Transcription of 9780 ThermBrochure (Page 23 - 24)
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22 ThermaflexInstallation Instructions Complies with UL-181 RequirementsSplicing Two Lengths ofThermaflex Insulated end of excess material from ends of wire to liners on standard 4"metal sleeve to butt join andapply two wraps of duct tape*.Finish seal with clamp*. insulation in smoothplies over spliced loose barrier seam insmooth plies over two wraps of duct tape*. splicing Two Lengths of Non-Insulated excess material ends of wire to mastic* to a depth of 2inches (minimum) inside ductliner duct end with adhesive toform butt joint on 4" duct clamp* and allowjoints to Insulated Duct to Fitting Medium to duct to liner onto two wraps of duct tape*over liner to fitting duct tape* is not used,apply mastic* to fitting and slideliner at least 2 inches.
Thermaflex 22 Installation Instructions Complies with UL-181 Requirements Splicing Two Lengths of Thermaflex Insulated Ducts 1. Expose end of liner. 2.
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