White Rodgers 1F82-261 Programmable Electronic Digital Heat Pump Thermostat Instructions
- June 16, 2024
- WHITE RODGERS
Table of Contents
1F82-261
Programmable Electronic Digital
Heat Pump Thermostat
INSTALLATION AND
OPERATION INSTRUCTIONS
1F82-261 Programmable Electronic Digital Heat Pump Thermostat
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR
OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
Your new 5-Day/1-Day/1-Day Digital Thermostat uses the technology of a solid- state microcomputer to provide precise time/ temperature control. This thermostat offers you the flexibility to design heating and cooling programs that fit your needs.
Features:
- Separate 5-day (weekday) and 1-day/1-day (Saturday/ Sunday) programming with four separate time/temperature periods per day
- Simultaneous heat and cool program storage
- Preprogrammed temperature control
- Optional battery back-up for AC power loss
- LCD continuously displays set point, and alternately displays time and room temperature
- Continuous Backlit display option
- Temperature override until next program period
- Manual program override (HOLD temperature)
- Temporary HOLD
- °F/°C convertibility
- Temperature range 45° to 90°F
- R, C, Y, W2, G, O/B, E, and L terminals for single or two-transformer systems
PRECAUTIONS
This thermostat is intended for use with a low voltage NEC 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.
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.
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.
WARNING
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause shock or fire hazard.
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.
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.
SPECIFICATIONS
ELECTRICAL DATA
Electrical Rating:
20 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.0 Amps (Load per terminal)
1.5 Amps Maximum Total Load (All terminals combined)
THERMAL DATA
Setpoint Temperature Range: 45°F to 90°F (7°C to 32°C)
Operating Ambient Temperature Range: 32°F to 105°F
Operating Humidity Range: 0 to 90% RH (non-condensing)
Shipping Temperature Range: -4°F to 149°F
APPLICATIONS
For use with the following Class II systems:
- Standard heat pump systems with electric, gas or oil Aux heat with 24VAC Hot and Common available
- Single-stage heat pump systems with no Aux heat with 24VAC Hot and Common available
DO NOT USE WITH:
- Millivolt systems
- Systems exceeding 30 VAC and 1.5 amps
- 3-wire zoned hydronic heating systems
INSTALLATION
REMOVE OLD THERMOSTAT
- Shut off electricity at the main fuse box until installation is complete. Ensure that electrical power is disconnected.
- Remove the front cover of the old thermostat. With wires still attached, remove wall plate from the wall. If the old thermostat has a wall mounting plate, remove the thermostat and the wall mounting plate as an assembly.
- Identify each wire attached to the old thermostat using the labels enclosed with the new thermostat.
- Disconnect the wires from old thermostat one at a time. DO NOT LET WIRES FALL BACK INTO THE WALL.
- Install new thermostat using the following procedures.
ATTENTION!
This product does not contain mercury. However, this product may replace a
unit which contains mercury.
Do not open mercury cells. If a cell becomes damaged, do not touch any spilled
mercury. Wearing nonabsorbent gloves, take up the spilled mercury and place
into a container which can be sealed. If a cell becomes damaged, the unit
should be discarded.
Mercury must not be discarded in household trash. When the unit this product
is replacing is to be discarded, place in a suitable container. Refer to www
.white-rodgers.com for location to send the
product containing mercury.
ATTACH THERMOSTAT BASE TO WALL
-
Remove the packing material from the thermostat. Gently pull the cover straight off the base. Forcing or prying on the thermostat will cause damage to the unit.
-
Connect wires beneath terminal screws on base using appropriate wiring schematic (see figs. 2 through 4).
-
Place base over hole in wall and mark mounting hole locations on wall using base as a template.
-
Move base out of the way. Drill mounting holes.
-
Fasten base loosely to wall, as shown in fig. 1, using two mounting screws. Place a level against bottom of base, adjust until level, and then tighten screws. (Leveling is for appearance only and will not affect thermostat operation.)
If you are using existing mounting holes, or if holes drilled are too large and do not allow you to tighten base snugly, use plastic screw anchors to secure subbase. -
Push excess wire into wall and plug hole with a fire-resistant material (such as fiberglass insulation) to prevent drafts from affecting thermostat operation.
