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XI Service and Maintenance
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 any debris found in the combustion chamber, being careful not to disturb combustion chamber insulation.
4) 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.
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 dete-
rioration is found.
6) Inspect the combustion chamber insulation for deterioration.
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 pip-
ing disturbed during the inspection process for leaks.
CAUTION
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS
CAN CAUSE IMPROPER AND DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVIC-
CAUTION
WATER LEAKS CAN CAUSE SEVERE CORROSION DAMAGE TO THE BOILER OR OTHER SYSTEM
COMPONENTS. REPAIR ANY LEAKS FOUND IMMEDIATELY
.
Содержание CWI103
Страница 2: ......
Страница 17: ...15 15 FIGURE 12 INDIRECT WATER HEATER BOILER SIDE PIPING FIGURE 11 STANDARD BOILER PIPING ...
Страница 19: ...17 17 FIGURE 15 BOILER PIPING WITH CHILLER FIGURE 14 ISOLATION OF BOILER FROM SYSTEM WITH A HEAT EXCHANGER ...
Страница 29: ...27 27 FIGURE 24a GAS VALVE DETAIL HONEYWELL VR8204 AND VR8304 FIGURE 24b GAS VALVE DETAIL ROBERTSHAW 7000DERHC ...
Страница 34: ...32 32 Notes ...
Страница 41: ...39 39 Notes ...
Страница 43: ...41 41 ...
Страница 45: ...43 43 ...
Страница 47: ...45 45 ...
Страница 49: ...47 47 FIGURE A1 BASE HEAT EXCHANGER FLUE COLLECTOR ASSEMBLY ...
Страница 51: ...49 49 FIGURE A2 JACKET INSTALLATION ...
Страница 53: ...51 51 FIGURE A3 TAPPING LOCATIONS SEE TEXT FOR TAPPING USES ...
Страница 54: ...52 52 Notes ...
Страница 55: ...53 53 Notes ...