HVACCommercial
Refrigeration Piping Inspection & Test Plan
ITP for refrigerant piping systems covering copper pipe brazing, nitrogen pressure testing, pipe insulation, oil traps and line sizing verification for VRF and split systems per AS/NZS 5149.
12 checklist items
2 hold points
2 witness points
Checklist Preview
Pipe Installation
Requires sign-offP/F
Pipe sizing per manufacturer line sizing chartsP/F
Pipe support spacing per copper tube guidelinesP/F
Pipe ends sealed and nitrogen purge during brazing Hold
P/F
Oil traps provided at vertical risersP/F
Suction line slope back to compressorBrazing Quality
Requires sign-offP/F
Visual inspection of braze joints satisfactoryP/F
Nitrogen purge confirmed during brazing Witness
P/F
All joints accessible for inspectionPressure Testing & Insulation
Requires sign-offP/F
Nitrogen pressure test at design pressure for 24hrs Hold Witness
#
Test pressure (kPa)P/F
Insulation thickness per specificationP/F
Insulation joints sealed and vapour-tightPrefer AI?
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