Benchmark 750 – 1000 Boiler User Manual - INTERNATIONAL
CHAPTER 4 – INITIAL START-UP
OMM-0119_0A
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
57
of
170
GF-130-I
Ph.: 800-526-0288
11/03
/2016
To monitor the gas pressure on the downstream side of the SSOV during Combustion
Calibration (section 4.3), install the 16” W.C. (4.0 kPa) manometer(s) as described in the
following steps:
Installing Gas Supply Manometer
1.
Turn off the main gas supply upstream of the unit.
2.
Remove the top panel and front panel from the Heating Boiler to access the gas train
components.
3.
Remove the 1/4” NPT plug from the leak detection ball valve on the downstream side of
the SSOV as shown in Figure 4-1.
4.
Install a NPT-to-barbed fitting into the tapped plug port.
5.
Attach one end of the plastic tubing to the barbed fitting and the other end to the 16” W.C.
(4.0 kPa) manometer.
4.2.3 Accessing the Analyzer Probe Port
The unit contains a 1/4” NPT port on the side of the exhaust manifold as shown in Figure 4-2.
Prepare the port for the combustion analyzer probe as follows:
Accessing the Analyzer Probe Port
1.
Refer to Figure 4-2 and remove the 1/4” NPT plug from the exhaust manifold.
2.
If necessary, adjust the stop on the combustion analyzer probe so it will extend mid-way
into the flue gas flow.
DO NOT install the probe at this time.
Figure 4-2: Analyzer Probe Port Location (Right Side Partial View)
CONDENSATE DRAIN
ANALYZER PROBE PORT
EXHAUST MANIFOLD
