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Aerco Benchmark 2.0 LN User Manual

Aerco Benchmark 2.0 LN
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Benchmark 2.0 LN Installation, Operation & Maintenance Manual
CHAPTER 7 MAINTENANCE
OMM-0046_0J AERCO International, Inc. 100 Oritani Dr. Blauvelt, NY 10913 Page 85 of 168
GF-123 Ph.: 800-526-0288 06/18/2015
7.4 COMBUSTION CALIBRATION
The Combustion Calibration settings must be checked at the intervals shown in Table 7-1 as
part of the maintenance requirements. Refer to Chapter 4 for combustion calibration
instructions.
7.5 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 Chapter 6-
Safety Device Testing Procedures.
7.6 BURNER ASSEMBLY INSPECTION
The burner assembly (part no. 24176) 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. It should be noted that the complete burner assembly also includes the blower
and air/fuel valve in addition to the Benchmark 2.0 Low NOx burner. The following parts will be
required for reassembly after burner inspection:
Part No.
Description
81101
Burner Gaskets (2)
81048
Flame Detector Gasket
81068
Blower Gasket
To inspect or replace the burner assembly:
1. Set the ON/OFF switch on the control panel, to the OFF position. Disconnect AC power
from the unit and turn off the gas supply.
2. Remove the side and top panels from the unit.
3. Disconnect the lead wire from the flame detector installed on the burner plate. See Figure
7-4.

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Aerco Benchmark 2.0 LN Specifications

General IconGeneral
BrandAerco
ModelBenchmark 2.0 LN
CategoryBoiler
LanguageEnglish

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