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140 SECTION 2 - 14 PILOTS: Each gas burner shall be equipped with a safety device arranged to prevent the flow of gas through the main burner unless the pilot flame is burning, to consist of a thermostatic pilot or other similar type of safety device. The operation of this device shall not depend upon the closing of an electric circuit to shut off the main gas supply. Gas burners installed under Section 2-11.10 are exempt from this provision. SECTION 2 - 14.1 Pilot burners shall be rigidly supported in such a manner that their position relative to the main burner or burners will be fixed. SECTION 2 - 14.2 Pilot burner or burners shall be so placed that they can be .safely lighted and they shall be readily accessible or removable for cleaning. SECTION 2 - 14.3 Pilot lines shall be connected to vertical main gas supply lines or to the side or top of horizontal lines ahead of all controls including pressure regu- lators and appliance shut-off, and shall be prov.ided- with a separate cock. SECTION 2 - Ih.4 Thermostatic safety pilots shall be so adjusted that main gas supply will be shut off within three (3) minutes after .pilot flames has been extinguished under continuous operating conditions. SECTION 2 - 15 MAIN SHUT-OFF V_~VE OR COCK: A manually operated approved shut-off valve or cock shall be installed at each appliance to shut off the entire gas supply to the appliance, except the pilot, in cases of emergency. SECTION 2 - 15.1 Such valve or cock shall be so located that it is readily accessible, at about five feet above the floor, and shall clear~y indicate the "on" and "off" positions, or direction of rotation to ~pen or close. Where a cock is provided, the opening handle shall be securely attached to the plug in such manner that it may not be readily removed. SECTION 2 - 16 AUTOMATIC CONTROL: Electric control valves shall be installed according to the instructions furnished by the manufacturer. All heating equipment shall be automatically controlled by thermostat except heaters insta~led in fireplaces as provided in Section 2-11.10.