Honeywell T4 Pro Programmable Thermostat User Guide

T4 ProProgrammable ThermostatUser Guide

Package Includes:

  • T4 Pro Thermostat
  • UWP™ Mounting System
  • Honeywell Standard InstallationAdapter (J-box adapter)
  • Honeywell Decorative Cover Plate – Small; size 4-49/64 in x 4-49/64 in x 11/32 in (121 mm x 121 mm x 9 mm)
  • Screws and anchors
  • 2 AA Batteries
  • Installation Instructions and User Guide

Thermostat controls

The screen will wake up by pressing any of the five buttons. If powered by the C wire, the screen stays lit for 45 seconds after you complete changes. If powered by battery only, the screen stays lit for 8 seconds. Depending on how your thermostat was installed, the screen light may always be on.

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

System operation settings

  1. Press the Mode button to cycle to the next available System mode.
  2. Cycle through the modes until the required System mode is displayed and leave it to activate.NOTE: Available System modes vary by model and system settings.System modes:– Auto– Heat– Cool– Off– Em. Heat (TH4210U only)

Fan operation settings

  1. Press the Fan button to cycle to the next available Fan mode.
  2. Cycle through the modes until the required Fan mode is displayed and leave it to activate.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.

Set the time and date

Time

  1. Press Menu, and then press + to go to TIME. Press Select.
  2. Press + or – to choose between 12 or 24 hours. Press Select.
  3. Use + or – to adjust the hour. Press Select.
  4. Use + or – to adjust the minutes.PressSelect to exit the Time menu.

Date

  1. If previously setting time, continue to Step 2. If at the Home screen, press Menu on your thermostat.
  2. Press + or – to go to DATE. Press Select.
  3. Use + or – to adjust the year. Press Select.
  4. Use the + or – to adjust the month. Press Select.
  5. Use the + or – to adjust the Date. Press Select to save and exit the Date menu.

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

Wake – Set to the time you wake up and the temperature you want during the morning, until you leave for the day.Away – Set to the time you leave home and the temperature you want while you are away (usually an energy-saving level).Home – 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: To temporarily or permanently override any of the above program schedules, see page 4.

To adjust program schedules

  1. Press Menu on your thermostat.
  2. PROG is displayed. Press Select. Then ON is displayed. (If you do not want to use a schedule, press + or – to display OFF. Press Select.)PressSelect.
  3. Press + or – to select a day or set of days to edit. Press Select.
  4. Press + or – to select a schedule period to edit (Wake, Away, Home, and Sleep). Press Select.
  5. ON is displayed. Press Select to keep the schedule period on. Or press + and then Select to turn off the schedule period.
  6. Time starts blinking. Press + or – to adjust the schedule period start time. Press Select.
  7. The temperature starts blinking. Press Jr or -to adjust the “Heat” setpoint temperature.Press Select. Press + or – to adjust the “Cool” temperature setpoint. PressSelect.
  8. Repeat steps 4 through 7 for the remaining schedule periods.
  9. Press Home when you’re finished to save and return to the home screen.
  10. Schedule can be adjusted and turned ON or OFF by returning to Menu and following the steps provided above.

Program schedule override (temporary) 

  1. Press + or – to adjust the temperature.
  2. Once at the desired setpoint temperature, no further action is needed. The new setpoint temperature will be held until the next scheduled time period begins. For more information on schedule time periods, see “Program Schedule” on page 3.
  3. To cancel the Temporary Hold, Press + or – and then press Cancel.

 

Program schedule override (permanent) 

  1. Press + or – to adjust the temperature.
  2. TEMPORARY HOLD is displayed and the setpoint temperature flashes. While it’s flashing, press the Hold (Mode) button to change to Permanent Hold.
  3. To cancel the Permanent Hold, press + or and then press Cancel.

Setting degrees Fahrenheit (F) or Celcius (C)

  1. Press Menu.
  2. Press + or – to go to F / C. Press Select.
  3. Press + or – for F or C. Then press Select.
  4. Press Select to save and exit the F / C menu.

Adjusting keypad lockout

  1. Press Menu on the thermostat.
  2. Press + or – to go to LOCK. Press Select.
  3. Press + or – to go to OFF, PART, or ON, and then press Select. OFF: Unlocked, and full access allowed.PART: Partial lockout, allowing only the temperature to be changed. ON: No access allowed.
  4. To unlock the keypad, press the CENTER button and then enter the password “1234”. To enter the password, press • or – to change the first digit of the number. Then press Select. Repeat this process to enter the second through fourth digits of the number. Once all four numbers have been entered, press Select again.
  5. This will unlock the keypad.
  6. If the code is incorrect, the screen will flash the lines “–“.
  7. Press Back to go back a step to enter the correct number and press Select.

