69 1714 TH6110D Programmable Thermostat Installation Guide Honeywell

User Manual: TH6110D

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Installation
Guide

TH6110D
Programmable Thermostat

FocusPRO™ TH6110D Programmable Thermostat

Product Application

Table of contents

This thermostat provides electronic control of 24 VAC single-stage heating and cooling systems, or 750 mV heating systems.

Installation
Pre-installation checklist ................2
Wallplate installation ......................3
Wiring..............................................4
Wiring diagrams ..............................5
Power options ................................7
Thermostat mounting ....................7

System Types

Power Options

•

Gas, oil, or electric heat with air
conditioning

•

Battery power only

•

Common wire only

•

Warm air, hot water, high-efficiency
furnaces, heat pumps, steam, gravity

•

Common wire with battery backup

•

Heat only — two-wire systems,
power to open and close zone
valves (Series 20), and normallyopen zone valves

Changeover Options
•

Setup and testing
Installer setup..................................8
Installer system test ........................9
Explanation of features ................10

Selectable manual or
auto-changeover modes

•

Heat only with fan

System Settings

•

Cool only

•

750 mV heating systems

Fan Settings
•

Appendices
Quick reference to controls..........11
Quick reference to display............11
Battery replacement......................11
In case of difficulty ......................12
Accessories/replacement parts ....13
Specifications ................................13

Heat, Off, Cool,Auto

Installation tips
Install the thermostat about 5 feet (1.5m) above the floor in an area
with good air circulation at average temperature.

Auto, On

Must be installed by a trained, experienced technician
•

Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition.

•

Check the ratings in this booklet to verify that this product is suitable for your
application (see page 13).

•

Always test for proper operation after installation (see page 9).

CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before
beginning installation.
MERCURY NOTICE
If this product is replacing a control that contains mercury in a sealed tube, do not
place the old control in the trash. Contact your local waste management authority for
instructions regarding recycling and proper disposal.

® U.S. Registered Trademark. Patents pending.
Copyright © 2005 Honeywell International Inc. All rights reserved.

Do not install in locations where the thermostat can be affected by:
• Drafts or dead spots behind doors and in corners
• Hot or cold air from ducts
• Sunlight or radiant heat from appliances
• Concealed pipes or chimneys
• Unheated/uncooled areas such as an outside wall behind the thermostat

FocusPRO™ TH6110D Programmable Thermostat

Product Application

Table of contents

This thermostat provides electronic control of 24 VAC single-stage heating and cooling systems, or 750 mV heating systems.

System Types

Power Options

•

Gas, oil, or electric heat with air
conditioning

•

Battery power only

•

Common wire only

•

Warm air, hot water, high-efficiency
furnaces, heat pumps, steam, gravity

•

Common wire with battery backup

•

Heat only — two-wire systems,
power to open and close zone
valves (Series 20), and normallyopen zone valves

Changeover Options
•

Setup and testing
Installer setup..................................8
Installer system test ........................9
Explanation of features ................10

Selectable manual or
auto-changeover modes

•

Heat only with fan

System Settings

•

Cool only

•

750 mV heating systems

Fan Settings
•

Heat, Off, Cool,Auto

Installation tips
Install the thermostat about 5 feet (1.5m) above the floor in an area
with good air circulation at average temperature.

Auto, On

Must be installed by a trained, experienced technician
•

Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition.

•

Check the ratings in this booklet to verify that this product is suitable for your
application (see page 13).

•

Always test for proper operation after installation (see page 9).

® U.S. Registered Trademark. Patents pending.
Copyright © 2005 Honeywell International Inc. All rights reserved.

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

Pre-installation checklist

Wallplate installation

Package contents

Insert finger into wire hole and pull to
remove wallplate from thermostat.

Remove the wallplate from the thermostat as shown at left, then follow
directions below for mounting.

Check to make sure your package includes the following items:

1 Insert quick reference card in slot
in back of thermostat.
2 Pull wires through wire hole.
3 Position wallplate on wall, level and
mark hole positions with pencil.
Quick
reference
card

FocusPRO™ TH6110D
programmable thermostat
(wallplate attached to back)

4 Drill holes at marked positions as
shown below, then tap in supplied
wall anchors.

Operating manual
Insert quick reference card

Wall anchors and
mounting screws
(2 each)

5 Place wallplate over anchors, insert
and tighten mounting screws.

AA alkaline
batteries (2)

Drill 3/16” holes for drywall.
Drill 7/32” holes for plaster.