ELECTRIC/GAS JUMPER (Fan Option)
Read the following information before clipping the nonelectric heat jumper. If
you are unsure of your application, contact a qualified service person.
If your emergency or auxiliary system will energize the blower, then jumper,
W904, on the thermostat base must be cut (see fig. 1).
If your emergency or auxiliary heat system requires that the thermostat
energize the fan circuit, do not cut jumper W904.
OPTIONAL BATTERIES
With tw o “AA”batteriesinstalled,yourthermostatwillmaintain time and continuously display the temperature during a loss of AC power. Installed batteries will also allow programming prior to installation. For best results, use new premium brand batteries such as Duracell® or Energizer® .
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 minimizes the use of auxiliary stages during the
transition period to reduce energy costs.
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
automatically start the heating system at 5:00 AM, so that the programmed
temperature of 70°F is reached by about 6:00 AM.
If the overnight room temperature drops only to 68F°, the thermostat will
start the system at 5:30 to reach the programmed 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. This feature provides better efficiency by allowing gradual
temperature changes using only the first stage of heat.
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.
O/B TERMINAL SWITCH SELECTION
The O/B switch onthisthermostatisfactorysettothe“O”position.
Thiswillaccommodatethemajorityofheatpumpapplications, whichrequirethechangeoverrelaytobeenergizedinCOOL.
If the thermostat you are replacing or the heat pump being in- stalledwiththisthermostatrequiresa“B”terminal,toenergize thechangeoverrelayinHEAT,theO/Bswitchmustbemoved tothe“B”position.
WIRING DIAGRAMS
OPERATION
CHECK THERMOSTAT OPERATION
If at any time during testing your system does not operate properly, contact a
qualified service person.
Turn on power to the system.
Fan Operation
If your system does not have a G terminal connection, skip toHeating System.
- Move fan switch to ON position. The blower should begin to operate.
- Move fan switch to AUTO position. The blower should stop immediately.
Heating System
-
Move SYSTEM switch to HEAT position. If the auxiliary heating system has a standing pilot, be sure to light it.
-
Press to adjust thermostat setting to 1° above room temperature. The Heat Pump system should begin to operate.
However, if the Flame icon ( ) and Snowflake icon ( ) are flashing, the compressor lockout feature is operating (see Configuration menu, item 7). -
Adjust temperature setting to 4° above room temperature.
The auxiliary heat system should begin to operate and the Flame icon will be flashing. -
Press to adjust temperature setting below room temperature. The heating system should stop operating.
Emergency System
EMER bypasses theHeatPumptousetheheatsourcewired to terminal E on the thermostat. EMER is typically used whencompressor operation is not desired, or you prefer back-upheat only.
-
Move SYSTEM switch to EMER position, EMER will flashon the display.
-
Press to adjust the thermostat above room temperatureThe Aux heating system will begin to operate. The Flame icon ( )will display flashingtoindicatethattheAuxsystem is operating.
-
Press to adjust the thermostat below room temperature The Aux heating system should stop operating.
Cooling System
CAUTION
To prevent compressor and/or property damage, if the outdoor temperature is
below 50°F, DO NOT operate the cooling system.
- Move SYSTEM switch to COOL position.
- Press to adjust thermostat setting below room temperature. The blower should come on immediately on high speed,followed by cold air circulation
- Press to adjust temperature setting above room temperature. The cooling system should stop operating.
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.
THE THERMOSTAT BASE
Other than and , the following buttonsandswitches arelocatedonthebottomofthethermostatcover(seefig.5).
The Thermostat Buttons and Switches
-
Raises temperature setting.
-
Lowers temperature setting.
-
TIMEbutton.
-
PRGM(program)button.
-
RUN (program) button.
-
HOLDtemperaturebutton.
-
FAN switch (ON, AUTO).
-
SYSTEMswitch(COOL,OFF,HEAT, EMER)
The Display -
Indicates day of the week.
-
Indicates a malfunction with the system.
-
Flame icon ( ) is displayed whentheSYSTEMswitchis in the HEAT position. Flame icon ( ) is displayed flashing when 2nd-stage heat (Aux or Emergency) is energized.
Snowflake icon ( ) is displayed (non-flashing) when the SYSTEM switch is in the COOL position. Snowflake and Flame aredisplayed(flashing)ifthethermostatisinlockout mode to prevent the compressor from cycling too quickly. -
EMER is displayed flashing when the system switch is in EMER position.
