Honeywell FocusPRO TH5110D User manual

® U.S. Registered Trademark
Copyright © 2004 Honeywell International Inc. • • All Rights Reserved
INSTALLATION INSTRUCTIONS
69-1712—1
TH5110D Non-programmable
Thermostat
APPLICATION
The TH5110D Non-programmable Thermostat provides
electronic control of 24 Vac, single-stage heating and
cooling systems or 750 mV heating systems. See Table 1
for a description.
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.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of the old thermostat.
Table 1. TH5110D Thermostat description.
Feature Description
Powering Methods •Battery only
•Common wire only
•Common wire with battery backup
System Types (Up to 1 Heat, 1 Cool) •Gas, oil or electric heat with air conditioning
•Warm air, hot water, high efficiency furnaces, heat pumps, steam
and gravity
•Heat only— includes power to open and power to close zone valves
(Series 20) and normally-open zone valves
•Heat only with fan
•Cool only
•750 mV heating systems
Changeover Manual or auto changeover selectable
System Setting Heat-Off-Cool-Auto
Fan Setting Auto-On

TH5110D NON-PROGRAMMABLE THERMOSTAT
69-1712—1 2
INSTALLATION
When installing this product…
1. Read these instructions carefully. Failure to follow
these 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.
CAUTION
Electrical Hazard.
Can cause electrical shock or equipment
damage.
Disconnect power before beginning installation.
Select Thermostat Location
Select a location for the thermostat about 5ft (1.5m)
above the floor in an area with good air circulation at
average temperature. See Fig. 1.
Fig. 1. Select thermostat location.
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.
Separate Wallplate from Thermostat
1. Separate the wallplate from the thermostat. See
Fig. 2.
Fig. 2. Separate wallplate from thermostat.
Install Wallplate (See Fig. 3.)
Mount the thermostat horizontally on the wall:
1. Pull the wires through the wire hole on the
wallplate.
2. Position the wallplate on the wall with the arrow
pointing up. Level the wallplate for appearance
only.
3. Use a pencil to mark the mounting holes.
4. Remove the wallplate from the wall and drill
two 3/16-in. holes in the wall (if drywall) as marked.
For firmer material such as plaster, drill two 7/32-in.
holes. Tap the wall anchors (provided) into the
drilled holes until flush with the wall.
5. Pull the wires through the wire hole on the
wallplate and position the wallplate over the wall
anchors.
6. Insert the mounting screws into the wall anchors
and tighten.
Fig. 3. Install wallplate.
5 FEET
[1.5 METERS]
YES NO
NO
NO
M22085
THERMOSTAT
WALLPLATE
WIRE HOLE
M22042
M22140
DRILLED HOLES (2)
WALL
ANCHORS (2)
MOUNTING
SCREWS (2)
WALLPLATE
G
W
C
Y
R
Rc
(O/B)

TH5110D NON-PROGRAMMABLE THERMOSTAT
3 69-1712—1
WIRING
All wiring must comply with local electrical codes and
ordinances. Refer to Table 2 for descriptions of terminal
designations. See Fig. 6-13 for wiring diagrams for
specific equipment applications.
CAUTION
Electrical Hazard.
Can cause electrical shock or equipment
damage.
Disconnect power before wiring.
IMPORTANT
Use 18-22 gauge thermostat wire. Shielded
cable is not required.
1. Loosen the screw terminals that are used for the
application. Insert the wires into the terminal block
and tighten each screw terminal. See Fig. 4.
Fig. 4. Insert wires into terminal block.
2. Push excess wire back into the wall opening and
restrict wires to the shaded area. See Fig. 5.
Fig. 5. Restrict wires to shaded area of wire hole.
3. Plug the wall opening with nonflammable insulation
to prevent drafts from affecting the thermostat.
NOTES:
1. When used in a single-transformer system, leave metal jumper in place between Rc and R. If used on a
two-transformer system, remove metal jumper between Rc and R.
2. Common wire is optional when thermostat is used with batteries.
3. If thermostat is configured for a heat pump in the Installer Setup, configure changeover valve
for cool (O-factory setting) or heat (B).
G
O/B W
Y
C
R
M22141
RC
G
W/O/B
Y
R
RC
WALLPLATE
SCREW TERMINALS
TERMINAL BLOCK
WIRES
LETTER
DESIGNATIONS
WALLPLATE
M22142
SHADED AREA
WIRE
G
W
Y
C
R
Rc
WALL OPENING
(O/B)
Table 2. Terminal designation descriptions.
Terminal
Designation Description
Rc (see Note 1) Power for cooling—connect to secondary side of cooling system transformer
R (see Note 1) Power for heating—connect to secondary side of heating system transformer
Y Compressor contactor
C (see Note 2) Common wire from secondary side of cooling system transformer
O/B W (see Note 3) Heat relay or changeover valve terminal for heat pumps
GFanrelay

