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Green88 so you don't flow while brazing? Just flush the pipe and then keep it sealed. I think that is exactly the way to go. Thanks. Saves on the nitrogen also.

GA. If you open the end of a duct is there no static pressure in the middle? No static no flow

How do you know you have nitrogen in the fitting your brazing. Having no problem is different than doing it well. I'm not looking for help. Just saying if you have X static in the joint you have to...

Brazing with nitrogen is hard. You can't flow through a tube or a duct without building static. Science right? Well that static can at times pushe the brazing material out of the joint. So at...

The flame is conductive and the circuit is between the flame rod and the burner. So be sure to clean the metal parts of the burner near the flame rod so you get good current. You should also put a...

I did some work in apartment building built in the 30's. the plumibing copper was all odd sized stuff. Apparently before they had standards companies made copper pipe and the fittings to go with...

This was years ago. Low income high rise, no cooling call. Found the Honeywell T87-f being used as an incense holder and of course the incense was keeping the mercury bulb from moving. Called back...

I want to use a honeywell T775 to control a two way valve on a 100% OA air handler. I want to automatically switch the action of the control when the system is flowing chilled water or hot water. ...

I used to teach my apprentices, yes I am union, a more detailed view of this. It went like this. As a steamfitter you are an skilled craftsman, you are your own man, a hired gun. You own...

I'm looking to buy a welding machine for retrofit jobs, small pipe 4" or maybe an occasional 6" flange. Electric single phase 230 volt. I'm not a welder, I just want to have a machine to use so I...

Ok just to follow up, I did the checkout procedure and had 4 ohms from red to greren, 3 to 5 I think it is. As was said correct reading is 25 ohms +/- 1 ohm. So the motor is indeed bad. Thanks...

The sensors read ok in the digital read out panel. I downloaded a checkout procedure for the exv and I'll go through that step by step tomorrow.

Thanks for all the tips.

The valve and the suction line into the chiller frost up and just stay white with frost until it locks out on 116, I think it is.

The other valve is working ok, but that doesn't mean the board is not bad. Could be bad on that one circuit I guess. Is the orifice included with the valve or is that a seperate part number? I've...

I made sure the sensors read right in the menu, the one in the end of the barrell by the valve and the one in the compreessor for superheat. I did not ohm the valve out.

I'm working on a carrier 30GTN 050 and the EXV looks to be bad. Part #32gb402544 This valve is damn expensive. Is it wothwhile/possible to try and repair it or is replacement the only option? I...

These guys sell a lot of SPX stuff so I think they are authorized. But who knows, the warranty is not a big deal to me, I like this detector and for 196out the door, if I can get a couple of...

I have the Milwaukee m-18 4 piece set. light, impact driver, hammer drill and sawzall. Maybe I am being too rough on the tools, but I expect a tool should be designed to fall off a six foot ladder...

$196 including 10 bucks for shipping. http://www.ntxtools.com/

These are great leak detectors, but a little fragile. Mine is acting alittle funny lately so I checked this place after they sent me...

I just ordered the bluevac and the appion megaflow kit from Truetech tools. I got the kit without the gauges. Used it on a 10 split system with 120' of 1-5/8" pipe. Worked great, having the big...

I've had problems with it too. I got a new sensor for it and it's still all over the map. I had to buy a supco just to get a job done, even that one seemed iffy, I'm going to order the bluvac.

no, just y-1

existing stat is an old honeywell chronotherm, the biege and brown one with the fold down front cover. I know about delay on break timers, but if the fan is not on then i don't want to run for 5...

I have a system with two condensing units and one air handler.

The air handler has an auxilliary contact the energizes a DPDT relay allowing the y1 and y2 to pass to each condensing unit. The...

groinocologist! Am I the first one to say that? Must be a slow day. Actually just find what you like, everyone is different. That is the beauty of this trade. I like learning new things and I...

When I taught basic electricity I took a shop vac, turned it on and took an amp reading. Then I wrote it on the board, Then with the amp probe off, I put my hand over the end of the hose and had...

maybe a bad oxygen sensor. Maybe the senor just came loose. How old is the sensor?

The best things about digital is being able to use one set of manifolds for 22 and 410A. An analog gauge with both a 410A scale and an r-22 scale is hard to read on the 22 scale and is not granular...

I'd have to buy a new meter. I don't think I'd ever be able to trust it.

I'm getting some work on larger boilers now, 1 million btu up to 4 million BTU, I even have a couple of condensing 2 million btu boilers under contract, Hydrotherm KN-20. So I have the TSI CA-calc...

Bacharac leakator jr. it's the only one I have ever owned. It's worked well for me and I found leaks I could not even smell, but soap bubbles confirmed the leak.

I'm wearing the wolverine durashock sr with steel toes. Comfortable and a decent boot. The best boot I ever had was the Diehard's Sears made about 15 years ago. The ones they sell now are not the...

I have the ca-calc 6130, it's been very good, reliable, but when it's really cold out I get an error message until it warms up, so in the winter I bring it in the house. Maybe that's the same for...

That's exactly what I am worried about, how to keep them from falling while I get them far enough apart to get a choker around the section I am removing.

I'm thinking of something like two hooks...

You left off your list "a couple of strong green horns" lol! I'm not excited about this job myself. BTW not replacing, we're repairing it.

First thing tomorrow, I have to replace some 4"...

Beauty eh? 135101

This property was a nightmare, the former chief really screwed things up bad. The have over 25 small water boilers and on at least five of them I found the high limit's wrapped in duct tape so the...

I'm looking to pull apart an 18 section weil-mclain 94 boiler. Any tips on a rig to hook into each section? I'm going to set an i-beam with a trolley centered on the boiler and I picture some sort...

My combustion analyzer, TSI CA-CALC, gives an error code when its too cold. I bring it in in the winter and leave it by the door. lithium battery drills can be a pain too, never had an issue with...

I've seen one in a drawing Trane did for long run heat pumps. Specifically when the outdoor unit is above the indoor unit by more than 50 feet. They wanted an accumulator with a little cap tube...

pressure in the building is affected by wind, it's affected by stack effect in the winter, when your building is in essence a hot air baloon that can't get off the ground. The elevators act as air...

Got these for a few of my best customers for holiday handouts, those who would appreciate a tool anyway. The logo is laser engraved on the steel part. I have not seen them in person yet since I just...

Crazy4thenucks, How is it for heat? Do you have a lot of internal heat load. I'm thinking Canada and heat pumps can't be good unless your supplementing it with something.

Thanks for your input. If it goes this way I'll be going to the training classes. One thing I can't get a handle on is if you have an evaporator leak, do you have to remove the charge from all the...

The cooler you run it the more efficient the machine. However too cold and you get problems with oil, I rememebr 68 degrees as a sweet spot, but it's been a long time since I worked on centrifugals....

I bought the rigid WD4070 at home depot. 4 gallons and it's a nice vac and has withstood a lot of abuse. The problem is the only filter I can get is the hepa for 14 bucks. I wish I could get a...

I've seen where the main problem from low air flow was the ducts sweating, which led to mold in the soffetts and was expensive to fix, granted that good duct insulation would have prevented this,...

Has anyone installed serviced the LG VRV systems? What's the good or the bad

My prayers are with you and your family. May you have a full and speedy recovery.

Well sorry, no pictures I forgot the camera. But I tested the klixon and it terminated the defrost. Now when I popped the top the insulation sandwiched between the stainless steel walls on that...