View Full Version : anyone use this tool?
06-07-2005, 08:17 PM
johnstone # h26-131
its a superheat/subcooling meter !!
Works good too. I have the 404A, 134A and 410A keys.
I can use it for a spare vacuum and pressure readings if needed.
06-08-2005, 12:20 PM
How Does It Work?
06-08-2005, 01:08 PM
I got one work out well There are a few guys on the A/C like my self.That use them as well. I have a set of gauges set up with tees on the high and low sides just to make it simply.
Originally posted by cracker
How Does It Work?
06-08-2005, 03:04 PM
i just noticed it seems to work only with 134,404 22 and 410..........
06-08-2005, 03:10 PM
You can get more keys then that.22 and 410 comes with it. Look on J@B website
06-10-2005, 08:26 PM
It sounds like a cool tool. And if this sucker gets techs to get into the habbit of taking superheat and subcooling readings ... and writing them down in either their notes or on invoices ... it is worth the expense.
But a good set of gages with a Fluke 52 should be able to give the same results.
I dont care how many gizmo's are needed just as long as the people in the field get the job done.
And superheat/ subcooling readings are a major part of that job!!!
06-11-2005, 12:03 AM
i use guages and a digital temp. guage, but i like do-dads..
This unit is switchable. It has buttons for pressure, temperature, subcooling, superheat. Gives good vacuum readings. It is a great all in one package piece.
I also use it to train rookies for superheat/subcooling. They use their stuff and I use this. They check their calculations against my J&B. They tell me they know this stuff so I stand in the background and watch and laugh.
If you don't have one, I highly recommend one. It is a great tool to have in your truck and a wonderful training aid.
06-14-2005, 11:59 PM
very handy tool if you work in a lot of grocery stores,instead of having guages hanging outside of a glass o door or a case who can hide that little box just about anywhere while your working on something else.I know EVERYONE waits atleast half hour for every 1/4 turn on that txv so its nice to conceal that thing and keep,the guages off a sales floor
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