Dual-circuit valve controller R3V-422

Product detailed description

Features of the R3V-422 controller:

Based on the connected sensors (max. 8), the controller allows control of three-way/four-way valves and pumps, switching of the boiler, and temperature regulation according to the selected function.
It is used, for example, in the following systems
- single and dual circuit systems (radiators, underfloor heating)
-  for charging and discharging the storage tank
- for solid fuel boilers (regulation with regard to return temperature)
- where the heat source does not allow regulation according to outdoor temperature (weather-compensated control) .

Types of regulation:

• Regulation according to room temperature with a temperature sensor (PI control)
• Regulation according to the temperature behind the valve with regard to the room thermostat
• Weather-compensated control adjusted according to room temperature with a temperature sensor
• Weather-compensated control according to outdoor temperature with regard to the room thermostat
• Regulation according to return temperature with a temperature sensor
• Regulation according to return temperature with regard to the room thermostat
• Regulation according to return temperature, charging of the storage tank (AKU) with regard to  boiler temperature (flue gas sensor) and room temperature with the option of external heating (ExD)
• Regulation according to return temperature and charging of the storage tank (AKU) by hysteresis  with the option of external heating (ExD)
• Service mode
• Summer mode

Advantages of R3V-422:

• 7 weekly programs with 6 temperature changes per day
• language selection (CZ/EN)
• mode selection AUTO/MANU/OFF
• monitoring of maximum boiler temperature
• monitoring of maximum storage tank temperature
• valve adaptation after switching on the controller
• clock backup runtime after power failure is more than 4 hours
• selection of maximum valve step
• anti-freeze protection
• automatic protection against limescale
• short-term temperature change
• information on temperatures at the sensors, calculated valve temperature, and an approximate valve position value in % for each connected circuit
• power supply 5 V/DC, 500 mA (AD05-DIN power supply not included in the package)
• possibility to connect up to 8 temperature sensors (the package includes KO, VT, M1, V1, Z1 sensors; additional ones can be purchased at www.elektrobock.sk)
• possibility to connect a thermostat for remote control
• max. output load (I max) is 5 A