NV C-1A Boilers Practice Questions - Nevada C-1A Boilers Contractor Examination Exam

It relieves pressure at 30 psi in place of the ASME relief valve. It automatically admits makeup water to maintain the cold-fill pressure, typically around 12 psi on residential systems. It meters fuel oil to the nozzle at 100 psi. It reduces chimney draft to 0.02 inch WC.