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  1. Replies
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    on older units we have rhino lined the inside of...

    on older units we have rhino lined the inside of the towers after patching the soft spots. It buys them a couple more years and is way cheaper then replacement. Gives them time to plan the...
  2. first, This isn't a new house and you didnt...

    first,

    This isn't a new house and you didnt pay / contract to have it installed, and based on the patches who is to say that the former homeowners didnt mess with the duct themselves?

    ...
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    it could also be a head preasure controler...

    it could also be a head preasure controler cycling the fan off to maintain head preasure. If it is that old I wonder how the strip heaters are wired in? The outdoor unit needs to lock out when the...
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    3,079

    your letting it go, or you realize you are making...

    your letting it go, or you realize you are making a fool of yourself on the first week you have been here? Also equipment platforms are 18" high in garages in the america's, not 32"

    matt
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    you cannot use pvc. It does not carry a 25/50...

    you cannot use pvc. It does not carry a 25/50 rating and is not allowed in open plenum space for drain lines either. The underground pipe we use such as k-27 and pvc coated spiral has a "UL" listing...
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    3,079

    could you please, I am in need of a refresher...

    could you please, I am in need of a refresher course from the almighty frosty.

    matt
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    3,079

    so, in your part of the country, your gas valve...

    so, in your part of the country, your gas valve (pilot and main same time) turn on first, then the hot surface ignitor, then the combustion blower motor, is that how "frosty's unit" works?


    matt
  8. Replies
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    3,079

    ok, just as a reminder the gas valve can only...

    ok, just as a reminder the gas valve can only come on "after" the combustion motor is "working" and proves it to the preasure switch. Let me guess you will make up some story about a jumped out,...
  9. Replies
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    the air would be so dilluted by the combustion...

    the air would be so dilluted by the combustion air that it wouldnt even matter, even after seven seconds, plus at the cfm rate the air is being discharged (positive side). The only way you could...
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    is this for a liebert? matt

    is this for a liebert?

    matt
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    you must not understand the question!! If you...

    you must not understand the question!! If you label it wring in the network, it may only run during ocupied or not run at the correct times when used in conjunction with an exhaust system.

    Do...
  12. Replies
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    2,861

    The unit you are descibing is a "make up air...

    The unit you are descibing is a "make up air unit", period!!!! A unit that is bringing in 100% outside air (for oa requiremnts based on ocupancy and dumping into each r/a plenum or onto each floor)...
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    Wow, did you charge them to put in a Liebert, and...

    Wow, did you charge them to put in a Liebert, and then put in a Goodman? Now you realize why they cost what they cost. They would have had all the proper low ambient controls, humidification,...
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    1,957

    If I were you, first I would disreguard half of...

    If I were you, first I would disreguard half of these posts, they have no clue what your doing.

    Here is what I have done on dyno rooms before and some were engineered and some were design build....
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    You are way off on your tonnage, you have a hood...

    You are way off on your tonnage, you have a hood exhaust system going in and what are you doing about Make Up Air? You will have no ceiling so all of you air will be at the top of the ceiling. I'm...
  16. Thread: Duct work

    by Mstrav
    Replies
    7
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    1,065

    matt

    matt
  17. Replies
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    3,121

    I would hope anybody that is commercial knows...

    I would hope anybody that is commercial knows nailer. There is also Titus, shoemaker, J&J, Hart & Cooley etc...


    There are specific reigister / grill / difuser types for various air flow...
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    when the terminals blow like that, I...

    when the terminals blow like that, I automatically condem. Did the unit loose its charge as well? You know the copper lines are done for and any repair would be a waste of money and a service...
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    Are you going to "wet" connect your joints? ...

    Are you going to "wet" connect your joints?


    matt
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    3rd year!!! matt

    3rd year!!!

    matt
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    1,447

    If this wall is fire rated is it 1 or 2 hour? Is...

    If this wall is fire rated is it 1 or 2 hour? Is it a hallway or a corridor? Do the dampers have to be fire smoke combos or just curtain/ radiant type? what is going to control them? The wall...
  22. the only thing I do with ductboard is tear it...

    the only thing I do with ductboard is tear it out. I do almost 100% commercial now, but have done track in the past for companys doing several thousand houses per year, and we used no dampers....
  23. he doesnt say what part of the country he's in,...

    he doesnt say what part of the country he's in, but I would still say majority have none. Some regions it may be standard. (the register doenst count as a damper, refering to in line at the branch)....
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    my house in boise, 2755 sq ft, 2-story with a...

    my house in boise, 2755 sq ft, 2-story with a 4-ton. Variable speed with 2 -stage (5-ton drive set at 350 cfm). Winter temp 0 and summer high 108. Strugles about three weeks a year upstairs and runs...
  25. Just so you know, that hole you cut in the...

    Just so you know, that hole you cut in the sheetrock just breached the fire rated seperation from your garage to your house (1 hour rating). You would have better luck callling a company out to take...
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