The system setting options vary based on your heating and/or cooling type.
NOTE − The thermostat includes a battery which makes it pos-sible for you to remove the thermostat from the wallplate during program. See page 19.
Your thermostat can control up to four different schedule periods per day:
EDIT THE SCHEDULE:
The FAN setting can be programmed for ON, AUTO or CIRC for each period selected:
You may wish to cancel a period to match your lifestyle. For example, if someone is always home during the day on Tues-day, you can cancel the LEAVE and RETURN periods to have the thermostat hold the WAKE temperature until the SLEEP period is reached.
You may use the temporary hold function to override the pro-grammed temperature setting until the next scheduled period or until a particular time that you wish.
The permanent hold function overrides the programmed temper-ature setting until the permanent hold is cancelled.
Your thermostat is equipped with a feature that accommodates recovery time to ensure your comfort.
Recovery time is the time that it takes your heating and cooling equipment to recover from energy−saving settings programmed during away or asleep periods. Recovery time depends on local weather, your schedule, the contruction of your home and your heating and/or cooling equipment.
Your thermostat tracks the time that it takes for your system to reach your desired settings (recovery period). This allows the thermostat to accommodate this recovery period and to ensure your comfort at the programmed wake and return settings.
For example, your WAKE period is programmed for 6:00 a.m. and 70°F. The thermostat activates heating in advance of 6:00 a.m. to ensure that your desired comfort setting of 70°F is reached by the time you awake. A recovery notice is displayed when the system is operating be-fore the scheduled time.
The thermostat screen may be cleaned, if necessary.
If your thermostat has batteries, a low battery warning flashes on the home screen for approximately 30 days.
IMPORTANT − Batteries should be replaced once per year to prevent leakage and to prevent loss of battery back−up in a pow-er outtage. You may also wish to replace the batteries prior to leaving your home for more than a month.
The reminder timers notify you when it is time to change the fur-nace filter, humidifier pad or ultraviolet lamp. When one of the set timers expires, a reset key appears on the home screen.
Reset Timers
View or Reset Timer Settings Before They Expire
Built−In Compressor Protection
The thermostat provides built−in compressor protection (mini-mum−off timer) that prevents the compressor from restarting too early after a shutdown.
The minimum−off timer is activated after the compressor shuts off.
If there is a demand for compressor operation during the delay, the thermostat displays the WAIT message.
When the minimum−off delay expires, COOL ON ( or HEAT ON in heat pump applications) is displayed solidly on the screen and the compressor and fan are allowed to operate to meet the de-mand.
If an optional outdoor temperature sensor has been installed with your thermostat, the outdoor temperature is displayed in the low-er right corner of the home screen.
If the temperature is not displayed and an outdoor temperature sensor has been installed, press the MORE key until the outside temperature is displayed.
Advanced Heat Pump Features (Select Models)
Some thermostat models, when used in heat pump systems which include an optional outdoor temperature sensor, provide additional features. In these applications, the compressor and/or back−up heat lockout may be based on the outside temperature.
You can fully or partially lock the keys on the touch screen. See the Advanced Settings section for more information on this fea-ture. If the thermostat displays a Screen Locked” message, your thermostat screen is either fully or partially locked.
Partially Locked Screen
When partially locked, all touch screen keys are locked except the temperature up and down arrow keys and the SYSTEM key access to the user set−up options. The Screen Locked message is displayed for 5 to 7 seconds each time the user attempts to press a key that is locked.
When the screen is partially locked, you will be able to adjust the temperature setting up or down; but schedule settings will not be accessible. The temporary temperature change lasts until the next scheduled period. Refer to Temporary Temperature Over-ride section. To cancel the temporary temperature override and return to the programmed schedule, press the CANCEL key.
Fully Locked Screen
When the screen is fully locked, you will still be allowed to access the user set−up options through the SYSTEM key; however, all other touch screen keys are locked and are not functional. The Screen Locked message is displayed continuously.
Your thermostat has many advanced settings that can be used to match your desired use of this important tool. These items have been set by the installer during the installer set−up process; how-ever, use the following information to customize the settings for your use.
Use the following steps and the User Set−Up table on pages 25 through 27 to customize your thermostat operation.
