Mich. Admin. Code R. 339.5174 - Classes of boiler installer's licenses
Rule 174.
(1) A
class 1B installers license qualifies an individual to install a low-pressure
boiler that does not exceed a firing rate of 1,000,000 British thermal units
(BTU) per hour as certified by the boiler manufacturer. For a class 1B license,
the sum of all modules in a modular boiler must not exceed a firing rate of
1,000,000 BTU per hour as certified by the boiler manufacturer.
(2) A class 2B installers license qualifies
an individual to do both of the following:
(a)
Install a low-pressure boiler of any capacity or firing rate.
(b) Perform work covered by a class 1B
license.
(3) A class 3B
installers license qualifies an individual to do all the following:
(a) Install a power boiler that has a
capacity of not more than 5,000 pounds of steam per hour.
(b) Install or replace non-boiler external
piping as defined by the American Society of Mechanical Engineers (ASME), as
defined in Subpart B Part 1, code B31.1, 2018, and
R 339.5209.
(c) Perform work covered by a class 2B
license.
(4) A class 4B
installers license qualifies an individual to do all the following:
(a) Install a power boiler that has a
capacity of not more than 300,000 pounds of steam per hour.
(b) Install or replace non-boiler external
piping as defined by ASME code B31.1 and
R 339.5209.
(c) Perform work covered by a class 3B
license.
(5) A class 5B
installers license qualifies an individual to do all of the following:
(a) Install a power boiler of any capacity or
firing rate, except for a nuclear heat source boiler.
(b) Install or replace non-boiler external
piping as defined by ASME code B31.1 and
R 339.5209.
(c) Perform work covered by a class 4B
license.
(6) A class 6B
installers license qualifies an individual to install a boiler that utilizes a
nuclear heat source or its parts, appurtenances, or system components. Before a
license is issued, an individual who is applying for a class 6B license shall
submit evidence of both of the following:
(a)
Familiarity with and knowledge of all federal rules and regulations regarding
the installation of a boiler that has a nuclear heat source.
(b) Employment by a company in possession of
a valid ASME nuclear code symbol applicable to the portions of any nuclear
boiler system that the company proposes to install.
(7) A class P license qualifies an individual
to install or replace non-boiler external piping or repair non-boiler external
piping as defined by ASME code B31.1 and
R 339.5209.
Notes
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