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Installation and Operating Instruction 

 

FIRED STEAM BOILER 

Model FPS 

With 

Power Burners 

 

 

 

 

FOR YOUR SAFETY 

This product must be installed and serviced by a professional service technician or gas/oil 
supplier, qualified in steam boiler installation. Improper installation and/or operation could 
cause serious injury or death. Improper installation and/or operation will void the warranty. Do 
not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any 
other appliance.  

Summary of Contents for FPS-24-06

Page 1: ...d by a professional service technician or gas oil supplier qualified in steam boiler installation Improper installation and or operation could cause serious injury or death Improper installation and or operation will void the warranty Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance ...

Page 2: ...lling Contractor and as a Reference for the Operator Owner and Serviceman RETAIN THESE INSTRUCTIONS NEAR THE EQUIPMENT FOR READY REFERENCE The instructions contained in this manual are intended as a guide only and do not supplant any National State or Local Codes This unit must be installed in accordance with those installation regulations in force in the local area where the installation is to be...

Page 3: ...OIL 9 F Flue 10 G Combustion Air 11 III START UP 11 A Pre Startup Checks 11 1 Piping Connections 11 2 Pumps 11 3 Electrical 11 4 Combustion Air 12 5 Gas 12 6 Oil 12 B Filling the System 12 C Control Settings 12 1 Controller 12 2 High Limits 12 3 Low Water Cut Off 12 D Burner 12 1 Preparation for Startup All fuels 12 2 Startup 13 a GAS BURNER 13 b OIL BURNER 13 IV OPERATION AND MAINTENANCE 14 A Ope...

Page 4: ...ered in the basic configuration shown in Figure 1 and Table 1 B WARRANTY PRECISION Fired Steam Boilers are covered by a limited warranty A copy of the warranty is included in the back of this manual Make all warranty claims to an authorized PRECISION Representative or directly to the Factory Claims must include the unit serial number model number per the name plate and installation date Shipping a...

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Page 6: ...in progress CAUTION DO NOT USE THE UNIT S HOUSING TOP FOR SCAFFOLDING C PIPING CONNECTIONS NOTE Refer to applicable dimensionable drawing DD appendixed to this manual 1 Boiler piping connections and valves MUST comply with state and local codes in addition to compliance with ASME piping requirements 2 Install the safety valves s on the connection s provided Plumb the safety valve outlet full size ...

Page 7: ...nd local code requirements using AWG 10 Cu wire minimum 3 All field installed electrical safety devices and controls draft switches relays timers pressure reset devices etc can be connected as shown in the wiring diagram designated Field Interlock Provision E FUEL CONNECTIONS NOTE Also refer to the burner literature supplied as an appendix to this manual relative to the actual burner supplied with...

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Page 9: ...h light grade fuel oils commercial standard grades 1 or 2 1 Prior to installation it is recommended that all national local and other applicable codes be reviewed to ensure total compliance NOTE A two pipe separate suction and return line system must always be used The fuel pump is pre set at the Factory for use only with a two pipe system The pump warranty will be voided if a one pipe system is u...

Page 10: ...e If a manual valve is required an automatic relief valve must be installed across the manual valve to ensure that oil will bypass directly back to the tank in the event the manual valve is inadvertently left in the closed position 4 Before starting up the system all appropriate air and oil leak tests should be performed Make certain that the tank atmospheric vent line is unobstructed F FLUE CAUTI...

Page 11: ...erfect combustion In actual practice a certain amount of excess air is required to ensure complete combustion but this can vary substantially with specific job conditions Additional air is lost from the boiler room through barometric dampers draft diverters and similar venting devices It is generally accepted that square inch of free air opening for each gas or oil burner in the room per 1000 BTU ...

Page 12: ...This is the pressure sensing device which controls the operation of the burner Set the controller for the desired steam pressure 2 High Limits Set the high limit auto reset control approximately 10 above the setting of the controller Manual reset limits should be set approximately 5 above the auto reset limit but should not be set higher than 95 of the safety valve set pressure 3 Low Water Cut Off...

Page 13: ...g c The burner blower motor will start and after a suitable prepurge period this will vary with the type of flame safeguard control supplied but will usually be a minimum of 30 seconds to a maximum of 90 seconds the burner pilot will light after which the main flamewill be established d When burning gas on a Combination Gas Oil unit that has a blower motor driven oil pump open all oil line valves ...

Page 14: ...andard equipment on all units The burner will automatically shut down whenever an over pressure condition occurs 5 A manual reset low water cutoff is also provided as standard equipment on all units The low water cutoff automatically shuts off the burner whenever the water level drops below the Factory set level in the upper part of the tank NOTE Warranty does not cover any damage caused by lack o...

Page 15: ...Electric Gas Oil Valve s d Limit Controls 6 Low water cutoffs should be inspected every six months including cleaning probes and flushing floats 7 Firebox inspections can be made by removing the burner If repairs are required the entire firebox can be withdrawn from beneath the pressure vessel by use of the 3 jacking eyes attached to the vessel s lower flange ...

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