A.3:6.1 - Physical system — Cooling loop

The world-side occurrence run-2025-08-08-T14:03 is independently admitted under U.Work through A.13/A.15.1 with PumpUnit#3 as performer and an actual enactsMethod relation to CirculateCoolingFluid@CoolingLoop. If the receiving use also needs attribution under the same U.SystemRoleAssignment occurrence, cite its obtaining F.6 performedUnderAssignment relation. Cite centrifugal_pump_curve.ld when this Work claim relies on its content. Treat its claim-bearing episteme as a U.MethodDescription only if A.3.2 establishes that its EntityOfConcern is CirculateCoolingFluid@CoolingLoop and that it makes a substantive claim about that Method as a way of doing. A separately obtaining resource-use relation connects the Work individual to the 3.6 kWh use; the measured ΔT=6 K and any actual fluid change remain separately governed measurement, transformation, and work-to-change claims.