Honeywell Home RET97C Touchscreen Programmable Thermostat Owner Manual

Honeywell Home RET97C Touchscreen Programmable Thermostat 

Installation is Easy

Read and save these instructions.
For help please visit honeywellhome.com

1. Label wires and remove your old thermostat
2. Install and wire your new thermostat
3. Set your new thermostat to match your heating/cooling system
   This thermostat works with virtually all System Types
   It is preset for the most common system

Do you need assistance? We are here to help.
Call 1-800-468-1502 for wiring assistance before returning the thermostat to the store.
This thermostat works on 24 volt or 750 mV systems. It will NOT work on 120/240 Volt systems.

ATTENTION: MERCURY RECYCLING NOTICE
This product does not contain mercury. However, this product may replace a product that contains mercury. Mercury and products containing mercury should not be discarded in household trash.
For more information on how and where to properly recycle a thermostat containing mercury in the United States, please refer to the Thermostat Recycling Corporation at www.thermostat-recycle.org.
For mercury thermostat recycling in Canada, please refer to Switch the Stat at www.switchthestat.ca

This thermostat contains a Lithium battery which may contain Perchlorate material.
Perchlorate Material—special handling may apply, See www.dtsc. ca.gov/hazardouswaste/perchlorate
NOTICE: To avoid possible compressor damage, do not run air conditioner if the outside temperature drops below 50°F (10°C).

Customer Assistance

For assistance with this product, please visit honeywellhome.com. Or call Resideo Customer Care toll-free at
1-800-468-1502.
To save time, please note your model number and date code before calling. Pull at bottom to remove thermostat from wallplate.
Turn thermostat over to find model number and date code.
® U.S. Registered Trademark. Patents pending.
US Patent No. 6,595,430; 7,114,554; 7,274,972; 7,225,054 and other patents pending

Turn Off Power to the Heating/Cooling System

Remove Old Thermostat

Remove old thermostat but leave the wallplate with wires attached.

Label Wires with Tags
Label the wires using the supplied wire labels as you disconnect them, then remove the old wallplate. Wire color might not match labels.

Separate Wallplate from New Thermostat
Remove the wallplate from the new thermostat and mount onto wall.

Mount Wallplate

Mount the new wallplate using the included screws and anchors.

Drill 3/16-in. holes for drywall
Drill 3/32-in. holes for plaster

Connect Wires

Simply match wire labels.
If labels do not match letters on the thermostat, check “Alternate Wiring (Conventional Systems)” on page 6 and connect to terminal as shown here (see notes, below).
We are here to help. Call 1-800-468-1502 for wiring assistance.

Alternate Wiring (Conventional Systems)
If labels do not match terminals, connect wires as shown here (see notes, below).

1. Remove metal jumper connecting R and Rc only if you must connect both R and Rc wires.
2. If your old thermostat had both R and RH wires, remove metal jumper. 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.

Alternate Wiring

(Heat Pump)
If labels do not match letters on the thermostat, see page 7.

(For Heat Pumps Only)

1. Leave metal jumper in place, connecting R & Rc terminals.
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. If L terminal is used, C terminal wire must be connected (contact a contractor if there is no C wire).
6. If E and Aux terminals do not each have a wire connected, use a small piece of wire to connect them to each other.

Install Batteries

Install two AA alkaline batteries and remove tab.

Install Thermostat onto Wallplate
Install thermostat onto the wallplate on the wall.

Turn Power Back On
Turn the power back on to the heating/cooling system.

Set Time and Date

1. Press to set month, then press NEXT.
2. Pressto set day, then press NEXT.
3. Pressto set year, then press DONE.
4. Pressto set time, then press DONE to save and exit.

If your system type is…

If your system type is:
Single Stage Heat and Cool
Congratulations, you’re done!

If your system type is:

• Multistage Heat and Cool
• Heat Pump* without Backup Heat
• Heat Pump* with Backup Heat
• Heat Only
• Cool Only
• Continue with Advanced Installation on next page to match your thermostat to your system type.

