SMART THERMOSTAT -1- Model: ASMT402 INS-SMT402-US-040618 USER GUIDE
TABLE OF CONTENTS COMPATIBILITY 3 WHAT’S IN THE BOX AND TOOLS REQUIRED 3 WARNING 4 Where to install your MAESTRO controller • thermostat Read this guide and watch the installation video INSTALLING THE MAESTRO THERMOSTAT 1 Cut off power supply 2 Remove existing thermostat 3 Secure the MAESTRO thermostat mounting plate 4 Connect the wires 5 Secure the thermostat on the mounting plate 6 Turn power back on 7 Set-up basic options on first start USING THE THERMOSTAT Thermostat interface Navigating the ad
COMPATIBILITY Your MAESTRO controller • thermostat can control electric baseboards, convectors and fan-forced heaters. IMPORTANT: This thermostat is not compatible with: • Systems with inductive loads • Central heating systems • Systems with resistive loads that are: o inferior to 150 W at 120 VAC / 260 W at 208 VAC / 300 W at 240 VAC o superior to 2000 W at 120 VAC / 3400 W at 208 VAC / 4000 W at 240 VAC See page 25 for detailed technical specifications of the MAESTRO thermostat.
WARNING Before installing and operating this thermostat, the owner and/or installer must read, understand and follow these instructions and keep them handy for future reference. If these instructions are not followed, the warranty will be considered null and void and the manufacturer deems no further responsibility for this product. Moreover, the following instructions must be adhered to in order to avoid personal injuries or property damages, serious injuries and potentially fatal electric shocks.
WHERE TO INSTALL YOUR MAESTRO CONTROLLER • THERMOSTAT Install a MAESTRO thermostat in each room where you want to control the temperature. You must install the thermostat at approximately 5 ft. from the floor, on an indoor wall that faces the heating system. The thermostat must be mounted on an electrical box. ATTENTION : To avoid any risk of overheating, leave a clearance of at least 12 in. around the thermostat to ensure proper ventilation.
INSTALLING THE MAESTRO THERMOSTAT IMPORTANT INSTALLATION OF THE THERMOSTAT MUST BE DONE BY A QUALIFIED ELECTRICIAN. 1 CUT OFF POWER SUPPLY To avoid any risk of electric shock, cut off the power supply on the lead wires from the electrical panel. Make sure the power is off by checking, for example, that the heating system remains off even if the setpoint temperature is higher than the ambient temperature (mechanical thermostat).
2 REMOVE EXISTING THERMOSTAT If an existing thermostat is being replaced, remove it and disconnect its wires from the heating system and power supply. NOTE : These instructions apply to a thermostat with a °STELPRO mounting plate. 1 - Loosen the screw at the base of the thermostat, without completely removing it, to separate the thermostat from the mounting plate. 2 - Gently pull the thermostat to gain access to the wires.
3 SECURE THE MAESTRO THERMOSTAT MOUNTING PLATE Secure the MAESTRO thermostat mounting plate to the electrical box using the screws supplied. 1 - Loosen the screw at the base of the MAESTRO thermostat, without completely removing it, until the thermostat and the mounting plate are no longer holding together. 2 - Slide the mounting plate downward and then pull on it to separate it from the thermostat.
4 CONNECT THE WIRES Using the caps supplied (2), connect the wires of the MAESTRO thermostat to those of the heating system and power supply according to the corresponding connection diagram (2 or 4 wires). Tighten the caps onto the wires to ensure the connection is secure. Then place all the wires inside the electrical box. NOTE : If the electrical wires are aluminum, use CO/ALR connectors instead (not supplied).
5 SECURE THE THERMOSTAT ON THE MOUNTING PLATE Align and secure the thermostat on the mounting plate. 1 - Ensure the air vents in the thermostat are clean and clear of any obstruction. 2 - Align the slot on the top of the thermostat with the slot on the mounting plate. 3 - Then secure the thermostat to the mounting plate making sure that the wires do not get pinched between the unit and the mounting plate. 4 - Tighten the screw at the base of the thermostat to secure it in place.
6 TURN POWER BACK ON Restore power to the heating system and thermostat. Then ensure the thermostat turns on. If the thermostat does not turn on, touch any one of its buttons. The thermostat should turn on. If it doesn’t, read the Thermostat troubleshooting section on page 22. At first power up, the thermostat will ask you to set-up the basic options. If it is not the first power up, the thermostat displays the ambient temperature as well as the percentage of relative ambient humidity.
7 SET-UP BASIC OPTIONS ON FIRST START 2 settings to be set: > Temperature format (°Celsius / °Fahrenheit) > HEATING MODE (Baseboard / Fan-forced heater) Use the LEFT/RIGHT arrows to change the selection and used CENTER button to confirm.
USING THE THERMOSTAT As soon as your thermostat is installed, set the heating mode. if you want to connect your thermostat to a MAESTRO controller • thermostat, you must also set up the Zigbee connection. Install all your thermostats before connecting them to the controller • thermostat. THERMOSTAT INTERFACE MAESTRO three-button interface makes 360° comfort possible.
NAVIGATING THE ADVANCED MENUS To access the advanced menus and their options: 1 - Touch the button for three seconds to access the advanced menus. The first menu you’ll access is the Zigbee connection 2 - Touch the button again to access the next menu. The current value will flash, indicating that it can be modified. menu. 3 - Use the and buttons to select another option for the displayed menu. 4 - After selecting an option, touch the button to confirm the selection.
