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 fire, 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 flammable 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:

qSoft bristle brush

qBristle flue brush

qVacuum 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 flue passages:

(1)Remove vent pipe, damper.

(2)Remove top panel and hood.

(7)Hold burner at throat. Lift front of burner to clear orifice (Figure AM-1). The burner that holds the pilot can only be removed by first lifting the burner adjacent to its right.

6.Perform Startup Checks and Adjustments described earlier in this manual.

7.Check operation of airflow 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.

(3)	Remove blocked vent switch and	10. Verify proper operation after servicing.
	canopy.
(4)	Examine all flue passageways. Using
	bristle flue 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 flame 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
		17