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Wiring duct booster – Tjernlund DB-2 Duct Booster 8504030 Rev B 09/00 User Manual

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INSTALLATION (Tools Required)

DRILL

1/4” NUT RUNNER

5/16” DRILL BIT

1/4” WRENCH

SCREW DRIVER

TIN SNIPS

NOTE: If installing the DUCT BOOSTER® on a flat duct, the housing
flanges will have to be bent at a 90

O

angle before inserting DUCT

BOOSTER® into duct. This will allow screws to better align with the
speed clips provided.

1. Opening should be cut in the bottom or top of a horizontal duct or any side of

a vertical duct. The motor shaft will then be in the horizontal position. Apply
the mounting template provided to the duct, cut opening and drill four 5/16”
holes noted on template.

WIRING DUCT BOOSTER

®

IN PARALLEL WITH HEAT CYCLE

OR COOLING/BLOWER “ON” CYCLE