Blue 2” Single Stage Thermostat
Installation and Operating Instructions
Save these instructions for future use!
Model
Programming Choices
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATING THIS
CONTROL COULD CAUSE PERSONAL INJURY AND/OR
PROPERTY DAMAGE.
1F80-0224
24-hour Programmable
APPLICATIONS
1F80-0224 Thermostat
For use with the following Class II systems:
•
•
Single Stage systems
Single-stage heat pump systems with no Aux heat
DO NOT USE WITH:
•
Systems exceeding 30 VAC and 1.5 amps
•
3-wire zoned hydronic heating systems
SPECIFICATIONS
Electrical Rating:
Battery Power................................................. mV to 30 VAC, 50/60 Hz or DC
Input-Hardwire................................................ 20 to 30 VAC
Terminal Load........................................................ 1.0 A per terminal, 1.5A maximum all terminals combined
Setpoint Range...................................................... 45° to 90°F (7° to 32°C)
Differential (Single Stage)...................................... Heat 0.6°F; Cool 1.2°F (adjustable)
Differential (Heat Pump)........................................ Heat 1.2°F; Cool 1.2°F (adjustable)
Operating Ambient................................................. 32° to +105°F (0° to +41°C)
Operating Humidity................................................ 90% non-condensing max.
Shipping Temperature Range................................ -40° to +150°F (-40° to +65°C)
Dimensions Thermostat......................................... 3-3/4”H x 4-3/4”W x 1-1/2”D
PRECAUTIONS
This thermostat is intended for use with a low voltage NEC
WARNING
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
!
Class II system. Do not use this thermostat with a line voltage
system. If in doubt about whether your wiring is millivolt, line,
or low voltage, have it inspected by a qualified heating and air
conditioning contractor or electrician.
Do not exceed the specification ratings.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/or
property damage.
All wiring must conform to local and national electrical codes
and ordinances.
This control is a precision instrument, and should be handled
carefully. Rough handling or distorting components could
cause the control to malfunction.
Thermostat installation and all components of the
system shall conform to Class II (current limited)
circuits per the NEC code. Failure to do so could cause
a fire hazard.
CAUTION
!
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
PART NO. 37-7014B
Replaces 37-7014A
0924
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INSTALLATION
automatically start the heating system at 5:00 AM, so that the
programmed temperature of 70°F is reached by about 6:00
AM.
ENERGY MANAGEMENT RECOVERY
(EMR)
When the EMR feature is activated the thermostat’s
microcomputer calculates the time it will take to change the
room temperature to the next heat or cool program setting.
Then the thermostat will start the system before the next
programmed period so that the desired temperature is reached
at or near the beginning of the period (the thermostat calculates
15 minutes for every 1°F temperature change). This feature
provides better efficiency by allowing gradual temperature
changes.
If the overnight room temperature drops only to 68°F, the
thermostatwillstartthesystemat5:30toreachtheprogrammed
temperature of 70°F at 6:00.
The thermostat is shipped with the EMR feature active, which
means that the thermostat will start the heating system before
the beginning of the next program period.
To deactivate the EMR function, see the Configuration menu
on Page 5).The thermostat will then wait until the programmed
time to start the system for a temperature change.
For example: The thermostat is programmed to provide an
overnight heating temperature of 66°F, and during the next
program period, beginning at 6:00 AM, the programmed
temperature is 70°F. With EMR activated, the thermostat will
WIRING DIAGRAMS
Optional Jumper for
Single Stage Heat Pump
THERMOSTAT
R
O/B
Y
G
W
C
SYSTEM
Changeover
Relay*
Fan
Relay
Optional
Compressor
Contactor
Heat Relay
Hot
24 VAC
120 VAC
Neutral
* Changeover Relay is energized in COOL when O/B switch is in the “O” position
Changeover Relay is energized in HEAT when O/B switch is in the “B” position
TRANSFORMER
(Class II Current Limited)
Figure 2.Typical wiring diagram for single transformer single stage systems
NOTE
If safety circuits are in
only one of the systems,
remove the transformer
of the system with NO
safety circuits.
