Chapter 02. Computerized Monitoring System
Regulation .01 Scope.LinkCopy Citation
This chapter governs the duties of licensed stationary engineers and is to be read in conjunction with Maryland Boiler and Pressure Vessel Safety Act, Public Safety Article, Title 12, Subtitle 9, Annotated Code of Maryland.
Regulation .02 Definitions.LinkCopy Citation
A.
In this chapter, the following terms have the meaning indicated.
B.
Terms Defined.
(1)
“Competent authority” means:
(a)
The boiler manufacturer; or
(b)
If the boiler manufacturer is unavailable or defers to a jurisdictional authority:
(i)
A person designated by the Commissioner of Labor and Industry as a Deputy Boiler Inspector or a Special Boiler Inspector; or
(ii)
A professional engineer who has experience in the design, operation, and maintenance and repair of boilers.
(2)
“High level” means the level above normal considered unsafe for the operation of the boiler by a competent authority.
(3)
“High pressure” means the pressure above normal considered unsafe for the operation of the boiler by a competent authority.
(4)
“High temperature” means the temperature above normal considered unsafe for the operation of the boiler by a competent authority.
(5)
“Low level” means the level below normal considered unsafe for the operation of the boiler by a competent authority.
(6)
“Low pressure” means the pressure below normal considered unsafe for the operation of the boiler by a competent authority.
(7)
“Low temperature” means the temperature below normal considered unsafe for the operation of the boiler by a competent authority.
(8)
“Normal level” means the level considered safe for the operation of the boiler by a competent authority.
(9)
“Normal pressure” means the pressure considered safe for the operation of the boiler by a competent authority.
(10)
“Normal temperature” means the temperature considered safe for the operation of the boiler by a competent authority.
Regulation .03 Incorporation by Reference.LinkCopy Citation
Controls and Safety Devices for Automatically Fired Boilers (ASME CSD-1), published by the American Society of Mechanical Engineers, which has been incorporated by reference in COMAR 09.12.01.01-1, is incorporated by reference in this chapter.
Regulation .04 Monitors and Indicators.LinkCopy Citation
A.
For a boiler, a computerized monitoring system shall qualify as a "24-hour computerized monitoring system and automatic controls," in accordance with Business Occupations and Professions Article, Title 6.5, Annotated Code of Maryland, if it meets the requirements of this regulation.
B.
For a boiler operating at 30 to 299 horsepower, the system shall monitor and indicate:
(1)
Stack flue gas temperature;
(2)
Burner status, including “on” and “off” indicators;
(3)
Flame safety control status, including “normal” and “flame failure” indicators; and
(4)
One of the following, as applicable:
(a)
For steam boilers:
(i)
Pressure; and
(ii)
Water level; or
(b)
For hot water boilers, temperature.
C.
For a boiler operating at 300 horsepower or more, the system shall monitor, indicate, and record:
(1)
Stack flue gas temperature;
(2)
Burner status, including “on” and “off” indicators;
(3)
Flame safety control status, including “normal” and “flame failure” indicators; and
(4)
One of the following, as applicable:
(a)
For steam boilers:
(i)
Pressure; and
(ii)
Water level; or
(b)
For hot water boilers:
(i)
Pressure; and
(ii)
Temperature.
Regulation .05 Automatic Controls.LinkCopy Citation
A computerized monitoring system shall be equipped with automatic controls in accordance with whichever is more restrictive of the Maryland Boiler and Pressure Vessel Safety Act, Public Safety Article, Title 12, Subtitle 9, Annotated Code of Maryland or ASME CSD-1.
Regulation .06 Alarm.LinkCopy Citation
A computerized monitoring system shall be equipped with an alarm that will activate when:
A.
The stack flue gas reaches a high temperature;
B.
The burner status indicator indicates the burner is “off”;
C.
The flame safety control status indicates a “flame failure”; and
D.
One of the following occurs, as applicable:
(1)
For steam boilers, the:
(a)
Steam reaches low or high pressure; or
(b)
Water reaches low or high level;
(2)
For a hot water boiler operating at 30 to 299 horsepower, the water reaches low or high temperature; or
(3)
For a hot water boiler operating at 300 or more horsepower the water reaches low or high:
(a)
Pressure;
(b)
Temperature; or
(c)
Level.
Regulation .07 Automatic Shutdown.LinkCopy Citation
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.
Regulation .08 Manual Reset.LinkCopy Citation
A.
Subject to §B of this regulation, manual reset following an automatic shutdown as set forth in Regulation .07 of this chapter requires that a licensee or the licensee's designee shall physically inspect the boiler and appurtenances prior to restart.
B.
Notwithstanding §A of this regulation, the licensee shall be responsible for the safe operation of a boiler at all times in accordance with Business Occupations and Professions Article, §6.5-302, Annotated Code of Maryland.
Regulation .09 Miscellaneous Provisions.LinkCopy Citation
The Board may accept an alternate computerized monitoring system if the system is equipped with features that provide a comparable level of safety, monitoring, and control to those required by this regulation, in the opinion of the Board.
Chapter annotations
Authority: Article 4, §4-1, Public Laws of Baltimore City
History: Effective date: December 27, 2010 (37:26 Md. R. 1786)