Emerson 1F97-391 Compressor Lockout, Disabling HEAT, COOL, or Auto Modes, Configuration

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compressor and the fan to come on at slightly different times, which allows full power to the compressor on start up.

The fan off delay allows the fan to continue running after the compressor has shut off. This distributes the cooling that would otherwise stay trapped in the air conditioning coils through the ducts. Ideally the timing would be set so the fan shuts off just as the cool air is exhausted. If this timing is set too long the fan may begin blowing warm air before it shuts off. Shortening the fan-off delay will prevent this.

COMPRESSOR LOCKOUT

This thermostat is designed with an optional compressor lockout feature. It is designed to protect the system against premature compressor failure

by “locking out” the compressor for at least five minutes after each cycle. When the thermostat is in compressor lockout, the word COOL will flash on the display. During this period, the compressor will not be energized.

Selecting COMP LOCK ON in the configuration menu (page 18, step 6) will enable this feature.

DISABLING HEAT, COOL, OR AUTO MODES

The automatic changeover feature of this thermostat can be disabled (automatic changeover allows the thermostat to switch between heating and cooling to maintain temperature). If this thermostat is controlling a heating-only or cooling-only system, the heat, cool, or auto modes can be disabled.

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CONFIGURATION

Lockout Bypass Option

FOR QUALIFIED SERVICE TECHNICIANS’ USE ONLY. HOMEOWNERS SHOULD NOT USE THIS FEATURE DUE TO POSSIBILITY OF EQUIPMENT OR PROPERTY DAMAGE, OR PERSONAL INJURY.

To override this feature for one cycle while testing thermostat operation, press SET TIME and SET DAY buttons at the same time.

OPTIONAL REMOTE TEMPERATURE SENSE

An optional remote sensor (part # F145-1328) can be attached to this thermostat and may be wired as far

Installation/Configuration

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Contents SeriesTM Easy, Menu-Driven Set-Up Programming Introduction Installation/Configuration Introduction Introduction Specifications Precautions Page Thermostat base Configuring ProgrammingWiring 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 Cool FAN-ON FAN-OFF Delay Configuration Adjustable AnticipationDisabling HEAT, COOL, or Auto Modes ConfigurationOptional Remote Temperature Sense Compressor LockoutUntil FAN Auto is Check Thermostat OperationFAN Operation Heating SystemCooling System Resetting ThermostatEntering Your Program To Set the Clock Manual Operation Bypassing the ProgramProgrammed Operation Planning Your Program Cool, or AutoProgramming 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 Temporary Program Override Pushbutton BacklightFactory Preprogramming Arm Chair ProgrammingAutomatic Heat/Cool Changeover Adjustable Temperature DisplayDaylight Savings Time Button Programmable Vacation Time/ Temperature OperationBattery Back-Up Programmable Fan ControlKeypad Lockout Thermostat Startup After Total Power LossCompressor Short-Cycle Protection Air Filter Change-Out IndicatorSystem Thermostat Diagnostics Humidifier Maintenance Indicator Adjustable Humidity DisplayProgrammable Automatic Humidity Reduction Humidifier Control MonitoringWord Check Battery FAQs 1F97-391FAQs 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.
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