Required tools & supplies

Wire hole

•

No. 2 Phillips screwdriver

•

Small pocket screwdriver

•

Drill

•

Drill bit (3/16” for drywall, 7/32” for plaster)

•

Hammer

•

Pencil

•

Electrical tape

•

Level (optional)

Wall anchors

Mounting screws

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

Pre-installation checklist

Wallplate installation

Package contents

Insert finger into wire hole and pull to
remove wallplate from thermostat.

Remove the wallplate from the thermostat as shown at left, then follow
directions below for mounting.

Check to make sure your package includes the following items:

1 Insert quick reference card in slot
in back of thermostat.
2 Pull wires through wire hole.
3 Position wallplate on wall, level and
mark hole positions with pencil.
Quick
reference
card

FocusPRO™ TH6110D
programmable thermostat
(wallplate attached to back)

4 Drill holes at marked positions as
shown below, then tap in supplied
wall anchors.

Operating manual
Insert quick reference card

Wall anchors and
mounting screws
(2 each)

5 Place wallplate over anchors, insert
and tighten mounting screws.

AA alkaline
batteries (2)

Drill 3/16” holes for drywall.
Drill 7/32” holes for plaster.

Required tools & supplies

Wire hole

•

No. 2 Phillips screwdriver

•

Small pocket screwdriver

•

Drill

•

Drill bit (3/16” for drywall, 7/32” for plaster)

•

Hammer

•

Pencil

•

Electrical tape

•

Level (optional)

Wall anchors

Mounting screws

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

Wiring

Wiring diagrams

CAUTION: ELECTRICAL HAZARD. Can cause electrical shock or equipment damage.
Disconnect power before wiring.

Power supply. Provide disconnect means and overload protection as required.
Factory-installed jumper. Remove for 2-transformer systems only.
Optional 24VAC common connection.

Wiring

Keep wires in this
shaded area

1 Loosen screw terminals, insert
wires into terminal block, then
re-tighten screws.

In Installer Setup, set system type to Heat Only.
In Installer Setup, set system type to Heat Pump & changeover valve to 0 or B.
Typical 1H/1C system: 1 transformer

Typical 1H/1C system: 2 transformers

2 Push excess wire back into the
wall opening. Keep wires in shaded
area as shown at left.
Terminal
block

3 Plug the wall opening with nonflammable insulation to prevent
drafts from affecting thermostat
operation.

Terminal Designations
G Fan relay.
W O/B Heat relay or changeover valve
terminal for heat pumps.

NOTES

Remove jumper

C Common wire from secondary side
of cooling system transformer.

R & Rc terminals
In single-transformer system, leave metal
jumper in place between R & Rc. Remove
metal jumper if two-transformer system.

Y Compressor contactor.

Typical 1H/1C heat pump system

Typical heat-only system

R Heating power. Connect to
secondary side of heating
system transformer.

C terminal
The C (common wire) terminal is optional
when thermostat is powered by batteries.

Rc Cooling power. Connect to
secondary side of cooling
system transformer.

W (O/B) terminal
If thermostat is configured for a heat pump
in the Installer Setup, configure changeover
valve for cool (“O” factory setting) or heat
(“B”).
Wire specifications
Use 18- to 22-gauge thermostat wire.
Shielded cable is not required.

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

Wiring

Wiring diagrams

CAUTION: ELECTRICAL HAZARD. Can cause electrical shock or equipment damage.
Disconnect power before wiring.

Power supply. Provide disconnect means and overload protection as required.
Factory-installed jumper. Remove for 2-transformer systems only.
Optional 24VAC common connection.

Wiring

Keep wires in this
shaded area

1 Loosen screw terminals, insert
wires into terminal block, then
re-tighten screws.

In Installer Setup, set system type to Heat Only.
In Installer Setup, set system type to Heat Pump & changeover valve to 0 or B.
Typical 1H/1C system: 1 transformer

Typical 1H/1C system: 2 transformers

2 Push excess wire back into the
wall opening. Keep wires in shaded
area as shown at left.
Terminal
block

3 Plug the wall opening with nonflammable insulation to prevent
drafts from affecting thermostat
operation.

Terminal Designations
G Fan relay.
W O/B Heat relay or changeover valve
terminal for heat pumps.

