The Air Intake plate must be adjusted down to the lowest position when venting over 15 ft. vertical.
NOTE: Unit comes preset for short horizontal or vertical venting under a 15 feet run.
Follow these instructions when venting exceeds 15 foot run.
1. Locate the 3 x 1/4" hex screws and using a nut driver loosen the screws 1 turn.
2. Lower the Air Adjustment Plate as shown in the diagrams. (Fully Down Position).
3. Tighten the 3 x 1/4" hex screws.
Vertical Venting over 15 Feet
15ʼ OR OVER VERTICAL VENTING
AIR INTAKE ADJUSTMENT PLATE
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