Honeywell Home RTH7400, RTH7500 Series Programmable Thermostat Quick Installation Guide
Included in your box
- Honeywell Home RTH7400/RTH7500 Thermostat
- UWP™ Mounting System (UWP)
- Screws and anchors
- Quick Install Guide
Tools you will need
- Phillips screwdriver
- Small flat head screwdriver
- Pencil
- Level
Tools you may need
- Wire stripper
- Needle-nose pliers
- Drill and drill bit (See step 11)
Removing your old thermostat
Step 1: Turn power OFF
To protect yourself and your equipment, turn off the power at the breaker box or switch that controls your heating/cooling system. [Breaker box with ON/OFF switch diagram]
Step 2: Check that your system is off
Change the temperature on your old thermostat. If you don't hear the system turn on within 5 minutes, the power is off. Note: If you have a digital thermostat with a blank display, skip this step. [Thermostat display showing 75°]
Step 3: Remove the old thermostat's faceplate
On most thermostats, you can take off the faceplate by grasping and gently pulling. Some thermostats may have screws, buttons, or clasps. Do not remove any wires from your thermostat at this time! [Diagram showing faceplate removal]
Step 4: Check for 120 V/240 V wires
Do you have thick black wires with wire nuts? Is your thermostat 120 V or higher? If you answered yes to either of these questions, you have a line voltage system and the thermostat will not work. If you are unsure, visit resideo.com. [Diagram showing thick black wires with wire nuts and a crossed-out symbol]
Wiring Preparation
Step 5: Take a picture of your wiring
Take a picture of how your wiring looks right now, including the letters next to the terminals where the wires are inserted. This will be a helpful reference when wiring your thermostat. Tip: If wire colors have faded or terminals have the same color, use the provided wire labels. [Diagram showing taking a photo of wiring]
Step 6: Remove any jumpers
A jumper connects one terminal to another. It may look like a small staple or colored wire and must be removed before continuing. Use a screwdriver to release wires. The RTH7400/RTH7500 thermostat does not need jumpers. [Diagram showing a jumper connection]
Step 7: Record terminal connections
Record if you have wires in the following terminals (do not include jumpers):
| Terminal | Wire Color |
|---|---|
| R | |
| RH | |
| Rc |
Step 8: Write down wire colors
Check the wires connected to terminals and write down their colors. Do not include jumpers.
| Terminal | Wire Color | Terminal | Wire Color |
|---|---|---|---|
| ☐ Y | ☐ A or L/A | ||
| ☐ Y2 | ☐ O/B | ||
| ☐ G | ☐ W2 or AUX | ||
| ☐ C | ☐ E | ||
| ☐ W | |||
| ☐ K |
The RTH7400/RTH7500 thermostat does not support L/A, S, or U terminals. Visit resideo.com for additional wiring support.
Installing your RTH7400/RTH7500 thermostat
Step 9: Disconnect wires and remove old wall plate
Use a screwdriver to release wires from terminals. Use wire labels to identify each wire. The label letter should match the terminal letter. Tip: Wrap wires around a pencil to prevent them from falling back into the wall. [Diagram showing wire disconnection and labeling]
Step 10: Bundle and insert wires through the UWP
Pull open the UWP and insert the bundle of wires through the back. Ensure at least 1/4-inch (6.3 mm) of each wire is exposed for easy insertion into terminals. [Diagram showing wire insertion into UWP]
Step 11: Insert wall anchors
Use the included wall anchors. Use the UWP to mark anchor locations. a) Level the wall plate. b) Mark anchor locations with a pencil. c) Drill holes: 7/32" (5.6 mm) for red anchors, 3/16" (4.8 mm) for yellow anchors. d) Insert anchors. e) Ensure anchors are flush with the wall. [Diagram showing drilling and anchor insertion]
Step 12: Set R-switch and insert R-wire(s)
Set the R-switch up or down based on your wiring notes from Step 7. Insert wires into the inner holes of the UWP terminals. Tabs will stay down once wire is inserted.
If you have 1 R-wire (R, Rh, or Rc): 1. Set R-switch to the up position. 2. Insert R-wire into R-terminal. [Diagram for 1 R-wire connection]
If you have 2 R-wires (R or Rh, and Rc): 1. Set R-switch to the down position. 2. Insert Rc wire into Rc-terminal. 3. Insert R or Rh wire into R-Terminal. [Diagram for 2 R-wire connection]
Step 13: Connect wires
Depress terminal tabs to insert wires into the UWP terminals (one wire per terminal) until firmly in place. Gently tug wires to verify they are secure. Tip: To release wires, push down the terminal tabs on the sides of the UWP. [Diagram showing wire connection into UWP terminals]
Step 14: Mount the UWP and close the door
Mount the UWP using the provided screws (3 screws total for a secure fit). Close the door when finished. [Diagram showing UWP mounting with screws]
Step 15: Confirm wiring matches snapshot
Confirm wiring matches terminals from the photo taken in Step 5.
