Carrier 17/19EX - Manual (Page 133)

5. If no leak is found during initial start-up procedures, complete the transfer of refrigerant gas
(see Pumpout and Refrigerant Transfer Procedures section.)
6. If no leak is found after a retest:
a. Transfer the refrigerant to the utility vessel or other storage tank and perform a standing
vacuum test as outlined in the Standing Vacuum Test section.
b. If the machine fails this test, check for large leaks (Step 2b).
c. Dehydrate the machine if it passes the standing vacuum test. Follow the procedure in the
Machine Dehydration section. Charge machine with refrigerant (see Pumpout and
Refrigerant Transfer Procedures section.)
7. If a leak is found, pump the refrigerant back into the utility vessel or other storage tank.
8. Transfer the refrigerant until machine pressure is at 18 in. Hg (41 kPa absolute).
9. Repair the leak and repeat the procedure, beginning from Step 2g to ensure a leaktight
repair. (If machine is opened to the atmosphere for an extended period, evacuate it before
repeating leak test.)