Application
This thermostat is designed to control an electric heating system such as a baseboard heater, a radiant ceiling, a convertor, or a fan-forced heater. The thermostat CAN NOT be used with:
WARNING Electrical Shock Hazard.
This thermostat is a line voltage control (120–240 Volts). Do not install it if you are not completely familiar with house wiring. If handled improperly, there is a risk of an electric shock hazard, which may cause serious injury or death. Do you need assistance? We are here to help Call 1-800-831-2823 for wiring assistance before returning the thermostat to the store.
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.caNO
CAUTION: ELECTRONIC WASTE NOTICE
The product should not be disposed of with other household waste. Check for the nearest authorized collection centers or authorized recyclers. The correct disposal of end-of-life equipment will help prevent negative consequences for the environment and human health.
SUPPLIED PARTS
Installation
TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN POWER PANEL TO AVOID ELECTRICAL SHOCK.
Wiring
Connect the thermostat wires to the power and to the load using solderless connectors for copper wires.
WARNING
Keep the thermostat’s air vents clean and free from obstructions.
Clock and day setting
Controls
The screen is backlit for 12 seconds when you press any button.
Display
To display the set temperature (setpoint), press the Up or Down button once. The thermostat will display the setpoint instead of the clock for 5 seconds
Automatic mode
In Automatic mode, the thermostat adjusts its temperature setpoint according to the period of the day. To place the thermostat in this mode, press the Mode button until Auto appears on the screen. The current period name also appears (unless the thermostat has not been programmed with a schedule). You can program up to 4 periods (Wake, Leave, Return or Sleep) in a day. You can set 2 different programs: one for the weekdays (Monday to Friday) and another one for the weekend (Saturday and Sunday). The thermostat uses the following default schedule:
Monday to Friday | Saturday & Sunday | |||
Period | Start Time | Temperature | Start Time | Temperature |
Wake | 6:00 am | 70°F (21.0°C) | 6:00 am | 70°F (21.0°C) |
Leave | 8:00 am | 62°F (16.5°C) | –:– | – – |
Return | 6:00 pm | 70°F (21.0°C) | –:– | – – |
Sleep | 10:00 pm | 62°F (16.5°C) | 10:00 pm | 62°F (16.5°C) |
Temporary Override
You can temporarily modify the setpoint temperature while the thermostat is in Automatic mode using the Up or Down button. The new setpoint will be used until the beginning of the next period. During the override, Auto flashes on the screen. You can cancel the override by pressing the button.
To modify the schedule:
Press the Pgm button. Each time you press the Pgm button, the thermostat displays one of the periods of the schedule in the following order:
Weekdays (MO TU WE TH FR) | Weekend (SA SU) | ||||||
1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 |
Press the Hour and Min buttons to set the start time of the displayed period.
NOTE: To cancel the period, press the Mode button. Instead of displaying the start time of the period, the thermostat will display –:–. During operation, the thermostat will skip over that period.
Press the Up or Down button to set the temperature. To set another period, press the Pgm button and repeat step 2 and Press the button to return to the normal display.
Manual (Man) mode
To place the thermostat in Manual mode, press the Mode button until Man appears on the screen. In this mode, any modification to the temperature setpoint must be done manually. To set the temperature, press the Up or Down button. The default setting is 70°F (21.0°C).
Away mode
To place the thermostat in Away mode, press the Mode button until Away appears on the screen. This mode is a quick way to lower the temperature to a predetermined setting before you go away for an extended length of time. The temperature is 59 °F (15.0 °C) by default and can be modified using the setup menu (see page 7).
Standby mode
To disable heating, press the Mode button until Standby appears on the screen. In this mode, the setpoint temperature cannot be displayed or modified. For frost protection, heating will turn on only to prevent the room temperature from dropping below 41 °F (5 °C).
