Broan 273003 warranty PLANNING - continued, Plan The Ductwork, Specifications, Take Measurements

PLANNING - (continued)

Note: The high level of air flow of this appliance may affect the gas flame on some types of gas cooktops. This is NORMAL and will cause no harm, but can be corrected by lowering the speed of the blower.

PLAN THE DUCTWORK

SPECIFICATIONS

VOLTS	AMPS	CFM	DUCT
120	4.0	500	3-1/4 x 10

LEFT DISCHARGE

RIGHT

DISCHARGE

DOWN'

DISCHARGE (as shipped)

TAKE MEASUREMENTS

1.Refer to the cooktop installation instructions for dimensions of cooktop, countertop cut-out, and cabinet requirements. The Model 2730 will fit in most 30" wide cabinets and the Model 2736 will fit in most 36" wide cabinets. However, it is recom- mended that oversized cabinets be used for easier installa- tion.

2.Cooktop depth can vary greatly from one to another. This may cause the fit of these two appliances to be rather tight.

Pay special attention to the areas of potential interference high- lighted above. A countertop with (A) a raised lip and/or (B) a backsplash may not allow enough flat countertop for a proper installation. Note that 2" of flat countertop is required behind cooktop and that 1-3/4" is necessary between the back edge of the cooktop and the inside of cabinet back.

1.This downdraft blower system is designed for use with 3￿" x 10" ductwork (can be transitioned to 6" round). Three different discharge directions are available with side-to-side adjust- ment for accurate alignment of ductwork.

2.For best performance: Choose the ducting option which allows the shortest length of ductwork and a minimum number of elbows and transitions. Check location of floor joists, wall studs, electrical wiring or plumbing for possible interference. NOTE: The unit is shipped with the 3￿" x 10" discharge facing DOWN. See "CHANGING BLOWER DIRECTION" on page 3, if necessary.

8" ROUND	3-1/4" X 10"
ELBOW	TO 6" RD.
	TRANSITION
EQUALS 6 FT. OF	EQUALS 2
	FT. OF
STRAIGHT DUCT	STRAIGHT DUCT

3-1/4" X 10"

90O ELBOW

EQUALS 8

FT. OF

STRAIGHT DUCT

3.The system will operate most efficiently when the ductwork does not exceed 40 feet of equivalent duct. The chart, above, shows equivalent feet of elbows and transitions. The number of feet of straight duct plus the equivalent feet of transitions and/or elbows to be used should equal 40 feet or less.

NOTE: The equivalent feet of various roof and wall caps has been taken into consideration. Do not include them in this calculation.

PLAN THE WIRING

1.The downdraft and exterior blower system draws 4 AMPS and requires a 120 VAC, 60 Hz circuit.

2.Plan to provide unit with grounded wiring which meets codes:

Note: Installations in which the fit between blower system and cabinet is tight. Considerrunningthewiringthroughaadjacent cabinet to prevent sharp bends in wiring.

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