### Question
How is the "small duct, high velocity system" defined?


### Answer
The term **small duct, high velocity system** is defined in *42 U.S.C. § 6295* as follows -

> a heating and cooling product that contains a blower and indoor coil combination that—


(I) is designed for, and produces, at least 1.2 inches of external static pressure when operated at the certified air volume rate of 220–350 CFM per rated ton of cooling

#### Citation:
  - *42 U.S.C. § 6295*
  - Heading: **CHAPTER 77-ENERGY CONSERVATION > SUBCHAPTER III-IMPROVING ENERGY EFFICIENCY > Part A-Energy Conservation Program for Consumer Products Other Than Automobiles**

