Marley Engineered Products 3638R, 2438, 3038R manual FAN Size Dimensions Wall Opening Size

STEP 5—Position fan on frame and secure with (4) wood or lag screws (number 12 x 1 1/2” preferred) through holes drilled in STEP 4.

	DOUBLE 2 X 6
	HEADER
	SECURE UNIT IN PLACE
	WITH 2” X 2” FURRING
SEE	STRIPS INSIDE.
CHART	2 X 4 FRAMING

SECURE UNIT IN PLACE

OUTSIDE WITH MOULDING

FIG. 4 FIG. 5

STEP 6—Unpack shutter and read the instructions included. Carefully follow these instructions to adjust the spring tension on your shutter. Make sure the shutter opens and closes freely.

STEP 7—Stand assembly upright with motor at top and position shutter on outside of frame. Secure shutter with (8) wood or lag screws (number 12 x 1” preferred) through holes in shutter frame. See Fig. 3.

STEP 8—To mount this attic fan in gable or wall, a box must be framed into wall construction as shown in Fig. 4. See wall open- ing in chart.

FAN SIZE	“A” & “B” DIMENSIONS	WALL OPENING SIZE
30”	33 3/4” x 33 3/4”	34” x 34”
36”	39 3/4” x 39 3/4”	40” x 40”

STEP 9—Insert frame containing fan and shutter assembly into opening with outside surface of shutter frame flush with outside surface of wall.

STEP 10—Nail frame assembly securely in place. Moulding may be used outside to improve appearance, as shown in Fig. 5. Caulk around moulding to provide a water-tight seal. Follow wiring instructions on pages 11 & 12.

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