Device identification
Device type: Smart thermostat
Device model: ST802-B
Main features
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Underfloor heating valve control
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Fan coil control
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Ventilation fan control - AC and DC fans supported, including 10 V DC fan control via an analog output
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Dry contact relay to signal heat sources like gas burners, pellet burners, etc.
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Supports electric underfloor heating - The thermostat can signal a connected Shelly relay to switch the heating on or off automatically based on temperature settings
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RS485/ Modbus control
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Anti-freeze function - prevents damage to the heating pipes
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Humidity sensor integrated
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Temperature & humidity offsets
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Wi-Fi and Bluetooth connectivity
Connectivity
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Wi-Fi
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Bluetooth
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RS485 / Modbus
User interface
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Room relative humidity.
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ON/OFF button, hold on the button until the Wi-Fi icon is displayed.
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Room temperature.
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Switch fan speed.
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Current fan speed.
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Mode selection button.
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Up and Down button for adjust set point.
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The Wi-Fi signal will be displayed after connected to internet.
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Show the current setting mode.
Specifications
| Specification | Value |
|---|---|
| Device type | Smart thermostat |
| Model | ST802-B |
| Size (H x W x L) | 86.8 x 86.8 x 14 mm (see Fig. 1: Device dimensions for more details) |
| Input voltage | 90 - 240 VAC, 50/60 Hz |
| Load current | 2A resistive load, 1A inductive load |
| Temperature control range | +5 to +35°C |
| Working environment | -10 to +55°C |
| Protection level | IP20 |
Wiring diagram
Legend:
A1/B1: RS485
A2/B2: RS485
C1/C2: Digital output
H: High speed
M: Medium speed
Lo: Low speed
Valve (NO/NC): Fan coil valve
FL: Floor heating valve
L: Live
N: Neutral
Installation
Shelly Smart Control
Adding the device to Shelly Smart Control
Shelly web user interface
Disposal and recycling
Do not dispose of the product in household waste. Recycle the product to prevent environmental and health damage and to promote resource conservation. Dispose of the product at an appropriate waste collection point at your own responsibility.
Resellers, from which the Device was purchased, are required to accept Waste Electrical and Electronic Equipment (WEEE) free of charge for proper disposal.
Some electronic products may store personal data. The user is responsible for deleting this data before disposing of the Device. For deletion, reset the device to its factory settings.
Printed user guide
ST 802 user manual EN v2.0.pdf
ST802-B Bedienungsanleitung.pdf
ST802-B Ръководство за потребителя.pdf
Compliance
ST802-B multilingual EU declaration of conformity.pdf
Manufacturer
LinkedGo Technology Co.,Ltd,
Address: No. 3, Tianyuan Road, Dagang Town, Nansha District, Guangdong Province, China
E-mail: info@linked-go.com
Importer
Shelly Europe Ltd.
Address: 51 Cherni Vrah Blvd., bldg. 3, fl. 2-3, Sofia 1407, Bulgaria,
Email: support@shelly.cloud
Website: https://www.shelly.com
