Honeywell RTH7400 Operating Manual

Honeywell RTH7400 Thermostat manual cover

Pages 56

Year 2013

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Honeywell RTH7400 Thermostat Specification

The Honeywell RTH7400 Thermostat is a programmable device designed to provide efficient and user-friendly climate control in residential settings. It operates on a 24-volt system and is compatible with most conventional and heat pump systems. The thermostat features a clear, backlit digital display that provides easy readability in various lighting conditions, showing current temperature settings and operational status.

This model supports a 5-1-1 programming schedule, allowing users to set separate temperature programs for weekdays, Saturdays, and Sundays, optimizing energy usage and comfort. It offers precise temperature control within +/- 1 degree Fahrenheit, ensuring consistent indoor climate regulation. The device includes temporary and permanent hold settings, giving users flexibility in maintaining desired temperatures outside of programmed schedules.

Installation is straightforward, with a user-friendly interface and step-by-step instructions, making it accessible for DIY homeowners. The thermostat is equipped with an auto changeover feature that automatically switches between heating and cooling modes based on temperature settings, enhancing user convenience. It also provides filter change reminders and low battery alerts to ensure optimal performance and maintenance.

The RTH7400 is compatible with multi-stage heating and cooling systems, including up to two stages of heating and two stages of cooling, as well as heat pumps with auxiliary heat. It supports both hardwired installation and battery-powered operation, offering versatility in installation options. The Honeywell RTH7400 is Energy Star certified, reflecting its commitment to energy efficiency and environmental sustainability. This thermostat combines advanced features with ease of use, making it a reliable choice for homeowners seeking effective temperature management solutions.

Honeywell RTH7400 Thermostat F.A.Q.

How do I reset the Honeywell RTH7400 Thermostat?

To reset the Honeywell RTH7400, turn off the thermostat, remove it from the wall plate, remove the batteries, and wait for 10 seconds. Reinsert the batteries and place the thermostat back on the wall plate.

How can I change the temperature setpoint on the Honeywell RTH7400?

To change the temperature setpoint, press the up or down arrow buttons on the thermostat until you reach the desired temperature.

Why is my Honeywell RTH7400 not turning on the heating or cooling?

Check if the thermostat is set to the correct mode (heat or cool). Ensure that the circuit breaker is not tripped and that the HVAC system is powered.

How do I program a schedule on the Honeywell RTH7400?

Press the 'Set' button, select 'Program', and then use the arrow keys to set the desired time and temperature for each period of the day. Confirm each setting by pressing 'Set' after each entry.

What should I do if the display on my Honeywell RTH7400 is blank?

First, check if the thermostat has power by inspecting the batteries or the wiring connections. Replace the batteries if needed, or check the circuit breaker.

How do I switch from Fahrenheit to Celsius on the Honeywell RTH7400?

Access the system settings by pressing and holding the 'Up' and 'Fan' buttons simultaneously. Navigate through the options to change the temperature scale.