TECH

TECH Controllers is a Polish manufacturer of electronic heating controls. In this category you will find TECH controls designed for controlling entire heating systems with mixing circuits – in other words, for more complex installations where a boiler, several pumps, mixing valves and a domestic hot water (DHW) circuit all need to be controlled at the same time.

The controls offer several operating modes – constant temperature, weather-compensated control based on outdoor temperature, valve temperature correction according to room temperature, and a weekly heating programme. Depending on the number of circuits served, you can choose a model ranging from the simpler EU-i-1 (one circuit) up to the EU-i-3 PLUS OT (three circuits including DHW and a solar system).

The system can additionally be extended with the EU-i-1m add-on module for another mixing circuit, or you can choose the simpler URJ-02 variant for smaller installations with two pumps.

Frequently asked questions

• Who are these controls intended for? For owners of houses with a more complex heating system – several circuits, underfloor heating and radiators at the same time, or a boiler with DHW and a solar system.
• Which model do I need for 2 mixing circuits? The EU-i-2 PLUS OT control unit is suitable, or the EU-i-1 fitted with the additional EU-i-1m module.
• Do the controls support OpenTherm communication? Yes, models marked "OT" (e.g. EU-i-2 PLUS OT) support communication with the boiler via the OpenTherm protocol.
• Can the system be linked with zone control of the underfloor heating? Yes, in larger buildings zone controls are connected to the voltage-free outputs of the main control unit (terminals for a room thermostat).