Optional Jumper for
Single Stage Heat Pump
THERMOSTAT
SYSTEM
O/B
Y
G
W
C
R
CUT AND
TAPE OFF!
Changeover
Relay*
Fan
Relay
Limit or
Safety
Switches
Optional
HOT
120 VAC
24 VAC
Compressor
Contactor
Heat Relay
NEUTRAL
Hot
24 VAC
120 VAC
Neutral
TWO COMMONS MUST
BE JUMPERED TOGETHER!
TRANSFORMER
(Class II Current Limited)
* Changeover Relay is energized in COOL when O/B switch is in the “O” position
Changeover Relay is energized in HEAT when O/B switch is in the “B” position
Figure 3.Typical wiring diagram for two transformer single stage systems with NO safety circuits
3
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WIRING DIAGRAMS
NOTE
Polarity must be observed. If the HOT side of the
second transformer is jumpered to the COMMON side
of the first transformer a short will be made. Damage
to equipment will occur when power is restored.
Optional Jumper for
Single Stage Heat Pump
THERMOSTAT
O/B
Y
G
W
C
R
SYSTEM
Limit or
Safety
Limit or
Safety
Switches
HOT
Switches
24 VAC
120 VAC
Changeover
Relay*
Fan
Relay
NEUTRAL
Optional
24 VAC
Auxiliary
Heating
Transformer
(Class II
NOTE
ACCESSORY
RELAY N.O.
CONTACT
The accessory relay scheme
is required when safety
circuits exist in both systems.
Compressor
Contactor
Heat
Relay
Current Limited)
COMMON
TWO COMMONS MUST
BE JUMPERED TOGETHER!
Limit or
Limit or
Safety
Switches
Safety
HOT
Switches
COMMON
24 VAC
120 VAC
NEUTRAL
* Changeover Relay is energized in COOL when O/B switch is in the “O” position
Changeover Relay is energized in HEAT when O/B switch is in the “B” position
Heat Pump Transformer
(Class II Current Limited)
Figure 4.Typical wiring diagram for two transformer single stage systems with safety circuits in BOTH systems
THERMOSTAT QUICK REFERENCE
12
13
Before you begin programming your thermostat, you should be
familiar with its features and with the display and the location
and operation of the thermostat buttons and switches (see
fig. 5). Your thermostat consists of two parts: the thermostat
cover and the base. To remove the cover, pull it straight out
from the base. To replace the cover, line up the cover with the
base and press until the cover snaps onto the base.
Displays current temperature.
“Service”indicatesadiagnosticfaultintheheating/cooling
system. It does not indicate a fault in the thermostat.
14
15
“Change Filter” is displayed when the system has run for
the programmed filter time period as a reminder to change
or clean your air filter.
“
” indicates power level of batteries. “Change
”
indicates batteries should be replaced.
The Thermostat Buttons and Switches
16
17
18
Indicates time.
1
2
3
4
5
6
7
Raises temperature setting.
Lowers temperature setting.
TIME button.
“A”“P” indicates time as Morning (A) Evening (P).
“Temp Hold”indicates temporary hold or“Hold” indicates
hold mode.
SYSTEM switch (COOL, OFF, HEAT, EMER).
PRGM (program) button.
FAN switch (ON, AUTO).
RUN/HOLD (program) button.
Figure 5.Thermostat display, buttons, and switches
1
2
The Display
Indicates days of the week.
Indicates setpoint temperature.This is blank when system
switch is in the OFF position. Setpoint temperature is
displayed (flashing) if the thermostat is in lockout mode to
prevent the compressor from cycling too quickly.
8
9
SYSTEM
10
11
“Save” indicates the Cool Savings feature is enabled in
the configuration menu. “Save” (flashing) indicates Cool
Savings feature is active.
3
4
7
6
5
Flame icon ( ) is displayed when the SYSTEM switch is
in the HEAT position. Flame icon ( ) is displayed flashing
when thermostat is calling for heat. Snowflake icon ( )
is displayed (non-flashing) when the SYSTEM switch is in
the COOL position. Snowflake icon ( ) and is displayed
(flashing) if the thermostat is calling for cool.
