![background image](http://html.mh-extra.com/html/aerco/1000/1000_user-manual_2861499090.webp)
Benchmark 750-3000 Boiler Operation, Service, Maintenance Guide - KOREA
APPENDIX D – RECOMMENDED PERIODIC TESTING
Page
90
of
144
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0128_0B
07/17/2017
Ph.: 800-526-0288
Recommended Periodic Testing
ITEM
FREQUENCY
ACTION BY
REMARKS
Low water level cut
off and alarm
Weekly
Operator
See Section 5.4 in the
Benchmark 750 –
3000 Boiler Installation and Startup Guide
Guide
, OMM-0127 (GF-205-K).
Slow drain test
Semi-Annually
Operator
Perform a slow drain test in accordance with
ASME Boiler and Pressure Vessel Code,
Section IV.
High water temp.
safety control test
Annually
Service Technician
See Section 5.5 in the
Benchmark 750 –
3000 Boiler Installation and Startup Guide
Guide
, OMM-0127 (GF-205-K).
Operating controls
Annually
Operator
See Section 2.2.
Low air flow
Monthly
Operator
See Section 5.8 in the
Benchmark 750 –
3000 Boiler Installation and Startup Guide
Guide
, OMM-0127 (GF-205-K).
High and low gas
pressure interlocks
Monthly
Operator
See Sections 5.2 and 5.3 in the
Benchmark
750 – 3000 Boiler Installation and Startup
Guide Guide
, OMM-0127 (GF-205-K).
Air/Fuel Valve purge
position switch
Annually
Service Technician
See Section 5.10 in the
Benchmark 750 –
3000 Boiler Installation and Startup Guide
Guide
, OMM-0127 (GF-205-K).
Air/Fuel Valve
ignition position
switch
Annually
Service Technician
See Section 5.11 in the
Benchmark 750 –
3000 Boiler Installation and Startup Guide
Guide
, OMM-0127 (GF-205-K).
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 4.6.
Condensate Trap
Semi-
Annually
Operator
See Section 4.7.
Oxygen (O
2
) Level
Monthly
Operator
Verify oxygen level is between 3% and 8%
during boiler operation.