Weil-McLain 550-141-830-1202 User Manual
SGO Series 3 Oil-Fired Steam Boiler
Maintenance
and Service
Guide
For future reference, leave this manual
with other boiler instructions
in the envelope provided with the boiler.
Part No. 550-141-830/1202
Read This Page First
Hazard Definitions
Following terms are used to bring attention to the presence of hazards of various risk levels, or
to important information concerning product life.
Indicates presence of hazards that will cause severe personal injury, death or
substantial property damage if ignored.
Indicates presence of hazards that can cause severe personal injury, death or
substantial property damage if ignored.
Indicates presence of hazards that will or can cause minor personal injury or
property damage if ignored.
Indicates special instructions on installation, operation, or maintenance that
are important but not related to personal injury hazards.
Symbol Definitions
These symbols indicate information for and procedures to be followed by:
Homeowner or person responsible for simple start-up and routine
maintenance of boiler and system. Pages 2 through 6 must be followed
to assure proper operation of your boiler. Page 7 lists common problems
and possible corrections. In addition, it is your responsibility to:
●
Have boiler and burner installed by a qualified installer.
●
Have boiler and burner serviced annually by a qualified service
technician.
●
Review and understand start-up and routine maintenance
procedures with qualified service technician.
●
Perform routine maintenance as described on page 4.
Qualified service technician who has the necessary equipment to
check the boiler and system performance, and is responsible for
start-up and service of boiler and system. Pages 2 and 3 and 8 through
11 must be followed to assure proper operation of this boiler.
In addition, it is the responsibility of this person to:
Annually service boiler and burner to assure proper operation. See page 8
●
for service record.
Review and explain start-up and routine maintenance procedures with
●
homeowner.
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Part No. 550-141-830/1202
For Your Safety
Follow instructions below to
prevent severe personal injury, death or substantial property damage:
●
Do not use crankcase drainings or any oil
containing gasoline. See burner manual for
proper fuel oil.
●
Do not attempt to start burner when excess
oil has accumulated in combustion chamber,
when unit is full of vapor, or when combus
tion chamber is very hot.
●
Do not start burner unless collector hood, flue
cap, jacket cap, breeching and burner mount ing door are secured in place.
●
Never burn garbage or paper in the boiler.
●
Never leave combustible material around
boiler.
DO NOT TAMPER WITH UNIT OR CONTROLS.
●
Always follow specific instructions when
starting up boiler or performing routine
maintenance or service.
Follow instructions below to
prevent severe personal injury, death or substantial property damage:
●
To avoid electric shock, turn off electrical
supply at switch on boiler and additional
external switches before performing service.
●
To avoid severe burns, allow boiler to cool
before performing service.
●
Do not block flow of combustion or ventilation
air to boiler.
●
Boiler must be connected to a flue with
sufficient draft at all times to assure proper
operation.
●
Do not use this boiler if any part has been
under water. Electrical and mechanical
failures may cause electric shock and fire
risks. Immediately call a qualified service
technician to inspect chimney or vent,
boiler and burner. Have the boiler flueways
cleaned and have the following replaced:
— all electrical and mechanical controls
— electrical wiring
— oil burner and controls
— insulation and chamber lining
Tips for steam systems:
Check boiler and system piping for leaks.
●
Continual makeup water will reduce boiler life.
Minerals can build up in sections, reducing
heat transfer and causing cast iron to overheat,
resulting in section failure.
Failure to maintain recom-
mended pH and to repair leaks can cause
section iron corrosion, leading to section
failure and leaks. Do not use petroleum-
based sealing or stop-leak compounds in
boiler systems. Damage to system components
can result.
Boiler water pH 7.0 to 8.5 is recommended.
●
For pH conditions outside 7.0 to 8.5 range or
unusually hard water areas (above 7 grains
hardness), consult local water treatment
company.
●
Do not add cold water to hot boiler. Thermal
shock can cause sections to crack.
Clean newly installed steam boiler to remove
●
oil, grease, and other foreign material. Failure
to properly clean can result in violent water
level fluctuations, water passing into steam
mains, or high maintenance costs on strainers,
traps and and vents. A qualified service techni-
cian should skim the boiler by following
instructions on page 10 of this manual.
Part No. 550-141-830/1202
3
Routine Maintenance Schedule
The schedule below is specifically designed for the homeowner.
Please read pages 2 and 3 before proceeding.
Beginning each heating season:
Call a qualified service technician to perform
annual service.
Daily during heating season:
Check that boiler area is free from combusti ble materials, gasoline and other flammable
vapors and liquids.
Weekly during heating season:
Check for and remove any obstructions to flow
of combustion or ventilation air to boiler.
Check that breeching is attached between
boiler and chimney. If breeching is loose or
damaged, immediately turn off switch on front
of boiler and call qualified service technician
to repair.
Check for oil leaks in oil piping and around
burner. If found, immediately call qualified
service technician to correct situation.
Check for water leaks in boiler and piping;
also check for leaks around tankless heater
plate. If found, immediately call qualified
service technician to repair.
Float-type low water cutoff, when used:
Refer to control manufacturer's instructions.
Periodically during heating season:
Probe-type low water cutoff, when used:
Refer to control manufacturer's instructions
for testing.
End of heating season:
If tankless heater is installed, boiler will
continue to operate. Check for the following:
- All daily, weekly and monthly instructions
listed on this page must be followed.
- Burner motor may have to be oiled. Some
motors are permanently lubricated and do
not need additional oil. Check for oiling
instructions on burner or motor.
Boiler shutdown:
Do not drain boiler unless exposure to
●
freezing temperatures will occur.
Do not use antifreeze in steam systems.
●
Always keep manual fuel supply shut off if
●
burner is shut down for an extended period of
time.
a. Turn off switch at boiler and any external
switch to boiler.
b. Close fuel valves.
c. Turn off water feed valve.
d. Cover burner to protect from dust and
dampness.
Scald potential. Do not blow
down low water cutoff unless blowdown
piping has been installed according to Boiler
Manual. If piping is not in place, call qualified
service technician to install.
4
Part No. 550-141-830/1202
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