17
13
18
8
9
16
15
10
14
12
11
4
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INSTALLER/CONFIGURATION MENU
The configuration menu allows you to set certain thermostat operating characteristics to your system or personal requirements.
To enter the menu: Set your thermostat to OFF and press the
and
buttons simultaneously. The display will show the
first item in the configuration menu. Press RUN/HOLD to change to the next menu item or press TIME to go backwards to the
previous item in the menu. To exit the menu and return to the program operation, press PRGM. If no keys are pressed within
fifteen minutes, the thermostat will revert to normal operation.
Configuration Menu
Menu
Reference
Number
Press
Key
Displayed
(Factory
Default)
Comments
Press
to select from
listed options
or
1
SS
HP
Select Single Stage (SS) or
and
Heat Pump (HP, 1 compressor)
2
RUN/HOLD*
RUN/HOLD*
RUN/HOLD*
RUN/HOLD*
RUN/HOLD*
RUN/HOLD*
RUN/HOLD*
RUN/HOLD*
RUN/HOLD*
RUN/HOLD*
RUN/HOLD*
RUN/HOLD*
CS
(OFF)
On
Select Cool Savings Feature On or OFF
CS
(3)
1, 2, 3, 4, 5, 6
OFF
If CS selected On, selects Cool Savings value
Select Energy Management Recovery On or OFF
3
4
E
(On)
CR Heat
(ME)
FA, SL
SL
Select Adjustable Anticipation, cycle rate,
Heat Single Stage
5
CR Cool
(FA)
Select Adjustable Anticipation, cycle rate,
Cool Single Stage
6
CL
(OFF)
On
Select Compressor lockout OFF or On
7
L
(On)
OFF
Select Display Light On or OFF
8
Temp
(0 HI)
oF
4 LO to
4 HI
Select temperature display adjustment higher or
lower
Select oF / oC Display (temperature units in Fahren-
heit or Celsius)
9
oC
10
Change Filter
(OFF)
On
Select filter replacement indicator OFF or On
Change Filter
(200 h)
25 to 1975
If Change Filter selected On, selects time interval for
Change Filter Indicator. (in 25 hour increments)
11
Returns to normal operation
*Press RUN/HOLD to advance to next item or TIME to move backwards to previous item
occur when the cooling system is continuously running
1) System Configuration - Selects SS (Single Stage) or HP
(Heat Pump) operating mode. Default configuration is SS.
For Heat Pump operation choose HP.
during the periods of high demand. Periods of high demand
will normally occur during the late afternoon and early
evening on the hottest days of the summer.
2) Select CS (Cool Savings™) - With Cool Savings™
enabled, the thermostat will make small adjustments to
the Setpoint temperature during periods of high demand
to reduce cooling system running time and save energy.
When the cooling system has been running for more than
20 minutes, humidity in the home will be lower and a higher
setpoint temperature will feel comfortable. After 20 minutes
of run time, the thermostat will start increasing the setpoint
temperature in steps of less than one degree as the system
continues to run. These adjustments will eventually cause
the system to satisfy the thermostat and turn the system off
to reduce the energy consumption.When the Cool Savings
feature is active and making adjustments, the display will
show “Save”.The amount of the adjustments to the setpoint
temperature is dependent on the Cool Savings value that
is set, 1 being the least adjustment and 6 being the most
adjustment. With this feature set to OFF, no change will
3) Select Energy Management Recovery
-
Energy
Management Recovery (E) On enables the thermostat
to start heating or cooling early to make the building
temperature reach the program setpoint at the time you
specify. Heating will start 5 minutes early for every 1° of
temperature required to reach setpoint.
4 & 5) Select Cycle Rate Selection - The factory default
setting for Single Stage Heat is Medium Cycle (ME). For
Single Stage Cool the default setting is fast (FA).To change
cycle rate, press the
and
buttons.
