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I'm tring to make a prog. to 4 pumps using VLX controller . I finished the prog. but when I tried to change any of BVs present value and check the DDC life function the BV never comes to true value...

Great effort ,great clarification ,thanks a lot
And still wating an example you can upload it to that site : mediafire

Many thanks, I think I got many things clear
now. But still, I'm confused in what the SR is used for in that case. I'd say
"and Please correct" It would be used to calculate Air flow for Each
VAV...

Thanks a lot for your interest.I'm not working in a specific project I'm just tring to learn so any explained example will be enough.lets say 20 VAVs

Hi everyone
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I need to know how to make and use a subroutine DDC in visuallogic with example .
really appreciating your help.