TECH EU-i-1 mixing valve controller 3/4-way - heating curve & return protection

TECH EU-i-1 Mixing Valve Controller 3/4-Way – Heating Curve & Backflow protection

Product description

The TECH EU-i-1 mixing valve controller controls a 3- or 4-way mixing valve including Valve pump and reliably maintains the desired flow temperature at the valve outlet. It supports efficient system operation. Weather-compensated control (heating curve), Weekly program as well as the collaboration with Room thermostats (RS communication or two-point). Additionally, the control system protects the heat generator by Backflow protection (against excessively cold return temperatures) and optional boiler protection (Overheating protection).

Highlights

• For 3-/4-way mixer with continuous valve control
• Weather-controlled (Heating curve) + Weekly program
• Return temperature protection for boiler protection
• Expandable: up to 3 mixing valves via additional modules
• LCD display, Sensor package, wall mounting

Areas of application

• Suitable for
  • Heating systems in single-family/multi-family houses,
  • Workshop,
  • Halls with mixed heating circuits
  • Systems with mixers (radiators/underfloor heating) and a need for Backflow protection
  • Installations with Fixed value, Weather management or influence of room temperature
• Not suitable for
  • Systems without a 3- or 4-way mixing valve
  • Locations where the ambient temperature is outside the permissible range (e.g., freezing temperatures)

Technical data

• • Supply: 230 V ±10%/50 Hz (mains operation)
  • Power consumption: max. 4 W (very low power consumption)
  • Initial load: 0.5 A per output (for valve actuator/pump according to design)
  • Measurement accuracy: ±1 °C (temperature measurement)
  • Sensor area: -30 to +99 °C (temperature resistance of the sensors)
  • Vicinity: 5 to 50 °C (permissible operating range)
  • Backup: 1.6 A (device protection)
  • Dimensions: 110 × 163 × 57 mm (compact, wall-mounted)

Scope of delivery

• EU-i-1 control unit in wall housing with LCD
• Temperature sensor: Boiler/ZH, valve, Return, Outdoor sensor
• User manual
  (Note: Internet/GSM modules are optional accessories.)

Conclusion

The EU-i-1 is a practical solution for B2C homeowners and B2B trade professionals: precise mixing valve control, weather and weekly control as well as backflow protection in a compact, expandable device.