The cycle rate differentials for different settings are:
MODE
Fast
(FA)
Medium
(ME)
0.8°F
-
Slow
(SL)
SS Heat
SS Cool
0.6°F
1.2°F
1.2°F
1.7°F
5
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INSTALLER/CONFIGURATION MENU
6) Select Compressor Lockout CL OFF or ON - Selecting
CL On will cause the thermostat to wait 5 minutes between
cooling cycles. This is intended to help protect the
compressor from short cycling. Some newer compressors
already have a time delay built in and do not require this
feature. Your compressor manufacturer can tell you if the
lockout feature is already present in their system.When the
thermostat compressor time delay occurs, it will flash the
setpoint for up to five minutes.
8) Select Temperature Display Adjustment 4 LO to 4 HI -
Allows you to adjust the room temperature display up to 4°
higher or lower. Your thermostat was accurately calibrated
at the factory but you have the option to change the display
temperature to match your previous thermostat. The
current or adjusted room temperature will be displayed on
the display.
9) Select F° or C° Readout - Changes the display readout to
Celsius or Fahrenheit as required.
7) Select Backlight Display - The display backlight improves
display contrast in low lighting conditions. When the “C”
terminal is connected, selecting backlight CdL On will keep
the light on continuously. Select backlight OFF will turn the
light on momentarily when any key is pressed. When the
“C” terminal is not connected, regardless of the backlight
selection, the light will be on momentarily when any key is
pressed.
10) Select Filter Replacement Reminder and Set Run
Time Select the “Change Filter” reminder On or OFF. If
selected On, press RUN/HOLD to select the time period
from 25 to 1975 hours in 25 hour increments. In a typical
application, 200 hours (default) of run time is approximately
30 days. After the selected time of blower operation, the
thermostat will display “Change Filter” as a reminder to
change or clean your air filter. When “Change Filter” is
displayed, press the RUN/HOLD button to clear the display
and restart the time to the next filter change. A selection of
OFF will cancel this feature.
OPERATION
3. Press
to adjust temperature setting above room
CHECK THERMOSTAT OPERATION
If at any time during testing your system does not operate
temperature. The cooling system should stop operating.
properly, contact a qualified service person.
Turn on power to the system.
CAUTION
!
Do not allow the compressor to run unless the
compressor oil heaters have been operational for 6
hours and the system has not been operational for at
least 5 minutes.
Fan Operation
If your system does not have a G terminal connection, skip to
Heating System.
1. Move fan switch to ON position.The blower should begin to
operate.
MANUAL OPERATION
2. Move fan switch to AUTO position. The blower should stop
•
•
HOLD TEMPERATURE — With the SYSTEM switch set
to HEAT or COOL, momentarily press RUN/HOLD button.
immediately.
HOLD will be displayed. Use
or
to adjust the
Heating System
temperature.The thermostat will hold the room temperature
at the selected setting until you press RUN/HOLD button to
start program operation again.
1. Move SYSTEM switch to HEAT position. If the auxiliary
heating system has a standing pilot, be sure to light it.
2. Press
to adjust thermostat setting to 1° above room
TEMPERATURE OVERRIDE (TEMPORARY HOLD)
—
temperature. The system should begin to operate.
Press or untilthetemperatureyouwantisdisplayed.
The thermostat will override current programming and
keep the room temperature at the selected temperature for
2 hours or until the next program period begins. Then the
thermostat will automatically revert to the program.
3. Press
to adjust temperature setting below room
temperature. The heating system should stop operating.
Cooling System
CAUTION
!
To prevent compressor and/or property damage, if the
outdoor temperature is below 50oF, DO NOT operate
the cooling system.
1. Move SYSTEM switch to COOL position.
2. Press
to adjust thermostat setting below room
temperature. The blower should come on immediately on
high speed, followed by cold air circulation. However, if the
setpoint temperature is flashing, the compressor lockout
feature is operating (see Configuration menu, item 6).
6
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PROGRAMMING
3. Press TIME once again. The display window will show the
minutes only.
PROGRAMMINGYOUR THERMOSTAT
This section will help you plan your thermostat’s program to
meet your needs. For maximum comfort and efficiency, keep
EXAMPLE:
the following guidelines in mind when planning your program.
4. Press and hold either
minutes.
or
until you reach the correct
•
When heating (cooling) your building, program the
temperatures to be cooler (warmer) when the building is
vacant or during periods of low activity.
5. Press TIME once again. The display will show the day of
the week.
