Emerson Blue 2" Single Stage Thermostat 1F80-0224 Manual

Figure 3. Typical wiring diagram for two transformer single stage systems with NO safety circuits

NOTE: If safety circuits are in only one of the systems, remove the transformer of the system with NO safety circuits.

Figure 4. Typical wiring diagram for two transformer single stage systems with safety circuits in BOTH systems

THERMOSTAT QUICK REFERENCE

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.

The Thermostat Buttons and Switches

1. SYSTEM switch (COOL, OFF, HEAT, EMER).
2. FAN switch (ON, AUTO).

The Display

8. "Save" indicates the Cool Savings feature is enabled in the configuration menu. "Save" (flashing) indicates Cool Savings feature is active.
9. 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.
10. "Service" indicates a diagnostic fault in the heating/cooling system. It does not indicate a fault in the thermostat.
11. "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.
12. "" indicates power level of batteries. "Change " indicates batteries should be replaced.
13. "A" "P" indicates time as Morning (A) Evening (P).
14. "Temp Hold" indicates temporary hold or "Hold" indicates hold mode.

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)	Press or to select from listed options	Comments
1	and	SS	HP	Select Single Stage (SS) or Heat Pump (HP, 1 compressor)
2	RUN/HOLD*	CS (OFF)	On	Select Cool Savings Feature On or OFF
	RUN/HOLD*	CS (3)	1, 2, 3, 4, 5, 6	If CS selected On, selects Cool Savings value
3	RUN/HOLD*	E (On)	OFF	Select Energy Management Recovery On or OFF
4	RUN/HOLD*	CR Heat (ME)	FA, SL	Select Adjustable Anticipation, cycle rate, Heat Single Stage
5	RUN/HOLD*	CR Cool (FA)	SL	Select Adjustable Anticipation, cycle rate, Cool Single Stage
6	RUN/HOLD*	CL (OFF)	On	Select Compressor lockout OFF or On
7	RUN/HOLD*	L (On)	OFF	Select Display Light On or OFF
8	RUN/HOLD*	Temp (0 HI)	4 LO to 4 HI	Select temperature display adjustment higher or lower
9	RUN/HOLD*	°F	°C	Select °F / °C Display (temperature units in Fahrenheit or Celsius)
10	RUN/HOLD*	Change Filter (OFF)	On	Select filter replacement indicator OFF or On
	RUN/HOLD*	Change Filter (200 h)	25 to 1975	If Change Filter selected On, selects time interval for Change Filter Indicator. (in 25 hour increments)
11	RUN/HOLD*			Returns to normal operation

*Press RUN/HOLD to advance to next item or TIME to move backwards to previous item

1) System Configuration - Selects SS (Single Stage) or HP (Heat Pump) operating mode. Default configuration is SS. For Heat Pump operation choose HP.

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 occur when the cooling system is continuously running 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.

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:

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.

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.

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.

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

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 to Heating System.

1. Move fan switch to ON position. The blower should begin to operate.
2. Move fan switch to AUTO position. The blower should stop immediately.

Heating System

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. The system should begin to operate.
3. Press to adjust temperature setting below room temperature. The heating system should stop operating.

Cooling System

To prevent compressor and/or property damage, if the outdoor temperature is below 50^oF, 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).
3. Press to adjust temperature setting above room temperature. The cooling system should stop operating.

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.

MANUAL OPERATION

• HOLD TEMPERATURE — With the SYSTEM switch set to HEAT or COOL, momentarily press RUN/HOLD button. HOLD will be displayed. Use or to adjust the temperature. The thermostat will hold the room temperature at the selected setting until you press RUN/HOLD button to start program operation again.
• TEMPERATURE OVERRIDE (TEMPORARY HOLD) — Press or until the temperature you want is displayed. 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.

PROGRAMMING

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.

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/HOLD 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, 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).

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

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 or until you reach the current day of the week.

SAMPLE
Heating/Cooling Schedule Plan
(Factory Program)

Enter Heating Program

1. Move the SYSTEM switch to HEAT.
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 (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).
3. Press or to change the displayed temperature to your selected temperature for the 1st heating program period.
4. 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 temperature mode.
5. Press PRGM once. The currently programmed start time and setpoint temperature for the 2nd heating program period will appear.

Heating/Cooling Schedule Plan

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.

Enter Cooling 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.

CHECK YOUR PROGRAMMING

Follow these steps to check your thermostat programming one final time before beginning thermostat operation.

1. Move SYSTEM switch to HEAT position.
2. Move SYSTEM switch to COOL position.
3. Move SYSTEM switch to HEAT or COOL and press RUN/ HOLD to begin program operation.

YOUR THERMOSTAT IS NOW PROGRAMMED AND READY TO PROVIDE MAXIMUM COMFORT AND EFFICIENCY!