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Ambient temperature

The temperature is displayed either in °C with a 0.5 °C resolution or in °F with a 1 °F resolution. 

The screen will display LO if the temperature drops below 0 °C (32 °F) and will display HI if the 

temperature rises above 50 °C (122 °F).

Temperature setpoints

The setpoint may be edited by the user using the UP and DOWN buttons located on the thermostat. 

The setpoint may also be modified through the ZigBee network.
The minimum setpoint is 5 °C (41 °F) and the maximum setpoint is 30 °C (86 °F).

NOTE:

 if the setpoint is set at 7 °C (45 °F) or below, the frost warning icon   will be displayed to 

warn the user that water pipes might be subject to freezing.

Heating power indicator

Whenever the thermostat is actively heating the room, the heating status graph will display the 

heating percentage.

No bar: 0%

1 bar: 1-25%

2 bars: 26-50%

3 bars: 51-75%

4 bars: 76-100%

Thermostat mode

The thermostat has three modes: Comfort, Eco and Off. The first two modes have their own 

preestablished setpoint. Comfort: 21 °C (70 °F), Eco (

): 17 °C (63 °F).

The user may change the setpoint to any value in the range described in the setpoint section.
When the Eco mode is active, the Eco icon (

) is displayed on the LCD. When the Off mode 

is active, the frost warning icon   is displayed on the LCD and the setpoint is replaced by ( -- ).
The thermostat mode may be changed locally on the thermostat by pressing the UP and DOWN 

buttons simultaneously for less than 3 seconds while on the main screen. The Eco setpoint is local 

to the thermostat and cannot be edited through the ZigBee network.
If a setpoint change is sent through the ZigBee network, the thermostat mode will automatically 

switch to Comfort mode.

Содержание STZB402 Plus

Страница 1: ... consult this guide online please visit our website at www stelpro com 042D07_INSSTZB402 0616 USER S GUIDE S Y S T È M E Q U A L I T É C ERTIFIÉ REGISTERED Q U A L I T Y S Y S T E M STZB402 ELECTRONIC THERMOSTAT FOR THE SMART HOME ...

Страница 2: ...ct this product to a supply source other than 120 VAC or 240 VAC and do not exceed the load limits specified Protect the heating system with the appropriate circuit breaker or fuse You must regularly clean dirt accumulations on the thermostat Do NOT use fluid to clean thermostat air vent Do not install thermostat in a wet place However installing it in insulated walls is allowed NOTE When a part o...

Страница 3: ...opper wires Selection of the thermostat location The thermostat must be mounted to a connection box on a wall facing the heating unit at around 1 5 m 5 feet above the floor level on a section of the wall exempt from pipes or air ducts Do not install the thermostat in a location where temperature measurements could be altered For example close to a window on an external wall or close to a door lead...

Страница 4: ...the previous thermostat 3 Ensure that the air vents of the Ki thermostat are clean and clear of any obstruction 4 Using a screwdriver loosen the screw retaining the mounting base of the thermostat do not completely remove the screw Then remove the mounting base at the back of the thermostat by tilting it downward then towards you 5 Align and secure the mounting base to the connection box using the...

Страница 5: ... connect them using the solderless connectors supplied When making the connection with aluminum wire make sure that you are using connectors identified CO ALR Please note that the thermostat wires do not have polarity Therefore the way they are connected is not important 2 WIRE INSTALLATION 4 WIRE INSTALLATION ...

Страница 6: ...cated on the top of the thermostat with those on the mounting base and secure the thermostat to the mounting base Note that you can also position the thermostat on the left or the right side of the junction box see below Then tighten the screw at the bottom of the unit 9 Turn the power on ALIGNMENT ...

Страница 7: ...0616 7 Ambient temperature Heating status Thermostat mode Advanced settings Set point temperature OR outdoor temperature requires external sensor over ZigBee Fan mode Lock mode Frost warning ZigBee connectivity OPERATION ...

Страница 8: ... heating the room the heating status graph will display the heating percentage No bar 0 1 bar 1 25 2 bars 26 50 3 bars 51 75 4 bars 76 100 Thermostat mode The thermostat has three modes Comfort Eco and Off The first two modes have their own preestablished setpoint Comfort 21 C 70 F Eco 17 C 63 F The user may change the setpoint to any value in the range described in the setpoint section When the E...

Страница 9: ...onnectivity icon may blink if there is an issue with the ZigBee radio circuit Advanced settings There are 7 advanced settings menus on the thermostat The advanced settings are the following 1 ZigBee menu used to associate or remove the thermostat from a ZigBee network 2 Display format used to switch the temperature format between C and F 3 Heating mode used to switch the heating mode between Baseb...

Страница 10: ... time at which point the icon will momentarily flash rapidly if a change has been made To exit the advanced settings press the UP and DOWN buttons simultaneously for 3 seconds at any time If the thermostat is left idle it will revert back to the main screen after 30 seconds ZigBee network association Association Make sure the ZigBee controller is in pairing mode refer to your ZigBee controller ins...

Страница 11: ...e network To reset the thermostat to its default settings Enter the advanced settings Enter the STELPRO menu menu 7 Navigate to the def screen using the UP or DOWN buttons Enter the def menu by pressing the UP and DOWN buttons for less than 3 seconds Select yes and confirm the selection by pressing the UP and DOWN buttons for less than 3 seconds The thermostat will then reset itself Power Outage I...

Страница 12: ... is above 50 C 122 F heating will be always inactive Temperature sensor is defective heating will always be inactive Call technical support Err The connection could not be established with the ZigBee network Make sure the thermostat is within range of the ZigBee controller or a ZigBee repeater and make sure the ZigBee controller is in association mode E1 Secondary temperature sensor is defective T...

Страница 13: ... turned on The display turns off a few minutes and then turns on again The thermal protection of the heating unit has opened due to overheating Check if the heating unit is in good operating condition and that clearance around the appliance is according to the manufacturer s specifications The displayed ambient temperature is incorrect Check the presence of an air stream or a heat source near the ...

Страница 14: ... resistive load 16 7 A 4000 W 240 VAC 2000 W 120 VAC Temperature display range 0 C to 50 C 32 F to 122 F Temperature display resolution 0 5 C 1 F Temperature setpoint range 5 C to 30 C 41 F to 86 F Temperature setpoint increment 0 5 C 1 F Storage temperature 50 C to 50 C 58 F to 122 F Operating temperature LCD performance might diminish below 0 C 32 F 20 C to 50 C 4 F to 122 F ...

Страница 15: ...der 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 will be held responsible for any damage resulting from this modification The warranty is limited to the factory repair or the replacement of the unit and does not cover the cost of disconnection transport and installation E mail contact stelpro com...

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