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Type: Posts; User: bennyk

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  1. Replies
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    Thanks Thats exactly what I wanted to do......

    Thanks
    Thats exactly what I wanted to do... Look at the my contractor comments which I am still struggling to understand.
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    878

    Thanks can you eleborate more on it?

    Thanks can you eleborate more on it?
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    878

    I mean keeping OA damper 100% open till 19 degree...

    I mean keeping OA damper 100% open till 19 degree OAT while the first compressor that particular floor AHU kicks in at 15.4 degree C
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    OA strategy if compressor trips off on LP

    The preview of the building is it is based on condernser system with AHU on each floor.

    I got a comment from contractor as follows;
    ''I am having to stop the O/A earlier so that I can have...
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    7,924

    Gareth, Thanks for the insight . Would be...

    Gareth,

    Thanks for the insight .
    Would be glad if I could get some brochures on the units.

    Thanks
    Benny
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    1,392

    WHat does D means ? Help me out

    WHat does D means ? Help me out
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    You mean temp up to 20 -23 and Enthalpy up to...

    You mean temp up to 20 -23 and Enthalpy up to 60-65 isnt it?
    Would not temp 20-23 brings a lot warm air in ?
    How about keeping OAT same but increase the cut off for Enthalpy ?
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    Setpoints for Economy cycle

    Please comment on the following comments-""Economy cycle program in BMS. OA temp has to be between 16 and 20 degrees and OA enthalpy has to be between 35 and 50 for economy cycle to operate. The ...
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    I am more with Adrian. It has pnumetic sensors...

    I am more with Adrian. It has pnumetic sensors controlled via DDC and is not responding to OAT and RH. So do you guys think this is pure repair and maintence issue rather than a control glitch.
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    Outside Air strategy

    How would outside air strategy be different on Pnumetic control system than on the other system. Will anyone could please advise me
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    Induction system HVAC

    Could anyone explain me what is induction System HVAC is and would there be any difference on control strategies then other system.Please
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    Control strategy

    Could anyone advise me on any existing forum where HVAC control strategy would be discussed for energy conservation
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    398

    Cycling Exhaust fan

    I read this on HVAC book focused on Energy conservation - " When the out door damper is in the minimum position, The exhaust air fan could be turned off . As return fan must operate constantly, the...
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    Turning Exhaust Fan Off

    I read this on HVAC book focused on Energy conservation - " When the out door damper is in the minimum position, The exhaust air fan could be turned off . As return fan must operate constantly, the...
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    Thanks exactly what i m saying . Attached file...

    Thanks exactly what i m saying . Attached file the daily profile of the load . I checked against other day temp and RH as well .
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    Well , this guy has two set chiller including Low...

    Well , this guy has two set chiller including Low load chiller. What we do is try to analyse operation with help of 24* 7 data loggers. I found out the load on the would be chiller to be fluctuating...
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    Outside AIr on Chiller

    What else could be the determining factor for chiller to kick on except Outside Air.? Any suggestions?
  18. Thread: Zone VS Central

    by bennyk
    Replies
    7
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    650

    What Parameter would it look. If it is function...

    What Parameter would it look. If it is function of temperature on the floors , cant it be possible that equipment left ON would call cooling?. Or will it be time function?
  19. Thread: Zone VS Central

    by bennyk
    Replies
    7
    Views
    650

    Thanks. That could answer 50% of my question.

    Thanks. That could answer 50% of my question.
  20. Thread: Zone VS Central

    by bennyk
    Replies
    7
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    650

    One of the reason may be I am still lacking...

    One of the reason may be I am still lacking detail on the building. As the details I have received, It got 16 compressors at mid level plant room which supplies to 16 VAV each floor. But suprisingly...
  21. Thread: Zone VS Central

    by bennyk
    Replies
    7
    Views
    650

    Thanks . I would for sure

    Thanks . I would for sure
  22. Thread: Zone VS Central

    by bennyk
    Replies
    7
    Views
    650

    Zone VS Central

    I work for Energy management company and a rookie looking forward to head on this industry.

    The building has VAV each floor. But for AH AC request on 1 floor , It takes on 5 floors at a time. It...
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    Continous Heating and Cooling

    The floor is designed in such a way that it would ask for heating and cooling at same time ( Solar heat on one side ). It is double ducted and VAV system. Could anyone please suggest me on this?
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