KIRLOSKAR CHILLERS PRIVATE LIMITED
A Kirloskar Group Company IOM-KAC-ENG - Page 37
a) Connect a copper tube from the pressure regulator on the dry nitrogen gas cylinder to the
refrigerant charging valve OR any other access valve available in the part OR equipment. Never
apply full cylinder pressure to the pressurizing line.
b) Open the charging valve fully.
c) Gradually increase the pressure by slowly opening the cylinder-regulating valve.
d) Observe the pressure gauge on the chiller OR part OR the equipment and close the regulating
valve when the pressure reaches test level. Refer recommended leak pressure test values
mentioned in technical specification of chillers or concern Kirloskar Chillers Pvt. Ltd.
e) Close the charging valve on the chiller OR part OR the equipment. Remove the copper tube if
no longer required.
f) After pressurizing, test for leaks with soap bubble solution.
g) Bring the chiller back to atmospheric pressure, repair any leaks found, and retest.
h) After retesting and finding no leak, vacuum and dehydrate the chiller OR part OR equipment.
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