Credits: #hvac #ddc Photos and illustrations used in the video belong to their respective owners. This video explains the basic concept of Direct Digital Controller used for HVAC controls.
sir if have two DDC panel in one building. Both is standalone..One located on gf and one on 1st floor..initial sequence of operation is that GF DDC will control and monitor all exhaust fans ,FCU, chiller and doas unit and 1f DDC will monitor and control 1f hvac equip. (FCU and EF) . Now they wanted to monitor and control all the hvac equipment from GF but maintaining 1F DDC functionality. My question is how can I approach this changes in requirements..Will it be like as master slave architecture? How can two standalone DDC communicate with each other.?
meaning analog output yung mga sensor, kaso sir sa hmi naka red lahat ng sensor ahu lang ang gagana pero accu kailangan pang e force mode continue na lang, ano suggestion nyo sir, nabasa kasi ng tubig
Sir dto ako hirap n hirap sa ddc .nasa oil and gas ako nw dto sa oman..dating saudi pero itong work ko nw gumagamit ng ddc .lagi my problema sa change over.ano pd ko gawin dko din makita san banda ung control wire galing sa relay n ng papaandar ng unit