-
Alter nately displays current time and temperature.
-
The word HOLD is displayed when the thermostat is in the HOLD mode. HOLD is displayed flashing when the thermostat is in a temporary HOLD Mode.
-
Displays currently programmed set temperature (this is blank when SYSTEM switch is in the OFF position).
-
Displays FLTR when the system has run for the programmed filter time period as a reminder to change or clean your air filter.
-
CONFIGURATION MENU
The configuration menu allows you to set certain thermostat operating
characteristics to your system or personal requirements.
Press RUN to make sure the thermostat is in the run program mode, then press
PRGM and RUN at the same time to enter the configuration menu. The display
will show the first item in the configuration menu.
The configuration menu chart summarizes the configuration options. An
explanation of each option follows.
Press 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 RUN. If no keys are pressed within fifteen minutes, the
thermostat will revert to normal operation.
-
Select Temporary Hold Time – The thermostat can hold any temperature you set it to for the amount of time you select on this option. Your choices are 0:00 to 8:00 hours in 15 minute increments. 0:00 disables the function Example: Using the Temporary Hold Function
1. You have selected 3:00 hours for the Temporary Hold time period.
2. With the thermostat set to Heat or Cool, press HOLD for five seconds (time will show 3:00 hours as a setting reminder).
3. HOLD on the display will blink. Release the HOLD button after the temporary hold time is displayed.
4. Use or to set the temperature to your pref-erence. The thermostat will maintain this temperature setting for 3 hours with HOLD blinking to remind you it is in Temporary Hold. After 3 hours the thermostat will go back to the program temperature and HOLD will no longer blink or display. -
Select FA or SL (Fast or Slow) Heat Pump stage Cycle Rate – The FA setting is used to produce shorter heating cycles. The SL setting produces a longer heating/cooling cycle.
Both settings produce very accurate temperature control and can be set to your personal preference. FA cycles the system just under .75°F and the SL setting cycles at approximately 1.2°F. -
Select FA or SL (Fast or Slow) Auxiliary or Emergency Cycle Rate – The FA setting is frequently used for gas, oil or electric heat. The SL setting produces a longer heating cycle.
Both settings produce very accurate temperature control and can be set to your personal preference. FA cycles the system just under .6°F and the SL setting cycles at approximately 1.°F. -
Select backlit display – The display backlight improves display contrast in low lighting conditions. Selecting backlight ON will keep the light on continuously. Selecting OFF will keep the light off.
Configuration Menu
Step| Press Button(s)| Displayed (Factory Default)| Press
or to select:| COMMENTS
---|---|---|---|---
1| PRGM and RUN| HOLD
(0:00)| 0 to 8 hrs (in 15 minute increments)| Select temporary Hold time
2| HOLD | (SL)| FA| Select FA or SL (Fast or Slow) pump cycle rate
3| HOLD | EMER
(FA)| SL| Select FA or SL (Fast or Slow) Auxiliary and Emergency Aux heating
cycle rate
4| HOLD | d-L (on)| OFF| Select display backlight OFF or ON
5| HOLD | E
(on)| OFF| Select Energy Management Recovery OFF or ON
6| HOLD | Filter (000)| 0 to 1950 hours (in 50 hour increments)| Select
filter replacement run time
7| HOLD | LOC (OFF)| on| Select Compressor lockout OFF or ON
8| HOLD | 0 HI
(0)| 4 LO to 4 HI| Select temperature display adjustment higher or lower
9| HOLD | (F)| C| Select temperature display to F or C
10| HOLD *| FA
(on)| OFF| Select fast second stage ON or OFF
11| RUN| | | Returns to normal operation
-
Press HOLD to advance to next item or TIME to move backwards to previous item
- Select Energy Management Recovery OFF or ON – EnergyManagement Recovery (EMR) causes the thermostat to startheating or cooling early to make the building temperaturereach the program setpoint at the time you specify.
- Select filter replacement run time – The thermostat will display FLTR after a set time of operation. This is a reminder to change or clean your air filter. This time can be set from0 to 1950 hours in 50 hour increments. A selection of 000 will cancel this feature. When FLTR is displayed, you canclear it by pressing HOLD and RUN at the same time. This resets the timer and starts counting the hours until the nextfilter change. Contact your heat pump manufacturer for aspecific replacement/maintenance interval.