Adjusting idle backlight display brightness

  1. Press Menu on the thermostat.
  2. Press + or – to go to LITE. Press Select.
  3. Current brightness setting is displayed (1-5).
  4. Press + or – to adjust backlight brightness.
  5. Press Select to save and exit the LITE menu.

NOTE: Backlight is only displayed if the C (common) wire is connected.

Adaptive Intelligent Recovery

Over time, the Honeywell 14 Pro Thermostat “learns” how long it takes your system to reach the temperature you want. It turns on the heating or cooling system earlier to make sure you’re comfortable at the time you expect.

Built-in compressor protection 

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 haselapsed, the message stops flashing and the compressor turns on.

Battery replacementBatteries are optional (to provide backup power) if your thermostat was wired to run on AC power when installed. If your thermostat was not wired to run on AC power, then batteries are required.

When the low battery warning appears, press gently to loosen the thermostat and then carefully pull it from the wall mount.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.

AlertsIf there is an alert or reminder, the alert icon appears on the Home screen.

Low Battery Warning

  1. The batteries need to be replaced when BATT, the alert icon , and the battery icon are displayed on the Home screen.
  2. When the battery power is very low, the thermostat’s backlight is disabled to save battery power.
  3. When battery power is critically low, only BATT, the alert icon , and the battery icon are displayed.

Air Filter Reminder

  1. The alert icon appears on the Home screen.
  2. Press Menu, and then press + until display shows ALRT.
  3. Press Select to display which alert(s) are present.
  4. The message REPL (REPLACE AIR FILTER) appears.
  5. The reminder can be snoozed or cleared. Honeywell recommends changing the air filter before clearing the reminder.
  6. To snooze, press Select. The word SNZE (SNOOZE) appears.
  7. Press Select again to snooze the reminder for 7 days.
  8. To clear, press Select, and then press + to go to CLER (Clear).
  9. Press Select to clear the air filter reminder.

Snoozing and Clearing Alerts or Reminders*

  1. Press Menu, and then press + until display shows ALRT.
  2. Press Select to display which alert(s) are present.
  3. The word SNZE (SNOOZE) appears.
  4. Press Select again to snooze the reminder for 7 days.
  5. To clear the alert, press Select, and then press + to go to CLER (Clear).
  6. Press Select to clear the reminder.

Some alerts cannot be snoozed or cleared. Please call your local heating and cooling professional if this occurs. The heating and cooling system may require service.

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 the circuit breaker and reset if necessary.• Make sure the power switch for the heating & cooling system is on.• Make sure the furnace door is closed securely.• Make sure fresh AA alkaline batteries are correctly installed (see page 6).
Heating or cooling system does not respond • Press the Mode button to set system Heat (see page 2).Make sure the desired temperature is set higher than the inside temperature.• Press the Mode button to set system Cool (see page 2).Make sure the desired temperature is set lower than the inside temperature.• Check the circuit breaker and reset if necessary.• Make sure the power switch for the heating & cooling system is on.• Make sure the furnace door is closed securely.• Wait 5 minutes for the system to respond.
Temperature settings do not change • If the display says “unlock”; see page 5. If not, verify you are in the correct mode (heat, cool, em heat or auto); see page 2.• If you are in the correct mode, but you cannot set the heat from 40 °F to 90 °F (4.5 °C to 32 °C), or set the cool from 50 °F to 99 °F (10 °C to 37 °C), you may have range-stops restricting your setting. Check with the installer to see ifthey set range stops.
“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).

5-year limited warrantyHoneywell 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.

CAUTION: ELECTRICAL HAZARDCan cause electrical shock or equipment damage. Disconnect power before beginning installation. CAUTION: EQUIPMENT DAMAGE HAZARDCompressor protection is bypassed during testing. To prevent equipment damage, avoid cycling the compressor quickly. CAUTION: MERCURY NOTICEIf 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.

Home and Building TechnologiesIn the U.S.:Honeywell1985 Douglas Drive NorthGolden Valley, MN 55422-3992http://yourhome.honeywell.com® U.S. Registered Trademark.© 2017 Honeywell International Inc.33-00188EFS—01 M.S. 02-17Printed in the U.S.A.

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