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Run: VRF Refrigerant Pressure and Vacuum Hold Test

Use this VRF refrigerant pressure and vacuum hold test template to document leak checks, triple evacuation, final micron readings, and charge readiness befor...

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Inspection Identification

Enter the project name, building, floor, and exact area where the VRF piping test was performed.
Record the date and time the pressure or vacuum hold test was completed.
Enter the inspector name, contractor name, and commissioning representative if applicable.
Reference the governing project specification, manufacturer procedure, or commissioning document used for the test.
Confirm the VRF refrigerant piping section under test is complete, isolated, and ready for pressure or evacuation testing.

System and Test Equipment

Identify the outdoor unit, indoor unit group, branch selector box, circuit number, and piping segment tested.
Select the medium used for the pressure test.
Verify the pressure measurement device used for the test is calibrated and current.
Verify the micron gauge is functional, calibrated if required by project procedure, and connected at the system location specified for evacuation verification.
Confirm vacuum pump oil is clean and at the proper level to support evacuation to the specified micron target.

Pressure Test Setup and Hold

Enter the stabilized pressure applied to the VRF refrigerant piping during the pressure test.
Enter the total pressure hold duration used for the test.
Confirm the test pressure remained stable for the full hold period with no unexplained pressure loss.
Verify the entire tested piping segment was inspected for leaks during the pressure hold period using an approved method.
Describe any leak indications, repair actions, or confirmation that no leaks were observed.

Triple Evacuation and Vacuum Hold

Confirm the first evacuation cycle was completed before breaking with dry nitrogen or as required by the project procedure.
Confirm the second evacuation cycle was completed per triple-evacuation procedure.
Confirm the third evacuation cycle was completed before final vacuum hold verification.
Enter the final stabilized vacuum reading after evacuation and hold.
Confirm the system held vacuum without a rise above the project acceptance criteria during the observation period.

Safety, Deficiencies, and Final Sign-Off

Confirm lockout-tagout, PPE, and safe work practices were used as required by the jobsite procedure and OSHA 1910.147 where applicable.
Confirm all identified leaks, test failures, or other non-conformances were corrected before sign-off.
Confirm the VRF refrigerant piping system passed pressure and vacuum hold requirements and is ready for refrigerant charging.
List any remaining corrective actions, responsible party, and target completion date if applicable.
Inspector sign-off confirming the recorded test results are accurate.

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