TH5110D NON-PROGRAMMABLE THERMOSTAT
69-1712—1 4
WIRING DIAGRAMS
Fig. 6. Typical hookup of conventional 1H/1C system
with one transformer.
Fig. 7. Typical hookup of conventional 1H/1C system
with two transformers.
Fig. 8. Typical hookup of 1H/1C heat pump.
Fig. 9. Typical hookup of heat only system.
M22068
G
O/B W
Y
C
R
Rc
L1
(HOT)
FAN
RELAY COMPRESSOR
CONTACTOR
L2
R
C
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
1
2
3OPTIONAL 24 VAC COMMON CONNECTION.
FACTORY INSTALLED JUMPER.
HEAT
RELAY
THERMOSTAT WIRING TERMINALS
M22069
G
O/B W
Y
C
R
Rc
L1
(HOT)
FAN
RELAY
COMPRESSOR
CONTACTOR
THERMOSTAT WIRING TERMINALS
L2
R
C
1
L1
(HOT)
L2
RC
C
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
1
2
3OPTIONAL 24 VAC COMMON CONNECTION.
REMOVE FACTORY INSTALLED JUMPER.
HEAT
RELAY
M22070
G
O/B W
Y
C
R
Rc
L1
(HOT)
FAN
RELAY COMPRESSOR
CONTACTOR
L2
R
C
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
1
2
3
4
OPTIONAL 24 VAC COMMON CONNECTION.
4CONFIGURE SYSTEM TYPE TO HEAT PUMP AND CHANGEOVER
VALVE TO EITHER O OR B IN THE INSTALLER SETUP.
FACTORY INSTALLED JUMPER.
CHANGEOVER
VALVE
THERMOSTAT WIRING TERMINALS
M22071
G
O/B W
Y
C
R
Rc
L1
(HOT)
L2
R
C
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
1
2
3OPTIONAL 24 VAC COMMON CONNECTION.
FACTORY INSTALLED JUMPER.
HEAT
RELAY
THERMOSTAT WIRING TERMINALS

TH5110D NON-PROGRAMMABLE THERMOSTAT
5 69-1712—1
Fig. 10. Typical hookup of heat only system with fan.
Fig. 11. Typical hookup of heat only Series 20
system.
Fig. 12. Typical hookup of cool only system.
Fig. 13. Typical hookup of a heat only system with a
normally open zone valve.
M22072
G
O/B W
Y
C
R
Rc
L1
(HOT)
L2
R
C
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
1
2
3OPTIONAL 24 VAC COMMON CONNECTION.
FACTORY INSTALLED JUMPER.
HEAT
RELAY
FAN
RELAY
THERMOSTAT WIRING TERMINALS
M22073
G
O/B W
Y
C
R
Rc
L1
(HOT)
L2
R
C
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
1
2
3OPTIONAL 24 VAC COMMON CONNECTION.
4
4
CONFIGURE SYSTEM TYPE TO HEAT ONLY IN THE INSTALLER SETUP.
FACTORY INSTALLED JUMPER.
TR TR
POWER TO OPEN
AND POWER TO
CLOSE
MOTOR OR VALVE
(SERIES 20)
B W R
THERMOSTAT WIRING TERMINALS
M22074
G
O/B W
Y
C
R
Rc
L1
(HOT)
L2
R
C
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
1
2
3OPTIONAL 24 VAC COMMON CONNECTION.
FACTORY INSTALLED JUMPER.
COMPRESSOR
CONTACTOR
FAN
RELAY
THERMOSTAT WIRING TERMINALS
M22075
G
O/B W
Y
C
R
Rc
L1
(HOT)
NORMALLY
OPEN
ZONE VALVE
L2
R
C
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
1
2
3OPTIONAL 24 VAC COMMON CONNECTION.
FACTORY INSTALLED JUMPER.
4CONFIGURE SYSTEM TYPE TO HEAT ONLY IN THE INSTALLER SETUP.
THERMOSTAT WIRING TERMINALS
4

