Honeywell RTH5160 Series Non-Programmable Thermostat

Included in Your Box

• Screws and anchors
• UWP™ Mounting System (UWP)
• RTH5160 Thermostat
• Quick Install Guide

(Diagram shows the thermostat, UWP, and mounting hardware.)

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 (7/32 in)

Removing Your Old Thermostat

1. Turn Power OFF: To protect yourself and your equipment, turn off the power at the breaker box or the switch that controls your heating/cooling system. (Diagram: Breaker box with OFF switch, or a wall switch labeled OFF.)
2. Check That Your System Is Off: Change the temperature on your old thermostat to be above room temperature in heat mode or below it in cool mode. If you don't hear the system turn on within 5 minutes, the power is off.

   Note: If you have a digital thermostat that has a blank display, skip this step.

   (Diagram: Old thermostat displaying 75°F.)

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!

4. Make Sure There Are No 120/240V Wires:

   ⚠️ Do you have thick black wires with wire nuts?

   ⚠️ Is your thermostat 120V or higher?

   If you answered yes to either of these questions, you have a line voltage system and the thermostat will not work.

   (Diagram: Close-up of thick black wires connected with a wire nut.)

Wiring Your New Thermostat

1. Take a Picture of Your Wiring: Be sure to include the letters next to the terminals where the wires are inserted. This will be a helpful reference when wiring your new thermostat.

   Tip: If the color of your wires has faded or if 2 terminals have the same wire color, use the wire labels provided in the package to label each wire.

   (Diagram: Hand holding a wire label next to a terminal block on an old thermostat.)

2. Record R-wire(s): Record which R-wire(s) you have and write down the color of the wire(s).

   Note: Do not include jumpers as a part of your count. The thermostat does not need jumpers.

   Terminal	Wire Color
   R
   RH
   Rc

   (Diagram: Close-up of terminal block showing R, RH, Rc terminals, with an example of a jumper.)

3. Record Remaining Wires: Check mark the wires that are connected to terminals. Next to the check mark, write down the color of the wire. Do not include jumpers as a part of your count.

   Terminal	Wire Color	Terminal	Wire Color
   Y		A or L/A
   G		O/B
   C		W2 or AUX
   		E
   		W
   		K

   NOTES:

   • C does not power the thermostat display or operations; batteries are always required.
   • If K was used on old thermostat you have a wire-saver at the equipment. Re-wiring would need to be done so that Y and G are used instead of K.
   • The RTH5160 thermostat does not support L/A, S, or U terminals.
   • If there are wires in terminals that are not listed, you will need additional wiring support. Visit yourhome.honeywell.com/support to find out if the thermostat will work for you.
4. Disconnect Wires and Remove Old Wall Plate: Use a screwdriver to release wires from terminals. Use a wire label to identify each wire. The letter on the label should match the terminal letter.

   Tip: To prevent wires from falling back into the wall, wrap the wires around a pencil.

   (Diagram: Old thermostat plate being removed, showing wire labels and a pencil.)

   (Table: Wiring Labels for terminals B, Y2, C, E, F, G, H, L, O, P, R, RC, RH, T, U, V/VR, W, W1, W2, W3, X, X1, X2, Y, Y1.)

Installing Your RTH5160 Thermostat

1. Bundle and Insert Wires Through the UWP: Pull open the UWP and insert the bundle of wires through the back. Make sure at least 1/4 inch of each wire is exposed for easy insertion into the wire terminals.

   (Diagram: Wires being fed through the back of the UWP.)

2. Insert Wall Anchors: It is recommended to use the included wall anchors. Use the UWP to mark anchor locations. Level the plate, mark holes with a pencil, drill holes, insert anchors, and ensure they are flush with the wall.

   Tip: Use a 7/32 drill bit.

   (Diagram: Wall plate being mounted with anchors and screws.)

3. Set R-switch Position and Insert R-wire(s): Set the R-switch up or down based on your wiring notes from Step 6. Insert wires into the inner holes of the UWP terminals.

   NOTE: Alternate wiring options are shown on pages 11-12.

   If you have 1 R-wire (R, Rh, or Rc):

   1. Set R-switch to the up position.
   2. Insert your R-wire (R, Rh, or Rc) into the R-terminal.

   If you have 2 R-wires (R or Rh, and Rc):

   1. Set R-switch to the down position.
   2. Insert your Rc wire into the Rc-terminal.
   3. Insert your R or Rh wire into the R-Terminal.

