Education
Central
Engage, Apply, Retain
Emerson 12” Series
Thermostats
Homeowner Support
Hotline:
800-284-2925
Note: This module covers common elements. Refer
to Specification Sheet or Installation Instructions for
detailed information.
Education You Can Build On
Emerson 12” Thermostats
Selecting the Right Thermostat for the Job
Model Number
Multi-Stage
Heat Pump
Gas/Oil/Electric
1F98EZ-1441
Easy Install
1/1
2/2
4/2
✓
1F95-1291
Humidity
1/1
2/2
4/2
✓
✓
✓
1F95-1280
Commercial
1/1
2/2
4/2
✓
✓
1F95-1277
1/1
2/2
3/2
✓
1F97-1277
1/1
2/1
✓
Programming Options
Power Source
Humidity Control
Single Stage / Heat Pump
Millivolt Compatible
Single Stage (SS)
Multi-Stage (MS)
Heat Pump (HP1 or HP2)
Universal (All)
Universal
Applications
3-Wire Zone Value
Model
Single Stage
Stages Heat /
Cool by System
Application Coverage by System
Program Days per
Week
Program
Periods per
Day
Hardwire
Battery
Power Assist
H,D
7, Ø
4, Ø
H
H,D
7, 5+1+1, Ø
4, 2, Ø
B,H,PA
✓
7, 5+1+1, Ø
2, Ø
B,H,PA
✓
✓
7, 5+1+1, Ø
4, 2, Ø
B,H
✓
✓
7, 5+1+1, Ø
4, 2, Ø
B,H
12” Series Thermostats Agenda
• Applications
• Wiring
• Configuration
• Featured Products In This Module
• Programming
– 1F98EZ-1441
• 4 Wire Universal
– 1F95-1291
• Humidity Thermostat, Universal
– 1F95-1277
• Touchscreen, Universal
Look at the Box for Detailed Information
Staging By System Type
Programming Options
Applications
Terminal Identification
Part Number
12” Series Thermostat Overview
Touchscreen offers more features,
delivering a new level of comfort to
your customers
•
A 4 Wire Universal Solution for High
Efficiency Upgrades Without Running
Additional Wires
•
Large, Easy to Read Display
•
Optional Humidity Control
•
Highest Accuracy gives you the
Greatest Comfort
•
Free Homeowner Programming
Hotline in English, Spanish and
French
•
Dual Fuel Capable with Smart Fuel™
Logic Program or Optional Wired
Sensors
12” Series
Specification Sheets Contain Detailed Information
12” Series Applications
Application
Stages
Programming
Feature
Type
4/2
7, 0
Easy Install 4 Wire
1F98EZ-1441
4/2
7, 5+1+1, 0
Humidity
1F95-1291
4/2
7, 5+1+1, 0
Commercial
1F95-1280
3/2
7, 5+1+1, 0
12" Touchscreen
1F95-1277
2/1
7, 5+1+1, 0
12" Touchscreen
1F97-1277
Universal
Conventional or Heat
Pump with Aux
12” Series Terminal Designations
12" Series
Terminal
Description
Programming
W/E
Stages
1st. Stage Heat (SS1, MS2) or
Aux Heat 1st stage (HP)
W2
2nd Stage Heat (MS2) or Aux
Heat 2nd Stage (HP)
Y
Y2
G
RH and RC
C
1st Stage Compressor (SS1,
MS2 or HP1)
2nd Stage Compressor (MS2 or
HP2)
Conv. Or HP
Universal
1F97-1277
7, 5+1+1, 0
1F95-1277
7, 5+1+1, 0
1F95-1280
7, 5+1+1, 0
2/1
3/2
4/2
●
●
Fan Relay
●
●
24 VAC Hot (TH) Separate
●
●
24 VAC Common (TR)
●
●
●
●
●
●
Diagnostics
●
Remote Sensor Terminals
●
Wet Heat, 3 Wire Zone Valve
●
Hum, Dehum(2) Humidity Terminals
●
Economizer
Note:
●
●
Reversing Valve Combined
A1
●
●
O/B
6
4/2
●
Reversing Valve Separate
+, S, -
4/2
●
O and B
L
1F95-1291 1F98EZ-1441
7, 5+1+1, 0
7, 0
Touchscreen Touchscreen
Commercial
Single Stage Mutli-Stage
Humidity
Wireless
12” Series Heat Pump / Dual Fuel Staging Detail
Stage+
HP1
Heat Mode
HP2
Heat Mode
HP1 w/2 stage
Dual Fuel
Heat Mode
1st
Y1 Compressor
Y1 Compressor
Y1 Compressor
2nd
W/E Aux, stage 1
Y2 Compressor
Y2 Compressor
3rd
W2 Aux, stage 2
4th
W/E Aux, stage 1 W/E 1st Stage Gas
W2 Aux, stage 2
W2 2nd Stage Gas
Dual fuel option de-energizes
any compressor stage when
auxiliary heat is energized
Power Stealing Assist Extends Battery Life
(1F95 -1291 and 1280 Only)
•
Power Stealing Assist extends battery life significantly by drawing “stealing”
small amounts of voltage from the heat (W) or cool (Y) circuit. Power
Stealing Switches on the back of the thermostat should be left in the “ON"
position for most systems.
