Watts AERCO Edge CFR 3000 Operator's And Service Manual page 47

SECTION 8 MAINTENANCE
TABLE 8-3: Recommended Periodic Testing
ITEM FREQUENCY
Flue, vent, stack and
intake air duct
Spark Igniter-Injector
Air/Fuel Valve
position
SSOV Leakage test
Flame failure
Flame signal strength
Low water level cut
off and alarm
Slow drain test Semi-Annually
High water temp.
safety control test
Operating controls
Low air flow
High and low gas
pressure interlocks
Air/Fuel Valve purge
position switch
Air/Fuel Valve
ignition position
switch
Safety valves As required
Inspect burner
Semi-Annually
components
Condensate Trap
Oxygen (O ) Level
2
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ACTION BY
Annually Service Tech
Monthly Operator
Weekly Operator
Weekly Operator
Annually Service Tech
Weekly Operator
Weekly Operator
Weekly Operator
Operator
Annually Service Tech
Annually Operator
Monthly Operator
Monthly Operator
Annually Service Tech
Annually Service Tech
Operator
Service Tech
Semi-
Operator
Annually
Monthly Operator
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REMARKS
Check with combustion calibration test
equipment (see Section 4.2: Tools &
Instruments for Combustion Calibration in this
guide), and the O sensor (see Section 8.4: O
2
Sensor in this guide).
Visually inspection condition and check for
obstructions
See Section 8.2: Ignitor-Injector of this guide.
Check position indicator dial. See Section 3.2:
Start Sequence in this guide.
Check for leakage in accordance with the SSOV
manufacturer's (Siemens) recommendations.
Close manual gas shutoff valve and check safety
shutdown. See Section 5.7: Flame Fault Test of
this guide.
Check flame strength in the Edge Controller's
Unit Status screen.
See Section 5.4: Low Water Level Fault Test in
this Guide.
Perform a slow drain test in accordance with
ASME Boiler and Pressure Vessel Code,
Section IV.
See Section 5.5: Water Temperature Fault Test
in this guide.
See Section 2: Edge Controller Operation in this
guide.
See Section 5.8: Air Flow Fault Tests and
Section 8.8: Air Filter Cleaning and Replacement
in this guide.
See Sections 5.2: Low Gas Pressure Test and
5.3: High Gas Pressure Test in this guide.
See Section 5.10 Purge Switch Open During
Purge in this guide.
See Section 5.11: Ignition Switch Open During
Ignition in this guide.
Check per A.S.M.E. Boiler and Pressure Vessel
Code, Section IV.
See Section 8.6: Burner Inspection in this guide.
See Section 8.7: Condensate Drain Trap in this
guide.
Verify oxygen level is between 3% and 8%
during boiler operation.
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