Advanced Settings (Continued) | ||
User Set− Up No. | Set−Up Name | Selection Description |
0120 | Date (Year/first) | Select first two digits of current calendar year (20 for 2007, etc.) |
0130 | Date (Year/last) | Select last two digits of current calendar year (07 for 2007, etc.) Options: 01 to 99 available. |
0140 | Date (Month) | Select number that represents current calendar month. Options 1 through 12. |
0150 | Date (Day) | Select number that represents current calendar date. Options 1 through 31. |
0160 | Schedule Op- tions | Select the type of scheduling that will be used. Options: 0− non−programmable thermostat 4− fully programmable thermostat with 7−day scheduling |
0320 | Temperature Display Scale | Select the temperature display to be used. Options: 0− Fahrenheit 1− Celsius |
Advanced Settings (Continued) | ||
User Set− Up No. | Set−Up Name | Selection Description |
0330 |
Daylight Sav- ings | Options: 0 − Off. Thermostat time is not automatically adjusted for DST. 1 − On. Thermostat time is auto- matically adjusted for Daylight Savings in the Fall and Spring (using the pre−2007 DST calen- dar) 2 − On. Thermostat time is auto- matically adjusted for Daylight Savings in Fall and Spring (using 2007 DST calendar for US and portions of Canada) |
0500 |
Filter Change Reminder | Select option for filter change re- minder timer. Options: 0 − Reminder is off 1 − 10 run time days 2 − 30 run time days 3 − 60 run time days 4 − 90 run time days 5 − 120 run time days 6 − 365 run time days |
0510 |
Humidifier Pad Replacement Reminder | Select option for humidifier pad replacement reminder timer. Op- tions: 0 − Reminder is off 1 − 90 run time days 2 − 180 run time days 3 − 365 run time days |
Advanced Settings (Continued) | ||
User Set− Up No. | Set−Up Name | Selection Description |
0520 | UV Lamp Re- placement Re- minder | Select option for UV lamp re- placement reminder timer. Op- tions: 0 − Reminder is off 1 − 365 run time days |
0540 | Number of Peri- ods | Select option for number of scheduling periods. Options: 2 − Two periods (wake and sleep) 4 − Four periods (wake, leave, re- turn, sleep) |
0640 | Clock Format | Select clock format. Options: 12 − 12−hour clock 24 − 24−hour clock |
0670 |
Screen Lock− Out | Select screen lockout. Options: 0 − All keys are functional; screen is unlocked. 1 − Screen partially locked −− only temp. up and down keys and ability to enter installer set−up mode and modify set−up selec- tions are enabled. 2 − Screen fully locked −− only ability to enter installer set−up mode and modify set−up selec- tions are enabled. |
Troubleshooting Tips | |
If… | Then… |
Key to the right of the screen key is blank. | MORE key remains blank unless the Furnace Filter Change Reminder has been turned on. See User Set−Up Number 0500. |
Display is blank. | Check that fresh AAA alkaline batteries are installed as marked on the thermostat. |
Temperature settings do not change. | Check that temperature settings are: • Heating 40°F to 90°F (4.5°C to 32°C). • Cooling 50°F to 99°F (10°C to 37°C). |
Heating system does not turn on. | • Press the SYSTEM key to set to heat. • Check the heat temperature setting to be sure it is set above the room temperature and “Heat On” is displayed solidly on the screen. • Make sure circuit breaker is not tripped. • Check the power switch at the heating and/or cooling system to make sure it is on. • Check the furnace door to make sure it is closed securely. • Wait five minutes for the heating system to respond. • If the problem has not been identified and corrected, contact a qualified service techni- cian. |
Troubleshooting Tips | |
If… | Then… |
Cooling system does not turn on. | • Press SYSTEM key to set to Cool. • Check the cool temperature setting to be sure it is set below the room temperature and “Cool On” is displayed solidly on the screen. • Make sure circuit breaker is not tripped. • Check the power switch at the heating and/or cooling system to make sure it is on. • Check the furnace door to make sure it is closed securely. • Wait five minutes for the cooling system to respond. • If the problem has not been identified and corrected, contact a qualified service techni- cian. |
Cannot set Sys- tem setting to Cool. | Check Installer Set−Up Number 170: Heating and/or Cooling Type*. Make sure the setting matches the installed heating and/or cooling system. |
“Heat On” is not displayed on the screen. | Set the System setting to Heat and set the temperature setting above the room tempera- ture. If “Heat On” is shown solidly in the dis- play, but the heating system does not turn on, see “Heating system does not turn on” suggestions on the previous page. |
Troubleshooting Tips | |
If… | Then… |
“Cool On” is not displayed on the screen. | Set the System setting to Cool and set the temperature setting below the room tempera- ture. If “Cool On” is shown solidly in the dis- play, but the cooling system does not turn on, see “Cooling system does not turn on” suggestions at the top of this page. |
“Wait” is dis- played on the screen. | Compressor minimum−off timer is activated. Wait up to five minutes for the compressor to turn on. |
Fan does not turn on in a call for heat (elec- tric furnaces only) | Check Installer Set−Up 0180: Fan Control in Heating*. Make sure Electric Heat option is selected. |
Both heating and cooling systems are op- erating at the same time. | Check Installer Set−Up Number 170: Heating and/or Cooling Type*. Make sure the setting matches the installed heating and/or cooling system. Check to ensure that bare portions of wires are not touching. |
Heating is run- ning in Cool mode. | Check Installer Set−Up Number 170: Heating and/or Cooling Type*. Make sure the setting matches the installed heating and/or cooling system. |
Troubleshooting Tips | |
If… | Then… |
Heating system does not turn off and the heat temperature setting is set below the room temperature (“Heat On” is not shown in display.) | Check Installer Set−Up Number 170: Heating and/or Cooling Type*. Make sure the setting matches the installed heating and/or cooling system. |
Red LED is lit in the upper right corner of the thermostat when the sys- tem monitor de- tects a possible problem. | A system monitor is wired to the thermostat L terminal. Refer to suggestions given in Heat- ing or Cooling System Does Not Turn On sections in this table. |
*Refer to Installation Instructions for access to Installer Set−Up procedures. |
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