INSTALLATION INSTRUCTIONS
Calculate the effective duct length
The overall duct length will determine the duct diameter.
^Measure the actual duct length needed:
1.Establish the number of elbows or bends necessary, noting the type of bend, angle and radius involved (see, Table 1).
2.Add the additional duct length as specified in Table 1 to the actual duct length to get the effective duct length.
3.The necessary duct diameter can then be found in Table 2.
Note:
Drying times and energy consumption remain unaltered for 4" (100 mm) duct up to a total length of 66 ft. (20 m). Lon- ger ducts may lead to slight increases, but, the function will not be impaired as long as the necessary duct diameter is used (Table 2).
Table 1
Type | Angle | Radius | Additional | ||||
of bend |
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| duct length | ||
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| inch |
| cm | inch |
| cm |
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Flexible | 90 ° | up to |
| 40.6 | 20" |
| 50.8 |
metal duct |
| 16" |
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| 45 ° | up to |
| 40.6 | 12" |
| 30.5 |
|
| 16" |
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Smooth | 90 ° | 4" |
| 10 | 14" |
| 35.6 |
metal duct |
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Elbow 90° | 90 ° |
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| 90" |
| 228.5 |
sharp; |
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no radius |
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Concertina | 90 ° | 8" |
| 20.3 | 28" |
| 71.1 |
bend |
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Wall vent kit |
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| 142" |
| 360.7 |
with louvres |
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or |
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window |
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vent kit |
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Wall vent kit |
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| 99" |
| 251.5 |
with flap or |
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window |
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vent kit |
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Exhaust |
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| 193" |
| 490.2 |
connection |
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left side |
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Table 2
Internal diameter or |
| Effective duct | ||
edge length |
| length | ||
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|
inches | mm |
| ft | m |
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|
4" | 100 | 0 | - 66 | 0 - 20 |
5" | 125 | 66 | - 100 | 20 - 30 |
6" | 150 | 100 - 140 | 30 - 42.7 | |
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