•
During early morning hours, the need for cooling is usually
minimal.
6. Press
week.
or
until you reach the current day of the
7. Press RUN/HOLD once. The display will show the correct
time, day, room temperature and set-point temperature.
PlanningYour Program
Look at the factory preprogrammed times and temperatures
shown in the sample schedule. If this program will suit your
needs, simply press the RUN/HOLD button to begin running
the factory preset program.
Enter Heating Program
1. Move the SYSTEM switch to HEAT.
If you want to change the preprogrammed times and
temperatures, follow these steps.
2. Press PRGM once. “Mo Tu We Th Fr Sa Su” (indicating
daily program) will appear in the display. Also displayed
are the currently programmed start time for the 1st
heating period and the currently programmed temperature
Determine the time periods and temperatures for your program.
You must program four periods for each day. However, you
may use the same heating and cooling temperatures for
consecutive time periods.You can choose start times, heating
temperatures, and cooling temperatures independently (for
example, you may select 5:00 AM and 70° as the daily 1st
period heating start time and temperature, and also choose
7:00 AM and 76° as the daily 1st period cooling start time
and temperature).
(flashing).
EXAMPLE:
This display window shows that for the 1st weekday
period, the start time is 6:00 AM, and 70° is the
programmed temperature (this example reflects factory
preprogramming).
Use the table to plan your program time periods and the
temperatures you want during each period. Fill in the complete
table to have a record of your programs.
3. Press
or
to change the displayed temperature
to your selected temperature for the 1st heating program
period.
EnteringYour Program
4. Press TIME once (the programmed time will flash). Press
or
until your selected time appears. The time will
Set Current Time and Day
change in 15 minute increments. When your selected time
is displayed, press TIME again to return to the change
temperature mode.
1. Press TIME button once. The display will show the hour
only.
5. Press PRGM once. The currently programmed start time
and setpoint temperature for the 2nd heating program
period will appear.
EXAMPLE:
2. Press and hold either
or
until you reach the correct
hour and AM/PM designation (AM begins at midnight; PM
begins at noon).
6. Repeat steps 3 and 4 to select the start time and heating
temperature for the 2nd heating program period.
SAMPLE
Heating/Cooling Schedule Plan
(Factory Program)
Heating/Cooling Schedule Plan
Daily
Daily
Start
Time
Start
Time
Period
Temp
70F
62F
70F
62F
78F
85F
78F
82F
Period
Temp
1ST
6:00 AM
1ST
2ND
3RD
4TH
1ST
2ND
3RD
4TH
8:00 AM
5:00 PM
10:00 PM
6:00 AM
8:00 AM
5:00 PM
10:00 PM
2ND
3RD
4TH
1ST
2ND
3RD
4TH
7
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PROGRAMMING
7. Repeat steps 3 through 5 for the 3rd and 4th heating
program periods.
CHECKYOUR PROGRAMMING
Follow these steps to check your thermostat programming one
8. When you have completed entering your heating program,
press RUN/HOLD.
final time before beginning thermostat operation.
1. Move SYSTEM switch to HEAT position.
2. Press PRGM to view the 1st weekday heating period time
and temperature. Each time you press PRGM, the next
heating period time and temperature will be displayed in
sequence for weekday, then Saturday and Sunday program
periods (you may change any time or temperature during
this procedure).
CAUTION
!
If the outside temperature is below 50oF, disconnect
power to the cooling system before programming.
Energizing the air conditioner compressor during
cold weather may cause personal injury or property
damage.
3. Press RUN/HOLD.
4. Move SYSTEM switch to COOL position.
5. Repeat step 2 to check cooling program.
Enter Cooling Program
1. Move SYSTEM switch to COOL position.
6. Move SYSTEM switch to HEAT or COOL and press RUN/
2. Follow Enter Heating Program for entering your
cooling program, using your selected cooling times and
temperatures.
HOLD to begin program operation.
YOUR THERMOSTAT IS NOW PROGRAMMED AND READY TO
PROVIDE MAXIMUM COMFORT AND EFFICIENCY!
