
Plan installation to use the fewest number of elbows and turns.
AB
Exhaust Air Flow
A.Good
B.Better
Allow as much room as possible when using elbows or making turns. Bend vent gradually to avoid kinking.
Vent outlet is located at the center of the bottom dryer back.
The vent can be routed up, down, left, right, behind the dryer, or straight out the back of the dryer.
Vent System Length
Maximum length of vent system depends upon the type of vent used, number of elbows, and type of exhaust hood.
Maximum Vent Length
102 mm (4") Diameter Exhaust Hoods
Rigid Metal Vent
Each vent should enter the main vent at an angle pointing in the direction of the airflow. Vents entering from the opposite side should be staggered to reduce the exhausted air from interfering with the other vents.
The maximum angle of each vent entering the main vent should be no more than 30°.
A
30° max.
air flow |
|
| B | |
| ||||
|
|
|
|
|
A. Individual dryer vent
B. Main vent
Keep air openings free of dry cleaning fluid fumes. Fumes create acids which, when drawn through the dryer heating units, can damage dryers and loads being dried.
A
If an exhaust hood cannot be used:
B
A | C |
D
No. of 90° turns | Box Hood and Louvered Style | Angled Hood Style |
|
|
|
0 | 19.5 m (64 ft.) | 17.7 m (58 ft.) |
1 | 16.5 m (54 ft.) | 14.6 m (48 ft.) |
2 | 13.4 m (44 ft.) | 11.6 m (38 ft.) |
3 | 10.7 m (35 ft.) | 8.8 m (29 ft.) |
4 | 8.2 m (27 ft.) | 6.4 m (21 ft.) |
If dryer is installed in a confined area, such as a bedroom, bathroom, or closet, provision must be made for enough air for combustion and ventilation. (Check governing codes and ordinances.) See “Recessed Area and Closet Installation Instructions” in the “Location requirements” section.
Min. 30 cm (12") clearance above any accumulation of snow, ice, or debris such as leaves.
C
A. Exhaust hood or elbow
B.Wall
C.Main collector vent
D.Horizontal vent
E.180° sweep elbow
F.Vertical vent
G.Roof
| E |
| 61 cm (24") min. |
| above highest |
F | point of building |
| G |
A 10.2 cm (4") outlet hood is preferred. However,a 6.4 cm (21⁄2") outlet exhaust hood may be used. A 6.4 cm (21⁄2") outlet creates greater back pressure than other hood types. For permanent installation, a stationary vent system is required.
Multiple Dryer Venting
■A main vent can be used for venting a group of dryers. Main vent should be sized to remove 5663 l/min (200 CFM) of air per dryer.
■
Unobstructed air openings are required.
The outside end of the main vent should have a sweep elbow directed downward. If the main vent travels vertically through the roof, rather than through the wall, install a 180° sweep elbow on the end of the vent at least 61 cm (2 ft.) above the highest part of the building. The opening in wall or roof shall have a diameter 13 mm (1⁄2") larger than the vent diameter. The vent should be centered in the opening.
Do not install screening or cap over the end of the vent.
6