AERCO Modulex EXT 1530 - 3060 - Manual (Page 125)

MODULEX EXT 1530, 1912, 2295, 2677, 3060 BOILERS
Installation, Operation & Maintenance Manual
Disassembling the Boiler for Maintenance – Continued
Figure 7-19 Lifting Burner Assembly and Location of the Check Valve
7.11 Cleaning the Burner Module and Combustion Chamber
After completing the previous section, the individual burner modules are exposed and available
to be cleaned. Follow the instructions to clean the burner modules.
Cleaning the Burner Modules
1. Carefully lift each burner module from its position. Remove both the module and the
gasket. Discard the used gasket, as each one will be replaced at reassembly.
WARNING!
The burner gaskets MUST be replaced at every cleaning.
2. Use only compressed air to clean the burners by blowing into the “flame” side of the burner
mesh. See Figure 7-20.
Figure 7-20: Burner Module Profile Compressed Air Orientation (Step 2)
3. Visually inspect burner mesh and the spot welds at the L profile (where the mesh is welded
to the frame) for integrity. If welds are compromised or the burner mesh is damaged, the
entire burner module should be replaced.
4. Once all the burner modules are removed, wash the combustion chamber underneath with
water. Avoid getting the electrical harnesses and components wet.
5. During this operation, inspect to the condensate drain pipe to determine if it is free of
obstructions; wash water should drain freely from the condensate drain pipe.
6. Blow the combustion chamber with compressed air and attempt to remove any dirt clogging
the aluminum rings of the combustion chamber wall.
7. Once the washing of the aluminum sections is finished, make sure the condensate siphon
is free of obstructions. Clean them if necessary.
8. Inspect the flue exhaust section, including the exhaust piping.\
NOTE
The check valve ( 1 in Fig. 7-
19) should be checked at this
time to ensure that it moves
freely and closes properly.
COMPRESSED AIR
OMM-0095_0E AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 125 of 138
GF-139 Phone: 800-526-0288 12/01/14