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  1. Replies
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    Thanks for the replies. Now I just need to find...

    Thanks for the replies. Now I just need to find out who is willing to put one in. Have to find a contractor.

    Anyone from here would be great!!

    We have an R22 3.5 ton Weatherking Split Air and...
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    Goodman versus Trane Heat and air

    Looking into a new residential furnace and air conditioner.

    I have been doing some searching and it seems goodman offers an excellent warranty, 10 years. Their furnace exchangers have a bit of a...
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    Another shot at uploading it. Ok I uploaded it...

    Another shot at uploading it. Ok I uploaded it as a ".DOC" Change the extension to XLS after you grab it.

    EDITED:

    Sorry I did not label the columns very well. The 3rd column over is the...
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    Acetylene Maximum Safety Draw

    From my previous post I have come up with a formula. You will have to change the Nozzle Column after every run and you have to time how long you run the actylene each time.

    Well its at least...
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    It is off EBay, but its an actually Local...

    It is off EBay, but its an actually Local Distributor in my town.

    They drop ship from ThermaDyne (Victor).

    How do you deal with the Safe WithDraw Rate on your UniWeld?

    DO you have the AC MC...
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    I changed my mind again. The Superrange II...

    I changed my mind again. The Superrange II welding tips are all wrong for the AC-MC Tanks.

    I called Victor Tech Support and they told me the running times will be too short and I will pull in...
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    I agree. But I was told that there will be a...

    I agree. But I was told that there will be a problem using the RoseBud Tip with the MC-AC tank. I was told it will suck out the acetone and contaminate the regulators.

    This is only a concern for...
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    I decided to get the superrange II. Its from...

    I decided to get the superrange II. Its from EBAY but this person ships it directly from Oxygen Air in Indianapolis.

    I told him the 25 feet of hose might be too much for a small OX-20 and AC-MC...
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    Butyl-Lined Gloves

    I have not been able to find these type of gloves from my HVAC wholesaler? Johnstones does not carry them.

    Grainger has them but they call them Butyl Rubber gloves to protect you from chemicals...
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    HVAC/R Most Observed Leaks

    From the Pro's Experience and Perspective on this forum, where would you see the majority of the leaks take place most of the time?

    You would think Evaporator from all the condensation, possible...
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    Ya those JB's look great both specs and price on...

    Ya those JB's look great both specs and price on EBay.

    You said RobinAir Makes both a Blue and Red 15600? SO far I have seen only Blue and one darker blue none say SPX but they are as you say...
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    Its a tossup between the RobinAir 15600 1/2...

    Its a tossup between the RobinAir 15600 1/2 horsepower, 2 stage, 6CFM's, down to 20 microns versus the JB platinum.

    I appologize for asking about CPS and FJC. Neither one actually carry TRUE two...
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    Thanks for the info. What Micron Gauge do you...

    Thanks for the info. What Micron Gauge do you use? I see VG64 Supco. Is that a good brand? It under $150.

    Do you even use a micron gauge?
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    FJC or CPS vacuum pump?

    I am looking at a two stage 1/3 HP pumps. Both FJC and CPS put out decent vacuum pumps but not sure which brand to go with?

    Anyone here with experience with these pumps? Does one go out easier...
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    Victor Superrange II or Uniweld Hot Stuff

    Its between these two kits. Victor Superrange II or Uniweld Hot stuff HS-MDU.

    Both kits have built in check valves and FLashback arrestors.

    The only thing that is holding me back from the...
  16. I feel like an idiot, I think I know what...

    I feel like an idiot, I think I know what happened for that moment.

    Is it possible while the yellow and blue are open, red closed, that the 4th port could actually have suction at the gauge?
    ...
  17. Then either there is a problem in the system or...

    Then either there is a problem in the system or my gauge?

    Its a Tiff 9600, the forth port when opened for a moment seem to be pulling. The low side line reads a positive 64 PSI. When opened it...
  18. Your saying there will be no slight suction at...

    Your saying there will be no slight suction at all? Not even in the least? I am not saying there is a vacuum. Just the slightest pull is all.

    If not then obviously there is something wrong with...
  19. mechanicalgsxr My system is properly charged...

    mechanicalgsxr

    My system is properly charged and yes It still sucks while the AC is running. Think about it for a minute.


    Maybe the adapter I have connected to my manifold gauge is causing...
  20. HeyBob, I get my universal EPA card in the...

    HeyBob,


    I get my universal EPA card in the mail possibly by next week is why I might have to wait?
  21. thump_rrr I realize it is a positive pressure...

    thump_rrr

    I realize it is a positive pressure system, but the compressor tends to pull the refrigerant on the low side thus you tend to have suction. If not how would you ever be able to vapor...
  22. HeyBob, Thanks for the link. Will apply next...

    HeyBob,

    Thanks for the link. Will apply next week. Is this for the the private area?
  23. Purging, attaching and releasing Hose Question

    Just from observation:

    Residential split R22 system:


    Should the gauge hoses be connected and purged while the appliance is off? If the appliance is on, you have a suction in the suction...
  24. For all others, I meant all other appliances not...

    For all others, I meant all other appliances not in the commercial and industrial processing category, 50 pounds or more.

    Mainstream mentions for small appliances, leaks don't have to be repaired...
  25. 50 pounds or more, commercial and industrial...

    50 pounds or more, commercial and industrial processing, an annual leak rate of over 35% must be repaired within 30 days. All others, over 15% leak rate.

