R020932J1, Install Manual

Steam Generator and Fluid Heater Installation Manual

6.5 SAFETY CONTROLS In addition to the combustion safety control, the following safety devices are continuously moni-

tored during the Steam Generator operation. 6.5.1 Temperature Control Devices

There are three temperature control devices that continuously monitor the machine. The first device monitors the temperature of the steam to prevent against a superheat condition. The second and third temperature devices are a dual element thermocouple that provides continuous monitoring of the coil face temperature in the combustion chamber. 6.5.2 Regulator Approvals Fuel systems are designed to comply with ANSI /ASME CSD-1, Underwriters Laboratory, FM approval, and IRI /GEGAP. 6.5.3 Steam Limit Pressure Switch A steam limit pressure switch protects against an over-pressure condition. 6.5.4 Combustion Air Pressure Switch A combustion air pressure switch is used to prove that sufficient air is present for proper combus- tion. 6.5.5 Pressure Atomizing Oil Nozzles The SigmaFire step-fired fuel system uses pressure atomizing oil nozzles—no pressurized air sup- ply required. 6.5.6 Pump Oil Level Switch A switch is available that monitors the Clayton feedwater pump crankcase oil level for both a high and low oil level condition. 6.5.7 Overcurrent Protection The electrical circuits (primary and secondary) and all motors are protected against an overcurrent condition. 6.6 EQUIPMENT SPECIFICATIONS 6.6.1 Modulating and step-fired SigmaFire steam generators/fluid heaters.

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Sect06_TechSpecs_SF_i.fm

05/05/2016