Weil-mclain 550-141-829/1201 User Manual

Installer: • Make sure this is the correct manual for the boiler. Verify boiler model onrating label.• Leave all documentation received with boiler an

Install burner (also refer to instructionspacked with burner):Burners designed for use withWeil-McLain 68 boilers must not beused on GOLD Oil boilers.

Install Packaged and Non-Packaged Boiler

General chimney requirements:• Designed for natural draft firing. Connectboiler to vertical chimney.Insufficient draft can cause fluegas leakage and c

Top Outlet Breeching ConnectionFIGURE 8Connect BreechingCONTINUEDBack Outlet Breeching ConnectionFIGURE 713

General piping information:• Hartford Loop piping arrangement and wetreturn are required for steam boilers.• Maintain 24-inch minimum from waterline t

Connect Steam PipingCONTINUED

Connect Steam PipingCONTINUED

Optional reservoir piping:Modern steam boilers are designed to steam forless time than older, larger boilers. When replacingan older steam boiler, the

Hot Water Can Scald!• Consumer Product Safety Commission andsome states recommend domestic hot watertemperature of 130°F or less.• When installing an

General wiring requirements:Electric shock hazard. Can causesevere personal injury or death ifpower source, including service switch on boiler, isnot

2Hazard DefinitionsThe following terms are used to bring attention to the presence of hazards of various risk levels or toimportant information concer

20Connect WiringCONTINUED

Float-Type Low Water Cutoff1 Pressure Control Wiring Harness2 Tankless Heater Control Wiring3 Burner Disconnect Plug4 Burner Wiring Harness5 Low Water

22Connect WiringCONTINUED

Probe-Type Low Water Cutoff1 Pressure Control Wiring Harness2 Tankless Heater Control Wiring3 Burner Disconnect Plug4 Burner Wiring Harness5 Low Water

General oil piping requirements:• Location and installation of oil tanks, oil pipingand burners must follow:— NFPA 31, Standard for the Installation o

Follow information below to preventsevere personal injury, death orsubstantial property damage:• Do not use gasoline crankcase drainings orany oil con

Date Installed: ______________________________________________Boiler Model Number: __________________ Se ries: _________CP Number(s):_________________

Burner adjustments for “P” and “A” boilers:Final burner adjustments must bemade using combustion testequipment to assure proper operation. Do not fire

Parts ListRepair parts must be purchased through Weil-McLain for the specific boiler asindicated in the list below. Results from using modified or oth

Parts Drawing

3Read all instructions before installing. Failure to follow all instructions in proper ordercan cause severe personal injury, death or substantial pro

30DIMENSIONS - in.BOILERMODELNUMBER A B LSGO-3 — 131/2 167/8SGO-4 — 165/8 20SGO-5 — 197/8 221/8SGO-6 19 231/2 261/4SGO-7 221/8 261/8 293/8SGO-8 251/4

DimensionsCONTINUED

Recommended Service ClearancesFIGURE 1Installations must comply with:• U.S.— State and local plumbing, heating andelectrical codes.— National codes wh

Provide air for combustion and ventilation:Adequate combustion and ventilation air:• Assures proper combustion.• Reduces risk of severe personal injur

Place boiler:1. Remove boiler from pallet.Do not drop boiler or bumpjacket on floor or pallet.Damage to boiler can result.Smaller sized boilers may be

Fiberglass wool and ceramic fiber materials:• POSSIBLE CANCER HAZARD BY INHALATION• CAN CAUSE RESPIRATORY, SKIN AND EYE IRRITATIONThis product contain

Place boiler:1. Non-Packaged SGO-3 through 6 — position on site.Smaller sized boilers may betop heavy. Use caution whenhandling to avoid minor persona

Install Non-Packaged BoilerCONTINUED