    Small appliances leaks are not required...
  26. Here are a couple really kewl sites that offer...

    Here are a couple really kewl sites that offer you online free practice exams.

    I found a few mistakes on both of these sites exams but for something that is basically free who can complain.
    ...
  27. beenthere, The current table is from the...

    beenthere,

    The current table is from the Mainstream study guide copyright 2008. There is a section in there explaining the confusion with this chart on the actual EPA exam.

    The most current...
  28. beenthere, You are correct. Have a look at...

    beenthere,

    You are correct. Have a look at what I posted just before your post.
  29. C is correct if you go by the older chart and the...

    C is correct if you go by the older chart and the correct answer on the EPA Exam. B is more correct if you go by the current EPA requirements since March of 2004.

    R-502 was in the same category...
  30. A challenging Question from the EPA Section 608 Type II Exam

    To change a compressor on a system containing 40 pounds of R-502, using a recycling machine that was manufactured AFTER November 15, 1993, you must isolate the compressor then:

    A) Simply remove...
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    Thanks Again for all the help. May I ask if...

    Thanks Again for all the help. May I ask if anyone has tried the UniWeld CAP'N Hook tip on Victor compatible equipment? I think the UNiweld brand will fit the J28 outfit , light duty and not the...
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    Thanks for the information

    Thanks for the information
  33. Replies
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    Brands of Oxy-Acetylene Torch Kits

    I have seen a few of them around and not sure which one most people prefer.

    I have seen Victor Firepower, Campbell Hausfeld, Astro Pneumatic, Uniweld, Lenox, CGI and a couple of generic kits...
  34. Replies
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    Quote: "Please read through the following...

    Quote:

    "Please read through the following rules and instructions.


    HVAC Pros, please note; home owners are welcome to ask questions here, if you do not wish to be helpful that is fine but do...
  35. Replies
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    jimmyhoffa, Excuse you. :), the 2004...

    jimmyhoffa,

    Excuse you. :), the 2004 Mainstream Interactive Software CD has countless study and practice questions that easily go over 400. For the 2008 Interactive CD software there are over...
  36. Replies
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    I did not know the wholesalers had them. Thanks

    I did not know the wholesalers had them.

    Thanks
  37. Replies
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    Refrigerant P/T Charts

    I did a lot of google searching as well as search this forum and really have not come up with a decent P/T chart of all refrigerants in one document that prints nicely.

    Does anyone have a good...
  38. Replies
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    Thanks beenthere. no offence mechanicalgsxr. ...

    Thanks beenthere. no offence mechanicalgsxr. The Mainstream course was over 50 pages with several pages on review notes and over 400 practice questions. Dates are vital but there are core...
  39. Replies
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    Try again on the EPA test. Maybe you took yours...

    Try again on the EPA test. Maybe you took yours a long time ago? You have to study for a couple of weeks. Maybe its a one day crash course but your not going to pass the exam in one sitting ,...
  40. Replies
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    Thanks. That was a great explanation and...

    Thanks. That was a great explanation and description of what can eventually happen to a system with air in it.

    With Daltons Law I have to go back to the good all college textbook. :)
  41. Replies
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    I am universal EPA certified, PM and 410A through...

    I am universal EPA certified, PM and 410A through mainstream so I would say I am not a DIY as you say!!

    Soon I will be MVAC and Clean air Certified.

    If a 10 year old experienced tech showed me...
  42. Replies
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    Then what is the correct procedure for purging...

    Then what is the correct procedure for purging the hoses and manifold?

    I can see how the operator can introduce a contaminant but what do you mean by its the operator's problem and not the system?...
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    Thanks beenthere for clearing that up. I am...

    Thanks beenthere for clearing that up. I am taking more advanced classes this winter. I have the money for a newer R22 system since mine is near its end. However I am not sure if I have the cash...
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    Its a Weatherking 3.5 Ton. I was wrong on the...

    Its a Weatherking 3.5 Ton. I was wrong on the amount of refrigerant . On the receipt for over 5 years ago they added 2 pounds, and noted the system held about 18 pounds.

    I think they are off or...
  45. Replies
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    I know all about purging etc. m-cooling I agree...

    I know all about purging etc. m-cooling I agree there are some very smart people here and I am not referring to them. Exactly how did I bring this upon myself? I asked a question and received some...
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    Thanks for those who gave some clever ideas. And...

    Thanks for those who gave some clever ideas. And for the cautions. I must say though there are a lot of very unhappy people in this forum.

    Sure I am new to the field and maybe my idea sounds...
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    beenthere, I did not think of that at all thanks...

    beenthere, I did not think of that at all thanks for the advice. Is there a way to do this with a recovery unit? Might take way too long with a recovery unit and recovery tank.

    I am eventually...
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    Won't happen. I have an Imperial Qwik Charge...

    Won't happen. I have an Imperial Qwik Charge adapter. I will have it on the manifold suction side. So the liquid will enter through the drier and then pass through to the suction side if this will...
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    I purposely chose that name. I should have...

    I purposely chose that name. I should have expected a reaction like this because that is how most people are stupid and uneducated!!

    For the one and only one person who properly replied thanks.
    ...
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    Creating a Filter Drier Loop Question

    My R22 system is about 15 years old. It has no filter drier on the liquid line. Nor anywhere else on the system

    What I would like to do is just run the system R22 refrigerant through a drier that...
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