Honeywell 1-Heat/1-Cool - TH5110D1022 Large R User manual

OPERATING INSTRUCTIONS
Patents Pending
® U.S. Registered Trademark
© 2004 Honeywell International Inc.
All Rights Reserved
69-1713
Operating Instructions
TH5110D
Non-programmable Thermostat
The TH5110D Thermostat provides electronic control of 24 Vac single-
stage heating and cooling systems or 750 mV heating systems.
For assistance with your Honeywell product please visit
www.honeywell.com/yourhome or call Honeywell Customer Care
toll free at 1-800-468-1502.
Read and Save these Instructions
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2 69-1713
Contents
Features........................................................................3
Get to Know Your Thermostat ......................................4
Thermostat...............................................................4
Display .....................................................................5
Operate Your Thermostat .............................................6
Set System Setting ..................................................6
Set Fan Setting ........................................................7
Change Temperature Setting...................................8
Replace Batteries .........................................................9
Review Battery Tips......................................................13
Built-in Compressor Protection .....................................14
Auto Changeover..........................................................15
Replacement Part.........................................................19
Troubleshooting Tips ....................................................20
Customer Assistance....................................................23
Limited Five-Year Warranty ..........................................24
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69-1713 3
Features
• Large, Clear, Backlit Display: Easy-to-see and
read—even in the dark.
• Precise Comfort Control: ±1ºF of your set
temperature.
• Simplified Operation: Soft-key controls.
Simultaneously displays both room temperature
and temperature setting.
• Easy Change Battery Holder.
• Built-in Compressor Protection: Minimum-off
timer protects compressor from restarting too
early after a shutdown.
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4 69-1713
Get to Know Your Thermostat
Thermostat
CoolOn
Setting
Cool
Inside
Fan
Auto Cool
System
DIGITAL DISPLAY
FAN BUTTON
SYSTEM BUTTON
TEMPERATURE
SETTING BUTTON
TEMPERATURE
SETTING BUTTON
BATTERY
HOLDER
BATTERY HOLDER LATCH
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
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69-1713 5
Get to Know Your Thermostat (Cont)
Display
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
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6 69-1713
Operate Your Thermostat
Set System Setting
Press the System button to select Heat, Off, Cool or Auto:
Heat—Thermostat controls the heating system.
Off—Both the 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. See Auto Changeover section.
CAUTION
Equipment Damage Hazard.
Air conditioning compressor damage possible.
Do not operate cooling system when outdoor temperature is
below 50
°
F (10
°
C).
M22107
PRESS THE
SYSTEM BUTTON
TO SELECT HEAT,
OFF, COOL OR AUTO.
Replace Batt
Se
rvi
ce
N
eeded
F
an
A
u
t
o
C
oo
l
System
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69-1713 7
Operate Your Thermostat (Cont)
Set Fan Setting
Press the Fan button to select Auto or On:
Auto—Normal setting for most homes. The fan runs
only when the heating or cooling system is on.
On—The fan runs continuously. Use this setting for
improved air circulation or for more efficient air
cleaning.
M22108
PRESS THE
FAN BUTTON
TO SELECT
AUTO OR ON.
Replace Batt
C
oo
l
On
Se
rvi
ce
N
eeded
S
ettin
g
Cool
In
s
i
de
F
an
A
u
t
o
Cool
System
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8 69-1713
Operate Your Thermostat (Cont)
Change Temperature Setting
Press the Up or Down button to select the desired
temperature setting.
The first press of the Up or Down button turns on
the backlight. The second press of the Up or Down
button changes the temperature setting.
PRESS THIS BUTTON TO
RAISE THE TEMPERATURE
SETTING
TEMPERATURE SETTING
M22109
TEMPERATURE SETTING RANGE:
HEAT: 40°TO 90°F (4.5°T0 32°C)
COOL: 50°TO 99°F (10°T0 37°C)
PRESS THIS BUTTON TO
LOWER THE
TEMPERATURE
SETTING
Replace Batt
Cool
On
Se
rvi
ce
N
eeded
In
s
i
de
F
an
A
u
t
o
C
oo
l
System
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69-1713 9
Replace Batteries
AA alkaline batteries.
1. When the Replace Battery indicator is flashing,
replace batteries promptly with two fresh
AAA alkaline batteries.
The thermostat does not lose any settings when the
batteries are replaced; all settings are permanently
stored in memory.
Replace Battery
Service Needed
In
s
i
de
Settin
g
Cool
C
oo
l
Sy
stemF
an
A
u
t
o
REPLACE BATTERY INDICATOR
M22110
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10 69-1713
Replace Batteries (Cont)
2. Press the battery holder latch to release the battery
holder.
3. Remove the battery holder from the thermostat.
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
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69-1713 11
Replace Batteries (Cont)
4. Remove the old batteries and insert two fresh AAA
alkaline batteries as marked on the battery holder.
