Laserfiche WebLink
1 . <br /> �,fl M-603 5 Flexible air ducts and flexible air connectors. <br /> Flexible air ducts both metallic and nonmetallic, shall complv with Sections ', <br /> 603 5 1 603 5 1 1 603 5 3 and 603 5.4. Flexible air connectors, both metallic ' <br /> and nonmetallic shall com�lv with Sections 603.5.2 throu�h 603.5.4. Flexible ' <br /> air ducts and flexible air connectors shall be used onl�in non-conditioned <br /> �aces or above suspended ceilins installations. <br /> ��) M-603 5.1.1 Duct length. Flexible air ducts shall be <br /> limited in length to 14 feet(4267 mml. <br />