# COMAR Title 09 — Maryland Department of Labor

## Subtitle 17 — Board of Stationary Engineers

### Chapter 02 — Computerized Monitoring System

#### Regulation .07 Automatic Shutdown.

*COMAR 09.17.02.07*

A computerized monitoring system shall be equipped with an automatic burner shutdown mechanism that will activate when:

A. Stack flue gas reaches high temperature; and

B. One of the following occurs, as applicable:

  (1) For a steam boiler:

    (a) Steam reaches high pressure; or

    (b) Water reaches Low or high level;

  (2) For a hot water boiler operating at 30 to 299 horsepower, water reaches high temperature; or

  (3) For a hot water boiler operating at 300 or more horsepower, water reaches:

    (a) High pressure;

    (b) High temperature; or

    (c) Low level.