AERCO Modulex EXT 321 - 1123 - Manual (Page 124)

MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
7.5 Visual Inspection Of The Flame
The burner must flame evenly over the entire surface when operating correctly. The flame must
burn with a clear, ORANGE, stable flame. Check the flame through the flame observation port
(Figure 7-2). The flame pattern should resemble the flame in the illustration below.
FLAME COLOR:
• YELLOW
= CO2 HIGH NOT SATISFACTORY
• BLUE
= CO2 LOW NOT SATISFACTORY
• ORANGE
= OK SATISFACTORY
Figure 7-2: Boiler Flame Observation Port Location
7.6 Proper Reassembly and Resealing of the Vent-Air Intake System
After removing, inspecting, and possibly cleaning the flue pipes and air intake, replace the
piping correctly. Refer to AERCO Venting Application Guide (GF-136-V) for information
concerning Modulex venting requirements.
Flame Observation Port Igniter Cable
Flame Detector
Page 124 of 148 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0087_0E
12/01/14 Phone: 800-526-0288 GF-143