Coil-type water boilers, where the water can flash into steam when released directly to the atmosphere through a manually operated nozzle, are exempt from ORS 480.510 to 480.665 if the following conditions are met:

1. (1) There is no drum, header, or other steam space;
2. (2) No steam is generated within the coil;
3. (3) Tubing outside diameter does not exceed one inch;
4. (4) Pipe size does not exceed NPS 3/4;
5. (5) Nominal water capacity does not exceed six gallons;
6. (6) Water temperature does not exceed 350° F;
7. (7) Adequate safety relief valves and controls are provided.

Statutory/Other Authority

ORS 480.560

Statutes/Other Implemented

ORS 480.560

History

BCA 36-1993, f. 12-30-93, cert. ef. 1-1-94, Renumbered from 918-225-0096
BCA 30-1991, f. & cert. ef. 9-9-91
BCA 19-1991(Temp), f. 6-14-91, cert. ef. 6-15-91