stelpro STZB402+ ELECTRONIC THERMOSTAT FOR THE SMART HOME User Guide
USER’S GUIDE
STZB402+
ELECTRONIC THERMOSTAT FOR THE SMART HOME
For further information or to consult this guide online, please visit our website at www.stelpro.com
042D07_INSSTZB402+0622
| General | Details |
|---|---|
| Name | stelpro STZB402+ ELECTRONIC THERMOSTAT FOR THE SMART HOME User Guide |
| Make | StelPro |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.39 MB |

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Stelpro STZB402+ Manual: Questions and Answers
What is the maximum temperature setpoint for Stelpro STZB402+?
30 °C (86 °F). User Guide, p. 8
Can I edit the Eco setpoint on Stelpro STZB402+ through the ZigBee network?
No. The Eco setpoint is local to the thermostat only. However, you can change the Comfort setpoint through ZigBee, which will switch the thermostat to Comfort mode. User Guide, p. 8
How long is the Stelpro STZB402+ covered by warranty?
3 years from purchase. User Guide, p. 15
Why is my thermostat heating continuously even though it shouldn't be?
Check that the thermostat is properly connected. Refer to the installation section. User Guide, p. 13
What do the error codes mean on Stelpro STZB402+?
| Code | Meaning |
|---|---|
| LO | Temperature is below 0 °C (32 °F), heating will be always active |
| HI | Temperature 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. The thermostat will still control the temperature but performance may be diminished. Consider replacing the thermostat. |
How do I restore the Stelpro STZB402+ to factory settings?
Enter the advanced settings, navigate to menu 7, find the (def) screen, and confirm the reset.
- Press the UP and DOWN buttons simultaneously for 3 seconds to enter advanced settings
- Navigate to menu 7 (°STELPRO menu) using UP or DOWN buttons
- Navigate to the (def) screen using UP or DOWN buttons
- Press the UP and DOWN buttons for less than 3 seconds to enter the (def) menu
- Select (yes) and confirm by pressing UP and DOWN buttons for less than 3 seconds User Guide, p. 11
What locations must I avoid when installing Stelpro STZB402+?
Do not install close to windows, external walls, doors leading outside, direct sunlight, lamps, fireplaces, heat sources, air outlets, concealed ducts, chimneys, areas with poor air flow or frequent drafts. User Guide, p. 3



























