Installation 35
Cod.nº 429043
Rev. No. 21/0519
Direct connection of the washer drain to the manifold (Fig. 3.3)
Facilities preferring this option to the open box option (recommended option) must respect the following
precautions:
Provide next to the connection point of each machine to the manifold, with a manifold ventilation outlet A
reaching the outside, set at a height of 40 in (1000 mm) and of a diameter of 2 in (50 mm).
Diameter of B manifold: refer to table on section 2.5.
The emptying of the drain trap to the sewer system is done through an open drain box (Fig. 3.3/B and C) which
prevents variations in pressure and backflow to the drain. The end of the drain trap must not be sunk in the
box.
Fig. 3.3
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