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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
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Used on live Australian projects

DynafixTreu Construct
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Pipe Installation

Requires sign-off
P/F
Pipe sizing per manufacturer line sizing charts
P/F
Pipe support spacing per copper tube guidelines
P/F
Pipe ends sealed and nitrogen purge during brazing
Hold
P/F
Oil traps provided at vertical risers
P/F
Suction line slope back to compressor

Brazing Quality

Requires sign-off
P/F
Visual inspection of braze joints satisfactory
P/F
Nitrogen purge confirmed during brazing
Witness
P/F
All joints accessible for inspection

Pressure Testing & Insulation

Requires sign-off
P/F
Nitrogen pressure test at design pressure for 24hrs
Hold Witness
#
Test pressure (kPa)
P/F
Insulation thickness per specification
P/F
Insulation joints sealed and vapour-tight

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