Appendix I: Recommended Periodic Testing Check List - Watts AERCO Benchmark 2.0LN User Manual

Benchmark 2.0LN Dual-Fuel Low NOx Boiler

APPENDIX I: RECOMMENDED PERIODIC TESTING CHECK LIST

NOTE: Periodic testing of all boiler controls and safety devices is required to determine that they are operating
as designed. Precautions shall be taken while tests are being performed to protect against bodily injury and
property damage. The owner or user of an automatic boiler system should set up a formal system of periodic
preventive maintenance and testing. Tests should be conducted on a regular basis and the results recorded in
a log-book.
Item
Refer to indicated paragraphs of this manual for detailed procedures
Gauges, monitors and
indicators
Instrument and
equipment settings
Firing Rate Control
Flue, vent, stack or
intake air duct
Spark Igniter
Air/Fuel Valve position
SSOV Leakage test
Flame failure
Flame signal strength
Low water level cut off
and alarm
Slow drain test
High water
temperature 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
Inspect burner
components
Condensate Trap
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
PR2: 04/22/13
Operation and Maintenance Manual
WARNING
Frequency Provided By
Daily Operator
Daily Operator
Weekly Operator
Semi-Annually Service Tech. Verify factory settings
Annually Service Tech.
Monthly Operator
Weekly Operator
Weekly Operator
Annually Service Tech.
Weekly Operator
Weekly Operator
Weekly Operator
Semi-Annually Operator
Annually Service Tech. See paragraph 6.5
Annually Operator
Monthly Operator
Monthly Operator
Annually Service Tech. See paragraph 6.10
Annually Service Tech. See paragraph 6.11
As required Operator
Semi-Annually Service Tech.
Semi-Annually Operator
Remarks
Visual inspection and record readings in
operator log
Visual check against factory recommended
specifications
Verify factory settings
Check with combustion calibration test
equipment. See paragraph 7.4 and Chapter 4.
Visually inspection condition and check for
obstructions
See paragraph 7.2
Check position indicator dial (paragraph 3.9)
Check for leakage in accordance with the
SSOV manufacturer's (Siemens)
recommendations.
Close manual gas shutoff valve and check
safety shutdown. See paragraph 6.7
Check flame strength using the Control Panel
Operating Menu. See paragraph 3.4.
See paragraph 6.4
Perform a slow drain test in accordance with
ASME Boiler and Pressure Vessel Code,
Section IV.
See paragraph 3.2
See paragraph 6.8
See paragraphs 6.2 and 6.3
Check per A.S.M.E. Boiler and Pressure
Vessel Code, Section IV
See paragraph 7.6
See paragraph 7.7
GF-127
OMM-0052_0E
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