AERCO BMK 1.5 LN Dual Fuel Feb 2013 - Manual (Page 46)

CHAPTER 4: INITIAL START-UP
Page 46 of 162 PR2: 05/09/12
Benchmark 1.5LN Dual-Fuel Low NOx Boiler
Operation and Maintenance Manual
OMM-0041_0C
GF-121
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
1. Close the main gas supply shut-off valve upstream of the unit.
2. Refer to Figure 4.1 and CLOSE the following valves in the unit’s gas train:
• RSI gas valve
• RSI Bleed-off Valve
• Manual shut-off valve to Air/Fuel Valve.
3. OPEN the main gas supply upstream of the unit.
4. Turn ON electrical power to the system.
5. Slowly OPEN the RSI Gas Valve.
6. Turn on the external gas supply to the unit.
7. Slowly open the RSI gas supply valve.
8. Start the boiler in MANUAL Mode.
9. Look into the observation port in the top head (see Figure 4-3) and ensure that you
observe the orange glow of the RSI flame during the ignition trial period.
10. Conduct at least three safe RSI ignitions while looking into the observation port in
the top 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