Advanced settings
Display | Parameter | Options | Default Setting |
Temperature unit | °F / °C | °F | |
Time format | 12 hr / 24 hr | 12 hr | |
Fan1 | No / Yes | No | |
Away temperature2 | 41°F – 86°F (5.0°C – 30.0°C) | 59°F (15.0°C) | |
Daylight saving time3 | On / Off | Off | |
Year4 | 00 – 99 | 09 | |
Month4 | 01 – 12 | 01 | |
Day4 | 01 – 31 | 01 | |
Early start5 | On / Off | Off | |
Minimum setpoint | 41°F – 86°F (5.0°C – 30.0°C) | 41°F (5.0°C) | |
Maximum setpoint | 41°F – 86°F (5.0°C – 30.0°C) | 86°F (30.0°C) | |
Keypad lock6 | On / Off | Off |
Fan
Place at Yes if you have a fan-forced heater (to prevent premature burnout of the motor). Leave a No for better temperature regulation if you do not have a fan-forced heater
Away temperatures
are the temperature you wish to use when the thermostat is in Away mode (see page 6).
Daylight Saving
TimeWhen the Daylight Saving Time function is enabled (On), the thermostat automatically switches to Daylight Saving Time on the second Sunday of March and to normal time on the first Sunday of November.
Year, Month, Day
These parameters are available only if the Daylight Saving Time function is enabled (On).
Early StartEarly
The start is used in Automatic mode only. When Early Start is enabled (On), the thermostat determines when to start heating so the desired temperature is attained at the beginning of the Wake and Return periods. When Early Start is disabled (Off), heating starts only at the beginning of the Wake and Return periods; thus there is a delay before you reach the desired temperature.
Keypad lock
The settings are locked. The temperature adjustment buttons only allow you to view the temperature setpoint.
Your thermostat requires little or no attention. Most problems can generally be traced to the following:
Problem | Solution(s) |
Thermostat is hot. | This condition is normal. Ensure that the heater capacity does not exceed the thermostat’s maximum load. |
Wrong temperature is displayed. | Correct it if any of the following situations exists: • The thermostat is exposed to an air draft. • The thermostat is located near or above a heat source such as a light dimmer |
Wrong time is displayed. | The thermostat was without power for more than 5 hours. |
Temperature does not change according to the programmed schedule. | Check that the thermostat is in Automatic mode. Check the schedule and clock settings. If the thermostat is configured in 12-hour format, ensure that PM appears on the screen when afternoon times are displayed. |
LP appears on the screen or the screen is blank despite there is no power outage. | The thermal circuit breaker in the heater is opened. This can happen if the heater is obstructed by furniture or curtain and has overheated, or if the thermal circuit breaker is defective or too sensitive. |
The settings cannot be changed. | The settings are locked (see page 7). |
LO is displayed | The measured temperature is below the display range. Heating is activated. |
HI is displayed | The measured temperature is above the display range. |
E1, E2 is displayed | The thermostat performance is reduced due to a sensor error. Please contact technical support for more information. |
NOTE: All parameters, except the clock (time and day), return to their default settings when the thermostat is reset.
During a power outage, LP (low power) appears for the first minute. Then the screen becomes blank. The settings are stored in memory. After the initial installation, product must be connected to power for a minimum of two hours to enable the power outage feature. However, if the power failure exceeds 4 hours, the thermostat’s clock must be readjusted and, if you are using the automatic Daylight Saving Time changeover function, it must be re-enabled. When power returns, the thermostat will return to the mode of operation active prior to the power failure.
This Class B digital apparatus complies with Canadian ICES-003.
FCC statement at:
https://customer.resideo.com/en-US/support/residential/codes-and- standards/FCC15105/Pages/default.aspx
Resideo 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 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 Reside o’s option).
If the product is defective,
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. Reside o’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 Relations, 1985 Douglas Dr, Golden Valley, MN 55422, or call 1-800-831-2823. Resideo Technologies, Inc. All rights reserved. The Honeywell Home trademark is used under license from Honeywell International, Inc. This product is manufactured by Resideo Technologies, Inc. and its affiliates.
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