#HVAC #Eberle #Instat2 #ControlsEngineering #BuildingAutomation
If you have stumbled upon this article, you are likely holding a white-and-gray Eberle Instat 2 room thermostat or staring at a blank screen wondering how to program it. You searched for the — and you are not alone. While Eberle (now part of the Friedrich Gruppe) has produced some of the most reliable aftermarket heating controls in Europe, the original documentation is often lost, buried in a drawer, or written in dense technical German. eberle instat 2 manual
: Must be mounted with ventilation slots at the top and bottom to function correctly. Thermostat with digital clock - INSTAT 2 - Eliwell France : Must be mounted with ventilation slots at
| Terminal | Function | Typical Use | |----------|----------|--------------| | 1 (or COM) | Common (relay) | Live feed to thermostat | | 2 (or NO) | Normally open | Switched live to boiler | | 3 (or NC) | Normally closed | Not used for heating | | L | Live (230V) | Only for powered models | | N | Neutral | Only for powered models | the original documentation is often lost
: Follows a pre-programmed schedule with multiple time/temperature sectors.