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This manual must only be used by a qualified heating installer/service technician. BEFORE installing, read 

all instructions in this manual and all other information shipped with the boiler. Perform steps in the order 

given. Failure to comply could result in severe personal injury, death or substantial property damage.

• Installation

• Startup

• Maintenance

• Parts

Boiler Manual

Part number 550-142-330/0421

Series 4

Oil-Fired Steam Boilers

Содержание SGO Series 3

Страница 1: ...uctions in this manual and all other information shipped with the boiler Perform steps in the order given Failure to comply could result in severe personal injury death or substantial property damage...

Страница 2: ...ries from boiler rating label and Consumer Protection CP number s from boiler jacket burner and controls On page 35 of this manual is space to list CP number s Homeowner Read and follow all informatio...

Страница 3: ...8 Install burner also refer to instructions packed with burner 18 General chimney requirements 18 Connect breeching 18 Connect breeching 18 Connect steam piping 20 General piping information 20 Instal...

Страница 4: ...replace the boiler with a new Weil McLain boiler Frozen Water Damage Hazard Residences or buildings that are unattended in severely cold weather boiler system components failures power outages or oth...

Страница 5: ...ely call service technician to repair Check float type low water cutoff when used Refer to control manufacturer s instructions Scald potential Do not blow down low water cutoff unless blow down piping...

Страница 6: ...psig Contact a qualified service techni cian if high pressure occurs Air openings Verify that combustion and ventilation air openings to the boiler room and or building are open and unob structed Chec...

Страница 7: ...st combustion settings with analyzer Some radiators or baseboard units do not heat Main or radiator air vents one pipe system or traps two pipe system not operating correctly Have qualified service te...

Страница 8: ...boiler location Check for nearby connections to System water piping Chimney See page 18 Boiler can be top or back vented Combustion and ventilation air supply See page 9 Oil supply See page 32 for oi...

Страница 9: ...of all fuel burning appliances plus requirements for any equipment that can pull air from room including clothes dryer and fireplace When outside air is used connect each opening directly or by ducts...

Страница 10: ...tside air directly to the burner Before installing boiler continued Table 2 Corrosive contaminants and likely locations Products to avoid Spray cans containing chloro fluorocarbons Permanent wave solu...

Страница 11: ...ress reset button on burner primary control only once Repeated presses will deposit oil in combustion chamber Burner must never be fired when oil is in combus tion chamber Immediately call qualified s...

Страница 12: ...low water cutoff 1 If burner does not fire check for Service switch on boiler or additional switches turned off Fuses or breaker switch tripped Thermostat set below room temperature Fuel valves turned...

Страница 13: ...t wall chamber floor and burner door 5 Visually check a Flue collector hood seal b Burner mounting door seal Obtain gas tight seal to prevent possible flue gas leakage and carbon monoxide emissions wh...

Страница 14: ...ed down boilers only g Oil threads on draw rods Install washer and nut on end to be tightened Use nut only on other end h With wrench at washer nut end uniformly tighten nuts starting with 5 rod at la...

Страница 15: ...pletely Figure 6 Change from back flue outlet to top flue outlet optional Install boiler Semi packaged and Knocked down boilers only continued Sealing rope in groove inside cap Flue cap Flue cap strap...

Страница 16: ...tial property damage 3 Check for maintained gauge pressure for more than 10 minutes Visually check for leaks if gauge pressure drops 4 Drain boiler Repair leaks if found Do not use petroleum based com...

Страница 17: ...trol SGO 6 to SGO 9 tankless heater control Steam pressure Steam pressure Probe type low water cutoff Gauge glass and cocks Drain valve Part number 550 142 330 0421 17 SGO OIL FIRED NATURAL DRAFT STEA...

Страница 18: ...loor and burner mounting door 3 Securely close door and tighten nut For burners without OEM welded flanges 1 Secure universal mounting flange and gasket to burner mounting door Use three 3 bolts provi...

Страница 19: ...ntrol manufacturer s instructions Flue pipe bracket One on each side of pipe Typical location for barometric control Also see control manufacturer s instructions Flue pipe bracket One on each side of...

Страница 20: ...ccur Do not plug valve or place any obstruction in discharge line 3 Float type low water cutoff only install blow down line in bottom of cutoff See Figure 14 or Figure 15 and also refer to low water c...

Страница 21: ...gure 14 Steam piping for sizes 3 through 5 see Figure 15 page 22 for sizes 6 through 9 Part number 550 142 330 0421 21 SGO OIL FIRED NATURAL DRAFT STEAM BOILER SERIES 4 Boiler Manual SERVICE TECHNICIA...

Страница 22: ...GO OIL FIRED NATURAL DRAFT STEAM BOILER SERIES 4 Boiler Manual SERVICE TECHNICIAN ONLY read and follow completely Figure 15 Steam piping for sizes 6 through 9 see Figure 14 page 21 for sizes 3 through...

Страница 23: ...26 8 16 23 31 0 9 SGO 7 246 30 9 18 27 35 1 0 SGO 8 274 33 10 20 30 39 1 1 SGO 9 303 36 11 22 33 44 1 2 Maximum time to when condensate returns to boiler Optional reservoir piping Modern steam boilers...

Страница 24: ...d persons are more likely to be injured by hot water Never leave them unattended in or near a bathtub shower or sink Never allow small children to use a hot water faucet or draw their own bath If anyo...