NOTES

Remove jumper

C Common wire from secondary side
of cooling system transformer.

R & Rc terminals
In single-transformer system, leave metal
jumper in place between R & Rc. Remove
metal jumper if two-transformer system.

Y Compressor contactor.

Typical 1H/1C heat pump system

Typical heat-only system

R Heating power. Connect to
secondary side of heating
system transformer.

C terminal
The C (common wire) terminal is optional
when thermostat is powered by batteries.

Rc Cooling power. Connect to
secondary side of cooling
system transformer.

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

Wiring diagrams

Power options & mounting

Power supply. Provide disconnect means and overload protection as required.

AC Power

Factory-installed jumper. Remove for 2-transformer systems only.

The thermostat can be powered by 24
VAC power, or by batteries.

Optional 24VAC common connection.
In Installer Setup, set system type to Heat Only.
In Installer Setup, set system type to Heat Pump & changeover valve to 0 or B.
Typical heat-only system with fan

Heat-only system (Series 20)

Connect common
side of transformer
to “C” terminal

Jumper

To wire the thermostat for AC power,
connect the common side of the
cooling transformer to the “C” terminal
as shown at left.
Important: Remove R/Rc jumper for
2-transformer systems only. (See wiring
diagram on page 5.)

Battery Power
The thermostat can be powered by
batteries alone or, if used with AC
power, can provide backup power.
During power interruptions the
batteries will save time/day settings
and power the display.

Typical cool-only system

Heat-only system (normally open zone valve)

After installation, batteries can be
changed without removing the thermostat from the wall (see page 11).

Install batteries in back of thermostat
(optional if AC powered).

To Mount Thermostat
Align the 4 tabs on the wallplate with
corresponding slots on the back of the
thermostat, then push gently until the
thermostat snaps in place.

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

Wiring diagrams

Power options & mounting

Power supply. Provide disconnect means and overload protection as required.

AC Power

Factory-installed jumper. Remove for 2-transformer systems only.

The thermostat can be powered by 24
VAC power, or by batteries.

Optional 24VAC common connection.
In Installer Setup, set system type to Heat Only.
In Installer Setup, set system type to Heat Pump & changeover valve to 0 or B.
Typical heat-only system with fan

Heat-only system (Series 20)

Connect common
side of transformer
to “C” terminal

Jumper

Typical cool-only system

Heat-only system (normally open zone valve)

After installation, batteries can be
changed without removing the thermostat from the wall (see page 11).

Install batteries in back of thermostat
(optional if AC powered).

To Mount Thermostat
Align the 4 tabs on the wallplate with
corresponding slots on the back of the
thermostat, then push gently until the
thermostat snaps in place.

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

Installer setup

Installer system test

Follow the procedure below to configure the thermostat to match the installed
heating/cooling system, and customize feature operation as desired.
Function
number

Setting

1
Done

Press
Press
Press

and FAN
To begin, press and hold the
buttons until the display changes

Setup Function

Follow the procedure below to test the heating, cooling and fan.

System test
number

Done

or
to change settings
to advance to next function
DONE to exit and save settings
NEXT

System
status

Press

and
To begin, press and hold the
buttons until the display changes

Press
Press

0
Next

to turn on system

to turn off system
to advance to next test
Press DONE to terminate system test

Settings & Options

0 Gas, oil or electric heat with air conditioning
1 Heat pump
2 Heat only (2-wire systems/power to open & close zone valves/
normally open zone valves)
3 Heat only with fan
4 Cool only

System Test

System Status

10 Heating system

0 Heat and fan turn off.
1 Heat turns on. Fan also turns on immediately if Function 1 or 3
is set to “1” (see page 8).

2 Changeover valve
(O/B terminal)

0 Changeover valve (O/B terminal energized in cooling)
1 Changeover valve (O/B terminal energized in heating)

30 Cooling system

0 Compressor and fan turn off.
1 Compressor and fan turn on.

3 Fan control
(heating)

0 Gas or oil furnace — equipment controls fan in heating
1 Electric furnace — thermostat controls fan in heating

40 Fan system

0 Fan turns off.
1 Fan turns on.

5 Heating cycle rate
(CPH: cycles/hour)

5
1
3
9

70 Thermostat
information
(for reference only)

9 Compressor
cycle rate (CPH)

3 Recommended for most compressors
[Other cycle rate options: 1, 2, 4, 5 or 6 CPH]

71
72
73
74
75
76

1 System type

For gas or oil furnaces of less than 90% efficiency
For steam or gravity systems
For hot water systems & furnaces of over 90% efficiency
For electric furnaces
[Other cycle rate options: 2, 4, 6, 7, 8, 10, 11 or 12 CPH]

