R020932J1, Install Manual

Steam Generator & Fluid Heater Installation Manual

2.2.4 Clayton PD Feedwater Pump Placement Clayton’s PD pump placement and its relative position to Clayton’s generator is critical for managing pump-induced equipment vibration; therefore, this helps to extend equipment and component life. Substan- tial hydraulic vibration can develop when pipe runs between the PD feedwater pump(s) and the heating coil inlet are lengthened and/or elevated without additional piping design and component changes.

IMPORTANT To prevent voiding Clayton’s equipment warranty, it is required that any intended re- location of Clayton’s PD feedwater pump from the generator be pre-approved by Clayton’s engineering group prior the equipment installation design. DO NOT MOVE OR RELOCATE THE POSITION OF CLAYTON’S MAIN PD FEED- WATER PUMP, RELATIVE TO THE GENERATOR, AS SHOWN ON CLAYTON’S PLAN INSTALLATION DRAWING, WITHOUT FIRST CONSULTING WITH CLAY- TON’S ENGINEERING GROUP.

Clayton’s service team is restricted from commissioning or starting any Clayton equipment where the main PD feedwater pump(s) has been relocated without prior approval.

2.3 COMBUSTION AIR A sufficient volume of air must be continuously supplied to the boiler room to maintain proper com- bustion. Boiler room fresh air vents must be sized to maintain air velocity less than 400 scfm with less than 1/4 inch water pressure drop. Ventilation openings must be sized at 3 ft 2 /100 bhp or larger. As a guideline, there should be 12 cfm of air per boiler horsepower. 1 This will provide sufficient air for combus- tion and outer shell cooling. Refer to Table 6.1A and 6.1B of Section VI for the required area of free air intake. An inlet air duct should be used when there is insufficient boiler room air, when the boiler room air supply is contaminated with airborn material or corrosive vapors, and when noise consideration is required. A suitable inlet weather shroud is required and an air filter should be installed when there is a potential for airborn contaminates. Air inlet filters capable of filtering airborn contaminates down to 3 microns are required for FMB equipped units. If an inlet air duct is used in cold weather climates, it must contain a motor operated damper with a position interlock switch to prevent freezing of the heating coil. The maximum allowable pressure drop in the inlet air duct system is 0.5 inch water column. 2.4 CUSTOMER CONNECTIONS - STEAM GENERATOR The number, type, and size of required customer connections will vary with equipment size and type of skid package provided. Table 2-1 below identifies the required steam generator customer connections for the various skid packages. The equipment connections and sizes are provided in Tables 6-2 through 6-6 in Section VI.

1 This guideline is based on an installation at about sea level; high altitude installations require more air.

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Sect02_Genrl-SF_r.fm

08/11/2016