Minnesota Administrative Rules

7685.0120 DEFINITIONS.

Subpart 1.

Scope.

The definitions in this part apply to parts 7685.0100 to 7685.0140.

Subp. 2.

CFC.

"CFC" means a chlorofluorocarbon refrigerant.

Subp. 3.

Commissioner.

"Commissioner" means the commissioner of commerce.

Subp. 4.

Cooling efficiency.

"Cooling efficiency" means an expression of energy or energy performance in items A to C.

A.

Kilowatts per ton (kW/ton) is the total electrical input (kW) divided by the net cooling capacity (in tons).

B.

Coefficient of performance is the net cooling capacity divided by the energy input rate, when both are expressed in the same unit of measure.

C.

One ton of cooling capacity equals 12,000 Btu's per hour, or 3.516 kilowatts.

Subp. 5.

Once-through cooling system.

"Once-through cooling system" means a once-through system that has been issued a permit by the Department of Natural Resources to use in excess of 5,000,000 gallons of water annually from a groundwater source.

Subp. 6.

Once-through system.

"Once-through system" means a space heating, ventilation, air conditioning (HVAC), or refrigeration system used for any type of temperature or humidity control application, using groundwater that circulates through the system and is then discharged without reusing it for a higher priority purpose.

Statutory Authority:

MS s 446A.21

History:

18 SR 1443; L 2001 1Sp4 art 6 s 1

Published Electronically:

January 19, 2005