Aerco Benchmark BMK 2500, User Manual

Page: 147 / 204

Benchmark 2500 - 3000 Boilers
APPENDIX E: RECOMMENDED PERIODIC TESTING
OMM-0094_0E
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
147
of
204
GF-137
Ph.: 800-526-0288
03/20/2014
APPENDIX E: RECOMMENDED PERIODIC TESTING
WARNING
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 Frequency
Accomplished
By
Remarks
Refer to indicated sections of this manual for detailed procedures
Gauges, monitors and
indicators
Daily Operator Visual inspection and record readings in operator log
Instrument and
equipment settings
Daily Operator
Visual check against factory recommended
specifications
Weekly Operator Verify factory settings
Firing Rate Control
Semi-Annually Service Technician Verify factory settings
Annually Service Technician
Check with combustion calibration test equipment.
See section 7.4 and Chapter 4.
Flue, vent, stack or
intake air duct
Monthly Operator
Visually inspection condition and check for
obstructions
Spark Igniter-Injector Weekly Operator See section 7.2
Air/Fuel Valve position Weekly Operator Check position indicator dial (section 3.11)
SSOV Leakage test Annually Service Technician
Check for leakage in accordance with the SSOV
manufacturer’s (Siemens) recommendations.
Flame failure Weekly Operator
Close manual gas shutoff valve and check safety
shutdown. See section 6.7
Flame signal strength Weekly Operator
Check flame strength using the Control Panel
Operating Menu. See section 3.4.
Low water level cut off
and alarm
Weekly Operator See section 6.4
Slow drain test Semi-Annually Operator
Perform a slow drain test in accordance with ASME
Boiler and Pressure Vessel Code,
Section IV.
High water temperature
safety control test
Annually Service Technician See section 6.5
Operating controls Annually Operator See section 3.2
Low air flow Monthly Operator See section 6.8
High and low gas
pressure interlocks
Monthly Operator See sections 6.2 and 6.3
Air/Fuel Valve purge
position switch
Annually Service Technician See section 6.10
Air/Fuel Valve ignition
position switch
Annually Service Technician See section 6.11
Safety valves As required Operator
Check per A.S.M.E. Boiler and Pressure Vessel
Code, Section IV
Inspect burner
components
Semi-Annually Service Technician See section 7.6
Condensate Trap
Semi-
Annually
Operator See section 7.7
Oxygen (O
2
) Level Monthly Operator Verify oxygen level is between 3% and 8% during