ord_190 - Laserfiche WebLink

Home

25.~ 6-212 The burner or burners shall be so installed as to be readily accessible for cleaning and inspection. 6-213 The burner or burners shall be so installed that no part of name shall im- pinge on heating surface so as to cause imcomplete comBustion. 6-124 On all pre-mix power burners an approved type of check valve shall be installed in the gas supply line to prevent back now of air into the gas line. 6-125 Burners shall be sized aocording to the BTU rating shown in the regularly published literature of the burner manufacturer, and under no conditions shall it be permissible to alter the burner so as to exceed the rated m.ax:l..mum BIU' input. Before the permit for installation of a burner is issued, the burner manu- factJrrer shall furnish the Heating Inspector with a certified copy of the literature showing capacity of burner, spud size and draft loss across the burner for the maximum ratings at the various pressures. 6-126 Each burner shall be equipped with a plain gas pilot or pmlots in addition to the safety pilot ~o insure smooth ~ghting of the burner so that there will be no rollback or heavy detonations during lighting off period except that where the burner unit is of such size that safety pilmt only will light burner smoothly, the plain pilot may be omitted. The pilot flame. shall effectively ignite the gas at the burner and shall be so designeqAs to be adequately pro- tectfld from trafts. Pilot names shall not ..come extinguished during the operation of the main burners nor by ata.eting or stopping them in a normd manner. Luminous name pilots shall not shwo carbon deposit during the perioiB. ot tests when adjasted according to the ~ufaeturerls instructions. 6-217 Where the vertical or upshot .type of burner consisting of a municipality of heads is used, a minimum of one plain gas pilot for each eight heads must be used. In arriving at the number of pilots, t:Qe safety pilot will be counted, as one plain gas pilot above eight heads; below eight heads there must be at least one plain gas pilot and a safety pilot unless the Heating Inspector approves a le..er nUlllber. 6-218 All burners shall be equipped with a flame conductivity or flame rectification type of safety pilot or other approved type of safety device. The ther- mostatic type of pilot will not be permitted. 6-219 Safety pilots shall be so designed that upon insertion of pilot af'ter removal for repairs or Cleaning, pilot will be in the same position relative to the main burner as when originally installed. The pilot flame shall be in such a position that in the event of a drop in gas pressure, the control between pilot flame and flame rod or thermocouple shall be broken before the podmt where the pilot name will fail to reliable ignite the main burner. In the event that this cannot be accomplished then the name rod or thermocouple shall supervise the main bumer flame. . The flame conductivity or name rectification type of pilot shall consist of a I :f'lame rod and pilot burner, flame head (if ot the flame head type), relay, start-i stop push button SW!itch, solenoid gas valve tor shutting off safety pilot gas i as well as gas to. the flame pilots, necessary Aigh tension cable, and a positive shut-oft gas valve carrying the approval of the Heating Inspector. The safety pilot shall be so arranged as to prevent its being lit uhless the main safety valve is in the off position. -49