Whirlpool 35-718, 29-718 Now start, Vented installation, Venting requirements

Venting requirements

Fire Hazard

l Terminate venting system to outside.

. Do Not terminate the vent in an atlic or other enclosed space.

Failure to follow these instructions could result in a fire.

Ductwork needed for installation is not included. If roof or wall cap has a damper, Do Not use damper supplied with hood.

Determine which outside venting method needs to be used. NOTE: If a non-vented (recirculating) installation is desired, follow instructions on Panel D.

The length of the ductwork and number of elbows should be kept to a minimum to provide efficient performance. The size of the ductwork should be uniform. Do Not install two elbows together. Use duct tape to seal all joints in the ductwork system. Ductwork can terminate either through the roof or wall. Use caulking to seal exterior wall or roof opening around exhaust hood. For the most efficient and quiet operation, it is recommended that the range be vented vertically through the roof through 7” round ductwork.

Figures l-4 show common venting methods and what types of materials are needed.

Vertical Roof Venting

roof coo

7” round through the roof -

damper located as far from hood as possible

Figure 1 1

round ductwork

elbow

3-l/4” x 10” to round ductwork transition

Figure 4

Recommended ductwork length

Use 3- l/4” x lo” or 7” ductwork with a maximum length of 26 feet for ductwork system. For best performance, use no more than three 90” elbows. To calculate the length of system you need, add the equivalent feet for each ductwork piece used in the system. See the following examples.

3- l/4” x lo” ductwork system

+-	6 ft. 4
I	lb--	wall cap

I

Length of

3-1/4”xl0”system = 13ft

Recommended standard fittings

-

3-114” x IQ” 90”	3-l/4”	x IO” flat	3-114”	x 10” wall
Ielbow = 5 ft.	elbow	= 12 ft.	I cap=oft.	I

7” ductwork system

3-l/Lx lo” Maximum length = 26 feet

Now start...

With range hood in kitchen.

Property Damage

l Slide cardboard or hardboard under range before moving range across floor.

Failure to do so could cause damage to floor covering.

l Cover countertop, cooktop or set-in range with a thick, protective covering.

Failure to do so may result in property damage.

1 Disconnect and move freestanding n range from cabinet opening to

provide easier access to upper cabinet and rear wall. Put a thick protective covering over cooktop, set-in range or countertop to protect from damage or dirt.

2 Determine which venting method I (roof or wall venting or non-venting)

you need to use. This range hood is shipped for non-vented installation.

If non-venting (recirculating) installation is desired, follow instructions on Panel D.

Vented installation

Remove screws from vent baffle on top of range hood. Remove vent baffle.

-

4.

Vertical Roof Venting

3-114” x 10” through the roof

Figure 2

roof cap

lo”

1

to 7”	1 -	transition	=	4.5ft.
transition	2 -	90” elbows	=lO		ft.
	8 feet straight		=	8	ft.
	l-	wall cap	=	0	ft.
	Length of 7” system		= 22.5 ft.

Recommended standard fittings

Turn vent baffle and reinsert in slot in top of range hood so that the word “Vented” is facing up, Fasten vent baffle with screws.

knockouts

knockouts

Remove knockout from the wiring opening (top or rear) to be used.

Horizontal Wall Venting

Figure 3 ’

For rectangular venting, remove only the 3-l /4” x 10” rectangular opening knockout.

For round ductwork venting through roof, remove both opening knockouts.

Panel B