Whirlpool RH8330 SERIES Kurulum Talimatları ve Kullanım ve Bakım Kılavuzu - Sayfa 3

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Venting requirements

Venting system must terminate to the

outside.

Do not terminate the vent in an attic or

other enclosed space.

Do not use four-inch laundry-type wall

caps.

Do not use plastic vent.

Vent system needed for installation is not

included.

It is recommended that the wall or roof cap

used have a backdraft damper. If it does,

remove the damper from the range hood

exhaust connection supplied with the hood.

Determine which outside venting method

you need to use.

The length of the vent system and number

of elbows should be kept to a minimum to

provide efficient performance. The size of

the vent system should be uniform. Do Not

install two elbows together. Use duct tape

to seal all joints in the vent system. Vent

system 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 hood be

vented vertically through the roof using 7"

round vent system.

Flexible metal vent is Not recommended. If it

is used, calculate each foot of flexible

metal vent as two feet of straight metal

vent. Flexible metal elbows count twice as

much as standard elbows. Use metal

ventwork only.

Figures 1-4 show common venting methods

and what types of materials are needed.

Vertical roof venting

7" round

through roof

damper located

as far from hood

as possible

66"

Figure 1

Vertical roof venting

3-1/4" x 10"

through the roof

66"

Figure 2

Panel B

Horizontal wall venting

3-1/4" x 10"

through the wall

66"

Recommended roof venting

7" min. diameter

round vent

3-1/4" x 10" to round

vent transition

Recommended vent system lengths

for venting an electric indoor grill

Indoor electric grills produce more smoke

than normal cooking and require at least

410 CFM to provide adequate ventilation.

Horizontal wall venting

roof cap

Use maximum of two feet of 3-1/4" x 10"

vent with a wall cap and a free discharge

area of 66 square inches. There should be

no elbows in vent system between range

hood and wall cap.

Vertical roof venting

Use maximum of four feet of 3-1/4" x 10"

vent terminating with a roof cap and with

a free discharge area of at least 66 square

inches.

If longer vent system is required, the

shortest possible ventwork length should be

used to ensure the maximum CFM of air

movement for best venting. A transition to

round must be used as close to the hood

as possible to eliminate the restriction

caused by 3-1/4" x 10" vent. 45° elbows

should be used instead of 90° elbows

wherever possible. A roof cap providing a

free area of 113 square inches is

recommended.

Check the length of vent system used with

lengths given in the chart to make sure

roof cap

vent system length does not exceed static

pressure of .25.

Static pressure vs. vent system length

Static

pressure

.06

.10

3-1/4" x 10"

.15

damper

.20

.25

90° elbow

45° elbow

wall cap

Figure 3

roof cap

Figure 4

Equivalent vent system length (f t.)

CFM

3-1/4" x 10"

7" dia.

8" dia.

9" dia.

460

440

417

390

111

355

5-1/2

2-1/2

Now start...

With range hood in kitchen.

Slide cardboard or hardboard under range

before moving range across floor to

prevent damaging floor covering.

Cover countertop, cooktop or set-in range

with a thick, protective covering to prevent

damaging countertop.

Determine which venting method,

roof or wall hood venting, you

need to use. The range hood comes

shipped for venting through the roof.

Disconnect and move

freestanding 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. A protective covering will

also be needed to set range hood on while

getting it ready for installation.

Determine and clearly mark a

vertical centerline on the wall and

cabinet in the area the vent opening will

be made.

7-1/2"

To wire through top, mark a line

7-1/2" from the right of the

centerline on the underside of the cabinet.

Mark the point on this line that is 1-3/8" from

back wall. Drill a 1-1/4" diameter hole

through the cabinet at this point. Note: If a

cord-connection kit is used, drill a 1-5/8"

diameter hole.

To wire through rear, mark a line 7-1/2" from

the right of the centerline on the wall. Mark

the point on this line that is 1-3/8" from

underside of cabinet. Drill a 1-1/4" diameter

hole through wall at this point.

centerline

1-3/8"

(from

wall)

centerline

1-3/8"

7-1/2"

centerline