Step 16: Install batteries
Insert two AA alkaline batteries in the back of the thermostat. [Diagram showing battery installation]
Step 17: Attach your thermostat
Align the thermostat onto the UWP and firmly snap it into place. [Diagram showing thermostat attachment to UWP]
Set date and time
Step 18: Turn your power ON
Turn on the power at the breaker box or switch that controls the heating/cooling system. [Breaker box and switch diagram]
Step 19: Set the date
Press [+] or [-] to adjust the year, then press [Select]. Press [+] or [-] to adjust the month, then press [Select]. Press [+] or [-] to adjust the day, then press [Select]. [Thermostat display showing DATE setting]
Step 20: Choose a clock format
Press [+] or [-] to set the clock format (12-hour or 24-hour). Press [Select]. [Thermostat display showing 12HR/24HR setting]
Step 21: Set the time
Press [+] or [-] to adjust the hour, then press [Select]. Press [+] or [-] to adjust the minutes, then press [Select]. [Thermostat display showing TIME setting]
System Setup
NOTE: If this is not a new installation, see page 14 for entering the setup menu.
Step 22: Select System Setup options
Press [+] or [-] to change values or select options. Press [Select] to save and advance. See "System Setup options" below for a full list. Repeat until all options are set. The thermostat will save and exit automatically.
Step 23: Continue to "System operation settings"
System Setup options
| Number | Description | Options (factory default in bold) |
|---|---|---|
| 120 | Scheduling Options | 0 = Non-Programmable 1 = 1-Week Programmable 2 = 5-2 Programmable (RTH7560 only) 3 = 5-1-1 Programmable (RTH7460 only) 4 = 7-Day Programmable (RTH7560 only) Note: You can change default MO-FR, SA-SU schedule here. To edit periods during days, temperature setpoints, or to turn Schedule On/Off, touch MENU and go to SCHEDULE. |
| 125 | Temperature Indication Scale | 0 = Fahrenheit 1 = Celsius |
| 200 | Heating System Type | 1 = Conventional Forced Air Heat 2 = Heat Pump 3= Radiant Heat (Boiler) 5 = None (Cool Only) Note: This option selects the basic system type your thermostat will control. |
| 205 | Heating Equipment Type | Conventional Forced Air Heat: 1 = Standard Efficiency Gas Forced Air 2 = High Efficiency Gas Forced Air 3 = Oil Forced Air 4 = Electric Forced Air 5 = Hot Water Fan Coil Heat Pump: 7 = Air to Air Heat Pump Radiant Heat: 9 = Hot Water Radiant Heat 12 = Steam Note: This option selects the equipment type your thermostat will control. Note: This feature is NOT displayed if feature 200 is set to Cool Only. |
| 218 | Reversing Valve O/B | 0 = O (O/B in Cool) 1 = B (O/B in Heat) Note: This option is only displayed if the Heat Pump configured. Select whether reversing valve O/B should energize in cool or in heat. |
| 220 | Cool Stages / Compressor Stages 200=Conv / 200=HP | 0, 1, 2 Note: Select how many Cool or Compressor stages of your equipment the thermostat will control. Maximum of 2 Cool/Compressor Stages. Set value to 0 if you do not have Cool Stage/Compressor Stage. |
| 221 | Heat Stages / Backup Heat Stages Heat Stages | Heat Stages: 1, 2 Backup Heat Stages: 0, 1 Note: Select how many Heat or Aux/E stages of your equipment the thermostat will control. Maximum of 2 Heat Stages for conventional systems. Maximum of 1 Aux/E stage for systems with more than 1 heating equipment type. Set value to 0 if you do not have Heat Stage/ Backup Heat Stage. |
| 300 | System Changeover | 0 = Manual 1 = Automatic Note: Thermostat can automatically control both heating and cooling to maintain the desired indoor temperature. To be able to select “automatic” system mode on thermostat home screen, turn this feature ON. Turn OFF if you want to control heating or cooling manually. |
| 425 | Smart Response | 0 = No 1 = Yes Note: Smart Response is a comfort setting. Heat or Cooling equipment will turn on earlier, ensuring the indoor temperature will match the setpoint at the scheduled time. See page 15. |
