R016600x

Steam Generator and Fluid Heater Installation Manual

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

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 tem- perature devices are a dual element thermocouple that provides continuous monitoring of the coil face tem- perature in the combustion chamber. 6.5.2 Regulator Approvals Fuel systems are designed to comply with Underwriters Laboratory (UL) and FM approval with IRI available. 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 combustion. 6.5.5 Atomizing Oil Nozzles Modulating oil units use air atomizing oil nozzles, atomizing air customer supplied. Stepfired models use pressure atomizing oil nozzles, no pressurized air supply 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

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Sect06_TechSpecs_xx4_m.fm

05/05/2016