what is the difference in Kg/cm2 and mmwc?
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Im working in a shopping center, it is also hotel and office building, two towers exactly and someone is proposing a PLC control for the HVAC system, but Im thinking of a DDC control system. in this case what is the difference between PLC and DDC control?
hi this is noor in my work spot, i arranged THERMOCOUPLE in the place of RTD. (in FEED WATER tank). can i use T/C or not?
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