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  1. Replies
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    U.V. lighting

    this is an interesting subject. Because you can talk to any number of people and some say oh yes, the lights work. Others, are very skeptical. As far as mold and mildew, and for germicial reasons I...
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    ultra violet lighting

    We were sold U.V. lights from a company called U.V. Resources. I have installed 14 thus far on our air handling units. Has anyone ever used this company before? They seem pretty good, but I am not...
  3. Thread: make up air

    by thewoodman
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    1,571

    ok, makes sense- replace conditioned air with the...

    ok, makes sense- replace conditioned air with the similar conditions. And I have looked at the chart, have several on my desk. We were looking at it, but can't understand why the temp. inside the...
  4. Thread: make up air

    by thewoodman
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    1,571

    nyrb- thanks for your reply, I just discussed...

    nyrb- thanks for your reply, I just discussed this very option with my boss. If we have those fan coils, why do we need to cool the make up air?
  5. Thread: make up air

    by thewoodman
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    1,571

    make up aire

    oh yes, thanks to all of you for your input. I often read the post on here and am impressed with all of the professional and intellegent responses people give. And if I am not clear enough on...
  6. Thread: make up air

    by thewoodman
    Replies
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    1,571

    make up air

    Yes I did go to the unit. And I am fairly new at this job site. I believe they have things out of balance. This unit only has preheat, it does not have any reheat. The unit is supplying air to fan...
  7. Thread: make up air

    by thewoodman
    Replies
    14
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    1,571

    make up air

    we have an air handler at our research building that is pulling 100 % outside air, and has no return to it. This unit is suppling make up air to fan coil units. We are having a big problem with high...
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    modification of induction unit

    has anyone ever attempted to modify an induction unit?
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    1,910

    trane induction units

    I am working in a hospital and we have a few floors in the "old building" that have trane induction units installed in the ceilings in patient rooms. Problem is the primary air is coming from a 4...
  10. Thread: thermoforma

    by thewoodman
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    1,548

    thanks...for the advice. I did contact...

    thanks...for the advice. I did contact thermoforma.. got parts on the way... this one I think I will be able to handle.. We have some low temp freezers out here that are 70 to 80 minus...celcius....
  11. Thread: thermoforma

    by thewoodman
    Replies
    8
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    1,548

    thermoforma

    I just started work in plant maintenance at a hospital. I repaired a display case hussmann refrigerator...and now they sent me to work on a laboratory refrigerator...it has pre-condenors??? and...
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    thanks...so the five wires 1-1 2-2 3-3 4-4 5-5...

    thanks...so the five wires 1-1 2-2 3-3 4-4 5-5 will work..on other stats then?
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    I just started a new job, they have a trane rtu...

    I just started a new job, they have a trane rtu with the ucb. The unit is not running. The guy I replaced had a t-stat hooked up but it was for a 24volt. He had replaced the original stat which was a...
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    well this really wasn't my baby to work on. I...

    well this really wasn't my baby to work on. I suggested they put a new condensor in and match it with new coil. WE had a spare in storage. Just to get us out of a jam. Way behind. These units are 2...
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    ok doc.. I see your point.. when you pump down...

    ok doc.. I see your point.. when you pump down the high side gauge will follow the suction line gauge because,well their is no refrigerant left in the lines and down it goes. But I am a little...
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    screens could get dirty then... boss says you...

    screens could get dirty then...
    boss says you can disconnect the fan motor and run the ac..then watch the cap tubes. If one begins to frost before the others it is restricted...does this sound true?
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    well, my boss says since it has a cap tube I...

    well, my boss says since it has a cap tube I won't get much pressure coming out. He says that blowing nit through doesn't prove it is restricted because it is a cap tube. But I think he is wrong. So...
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    hiltontech, good luck

    hiltontech, good luck
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    this is only a suggestion, but I have been...

    this is only a suggestion, but I have been scratching my head over the same thing for some customers. I finally broke the code. Problem exist especially in the afternoon evening hours hottest part of...
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    hello gentlemen, this past friday I was on a no...

    hello gentlemen, this past friday I was on a no ac call, head psi was 350 and rising, suction was 75. This is a 2 ton, with a slant coil, at an apartment complex. Capillary tube. The unit will not...
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    thank you smokin68, this is what I come up with.....

    thank you smokin68, this is what I come up with.. our tank says 47.7, tare wieght 23....in which case you take 47.7 x 80 % = 38.16 then ADD 23 and you get 61.16 pounds. This is the maximum allowable...
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    ok..I see the chart on page 16,, but above the...

    ok..I see the chart on page 16,, but above the chart it says according to ari.org. When you go there and use the formula they give it comes out different. What am I doing wrong?? Using their formula...
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    beenthere W.C.x.8 plus T.W. = max. allowable.....

    beenthere
    W.C.x.8 plus T.W. = max. allowable..
    T.W. equals the weight of the container empty. Tare Weight. We don't care about the wieght of the cylinder itself. We are actually concerned about the...
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    OH YEAH, a past thread from the 18th said that if...

    OH YEAH, a past thread from the 18th said that if you have a 30# cylinder and a tare weight 16.3 and the overall weight is 40 to stop..you have 24 #s in the tank and that is the limit. But WHOA,,...
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    ok, when figuring the weight capacity of your...

    ok, when figuring the weight capacity of your recovery cylinder to know the maximum it will hold the books say it is stamped on the tank. Ok. I went to work and got our tank out and what is stamped...
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