Finish a Liquid Cooling Verification

A load-bank test is not finished because the data hall was hot all afternoon. This field guide tells you how to connect an accepted liquid load bank in place of the rack, execute approved Level 1 through Level 5 commissioning scripts, and walk off the floor with seven signed verification sheets a stranger can audit.

Seven sheets govern the test: pre-connect boundary readiness, hardwired alarms, steady-state heat steps, injected failure response, emergency shutdown, cold pump curve density shifts (PG25 at 20°C vs 45°C), and CDU PID valve logic. A blank cell is a hold point. A number copied from the last hall is not a citation.

Key engineering coverage:
• ASHRAE Guideline 0 & 202 Commissioning Levels 1–5 gate separation
• Cold pump curve kinematic viscosity and density corrections for propylene glycol (PG25)
• Integrated Systems Testing (IST) black-building and loss-of-flow ride-through verification
• Seven complete, auditable field sign-off sheets