Modulex Light Commercial Series
CHAPTER 9: Spare Parts Drawings and Lists
OMM-0158_A
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8.13 Reassembly Of The Burner Modules
After cleaning boiler combustion chamber and/or burners, reposition burners. Position the new
graphite gaskets
on top
of each burner module and ensure proper positioning.
W A R N I N G !
The burner gaskets
MUST
be replaced at every cleaning.
1. Proceed with reassembly, reversing whichever disassembly operation was chosen (all or
individual method). For individual burner module reassembly proceed directly to
step e
.
a) Lower burner assembly
b) Remove left and right lift pins at front and lift screws at rear.
c) Reinstall gas supply pipe to gas collector flange (4 bolts).
d) Reinstall gas collector tube ends onto boiler frame (2 screws per end).
e)
Reinstall bolts “A,” “B” and “C” screws to secure burner assembly to boiler body.
NOTE:
Tighten the burner bolts with a torque of 13 Nm.
f) Reassemble red hoses to the air intake manifold, place manifold onto the blowers, then
reattach tension spring clip to left and right ends of manifold.
g) Proceed to section 8.14 for final procedures before returning boiler to service.
8.14 Final Procedures After Maintenance
1. Before lighting boiler make sure condensate drain pipe is filled with water (Figure 8-1).
2. Ensure the seal between the gas supply pipe and the gas collection tube flange are tight. To
do this, open the external gas valve and bubble check for leaks using a soap solution.
3. When a single burner is ignited, check immediately to ensure that the gas valve and the
relevant premixing chamber are operating correctly.
4. Perform the combustion gas analysis and check all parameters (section 4.35).
5. Make sure that all the pressure test nipples, previously opened, have been closed.
8.15 Maintenance Kit Part Numbers
To order the MODULEX 12-Month and 24-Month (Fireside Inspection) maintenance kits, contact
AERCO International and use P/N 58086-
TAB, replacing the “TAB” with the appropriate suffix
as determined in Table 8-3 and 8-4.
Annual Maintenance Kits contain a flame detector and igniter, while the 24-Month Fireside
Inspection Kits contain flame detector, igniter, and burner gaskets.
TABLE 8-3: MLX 12-Month Maintenance Kit
P/N
DESCRIPTION
58086-02
EXT -
450 2S
ANNUAL MAINTENANCE KIT
58086-03
EXT - 600 2S
ANNUAL MAINTENANCE KIT
58086-04
EXT
–
800 2S
ANNUAL MAINTENANCE KIT
58086-06
EXT
–
1100 2S
ANNUAL MAINTENANCE KIT
TABLE 8-4: MLX 24-Month Maintenance Kit (Fireside Inspection)
P/N
DESCRIPTION
58086-13
EXT -
450 2S
24 MONTH FIRESIDE INSPECTION KIT
58086-14
EXT - 600 2S
24 MONTH FIRESIDE INSPECTION KIT
58086-15
EXT - 800 2S
24 MONTH FIRESIDE INSPECTION KIT
58086-17
EXT
–
1100 2S
24 MONTH FIRESIDE INSPECTION KIT
