Calcul de la longueur effective du circuit d'évacuation

Pour calculer la longueur effective du circuit d'évacuation nécessaire, additionner les longueurs équivalentes (pieds/mètres) de tous les composants utilisés dans le système.

Système de décharge de 7" (17,8 cm)

Composant

Conduit de diamètre

 

7" (17,8 cm)

 

 

Coude à 45°

2,5 pi

 

(0,8 m)

 

 

Coude à 90°

5 pi

 

(1,5 m)

Système de décharge de 3¹⁄₄" x 10" (8,3 cm x 25,4 cm)

Composant

Coude à 90° de 3¹⁄₄" x 10"

5 pi (1,5 m)

(8,3 cm x 25,4 cm)

 

Coude plat de 3¹⁄₄" x 10"

12 pi

(8,3 cm x 25,4 cm)

(3,7 m)

 

 

Bouche de décharge murale

0 pi

de 3¹⁄₄" x 10" (8,3 cm x

(0 m)

25,4 cm)

 

Exemple de système de décharge

Bouche de décharge murale

0 pi

de 7" (17,8 cm)

(0 m)

 

 

3¹⁄₄" x 10" (8,3 cm x 25,4 cm)

4,5 pi

à 7" (17,8 cm)

(1,4 m)

Coude de 3 ¹⁄₄" x 10" (8,3 x 25,4 cm)

6 pi (1,8 m)

2 pi (0,6 m)

Bouche de décharge murale

Coude à 90° de 3¹⁄₄" x 10"

5 pi

(8,3 cm x 25,4 cm)

(1,5 m)

à 7" (17,8 cm)

Exemple de système de décharge

 

 

 

 

 

 

 

 

 

 

Bouche de

coude à 90˚

 

 

 

 

 

 

 

 

décharge murale

 

 

 

 

 

6 pi (1,8 m)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 pi (0,6 m)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Longueur maximale recommandée

= 50 pi (15,2 m)

 

 

 

 

 

 

 

 

 

 

 

 

1 - coude à 90°

 

 

 

 

 

 

 

 

= 5 pi (1,5 m)

1 - bouche de décharge murale

= 0 pi (0 m)

section droite de 8 pi (2,4 m)

= 8 pi (2,4 m)

 

 

 

 

 

 

 

 

 

 

 

 

Longueur du système de dia.

= 13 pi (3,9 m)

7" (17,8 cm)

 

 

 

 

 

 

 

 

 

 

Longueur maximale recommandée

= 35 pi (10,7 m)

1 - coude à 90°

= 5 pi (1,5 m)

section droite de 8 pi (2,4 m)

= 8 pi (2,4 m)

1 - bouche de décharge murale

= 0 pi (0 m)

 

 

Longueur du système de 3¹⁄₄" x 10"

= 13 pi (3,9 m)

(8,3 cm x 25,4 cm)

 

Spécifications électriques

Observer les dispositions de tous les codes et règlements en vigueur.

L'installation électrique doit satisfaire les exigences de la plus récente édition de la norme National Electrical Code, ANSI/NFPA 70, ou de la norme CSA C22.1-94, Code canadien de l'électricité, partie 1 et C22.2 N° 0-M91 (dernière édition) et de tous les codes et règlements en vigueur.

Si les codes le permettent et si on utilise un conducteur distinct de liaison à la terre, il est recommandé qu'un électricien qualifié vérifie la qualité de la liaison à la terre.

Pour obtenir un exemplaire de la norme des codes ci-dessus, contacter :

National Fire Protection Association

One Batterymarch Park

Quincy, MA 02269

CSA International

8501 East Pleasant Valley Road

Cleveland, OH 44131-5575

L'appareil doit être alimenté par un circuit de 120 V, CA seulement, 60 Hz, 15 A, protégé par fusible.

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