ASME CSD-1:2018 pdf free download – Controls and Safety Devices for Automatically Fired Boilers
The rules of this Standard cover requirements for the assembly, installation, maintenance, and operation of controls and safety devices on automatically operated boilers directly fired with gas, oil, gas–oil, or electricity, subject to the service limitations, exclusions, and accep- tance of other listings in CG-120, CG-130, and CG-140, respectively. Burner or burner assemblies installed on boilers or as a replacement burner shall comply with the requirements of CF-110 and CF-410 for gas and oil firing, respectively. The use of a gaseous or oil fuel not listed in the definitions has not been evaluated, and special considerations may be required.
Adoption of ASME CSD-1 by a jurisdiction shall not preclude the jurisdiction adopting and accepting boilers listed or certified to other safety standards or codesacceptabletothejurisdictionbeyondthelimitations contained in CG-140. Where other such safety codes and/ or standards are adopted/accepted and overlap with the scope of ASME CSD-1, it shall be the responsibility ofthe jurisdiction to define the application ofthis Standard and those other codes and/or standards.
Installation requirements shall applyto controls, safety devices, and burners on automatically fired boilers covered by this Standard. For information regarding boiler and/or burner instal- lations, refer to local codes. In the absence oflocal codes, see NFPA 54/ANSI Z223.1 for gas-fired boilers and NFPA 31 for oil-fired boilers. For boilers firing liquefied-petroleum gas or LP-gas air mixtures, the requirements pertaining to the storage container,thefirstandsecondstageLP-gaspressureregu- lators, and all components upstream of the point of gas delivery (see CG-700) are covered by NFPA 58.
(a) Installation ofcontrols, safety devices, and burners shall be in accordance with the manufacturer’s instruc- tions and the applicable requirements of this Standard. Diagrams detailing the wiring and piping connections for the controls and safety devices installed shall be furn- ished by the unit manufacturer [see CG-510(c)].
(b) Installations shall provide accessibility for removing burners; adjusting, cleaning, and lubricating working parts; and replacing controls, safety devices, and other control components.
(c) For information concerning the location and instal- lation ofLP-gas air mixture boilers, refer to local building codes.
(d) Whenoneormoremodulesofamodularboiler(see CG-700) are replaced, compatibility of all controls and systems shall be ensured. The replacement modules shall comply with the initial listing and shall meet the re- quirements of this Standard.
Observation ports shall be provided to permit direct visual inspection of the pilot, main burner flame, and boiler furnace, if required to adjust the pilot and/or main burner flame. Observation ports providing direct visual observation are not required for the following:
(a) boilers usingpulse combustion thatare labeled and listed by a nationally recognized testing agency.
(b) boilers providingindirectobservation byreflection for visual observation or an indicator driven by a sensor. When used, a sensor and indicator shall display both the presence and absence of the pilot and/or main flame.