER SETUP
FACTORY SETTING
M19923

INSTALLER SETUP

This Universal Thermostat works with many different system types. To operate correctly, the thermostat must be set up to operate the installed heating and/or cooling system.

Installer Setup Menus

Main Menu: Offers the most commonly used options.
It is necessary to enter this menu to set the thermostat to the type of system it is operating. Many applications use only the Main Menu.
Regional Menu: Offers choices often changed due to a particular area or region. For example, temperature display in Fahrenheit or Celsius is offered in this menu.
Advanced Settings Menu: Offers more settings to fully customize the thermostat. Many of these settings do not require changing from the factory settings.
69-1700 6
PRESS TO EXIT INSTALLER SETUP
Fig. 17. Installer Setup Number and factory setting
selection locations.
CHANGE THE FACTORY SETTING
M19922

Changing Installer Setup Selections

1. Advance to the next Installer Setup Number by pressing the up and down arrow keys to the right of the four-digit Installer Setup Number. See Fig. 17.
2. Change the factory Setting Options by pressing the up and down arrow keys right of the two-digit code selection. See Fig. 17.
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TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS

Exiting Installer Setup

1. Press Done key to exit Installer Setup screen.
Table 4. Main Installer Setup Menu.
Factory Setting Other Choices
Installer
Select
Not used. 1 thru 0099 —
Date (Year Upper)
Date (Year Lower)
Date (Month) 0140 6 Digit(s) represents
Date (Day)
Schedule Options
System Type Selection
Fan Operation 0180 0 Conventional
Reversing Valve (O/B) Operation
Setup
Number
0120 20 Set first two digits of
0130 04 Represents last two
0150 15 Digit(s) represents
0160 4 7-day programming 0 0 —nonprogrammable
0170 1 1 Heat/1 Cool
0190 0 O/B terminal is
current calendar year (20 for year 2005, etc)
digits of current calendar year (2004).
current calendar month.
current calendar date.
Conventional System
applications where equipment controls fan operation in heat mode.
energized for reversing valve in cooling
IMPORTANT
The three Installer Setup Menus (Tables 4-6) show all available options. These options cus­tomize themselves as you make selections to Installer Setup. So not all Installer Setup Selections are shown or are available to change.
21 21 —first two digits of
00 -99 Select last two digits of
1-12 Select number that
1-31 Select number that
1-6 1—1 heat/1 cool
1 Heat pump or electric heat
1 O/B terminal is energized for
current calendar year (21xx)
current calendar year.
represents current calendar month.
represents current calendar date.
2—single-stage heat pump (no aux. heat) 3—heat only (no fan) 4 —heat only (with fan) 5—hot water Series 20 (3-wire or normally open zone valves) 6—cool only
applications where thermostat controls fan operation in heat mode.
reversing valve in heating
CommentsOption Description Options Description
2000 -2178 available
2001-2178 available
Available options and defaults vary by thermostat. System selection automatically modifies some default settings and/or hides other Installer Setup options.
Only shown if conventional system is selected. If heat pump is chosen, fan defaults to electric.
Only shown if heat pump system is chosen.
7 69-1700
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TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS
Table 4. Main Installer Setup Menu. (Continued)
Factory Setting Other Choices
Installer
Select
Cycles per hour (cph) for 1st Stage Compressor
Cycles per hour (cph) for 1st Stage Conventional Heat
Continuous Backlight
Additional Menu Choices
Setup
Number
0220 3 Compressor Stage
0240 5 Conventional Heat
0280 0 Backlight not on
0290 0 Only main menu
1 cycles per hour (cph)
Stage 1 cycles per hour (cph)
continuously. Thermostat backlight comes on with each key press.
options are shown. Installer Test Options shown next (Table 7).
1-6 1-6 available;
1-12 1-12 available; typical
1 Backlight is on continuously
1,2 1—Main Menu and Regional
3 is recommended.
s e tt i n g s : 1—1 cph used for steam or gravity system. 3—3 cph used for hot water systems or high efficiency (90% or better) fossil fuel f o r c e d a i r s y s t e m s . 5—5 cph used for standard fossil fuel forced air systems. 9—9 cph used for electric forced air heat systems.
(thermostat must have a common wire attached for this function).
Settings are shown plus Installer Test (Tables 5 and 7 only).
2—All remaining Menu/ Options shown plus Installer Test (Tables 5, 6 and 7).
CommentsOption Description Options Description
Not shown if system selection is heat pump. Selection in this stage changes default cph for 2nd stage heat.
Option is always shown; however, continuously on backlight works only if thermostat is wired with 24 vac Common.
The majority of application require only the Main Menu Options.
69-1700 8
Page 9
TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS
Table 5. Regional Settings Menu.
Installer
Select
Setup
Number
Changeover 0300 0 Manual changeover 1 1—auto
Deadband 0310 3 Heating and cooling
Temperature Indication Scale
Daylight Savings
Remote Temperature Sensor (Outdoor or Indoor)
0320 0 Temperature is
0330 1 Daylight savings
0340 0 No remote
Factory Setting Other Choices
changeover
setpoints can be set no closer than 3
°
(1.5
C)
displayed in
enabled (United States).
°
F
°
F.
temperature sensor
2 thru 9 Heating and
1 Temperature is
0 0—daylight sav ings
1,3 1—outdoor
cooling setpoints can be set no closer than chosen value:
°
F (1°C )
2—2
°
3—3
F (2°C )
°
4—4
F (2.5°C )
°
5—5
F (3°C )
°
6—6
F (3.5°C )
°
7—7
F (4°C )
°
8—8
F (4.5°C )
°
9—9
F (5°C)
displayed in °C.
is disabled.
temperature sensor for display only. 3—indoor temperature sensor
CommentsOption Description Options Description
Shown only if automatic changeover is selected.
Set to 0 in areas that do not follow daylight savings.
Defaults and Options depend on System Type selected. Indoor Temperature Sensor uses an averaging network and does not include on-board sensor.
9 69-1700
Page 10
TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS
Table 6. Advanced Settings Menu.
Select
Furnace Filter Change Reminder
Humidifier Pad Replacement Reminder
Installer
Setup
Number
0500 0 Furnace filter
0510 0 Humidifier pad
Factory Setting Other Choices
change reminder off
replacement reminder off
1-6 1—1 0 r u n t i m e d a y s
1-3 1—90 calendar days
2—3 0 r u n t i m e d a y s 3—6 0 r u n t i m e d a y s 4—9 0 r u n t i m e d a y s 5—1 2 0 r u n t i m e d a y s 6—3 6 5 r u n t i m e d a y s
2—180 calendar days 3—365 calendar days
CommentsOption Description Options Description
Run time based on call for fan.
UV Lamp Replacement Reminder
Adaptive Intelligent Recovery™
Number of Periods
Minimum Compressor Off Time
Heat Temperature Range Stop
Cool Temperature Range Stop
Clock Format 0640 12 12-hour clock
Extended Fan on time Heat
Extended Fan on time Cool
0520 0 UV Lamp
0530 1 Adaptive
0540 4 Four periods
0580 5 Five minute
0600 90 Highest heating
0610 50 Lowest cooling
replacement reminder off
Intelligent Recovery™ control is activated (system starts early so setpoint is reached by start of program period).
available (Wake, Leave, Return, Sleep)
minimum off time for compressor
setpoint.
setpoint.
format
0650 0 No extended fan
0660 0 No extended fan
operation after call for heat ends
operation after call for cool ends
1 1—365 calendar days
0 0—conventional
2 Two periods availbable
0, 2, 3, 4 Minimum number of
40 to 89 Temperature range (1°F
51 to 99 Temperature range (1°F
recovery (system starts recovery at programmed time)
(Wake and Sleep)
minutes compressor is off between calls for compressor
increments) of heating setpoint.
increments) of cooling setpoint.
24 24-hour clock format
90 Fan operation is
90 Fan operation is
extended 90 seconds after call for heat ends.
extended 90 seconds after call for cool ends.
Not shown in non­programmable is selected. 2 or 4 applies to all days of the week.
Shown in 1/2 °C.
Shown in 1/2 °C.
Not shown if fan operation is set to fossil fuel or in Cool Only Systems
Not shown in Heat Only Systems.
69-1700 10
Page 11
Select
Keypad Lockout
Temperature Control in Heat
Temperature Control in Cool
Temperature Display Offset
Reset Thermostat
TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS
Table 6. Advanced Settings Menu. (Continued)
Installer
Setup
Number
0670 0 Unlocked keypad 1, 2 1—partially locked
0680 2 Standard
0690 2 Standard
0700 0 No difference in
0710 0 No thermostat
Factory Setting Other Choices
k ey pa d 2—fully locked keypad
temperature control in heating
temperature control in cooling
displayed temperature and actual room temperature
reset.
1, 3 1—less aggressive
1, 3 1—less aggressive
-3, -2, -1, 0, 1, 2, 3
1 Resets all Installer
temperature control (could cause temperature u n d e r s h o o t ) 3—more aggressive temperature control (could cause temperature overshoot)
temperature control (could cause temperature u n d e r s h o o t ) 3—more aggressive temperature control (could cause temperature overshoot)
°
F (-1.5°C )
-3
- 2 ° F ( - 1 ° C )
- 1 ° F ( - . 5 ° C ) 0 F ( 0 . ° C ) 1 ° F ( . 5 ° C ) 2 ° F ( 1° C ) 3°F (1.5°C)
Setup Options to default values and resets schedule to default setting.
CommentsOption Description Options Description
Unlocked—all functions are available. Partially locked— only temperature up and down keys and ability to enter and modify Installer Setup mode are a v ai l a b l e. Fully locked—only ability to enter and modify Installer Setup mode are available.
Applies to recovery ramp and use of auxiliary heat during recovery.
Choose 1 if getting temperature overshoot.
Choose 3 if getting temperature undershoot.
Applies to recovery ramp.
Choose 1 if getting temperature overshoot.
Choose 3 if getting temperature undershoot.
Only calendar settings and time are retained.

