Documents: Go to download!
- Owner's manual - (English, French)
- Thermostat controls
- Display screen
- Program Schedule
- To adjust program schedules
- Program schedule override (temporary)
- Program schedule override (permanent)
- Auto changeover (heat/cool)
- Built-in compressor protection
- Adaptive Intelligent Recovery™
- Battery replacement
- Customer assistance
- Troubleshooting
- 5-year limited warranty
Table of contents
User Manual
Thermostat controls
Display screen
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
- Press SET CLOCK/DAY/SCHEDULE, then SET SCHEDULE.
- Press
to set your weekday Wake time (Mon–Fri), then press NEXT. - Press to set the temperature for this time period, then press NEXT.
- Set time and temperature for the next time period (Leave). Repeat steps 2 and 3 for each weekday time period.
- Press NEXT to set weekend time periods (Sat-Sun), then press DONE to save & exit.
NOTE: Make sure the thermostat is set to the system you want to program (Heat or Cool).
NOTE: You can press CANCEL PERIOD to eliminate unwanted time periods (except
Wake).
Program schedule override (temporary)
Press to immediately adjust the temperature. This will temporarily override the temperature setting for the current time period.
The new temperature will be maintained only until the next programmed time period begins. For example, if you want to turn up the heat early in the morning, it will automatically be lowered later, when you leave for the day.
To cancel the temporary setting at any time, press RUN SCHEDULE.
NOTE: Make sure the thermostat is set to the system you want to control (heat, cool or auto).
Program schedule override (permanent)
Press HOLD to permanently adjust the temperature. This will override the temperature settings for all time periods.
The “Hold” feature turns off the program schedule and allows you to adjust the thermostat manually, as needed.
Whatever temperature you set will be maintained 24 hours a day, until you manually change it, or press RUN SCHEDULE to cancel “Hold” and resume the programmed schedule.
NOTE: Make sure the thermostat is set to the system you want to control (heat, cool or auto).
Auto changeover (heat/cool)
Auto Changeover is a feature 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 (called “deadband”).
The 3-degree separation between heating and cooling set temperatures is fixed, and cannot be changed.
1. Press system button until screen displays “Auto”.
NOTE: The Auto system setting may not appear, depending on how your thermostat was installed
Built-in compressor protection
Message flashes until safe restart time has elapsed.
Damage can occur if the compressor is restarted too soon after shutdown. This feature forces the compressor to wait for a few minutes before restarting. During the wait time, the display will flash the message Cool On (or Heat On if you have a heat pump). When the safe wait time has elapsed, the message stops flashing and the compressor turns on.
Adaptive Intelligent Recovery™
Adaptive Intelligent Recovery eliminates guesswork when setting your schedule. It allows the thermostat to “learn” how long your furnace and air conditioner take to reach the temperature you want.
Just set your program schedule to the time you want the house to reach your desired temperature. The thermostat then turns on the heating or cooling at just the right time to reach your scheduled temperature at your scheduled time.
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.
Note: When Adaptive Intelligent Recovery is in effect, the thermostat will display “In Recovery”.
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 REPLACE BATTERY warning begins flashing. The warning flashes about two months before the 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.
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.
Customer assistance
For assistance with this product, please visit yourhome.honeywell.com.
Or call Honeywell Customer Care tollfree at 1-800-468-1502
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 (depending on model) are correctly installed
Heating or cooling system does not respond
- Press SYSTEM button to set system Heat. Make sure the temperature is set higher than the Inside temperature.
- Press SYSTEM button 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.
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).
"Cool On” or “Heat On” is flashing
- Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor (see page 5).
To restore default settings
Follow these steps to restore default settings:
- Press SET CLOCK/DAY/SCHEDULE.
- Press SET SCHEDULE.
- Press DONE and NEXT at the same time for 4 seconds.
5-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 five (5) years 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 FIVE-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.
See other models: MN12CEDBB HF10CESWK HF10CESVWK HF08CESVWK HF08CESWK