TH5110D NON-PROGRAMMABLE THERMOSTAT
69-1712—1 6
POWER THE THERMOSTAT
You can choose from three methods to power the
thermostat:
• Batteries only (AAA alkaline).
• 24 Vac common wire only.
• 24 Vac common wire with battery backup (AAA
alkaline).
NOTE: Battery backup prevents blank displays during
power interruptions.
Wiring 24 Vac Common
• Single-Transformer System—Connect the common
side of the transformer to the C screw terminal of the
thermostat wallplate. Leave the metal jumper in place
between Rc and R.
• Two-Transformer System—Connect the common side
of the cooling transformer to the C screw terminal of
the thermostat wallplate. Remove the metal jumper
between Rc and R.
Installing Batteries
Install two AAA alkaline batteries on the back of the
thermostat as marked on the battery holder. See Fig. 14.
NOTE: After the thermostat is mounted on the
wallplate, the thermostat does not require
removal from the wallplate to replace the
batteries. Refer to the enclosed Operating
Instructions, 69-1713, for more information on
the removable battery holder.
Fig. 14. Installing batteries.
Mount Thermostat to Wallplate
1. Align the four tabs on the wallplate with the four
slots on the back of the thermostat. Push the
thermostat straight onto the wallplate until it snaps
into place. See Fig 15.
Fig. 15. Mount thermostat to wallplate.
BACK OF THERMOSTAT
M22056
BATTERY HOLDER
BATTERIES
TABS
TABS
WALLPLATE
G
Y
R
Rc
M22078
W(O/B)
C
SLOTS ON
BACK OF
THERMOSTAT

TH5110D NON-PROGRAMMABLE THERMOSTAT
7 69-1712—1
INSTALLER SETUP
Configure Installer Setup
1. Enter Installer Setup by pressing and holding the
Up and Fan buttons, at the same time, for
approximately five seconds, until the screen
changes. See Fig. 16.
Fig. 16. Enter Installer setup.
2. Release the Up and Fan buttons when the
display on the thermostat matches the display
in Fig. 17.
Fig. 17. Configure Installer Setup.
3. See Fig. 18 to review how the thermostat buttons
are used during Installer Setup. See Table 3 for the
Installer Setup Numbers and Settings.
Fig. 18. Review thermostat buttons used for Installer
Setup.
Replace Batt
Se
rvi
ce
N
eeded
Settin
g
C
oo
l
In
s
i
de
F
an
A
u
t
o
Cool
System
M22079
Replace Batt
Se
rvi
ce
N
eeded
D
o
n
e
N
e
x
t
M22143
Replace Batt
Se
rvi
ce
N
eeded
D
o
n
e
N
e
x
t
M22144
SETTI N G
I
N
S
T A LLE R
S
ET
U P
NU M B E R
N
EXT BU TTO N
ADVANCES TO NEXT
INSTALLER SETUP
NUMBER
D O N E BU TTO N
EXITS THE
INSTALLER SETUP
AND SAVES YOUR SETTINGS
U P BU TTO N
CHANGES SETTING
D OW N BU TTO N
CHANGES SETTING

