IPSO T30 User Manual download pdf (Page 13)

Tumblers – T30 and T45

4-08-43

Exhaust Requirements

Layout

Whenever possible, install tumblers along an outside

wall where duct length can be kept to a minimum, and

make-up air can be easily accessed. Elbows and long

vents tend to increase drying time. Construction must

not block the airflow at the rear of the tumbler. Doing

so would prevent adequate air supply to the tumbler’s

combustion chamber.

Make-Up Air

A tumbler is forced air exhausted and requires provisions

for make-up air to replace air exhausted by the tumbler.

IMPORTANT: Do not obstruct the flow of

combustion and ventilation air.

Make-up air openings should be as close to the

tumbler(s) as possible.

The required make-up air opening to the outside for

each

tumbler (includes both pockets) is:

220 square inches (1418 sq. cm) for T30 models

288 square inches (1856 sq. cm) for T45 models

Make-up air openings with louvers will restrict

airflow. The opening must be increased to compensate

for area taken up by louvers.

Make-up air openings for a room containing

tumbler(s) and/or gas fired hot water heater or other

gravity vented appliances must be increased

sufficiently to prevent downdrafts in any of the vents

when all tumblers are in operation. Do not locate

gravity vented appliances in the same room as

tumblers. If it is necessary to duct make-up air to the

tumbler(s), increase the area of the ductwork by 25%

to compensate for any restriction in air movement.

Venting

IMPORTANT: Installing in-line filters or lint

collectors will cause increased static pressure.

Failure to maintain the secondary lint system will

decrease tumbler efficiency and may void machine

warranty.

For maximum efficiency and minimum lint

accumulation, tumbler air must be exhausted to the

outdoors by the shortest possible route.

Proper sized exhaust ducts are essential for proper

operation. All elbows should be sweep type. Exhaust

ducts must be assembled so the interior surfaces are

smooth, so the joints do not permit the accumulation

of lint. DO NOT use plastic or thin foil ducts – rigid

metal ducts are recommended. Use exhaust ducts

made of sheet metal or other noncombustible material.

DO NOT use sheet metal screws or fasteners on

exhaust pipe joints which extend into the duct and

catch lint. Use of duct tape or pop-rivets on all seams

and joints is recommended, if allowed by local code.

Verify that old ducts are thoroughly cleaned out before

installing new tumbler(s).

NOTE: Exhaust ducts must be constructed of sheet

metal or other noncombustible material. Such

ducts must be equivalent in strength and corrosion

resistance to ducts made of galvanized sheet steel

not less than 0.0195 inches (0.495 mm) thick. Local

codes may require additional thickness.

Where the exhaust duct pierces a combustible wall or

ceiling the opening must be sized per local codes. The

space around the duct may be sealed with

non-combustible material. Refer to Figure 2.

WARNING

A drying tumble dryer produces

combustible lint. To reduce the risk of

fire, the tumble dryer must be exhausted

to the outdoors.

W057R1

To reduce the risk of fire and

accumulation of combustible gases, DO

NOT exhaust tumble dryer air into a

window well, gas vent, chimney or

enclosed, unventilated area such as an

attic wall, ceiling, crawl space under a

building, or concealed space of a

building.

W059R1

WARNING

To reduce the risk of fire due to increased

static pressure, we do not recommend

installation of in-line secondary lint filters

or lint collectors. If secondary systems

are mandated, frequently clean the

system to assure safe operation.

W749

WARNING

Improperly sized or assembled ductwork

causes excess back pressure which

results in slow drying, lint collecting in

the duct, lint blowing back into the room,

and increased fire hazard.

W355

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IPSO T30 User Manual Page 13

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