ASME A112.19.13-2001 pdf download.ELECTROHYDRAULIC WATER CLOSETS. 1.4 Electrohydraulic Water Closet An clcctmhydraulic water closet is a siphonic or wash.down water closet as described in ASME A1l2.l9.2M with a nenmechanical trap seal. The water closct incorporates clectncal motors). pump(si. and cornrnlkrs to facilitate the flushing action. In this Standard, the term waler ck?.wt means an electrohydraulic staler closet unless otherwise indicated....