What gauges can i use for R407c????

[luke.180]

I just baught a air con for my appartment and its got R407c gas and ive never delt with it before. Can i use my R22 gauges or my R410a gauges??
Or do i have to go and buy gauges that are for R407c?

Thanx

[GXMPLX]

Yes, gauges measure pressure and R22/R407c can be measured by the same instrument unlike R410a (with higher pressures probably needs a wider range gauge).

What you should not use is the temperature scale. I'm not saying you can't because temperatures are close enough but you introduce an error.

It's better to use the same gauge but if you want the saturation temperature, look in a chart for R407c.

[coolflow]

I can not belive the mods have not picked up on this!!!!!as i know all gauges that compare 22 will have 407 and 134 and pos 404. YOU will have come across this if you know what you are doing??

[coolflow]

And if you have just bourght it and i presume are fitting it your self what do you need the gauges for unless there is a problem with the install.Gauges are ONLY used for diagnostics and poss inital vac If you do that??

[GXMPLX]

I can not belive the mods have not picked up on this!!!!!...??

You mean your avatar???

[Brian_UK]

I can not believe the mods have not picked up on this!!!!!

as i know all gauges that compare 22 will have 407 and 134 and possibly 404.

YOU will have come across this if you know what you are doing??Please explain in unexcited text why you think that a Moderator should have responded instantly to this thread. :(

Also, your assumption that all R22 gauges have the other refrigerants on the dial is incorrect. There are many on the market that have a single refrigerant scale.

Your final sentence assumes that all technicians are at the same level of competence as yourself and we take it on trust that you know what you are doing:eek:

[coolflow]

NO !!407 has been around for years and this chap would have been better asking his work coliges or his collage tutor. and when was the last time any one bought single referance gauges (it is possible but unlikly).and Brian you have helped me in the past( thanks a grate deal),i did not mean instantly but you change like the wind.One thred i reed no probs hears the help...... then the other is as if you dont know dont touch it! Explain.And i am not having a go at the mods!

[Blaster]

R407c pressures are very close to r22 pressures

[old gas bottle]

maybe he,s just a tad busy like all of us at present :p

[Billy Ray]

sounds about right old gas bottle,

i'm choked at the moment, might have a beer or take it out on the cat (poor tiddles)

[Peter_1]

If we should respond to all the questions, why we then nee you members any longer?
Our main purpose is to moderate this forum, not to answer questions.
Making that this forum stays like it is now.
And we don't sit every second before our computer, we have also an normal life.

[luke.180]

Thanx for your help guys, It was a simple question that i wasnt shore about,and for the record my gauge has othe gases on it but not r407c. Its a shame that there is smart asses like you everywere,I bet you wouldnt be a smart ass if it wasnt over the net:o

[coolflow]

Its called ying-yang...while there will be smart asses there will also be dumb asses as well!!

[jcook1982]

My gauges do not show R407 on it either I just use r410A gauges...

[freezetech]

close enough figures aren t good enough you got readings for r407c and r22 for these systems to run with most efficiency thy ve got to right i m glad some of you don t work for me i would have more callbacks for systems not working correctly than i could deal with . people come to this forom for profesional advice not guess work

[jcook1982]

close enough figures aren t good enough you got readings for r407c and r22 for these systems to run with most efficiency thy ve got to right i m glad some of you don t work for me i would have more callbacks for systems not working correctly than i could deal with . people come to this forom for profesional advice not guess work

Yes this is true. If I needed temps i would definitely acquire the appropriate gauges. I currently work on ULT Freezers and only need to worry about pressures. The temperatures I need and use are inside the Heat Exchanger Condenser. Plus in our system we use R407D.:) Happy Trails....