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VGZ-018 / 051809.0 NORSEMAN™ 1500/2500 FURNACE / Page 21
Fig. 21 – Add-on
Plenum Backdraft
Flapper
INSTALLATION ARRANGEMENTS continued …
Fig. 20 – Add-on
Optional Plenum
Collector
NOTE: To prevent damage from overheating, Backdraft Dampers MUST be used and
installed no closer than 18 inches to the top surface of the furnace.