Device identification
Device type: Smart thermostat
Device model: ST1820-W
Main features
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Supports up to 2A resistive load or 1A inductive load.
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Dry contact relay
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Supports electric underfloor heating
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Anti-freeze function
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Humidity sensor
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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
User interface
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Knob to access parameters and set temperature.
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Press the button to turn on/off device, or to confirm the parameters.
Specifications
| Specification | Value |
|---|---|
| Product model | ST1820-W |
| Size (H x W x L) | 85.8 x 85.5 x 12 mm (for more information see Fig. 1: Device dimensions) |
| Power input voltage | 90-240 V AC, 50/60 Hz |
| Wireless protocol | Wi-Fi 802.11 b |
| Working humidity | 5 to 95% |
| Temperature measurement accuracy | ±0.5°C |
| Humidity measurement accuracy | ±5% |
| Working environment | -10°C to 55°C |
| Load current | 2 A resistive load, 1 A inductive load |
Wiring diagram
"R1" : Connected to the floor heating valve
"L" : Connected to live line of power supply
"N": Connected to the floor heating valve
"N": Connected to neutral line
"C1"/"C2" is a dry contact as a control signal for turning gas boiler or other heat source equipment on/off
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
ST1820 User and safety guide.pdf
ST1820 Ръководство за употреба.pdf
Compliance
ST1820-W 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
