Steve
Almost any GOOID size A/C shop will have an "A/C gas analysis unit" - a fairly expenseive unit that tell them exactly what type refrigerant is in a system or bottle - r-12 / r-134 / after market propane mix
They tested a bottle of r-12 I purchased over via ebay for free - what a deal r-12 20lbs bottle (small) full for $12 (yep $12) - it took a year to slowly transport the bottle from California to Florida - via a classic GMC club I belong to
Pete RTS/Daytona
the r-12 has screw on fittings, the 134 has a quick connect, all you need to do is look at it, you can fill it yourself witha kit from any auto parts, the r-12 is not illegal but has to be serviced by licenced teck and recovered (politics) you can buy the cans of 134 anywhere as well, but if you have a leak you need to fix it as it will be a pain filling it all the time, i pulled mine out of my 06 and trashed it, put in a couple of street rod units and havent had to add a thing to the system since. R-12 is very expensive and hard to get, not sure the current price , if you got that id change it over and get the leak fixed at the same time. There is nobody that will sell you r-12 unless you are licenced. i still have some around from the old days.
Frank allen
4106
Street rod units are add-on air conditioners for older cars from the 50s and 60s that have generally been restored.
See www.hotrodair.com or www.vintageair.com for some examples. I have no idea how multiples of these could be put in a bus. If I was going this route I would probably get the auxiliary air conditioning units from Welch industries designed for a bus.
Brian Elfert
Steve, they are after market add on a/c units that produce 22500 btu s each, i have two, they look like toys and some think they couldnt do the job, they use 13000 btu roof tops and think thats fine but my 22500 are not big enough according to some, but when we go down the road in the Texas summer and its 74 deg in the front driver seat i could care less. thats the way it works and many times we only run one. they have done a great job for us>, there are about 20 or so others out there with thesame setup, and ive heard no complaints yet
Frank Allen
4106
http://users.myelcel.com/roncarter/splitsystem/ my son and myself put this system on in one day, take a look and see what you think. we dont
Cliff i bought everthing i needed from rainbow products near charlotte NC, the mans name is Mike Brown, i have twp units , you may need three because of the added size, our bus is 35 ft, he will have everthing uou need except compresser mounting brackets, i run two units and a single compresser, have a small condenser over the bottom of the radiator, these units are small
Steve,
Your toilet dump would have been in the curbside engine compartment. You can sometimes get to parts of your compressor easier through this door. The R134 sticker may be there. Since you mentioned hoses, the R134 ones are different and that may be evidence of a conversion. However, I've seen the old hoses left on after conversions so that's not a sure-fire method.
Darren
Steve,
1 last resort!
Go into the condencer compartment, and look for the expantion valve, [sort of valve look with liquid lines going in and out with a small capilary tube on top] it may
also be in with the evaporator coil. you may have to remove the inspection cover. On the expantion valve may be printing of which refrigerant may be in the system.
If not, you could read me the mo. # of the valve and I can cross ref. it to the refrigerant it was designed for!
Hope this will help!
Nick-
EL, I can help you find the connectors. Call me at 813-833-2524. Darren
Yes,
It looks like a R-12 fitting to me too!
But, that still is not complete proof. I've seen alot of retrofits that did'nt change the porting. especially early on in the late 80's!
I would still like to see the TX valve Steve.
Nick-
Good point Steve,
I kept my bus air, because I had tried that about 8 yrs ago on one of my service vans that had no A/C. We installed a 13,500 Duotherm on the roof, added a 2000w
state power inverter, and a 8D battery [6.2L diesel engine in van]
1st problem, while driving the duotherm did very little cooling. Reason, lots of heat gain/ cool loss due to air leaks. [freeze your a** off at red lights]
2nd problem, The amp draw off the inverter caused the 8D to drain in 20 min. and the 110 amp. alt. in the van couldn't keep up!
My bus air only has to run 10 to 15 min's to cool the coach, than only 5 min at a time to maintain it. not much load on the DD!
Nick-
Yes,
It looks like a R-12 fitting to me too!
But, that still is not complete proof. I've seen alot of retrofits that did'nt change the porting. especially early on in the late 80's!
I would still like to see the TX valve Steve.
Nick-
Yes,
It looks like a R-12 fitting to me too!
But, that still is not complete proof. I've seen alot of retrofits that did'nt change the porting. especially early on in the late 80's!
I would still like to see the TX valve Steve.
Nick-
Yes,
It looks like a R-12 fitting to me too!
But, that still is not complete proof. I've seen alot of retrofits that did'nt change the porting. especially early on in the late 80's!
I would still like to see the TX valve Steve.
Nick-
Steve,
Your first pic. top dead center, Thats the expantion Valve! [thormo expantion valve or TX for short] Look for stamped #'s or print.
On your 2nd pic I see the WHITE reciever tank that is used for R-12, [still dosen't confirm] and the main story I see is all your fittings are well established in corrosion. Looks to me like the system is orriginal R-12!
Let me know if you see anything on the TX.
Nick-
Steve,
Your first pic. top dead center, Thats the expantion Valve! [thormo expantion valve or TX for short] Look for stamped #'s or print.
On your 2nd pic I see the WHITE reciever tank that is used for R-12, [still dosen't confirm] and the main story I see
is all your fittings are well established in corrosion. Looks to me like the system is orriginal R-12!
Let me know if you see anything on the TX.
Nick-