Originally Posted by ChiliChzPoopTart
Don't worry, we're earth friendly down here
FIL will be recovering and then handling the recharge, He's a major gearhead. Should have stated that.
as im not worried as much about earth friendly as I am about safety..
I was on a Job working on a 120 Ton roof top unit (12,500 BTU is 1 ton.. so it was a big one).... I always wore long sleeves, gloves and safety goggles.. tis unit carried about 100 lbs of freon in it (was a split)... my coworker blew a gauge hose connected to the liquid line while recharging it... I was fine.. he suffered severe frostbite and burns to his eyes before I could get the hose unscrewed from the schraeder...
look for a label with te full charge amount on it... its usually placed somewhere by the coach builder or A/C install company... if the system was fully functional before you recover the charge and there;s no label , have your friend weigh out the amount of freon he recovers... you can use that as a base amount when recharging...
its tougher to recharge by gauges a Tie in were one unit is a TxV and te other is an orifice tube (te factory dash air).. takes some finesse to get it burly cold .