•
On a small number of heating or cooling systems with high impedance
electronic modules you may observe one of the following conditions:
– The furnace , draft inducer or fan run or continue running when the
thermostat is not calling for operation. Switch the “W” dip switch to OFF.
– If the condition continues to occur switch the “Y” dip switch to OFF to
disable Power Stealing Assist completely and operate the thermostat on
batteries only.
If the Power Stealing Assist method is not compatible
with your system both switches can be turned off and
the thermostat will operate normally.
12” Series Wiring for Conventional Systems
- AC /Furnace (No Heat Pump)
Single Stage (SS) in Red
Multi-Stage (MS) add Orange
* Common connection requited for the 1F98EZ, diagnostic indicator,
and outdoor sensor options. Optional on others.
** For two transformer systems remove the jumper
#6 Terminal
is for a
power
closed 3
wire zone
valve
12” Series Wiring for Heat Pump
Single Stage Heat Pump (HP1) in Green
Multi-Stage Heat Pump (HP2) add Orange
* Common connection requited for the 1F98EZ, diagnostic indicator,
and outdoor sensor options. Optional on others.
** For two transformer systems remove the jumper
*** If your system does not provide an E connection, jumper W2 to
W/E to use the Auxiliary Heat in the Emergency Mode
Dual fuel
option deenergizes
when
auxiliary
heat is
energized
12” Series Navigation
Actual Room Temperature
Day of Week
Time of Day or
Humidity
Desired Temperature
Temperature or
Configuration
Adjustment Buttons
Heat/Cool/Off
Battery Status
= Full Charge
= Half Capacity
= Replace Batteries
Fan Auto/On
Configuration and
Programming Touchpad's
12” Series Entering System Configuration
Most technical
service calls are
the result of
improper system
configuration
1. Press the Menu touchpad
2. Press and hold the Installer Config
touchpad for five seconds
12” Application Specific versus
Customization—Don’t Go Overboard!
MENU ITEM
DISPLAY
(DEFAULT)
System Configuration
(MS 2)
SS1, MS2,
HP1, HP2
Installer Set
Electric Heat Fan
(GAS)
GAS, ELE
Installer Set
1. Choose System
2. Select Fan Function
OPTIONS
COMMENTS
Options are great but know
the difference between
application, options, and
confusion to the homeowner.
1F95-1277 Series Configuration Example
Refer To Installation Instructions For Other Models
Denotes Critical to the Application
Displayed
N-P (Default)
Press Δ or  to
Select From Listed
Options
Menu
#
P
1
1
1
SS1
HP1, SS1
Selects Single Stage or Heat Pump (1 compressor), on the
1202 and 1202H add MS2 and HP2 to choices
2
2
2
(ELE)
GAS
GAS setting: furnace controls blower ELE setting: thermostat
controls blower
3
3
3
Days, (7) P
5+1+1 or 0
Programs per week . (0 = non-programmable)
4
4
NA
PS (4)
2
Program periods per day
5
5
4
Cool-OffHeat-Auto
Cool-Off-Heat, Off-Heat,
Cool-Off
System switch configuration in single stage
6
6
NA
E (On)
OFF
Selects Energy Management Recovery, E (with programming
option on)
7
7
5
Cr, Heat (FA)
SL
Selects Adjustable Anticipation, cycle rate, Heat
8
8
6
Cr, Cool (FA)
SL
Selects Adjustable Anticipation, cycle rate, Cool
9
9
7
Cr/AU, Emer
(FA)
SL
Selects Adjustable Anticipation, cycle rate auxiliary, (This item is
only to appear if HP1 is selected above)
10
10
8
CL (OFF)
On
Selects Compressor Lockout
Comments
1F95-1277 Series Configuration
Refer To Installation Instructions For Other Models
Displayed
N-P (Default)
Press Δ or  to
Select From Listed
Options
Comments
Menu
#
P
11
11
9
dL (On)
OFF
Selects Continuous Display backlight & intensity
12
12
10
dL (LO)
HI
Selects Backlight Intensity
13
13
11
0
-4, LO to 4, HI
Selects Adjustable Ambient Temperature Display
14
14
12
°F
°C
Selects °F/°C Display (temperature units in Fahrenheit or Celsius) .
15
15
13
b (On)
OFF
Selects audible Beeper On/Off
16
16
14
dS (On)
OFF
Selects Daylight Saving Time calculation
17
17
15
AS, Heat (On)
OFF
Selects Automatic Schedule for comfort temperature Programming,
heat mode
18
18
16
AS, Cool (On)
OFF
Selects Automatic Schedule for comfort temperature Programming,
cool mode
19
19
17
CS, (OFF)
Cool Savings
1-2-3-4-5-6
Selects Cool Saving Feature & amount
1F95-1277 Series Configuration
Refer To Installation Instructions For Other Models
Menu
#
P
20
20
18
21
21
19
22
22
Press Δ or  to
Select From Listed
Options
Comments
62-98
TEMPERATURE LIMIT, HEAT (max heat set point)
46-82
TEMPERATURE LIMIT, COOL (min cool set point)
L (total)
P (partial)
Selects Keypad Lockout
0
001-999
Selects Keypad Lockout Combination
(active only if keypad Lockout is selected) .
Displayed
N-P (Default)
20
HL,
Heat (99)
LL,
Cool (45)
OFF
Keypad
Lockout
23
23
21
FS, Heat (On)
OFF
Fast second stage of heat (not available if SS1 is selected )
24
24
22
FS, Cool (On)
Off
Fast second stage of cool (not available if SS1 of HP1 is selected)
Remote (OFF)
On
Remote temperature sensor, enable/disable
In, Remote
Outdoor Remote
Remote temperature sensor (Indoor/Outdoor)
LS (On)
OFF
dF (5)
5-50
Cd (60)
0-99
Selects Compressor delay in seconds
(only when dF is selected >5)
Change Filter
(OFF)
On
Selects Change filter feature
200 Hours
25-1975
Change filter, duration hours
(in increments of 25 hours)
25
26
27
25
26
27
23
24
25
Local temp . Sensor enable/disable
(only when Indoor Remote is selected On) .
Selects Dual Fuel Feature & set point
Optional Configuration Options
MENU ITEM
DISPLAY
DEFAULT
OPTIONS
COMMENTS
EMR
E (On)
Off
Programming
Mode Only
Heat Cycle Rate
Cr HEAT (ME)
SL, FA
SS1, MS2 only
Heat Pump
Configuration Cycle
Rate
Cr Heat /
A/C (ME)
SL, FA
Heat Pump
HP1, HP2 only
A/C Cycle Rate
Cr A/C (ME)
SL, FA
SS1, MS2 only
Auxiliary Heat Cycle
Cr AUX Heat (FA)
SL
HP1, HP2 only
Optional Configuration Options
MENU ITEM
Compressor Lock-out
DISPLAY DEFAULT
OPTIONS
COMMENTS
CL (OFF)
On
Installer Set
System Configuration
(Heat, A/C, Off)
Heat, Off, Fan/
Heat, Off/ A/C
Off
Installer Set
Compressor
Optimization
CO (OFF)
On
Installer Set
LCD Display Light
dL(ON)
OFF
Temperature Display
Adj.
Hi (0)
1 to 5 Hi or LO
°F/°C Selection
(°F)
°C
Optional Configuration Options
DISPLAY
(DEFAULT)
OPTIONS
Dual Fuel / Electric
dF (0)
1–9
Compressor Delay
Cd (60)
00 – 99
On A/C (O)
On Heat (B)
MENU ITEM
O/B Output
Configuration
COMMENTS
Application
Specific Set
By Installer
(HP1 or HP)
1F95-1291 Humidity Thermostat Configuration,
Additional Menu Items
Menu SS1 HP1 Displayed
#
MS2 HP2 (Default)
Press Δ or  to
Select From Listed
Options
Comments
38
l
l
(OFF) Hd
On
Selects Humidity Display alternate with time.
39
l
l
Humidity 00
(Room
Humidity)
-20 Lo to 20 HI
Selects Humidity Display adjustment.
40
l
l
(OFF) HR
LO, HI
Selects Auto Humidity reduction.
41
l
l
(OFF) AH
H, C, A
Selects Automatic Humidification.
42
l
l
(OFF) CH
On
Selects Cycle Humidifier.
43
l
l
OC (0)
od, OFF
Selects Optimum Comfort or Optimum Dehumidification or Off.
44
l
l
(OFF) Change
UV Lamp
On
Selects Change UV Lamp feature.
