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I think you were quoting from my post.

Worth the investment?
I expect so, but time will tell.

"It is also used also to set the calibration and..."
I used "also" instead of "only".

My...

One good 3CFM at EACH end of a system seems about twice as fast as using one 6 or 7CFM at only one end. I don't always do it, but I like a pump setup at each end of the system.
Two of my 3 CFMs are...

I regularly use about 10 gauges/manifold/hoses sets, not counting the 20+ others I've collected over the last 40+ years.

A low volume analog gauge/manifold set with very short hoses for ice...

I just got a new 1200 on Ebay for 300.00, S/H included. I have to say I don't know the regular price on these.

I just noticed I replied to a very old post. Opps.

Most silicone caulks contain a lot of ascetic (SP?) acid, that vinegar smell. That can start some corrosion until it fully cures. Just my opinion.

jt

Develop a habit of throwing the disconnect handle with your left hand, especially when throwing the switch "ON".

I've had some cases where a fuse cartridge exploded. The disconnect door will blow...

I had removed both bulbs before I thought about taking a picture. The badly installed bulb spanned the tubing adapter area of the upper suction outlet. The lower outlet had a section barely long...

I'm interested also.

I should have said "I bet you up there because some other unit was down".

I'm glad for you that you do work on them. The very few of those condenser units I've serviced in last 15 years were easy...

That's the way it looked 20 years ago! Bet the OP didn't go up there to work on that one! He didn't need to! :):)

On a vertical bulb install, position the cap tube end up.
And at the vertical suction line near the bottom I feel around for the coldest side (you can use a pipe temp sensor) and put the bulb there....

I wish those K connectors were more idiot proof. I all mine take just a bit more effort to plug them in backwards. If it is a polarized connection, make it visually and really mechanically...

I've been using one for over five years and have no complaints except it won't get around those 20+ ton suction lines. I needed to get the temps off some 1 5/8" to 3" lines.

I currently have 2 class IV Flukes for working right off step down transformers.
Those have been fine for several years but they don't get drag around every day.

For every day use, I've been...

I broke down an old Typhoon split about 10 years ago. One inch liquid line and two inch plus suction line. It had been left idle for over 10 years. Recovered over 55 pounds of R12. It had to be...

About two weeks ago had a no cool service call on an old Trane 8 ton. Dead digital thermo. Thought I would check the basics on the exposed low control terminal board inside the AH. Got 240AC...

A real glutton for punishment.

Hey PD, Why are you just wasting away that great sunshine outside today by sitting in the AC in front of a computer screen? :D

I was trying to be nice.:D
Ya think?!?:LOL:

I could be wrong but it looks like too many basics of diagnostics have been left out. Need a lot more info.

A larger volume area, closer to the pump's actual input, helps the pump "gulp" a little more CFM with each rotation. Larger volume areas further away from the pump are less effective improving the...

Ditto.

And while I was at it, carefully went through the TEV needle/valve works if I could get at them. Ten (or so) powerhead replacements over an eight year period and 100% of the time the TEV...

Dust from pigeon droppings (was already mentioned).
Dust from condensate lines and drip pans ("black mold" and others)

Used to drink about 6 to 15+ a day. Every day for 30 years. Closet drinker. Kinda quit about 15 years ago. Totally quit 6 years ago.

For many years I drank to help pass the time and liked it....

I forgot:
If the pump now works good enough, gently blow out the motor windings for better motor cooling and oil the motor (non-detergent 20 or 30 weight motor oil).
Sometimes it will pump even...

What brand/model?


You can try a through inner cleaning of the pump case before a rebuild or tossing it.
Take off pump case cover (get some advise before trying).
Leave the actual pump...

I think this is your entire tool set. :eek::eek:

Which one do you use for subcool readings?? :D:D

:LOL:

I think you can do that if you don't upload your pics to HVAC-TALK but provide a link to a photobucket album. I have not done this myself yet and may be wrong about it.

Retread, Actually there are not "pistons" in these pumps. I think they are called "vanes". Pistons describe better what most people expect to be in the pump and more people get what I mean. This...

If it makes a rattle sound only when down to 200 - 15 microns, I would think that would be OK and common for a lot of JB pumps. I think it is common for pumps with metal sliding "pistons" rather...

For me, sometimes "pressure loss over time" is not always an easy option (more than 15 minutes). I can often pressurize and hold for several hours or over night but sometimes not. I usually first...

Where you said "Stupid of me" I would disagree. Then all of us would be "stupid"; especially me. I've never in over 45 years of service found any contactor safety devices that reset by manually...

Someone used a gauze type core in a filter can?

ascj, looks like the CLO did a good job, just what it is there for.

Hey Doug. Thanks for the info. I ready to pick out one of your DC gauge sets soon and will be watching these posts and your web sites to help in the choice.
Glad to have met you while on vacation...

On my last service Thursday I found a single "A" belt used on a 5hp 3ph air handler motor. A real squealing pulley/belt burner. I installed two larger diameter pulleys and a "B" belt for more belt...

The CLO will restore full control voltage to the contactor when the contactor is manually pushed in. The CLO resets when it detects the correct amperage on the monitored wire.

Look for ways and places that large amounts oil could be getting badly trapped in this system.

After hours of appearing to run well in warmer weather, check the oil level in the compressor. Some...

Brazing at any oil drain point can be a real "flame thrower" problem unless ALL of the oil is gone from area that the torch is being applied. Be careful.

Timebuilder at post #16 got the the best possibility IMO. Several others have chimed in on the CLO controls. Pushing in the contactors and then having them stay engaged makes it seem like the...

Just noticed 79 views and no replies to your post. I don't have complete info but decided to reply anyway. I don't recall how the valve came out of the pump but I could look at them Monday at work...

This is what I use for smaller (under 10 tons or so) system evacs. The pics below show a remake version that is smaller than the earlier one I used and this one can pivot to accommodate the stiffer...

This is what I use for smaller (under 10 tons or so) system evacs. The pics below show a remake version that is smaller than the earlier one I used and this one can pivot to accommodate the stiffer...

I like using my two Madden manifolds. Easy shut off under high pressure/vacuum. Great for modulating flow. Slimmer than usual width. Strong construction. Had four leak fixes (2 stem washers and...

I believe the "by-pass valve" or gas ballast valve does allow the output of the first stage to exit instead of going to the input of the second stage part of the pump. So opening the gas ballast...

Drop-away cabinet floor for better access!! :eek2:

Are these going to be a variation of ball valves?

I like ball valves for full flow, offs, and ons. I find them tedious to feather the flow. If Doug uses a ball valve design, I suspect he will...

About two years ago I saw a Circuit City sale on Acer Aspire One netbooks for 219.00. Real small, good battery life, built in wired and wireless LAN networking, 3 USB ports, slots for several kinds...

If you do go for them nut drivers, keep us updated. Them ratchet action brace and bits make those bottom screws easier.:D

I'm a recreational amateur without a degree of wisdom and you guys are...

I've seen some 480/3ph disconnects with one out of three knives stay connected after throwing the lever down to "off" AND seeing the unit shut down. The fiber link that was supposed to pull the...