Manual

29
(6) Inspecting for leaks in the fill-tub plumbing
❈ If pressure leaks are discovered, run the test again after fixing the leaky areas.
• Do not apply additional pressure to the equipment.
➀ Install a valve on one end of the fill-tub plumbing. (Valve open.)
➁ Install a booster pump on the other end to feed water into the fill-tub plumbing.
➂ Once the air has been removed from the fill-tub plumbing and it has been filled with water, close the installed valve.
➃ Inspect for leaks.
Inspection pressure and time: 43.5 psi (0.30 MPa) for five minutes or longer.
• Use a pressure meter that suits the pressure being checked when inspecting the pressure.
• Be sure that there are no leaks or pressure drops across the gauge.
❈ Do not apply pressure to the equipment itself.
Caution
Inspection pressure and time: 43.5 psi (0.30 MPa) for five minutes or longer.
Booster pump
Gauge