1995-01-02 - Laserfiche WebLink

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` L • (2) Piping connected to the assembly shall not be used for electrical grounding. (3) Piping connected to the assembly shall be thoroughly flushed before installing the assembly. (4) An adequate and permanent method of test water disposal shall be provided. (5) A pressure relief valve shall be properly installed and maintained on all water heating apparatus served by the assembly. (6) The assembly installation shall be protected from vandalism and freezing. Heating and electrical wiring detail shall be similar or equal to "Hot Box". (7) Adequate support, excluding water lines, shall be provided for assemblies that are 3" or larger. (8) If not part of the approved assembly, an approved strainer shall be installed on the inlet side of the assembly prior to the assembly isolation valve, so that all water must pass through the strainer immediately before entering the assembly. • (9) An approved blow-off shall be installed on stagnate flow 4-inch or larger water lines immediately after the assembly, to allow for flushing the assembly. Four-inch through ten-inch assemblies shall have a blow-off not less than 2-inches in diameter. Assemblies larger than 10-inch shall have a minimum 4-inch blow-off. Blow-offs installed in vaults shall have piping into the existing vault drain to prevent splashing. Blow-offs in vaults may also be routed above grade and away from the vault, however, a self draining feature must be incorporated to prevent freezing damage to the blow-off piping. ' (10) If the assembly cannot be installed in the prescribed manner for any reason, the proposed deviations shall be submitted to BWU for review and approval before installation. B. RPZA & DRPZA Installation (1) The assembly shall not be buried. (2) Plans will be reviewed on a case by case basis to determine whether a shelter is desirable. ® 20 i