Weil-McLain 550-141-830/1202 - Manual (Page 10)

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Fill the system:
1. Do not fill (except for leakage tests) until boiler
is ready to be fired.
2. Fill to normal water line as indicated on jacket
front panel.
3. Boiler water pH 7.0 to 8.5 is recommended.
Failure to maintain recom-
mended pH can cause section failure and
leaks.
Skim steam boiler:
Clean new steam boilers to remove
any impurities. Failure to properly clean can
result in violent water level fluctuations, water
passing into steam mains, or high maintenence
costs on strainers, traps or vents. Skim boiler
only. Do not clean old piping or leaks can occur.
Do not use petroleum-based
compounds in boiler system. Damage to
system components can result, causing property
damage.
1. Provide 1-1/2" skim piping from skim tapping
(located on front of boiler) to floor drain. Add a
tee in piping to observe skim water level. Raise
waterline to midpoint of skim tapping.
2. Fire burner to maintain water temperature
below steaming temperature during skimming
process.
3. Feed in water to maintain water level. Cycle
burner to prevent rise in steam pressure.
Continue skimming until discharge is clear.
4. While boiler is warm, but not hot, drain boiler
through drain valve.
5. Remove skim piping. Close drain valve. Fill
with fresh water to normal waterline. Start
burner and steam for 15 minutes to remove
dissolved gases. Stop burner.
6. Check traps and air vents for proper opera-
tion.
7. Process may need to be repeated after several
weeks of operation.
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Detailed Service Procedures
To place in operation:
Follow information below to prevent
severe personal injury, death or substantial prop-
erty 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 combustion
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.
1. Verify boiler is filled with water to normal
waterline as indicated on jacket front panel.
2. Open burner door and verify rear target wall,
floor and burner door insulations are in
proper condition and position.
3. Verify burner mounting door is closed and
bolted tightly and burner plug is connected.
4. Refer to burner manual for burner start-up,
adjustment and check-out procedures.
Factory burner adjustment and settings may
not be suitable for specific job conditions.
Make final burner adjustments
using combustion test equipment to assure
proper operation. Do not fire boiler without
water. Sections will overheat, damaging boiler
and resulting in substantial property damage.
5. Check boiler and system piping for leaks.
6. Inspect breeching and venting for proper
operation.
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Part No. 550-141-830/1202