Heat Pump—an air conditioner that provides cooling in the summer, and also runs in reverse in the winter to provide heating.
If you are not sure of your system type or if you have other questions, call us toll-free at 1-800-468-1502.
This thermostat works on 24 volt or 750 mV systems. It will NOT work on multi-stage conventional systems.

Advanced Installation

Enter System Setup

1. Press and release the left button.
2. Press and hold the center button until the screen changes (approximately 5 seconds).

Changing Settings

1. Press the button to change the setting.
2. Press NEXT to advance to next function.
3. Press DONE to save & exit.

NOTE: Some functions in the following pages may not appear due to previous selections made.

Function	Description	Setting Press the .A_ or T button to change the setting.
0120	Year Setting (first two digits)	20 = Year 20xx 21 = Year 21xx
0130	Year Setting (second two digits)	01 – 99 (i.e., 2001 – 2099
0140	Month Setting	01 – 12 (i.e., January – December)
0150	Date Setting	01 – 31

Function	Description	Setting Press the .6. or T button to change the setting.
0170	Select System Type	1    Heat/cool: Gas, oil or electric heating with central air conditioning. 2    Heat pump: Heat pump without backup or auxiliary heat. 3    Heat only: Gas, oil or electric heat without central air conditioning. 4    Heat only with fan: Gas, oil or electric heat without central air conditioning. 5    Hot water heat only (no fan): Gas, oil or hot water heat without central air conditioning. 6    Cool only: Central air conditioning only. 7    Heat pump: Heat pump with backup or auxiliary heating. 8    Heat/Cool Multiple stages: 2 heat stages (wires on W and W2), 2 cooling stages (wires on Y and Y2). 9    Heat/Cool Multiple stages: 2 heat stages (wires on W and W2), 1 cooling stage (wire on Y). 10  Heat/Cool Multiple stages: 1 heat stage (wire on W), 2 cooling stages (wires on Y and Y2).
0180	Heating Fan Control	0  Gas or oil heat: Use this setting if you have a gas or oil heating system (system controls fan operation). 1  Electric heat: Use this setting if you have an electric heating system (thermostat controls fan operation).
0190	Heat Pump Changeover Valve (for heat pumps only)	0  Cooling changeover valve: Use this setting if you connected a wire labeled “O” to the O/B terminal (see page 6). 1  Heating changeover valve: Use this setting if you connected a wire labeled “B” to the O/B terminal (see page 7).
0240	Heating Cycle Rate	5 Gas or oil furnace: Standard gas/oil furnace (less than 90% efficiency). 9 Electric furnace: Electric heating systems. 3 Heat pump, hot water or high-efficiency furnace: Hot water system or gas furnace (more than 90% efficiency). 1 Gas/oil steam or gravity system: Steam or gravity heat systems. Settings 5, 9, 3, or 1 recommended. Other settings: 2, 4, 6, 7, 8, 10, 11, 12. The number indicates how frequently the system cycles on and off to maintain the set temperature. A higher number means the system is on and off for shorter amounts of time, a lower number means longer on and off times. When these settings are set to match the system type, the thermostat controls temperature more accurately.
0270	Emergency Heat Cycle Rate (heat pumps only)	9 Electric furnace: Electric heating systems.
0300	Manual/Auto Changeover	0  Manual changeover (Heat/Cool/Off). 1  Automatic changeover (Heat/Cool/Auto/Off). Automatically turns on Heat or Cool based on room temperature. Note: System maintains minimum 3°F difference between heat and cool settings.