- Select Compressor Lockout LOC OFF or ON – SelectingLOC ON will cause the thermostat to wait 5 minutes beforeturning on the compressor if the heating and cooling system loses power. It will also wait 5 minutes minimum between cooling or heating cycles. This is intended to help protect the compressor from short cycling. Some newer compressorsalready have a time delay built in and do not require thisfeature. Your compressor manufacturer can tell you if thelockout feature is already present in their system. Whenthe thermostat compressor time delay occurs it will flash the Snowflake and Flame icons for about five minutes.
- 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 calibratedat 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 right side of the display.
- Select F° or C° Readout – Changes the display readout to Celsius or Fahrenheit as required. The current room temperature will be displayed on the right side of the display.
- Select Fast second stage – In the RUN mode, if the temperature is manually raised by 3°F ( 2°C) or more above room temperature using and the fast second stage feature is enabled, FA on, the second stage will energizeimmediately. With FA off, the second stage will not energizeuntil the setpoint temperature is 10°F or more above room temperature.
SAMPLE
Heating/Cooling Schedule Plan (Factory Program)
MANUAL OPERATION
-
HOLD TEMPERATURE — With the SYSTEM switch set to HEAT or COOL, momentarily press HOLD button. HOLD will be displayed. Use or to adjust the tempera- ture. The thermostat will hold the room temperature at the selected setting until you press RUN button to start program operation again.
-
TEMPERATURE OVERRIDE — Press or until the temperature you want is displayed. The thermostat will override current programming and keep the room temperature at the selected temperature until the next program period begins.
Then the thermostat will automatically revert to the program. -
TEMPORARY HOLD TEMPERATURE — The thermostat can hold any temperature within its range for the length of time selected in the configuration menu. See Configuration Menu section, step 1.
PROGRAMMING YOUR THERMOSTAT
This section will help you plan your thermostat’s program to meet your needs.
For maximum comfort and efficiency, keep the following guidelines in mind when
planning your program.
- When heating (cooling) your building, program the temperatures to be cooler (warmer) when the building is vacant or during periods of low activity.
- During early morning hours, the need for cooling is usually minimal.
Planning Your 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 button to
begin running the factory preset program.
If you want to change the preprogrammed times and temperatures, follow these
steps.
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,
Heating/Cooling Schedule Plan
and cooling temperatures independently (for example, you mayselect 5:00 AM and 70° as the weekday 1st period heatingstart time and temperature, and also choose 7:00 AM and 76°as the weekday 1st period cooling start time and temperature).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.
Entering Your Program
Set Current Time and Day
-
Press TIME button once. The display will show the hour only.
EXAMPLE: -
Press and hold either or until you reach the correct hour and AM/PM designation (AM begins at midnight; PM begins at noon).
-
Press TIME once again. The display window will show the minutes only.
EXAMPLE: -
Press and hold either or until you reach the correct minutes.
-
PressTIMEonceagain.Thedisplaywillshowthedayofthe week.
-
Press or untily ou reachthecurrentdayoftheweek.
-
Press RUN once. The display will show the correct time and room temperature alternately.
Enter Heating Program
- Move the SYSTEM switch to HEAT.
- Press PRGM once. “MO TU WE TH FR” (indicating weekday program) will appear in the display. Also displayed are the currently programmed start time for the 1st heating period and the currently programmed temperature (flashing).
EXAMPLE
This display window shows that for the 1st weekday period, the start time is 6:00 AM, and 68° is the programmed temperature (this example reflects factory preprogramming).
-
Press or to change the displayed temperature to your selected temperature for the 1st heating program period.
-
Press TIME once (the programmed time will flash). Press or until your selected time appears. The time will change in 15 minute increments. When your selected time is displayed, press TIME again to return to the change tem- perature mode.
-
Press PRGM once. The currently programmed start time and setpoint temperature for the 2nd heating program period will appear.
-
Repeat steps 3 and 4 to select the start time and heating temperature for the 2nd heating program period.
-
Repeat steps 3 through 5 for the 3rd and 4th heating program periods.
-
Press PRGM once. “SA” (indicating Saturday program) will appear in the display, along with the start time for the 1st heating period and the currently programmed temperature.
