Posted by C.Richard on September 21, 2001 at 01:47:39: via: or 66.42.116.228
In Reply to: Boosting HC-12a posted by RC on September 14, 2001 at 06:33:04:
You could use R-22 to boost it.Pressure and temp close to R-290 (propane).However, the addition of R-22 may bring in some seal compatability issues. The HC's will carry the oil great.Using propane,consider the source of it for dryness,ethane & butane.
The amount...I'd go by pressures.SEE jungle eddys How to Charge,it's pretty good.