   (Diagrams: Showing R-switch positions and wire insertion for 1 and 2 R-wires.)

4. Connect Remaining Wires: Depress the tabs to put wires into the inner holes of the UWP terminals until firmly in place. Gently tug on wires to verify they are secure.

   Tip: If you need to release a wire, push down the corresponding terminal tab on the side of the UWP.

   NOTE: Alternate wiring options are shown on pages 11-12.

   (Diagram: Wires being connected to UWP terminals, with an example wiring configuration shown.)

5. Confirm Wiring Matches Snapshot: Please confirm wiring matches terminals from the photo you took in Step 5.
6. Mount the UWP and Close the Door: Mount the UWP using the provided screws. Install all three screws for a secure fit. Close the door when finished.

   (Diagram: UWP being mounted with screws.)

7. Install Batteries: Insert two AA alkaline batteries in the back of the thermostat as shown.

   (Diagram: Steps A, B, C, D for battery installation.)

8. Attach Your Thermostat: Align the thermostat onto the UWP and firmly snap it into place.

   (Diagram: Thermostat being attached to the UWP.)

9. Turn Your Power ON: Turn on the power at the breaker box or switch that controls the heating/cooling system.

   (Diagram: Breaker box with power being turned ON, or a wall switch labeled ON.)

System Setup

Now that you have installed your thermostat, follow the steps below to set up your system and personalize your thermostat.

1. Select System Setup Options: Press Edit (-) to change values or select options. Press Next (+) to save changes and advance. See "System Setup options" on the next page for a full list. Repeat until all options are set, then press Done. The thermostat will save and exit to the home screen.

   NOTE: To re-enter System Setup from the Home Screen, press and hold the Menu button for approximately 5 seconds.

   (Diagram: Thermostat screen showing setup number 125 and option number.)

2. Continue to "System operation settings" on page 10.

System Setup Options

NOTE: Once you have cycled through all of the System Setup numbers, press Done to save and exit to the home screen.

Setup Complete

You have now finished installing and setting up your thermostat.

System Operation Settings

1. Select System Mode: Press Menu, and then press the Mode (+) button to cycle to the next available System mode.
2. Cycle Through Modes: Cycle through the modes until the required System mode is displayed, and then press Done.

   NOTE: Available System modes vary by model and system settings.

   System modes:
   • Auto: Thermostat selects heating or cooling as needed.
   • Heat: Thermostat controls only the heating system.
   • Cool: Thermostat controls only the cooling system.
   • Em Heat (only for heat pumps with auxiliary heat): Thermostat controls Auxiliary Heat. Compressor is not used.
   • Off: Heating and cooling system is off. Fan will still operate if fan is set to On.

   NOTE: Heat On/Cool On may flash for 5 minutes due to compressor protection.

   (Diagram: Thermostat screen showing Auto mode, temperature, and buttons.)

Fan Operation Settings

1. Select Fan Mode: Press Menu, and then press the Fan (-) button to cycle to the next available Fan mode.
2. Cycle Through Fan Modes: Cycle through the modes until the required Fan mode is displayed, then press Done.

   NOTE: Available Fan modes vary with system settings.

   Fan modes:
   • Auto: Fan runs only when the heating or cooling system is on.
   • On: Fan is always on.

   (Diagram: Thermostat screen showing Fan Auto mode, temperature, and buttons.)

Wiring - Conventional Systems

Alternate Wiring (Conventional Systems)

If labels do not match terminals, connect wires as shown below (see notes, below).

NOTES:

1. If you must connect both R and Rc wires, set the R Slider Tab to the down position (2 wires).
2. If your old thermostat had both R and RH wires, set the R Slider Tab to the down position (2 wires). Then connect the R wire to the Rc terminal, and the RH wire to the R terminal.
3. If your old thermostat had only 1 C or C1 wire, connect it to the C terminal. If your old thermostat had 2 C or C1 wires, wrap each separately with electrical tape and do not connect them.
4. C does not power the thermostat display or operations; batteries are always required.

(Diagram: Terminal block for conventional systems with alternate wiring examples.)

Wiring - Heat Pump

Connect Wires: Heat Pump

1. Match each labeled wire with the same letter on the new thermostat.
2. Insert the wires into the matching terminal.

NOTE: If you have difficulty inserting wires, you may have to press down the terminal push button next to the corresponding terminal.