| 430 | Minimum Cool Temperature Setpoint (RTH7500 Only) | 50 °F to 99 °F (50 °F) 10.0 °C to 37.0 °C (10.0 °C) Note: The cool temperature cannot be set below this level. |
| 431 | Maximum Heat Temperature Setpoint (RTH7500 Only) | 40 °F to 90 °F (90 °F) 4.5 °C to 32.0 °C (32.0 °C) Note: The heat temperature cannot be set above this level. |
| 711 | Air Filter 1 Replacement Reminder | 0 = Off 1 = 10 Run Time Days 2 = 20 Run Time Days 3 = 30 Run Time Days 4 = 45 Run Time Days 5 = 60 Run Time Days 6 = 90 Run Time Days 7 = 120 Run Time Days 8 = 150 Run Time Days 9 = 30 Calendar Days 10 = 45 Calendar Days 11 = 60 Calendar Days 12 = 75 Calendar Days 13 = 3 Calendar Months 14 = 4 Calendar Months 15 = 5 Calendar Months 16 = 6 Calendar Months 17 = 9 Calendar Months 18 = 12 Calendar Months 19 = 15 Calendar Months Note: Set a reminder for when to change your air filter. Choose either calendar or equipment run time-based reminder. |
| 1415 | Daylight saving time | 0 = Off 1 = On Note: Set to Off in areas that do not follow Daylight Saving Time. |
System operation settings
System modes
Press the [Mode] button to cycle through available System modes. The thermostat selects heating or cooling as needed (Auto), controls only heating (Heat), only cooling (Cool), auxiliary heat (Em Heat for heat pumps), or is Off. Note: Heat/Cool may flash for 5 minutes due to compressor protection. [Thermostat display showing System Modes]
Fan operation settings
Fan modes
Press the [Fan] button to cycle through available Fan modes. Modes include Auto (fan runs with heating/cooling), On (fan always on), or Circ (fan circulates randomly, RTH7500 only). [Thermostat display showing Fan Modes]
Program Schedule
You can program four time periods daily (Wake, Away, Home, Sleep) with different settings for weekdays and weekends to reduce heating/cooling expenses. Example schedule: Wake (6:00 am) Heat 70°F, Cool 78°F; Away (8:00 am) Heat 62°F, Cool 85°F; Home (6:00 pm) Heat 70°F, Cool 78°F; Sleep (10:00 pm) Heat 62°F, Cool 82°F. [Table showing example schedule]
To adjust schedules: Press [Menu] → PROG → [Select] → ON → [Select]. Select day(s) → [Select]. Select period (Wake, Away, Home, Sleep) → [Select]. Turn period ON/OFF → [Select]. Adjust time → [Select]. Adjust Heat setpoint → [Select]. Adjust Cool setpoint → [Select]. Repeat for other periods. Press [Home] to save. [Diagrams showing schedule adjustment]
Program schedule override
Temporary override
Press [+] or [-] to adjust the temperature. The new setpoint is held until the next scheduled period. To cancel, press [+] or [-] then [Cancel]. [Thermostat display showing Temporary Hold]
Permanent override
Press [+] or [-] to adjust the temperature. TEMPORARY HOLD will display; press [Hold] (Mode button) to change to Permanent Hold. To cancel, press [+] or [-] then [Cancel]. [Thermostat display showing Permanent Hold]
Wiring
Conventional systems
Alternate wiring (conventional systems)
If labels do not match terminals, connect wires as shown. Notes: Connect both R and Rc wires with R Slider Tab down (2 wires). If old thermostat had R and RH, connect R to Rc and RH to R. If old thermostat had 1 C or C1 wire, connect to C. If 2 C or C1 wires, wrap separately and do not connect. [Diagram showing conventional wiring connections]
Heat pump systems
Connect wires: heat pump
Match labeled wires to thermostat letters and insert into terminals. If insertion is difficult, press the terminal push button. If labels don't match, see page 13. [Diagram showing heat pump wiring connections]
Alternate wiring (for heat pumps only)
Notes: Keep R Slider Tab up (1 wire). If old thermostat had V and VR wires, contact a contractor. If O and B wires were separate, connect B to C terminal. If another wire is attached to C, contact contractor. If Y1, W1, W2 wires were present, contact contractor. Terminal C does not power the thermostat; batteries are always required. This model does not support the L/A terminal (heat pump fault alert); contact contractor for replacement if needed. Do NOT use W for heat pump applications; auxiliary heat must wire to AUX or E.