NAVIGATING THE °STELPRO MENU To access the °STELPRO menu touch the button on the home screen for ten seconds. NOTE: After three seconds, the advanced menus will display (menu 1). Continue touching the button until the °STELPRO menu appears. The °STELPRO menu’s sub-menus provide information about the thermostat. • t1: Thermostat version (e.g., if the thermostat displays 14, you have version 1.4 of the thermostat) • t2: Zigbee radio version (e.g., if the thermostat displays 10, you have version 1.
CONNECTING A THERMOSTAT TO THE CONTROLLER • THERMOSTAT To create your MAESTRO account, you must connect your thermostats to the MAESTRO controller • thermostat using a Zigbee network. Make sure to connect the thermostat closest to the MAESTRO controller thermostat first and then each of the other thermostats by gradually working outwards.
Without the MAESTRO app The thermostat can be connected to the controller • thermostat even if the controller • thermostat is not linked to a Wi-Fi network. 1 - On the controller • thermostat, access SETTINGS > ZIGBEE SETUP > ADD A NEW THERMOSTAT. The screen ADD A NEW THERMOSTAT on the controller • thermostat will display the Zigbee channel being used. 2 - On the thermostat, access menu 1 and select the channel displayed by the controller • thermostat.
CONNECTING THE THERMOSTAT TO ANOTHER ZIGBEE NETWORK If you do not have a MAESTRO controller • thermostat, but your home already has a Zigbee network, you can connect the thermostat to this network. However, you won’t be able to use the MAESTRO app or benefit from all the MAESTRO system advantages. 1 - Set the thermostat control device to Zigbee connection mode. 2 - From the thermostat, access menu 1 and select the channel indicated by the control device.
DISPLAYING AMBIENT RELATIVE HUMIDITY OR OUTDOOR TEMPERATURE In addition to room temperature, the home screen displays the percentage of ambient relative humidity by default. On the home screen, touch the button to switch the ambient humidity display to outdoor temperature. NOTE : NOTE: Outdoor temperature display is possible only if your thermostat is connected to a MAESTRO controller • thermostat linked by Wi-Fi to an internet connection and you have geofenced your home using the MAESTRO app.
ACTIVATING OR DEACTIVATING OPEN WINDOW DETECTION By default, the thermostat will detect if a window is open in the room where it is located, and the thermostat automatically adjusts the set temperature to 45 °F to avoid heating the room unnecessarily. 1 - Access menu 5. 2 - Use the 3 - Touch the and buttons to activate (ON) or deactivate (OFF) open window detection. button to confirm the selection.
THE 360° COMFORT EXPERIENCE MAKE THE MOST OF YOUR MAESTRO The MAESTRO thermostat can function on its own, but it offers more options when used with MAESTRO controller • thermostat and the MAESTRO app. By using the complete MAESTRO system, you’ll benefit from maximum comfort, flexibility and energy savings. For more information on the MAESTRO system, visit www.stelpro.com/en-US/maestro.
THERMOSTAT TROUBLESHOOTING COMMON PROBLEMS The following table lists the most common problems and alerts that you may encounter with your thermostat. If your problem does not appear in this table or if the suggested solutions do not solve the problem, visit the support section on our website (www.stelpro.com/en-US/support-maestro) or contact our customer service team at: 1-866-628-5776 450-441-6988 s.technique@stelpro.com PROBLEM / ALERT SOLUTION blinking The heating system is overheating.
The thermostat does not light up after being installed. Make sure the wires of the thermostat are properly connected and that the caps are tightened (see instructions in Installing the MAESTRO thermostat on page 6). Make sure the circuit breaker associated with the heating system in the electrical box is OFF. If the heating system has a switch, make sure it is ON. The thermostat is not displaying the correct ambient temperature. Make sure there are no drafts or sources of heat near the thermostat.
THERMOSTAT DEFAULT VALUES - 24 - Setpoint temperature 70 °F Additional display Ambient humidity Zigbee connection Disconnected Temperature format Degrees Fahrenheit Heat mode Baseboard Locking Keyboard unlocked Open window detection Activated Proximity sensor Activated
TECHNICAL SPECIFICATIONS ELECTRICAL DATA Supply voltage 120/240 VAC, 50/60 Hz Minimum load Resistive only 150 W to 120 VAC, 50/60 Hz 260 W to 208 VAC, 50/60 Hz 300 W to 240 VAC, 50/60 Hz Maximum load Resistive only 2000 W to 120 VAC, 50/60 Hz 3400 W to 208 VAC, 50/60 Hz 4000 W to 240 VAC, 50/60 Hz TEMPERATURE DISPLAY Actual measured temperature 32 °F to 122 °F Temperature display increments 1 °F Temperature setpoint 41 °F to 86 °F Temperature setpoint increments 1 °F Zigbee IEEE 802.15.
WARRANTY This unit has a 3-year warranty. If at any time during this period the unit fails to function properly, you must return it to the place of purchase with the invoice copy, or simply contact our customer service department (with an invoice copy in hand). In order for the warranty to be valid, the unit must have been installed and used according to instructions. If the installer or the user modifies the unit, he/she will be held responsible for any damage resulting from this modification.
