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WAC 296-150C-1480

Ventilation and indoor air quality definitions.

The International Mechanical Code, current edition, and the following definitions apply to the commercial coach ventilation and indoor air quality rules in this chapter.
"Duct" is a conduit or passageway for conveying air to or from heating, cooling, air conditioning, or ventilation equipment, not including the plenum.
"Plenum" is an air compartment that is part of an air-distributing system to which one or more ducts are connected.
A furnace-supply plenum is a plenum attached directly to, or an integral part of, the air-supply outlet of the furnace.
A furnace-return plenum is a plenum attached directly to, or an integral part of, the return inlet of the furnace.
"Vent connector" is a pipe for conveying products of combustion from a fuel-burning appliance to a vent.
"Water heater" is an appliance for heating water for domestic purposes other than for space heating.
[Statutory Authority: Chapter 43.22 RCW. WSR 12-15-061, § 296-150C-1480, filed 7/17/12, effective 9/1/12. Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. WSR 96-21-146, § 296-150C-1480, filed 10/23/96, effective 11/25/96.]
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