Emerson 1F92 manual Large Lighted Liquid Crystal Display LCD, Arm Chair Programming

Page 39

press PROGRAM RUN to resume your normal program.

Large Lighted Liquid Crystal Display (LCD).

The large numbers and letters on your LCD screen make it easy to see. In low light conditions, press the button on top of the thermostat and the display will light up for three seconds. For ten minutes after pressing the light button, pressing any other button will light the display for ten seconds.

The thermostat display alternately shows the current time and the current temperature on the left side. The display also shows the temperature you have programmed or set on the right side of your screen.

Arm Chair Programming.

The thermostat uses 24 VAC power supplied by the system for normal operation. The electrolytic capacitor allows you the added convenience of programming the thermostat even when not attached to the wallplate, Attach the thermostat to the wallplate and allow the capacitor to charge for at least one hour. After the capacitor is charged you will have approximately one hour after removing the thermostat from the wallplate to configure and program the thermostat.

Thermostat Startup After Total Power Loss.

On installation, or when power is restored after a total power loss to the thermostat, your thermostat will automatically maintain a heating

37

temperature of 62°F (16°C) and a cooling temperature of 85°F (29°C).

If the 24 volts from the Heating/ Cooling transformer is lost, your thermostat will lose its display in 2 minutes and may lose time in about 5 hours. This hold up time will be much shorter if the control had not been powered for at least 4 hours prior to the power outage. When power is restored, the thermostat will return to the temperatures listed above.

If this happens, set the clock and day of the week (use PROGRAM- MING steps 1 through 6 from “Entering Your Program” page 26), then select HEAT, EMER, COOL or AUTO using the SYSTEM key, and press PROGRAM RUN to resume operation with your

Features

Image 39
Contents Series Easy, Menu-Driven Set-Up Programming Introduction Thermostat Buttons OrientationDisplay Thermal Data InstallationSpecifications Electrical DataPrecautions Installation Remove OLD ThermostatAttach Base to Wall Thermostat base and terminals Configuring ProgrammingThermostat Terminals Upper MULTI-STAGE Terminal OutputsHeat Pump Terminal Outputs Malfunction Light Not Used Thermostat Terminals Lower E2/P Switch Configuration Switches Reset SwitchEntering the Configuration Menus Installer ConfigurationSET Cycle HEAT, COOL, AUX Anticipation MULTI-STAGE/HEAT Pump ModeHeat Pump COMPRES- SOR Configuration Electric Heat FAN ConfigurationHeating Cooling Comments Installer TableHeat Pump 1 Programmable Cool FAN-OFF and FAN-ON Delay Programmable Heat FAN-OFF DelayPump Fossil Fuel KIT Alternative Compressor Lockout Economizer FeatureFAN Operation Heating SystemUntil FAN Auto MULTI-STAGE/HEAT Pump Auxiliary Operation Test Cooling SystemResetting Thermostat Configuration and Programming Troubleshooting Reset ButtonConfiguration User Menu Keypad Lockout Menu access from User Menu To Set the Day ProgrammingProgrammed Operation Planning Your Program Entering Your Program To Set the ClockFAN Day Sample Program Schedule Shows factory programming Day Personal Program Schedule Features Adjustable Temperature DisplaySelectable Energy Management Recovery EMR Cool Fast Fahrenheit or Celsius Tem- perature DisplaySingle Period Fan Control Heat FastKeypad Lockout Traditional Features Automatic ChangeoverFactory Preprogrammed Times and Temperatures Activate RUN PRG by Telephone Compressor Run TimeProgrammable Fan Control Compressor Short-Cycle Protection System and Thermostat Diagnostics Air Filter Change-Out IndicatorIndefinite Program Hold Temporary Program OverrideDaylight Savings Time Button Programmable Vacation Time/ Temperature OperationThermostat Startup After Total Power Loss Large Lighted Liquid Crystal Display LCDArm Chair Programming Second Stage Time Delay Index FeaturesPage Page Part no -6422C