Страница 25: ...TURAL DRAFT STEAM BOILER SERIES 4 Boiler Manual SERVICE TECHNICIAN ONLY read and follow completely These single wall heat exchangers comply with National Standard Plumbing Code provided that Boiler wa...

Страница 26: ...and Knocked down boilers trim kits are furnished with burner and limit harnesses All field provided high voltage wiring must be sheathed in flexible metal conduit Connect incoming line voltage HOT wi...

Страница 27: ...r harness wiring When using the BVSS without the OVD damper the BVSS is wired directly to the junction box as follows The BVSS wiring diagram in Figure 24 page 31 shows boiler wiring up to the burner...

Страница 28: ...ure 19 Boiler wiring for float type LWCO see Figure 20 page 29 for component locations Part number 550 142 330 0421 28 SGO OIL FIRED NATURAL DRAFT STEAM BOILER SERIES 4 Boiler Manual SERVICE TECHNICIA...

Страница 29: ...damper kit the BVSS is re quired and is integrated into the damper harness wiring When using the BVSS without the OVD damper the BVSS is wired directly to the junction box as follows The BVSS wiring...

Страница 30: ...ure 22 Boiler wiring for probe type LWCO see Figure 23 page 31 for component locations Part number 550 142 330 0421 30 SGO OIL FIRED NATURAL DRAFT STEAM BOILER SERIES 4 Boiler Manual SERVICE TECHNICIA...

Страница 31: ...ox cover 2 Locate wire nut with two black wires if more than one exists pick the one with black wire going to the burner harness Clip the wire nut 3 Strip 1 2 from the end of both the black wires 4 Cl...

Страница 32: ...lon tape as an oil pipe sealant It can cause valves to fail creating hazards Do not use compression fittings only flare fittings Underground pipe must be run in a casing to prevent oil leaking into gr...

Страница 33: ...e boiler is producing steam The level of chlorides and dissolved solids in the boiler water increase when make up water is added to the boiler because of normal maintenance to low water cutoffs and sy...

Страница 34: ...3 Feed in water to maintain water level Cycle burner to prevent rise in steam pressure Continue skim ming until discharge is clear 4 While boiler is warm but not hot drain boiler through drain valve 5...

Страница 35: ...ed by control manufacturer Burner should be operating and should go off when controls are tested When controls are restored burner should re ignite Limit control set to system pressure requirements Th...

Страница 36: ...lean boiler flue ways See page 38 5 Perform service on low water cutoff relief valve and gauge glass See page 37 6 Check boiler and piping for leaks and repair if found 7 Inspect and adjust burner See...

Страница 37: ...r should be adjusted to 13 CO2 or less with a smoke level of zero and over fire of 0 01 to 0 02 Re adjust burner combustion to account for environmental conditions Actual CO2 value will vary and shoul...

Страница 38: ...e around flue area is intact Visually check condi tion and position of insulation in combustion chamber floor and the refractories at the rear of boiler and in the burner mounting door Replace any par...

Страница 39: ...off power to boiler and wait 5 minutes 2 Drain water to bottom of gauge glass 3 Turn on power 4 Set thermostat to call for heat Red neon lamp on lower water cutoff should light 5 Wait 5 minutes Boile...

Страница 40: ...e tested at least monthly during the heating season to verify the valve and discharge piping flow freely Inspect the boiler relief valve and the relief valve discharge pipe for signs of weeping or lea...

Страница 41: ...55 933 SGO 4 381 355 928 381 355 930 381 355 975 381 355 934 SGO 5 381 355 928 381 355 931 381 355 976 381 355 935 SGO 6 381 355 928 381 355 932 381 355 977 381 355 936 Complete Jacket cartons 3 secti...

Страница 42: ...SGO 3 386 700 340 F Collector hood kit for SGO 4 386 700 341 F Collector hood kit for SGO 5 386 700 342 F Collector hood kit for SGO 6 386 700 343 F Collector hood kit for SGO 7 450 020 191 F Collecto...

Страница 43: ...d parts will not be covered by warranty and may damage boiler or impair operation D J K J J C G G N Q E G F R B A P L J M H S Figure 29 SGO Series 4 section and flue collector parts Part number 550 14...

Страница 44: ...e limit control spst automatic recycle with 3 4 well used in tankless heater kit 510 312 209 9 Low water cutoff float type 511 114 495 10 Low water cutoff probe type 511 100 007 11 Drain cock 3 4 11 2...

Страница 45: ...ing modified or other manufactured parts will not be covered by warranty and may damage boiler or impair operation Part number 550 142 330 0421 45 SGO OIL FIRED NATURAL DRAFT STEAM BOILER SERIES 4 Boi...

Страница 46: ...8 15 393 7 L B 20 514 4 Dimensions Part number 550 142 330 0421 46 SGO OIL FIRED NATURAL DRAFT STEAM BOILER SERIES 4 Boiler Manual SERVICE TECHNICIAN ONLY read and follow completely Boiler model numbe...

Страница 47: ...boiler designed with convertible vertical and horizontal flue outlet 2 MBH refers to thousands of Btu per hour 3 Based on 140 000 Btu gal 4 Based on standard test procedures prescribed by the United S...

Страница 48: ...insula tion from the boiler and place it in a plastic bag for disposal Wash potentially contaminated clothes separately from other clothing Rinse clothes washer thor oughly NIOSH stated First Aid Eye...

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