EasyManua.ls Logo

Honeywell RTH7400 series User Manual

Honeywell RTH7400 series
56 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
Operating
Manual
RTH7400/RTH7500 Series
Programmable Thermostat
69-2222ES-05

Other manuals for Honeywell RTH7400 series

Question and Answer IconNeed help?

Do you have a question about the Honeywell RTH7400 series and is the answer not in the manual?

Honeywell RTH7400 series Specifications

General IconGeneral
Display TypeDigital
ProgrammableYes
Program Periods Per Day4
Wi-Fi ConnectivityNo
Programmability7-Day
Voltage24V
BacklightYes
Power SourceBattery
BatteryAA
Temperature Range40°F - 90°F

Summary

About Your New Thermostat

Thermostat Features

Lists key features like easy programming, one-touch control, precise comfort, filter reminder, and large display.

Quick Reference to Controls

Arrow Buttons

Press to adjust temperature or make selections from screen menus.

System & Fan Button

Press to select fan operation or system mode.

Schedule Button

Press to set or adjust the program schedule.

Clock & More Button

Press to set clock or access furnace filter reminder.

Quick Reference to Status Display

Current Day of Week

Displays the current day of the week.

Current Inside Temperature

Displays the current indoor temperature reading.

Current Time

Displays the current time.

Set Temperature Display

Shows the target temperature setting.

System Setting Indicator

Indicates the active system mode (e.g., Heat, Cool, Auto).

Fan Setting Indicator

Indicates the active fan mode (e.g., On, Auto).

Other Display Messages

Explains various status messages like 'Cool On' or 'Heat On'.

Clock Setting

Setting the Current Time

Instructions to press CLOCK and use arrow buttons to adjust the current time.

Saving Clock Settings

Press DONE to save changes or GO BACK to exit without saving.

Fan Setting

Accessing Fan Settings

Press SYSTEM & FAN, then FAN to select the desired fan operation.

Fan Operation Modes

Details for 'On' (always on) and 'Auto' (runs with system) fan modes.

System Setting

Accessing System Settings

Press SYSTEM & FAN, then SYSTEM to select the system mode.

System Mode Options

Descriptions for Heat, Cool, Auto, Off, and Em Heat system modes.

Adjusting Program Schedules (RTH7400 Only)

Initiate Schedule Adjustment

Press SCHEDULE, then EDIT to begin adjusting program schedules.

Select Days for Programming

Use SELECT DAY to choose specific days or day groups for settings.

Set Wake Time

Use arrow buttons to set the Wake time for selected days.

Set Heat Temperature

Use arrow buttons to set the Heat temperature for the period.

Set Cool Temperature

Use arrow buttons to set the Cool temperature for the period.

Program Other Time Periods

Program LEAVE, RETURN, and SLEEP periods by repeating steps.

Program Weekend Schedules

Repeat steps to program Saturday/Sunday schedules.

Save Schedule Changes

Press DONE to save all programmed schedule settings.

Adjusting Program Schedules (RTH7500 Only)

Initiate Schedule Adjustment

Press SCHEDULE, then EDIT to begin adjusting program schedules.

Select Multiple Days

Use SELECT DAY to choose multiple days for common settings.

Set Wake Time (RTH7500)

Use arrow buttons to set the Wake time for selected days.

Set Heat Temperature (RTH7500)

Use arrow buttons to set the Heat temperature for the period.

Set Cool Temperature (RTH7500)

Use arrow buttons to set the Cool temperature for the period.

Program Other Time Periods (RTH7500)

Program LEAVE, RETURN, and SLEEP periods.

Program Remaining Days (RTH7500)

Repeat steps to program any unassigned days.

Save Schedule Changes (RTH7500)

Press DONE to save all programmed schedule settings.

Temporary Program Schedule Override

Adjust Temperature Temporarily

Press arrow buttons to adjust temperature, overriding the current schedule temporarily.

Resume Program Schedule

Press USE SCHEDULE to cancel temporary setting and resume the programmed schedule.

Permanent Program Schedule Override

Set Permanent Hold Temperature

Adjust temperature and press HOLD to maintain it 24 hours a day.

Cancel Permanent Hold

Press USE SCHEDULE to cancel 'Hold' and resume the program schedule.

Auto Changeover Feature

Usage Caution

CAUTION: Do not use Auto Changeover if outdoor temperature drops below 50°F (10°C).

Filter Reminder Maintenance

Reset Filter Reminder

Press RESET after changing the filter to restart the reminder timer.

Reset Reminder Interval

Manually adjust the filter reminder interval before it expires.

Special Thermostat Features

Smart Response® Technology

Allows thermostat to learn time needed to reach programmed temperature settings.

Compressor Protection

Forces compressor to wait before restarting to prevent equipment damage.

Auto Changeover Feature and Caution

Feature for dual-climate use; caution about low outdoor temperatures.

Battery Replacement

Detach Thermostat from Wallplate

Instructions on how to grasp and pull the thermostat to remove it from the wallplate.

Install Replacement Batteries

Guidance on installing two fresh AA alkaline batteries for backup power.

Customer Assistance

Troubleshooting Common Issues

Display is Blank

Steps to troubleshoot a blank thermostat display, checking power and connections.

Unresponsive Controls or Temperature Issues

Troubleshooting for when key presses don't work or temperature doesn't change.

Troubleshooting System Response

Heating or Cooling System Not Responding

Steps to resolve issues where the heating or cooling system does not respond.

One-Year Limited Warranty

Related product manuals