12 System setting
adjustment

0 Manual changeover (Heat/Cool/Off)
1 Auto changeover (Heat/Cool/Auto/Off) **See page 10
2 Auto changeover only (Auto) **See page 10

13 Adaptive Intelligent Recovery™

1 On **See page 10
0 Off

14 Temperature
display

0 Fahrenheit
1 Celsius

15 Compressor
protection

5 Five-minute compressor off time **See page 10
[Other options: 0, 1, 2, 3 or 4-minute off time]

16 Schedule format

0 5/2 (programmable weekdays and weekends)
1 5/1/1 (weekdays, Saturday & Sunday programmable)
8

Software revision number (major revisions)
Software revision number (minor revisions)
Configuration identification code (major)
Configuration identification code (minor)
Production configuration date code (week)
Production configuration date code (year)

CAUTION: EQUIPMENT DAMAGE HAZARD
Compressor protection (minimum off time) is bypassed during testing. To prevent
equipment damage, avoid cycling the compressor quickly.

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

Installer setup

Installer system test

Follow the procedure below to configure the thermostat to match the installed
heating/cooling system, and customize feature operation as desired.
Function
number

Setting

1
Done

Press
Press
Press

and FAN
To begin, press and hold the
buttons until the display changes

Setup Function

Follow the procedure below to test the heating, cooling and fan.

System test
number

Done

or
to change settings
to advance to next function
DONE to exit and save settings
NEXT

System
status

Press

and
To begin, press and hold the
buttons until the display changes

Press
Press

0
Next

to turn on system

to turn off system
to advance to next test
Press DONE to terminate system test

Settings & Options

0 Gas, oil or electric heat with air conditioning
1 Heat pump
2 Heat only (2-wire systems/power to open & close zone valves/
normally open zone valves)
3 Heat only with fan
4 Cool only

System Test

System Status

10 Heating system

0 Heat and fan turn off.
1 Heat turns on. Fan also turns on immediately if Function 1 or 3
is set to “1” (see page 8).

2 Changeover valve
(O/B terminal)

0 Changeover valve (O/B terminal energized in cooling)
1 Changeover valve (O/B terminal energized in heating)

30 Cooling system

0 Compressor and fan turn off.
1 Compressor and fan turn on.

3 Fan control
(heating)

0 Gas or oil furnace — equipment controls fan in heating
1 Electric furnace — thermostat controls fan in heating

40 Fan system

0 Fan turns off.
1 Fan turns on.

5 Heating cycle rate
(CPH: cycles/hour)

5
1
3
9

70 Thermostat
information
(for reference only)

9 Compressor
cycle rate (CPH)

3 Recommended for most compressors
[Other cycle rate options: 1, 2, 4, 5 or 6 CPH]

71
72
73
74
75
76

1 System type

12 System setting
adjustment

0 Manual changeover (Heat/Cool/Off)
1 Auto changeover (Heat/Cool/Auto/Off) **See page 10
2 Auto changeover only (Auto) **See page 10

13 Adaptive Intelligent Recovery™

1 On **See page 10
0 Off

14 Temperature
display

0 Fahrenheit
1 Celsius

15 Compressor
protection

5 Five-minute compressor off time **See page 10
[Other options: 0, 1, 2, 3 or 4-minute off time]

16 Schedule format

0 5/2 (programmable weekdays and weekends)
1 5/1/1 (weekdays, Saturday & Sunday programmable)
8

CAUTION: EQUIPMENT DAMAGE HAZARD
Compressor protection (minimum off time) is bypassed during testing. To prevent
equipment damage, avoid cycling the compressor quickly.

