ord_190 - Laserfiche WebLink

Home

25 6-220 All pilot burners shall be supported in such a. manner that their posi- tion relative to the main burner or burners will remain fixed. 6-221 Pilot lines shall be connected to vertical supply lilles when possible. When horizontal line is used, connection must be made on top or side. Connection must be ahead of all controls including regulator and appliaace shut-off and shall be provided with a separate shut-off cock. 'Where gas pressure is greater than that for which pilots are designed a pressure regulator (pilot regulator) must be installed on the downstream side of pilot line shut-off cock. 6-222 A shut-off cock must be installed on branch line to safety pilot and to each branch line to plain pilot system. 6-223 A manually operated approved shut-off cock shall be installed adjacent to the gas burner on the down stream of all other control valves either manual or automatic. Such cock shall be so located that it is readily accessible and shall clearly indicate the lion" and "off" position, or direction of rotation to open or close. This valve or cock must have hamtle securely attached in such a manner that it may not be readily removed. When gas pressures are greater than 1 psig the cock must be of the lubricated plug type. Gate or gloVe type valve will not be acceptable. Provide bIecidel'! line or other approved method of insuring against gas leakage to boiler during shur down periods. 6-224 A manually operated approved type lubricated shu:b-off cock shall be installed at each boiler or furnace ahead. of all control valves aDd regulators except pilot line. This cock shall be so located that it is readily accessible and shall clearly indicate the on or off position or direction of rotation to open and close. Cock shall be provided with a suitable operating handle permaneitly attached. Gate or globe valve will not be acceptable.. 6-225 Electric control valves shall be installed according to the instructions furnished by the manufacturer. 6-226 All electrical connections shall be made in conformity with the provis- ions of. all codell relating to the installation of electric wiring wi thin the municipality. 6-227 A gas pressure regulator approved by the Heating Inspector shall be installed on all gas burner installations. 6-228 Each boiler or fumace shall be equipped with safety devices to limit high steam pressures or watjr temperatures, low-water level and high air temperatures. Where boiler or furnace is equipped with so-called power burner, where air for combustion is furnished by means other than a natural draft stack or where boiler b111"llers are so sized and designed to require forced or induced draft or both, the gas and air supply shall be equipped' with suitable controls to prevent functioning of the gas supply until air supply is adequate for proper combustion, or in the event of failure of air supply to shut off the gas supply. 6-229 Where forced draft equipment is used, a manual cutout control switch may be installed subdect to approval, to eemit lighting off the burner under natural draft, normal opera'tion under forced draft to remain under safety control. -50-