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They are vacuum rated to 20 microns, I do know that.

I stick with FP and Klein. I currently use a Klein CL320 daily for the last year or so and it's fantastic. I also am trying a CL445 which is a little better as it has inrush. I also have one with the...

I'm wondering too. Where do you get this tool. A search shows nothing.

When you measure superheat or subcooling, you are measuring the difference between the saturation temperature at that pressure and how much "extra" heat in the form of sensible heat the refrigerant...

My first question is why did you replace the pressure switches? You could have simply shorted the switch leads after the inducer started and see if it ran. Kind of a try before ya buy sorta thing. ...

The world has changed, period. I hear guys saying all the time, that they only buy USA made and, of course, we know that's BS. As someone mentioned, try to find something made in America, or even try...

One thing I don't think was mentioned, and is of vital importance, is that when you measure voltage, you are actually measuring the DIFFERENCE in voltage between two points. In other words, the...

Two things, if it's working, I'd give it some time to see if it continues to work. Second, if it's working, I'd probably leave it alone. Save your money for when it's not working.

I with you on the FP probes. I've had them since the day they were released and don't see anything out there that can touch them. Mine are reliable and have been used a lot in the time I've had them....

I normally use the Honeywell RTH6580WF. I have a church with 10 in it right now and I can monitor their workings any time day or night. For home use, I think there is limited legitimate use, other...

I come from a family of electricians and I'm the black sheep that also does HVAC work. I can carry any meter I want and between us, we've tried almost all of them. I don't see the pressing need for...

I hope I didn't miss something, so please excuse me if I did.
The drawing doesn't look right. I've not seen two pressure switches ported to the same place like that UNLESS it was a 2 stage furnace....

Yeah, I bet those oxy cyls are expensive, and not worth it. In the order of preference, I use.
*Mapp/StayBrite 8
*Trubo torch/ B tank
*Quick Braze and small carry outfit of oxy/act
*Full size...

As said earlier the BV and the new FP gauge have bar graph indicators to let you know almost immediately that it's going down. I hate starting a vac and not know for a long time if I have a leak or...

You can make it as complex as you like. I've seen guys with a whole tool bag full of stuff to pull fan blades but that's overkill to me. I'll always have basic tools, nut drivers, adj wrench etc so...

Someone asked about ASCO tips a while back. I was at a hands on demo not long ago and I have a #5 IIRC. They're good but I don't think they're any better than turbo torch or any of the others. I have...

The FP probes are so far ahead of anything else, I can't imagine using anything else. So much more info on their app. I've used them since the day they were released and never looked back. No...

As a general rule, we are reluctant to wholesale approve any new tool, or service idea that comes along. Think about digital gauges, zoomlock, and stay brite 8. This is a good thing, as it causes...

For really tough walls a Hilti sds. For average stuff including most concrete we now use Flex 24v hammer drill. It's a beast!

Thanks a lot for the confirmation. You guys are the best. I always try to cover every base and I guess with a church which struggles with money I just wanted to not miss anything. Sometimes techs...

We serviced a church gym today. Two above furnaces suspended horizontal from the ceiling with 4" vent going out the side walls. 155kbtu units, which would normally require 5" vent and no sidewall...

I do need to correct something. I did end up putting a new cap tube in the other fridge that plugged up on me but this Turbo didn't need one. It's running fine as of today. I didn't look at the specs...

The best advice is posted above...get a vac setup and eliminate the manifold. Good hoses and core tools are more important than the pump size. Once the vac reaches <2000u you're pulling so little air...

Vac gauge goes on one of the core tools side port.

I almost always use two 3/8" appion vac hoses, to two appion core tools. I also have a couple 1/2" hoses, but honestly, on resi stuff, 3/8" is a couple minutes. I've sometimes thought about just one...

I normally use a YJ 4cfm super evac and normally on resi stuff I'm at 500u within couple minutes also. Obviously I let it run longer, but it's quick. I've never run into the flash freeze problem in...

Good question. Probably cost but heck at $700 who cares at that point?

The carrier gaskets are over two months out in the parts system. Soooo, what about ceramic high heist insulation cut to fit?

I have a church gym with two carrier furnaces suspended from the ceiling. One is leaking air into the hx at the bulkhead where the individual cells are mounted. I removed every cell and inspected...

I'll stick with the Accutools version for less than half the price. I like Appion tools, but $60 is a bit over the top.

I solder most of the time now, but do braze occasionally, when I do the n2 goes thru a Hilmor (Diversitech clone) puge and braze restrictor valve. Works, no need for dials and flow gauges, just set...

One thing I would want to know is that the battery pumps have an anti backflow valve to eliminate the chance of oil from the pump being sucked into the system if and when the battery goes dead and...

Those are what I use and yes, you can buy them seperately. They are the best screwdrivers I've ever used.

I was recently looking for a single gauge manifold, like you use for small appliances and mini splits, when I came across the Elitech digital single gauge manifold with saturation temp calculated on...

I wouldn't doubt it's the same company. I get so sick of seeing they very same piece of equipment with several different names on it, makes me wanna puke. It's like the Craftsman name, it's just a...

Some were UEI, and some are other makers. Yes, they are slow on capacitance, but I've never found a situation where capacitance speed was an issue.

I've said this before, but just for some prospective, I come from an electrical family, so we've had, used or tried almost every meter known to man. My brother is a Fluke snob, My dad who passed a...

Can't bypass a pressure switch? Hummm.
Sure you can, you open the circuit and start the furnace, then when the inducer starts, short the leads together and if the PS is the problem, the furnace will...

That's funny I had an ACD-14 that had that burnt smell too. Worked fine and I finally convinced myself it was plastic off gassing. Thats kinda weird.

All I can say is I've used a g5twin for around seven years now with no issues and have no plans to change.

The Fluke 902-FC is not a bad meter per se, it's just not a real good choice for me as an HVAC meter. I agree with the previous poster who said it's ironic that's what it's called. There are soooo...

I'd say you're pretty close to the truth.

Well holy cow, it never occurred to me. I just asked for a cutter at the supply house and they handed me that one. Makes more sense now, the previous ones had blue handles and this one is red, I bet...

I never thought buying tubing cutters would be such a hassle. I bought an imperial cutter TC1010 and it's the biggest piece of junk ever, walks all over the tubing. Anyone tried Imperial lately? I've...

For my money Channell ock makes the best.

The AEMC 407 is 100ms for inrush. That is the unofficial accepted time for most meters except that the Amprobe ACD-14- Pro and similar meters use 80ms. They're made by a different company than the...

I use the FP Rapid Rail clamps and have checked them against Amprobe digital thermometer and FP meter with K bead probe. All told, properly cal'd and found 1F variance. So I'm good with using the...

I remember when they were bought out, or whatever, new owners took over and the guy did a video of how they would maintain the product and had plans for big improvements, blah, blah, blah. But, in...

The company was sold and the new owners have hit a very solid wall. FP came out with manifolds and probes that do the same thing a lot cheaper and Testo, Sporlan, Appion and UEI followed suit. That...

I dunno, I do the test, print the results and stick the printout on the unit and then log it in my records in case the printout gets lost. Even if I emailed it to the customer they would probably...