* LP appears only for the first two minutes when the thermostat is without power. This can occur during a power outage or when the thermal protection device inside the baseboard heater is opened.
This programmable thermostat can be used to control an electric heating system such as an electric baseboard heater, a radiant ceiling, a radiant floor, a convector or a fan-forced heater.
The thermostat cannot be used with:
SUPPLIED PARTS:
TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN POWER PANEL TO AVOID ELECTRICAL SHOCK. THE INSTALLATION MUST BE PERFORMED BY AN ELECTRICIAN.
The configuration switches are on the back of the thermostat. The factory settings are indicated by the gray cells in the following table.
SW1 | Early Start a | Off | On |
SW2 | Display format | °C / 24-hour | °F / 12-hour |
SW3 | Cycle length b | 15 seconds Baseboard heater | 5 minutes Fan-forced heater |
SW4 | Keypad lock c | Off | On |
a. Early Start can be used in Automatic mode only. When this function is enabled, the thermostat calculates the optimal time to start heating in order to obtain the desired temperature by the set time. The thermostat re-assesses the start time daily based on the previous day’s performance.
b. You must select 5 minutes if you have a fan-forced heater. The word FAN is displayed when this setting is selected. Select 15 seconds for better temperature control in most other cases.
c. The settings are locked. The temperature adjustment buttons only allow you to view the temperature setpoint.
Daylight Savings Time
The thermostat can automatically re-adjust its clock at Daylight Savings Time changeover. When this function is enabled (On), the thermostat switches to Daylight Savings Time on the second Sunday of March and to normal time on the first Sunday of November.
NOTE: The function is disabled (default setting) when the clock loses its setting.
Setpoint
The thermostat normally displays the actual temperature. To view the setpoint, press the
To change the setpoint, press the
Using a preset temperature
The thermostat has 3 preset temperatures:
Icon | Intended Use | Factory Setting |
Comfort (when at home) | 70°F (21°C) | |
Economy (when asleep or away from home) | 62°F (16.5°C) | |
Vacation (during prolonged absence) | 50°F (10°C) |
Storing a preset temperature
To store the Comfort or Economy temperature:
Set the desired temperature using the
To store the Vacation temperature:
Set the desired temperature using the
Press and hold both
Temporary Bypass: If you modify the setpoint (by pressing the
The schedule consists of 4 periods per day which represents a typical weekday. You can program the thermostat to skip the periods that do not apply to your situation. For example, you can skip periods 2 and 3 for the weekend.
Period | Description | Setting |
Wake | ||
Leave | ||
Return | ||
Sleep |
The Comfort (
You can have a different program for each day of the week; i.e., each period can start at different time for each day of the week. The thermostat has been programmed with the following schedule.
Period | Setting | MO | TU | WE | TH | FR | SA | SU |
6:00 AM | 6:00 AM | 6:00 AM | 6:00 AM | 6:00 AM | 6:00 AM | 6:00 AM | ||
8:00 AM | 8:00 AM | 8:00 AM | 8:00 AM | 8:00 AM | –:– | –:– | ||
6:00 PM | 6:00 PM | 6:00 PM | 6:00 PM | 6:00 PM | –:– | –:– | ||
10:00 PM | 10:00 PM | 10:00 PM | 10:00 PM | 10:00 PM | 10:00 PM | 10:00 PM |
To modify the schedule:
During a power outage, LP (Low Power) appears for the first minute. Then the screen becomes blank. The settings are stored in memory. After 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 re-adjusted and, if you are using the automatic Daylight Savings 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.
Problem | Solutions |
Thermostat is hot. | Under normal operation, the thermostat housing can reach a temperature between 95°F (35°C) and 104°F (40°C). |
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. |
Wrong temperature is displayed. | The thermostat is exposed to air draft. Eliminate the draft. The sticker on the thermostat’s screen has not been removed. |
Wrong time is displayed. | The thermostat was without power for more than 4 hours. |
Temperature does not change according to the programmed schedule. | Check that the thermostat is in Automatic mode. Check the schedule and clock settings. |
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. |
Display looks faded when heating is activated | The heating system is less than the required minimum load. This thermostat cannot be used below that rating. |
The settings cannot be changed. | The settings are locked (see section 3). |
E2 is displayed | The thermostat performance is reduced due to a sensor error. Please contact technical support for more information. |
Resideo warrants this product 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,
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 which 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 1800-468-1502.
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