Emerson 1F97-391 operating instructions Keypad Lockout, Thermostat Startup After Total Power Loss

Page 36

display in low light conditions, and allow for armchair programming.

CHECK BATTERY will be displayed when the batteries are low. To assure optimum performance, change batteries once a year or when CHECK BATTERY is displayed. When changing batteries, always replace all three batteries with new “AA” alkaline batteries (for optimum performance, we recommend Energizer® batteries). If the batteries must be changed frequently, it may indicate a problem with the system. Contact the heating/ cooling system manufacturer or a service person. Remember that excessive use of the display light will reduce battery life.

Keypad Lockout.

This security feature allows you to lock out the keypad to prevent unauthorized tampering with the program. Two levels of security are

available, Total Keypad Lockout or Partial Keypad Lockout. Total Keypad Lockout renders all buttons inopera- tive. Partial Keypad Lockout allows

only the or to operate for temporary temperature overrides. It also limits the temperature to the maximum heating and minimum cooling temperatures used in your program. This is especially useful in buildings where unscheduled events are common. Anyone can change the temperature, but only between the temperatures you set and only for two hours or the number of hours you specify if you set up your Hold Till timing (see Temporary Program Override, page 31). To select or deselect this feature, refer to the CONFIGURATION section (page 19, steps 12 and 13).

34

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 temperature of 62°F (16°C) and a cooling temperature of 85°F (29°C). A total loss of power will occur when you lose 24 VAC power to the thermostat, and you have no battery backup. If this happens, the thermostat display will go blank in about one minute after power loss.

When power is restored, the thermostat will automatically return to the temperatures listed above. If this happens, set the clock and day of the week (use steps 1 through 6 from “Entering Your Program”, page 24), then select HEAT, COOL or AUTO using the SYSTEM . button, and press PROGRAM RUN to resume operation with your previously set program.

Page 35 Page 37
Image 36
Page 35 Page 37
Contents SeriesTM Easy, Menu-Driven Set-Up Programming Introduction Installation/Configuration Introduction Introduction Specifications Precautions Page Configuring Programming Thermostat baseWiring Diagrams Letter Identification for Wiring Diagrams From heating system Through zone valve Typical wiring diagram for heat/cool, two-transformer system Typical wiring diagram for three-wire cooling system Typical wiring diagram for 24V humidifier system Typical wiring diagram for 120V humidifier system Configuration Jumpers Jumper locations Configuration Menu Configuration Menu cont’d Configuration Adjustable Anticipation Cool FAN-ON FAN-OFF DelayConfiguration Optional Remote Temperature SenseCompressor Lockout Disabling HEAT, COOL, or Auto ModesCheck Thermostat Operation FAN OperationHeating System Until FAN Auto isResetting Thermostat Cooling SystemManual Operation Bypassing the Program Programmed Operation Planning Your ProgramCool, or Auto Entering Your Program To Set the ClockProgramming Day Sample Heat Program Schedule Shows factory programming Day Sample Cool Program Schedule Shows factory programming Day Personal Heat Program Schedule Day Personal Cool Program Schedule Features Pushbutton Backlight Factory PreprogrammingArm Chair Programming Temporary Program OverrideAdjustable Temperature Display Automatic Heat/Cool ChangeoverProgrammable Vacation Time/ Temperature Operation Battery Back-UpProgrammable Fan Control Daylight Savings Time ButtonThermostat Startup After Total Power Loss Keypad LockoutAir Filter Change-Out Indicator System Thermostat DiagnosticsCompressor Short-Cycle Protection Adjustable Humidity Display Humidifier Maintenance IndicatorHumidifier Control Monitoring Programmable Automatic Humidity ReductionFAQs 1F97-391 Word Check BatteryFAQs FAQs 1F97-391 FAQs 1F97-391 Troubleshooting Does not click, try the reset operation by pressing Temperature Display Adjustment in the Configuration To the Configuration section page 19, step Index Index Page Page Part no -6459A

1F97-391 specifications

The Emerson 1F97-391 is a sophisticated, programmable thermostat designed to enhance comfort and efficiency in residential heating and cooling systems. With its sleek design and user-friendly interface, this thermostat stands out for those looking to upgrade their home climate control.

One of the main features of the Emerson 1F97-391 is its ability to be programmed for up to seven days. This allows users to set different temperature schedules for different days of the week, which is particularly useful for families with varying routines. The thermostat also boasts a large, backlit display that makes it easy to read temperature settings and other information, even in low-light conditions.

In terms of technology, the Emerson 1F97-391 is equipped with Smart Response technology, which learns your heating and cooling patterns and adjusts accordingly. This feature is designed to ensure that your home reaches the desired temperature by the time you're scheduled to arrive, optimizing energy efficiency. Additionally, the thermostat can be paired with Wi-Fi connectivity, allowing for remote access through a mobile app. This means users can adjust their home’s temperature from anywhere, ensuring comfort upon arrival.

Another significant characteristic of the Emerson 1F97-391 is its compatibility with a wide range of HVAC systems, including single-stage and multi-stage systems, heat pumps, and gas or electric furnaces. This versatility makes it an ideal choice for a variety of homes and setups.

Moreover, the thermostat features a built-in humidity sensor, providing users with not only temperature control but also the ability to monitor and manage indoor air quality. This is crucial for maintaining a comfortable living environment and can contribute to overall health and well-being.

The Emerson 1F97-391 also incorporates energy-saving functions such as Eco mode and built-in reminders for filter changes. These features help users maintain their systems efficiently while ensuring optimal performance over time.

In summary, the Emerson 1F97-391 is a modern thermostat offering programmable capabilities, advanced technology like Smart Response, and compatibility with various HVAC systems. It encompasses features focused on energy efficiency and user convenience, making it an excellent choice for anyone seeking to enhance their home’s climate control system.
Top Page Image Contents