Variance considerations related to submerged closed loop heat exchanger systems added.

A bill for an act

relating to health; adding variance considerations related to submerged closed loop

heat exchanger systems; proposing coding for new law in Minnesota Statutes,

chapter 103I.

BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF MINNESOTA:

Section 1.

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[103I.2091] SUBMERGED CLOSED LOOP HEAT EXCHANGER

SYSTEM; VARIANCES.

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Subdivision 1.

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Variance.

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In addition to any variances considered under Minnesota Rules,

part 4725.0410, to the isolation distance requirements under Minnesota Rules, part 4725.4450,

for a water supply well containing a submerged closed loop heat exchange, the commissioner

shall consider request for a variance for a water supply well containing a submerged closed

loop heat exchanger for the sole purpose of heating and cooling if the applicant demonstrates

that strict compliance with the isolation distance requirement would impose an undue burden

on the applicant's ability to design and install an effective submerged closed loop heat

exchanger system. In evaluating variance requests, the commissioner shall consider factors

critical to the effective design and operation of the submerged closed loop heat exchanger

system, including but not limited to the need for adequate spacing between submerged

closed loop heat exchanger wells to optimize thermal performance and the necessity of

minimizing lateral piping lengths to reduce energy loss and improve system efficiency.

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Sec. 2.
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REVISOR INSTRUCTION.
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In Minnesota Statutes the revisor of statutes shall renumber section 103I.208, subdivision

3, as section 103I.2091, subdivision 2, and shall appropriately revise any statutory

cross-references consistent with that recoding.

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