Function	Description	Setting Press the .6. or T button to change the setting.
0320	Temperature Format (°F/°C)	0  Fahrenheit 1  Celsius
0330	Daylight Saving Time On/Off	0  Off: No adjustment for daylight saving time. 1  On: Auto-change to daylight saving time (for areas that do not use the new 2007 DST calendar). 2  On: Auto-change to daylight saving time (2007 and beyond, for areas that use the new 2007 DST calendar).
0500	Furnace Filter Change Reminder	0  Off (no reminder) 1  Reminder in about 1 month 2  Reminder in about 3 months 3  Reminder in about 6 months 4  Reminder in about 9 months 5  Reminder in about 1 year 6  Reminder in about 3 years
0530	Smart Response® Technology	1 On 0 Off
0600	Maximum Heat Setting	90°F (other options: 40-89°F [4-32°C])
0610	Minimum Cool Setting	50°F (other options: 51-99°F [11-37°C])
0640	Clock Format	12 12-hour clock (i.e., “3:30 pm”) 24 24-hour clock (i.e., “15:30”)

About your new thermostat

Your new Resideo thermostat has been designed to give you many years of reliable service and easy-to-use, push-button climate control.

• Large touchscreen display with backlight is easy to read—even in the dark.
• Daily program schedules maximize comfort and economy.
• One-touch temp control overrides program schedule at any time.
• Precise comfort control keeps temperature within 1°F of the level you set.
• Change/check reminder lets you know when to replace furnace filter.

Thermostat controls

Display screen

Clock setting

1. To set the current time display, press CLOCK & MORE, then press to adjust the time.
   Press and holdto advance the time more quickly.
2. Press DONE to save & exit (or press GO BACK to exit without changing the time).
   NOTE: The real-time clock should never require adjustment since it automatically updates for daylight savings time, and stores all date/time information.

Program Schedule

You can program four time periods each day, with different settings for weekdays and weekends. We recommend the pre-set settings (shown in the table below), since they can reduce your heating/cooling expenses.

• Wake – Set to the time you awaken and the temperature you want during the morning, until you leave for the day.
• Leave – Set to the time you leave home and the temperature you want while you are away (usually an energy-saving level).
• Return – Set to the time you return home and the temperature you want during the evening, until bedtime.
• Sleep – Set to the time you go to bed and the temperature you want overnight (usually an energy-saving level).
  NOTE: Leave and Return periods can be canceled on weekends.

To adjust program schedules

1. Press SCHEDULE, then EDIT to see weekdays.
2. Press SELECT DAY to highlight Mon-Fri (they will share the same settings).
3. Press NEXT STEP twice, then press to set Wake time for selected days.
4. Press NEXT STEP, theto set Heat temperature for this time period.
5. Press NEXT STEP, thento set Cool temperature for this time period.
6. Repeat steps 3-5 to program other time periods (LEAVE, RETURN, SLEEP), Go Back then press DONE.
7. Repeat steps 1-6 to program Saturday/Sunday. (Pressuntil the desired day is flashing, then press SELECT DAY.)
8. Press DONE to save & exit.
   

Program schedule override (temporary)
Pressto immediately adjust the temperature. This will temporarily override the temperature setting for the current time period.
The new temperature will be maintained until the next time period. When the timer expires, the program schedule will resume and set the temperature to the level you’ve programmed for the current time period.
To cancel the temporary setting at any time, press USE SCHEDULE.

Program schedule override (permanent) 
Press to adjust the temperature, then press HOLD. This will turn off the program schedule.
Whatever temperature you set will be maintained 24 hours a day, until you manually change it, or press USE SCHEDULE to cancel “Hold” and resume the program schedule.

Auto changeover
Use this feature in climates where both air conditioning and heating are used on the same day. When the system mode is in Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature.
While in the Auto mode, if a schedule override takes place (temporarily or permanently) the thermostat will automatically adjust the cooling and heating settings to maintain a Tue 3-degree separation between the cool and heat settings.
For example, if the heat temperature is raised to where it gets within 3-degrees of the cool setting, the display will show an up arrow next to “Cool” to show the thermostat is raising the cool setting up to maintain a 3-degree separation. The display will also show both “Auto” and either “Heat” or “Cool” for which temperature setting you are currently adjusting. Press the system button to select between the heat and cool to view/adjust either mode.
CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the outside temperature drops below 50°F (10°C).

