Thermal system solar controller ZCS 4 - V3

Differential controller for 25 solar systems with one or two fields of collectors and up to two storage deposits or swimming pools conditioning. - For 25 solar systems with one or two fields of collectors and 1-2 storage deposits or swimming pools. - Control of the transfered energy; - Time programmer of the backup system with optional energy-saving mode; - Lighted display with visualization of text and graphics; - Several protection systems for the collector, the deposit and antifreeze; - Start up DT and stop DT of the circulator with adjustable values; - Storage unit with statistic and graphic analyses for constant monitoring of the system; - Special function for vacuum collectors; - Memory of errors with time and date; - Menu lock against undue programming changes; - 3 inlets for temperature sensors PT1000; - 1 PWM / 0-10V output for high efficiency circulators; - 2 output relays 230V AC; - Supplied with 3 probes PT1000 (180C).