FROM THE VIDEO COMMENTS ... Nice video as always . These BMS type systems can often be a case of Peter robbing Paul, especially for retro fit. I have recently looked at this for the two facilities I manage . On purely energy saving the cost of upgrade would not pay its self back for 15 and 17 years . How ever training our cleaners to turn off specific machines and appliances if left on has led to a 25% saving after day one , Now to train the rest of the workforce. !!!