Filter reminder

If activated during installation, the furnace filter reminder alerts you when it is time to replace your filter.
Press RESET after changing the filter, to restart the timer.
To reset the reminder interval before it expires:

1. Press MORE, then NEXT.
2. Press RESET.
3. Press DONE to save and exit.

Special features

Smart Response® Technology: This feature allows the thermostat to “learn” how long the furnace and air conditioner take to reach programmed temperature settings, so the temperature is reached at the time you set. For example: Set the Wake time to 6 am, and the temperature to 70°. The heat will come on before 6 am, so the temperature is 70° by the time you wake at 6. The message “Recovery” is displayed when the system is activated before a scheduled time period. Compressor Protection: This feature forces the compressor to wait a few minutes before restarting, to prevent equipment damage. During the wait time, the message “Wait” is displayed on screen.
Auto Changeover: This feature is used in climates where both air conditioning and heating are used on the same day. When the system is set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. Heat and cool settings must be at least 3 degrees apart. The thermostat will automatically adjust settings to maintain this 3-degree separation.

Battery replacement

Batteries are optional (to provide backup power) if your thermostat was wired to run on AC power when installed. Install fresh batteries immediately when the LO BATT warning begins flashing. The warning flashes about 30 days before batteries are depleted. Even if the warning does not appear, you should replace batteries once a year, or before leaving home for more than a month.

Troubleshooting

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

• Display is blank
  Check circuit breaker and reset if necessary.
  Make sure power switch at heating & cooling system is on.
  Make sure furnace door is closed securely.
  Make sure fresh AA alkaline batteries are correctly installed.
• Temperature settings do not change
  Make sure heating and cooling temperatures are set to acceptable ranges:
  • Heat: 40° to 90 °F (4.5° to 32 °C).
  • Cool: 50° to 99 °F (10° to 37 °C).
• Heating or cooling system does not respond
  Press SYSTEM to set system to Heat. Make sure the temperature is set higher than the Inside temperature.
  Press SYSTEM 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.
• Cannot change system setting to Cool
  Check Function 0170: System Type to make sure it is set to match your heating and cooling equipment
• Fan does not turn on when heat is required
  Check Function 0180: Heating Fan Control to make sure it is set to match your heating equipment.
• Heating system is running in cool mode
  Check Function 0170: System Type to make sure it is set to match your heating and cooling equipment.
• Red light is on
  If thermostat is in Emergency Heat mode the red light is normal.
  It shows that the thermostat is in emergency heat mode.
  If thermostat is not in Emergency Heat mode, contact a qualified service contractor for repair.
• “Wait” appears 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 Function 0190: Heat Pump Changeover Valve to make sure it is properly configured for your system.

For assistance with this product, please visit honeywellhome.com or call Resideo Customer Care toll-free at 1-800-468-1502.

1-year limited warranty

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

1. return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
2. call Resideo Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address: Resideo Return Goods, 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 Resideo that the defect was caused by damage that occurred while the product was in the possession of a consumer.
Resideo’s sole responsibility shall be to repair or replace the product within the terms stated above. RESIDEO 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 RESIDEO 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 Resideo Customer Care, 1985 Douglas Dr, Golden Valley, MN 55422 or call
1-800-468-1502.
Resideo Inc., 1985 Douglas Drive North Golden Valley, MN 55422
www.resideo.com
33-00089EF—03 M.S. Rev. 05-19 |
Printed in United States
This product is manufactured by Resideo Technologies, Inc., Golden Valley, MN, 1-800-468-1502
©2019 Resideo Technologies, Inc. The Honeywell Home trademark is used under license from Honeywell International Inc. All rights reserved.

Reference

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Honeywell Home RET97C Touchscreen Programmable Thermostat Owner Manual

Honeywell Home RET97C Touchscreen Programmable Thermostat Owner Manual