AERCO BMK 1.5 LN October 2012 - Manual (Page 50)

CHAPTER 4
INITIAL START-UP
Page 50 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
Close the main gas supply shut-off valve upstream of the unit. 1.
Refer to Figure 4.1 and CLOSE the following valves in the unit’s gas train: 2.
• RSI gas valve
• RSI Bleed-off Valve
• Manual shut-off valve to Air/Fuel Valve.
OPEN the main gas supply upstream of the unit. 3.
Turn ON electrical power to the system. 4.
Slowly OPEN the RSI Gas Valve. 5.
Turn on the external gas supply to the unit. 6.
Slowly open the RSI gas supply valve. 7.
Start the boiler in MANUAL Mode. 8.
Look into the observation port in the top head (see Figure 4-3) and ensure that you 9.
observe the orange glow of the RSI flame during the ignition trial period.
Conduct at least three safe RSI ignitions while looking into the observation port in the top 10.
head. Assure the igniter lights immediately with a strong orange flame after the Staged
Ignition Solenoid Valve opens, and then proceed with the Combustion Calibration
procedure described in Section 4.4.
NOTE
Clear any Flame Loss During Ignition messages during the tests by
pressing The CLEAR key on control panel.
IMPORTANT!
If you do NOT see the orange glow from the RSI ignition in the observation
port, refer to Paragraph 7.4.1.2 to calibrate the RSI regulator. Do NOT
proceed with Combustion Calibration until the RSI is igniting properly.
Figure 4-3: Observation Port Location