Dual-circuit valve controller R3V-421

Product detailed description

Features of the R3V-421 controller:

NEW VERSION 10.03 (ON SALE FROM 1.12.2014)

IMPROVED VERSION IN TERMS OF USER SETTINGS.

Based on the connected sensors (max. 8), the controller can operate three-way/four-way valves, pumps, switch the boiler and regulate the temperature according to the selected function.

It can be used, for example, in the following systems
- single and multi-circuit systems (radiators, underfloor heating)
- for discharging the storage tank
- for solid fuel boilers (control with regard to the return temperature)
- where the heat source does not allow control according to outdoor temperature (weather-compensated control).

Types of control:

• Control according to room temperature with a temperature sensor (PI control)
• Control according to temperature behind the valve with regard to the room thermostat
• Weather-compensated control with correction according to room temperature with a temperature sensor
• Weather-compensated control according to outdoor temperature with regard to the room thermostat
• Control according to return temperature with a temperature sensor
• Control according to return temperature with regard to the room thermostat
• Service mode
• Summer mode

Advantages of the R3V-421:

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