Exhaust System Maintenance

The dryer unit interior and the complete exhaust system should be inspected after one year of use and cleaned if necessary. Inspect and clean exhaust duct every one to two years as required thereafter. The weather hood should be checked frequently to make sure the dampers move freely, dampers are not pushed in and that nothing has been set against them. This maintenance work should be done by a qualified service person.

WARNING

To reduce the risk of electric shock, disconnect the electrical service to the dryer before cleaning.

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Exhausting the dryer unit in hard-to-reach locations can be accomplished by installing the 521P3 Flexible Metal Vent Kit, available as optional equipment at extra cost. The kit comes in two halves that can be separately attached to the dryer unit, the wall outlet and to each other. Once attached, the dryer can be slid back into position.

Dryer Airflow

Efficient dryer unit operation requires proper dryer airflow. Proper dryer unit airflow can be evaluated by measuring the static pressure.

Static pressure in the dryer unit’s exhaust duct should be no greater than that shown in Figure 24. (Check with dryer unit running and no load.)

NOTE: This can be measured with a manometer placed on the exhaust duct approximately 2 feet (61 cm) from the dryer unit. Refer to Figure 24.

Installation

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MAXIMUM STATIC

 

PRESSURE IN

 

WATER COLUMN

1

0.6 inches (1.5 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

MEASURING STATIC PRESSURE

D012I

1Manometer

2Exhaust Duct

Figure 24

IMPORTANT: DO NOT block the airflow at the bottom of the dryer unit’s front panel with laundry, rugs, etc. Blockage will decrease airflow through the dryer unit, thus reducing the efficiency of the dryer unit.

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