SMART RECEIVER ST-520-RV
The ST-520-RV Smart Receiver is a wireless two-zone actuator designed for managing heating and cooling systems, or heating and Domestic Hot Water (DHW), in combination with the ST-520/R Smart Thermostat. It functions as a wireless receiver, receiving commands from the ST-520/R thermostat and activating the connected systems via two independent relays.
Its flexibility allows it to adapt to various installations, as it can be used either for heating and cooling control or for heating and DHW, providing comprehensive control and automation.
The ST-520-RV is a reliable and versatile solution for installations that require intelligent thermal load management, offering energy efficiency and full automation through the ST-520/R thermostat.
Key Features
- Long-range wireless communication for a stable connection with the ST-520/R thermostat.
- Reliable operation in multi-zone systems, ideal for installations with multiple zones.
- Support for multiple thermostats in a shared setup (Master/Slave mode).
- Remote management of HVAC systems via the ST-520/R for maximum convenience.
ST-520-RV Functions
- Wireless Thermostat Receiver: Acts as an intermediary between the ST-520/R and the heating/cooling system, receiving and executing the thermostat’s commands.
- Two-Zone Management: Equipped with two independent relays, allowing it to be used for either heating and cooling, or for heating and DHW (Domestic Hot Water) in installations without cooling.
- Repeater Function: The ST-520-RV can also operate as a signal repeater, enabling the connection of thermostats located out of range to extend the wireless communication coverage.
The ST-520-RV Smart Receiver is the ideal solution for wireless heating and cooling control, offering flexibility, stable communication, and support for multi-zone systems. It is designed to work seamlessly with the ST-520/R, enabling reliable and precise remote management of HVAC systems.
Technical Specifications
| OPERATING VOLTAGE | 230V AC / 50Hz |
| TWO INDEPENDENT RELAYS | Relay 1 [Q12 - Q14]NO / Relay 2 [Q21 - Q24]NO |
| MAXIMUM RELAY CONTACT LOAD | 8(2) A |
| COMMUNICATION RANGE | Up to 100m in open space |
| COMMUNICATION FREQUENCY | 2.4GHz (ESP-NOW) |
| INPUT 1 AND INPUT 2 (SELV) | Input 1 [I16 - I17]NC / Input 2 [I26 - I27]NO |
| OPERATING TEMPERATURE RANGE | -10°C – 50°C |
| PROTECTION RATING | IP20 |
| MOUNTING | Wall-mounted |
Declaration of Conformity
We hereby declare that the radio equipment of the product ST-520-RV, manufactured by AR. TSITSIKAS & CO G.P., complies with the essential requirements and relevant provisions of the following European Union directives:2014/30/EU (EMC), 2014/35/EU (LVD), 2014/53/EU (RED). The full text of the EU Declaration of Conformity is available at the following internet address: https://www.master-electric.gr/downloads
• The technical specifications, features, and availability of the ST-520-RV (Smart Receiver) are subject to change without prior notice.
• The manufacturer reserves the right to modify the product, firmware, and the accompanying Android and iOS applications for improvement purposes, without any obligation to inform previous purchasers.
• Install the product according to the electrical installation diagram.
When the product is decommissioned, it must be disposed of in accordance with national legislation and environmental protection requirements.
Draft of Electrical Installation