Advanced menu
Press and hold [Menu] and [+] for ~5 seconds to enter. Press [Select] to enter System Setup (ISU). Press [Select] to cycle through System Setup numbers. Press [+] or [-] to change values. Press [Select] to save and advance. Press [Select] on "Done" to save and exit. Press [Home] to exit early. [Diagrams showing advanced menu navigation]
Smart Response® Technology
This feature allows the thermostat to learn how long your HVAC system takes to reach programmed temperature settings, ensuring the desired temperature is met at the scheduled time. The message "Recovery" appears when the system activates before a scheduled period. [Thermostat display showing "Recovery"]
Battery replacement
Install fresh AA alkaline batteries immediately when the low battery icon appears (approx. 2 months before depletion). Replace batteries annually or before leaving home for over a month, even if the icon doesn't appear. Replacing batteries within 2 minutes preserves time/day settings. [Low battery icon illustration]
Setting the time
Press [Menu] → PROG → TIME → [Select]. Choose 12HR or 24HR format → [Select]. Adjust hour → [Select]. Adjust minutes → [Select]. [Thermostat display showing time setting]
Set the date
Press [Menu] → PROG → DATE → [Select]. Adjust year → [Select]. Adjust month → [Select]. Adjust day → [Select]. [Thermostat display showing date setting]
Setting degrees Fahrenheit (F) or Celsius (C)
Press [Menu] → PROG → F/C → [Select]. Adjust to desired setting (F or C) → [Select]. [Thermostat display showing F/C setting]
Alert screen
An alert icon [⚠] appears on the home screen. Access alerts via [Menu] to view error/alert codes. The alert symbol remains until cleared. Snoozed alerts reappear 7 days after dismissal. [Thermostat display showing alert icon]
Alert Codes
| Number | Alert/Reminder | Definition |
|---|---|---|
| 170 | Internal Memory Error | Thermostat memory error. Replace thermostat. |
| 173 | Thermostat Temperature Sensor Error | Thermostat sensor error. Replace thermostat. |
| 181 | Replace Air Filter (1) | Replace air filter. Reset timer via "Dismiss" button after replacement. |
| 405 | Low Battery Alert | Batteries are low. Replace within two months. |
| 407 | Critical Low Battery | Batteries are almost depleted. Replace as soon as possible. |
Troubleshooting
If you have difficulties, follow these suggestions:
| Issue | Suggestion |
|---|---|
| Display is blank | Ensure fresh AA alkaline batteries are installed (see page 6). |
| Cannot change system setting to Cool | Check System Setup Option 220 (page 9) to ensure options are 1 or 2. |
| Fan does not turn on when heat is required | Check System Setup Option 205 (page 8) to match your heating equipment. |
| Heating system running in cool mode | Check System Setup Option 200 or 218 (page 9) to match your heating and cooling equipment. |
| Heating or cooling system does not respond | Set system to Heat and ensure temperature is higher than indoor temp. Set system to Cool and ensure temperature is lower than indoor temp. Check circuit breaker. Ensure power switch is ON. Ensure furnace door is closed. Wait 5 minutes. |
| Heat On / Cool On flashing | Compressor protection engaged. Wait 5 minutes for safe restart. |
| Heat pump issues (cool air in heat, warm air in cool) | Check System Setup Option 200 or 218 (page 9) to match your heating and cooling equipment. |
Models:
RTH7560E1001, RTH7560E1019, RTH7460D1000, RTH7460D1018
Electrical Ratings:
| Terminal | Voltage (50Hz/60Hz) | Running Current |
|---|---|---|
| W Heating | 20 Vac-30 Vac | 0.02 A-1.0 A |
| W2 (Aux) Heating | 20 Vac-30 Vac | 0.02 A-1.0 A |
| E Emergency Heat | 20 Vac-30 Vac | 0.02 A-0.5 A |
| Y Compressor Stage 1 | 20 Vac-30 Vac | 0.02 A-1.0 A |
| Y2 Compressor Stage 2 | 20 Vac-30 Vac | 0.02 A-1.0 A |
| G Fan | 20 Vac-30 Vac | 0.02 A-0.5 A |
| O/B Changeover | 20 Vac-30 Vac | 0.02 A-0.5 A |
| L/A Input | Unused | Unused |
| Input: | 2 x AA Batteries (1.5 V each) | |
1-year limited warranty
Resideo warrants this product (excluding battery) to be free from defects in workmanship or materials for one (1) year from the date of first purchase. Resideo will repair or replace defective products at its option. Warranty does not cover removal or reinstallation costs. It does not apply if damage occurred while the product was in the consumer's possession. Resideo's sole responsibility is to repair or replace the product. Resideo is not liable for incidental or consequential damages. This warranty is the only express warranty. Implied warranties are limited to one year. This warranty gives you specific legal rights. For questions, contact Resideo Customer Care at 1-800-468-1502.
Customer assistance
For assistance, visit resideo.com or call Resideo Customer Care toll-free at 1-800-468-1502.
CAUTION: ELECTRICAL HAZARD. Can cause electrical shock or equipment damage. Disconnect power before installation.
CAUTION: MERCURY NOTICE. If replacing a control with mercury, do not trash the old control. Contact local waste management for recycling instructions.
[Diagram showing how to pull the thermostat from the UWP]