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

Auto Changeover (Setup Function 12)

Quick reference to controls

Set Clock/Day/
Schedule

Fan
Auto

Auto Changeover is a feature used in
climates where both air conditioning and
heating are used on the same day.When the
system is set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature.

System
Auto

Digital display screen

Battery holder (see page 7)

Temperature buttons
Press to adjust temperature
settings

Heat and cool settings must be at least 3
degrees apart.The thermostat will automatically adjust settings to maintain this 3-degree
separation (called “deadband”).
The 3-degree separation between heating
and cooling set temperatures is fixed, and
cannot be changed.

Hold button
Press to override programmed
temperature control
Function buttons
Press to select the function displayed just above each button.
(Functions change depending on the task.)

Adaptive Intelligent Recovery™ (Setup Function 13)

Quick reference to display screen

Adaptive Intelligent Recovery eliminates guesswork when setting your schedule. It
allows the thermostat to “learn” how long your furnace and air conditioner take to
reach the temperature you want.

Current inside temperature

Just set your program schedule to the time you want the house to reach your
desired temperature.The thermostat then turns on the heating or cooling at just the
right time to reach your scheduled temperature at your scheduled time.

Current program period
Wake/Leave/Return/Sleep

Inside

Low battery warning

Heat
Setting

Replace Battery

Wake

6:30

For example: Set the Wake time to 6 am, and the temperature to 70°.The heat will
come on before 6 am, so the temperature is 70° by the time you wake at 6.

Built-in compressor protection (Setup Function 15)

Function buttons
Press the button beneath each function to view or change
settings. (Functions change depending on the task.)

Cool
Setting

Set Clock/Day/
Schedule

6:30
Fan
Auto

Cool On
System
Cool

Message flashes until safe
restart time has elapsed

This feature helps prevent damage to the
compressor in your air conditioning or heat
pump system.
Damage can occur if the compressor is restarted too soon after shutdown.This feature
forces the compressor to wait for a few
minutes before restarting.

Set Clock/Day/
Schedule

Fan
Auto

System
Heat

Temperature setting
System status
On when “calling” for
heating or cooling;
flashes when waiting for
compressor restart.
System setting
(Heat/Cool/Auto/Off)
Fan setting
(Auto/On)

Battery replacement
Press and pull to remove

Insert fresh AA
alkaline batteries,
then reinstall
battery holder

During the wait time, the message Cool On
or Heat On (heat pumps only) will flash on
the display.When the safe wait time has
elapsed, the message stops flashing and the
compressor turns on.
10

Heat On

Wed

Set Clock/Day/Schedule
Press to set time, day or
program schedules.

Inside

Current time/day

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

Auto Changeover (Setup Function 12)

Quick reference to controls

Set Clock/Day/
Schedule

Fan
Auto

System
Auto

Digital display screen

Battery holder (see page 7)

Temperature buttons
Press to adjust temperature
settings

Hold button
Press to override programmed
temperature control
Function buttons
Press to select the function displayed just above each button.
(Functions change depending on the task.)

Adaptive Intelligent Recovery™ (Setup Function 13)

Quick reference to display screen

Current inside temperature

Current program period
Wake/Leave/Return/Sleep

Inside

Low battery warning

Heat
Setting

Replace Battery

Wake

6:30

For example: Set the Wake time to 6 am, and the temperature to 70°.The heat will
come on before 6 am, so the temperature is 70° by the time you wake at 6.

Built-in compressor protection (Setup Function 15)

Function buttons
Press the button beneath each function to view or change
settings. (Functions change depending on the task.)

Cool
Setting

Set Clock/Day/
Schedule

6:30
Fan
Auto

Cool On
System
Cool

Message flashes until safe
restart time has elapsed

Set Clock/Day/
Schedule

Fan
Auto

System
Heat

Temperature setting
System status
On when “calling” for
heating or cooling;
flashes when waiting for
compressor restart.
System setting
(Heat/Cool/Auto/Off)
Fan setting
(Auto/On)

Battery replacement
Press and pull to remove

Insert fresh AA
alkaline batteries,
then reinstall
battery holder

During the wait time, the message Cool On
or Heat On (heat pumps only) will flash on
the display.When the safe wait time has
elapsed, the message stops flashing and the
compressor turns on.
10

Heat On

Wed

Set Clock/Day/Schedule
Press to set time, day or
program schedules.

