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Type: Posts; User: engineerbrian

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  1. Replies
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    Yep, the mechanical rooms are being used as...

    Yep, the mechanical rooms are being used as mixing boxes for OA. I spoke to our insulation guy and he ran the numbers and came up with 1 1/2" insulataion
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    Safeties are key for obvious reasons, but as...

    Safeties are key for obvious reasons, but as others mentioned so is a slow warm up. Dont forget, safeties need to be checked on a regular basis, not just at start up!

    Heres how i warm up a boiler...
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    Thanks, thats a good point and easy to check. ...

    Thanks, thats a good point and easy to check. For the most part the piping is in the mechanical rooms which also serve as the return air plenum. That said its generally in the low to mid 70's
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    Thats what i was thinking too. We run our chill...

    Thats what i was thinking too. We run our chill water around 45 -47 degrees and all of the piping is inside.

    I have a call in to our preffered insulation contractor, so hopefully he can shed...
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    Chill water pipe insulation

    Ok, so long story short.

    The building i take care of recently converted existing condenser water piping to chill water piping, and the fiberglass insulation was never upgraded.

    The insulation...
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    The fans are actually 3 phase too, and running...

    The fans are actually 3 phase too, and running normally.

    I guess i need to start thinking of all of the people i've pissed off lately :)
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    That crossed our mind, but if it was we cant pin...

    That crossed our mind, but if it was we cant pin point it
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    scrolls running backwards

    Ok heres one that will stump you. Well it stummped me and my HVAC buddies anyways.

    The lobby unit in our building has been running 24/7 for 3 years with no problems. Then one day out of no where...
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    its not the exact valve, but its damn close,...

    its not the exact valve, but its damn close, thanks!

    Where did you find it? I came up with goose eggs on my google searches
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    Taco triple duty valve problem

    Hey guys, this is my first post, hopefully it's in the correct area.

    I'm a building engineer in Washington DC and in my 16 years in the trade this is my first building with Taco triple duty...
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    Thanks for the welcome guys. Chris, I'm just...

    Thanks for the welcome guys.

    Chris, I'm just around the corner from you in New Market!
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    I have a question

    I have a question...just kidding i can take a hint from the bold red letters.

    I'm a DC 3rd class building engineer in Washington DC, working out of IUOE local 99. Glad to be here.
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