Safety Device Testing; Burner Inspection - Watts AERCO Benchmark OMM-0121 Operation And Maintenance Manual

Benchmark 750-3000 Boiler Operation & Maintenance Manual
SECTION 4 – MAINTENANCE

4.5 SAFETY DEVICE TESTING

Systematic and thorough tests of the operating and safety devices should be performed to
ensure that they are operating as designed. Certain code requirements, such as ASME CSD-1,
require that these tests be performed on a scheduled basis. Test schedules must conform to
local jurisdictions. The results of the tests should be recorded in a log book.
See The Benchmark 750 – 3000 Installation and Startup Guide, OMM-0121 (GF-205) for a
description and instructions for performing these tests.

4.6 BURNER INSPECTION

The burner assembly is located at the top of the unit's heat exchanger. The burner assembly
may be hot. Therefore, allow the unit to cool sufficiently before removing the burner assembly.
The following parts will be required for reassembly after burner inspection:
BMK 750/1000 Burner Inspection Parts
Part No. Description
81143 Burner Gasket
81048 Flame Detector Gasket
81064 Blower Gasket
BMK 1500/2000 Burner Inspection Parts
Part No. Description
81166 Burner Gasket (1 each)
88183 Burner Release Gasket (1 each)
81186 Burner Lower Release Gasket (1 each)
81048 Flame Detector Gasket (1 each)
BMK 2500/3000 Burner Inspection Parts
Part No. Description
88173 Burner Upper Release Gasket
81180 Burner Gasket (Middle)
81185 Burner Lower Release Gasket
81048 Flame Detector Gasket (1 each)
NOTE:
Illustrations for the burner inspection procedure for all BMK models are presented first, starting
on the next page, followed by the written instructions.
OMM-0122_D • GF-206 • 5/9/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 46 of 164