8
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TROUBLESHOOTING
Reset Operation
If a voltage spike or static discharge blanks out the display
or causes erratic thermostat operation, reset the thermostat
If the thermostat has power, has been reset and still does not
function correctly contact your heating/cooling service person
or place of purchase.
by pressing the
,
and TIME buttons simultaneously.
Symptom
Possible Cause
Corrective Action
No Heat/No Cool/No Fan
(common problems)
1. Blown fuse or tripped circuit breaker. Replace fuse or reset breaker.
2. Furnace power switch to OFF. Turn switch to ON.
3. Furnace blower compartment door or Replace door panel in proper position to engage safety
panel loose or not properly installed. interlock or door switch.
No Heat
1. System Switch not set to Heat.
Set System Switch to Heat and raise setpoint above room
temperature.
2. Loose connection to thermostat or
system
3. Heating System requires service or
thermostat requires replacement.
Verify thermostat and system wires are securely attached.
Diagnostic: Set System Switch to Heat and raise the
setpoint above room temperature. Within a five minutes
the thermostat should make a soft slick sound. This sound
usually indicates the thermostat is operating properly. If
the thermostat does not click, try the reset operation listed
above. If the thermostat does not click after being reset
contact your heating and cooling service person or place
of purchase for a replacement. If the thermostat clicks,
contact the furnace manufacturer or a service person to
verify the heating system is operating correctly.
No Cool
1. System Switch not set to Cool.
Set System Switch to Cool and lower setpoint below room
temperature.
2. Loose connection to thermostat or
system.
3. Cooling System requires service or
thermostat requires replacement
Verify thermostat and system wires are securely attached.
Same procedures as diagnostic for No Heat condition
except set the thermostat to Cool and lower the setpoint
below the room temperature. There may be up to a five
minute delay before the thermostat clicks in Cooling if the
compressor lock-out option is selected in the configuration
menu (Item 6).
Heat, Cool or Fan Runs
Constantly
1. Possible short in wiring.
2. Possible short in thermostat.
3. Possible short in Heat/Cool/Fan
system.
Check each wire connection to verify they are not shorted
or touching together. No bare wire should stick out from
under terminal screws. Try resetting the thermostat as
described below. If the condition persists, the manufacturer
of your system or service person can instruct you on how
to test the Heat/Cool/ system for correct operation. If the
system operates correctly, replace the thermostat.
4. Fan Switch set to Fan On.
Furnace CyclesToo Fast or 1. The location of the thermostat and/or Item 3 (CR Heat) or 4 (CR Cool) in the Configuration
Too Slow
the size of the Heating or Cooling
Menu is the adjustment that controls the cycle rate. If an
Cooling Cycles Too Fast
or Too Slow
(narrow or wide
temperature swing)
System may be influencing the cycle acceptable cycle rate is not achieved using the FA (Fast)
rate.
or SL (Slow) adjustment contact a local service person for
additional suggestions.
Thermostat Setting and
Thermometer Disagree
1. Thermostat thermometer setting
requires adjustment.
The thermometer can be adjusted +/- degrees as listed in
item 8 of the Configuration Menu. No other adjustment is
possible.
Clock Loses or Gains
Time
1. Loss of power to thermostat.
The thermostat will maintain its program in memory even
with no power but the clock time will be incorrect when
power is restored. See No Heat/No Cool /No Fan (common
problems) above for items to check in the system.
Heat or Cool Starts Early
1. EMR activated.
See Configuration Menu (Item 3)
Thermostat Does Not
Follow Program
1. AM or PM set incorrectly in program. Check current clock and program settings including the AM
2. AM or PM set incorrectly on the
clock.
or PM designations for each time period. If a voltage spike
or static discharge occurs use the Reset Operation listed
above.
3. Voltage spike or static discharge.
4. See “Heat or Cool Starts Early”
above.
Blank Display and/or
Keypad Not Responding
1. Voltage Spike or Static Discharge.
If a voltage spike or static discharge occurs use the Reset
Operation listed above.
9
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NOTES
10
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NOTES
11
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Homeowner Help Line: 1-800-284-2925
White-Rodgers is a division
of Emerson Electric Co.
The Emerson logo is a
trademark and service mark
of Emerson Electric Co.
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