Crown Boiler AWR Series Installation Instructions Manual page 41

• Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after servicing.
ATTENTION. Au moment de l'entretien des commandes, étiquetez tous les fils avant de les débrancher.
Les erreurs de câblage peuvent nuire au bon fonctionnement et être dangereuses. S'assurer que l'appareil
fonctionne adéquatement une fois l'entretien terminé.
• 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.
• Water leaks can cause severe corrosion damage to the boiler or other system components. Repair any
leaks found immediately.
The following routine maintenance should be performed on an annual basis:
1) Turn off electrical power and gas supply to the boiler.
2) Inspect the flue passages for signs of blockage. If there is any carbon in the combustion chamber or the flue passages,
clean the heat exchanger before proceeding further. See the cleaning procedure below.
3) Remove all burners, noting the location of the pilot main burner. If burners show signs of deterioration, they should be
replaced (some discoloration around the burner ports is normal). Clean the burners by first brushing the ports with a soft
bristle brush and then vacuuming out any debris through the venturi opening.
4) Remove any debris found in the combustion chamber, being careful not to disturb combustion chamber insulation.
5) Inspect the pilot assembly. Clean any deposits found on the electrode and grounding strap. The ideal gap between the
electrode and the ground strap is 1/8". Inspect the porcelain for cracks or other deterioration. Replace pilot assembly if
deterioration is found.
6) Inspect the base insulation for deterioration. Replace if necessary.
7) Inspect the ignition cable insulation for cracks or other deterioration. If deterioration is found, replace cable.
8) Reinstall burners, being careful to put the pilot main burner in its original location.
9) Inspect all boiler wiring for loose connections or deterioration.
10) Inspect the vent system:
•
Make sure that the vent system is free of obstructions.
•
Make sure that all vent system supports are intact.
•
Inspect joints for signs of condensate or flue gas leakage.
•
Inspect venting components for corrosion or other deterioration. Replace any defective vent components.
11) Inspect the boiler and hydronic system for leaks.
12) Place the boiler back in operation using the procedure outlined in "Start-up". Check the pilot line and any other gas
piping disturbed during the inspection process for leaks.
!
WARNING
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