SYSTEM CHECKOUT

Installer System Test

The Installer System Test mode is used to test the HVAC system(s). See Table 7. While in System Test mode, minimum off -time for compressors is bypassed.
The Installer Test is part of Installer Setup options. Enter Installer Setup screen and press Down arrow key to bring up test selection(s) quickly. See Fig. 16.

ADVANCED FEATURES

Outdoor or Indoor Temperature Sensor

Allow outdoor or indoor temperature sensor to absorb the air for a minimum of five minutes before taking a reading. See the Sensor instructions for more information.
11 69-1700
Page 12
TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS
CAUTION
Equipment Damage Hazard. Minimum compressor off-time is bypassed during Installer System Test.
Avoid cycling compressor quickly.
Table 7. System Test(s).
Select
Installer Test Cool
Installer Test Fan
Installer Test Heat
Installer
Setup
Number
Test 1 0 Cool is off 1 0—cool off
Test 2 0 Fan is off 1 0— f a n o f f
Test 3 0 Heat is off 1 0—heat off
Factory Setting Other Choices

TROUBLESHOOTING (SEE TABLE 8)

Table 8. Troubleshooting.
Symptom Possible Cause Action
Display does not come on. Thermostat is not being
Temperature settings do not change.
Heating or cooling does not come on.
Thermostat is calling for Heat (Heat on) or Cool (Cool on) but no heating or cooling is running.
Thermostat does not respond when touchpad is pressed.
powered.
The upper or lower temperature limits were reached.
The keypad is fully locked. Check Installer Setup Number 0670 to change keypad
Thermostat minimum off­time is activated.
System selection is not set to Heat or Cool.
O/B terminal is not set correctly (Heat Pumps only).
System type Selection is incorrect.
Heating or cooling equipment is not operating.
The keypad is locked. Check Installer Setup Number 0670 to change keypad
CommentsOptions Description Options Description
1—cool stage 1
turns on
1—fan turns on
1—stage 1heat on
Check for 24 Vac between C and Rc. Verify AAA batteries installed correctly and good.
Check temperature setpoints. Check Installer Setup Numbers 0600 and 0610; modify.
lock options.
Wait up to five minutes for the system to respond.
Set system Selection to correct position.
Check Installer Setup Number 0190 and set correctly.
Check Installer Setup Number 0170 and make sure correct System type is chosen.
Check wiring. Check Installer Setup Number 0170; verify correct system type is chosen. Verify equipment operation in System Test mode.
locked options.
System selection deter­mines tests available and number of stages shown.
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario
69-1700 G.H. 03-04 www.honeywell.com/yourhome
M1V 4Z9
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