Inside

Current time/day

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

In case of difficulty

If you have difficulty with your thermostat, please try the suggestions below. Most
problems can be corrected quickly and easily.

Heating equipment is running
in cool mode

•

Check Installer Setup, Function 1 (System Type), to make sure it is set to
match the installed heating/cooling equipment (see page 8).

Cannot change
system setting
to “Heat”

•

Check Installer Setup, Function 1 (System Type), to make sure it is set to
match the installed heating equipment (see page 8).

•

Change Installer Setup, Function 12 (System Setting) to Manual or Auto
Changeover (see page 8).

Cannot change
system setting
to “Cool”

•

Check Installer Setup, Function 1 (System Type), to make sure it is set to
match the installed cooling equipment (see page 8).

•

Change Installer Setup, Function 12 (System Setting) to Manual or Auto
Changeover (see page 8).

“Heat On” is
not displayed

•

Change the System Setting to Heat, and set the temperature level above
the current room temperature.

“Cool On” is not •
displayed

Change the System Setting to Cool, and set the temperature level below
the current room temperature.

“Cool On” or
“Heat On”
is flashing

Compressor protection timeout is engaged. Wait 5 minutes for the
system to restart safely, without damage to the compressor.

Display is blank

Temperature
settings do not
change

•

Check circuit breaker and reset if necessary.

•

Make sure power switch at heating & cooling system is on.

•

Make sure furnace door is closed securely.

•

If thermostat is battery powered, make sure fresh AA alkaline batteries
are correctly installed (see page 7).

Make sure heating and cooling temperatures are set to acceptable ranges:
•

Heat: 40° to 90°F (4.5° to 32°C).

•

Cool: 50° to 99°F (10° to 37°C).

Heating system •
does not respond
(“Heat On”
appears on
•
screen)

Check for 24 Vac at the equipment on the secondary side of the transformer between power and common. If voltage is not present, check the
heating equipment to find the cause of the problem.

•

Check for loose or broken wires between the thermostat and the heating
equipment.

Cooling system •
does not respond
(“Cool On”
appears on
•
screen)

Check for 24 Vac at the equipment on the secondary side of the transformer between power and common. If voltage is not present, check the
cooling equipment to find the cause of the problem

Accessories & replacement parts

Check for 24 Vac between the cooling terminal (Y) and the transformer
common. If 24 Vac is present, the thermostat is functional. Check the
cooling system to find the cause of the problem.

Battery holder ......................................................Part Number 50007072-001
Cover plate assembly ........................................Part Number 50002883-001
(Use to cover marks left by old thermostats.)

•

Check for loose or broken wires between the thermostat and the cooling
equipment.

Specifications

Fan does not
turn on in a call
for heat

•

Heat pump
issues cool air
in heat mode,
or warm air in
cool mode

•

Heat/cool both
•
on at same time,
or heat does
•
not turn off

Check for 24 Vac between the heat terminal (W) and the transformer
common. If 24 Vac is present, the thermostat is functional. Check the
heating equipment to find the cause of the problem.

Check Installer Setup, Function 3 (Fan Control), to make sure the fan
control is properly set to match the type of system (see page 8).

Check Installer Setup, Function 2 (Changeover Valve), to make sure it is
properly configured for your system (see page 8).

•

Please contact your distributor to order replacement parts.

Temperature Ranges
• Heat: 40° to 90°F (4.5° to 32°C)
• Cool: 50° to 99°F (10° to 37°C)

Electrical Ratings

Operating Ambient Temperature
• 32° to 120°F (0° to 48.9°C)

W (O/B) Heating

20-30 Vac

0.02-1.0 A

(Powerpile)

750 mV DC

100 mA DC

Y Cooling

20-30 Vac

0.02-1.0 A

G Fan

20-30 Vac

0.02-0.5 A

Shipping Temperature
• -20° to 120°F (-28.9° to 48.9°C)

Check Installer Setup, Function 1 (System Type), to make sure it is set to
match the installed heating/cooling equipment (see page 8).
Check to make sure heating and cooling wires are not shorted together.

