Master V3 plus open thermal heating control control EU-i-3 plus
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Master
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Master V3 plus open thermal heating control control EU-i-3 plus
Master V.3 PLUS/EU-i-3 PLUS Open Therm heating control for 3 heating circuits mixed and unmixed
The PLUS version with extended functions (see below) The new eModule allows full access to all setting parameters
A modern and energy-efficient house requires several alternative heat sources. However, to benefit from real savings
A unified system for their management is required. The control units for heating systems from MASTER
enable powerful and efficient control of a system with multiple heat sources (e.g. solar collectors and central heating boiler).
This integration reduces energy consumption. The use of control units in the system facilitates
Operation of all devices, saves time and money and ensures comprehensive thermal comfort.
The latest version now also supports OpenTherm (OT)
OpenTherm (OT for short) is a protocol developed for controlling central heating systems using room thermostats. OpenTherm uses point-to-point communication, with the thermostat typically acting as the master and the heat generator as the slave. Multiple devices can be connected to each other using multipoint-to-point communication.
OpenTherm is manufacturer-independent. A controller from manufacturer A can communicate with a heater from manufacturer B.
A digital, bidirectional data exchange takes place between the thermostat (master) and the heater (slave). Sending status reports and requesting information between the two devices is possible. The most common command, however, relates to controlling the boiler temperature. When the heater receives the setpoint temperature request, it begins to modulate (increase or decrease the heating output) to reach and maintain the setpoint temperature. The room thermostat continuously recalculates the boiler temperature to keep the room temperature at the setpoint. This leads to greater energy efficiency.
Special features:
- smooth control of three mixing valves
- Control of the hot water pump
- supports a solar system
- Return temperature protection
- Weather and weekly control
- affordable by solar-more
- two configured potential-free outputs
- two configured voltage outputs
- two configurable 0-10V outputs (PLUS VERSION)
- Solar pump output with PWM signal (PLUS VERSION)
- Cascade connection of 4 heat generators (PLUS VERSION)
- Communication of three two-point room thermostats
- Communication with a room thermostat with RS communication
- Extension of an EU-505 or EU-WIFI-RS module
- Control of two additional valves using additional modules EU-I-1-M, EU-I-1, EU-i-1 WW
- Updating the program version via a USB port
- OpenTherm (OT)
Technical data:
- Boiler temperature setting range - from 10 to 99°C
- Floor temperature setting range - from 10 to 50°C
- Hot water temperature setting range - 5 to 80°C
- Mains voltage 230V/50Hz
- Rated load of the outputs 0.5A
- Fuse 6.3A
- Temperature resistance of the sensors - from -30 to 99°C
Equipment
- LCD display
- Boiler temperature sensor
- Flow temperature sensor
- Return temperature sensor
- Solar sensor
- Outdoor sensor
- Wall mounting
- Sensors of type KTY 81-210 with a diameter of 5mm are used here