Charge Refrigerant into Ma chine
The standard 19XL machin e will have the refrigeran t already charged in the v es s e ls. The
19XL may be ordered with a nit rogen holding charge of 15 psig (103 kPa). Evacua te the entire
machine, and ch arge machine fro m refrigerant c ylinders.
19XL Machine Equalization without Pumpout Unit
CAUTION CAUTION
!
The transfer, addition , or removal of refrigerant in spri n g isolated machines may
place severe stress on external piping if springs have not been blocked in both
up and down directions.
When equalizing ref ri gerant pressure on the 19X L machine after service wo rk o r
during the initial machine start-up,
do not use the discharg e isolation valve to
equalize
. The motor cooling isolation valve or charging hose (connected between
pumpout valves on top of cooler and con de ns er ) is t o be us e d as t he e qua li z ati on
valve.
WARNING !WARNING