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14-1 SECTION 2 - 17 ELECTRIC WIRING: All electrical connections shall be made in accordance with the provisions of all Building and Electrical codes relating to the installation of electric wiring in the Village of Rosevil1e. SECTION 2 - 18 GAS PRESSl~ REGULATORS: A gas 'pressure regulator, approved by the Gas Inspector, shall be installed on the down-stream side of the pilot supply on all gas burners, and a pressure regulator and pilot filter shall be installed in all pilot lines, downstream from the pi10t shut-off cock, on all burners. Pressure regulators and pilot filters shall be of types listed for approval by the American Gas Association and shall be apprc'Ved by the Gas Inspector. . . SECTION 2 - 19 LIMITING DEVICES: , The boiler or furnace shall be equipped with safety devtces arranged to li.mit high steam pressures or water temperatures, as well as high air tempera- tures in warm air furnaces, and all such devices shall be subj ect to the approval of the Gas Inspector. SECTION 2 - 19.1 Each gas fired steam boiler shall be equipped with a low-water cut-off, approved by the Gas Inspector. SECTION 2 - 19.2 Safety devices operated electrically shall not depend upon the closing of a circuit to shut off the'main gas supply. Thi! requirement shall not be construed as prohibiting the use of electrical regulating devices, provided the required safety devices are also installed. Controls shall be so connected that maximum inherent safety provided by such controls will be attained. SECTION 2 - 20 SAFETY SHUT-OFF VALVES: Safety shut-off valves if used shall be tested to assure gas tightness of the seat when in the closed position; the valve assembly shall be gas tight in all positions. Packing glands shall be designed so tha.t the valve will not be made inoperative by excessive tightening of the packing nut. Either the valve shall incorporate means for requiring manual operation for re-opening of the valve after it has closed or the electrical circuit shall be so arranged as to require' a manual operation to re-open the valve after it has been closed. In no case shall valve5 be able to be opened manually until safety pilots are lighted and circuit completed or low-water cut-off circuit has been completed. . SECTION 2 - 21 PIPING: Gas piping installed for se!ving conversion burners or gas designed heating appliances shall be sized for a total pressure drop not exceeding 0.3 inches water gauge from the meter to the burner for the total connected load. 'A separate pipe from the meter is to be preferred and in no case shall the service pipe be smaller than the size of equipment connection. All gas piping shall be installed in conformance with the provisions of this Ordinance.