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Benchmark 2500DF-3000DF Installation, Operation & Maintenance Manual
4.2.2 Installing Gas Supply Manometer
The gas supply manometer (or gauge) is used to monitor the gas pressure on the downstream side of the
SSOV during the Combustion Calibration procedures described in section 4.4.
The gas supply manometer is installed at the upstream and/or downstream location shown in Figure 4-1.
MANUAL SHUT-
OFF VALVE
TO AIR/FUEL
VALVE
NATURAL
GAS SSOV
1/4" NPT PLUG &
BALL VALVE
(Install manometer here
for NATURAL GAS
combustion calibration)
PROPANE
SSOV
1/4" NPT PLUG &
BALL VALVE
(Install manometer here
for PROPANE
combustion calibration)
Figure 4-1: 1/4 Inch Gas Port Locations for Combustion Calibration
Page 54 of 234
05/21/2014
CHAPTER 4 – INITIAL START-UP
OPTIONAL
VENTING
(DBB gas
trains only)
(BMK 3000DF DBB Gas Train Pictured)
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
NATURAL
GAS INLET
PROPANE
GAS INLET
OMM-0099_0A
GF-145
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