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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.

Blue 2” Single Stage Thermostat

Installation and Operating Instructions

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.

APPLICATIONS 

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

1F87-0261 Thermostat

Model

Programming Choice

1F87-0261

7 Day Programmable

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 

To prevent electrical shock and/or equipment damage, 
disconnect electric power to system at main fuse or 
circuit breaker box until installation is complete.

CAUTION

!

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.

WARNING

!

PART NO. 37-7038B

Replaces 37-7038A

0950

Содержание 1F87-0261

Страница 1: ...7 0261 Thermostat Model Programming Choice 1F87 0261 7 Day Programmable 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 Opera...

Страница 2: ...e O B switch on this thermostat is factory set to the O position This will accommodate the majority of heat pump applications which require the changeover relay to be energized in COOL If the thermostat you are replacing or the heat pump being installed with this thermostat requires a B terminal to energize the changeover relay in HEAT the O B switch must be moved to the B position Mounting Hole M...

Страница 3: ...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 INSTALLATION WIRING DIAGRAMS R C 24 VAC 120 VAC Hot Neutral THERMOSTAT SYSTEM G W Figure 2 Typical wiring diagram for single transformer single stage systems TRANSFORMER Class II Current Limited Changeove...

Страница 4: ...lace the cover line up the cover with the base and press until the cover snaps onto the base The Thermostat Buttons and Switches 1 Raises temperature setting 2 Lowers temperature setting 3 TIME button 4 SYSTEM switch COOL OFF HEAT EMER 5 PRGM program button 6 FAN switch ON AUTO 7 RUN HOLD program button The Display 8 Indicates days of the week 9 Indicates setpoint temperature This is blank when sy...

Страница 5: ... 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 Savin...

Страница 6: ...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...

Страница 7: ...t Current Time and Day 1 Press TIME button once The display will show the hour only 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 3 Press TIME once again The display window will show the minutes only EXAMPLE 4 Press and hold either or until you reach the correct minutes 5 Press TIME once again The display will show...

Страница 8: ...g Program 1 Move SYSTEM switch to COOL position 2 Follow Enter Heating Program for entering your cooling program using your selected cooling times and temperatures PROGRAMMING If the outside temperature is below 50o F disconnect power to the cooling system before programming Energizing the air conditioner compressor during cold weather may cause personal injury or property damage CAUTION CHECK YOU...

Страница 9: ...hermostat 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 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 screw...

Страница 10: ...10 NOTES ...

Страница 11: ...11 NOTES ...

Страница 12: ...www white rodgers com White Rodgers is a division of Emerson Electric Co The Emerson logo is a trademark and service mark of Emerson Electric Co Homeowner Help Line 1 800 284 2925 ...

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