Appendix D: Recommended Periodic Testing - Watts Aerco BENCHMARK 750 User Manual

Benchmark 750 – 1000 Boiler User Manual - INTERNATIONAL

Appendix D: RECOMMENDED PERIODIC TESTING

Periodic testing of all Heating 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 Heating
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 sections 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-Injector
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
Oxygen (O ) Level
2
OMM-0119_0A
GF-130-I
APPENDIX D – RECOMMENDED PERIODIC TESTING
--WARNING! -
Accomplished
Frequency
By
Daily Operator
Daily Operator
Weekly Operator
Semi-Annually Service Technician Verify factory settings
Annually Service Technician
Monthly Operator
Weekly Operator
Weekly Operator
Annually Service Technician
Weekly Operator
Weekly Operator
Weekly Operator
Semi-Annually Operator
Annually Service Technician See section 6.5
Annually Operator
Monthly Operator
Monthly Operator
Annually Service Technician See section 6.10
Annually Service Technician See section 6.11
As required Operator
Semi-Annually Service Technician
Semi-
Operator
Annually
Monthly Operator
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
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 sections 4.3 and 7.4.
Visually inspection condition and check for
obstructions
See section 7.2
Check position indicator dial (section 3.10)
Check for leakage in accordance with the SSOV
manufacturer's (Siemens) recommendations.
Close manual gas shutoff valve and check safety
shutdown. See section 6.7
Check flame strength using the Control Panel
Operating menu. See section 3.4.
See section 6.4
Perform a slow drain test in accordance with ASME
Boiler and Pressure Vessel Code,
Section IV.
See section 3.2
See section 6.8
See sections 6.2 and 6.3
Check per A.S.M.E. Boiler and Pressure Vessel
Code, Section IV
See section 7.6
See section 7.7
Verify oxygen level is between 3% and 8% during
Heating Boiler operation
Page 143 of 170
11/03/2016