AERCO BMK 1.5 LN October 2012 - Manual (Page 48)

CHAPTER 4
INITIAL START-UP
Page 48 of 166 AERCO International Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288 PR1:10/18/12
Benchmark 1.5LN Low NOx Boiler
Installation, Operation and Maintenance Manual
GF-120
OMM-0041 0E
4.2.1 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 calibrate the gas pressure to be monitored on
the downstream side of the SSOV during the Combustion Calibration procedures described in
paragraph 4.4.
The gas supply manometer is installed at the downstream location on the 1/4” NPT port shown
in Figure 4-1. Note that a 1/4” plug must be removed from the port in order to install the
manometer.
Figure 4-1: Combustion Calibration & RSI Manometer Installation Locations
TO
AIR/FUEL
VALVE
GAS INLET
SSO
RSI
SOLENOID
VALVE
RSI BLEED-
OFF VALVE
1/4” NPT PLUG
(INSTALL
MONOMETER HERE
FOR
RSI PRESSURE
TEST/CALIBRATION)
MANUAL SHUT-
OFF VALVE
RSI
PRESSURE
REGULATOR
RSI GAS
VALVE
1/4” NPT PLUG
(INSTALL
MONOMETER HERE
FOR
COMBUSTION
CALIBRATION)