Required Tools & Instrumentation; Installing Gas Supply Manometer - Watts AERCO Benchmark 2.0LN User Manual

Benchmark 2.0LN Dual-Fuel Low NOx Boiler
CHAPTER 4: INITIAL START-UP
4.2.1 Required Tools & Instrumentation
The following tools and instrumentation are necessary to perform combustion calibration of the
unit:
• Digital Combustion Analyzer: Oxygen accuracy to ± 0.4%; Carbon Monoxide (CO) and
Nitrogen Oxide (NOx) resolution to 1PPM.
• 16 inch W.C. manometer or equivalent gauge and plastic tubing.
• 1/4" NPT-to-barbed fittings for use with gas supply manometer or gauge.
• Small and large flat blade screwdrivers.
• Tube of silicone adhesive
4.2.2

Installing Gas Supply Manometer

The gas supply manometer (or gauge) is used to permit the gas pressure to be monitored on
the downstream side of the SSOV during the Combustion Calibration procedures described in
paragraphs 4.5 (natural gas) or 4.6 (propane).
The gas supply manometer is installed at the upstream and/or downstream location(s) shown in
Figure 4-1.
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
Page 42 of 158
Operation and Maintenance Manual
PROPANE
SSOV
1/4" PLUG & LEAK
DETECTION BALL VALVE
(Install manometer
here for Combustion
Figure 4-1: Manometer Installation Locations
TO AIR/FUEL
VALVE
Calibration)
GF-127
OMM-0052_0E
MANUAL
SHUT-OFF
VALVE
NATURAL
GAS SSOV
PR2: 04/22/13