SMART THERMOSTAT (Wi-Fi) ST-520/R
The ST-520/R thermostat from the “MASTER Smart Home” series is a comprehensive solution for controlling and managing heating and cooling systems, suitable for both residential and commercial spaces, with the ability to manage fan-coils. Its modern and elegant design, combined with carefully selected colors, perfectly matches any style of decor, whether in homes or professional settings.
The thermostat offers a wide range of features that fully adapt to the user's needs, ensuring optimal performance and maximum energy savings. At the same time, it provides ease and flexibility in climate control, making it the ideal choice for any modern environment.
The ST-520/R is a "smart" thermostat that offers ease of use, precise temperature control, and maximum energy savings, making it an ideal choice for both residential and commercial spaces.
- 4" Color Touchscreen: User-friendly interface available in Greek and English, allowing easy navigation and quick access to settings.
- Voice Control: Compatible with Google Assistant and Amazon Alexa, enabling temperature control via voice commands for added convenience and ease.
- Wi-Fi Connection Without Central Hub: Simplified installation without unnecessary components, offering flexibility and reduced application cost.
- Secure Connection: Supports WEP/WPA/WPA2 and IPv4 security protocols, ensuring network and data security.
- Automatic Firmware Upgrade: The device automatically updates with the latest improvements and features for optimal performance.
- Accurate Temperature and Humidity Measurement: Built-in sensors provide precise measurement and maintenance of temperature and humidity in your space. There is also the option to measure from a different reference point via a wireless receiver.
- Smart Operating Modes: The thermostat includes pre-set programs such as Economy, Away, Comfort, and Night, which can be customized to your needs for maximum economy and comfort.
- Weekly Scheduling: Ability to program the thermostat's functions for each day of the week, with personalized temperature settings to optimize consumption.
- TPI Self-Learning Algorithm: The TPI (Time Proportional & Integral) algorithm optimizes heating/cooling performance, adapting system operation to your needs for better energy efficiency.
- Frost Protection: The thermostat has a frost protection feature, ensuring safe operation of the system even at low temperatures.
- Master/Slave Function: Allows multiple thermostat installations with central control, enabling centralized management of multiple units from a single thermostat.
- Wireless Control of Heating/Cooling Systems: Fully supports wireless control of any heating and cooling system, as well as 2/4-pipe fan-coils (3 speeds, Auto, ON/OFF, 0-10V) via a smart actuator.
- Three-Level Locking: Offers a three-level locking option (touch, user settings & advanced settings), protecting settings from accidental changes or unauthorized access.
- Multi-Functional Screen with Integrated Software: Provides control over all connected devices in the “MASTER Smart Home” system on the wireless local Wi-Fi network.
Technical Specifications
| OPERATION VOLTAGE | 180 - 230V AC / 50Hz |
| MAXIMUM LOAD | 5(2) A |
| OPERATION | 4" color touchscreen |
| FUNCTION | Heating / Cooling or DHW (Domestic Hot Water) |
| SYSTEM COMPATIBILITY | Gas boilers, heat pumps, oil boilers, biofuel boilers, air conditioners, electric radiators, Fan-coil |
| TEMPERATURE SENSOR TYPE | High precision digital sensor (±0,5°C) |
| OPERATING TEMPERATURE | 5°C – 40°C |
| TEMPERATURE SETTING RANGE | Heating: 8°C to 32°C, Cooling: 16°C to 40°C |
| STORAGE TEMPERATURE | -20°C to +50°C |
| Wi-Fi FREQUENCY / POWER | 2414-2472MHz / 20dBm (max) |
| SECURITY PROTOCOL | WEP/WPA/WPA2, Protocol IPv4 |
| STANDBY POWER CONSUMPTION | ≤ 1W |
| WIRE TERMINALS | Ø1mm to Ø2,5mm |
| DIMENSIONS | 91x91x24 mm |
| MOUNTING TYPE | Wall Mounting |
Installation Instructions
• To avoid any accidents, the installation must be carried out by qualified personnel.• Incorrect installation and use may cause electric shock or fire.
• Install the product according to the electrical installation diagram.
The product complies with the requirements of the following EU Directives:
• 2014/30/ΕΕ (EMC) • 2014/35/ΕΕ (LVD) • 2014/53/ΕΕ (RED)
Draft of Electrical Installation
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