45
l
l
350 Days
25-1975
Change UV Lamp duration days.
46
l
l
(OFF) Change
Pad
On
Selects Change Humidifier Pad feature.
47
l
l
100 Hrs
25-1975
Change Humidifier Pad duration hours.
12” Series Reset to Factory Defaults
Factory Default Reset: to completely reset the programming, clock and Configuration Menu to the
Factory Default Settings, press the UP, DOWN, and SYSTEM touchpad's simultaneously. The display will
go black for a few seconds, and then all segments will display momentarily. Reset settings for the
application.
12” Series
Program
Worksheet
Technical Service has never spoken to anyone who
could not program the thermostat once they filled out
the schedule worksheet in the manual and KEPT it.
Save a call back and fill it out with the homeowner.
Ensure they have the Homeowner Support Hotline:
888-616-0030
12” Series Set Time, Year, Month and Date
1. Press MENU touchpad to
enter installer menu.
2. Press Set Time once to
indicate hour and AM or PM
designation
3. Press and hold either the
PLUS or MINUS touch pad
until you reach the correct
hour and A or P designation.
4. Repeat step 2 and 3 for
minutes, year, month and
date.
5. Press Run Schedule to
complete
3
2
1
5
12” Series Automatic Daylight Saving
Calculator
The Real Time Clock will adjust automatically for daylight savings time,
in the following manner:
– Increment one hour at 2 AM on the second Sunday of March and
decrement one hour at 2 AM on the first Sunday of November.
The daylight saving feature can be enabled or disabled in installer
configuration mode. Default is dS ON (enabled).
After entering installer configuration mode, momentarily press or touch
+ or -key until the display indicates dS (in actual temperature digits)
and on (default – in clock digits).
• Press the + or - keys to toggle display and operation from On to Off
12” Series Program Copy Button
•
You may copy any daily program to
another day or group of days by
pressing the Copy touch pad. In 7
day programming mode when the
Copy button is pressed, the other 6
days of the week will flash.
1. To copy the current program into
the remaining six days, simply press
the Copy button again.
2. To copy the current program to
another day of the week, press
Advance Day to select the day and
press Copy to paste the program.
• In 5+1+1 day programming mode the
copy function is similar. The weekday
(Mon-Fri) program can be copied to
Sat and Sun (both flashing) or use
Advance Day to choose Sat or Sun
and press Copy to paste the
program.
12” Series Configure Program Options
• System must be set for Heat or Cool. Press the Menu button for at
least 5 seconds.
1.
2.
The display will step #1 in the configuration menu
Press the UP button to the appropriate configuration Menu No
• Select the programs per week by pressing UP/DOWN button
– “0” for non-programmable
– “5+1+ 1” for Mon through Fri with independent Sat. and Sun programs.
– “7” for independent program days
3.
Press the UP button to the next configuration Menu No
• Select the programs per day by pressing UP/DOWN button
• “2” for Morn/Eve program periods per day
• “4” for Morn/Day/Eve/Night program periods per day
4.
Press Run
12” Series How to Set A Program
1. Press the Menu button and then press Set Schedule. Press
SYSTEM button to select either "Heat" or "Cool” in the system
switch area indicating the active mode being programmed.
2. The top of the display will show the day(s) being programmed.
The time and set at temperature are also displayed. "Morning"
will also be displayed to indicate the period.
3. Press PLUS or MINUS touch pad to change the temperature
to your selected temperature for the 1st heating period
(Morning).
4. Press PLUS or MINUS touchpad to adjust the start time for
period. The time will change in 15 minute increments.
5. Press FAN to select Auto or Prog.
6. Press Set Schedule to advance to the next program period.
7. Repeat steps 2 through 6 until all of the program times and
temperatures are set for all program periods on that day.
8. Press "Advance Day" to change to the next day and repeat
steps 2 through 8.
9. Press Run Schedule To complete programming.
12” Series Automatic Scheduling
• This feature provides a method to program every day with the most
popular time and temperature profile using one key press.
• For this feature to be available, the Auto schedule options (AS Cool
or AS Heat) should be set on in the installer configuration.
– Select the desired “Comfort Temperature” in the setpoint. When the
Auto Schedule touch key is pressed, it will start flashing indicating that it
is now ready to insert the displayed temperature setpoint as the
“Comfort Temperature” for the selected system mode currently in
(Heat/Cool).
– A second press of the Auto Schedule touch key will complete the
process. A 6 °F setback temperature will also be inserted for the night
step.
– Once complete, the touch key display Auto Schedule will disappear
disabling any further operation of Auto Schedule touch key. If desired it
can be enabled again in the installer configuration menu.
