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4725.1833 VERTICAL HEAT EXCHANGER CONSTRUCTION PERMITS.

This part applies to the construction of vertical heat exchangers.

A.

A vertical heat exchanger must not be constructed, or have piping installed or removed below the frost line, until a permit has been issued by the commissioner to the well contractor or limited well/boring contractor licensed to construct vertical heat exchangers.

B.

The well contractor or vertical heat exchanger contractor must submit to the commissioner a vertical heat exchanger permit application on a form provided by the commissioner. The application must be legible and signed by the well contractor or vertical heat exchanger contractor and the property owner or property owner's agent.

C.

A permit application must be completed for each vertical heat exchanger and must include:

(1)

the name and license number of the well contractor or vertical heat exchanger contractor;

(2)

the name and address of the owner of the property on which the vertical heat exchanger will be installed;

(3)

the township number, range number, section and one quartile, and the property street address if assigned, of the proposed vertical heat exchanger;

(4)

a plan diagram showing the location of the vertical heat exchanger borings, property lines, and structures on the property;

(5)

the geological materials expected to be encountered by the borings;

(6)

the number, diameter, and depth of all bore holes drilled to install the vertical heat exchanger piping;

(7)

the grout materials and grouting method;

(8)

the type of heat transfer fluid to be used; and

(9)

the system operating pressure.

D.

The vertical heat exchanger must be constructed within 18 months of the date the permit is issued.

History:

17 SR 2773; 18 SR 1222; 25 SR 1207; 33 SR 211

Published Electronically:

September 2, 2008

Official Publication of the State of Minnesota
Revisor of Statutes