Whirlpool 9760266 Venting Requirements, Installation Clearances, Venting Methods

Installation Clearances

7"

(17.8 cm)

2" (50.1 cm)

min.

6¹⁄₄" (15.9 cm)

Venting Methods

This canopy hood is factory set for venting through the roof or wall.

A 6" (15.2 cm) round vent system needed for installation (not included). The hood exhaust opening is 6" (15.2 cm) round.

NOTE: Flexible vent is not recommended. Flexible vent creates back pressure and air turbulence that greatly reduces performance.

	7"
	(17.8 cm)
		16"
		(40.6 cm)
side		min.
cabinet

vent and power

supply cable entry

location

side

cabinet

Vent system can terminate either through the roof or wall. To vent through a wall, a 90° elbow is needed.

For non-vented (recirculating) installations see “Vent Installations, Non-vented (recirculating) installations” in “Prepare Location” section.

roof cap deflector

30" (76.2 cm) or

36" (91.4 cm)

minimum

30" to 36"
(76.2 cm to 91.4 cm)
	centerline
bottom of canopy to
cooking surface

6"

(15.2 cm)

round vent

6"	6"
(15.2 cm)	(15.2 cm)
round vent	round vent

wall cap

Venting Requirements

■Vent system must terminate to the outside.

■Do not terminate the vent system in an attic or other enclosed area.

■Do not use 4" (10.2 cm) laundry-type wall caps.

■Use metal vent only. Rigid metal vent is recommended. Do not use plastic or metal foil vent.

For the most efficient and quiet operation:

■Use a straight run or as few elbows as possible.

■Use no more than three 90° elbows.

■Make sure there is a minimum of 24" (61 cm) of straight vent between the elbows if more than one elbow is used.

■Do not install two elbows together.

■Use duct tape to seal all joints in the vent system.

■Use caulking to seal exterior wall or roof opening around the cap.

Cold weather installations

An additional backdraft damper should be installed to minimize backward cold air flow and a nonmetallic thermal break to minimize conduction of outside temperatures as part of the vent system. The damper should be on the cold air side of the thermal break.

The break should be as close as possible to where the vent system enters the heated portion of the house.

Make up air

Local building codes may require the use of make-up air systems when using ventilation systems greater than specified CFM of air movement. The specified CFM varies from locale to locale.

Consult your HVAC professional for specific requirements in your area.

Roof venting	Wall venting	Non-vented
		(recirculating

Calculating Vent System Length

To calculate the length of the system you need, add the equivalent feet (meters) for each vent piece used in the system.

Vent piece	6" (15.2 cm) round
45° elbow	2.5 feet
	(0.8 m)
90° elbow	5.0 feet
	(1.5 m)

Maximum equivalent vent length is 35 feet (10.7 meters).

90° elbow 6 ft. (1.8 m) wall cap

						Example vent
							system
			1	— 90° elbow	=	5 ft.	(1.5 m)
2	ft.
(0.6 m)			8 ft. (2.4 m) straight		=	8 ft.	(2.4 m)
		1		— wall cap	=	0 ft.	(0 m)
			system length		=	13 ft.	(3.9 m)

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