12” Series Entering Fan Program
•
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 call for cool but not on a call for heat).
•
It can be changed to FAN Prog (fan runs during a program period).
Each press of the FAN key will change the mode of the fan between
Auto and Prog.
•
In the Run mode, when a program period that has FAN Prog begins,
the fan will turn on and stay on during the complete period. The display
will show FAN On Prog.
•
Pressing the FAN key will change FAN On Prog to On (fan running
continuously) or Auto. To return to FAN On Prog, press Run
Schedule.
12” Series Dual Fuel Settings
• This feature is applicable only in heat pump modes and an outside
remote sensor is installed, the thermostat can monitor the outside
temperature.
– When the outside temperature falls below the selected setpoint
temperature, dF, the thermostat will switch to gas heat and shut down
the compressor. The eliminates the need for a fossil fuel kit.
– Use the or PLUS or MINUS touchpad's to select the desired setpoint
temperature in the range of 5° F to 50° F
– Factory default is 5, which disables this feature. See Dual Fuel
Temperature and Setpoint in Programming section.
• Select Compressor Delay – When dF is enabled, the shut down of
the compressor(s) is delayed for a time period after the auxiliary
stage is energized. This delay, Cd, is factory set at 60, but can be
set in the range of 0 to 99 seconds by using the PLUS or MINUS
touchpad's .
12” Series Wired Remote Sensing
•
One remote temperature sensor can be installed indoor or outdoor and connected to the
thermostat by a maximum cable length of 100 meters (300 ft). Three terminals, +, S & are provided on the terminal block to connect to the White- Rodgers standard wired
remote sensor. This sensor will be read by the thermostat only when 24 VAC is present.
•
When used as indoor sensor, the readings can be weighted with the local sensor for
specific program periods. User can enable or disable the remote sensor in the installer
configuration mode and also the outdoor temperature can be selected to show on the
display.
•
In the installer configuration mode, momentarily press the PLUS or MINUS touchpad until
display indicates Remote (at the top left of the LCD) and OFF (default – in clock digits).
–
–
•
Pressing PLUS or MINUS touchpad will toggle the operation and display from Remote OFF to
Remote On.
When Remote On is selected, press the PLUS touchpad for the display to indicate Remote In (for
indoor remote). The or keys will toggle the operation and display from Remote In to Outdoor
Remote. When any remote is selected the temperature will display in the clock digits for one
second alternating with the current time for three seconds when in Run Schedule mode. Outdoor
Remote will indicate at the top left of display for outdoor remote reading. Only Remote will show at
top left for indoor remote reading. (°F or °C will not indicate with remote temperature readings).
Sensing Range:
–
–
Outdoor temperature range is -40 to 140°F
Indoor temperature range is 32 to 99 °F
12” Changing Humidity Settings
•
Heat (Humidification)
– Press SYSTEM key to select HEAT.
– To change the humidity setting when System On appears and the heating
system is running press the HUMIDITY* button once.
– Press UP or DOWN to adjust the humidity level setpoint range. (Humidity
setpoint can be adjusted from 5 to 50%.) Hum On will appear indicating it is
calling for the humidifier.
•
Cool (Dehumidification)
– Press SYSTEM to select Cool.
– To change the humidity setting when System On appears and the cooling
system is running press the HUMIDITY* button once.
– Press UP or DOWN to adjust the dehumidification level setpoint range. (Humidity
setpoint can be adjusted from 5 to 50%.) DeHum On will appear indicating it is
calling for the humidifier.
– If the room humidity is lower than the adjustment range, press DOWN to 40%
and hold for 4 seconds. This will force the DeHum On for one complete cooling
cycle to test the dehumidification equipment.
•
*Note: If Auto Schedule is displayed instead of Humidity, Auto Schedule must be
turned off in the Configuration Menu.
12” Emergency Mode for Heat Pumps
•
Emergency Heat (System EM Position) bypasses the Heat Pump to use
the heat source wired to terminal W/E, W2 on the thermostat. EM is
typically used when compressor operation is not desired, or you prefer
back-up heat only.
1. Press SYSTEM key to select EM. “EM Heat Mode” will flash on the
display.
2. Press UP or DOWN to adjust thermostat setting above room
temperature.
–
3.
Adjust temperature setting to 3° above room temperature.
–
4.
The Emergency heating system will begin to operate. The display will show
“System On” flashing “EM Heat Mode” and “Heat” to indicate that the
Emergency system operating.
Any additional stages of auxiliary heat should begin to operate and the
display will show "System On +2".
Press UP or DOWN to adjust the thermostat below room temperature.
–
The heating system should stop operating.