-
Repeat steps 3 through 7 to complete Saturday heating programming.
-
Press PRGM once to change to SU (Sunday) heating programming and repeat steps 3 through 7 to complete Sunday programming.
-
When you have completed entering your heating program, press RUN.
Enter Cooling Program
CAUTION
If the outside temperature is below 50°F, disconnect power to the cooling
system before programming.
Energizing the air conditioner compressor during cold weather may cause
personal injury or property damage.
- Move SYSTEM switch to COOL position.
- Follow Enter Heating Program for entering your cooling program, using your selected cooling times and temperatures.
CHECK YOUR PROGRAMMING
Follow these steps to check your thermostat programming one final time before
beginning thermostat operation.
- Move SYSTEM switch to HEAT position.
- 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).
- Press RUN.
- Move SYSTEM switch to COOL position.
- Repeat step 2 to check cooling program.
- Move SYSTEM switch to HEAT or COOL and press RUN to begin program operation.
NOTE: Batteries are not required to keep your programming or menu data.
With two optional “AA” batteries installed, your thermostat will maintain time
and continuously display the temperature during a loss of AC power. Installed
batteries will also allow programming prior to installation.
YOUR THERMOSTAT IS NOW PROGRAMMED AND READY TO PROVIDE MAXIMUM COMFORT AND
EFFICIENCY!
TROUBLESHOOTING
Reset Operation
If a voltage spike or static discharge blanks out the display orcauses erratic
thermostat operation, reset the thermostat by pressing ,
andTIMEatthesametime.Ifthethermostat
haspower,hasbeenresetandstilldoesnotfunctioncorrectly contact your
heating/cooling service person or place of purchase.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No Heat/No Cool/No Fan (common problems) | 1. Blown fuse or tripped circuit |
breaker.
2. Furnace power switch to OFF.
3. Furnace blower compartment door or panel loose or not properly
installed.| Replace fuse or reset breaker. Turn switch to ON.
Replace door panel in proper position to engage safety inter- lock or door
switch.
No Heat| 1. System Switch not set to Heat.
2. Loose connection to thermostat or system.
3. Heating System requires service or thermo- stat requires replacement.|
Set System Switch to Heat and raise setpoint above room temperature.
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 click 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 replace- ment. If the thermostat clicks, contact
the furnace manu- facturer or a service person to verify the heating system
is operating correctly.
No Cool| 1. System Switch not set to Cool.
2. Loose connection to thermostat or system.
3. Cooling System requires service or thermo- stat requires replacement.|
Set System Switch to Cool and lower setpoint below room temperature.
Verify thermostat and system wires are securely attached. Same procedure 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 7).
Heat, Cool or Fan Runs Constantly.| 1. Possible short in wiring.
2. Possible short in thermostat.
3. Possible short in Heat/Cool/Fan system.
4. Fan Switch set to Fan On.| 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.
Furnace Cycles Too Fast or Too Slow (narrow or wide temperature swing)| 1.
The location of the thermostat and/or the size of the Heating System may be
influencing the cycle rate.| Item 2 in the Configuration Menu is the
adjustment that controls the cycle rate. If an acceptable cycle rate is not
achieved using the FA (Fast) or SL (Slow) adjustment contact a local service
person for additional suggestions.
Cooling Cycles Too Fast or Too Slow (narrow or wide temperature swing)| 1.
The location of the thermostat and/or the size of the Cooling System may be
influencing the cycle rate.| The cycle rate for cooling is fixed and can not
be adjusted.
Contact a local service person for suggestions.
Thermostat Setting and Thermometer Disagree| 1. Thermostat thermometer
setting requires adjustment.| The thermometer can be adjusted +/- 4 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 5).
Thermostat Does Not Follow Program| 1. AM or PM set incorrectly in program.
2. AM or PM set incorrectly on the clock.
3. Voltage spike or static discharge.| Check current clock and program
settings including the AM or PM designations for each time period. If a
voltage spike or static discharge occurs use the Reset Operation listed 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.
White-Rodgers is a business of Emerson Electric Co.
The Emerson logo is a trademark and service mark of Emerson Electric Co.
www.white-rodgers.com
www.emersonclimate.com
References
- emersonclimate.com
- Copeland is Engineered for Sustainability | Copeland US
- White-Rodgers Brand | Copeland US
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