Operating Relative Humidity
• 5% to 90% (non-condensing)

Terminal

Physical Dimensions
• 3-9/16” H x 5-13/16” W x 1-1/2” D
• 91 mm H x 147 mm W x 38 mm D
13

Voltage (50/60Hz)

Running Current

Installation Guide

FocusPRO™ TH6110D Programmable Thermostat

In case of difficulty

If you have difficulty with your thermostat, please try the suggestions below. Most
problems can be corrected quickly and easily.

Heating equipment is running
in cool mode

•

Check Installer Setup, Function 1 (System Type), to make sure it is set to
match the installed heating/cooling equipment (see page 8).

Cannot change
system setting
to “Heat”

•

Check Installer Setup, Function 1 (System Type), to make sure it is set to
match the installed heating equipment (see page 8).

•

Change Installer Setup, Function 12 (System Setting) to Manual or Auto
Changeover (see page 8).

Cannot change
system setting
to “Cool”

•

Check Installer Setup, Function 1 (System Type), to make sure it is set to
match the installed cooling equipment (see page 8).

•

Change Installer Setup, Function 12 (System Setting) to Manual or Auto
Changeover (see page 8).

“Heat On” is
not displayed

•

Change the System Setting to Heat, and set the temperature level above
the current room temperature.

“Cool On” is not •
displayed

Change the System Setting to Cool, and set the temperature level below
the current room temperature.

“Cool On” or
“Heat On”
is flashing

Compressor protection timeout is engaged. Wait 5 minutes for the
system to restart safely, without damage to the compressor.

Display is blank

Temperature
settings do not
change

•

Check circuit breaker and reset if necessary.

•

Make sure power switch at heating & cooling system is on.

•

Make sure furnace door is closed securely.

•

If thermostat is battery powered, make sure fresh AA alkaline batteries
are correctly installed (see page 7).

Make sure heating and cooling temperatures are set to acceptable ranges:
•

Heat: 40° to 90°F (4.5° to 32°C).

•

Cool: 50° to 99°F (10° to 37°C).

Heating system •
does not respond
(“Heat On”
appears on
•
screen)

Check for 24 Vac at the equipment on the secondary side of the transformer between power and common. If voltage is not present, check the
heating equipment to find the cause of the problem.

•

Check for loose or broken wires between the thermostat and the heating
equipment.

Cooling system •
does not respond
(“Cool On”
appears on
•
screen)

Check for 24 Vac at the equipment on the secondary side of the transformer between power and common. If voltage is not present, check the
cooling equipment to find the cause of the problem

Accessories & replacement parts

Check for 24 Vac between the cooling terminal (Y) and the transformer
common. If 24 Vac is present, the thermostat is functional. Check the
cooling system to find the cause of the problem.

•

Check for loose or broken wires between the thermostat and the cooling
equipment.

Specifications

Fan does not
turn on in a call
for heat

•

Heat pump
issues cool air
in heat mode,
or warm air in
cool mode

•

Heat/cool both
•
on at same time,
or heat does
•
not turn off

Check for 24 Vac between the heat terminal (W) and the transformer
common. If 24 Vac is present, the thermostat is functional. Check the
heating equipment to find the cause of the problem.

Check Installer Setup, Function 3 (Fan Control), to make sure the fan
control is properly set to match the type of system (see page 8).

Check Installer Setup, Function 2 (Changeover Valve), to make sure it is
properly configured for your system (see page 8).

•

Please contact your distributor to order replacement parts.

Temperature Ranges
• Heat: 40° to 90°F (4.5° to 32°C)
• Cool: 50° to 99°F (10° to 37°C)

Electrical Ratings

Operating Ambient Temperature
• 32° to 120°F (0° to 48.9°C)

W (O/B) Heating

20-30 Vac

0.02-1.0 A

(Powerpile)

750 mV DC

100 mA DC

Y Cooling

20-30 Vac

0.02-1.0 A

G Fan

20-30 Vac

0.02-0.5 A

Shipping Temperature
• -20° to 120°F (-28.9° to 48.9°C)

Operating Relative Humidity
• 5% to 90% (non-condensing)

Terminal

Physical Dimensions
• 3-9/16” H x 5-13/16” W x 1-1/2” D
• 91 mm H x 147 mm W x 38 mm D
13

Voltage (50/60Hz)

Running Current

Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422

Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario M1V 4Z9

www.honeywell.com/yourhome

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69 1714 TH6110D Programmable Thermostat Installation Guide Honeywell

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