Labels Don't Match?

If labels do not match letters on thermostat, see “Alternate wiring (conventional systems)“ above.

(Diagram: Terminal block for heat pump systems.)

Alternate Wiring (for Heat Pumps Only)

NOTES:

1. Keep R Slider Tab in the up position (1 wire).
2. If your old thermostat had both V and VR wires, stop now and contact a qualified contractor for help.
3. If your old thermostat had separate O and B wires, attach the B wire to the C terminal. If another wire is attached to the C terminal, stop now and contact a qualified contractor for help.
4. If your old thermostat had Y1, W1 and W2 wires, stop now and contact a qualified contractor for help.
5. C does not power the thermostat display or operations; batteries are always required.
6. This model doesn't support the heat pump fault alert (L/A terminal). If this is desired, please contact a contractor for replacement model.

(Diagram: Terminal block for heat pump systems with alternate wiring examples.)

Battery Replacement

Batteries are required to provide power. Install fresh batteries immediately when the low battery icon appears. The icon appears about two months before the batteries are depleted.

Even if the low battery icon does not appear, you should replace batteries once a year, or before leaving home for more than a month.

If batteries are inserted within two minutes, the time and day will not have to be reset. All other settings are permanently stored in memory, and do not require battery power.

NOTE: When replacing batteries, alkaline batteries are recommended.

(Icon: Low battery symbol ?)

Alerts Screen

1. You will see the alert icon ⚠️ and the alert number on the screen.
2. Press Next (+) to see additional alerts, if any. Then press Done to go back to the home screen.

   NOTE: If the alert is a critical alert, you may not be able to access the home screen and should call a HVAC professional.

Alerts Codes

Troubleshooting

If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily.

• Display is blank: Make sure fresh AA alkaline batteries are properly installed (see page 7).
• Cannot change system setting to Cool: Check System Setup Option 220 to make sure the options are set to either 1 or 2 (see page 9).
• Fan does not turn on when heat is required: Check System Setup Option 205 to make sure it is set to match your heating equipment (see page 9).
• Heating system is running in cool mode: Check System Setup Option 200 or 218 to make sure it is set to match your heating and cooling equipment (see page 9).
• Heating or cooling system does not respond:
  • Press Menu, and then Mode to set system to Heat. Make sure the temperature is set higher than the Inside temperature.
  • Press Menu, and then Mode to set system to Cool. Make sure the temperature is set lower than the Inside temperature.
  • Check circuit breaker and reset if necessary.
  • Make sure power switch at heating & cooling system is on.
  • Make sure furnace door is closed securely.
  • Wait 5 minutes for the system to respond.
• Heat On / Cool On flashing on the screen: Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor.
• Heat pump issues cool air in heat mode, or warm air in cool mode: Check System Setup Option 200 or 218 to make sure it is set to match your heating and cooling equipment (see page 9).

1-Year Limited Warranty

Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell's option).

If the product is defective:

• (i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
• (ii) call Honeywell Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1985 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.

This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer.

Honeywell's sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.

THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE-YEAR DURATION OF THIS WARRANTY.

Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state.

If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502. In Canada, write Retail Products ON15-02H, Honeywell Limited/ Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V4Z9.

Customer Assistance and Safety Information

⚠️ CAUTION: ELECTRICAL HAZARD

Can cause electrical shock or equipment damage. Disconnect power before beginning installation.

⚠️ CAUTION: MERCURY NOTICE

If this product is replacing a control that contains mercury in a sealed tube, do not place the old control in the trash. Contact your local waste management authority for instructions regarding recycling and proper disposal.

⚠️ ALERT: HHW PROPER DISPOSAL

This product is an electronic device and considered Household Hazardous Waste (HHW). It should not be disposed of with other household waste. Contact your local waste management authority for instructions regarding recycling and proper disposal.

For assistance with this product, please visit http://yourhome.honeywell.com.

Or call Honeywell Customer Care toll-free at 1-800-468-1502.

(Diagram: Hand pulling thermostat from UWP.)

Home and Building Technologies

In the U.S.:

Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422-3992
customer.honeywell.com

® U.S. Registered Trademark. ©2017 Honeywell International Inc. 33-00200EF-01 M.S. 08-17 Printed in U.S.A.