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MUA question

Discussion in 'Commercial' started by icy78, Oct 20, 2017.

  1. icy78

    icy78 New Member

    Messages:
    523
    Or the other one. Maintenance guys usually ask you about the air makeup . AMU

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    Daryl_Dixon likes this.
  2. crackertech

    crackertech assholiness *

    Messages:
    91,455
    Location:
    Fl/IN/Ga/Ms/TX/NJ/VA/NC/TN

    Nice catch
     
  3. icy78

    icy78 New Member

    Messages:
    523
    MUA= make up air
    MAU= makeup air unit
    MUAU =make up air unit

    Around here they're called make up airs. Or air make ups.

    Whatever


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    Ballvalve79 and Daryl_Dixon like this.
  4. Ballvalve79

    Ballvalve79 It's only fire what could go wrong

    Messages:
    238
    Location:
    Northwest PA
    Make up air=

    Only
    Break
    On
    Really
    Cold
    Windy
    Days(or nights)
     
    Y7turbo, LemonWizard, knave and 5 others like this.
  5. mike1020

    mike1020 entitled millennial

    Messages:
    18,342
    Location:
    on the roof of target
    Air Exchanger
     
  6. Daryl_Dixon

    Daryl_Dixon New Member

    Messages:
    3,780
    Fresh Air Giver
     
  7. icy78

    icy78 New Member

    Messages:
    523
    FAG?
    Not been asked to work on one of those. Pretty sure I'd have to decline.

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  8. LemonWizard

    LemonWizard Blinky Lights Wizard

    Messages:
    2,145
    Location:
    Ohighyo
    Call is doors hard to open
     
  9. otto

    otto Bakery Chef

    Messages:
    19,866
    Location:
    in a van down by the river
    How about when you go to lunch and find a place to eat then have to fight the door open. You know they have the MAU off, probably negative draft on the water heater. Ya wanna say something but you know either they know it's off and don't care or they have no idea and you don't want to spend your lunch break explaining it to them.
     
  10. Jon

    Jon Team Canada

    Messages:
    7,834
    Location:
    Canada eh!
    You fix for me? I give good deal on lunch
     
    mike1020 and knave like this.
  11. mike1020

    mike1020 entitled millennial

    Messages:
    18,342
    Location:
    on the roof of target
    Dedicated Outside Air System
     
  12. mike1020

    mike1020 entitled millennial

    Messages:
    18,342
    Location:
    on the roof of target
    me no pay !
     
  13. Zman

    Zman Hanging by a Thread

    Messages:
    1,014
    Location:
    The "I know a Guy" State
    You No Fix, I spit on sandwich!:eek:
     
  14. 4x4Freak

    4x4Freak New Member

    Messages:
    889
    Location:
    Kermit, TX
    There's a place near here that you nearly get sucked into once you are able to pry the door open. Been like that for a few years that I know of.

    There's quite a few places that are always smokey or humid because the ventilation isnt setup right or they don't run the blowers in the RTUs during off cycles.

    Zach
     
  15. 4x4Freak

    4x4Freak New Member

    Messages:
    889
    Location:
    Kermit, TX
    I no eat food out of nasty kitchen

    Zach
     
  16. mike1020

    mike1020 entitled millennial

    Messages:
    18,342
    Location:
    on the roof of target
    A while back, we had a restaurant where the screens on all the returns were plugged solid due to dust from a remodel.

    The units all kept tripping on freezestat so I opened the economisers all the way open to get good airflow

    The ceilings were so high in there, they had to move some tables and get a lift in there, so it took a couple days to get back

    When I got there the doors were all blown open a couple inches, lol
     
  17. NZ All Blacks Fan

    NZ All Blacks Fan Just Another swinging Dick

    Messages:
    9,403
    Location:
    West Coast - Canada
    mua should be 80% of exhaust so I was told so your mua should be at least 80% of that 6300 so about 5000 cfm ( think that's city code here )
    the rest comes in the other openings
    the reason behind the 80% is to ensure a slight negative in the kitchen to keep the smells in the kitchen
    the rest is made up through the hvac units and the building leakage
     
    icy78 and Zman like this.
  18. Rather B Riding

    Rather B Riding Behind bars

    Messages:
    608
    The rules said we have to keep it clean here:D. :lachen: