Leak Test Machine
Due to regulations reg ar di ng refrigerant emissi ons and the difficulties as s oc i ated with
separating contamin ants from refrigerant , Ca rrier recommends the fol lowing leak test
procedures. See Figure 26 for an outline of the leak t est procedures. Refer t o Figure 27 and
Figure 28 during pumpout procedures and Table 5A, Table 5 B, Table 5C, and Tab le 5D for
refrigerant pressu r e/ temperature values.
1. If the pressure readin gs are normal for machine c on dition:
a. Evacuate the holding ch ar ge from the vessels, if pres ent .
b. Raise the machine pres s ur e, if necessary, by adding r ef rigerant until pressur e is at
equivalent saturat ed pressure for the surround ing temperature. Foll ow the pumpout
procedures in the Transferring Refrigerant from Storage Tank to Machine section,
Steps 1a - e.
Do not use air or o xygen as a means of pressu rizing the machine. Some mixtures
of HCFC-22 or HFC-134 a and air can undergo comb us tion.
WARNING !WARNING

Click here fo r Figure 26 — 19XL Leak Test Pr ocedures