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17
ANNUAL MAINTENANCE CHECKLIST
WARNINGS
THE BOILER CONTAINS REFRACTORY
CERAMIC FIBER, a possible human carcinogen
Use a NIOSH approved respirator when servicing
high-temperature insulation and gasket materials.
Wash exposed skin gently with soap and water
after contact Wash exposed clothing separate
from normal laundry.
LABEL ALL WIRES prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation
FAILURE TO MAINTAIN THE BOILER in proper
working condition may lead to re, explosion,
personal injury or death, and extensive property
damage.
TURN OFF ALL GAS AND ELECTRIC power
supplies to the boiler before servicing. Contact with
or release of dangerous ammable gas, electrical
voltage, moving parts, and very hot water under
pressure may cause serious personal injury,
property damage, or death.
LOCK ELECTRICAL BOXES AND GAS VALVES
CLOSED to prevent someone from inadvertently
restoring power or gas before the heating system is
safe to operate.
Equipment you will need:
q Soft bristle brush
q Bristle ue brush
q Vacuum with brush attachment
Perform these tasks each year:
1. Clean low water cutoff probe (if applicable).
2. Inspect vent for obstruction and signs of
condensation, distortion, overheating or gas
leakage.
3. Clean vent terminal and air intake screens.
4. Inspect boiler ue passages:
(1) Remove vent pipe, damper.
(2) Remove top panel and hood.
(3) Remove blocked vent switch and
canopy.
(4) Examine all ue passageways. Using
bristle ue brush and vacuum,
remove any soot or obstructions.
5. Remove and clean main burners:
(1) Remove jacket front panel.
(2) Disconnect pilot tubing at gas valve.
(3) Disconnect pilot lead wires at gas valve.
(4) Remove wires from ame roll-out switch.
(5) Remove burner access panel.
(6) Mark location of the pilot main burner on
the manifold if the marking on manifold
is missing or obliterated.
AM-1
(7) Hold burner at throat. Lift front of burner
to clear orice (Figure AM-1). The
burner that holds the pilot can only be
removed by rst lifting the burner
adjacent to its right.
6. Perform Startup Checks and Adjustments
described earlier in this manual.
7. Check operation of airow sensing switches.
8. Check for water leaks on the boiler or water
pooling around boiler.
9. Manually operate the relief valve. If the
water is grey or black, there is excessive
oxygen in the system. Oxygen is corrosive
to boilers. Eliminate any source of oxygen.
10. Verify proper operation after servicing.