Miele T 640 Manuale di istruzioni per l'uso - Pagina 31

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Table II

Effective duct length

0 - 20 m

20 - 30 m

30 - 43 m

43 - 60 m

Flexible ducting has been used for the

following example. See Table I for addi-

tional duct length factors for other

types of ducting.

Internal diameter

100 mm

110 mm

120 mm

130 mm

Installation - venting

Example:

Side connection, left . . . . . . . . . 2.00 m

Length (L) . . . . . . . . . . . . . . . . . 1.20 m

Lower radius (R) . . . . . . . . . . . . 0.50 m

Height (H) . . . . . . . . . . . . . . . . . 1.00 m

Upper radius (R) . . . . . . . . . . . . 0.50 m

Wall pipe with louvred vent . . . . 3.80 m

Effective duct length . . . . . . . . . 9.00 m

Result:

A duct diameter of 100 mm is adequ-

ate since the effective length is less

than 20 m as specified in Table II.