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Me and another tech were pulling down a system the other day and he had his new mastercool micron guage and I had my yellow jacket... both read something different.. then we tried his old supco and...

j/b it was all the local supply had that was the closest.. then I crossed it with the included chart.. I did a little refrigeration 2 years ago ( for like 2 months) and this is for a good friends...

well cap tube and filter drier changed charge weighed back in... and box is -10 :) I did record all the numbers and will put them up.. but they are on top of the freezer :whistle:

its not a new cap tube its a new compressor... and I am starting to think this was the death of the old compressor

yes this does help thank you... I thought that mp-66 is usually only 80% of the charge for r12?.. now will going from a .049 to a .050 be a problem?

not guessing at all subcooling of 11 and superheat of 78

I was starting think that after he asked.....

ran it for 20 min. the fans never came on... every once in a while I would get a suction of4-5 psi and it would start getting cold and the just bottom right out to zero. ambient at the coil was 80...

mp 66
cap tube.
new filter drier (no temp drop)
called up traulse got the specs for the cap tube.. they want .049 all I can find is .050....

is mp66 100% of charge on r12? I was going to...

even with a 74 degree box?

well go the compressor in., the system vacuumed and about 75%of factory charge in.... to find no suction pressure... looks like I have to find a restriction... had 135 high side with 0 low side with...

and no the lowest ambient it will ever see is probably when they jack the t-stats down at night to 55....

nope have a ccrv already... they were worrying about liquid migrating in the off cycle.. gonna start the big one.. but what does everyone like better for r12 conversions hot shot or mp66.. from what...

freezer,no remote condenser.. I haven't done a lot of refrigeration, but the guys at work claim to.. and they said definately add the cch..

couple guys at work swore up and down to use one.. good to find out now

Hey guys doing a compressor change on an older r-12 traulsen 2 door reach in.. got the new copeland and also ordered a crankcase heater.. there seems to be no way to mount the heater?? am I missing...

well you will need the erv for the air in the house regardless . dont want a stuffy house. look up my email in my profile shoot me one and yes that unit will go into the crawlspace.

sorry for the randomness of my typing.. just throwing things out as I think of them

http://catalog.mitsubishipro.com/viewitems/indoor-units-for-city-multi-systems/g-concealed-ducted-low-profile-models-indoor-units?&bc=100|1140|1142|1153

with wall units we dont usually put one in the bathroom.. normally would be one for the bedroom and rely on the air making its way in the bath. a strip of electric in the bath for sure. no one likes...

yes they will require an air handler. you will find that the air hanlder is much smaller than what you have. now.. the ones we did were mounted tight to the ceiling and hang down roughly 10 inches....

cassettes are meant to be above and feed air down. you will need the ducted style units. we also put the controls for the aux. heat.. w/ the mitsubishi they only come on when the house temp has...

I jsut finished a foamed house w/ minisplits. we used mitsubishis, they make and a concealed air handler that you can run duct off of. I believe that fujitsu does have one also. as far as the...

If you are sprayfoaming a house tight, You will definately need fresh air.. I would look into an HRV or ERV depending on you area.. also I wouldn't put the drain into the main drain either.. if the...

another vote for the YJ w/ reverse bender. You wont use the reverse bender all the time but when you need it you will be very happy you have it.:.02: