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Model

Programming Choices

1F95-1277

7 Day

5+1+1 Day

Non-Programmable

white-rodgers.com

emersonclimate.com

Blue Universal Touchscreen Thermostat with 

Automatic Heat/Cool Changeover Option

PART NO. 37- 6753E

Replaces 37-6753D

1517

Single Stage, Multi-Stage, Heat Pump

Installation and Operating Instructions

 

 APPLICATIONS

 

 SPECIFICATIONS

1F95-1277 Touchscreen Thermostat

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.

THERMOSTAT APPLICATION GUIDE

Thermostat 

Configuration Options

Thermostat 

Applications

Maximum 

Stages

Heat/Cool

Single Stage 1

No Heat Pump (SS1)

Gas, Oil, Electric, Heat Only, 

Cool Only or Heat/Cool 

Systems, 2 or 3 wire Hydronic 

Zone (Hot Water or Steam) 

Systems, 24 Volt or Millivolt

1+1

Multi Stage 2

No Heat Pump (MS2)

2+2

Heat Pump 1

Single Stage Compressor 

Heat Pump (HP1)

Single Stage Compressor 

Heat Pump Systems - up to 2 

Stages Aux./Emergency Heat

3+1

Heat Pump 2

Two Stage or Two

Compressor Heat Pump 

(HP2)

Two Stage or Two Compressor 

Heat Pump systems - up to 2 

Stages Aux./Emergency Heat

4+2

ATTENTION: MERCURY NOTICE

This product does not contain mercury. However, this 
product may replace a product that contains mercury.

Mercury and products containing mercury must not be 
discarded in household trash. Do not touch any spilled 
mercury. Wearing non-absorbent gloves, clean up any 
spilled mercury and place in a sealed container. For proper 
disposal of a product containing mercury or a sealed 
container of spilled mercury, place it in a suitable shipping 
container. Refer to 

www.thermostat-recycle.org

 for 

location to send the product containing mercury.

Index

Page

Installation

2

Wiring Diagrams

3

Thermostat Quick Reference

4

Installer Configuration Menu

5

Operating Your Thermostat

9

Programming

10

Troubleshooting

13

Electrical Rating:
 

Battery Power . . . . . . . . . . . . . . . . . . . . . . . . . .   mV to 30 VAC, NEC Class II, 50/60 Hz or DC

 Input-Hardwire  . . . . . . . . . . . . . . . . . . . . . . . . .   20 to 30 VAC
Terminal Load  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1.5A per terminal, 2.5A maximum all terminals combined
Setpoint Range  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   45 to 99°F (7 to 37°C)
Rated Differentials:                                                              Fast.          Slow
 

Heat (Single Stage/Multi-Stage) . . . . . . . . . . . .         0.6°F         1.5°F

 

Cool (Single Stage/Multi-Stage) . . . . . . . . . . . .         1.2°F         1.7°F

 

Heat Pump  . . . . . . . . . . . . . . . . . . . . . . . . . . . .         1.2°F         1.7°F

 

Emer Heat  . . . . . . . . . . . . . . . . . . . . . . . . . . . .         0.6°F         1.7°F

Operating Ambient. . . . . . . . . . . . . . . . . . . . . . . . . .   32°F 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. . . . . . . . . . . . . . . . . . . . . .   4-9/16"H x 5-13/16"W x 1-3/16"D

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

!

Summary of Contents for 1F95-1277

Page 1: ...tain mercury However this product may replace a product that contains mercury Mercury and products containing mercury must not be discarded in household trash Do not touch any spilled mercury Wearing non absorbent gloves clean up any spilled mercury and place in a sealed container For proper disposal of a product containing mercury or a sealed container of spilled mercury place it in a suitable sh...

Page 2: ... The Power Stealing Switches Fig 1 should be left in the On position for most systems The information in the following table details the thermostat power method and switch options WARNING Thermostat installation and all components of the control system shall conform to Class II circuits per the NEC code INSTALLATION Figure 1 Thermostat Base Multi Stage 1F95 1277 2 AA Batteries Power Stealing Switc...

