On electric motors the drain plugs should be positioned so that drainage is easy and when an arrow indicates the drain should be mounted with the arrow pointing downwards.
Explosion-proof engine drain plugs can not be removed during the engine installation and maintenance procedure and must not obstruct engine ventilation.
It will be necessary to preserve a clearance free of ¼ of the air inlet diameter of the baffle in relation to the distance of the walls and the air used in the engine cooling must remain at room temperature and have at most the temperature indicated on the nameplate of the engine.
For environments with high water condensation and motors CL5023A with IP55 degree of protection, the drains can be mounted in the open position. For motors with protection rating IP56, IP65 or IP66, the drains will remain in the closed position, and will be opened only for engine maintenance.
Electric motors with rubber drain plugs are shipped from the factory and must be constantly opened to ensure condensed water is released.
Engines with Oil Mist type lubrication should have their drains connected to a specific collection system.