TH5110D NON-PROGRAMMABLE THERMOSTAT
69-1712—1 8
Installer Setup Numbers and Settings
Installer Setup Notes:
a—Installer Setup Number 2 does not appear if Installer Setup Number 1 is set to 0, 2, 3 or 4.
b—Installer Setup Number 3 does not appear if Installer Setup Number 1 is set to 1, 2 or 4.
c—Installer Setup Number 5 does not appear if Installer Setup Number 1 is set to 1 or 4.
d—Installer Setup Number 9 does not appear if Installer Setup Number 1 is set to 2 or 3.
e—Installer Setup Number 12 does not appear if Installer Setup Number 1 is set to 2, 3 or 4.
f— Installer Setup Number 15 does not appear if Installer Setup Number 1 is set to 2 or 3.
Table 3. Installer setup numbers and settings.
Installer Setup
Number Installer Setup Name Settings
1System Type 0—gas, oil or electric heat with air conditioning (Factory Setting)
1—Heat pump
2—Heat only (two-wire systems or power to open and power to
close zone valves or normally-open zone valves)
3—Heat only with fan
4—Cool only
2
May not appear.
See Note a
Changeover Valve-O/B
Terminal Energized in
Heating or Cooling
(Heat Pumps only)
0—Changeover valve—O/B terminal energized in cooling
(Factory Setting)
1—Changeover valve—O/B terminal energized in heating
3
May not appear.
See Note b
Fan Control in Heating 0— Gas or oil furnace—equipment controls fan in heating
(Factory Setting)
1— Electric furnace—thermostat controls fan in heating
5
May not appear.
See Note c
Heating Cycle Rate in
cycles per hour (cph)
5—5 cph used for gas or oil furnaces (less than 90% efficient)
(Factory Setting)
1—1 cph used for steam and gravity
3 —3 cph used for hot water and high efficiency furnaces (90%+)
9—9 cph used for electric furnaces
2, 4, 6, 7, 8, 10, 11, 12—Other cycle rate settings
9
May not appear.
See Note d
Compressor Cycle Rate
in cycles per hour (cph)
3—3 cph recommended for compressors (Factory Setting)
1, 2, 4, 5, 6—Other cycle rate settings
12
May not appear.
See Note e
System Setting
Adjustment
0—Manual changeover (Factory Setting) (Heat, Off, Cool)
1—Auto changeover (Heat, Off, Cool, Auto)
2—Auto changeover only (Auto)
14 Temperature Display 0—Fahrenheit temperature display (Factory Setting)
1—Celsius temperature display
15
May not appear.
See Note f
Compressor
Protection—
Minimum-Off Timer in
minutes
5—Five-minute compressor off-time setting (Factory Setting)
0, 1, 2, 3, 4—Other compressor off-time settings
Press the Next button to go to the beginning of the Installer Setup or press the Done button to exit the
Installer Setup and save your settings.

TH5110D NON-PROGRAMMABLE THERMOSTAT
9 69-1712—1
INSTALLER SYSTEM TEST
Use the Installer System Test to test the heating, cooling
and fan.
CAUTION
Equipment Damage Hazard.
Minimum compressor off time is bypassed
during Installer System Test
Avoid cycling compressor quickly.
How to Use the Installer System Test
1. Enter the Installer System Test by pressing and
holding down the Up and Down buttons at the
same time for approximately five seconds, until the
screen changes. See Fig. 19.
Fig. 19. Enter Installer System Test.
2. See Fig. 20 to review how the thermostat buttons
are used during the Installer System Test. See
Table 4 for available Installer System Tests.
Fig. 20. Review thermostat buttons used during
Installer System Test.
Installer System Tests
IMPORTANT
Use the Installer System Test to test the
heating, cooling and fan. The setting you
choose for System Type (Installer Setup
Number 1) may prevent some System Test
Numbers from appearing.
Replace Batt
Se
rvi
ce
N
eeded
F
an
A
u
t
o
C
oo
l
System
M22145
Replace Batt
Se
rvi
ce
N
eeded
D
o
n
e
N
e
x
t
M22146
SYSTE M
ST A T U S
NU M B E R
SYSTE M
TEST
NU M B E R
D
O N E BU TTO N
EXITS THE INSTALLER
SYSTEM TEST
D OW N BU TTO N
TURNS THE
SYSTEM OFF
U P BU TTO N
TURNS THE
SYSTEM ON
N EXT BU TTO N
ADVANCES TO NEXT
SYSTEM TEST NUMBER
Table 4. Installer System Tests.
System Test Number Test Type System Status Number and Description
10 Heating System Test 1—Heat turns on. When Installer Setup Number
1 is set to 1 or Installer Setup Number 3 is set to
1, the fan turns on immediately.
0—Heat and fan turns off.
30 Cooling System Test 1—Compressor and fan turns on.
0—Compressor and fan turns off.
40 Fan System Test 1—Fan turns on.
0—Fan turns off.
70 Thermostat Information
(For reference only)
71—Software revision number (Major)
72—Software revision number (Minor)
73—Configuration identification code (Major)
74—Configuration identification code (Minor)
75—Production configuration date code (Week)
76—Production configuration date code (Year)
Press the Next button to go to the beginning of the Installer System Test or press the Done button to exit the
Installer System Test.

TH5110D NON-PROGRAMMABLE THERMOSTAT
69-1712—1 10
THERMOSTAT OPERATION
Thermostat Buttons and Battery Holder
See Fig. 21 for description of thermostat buttons and
battery holder.
Fig. 21. Review thermostat button description.
Display
See Fig. 22 for description of display.
Fig. 22. Review display description.
System and Fan Settings
System
Heat—Thermostat controls the heating system.
Off—Both heating and cooling systems are off.
Cool—Thermostat controls the cooling system.
Auto—Thermostat automatically changes between
heating and cooling operation, depending on indoor
temperature.
Fan
Auto —Fan runs only when the heating or cooling
system is on.
On—Fan runs continuously.
Minimum-Off Timer Compressor
Protection
The TH5110 has an adjustable Minimum-Off Timer that
can be set from zero to five minutes (Factory Setting—
five minutes). The Minimum-Off Timer can be bypassed
through the Installer System Test or it can be bypassed
permanently by setting the Minimum-Off Timer to 0
minutes in the Installer Setup.
The Minimum-Off Timer is activated after the compressor
turns off.
If the thermostat is system powered (common wire), the
Minimum-Off Timer is also activated upon initial startup
and after power interruptions.
If there is a call for cooling or heating during the
Minimum-Off Time, the thermostat flashes “Cool On” or
“Heat On”a. When the Minimum Off Timer expires, “Cool
On” or “Heat On” a appears solid in the display and the
compressor and fan turn on.
______________
aHeat Pumps only.
Accessories/Replacement Parts
1. Cover Plates (see Fig. 23):
50001137-001 (Small) Cover Plate—
4-5/16 in. (109 mm) high x
5-1/2 in. (140 mm) wide.
50002883-001(Large) Cover Plate—
6 in. (152 mm) high x
8-5/16 in. (211 mm) wide.
Fig. 23. Cover plate.
2. Replacement Battery Holder (see Fig. 24):
50000951-001 Battery Holder.
Fig. 24. Battery holder.
CoolOn
Setting
Cool
Inside
Fan
Auto Cool
System
D IGIT A L D ISPL A Y
F
AN BU TTO N
SYSTE M BU TTO N
TE M PE RA T UR E
SETTI
N G BU TTO N
TE M PE RA T UR E
SETTI
N G BU TTO N
BA
TTE R Y
H OL D E R
BA
TTE R Y H OL D E R L A T CH
M22084
PRESS TO RELEASE
BATTERY HOLDER
RAISES
TEMPERATURE
SETTING
TWO AAA
ALKALINE
BATTERIES
LOWERS
TEMPERATURE
SETTING
SELECTS HEAT, OFF, COOL OR AUTO
SELECTS AUTO OR ON
PRESS
Replace Battery
H
eat
C
oo
l
On
On
In
s
i
de
S
ettin
g
CoolH
ea
t
H
eat
Cool
AutoOff
Sy
ste
m
F
an
O
n Aut
o
INSIDE
TE
M
PERAT
U
R
E
TEMPERATURE
SETTING
INDICATES
THERMOSTAT IS
"CALLING" FOR
HEAT OR COOL
CURRENT
SYSTEM SETTING
M22083
CURRENT
FAN SETTING
INDICATES BATTERIES ARE
LO
W AND M
US
T BE REPLA
C
E
D
M22185
Replace Batter
y
Service Needed
In
s
i
de
C
oo
l
S
y
ste
m
F
an
A
u
t
o
BATTERY HOLDER
LATCH
BATTERY HOLDER
M22111