Click to expand Tap to zoom Heating circuit module IM110 by M-TEC SKU 670012 Product information "Heating circuit module IM110" Control expansion with an additional 3 heating circuits(2 mixed, 1 unmixed), solar system control,Buffer boiler changeover, etc.incl. 3 pc. temperature sensors PT-1000 3m SILConnected via the internal bus system (4-pin shielded cable) Accessories