Modulex EXT Commercial Series Boilers User Manual
CHAPTER 8: Maintenance Schedule
OMM-0095_0H AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 127 of 144
GF-139 Phone: 800-526-0288 09/15/2017
Disassembling the Boiler for Maintenance – Continued
6. Remove the rubber hoses (quantity depends on model) from bottom side of manifold
(highlighted in Figure 8-10), then lift entire manifold from the unit.
Figure 8-10: Removing Red Hoses and Manifold from Unit (Step 6)
7. Burner maintenance may be performed on all burner modules simultaneously or on each
one separately, as described in a) and b) below:
a) All Modules: Use a 13mm wrench to remove all “A” and “C” nuts (surrounded by
horizontal dotted lines in Figure 8-11, below). Leave the “B” screws affixed so all burner
plates may be lifted together. Then complete the remainder of the instructions in this
section.
b) Separate Modules: Use a 13mm wrench to remove only the “A” and “C” nuts on either
side of the module in question (vertical dotted lines in Figure 8-11), then remove the “B”
Phillips screw at the end of the burner module. You can then skip the remaining steps in
this section and continue with section 8-11 - Cleaning the Burner Module.
Air Intake
Manifold
Remove
Hoses from under
Manifold
(one per module)
Lift out manifold after removing hoses.
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