Search Results - HVAC-Talk: Heating, Air & Refrigeration Discussion

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  1. Replies
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    93,951

    Drove an hour to do a warranty call on a bread...

    Drove an hour to do a warranty call on a bread oven at a new Subway opening up. Get there and found a three phase unit wired up to single phase service - third power lead left unconnected. Call the...
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    3,884

    A lot of the off-the-shelf detectors won't alarm...

    A lot of the off-the-shelf detectors won't alarm until levels are high enough that people are probably already sick. It may also take several hours for it to respond, too long to use it as a...
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    2,299

    I always thought it would be a good idea to have...

    I always thought it would be a good idea to have one of those but have never pulled the trigger and bought one. Are there any you recommend?
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    2,070

    Actually, every service school I've ever been to...

    Actually, every service school I've ever been to has said larger wire can cause communication problems. Due to the skin effect, the signals tend to travel on the outside of the wire, not straight...
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    398

    The refrigerant the coils use isn't related to...

    The refrigerant the coils use isn't related to DSS, however more manufacturers are using all aluminum coils that under the right conditions have more trouble with DSS. The fact that R410a and all...
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    The cheap ones are alright for school but for...

    The cheap ones are alright for school but for anything else I always use Fluke meters. I have the 116 and 902 and they've both been going strong for years. My Fieldpiece HS36 on the other hand has...
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    2,175

    Okay, I'll bite. What rule was he in violation...

    Okay, I'll bite. What rule was he in violation of? All I saw was questions being asked. Not questioning your judgement, just didn't seem there was anything wrong to me.
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    You can go higher than 13 seer. I live in a...

    You can go higher than 13 seer. I live in a mobile home myself and have had a 16 seer unit for the last two years. Not sure why contractor #3 told you 13 seer was the max, maybe it's the equipment...
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    4,994

    We had one like that once that was hit by a...

    We had one like that once that was hit by a tractor. Customer didn't want it replaced, they wanted it fixed... Tried explaining to them you can't fix "destroyed".
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    991

    American Standard / Trane were working on a...

    American Standard / Trane were working on a coating for their aluminum coils to help prevent dirty sock syndrome. Last factory service school I was at they said they hadn't quite got it working yet,...
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    Then you're in the wrong place as the rules...

    Then you're in the wrong place as the rules specifically forbid DIY work. Plus assuming an AC company is going to rip you off without even calling them out is a bit insulting as most of us WORK FOR...
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    I agree. This could be caused by a number of...

    I agree. This could be caused by a number of things. Only a technician on site will be able to diagnose it for you. You could be wasing a lot of time in dangerous heat trying to fix it yourself. ...
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    2,876

    I honestly wouldn't run the system in the...

    I honestly wouldn't run the system in the condition it is in. If the discharge line right at the compressor is leaking, it will push the refrigerant out at very HIGH PRESSURE-this is why clamps and...
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    593

    If you have the 90 second delay on you may get a...

    If you have the 90 second delay on you may get a little more cooling from the coil, as it is still relatively cool. On the other hand, if the coil is no longer below the dew point instead of...
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    15,855

    If the air coming from the condenser is not hot...

    If the air coming from the condenser is not hot or warm you may be hearing the compressor trying to start but it will stop after only a few seconds as the overload opens and shuts it down. The...
  16. Thread: FlexSeal

    by shhvac14
    Replies
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    1,695

    I wonder how easy it is to remove after someone...

    I wonder how easy it is to remove after someone sprays it all over their system to try and fix water/air leaks...
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    There could be many causes, but the problem it is...

    There could be many causes, but the problem it is referring to is the internal overload of the compressor. It may be overheating, not starting, or stalling out. If you are a homeowner there is...
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    If that makes you're shop little, then my shop is...

    If that makes you're shop little, then my shop is bearly a blimp on the map. :) Needless to say, we don't have a spiral duct machine.
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    Hey, I was just responding to what was in your...

    Hey, I was just responding to what was in your post. You said you cleaned an already clean coil and added refrigerant THEN let it run to see what your SH/SC values were. If it was a mis-type then...
  20. Sounds like the overall opinion is fairly...

    Sounds like the overall opinion is fairly positive. If you're asking because you're thinking about having one put in, keep in mind the install is very important. I don't see many Ducane's around me...
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    405

    I just spec'd out a mini-split system for a...

    I just spec'd out a mini-split system for a customer, everything the same except one was a heat pump and the other an A/C. The cooling values were different, but just by a couple hundred BTUs one...
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    1,014

    You cleaned the coil even though it wasn't dirty,...

    You cleaned the coil even though it wasn't dirty, and you added refrigerant before you knew what your SH/SC values were. There are many things that may cause a frozen coil but just doing things...
  23. They might not have the time delay in the unit...

    They might not have the time delay in the unit itself, but every digital thermostat that I've installed or worked on has had a built in time delay (usually five minutes). Sometimes it can be shut...
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    Not trying to be mean to ya, but you posted a...

    Not trying to be mean to ya, but you posted a question on one thread that was already started, then posted the question in another thread you started, and you have a third thread that you said you...
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    I'd like to help ya, but you must have missed the...

    I'd like to help ya, but you must have missed the rules. We aren't allowed to give DIY advice on here. The best anyone can do for you is tell you to call a professional, which I would recommend as...
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