M22017
BATTERY
HOLDER
PUSH
BATTERIES
OUT
THROUGH
THIS HOLE
BATTERY
DIRECTION
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12 69-1713
Replace Batteries (Cont)
5. Insert battery holder as shown.
Battery Tips
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
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69-1713 13
Review Battery Tips
1. Replace the batteries as soon as Replace
Battery flashes in the display. The Replace Battery
indicator flashes in the display two months before
the batteries run down completely.
2. Always use fresh AAA alkaline batteries. Non-
alkaline batteries do not last as long and can leak,
causing damage to the thermostat.
3. Although the thermostat has a Replace Battery
indicator, replace the batteries once per year to
prevent the thermostat and heating/cooling system
from shutting down due to a lack of battery power.
NOTE: Replacing the batteries once a year also helps
prevent battery leakage that can damage the
thermostat.
4. As a precaution, replace the batteries when leaving
your home for more than a month to prevent your
heating/cooling system from shutting down if the
batteries run down completely.
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14 69-1713
Built-in Compressor Protection
The TH5110D Thermostat has built-in compressor
protection (minimum-off timer) that prevents the
compressor from restarting too early after a shutdown.
The minimum-off timer is activated after the compressor
turns off.
If there is a call during the minimum-off timer, the
thermostat flashes “Cool On” or “Heat On”
a
in the display.
When the minimum-off timer expires, “Cool On” or
“Heat On”
a
appears solidly in the display and the
compressor and the fan turn on.
_________
a
Heat Pumps only.
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69-1713 15
Auto Changeover
Auto Changeover is a feature used in climates where
both air conditioning and heating are used on the same
day. The Auto setting appears only if the thermostat is set
up for Auto Changeover by your heating and air
conditioning dealer. In some installations, Auto may be
the only system selection.
The following pages in this Auto Changeover section
provide an example of how to change both the cool and
heat temperature settings when the system is set to Auto.
When you are adjusting the temperature setting, if
“!Cool” or “"Heat” appear in the display, the
temperature setting of the opposite mode is also being
adjusted. The thermostat automatically keeps the cool
and heat temperature settings three degrees apart
(called deadband). This three-degree deadband is not
adjustable.
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16 69-1713
Auto Changeover (Cont)
1. Press the System button to change the System
setting to Auto.
The Auto setting appears only if the thermostat is
set up for Auto Changeover by your heating and air
conditioning dealer.
M22113
PRESS THE
SYSTEM BUTTON
TO CHANGE
SYSTEM SETTING
TO AUTO.
Replace Batt
Cool
On
Se
rvi
ce
N
eeded
F
an
A
u
t
o
C
oo
l
System
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69-1713 17
Auto Changeover (Cont)
2. Press the Up or Down button to raise or lower the
cool temperature setting.
3. Press the Select Heat/Cool button to display
the Heat temperature setting. “Select Heat/Cool”
flashes for six seconds.
PRESS THIS BUTTON TO
RAISE THE TEMPERATURE
SETTING
TEMPERATURE SETTING
M22114
PRESS THIS BUTTON TO
LOWER THE TEMPERATURE
SETTING
Replace Batt
S
ervice Neede
d
F
an
A
u
t
o
H
ea
t
/
Cool
Select
SELECT HEAT/
COOL BUTTON
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18 69-1713
Auto Changeover (Cont)
4. Press the Up or Down button to raise or lower the
heat temperature setting.
5. “Select Heat/Cool” stops flashing six seconds after
the last button press. The thermostat then returns
to displaying “Auto” for the System setting.
PRESS THIS BUTTON
TO RAISE THE
TEMPERATURE
SETTING
TEMPERATURE
SETTING
M22116
PRESS THIS BUTTON
TO LOWER THE
TEMPERATURE
SETTING
Se
rvi
ce
N
eeded
S
ettin
g
H
eat
In
s
i
de
F
an
A
u
t
o
Heat
/C
oo
l
Select
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69-1713 19
Replacement Part
1. Replacement Battery Holder—
Part number 50000951-001 Battery Holder.
To order, call your heating and air conditioning
dealer or call Honeywell Customer Care at
1-800-468-1502.
M22018
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20 69-1713
Troubleshooting Tips
If . . . Then . . .
Display is
blank.
•Check circuit breaker to be sure it is not
tripped.
•Check power switch at heating and/or
cooling system to be sure it is on.
•Check furnace door to be sure it is
closed securely.
•If you use batteries, check that fresh
AAA alkaline batteries are installed as
marked on the battery holder.
Temperature
settings do
not change.
Check that the temperature settings are:
•Heating 40°F to 90°F (4.5°C to 32°C).
•Cooling 50°F to 99° F (10°C to 37°C).
Heating
system does
not turn on.
•Set the system to Heat by pressing the
System button.
•Check that the heat temperature setting
is set above the room temperature and
“Heat On” shows solidly in the display.
•Check the circuit breaker to be sure it is
not tripped.
•Check power switch at the heating and/
or cooling system to be sure it is on.
•Check the furnace door to be sure it is
closed securely.
•Wait five minutes for the heating system
to respond.
•If all of this was checked, contact your
local heating and cooling contractor.
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