Page 3: ... 1 compressor when auxiliary heat is energized Heat mode 3rd stage Emergency Mode 1st stage Note Dual Fuel option de energizes Heat mode stages 1 and 2 both compressors when auxiliary heat is energized Heat mode 4th stage Emergency Mode 2nd stage Note Dual Fuel option de energizes Heat mode stages 1 and 2 both compressors when auxiliary heat is energized Heat mode 3rd stage Emergency Mode 2nd stag...

Page 4: ...7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 19 20 2 1 11 10 15 16 9 8 17 13 12 4 18 Savings display indicates the feature is active 15 Remote indicates that the indoor remote temperature sensor is being accessed Outdoor Remote indi cates the outdoor remote temperature sensor is being accessed 16 Display time remote...

Page 5: ...Management Recovery Not available if 4 is 0 8 FA Heat Cr SL Selects Adjustable Anticipation cycle rate Heat 9 FA Cool Cr SL Selects Adjustable Anticipation cycle rate Cool 10 FA Cr AU Em SL Selects Adjustable Anticipation cycle rate auxiliary This item is only to appear if HP1 or HP2 is selected above 11 OFF SC On Select stage cycle completion On or Off 12 OFF CL On Selects Compressor Lockout 13 O...

Page 6: ...s fast cycle FA Cr in all modes Heat Cool Em To change to slow cycling SL Cr press touch keys or toggle between FA SL The cycle rates are below Mode Med Slow Heat 0 6 F 1 5 F Cool 1 2 F 1 7 F Heat Pump 1 2 F 1 7 F Emer Heat 0 6 F 1 7 F 11 Stage Cycle Completion SC Selecting SC ON will cause the thermostat to complete heating and or cooling cycles on the highest stage engaged during the cycle Therm...

Page 7: ...sh on the thermostat Refer to Com fort Alert Codes in Troubleshooting section If a Comfort Alert module is not connected or to disable active protec tion turn this feature OFF If a Comfort Alert module is connected and this feature is turned OFF the thermostat will still receive and flash the fault codes from the Comfort Alert module but the active protection will not be enabled to protect the com...

Page 8: ...heat and shut down the compressor When the outdoor temperature falls below the selected tem perature the gas heat will begin Default is 35 but can be set in the range of 5 to 50 A lower setting will delay the start of gas heat allowing cooler temperature in the home INSTALLER CONFIGURATION MENU 35 Select Dual Fuel Setting With DF selected On and no outdoor sensor select the dF setting from 01 09 F...

Page 9: ...he SYSTEM key to select Cool Thermostat controls only the cooling system Off Heating and Cooling systems are off Heat Thermostat controls only the heating system Em Setting is available only when the thermostat is configured in HP1 or HP2 mode Auto Auto Changeover is used in areas where both heating and cooling may be required on the same day AUTO allows the thermostat to automatically select heat...

Page 10: ... will disappear and the day s you copied to will be on 6 If you wish to copy this same program into other days press Copy and repeat steps 3 4 and 5 7 Press Run Schedule to return to normal operation Fill in the blank schedule on the next page then Enter the Heating Program 1 Press the Menu key and then press Set Schedule Press SYSTEM key to select Heat in the system switch area indicating the act...

Page 11: ...equired Wake Up Morning Leave For Work Day Return Home Evening Go To Bed Night Heating Program 6 00 AM 70 F 8 00 AM 62 F 5 00 PM 70 F 10 00 PM 62 F Cooling Program 6 00 AM 75 F 8 00 AM 83 F 5 00 PM 75 F 10 00 PM 78 F Programmable Fan Option In the Set Schedule mode the Fan key is used to select the fan operation during a program period The default state of the Fan key is FAN Auto fan runs during a...

Page 12: ... on the terminal block allow connection of the remote sensor The thermostat must have 24 VAC Common connection to terminal C for the remote sensor to operate The remote sensor can be enabled or disabled in the Installer Configuration menu item 29 When remote sensor Remote is selected Off factory default no remote sensor is enabled When remote sensor is selected On the next step is to select the re...

Page 13: ... the dual fuel temperature setpoint menu item 33 can be set to a temperature of 5 through 50 When outdoor remote sensor is not installed a software logic based dual fuel number menu item 34 from 01 to 09 can be selected A higher temperature or dual fuel setting will provide a smaller stage separation between the heat pump and Aux to give more comfort A lower temperature or number will provide a la...

Page 14: ... 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 block Try resetting the thermostat as de scribed above 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 replac...

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