Unit Disassembly - Watts AERCO EXT Installation, Operation & Maintenance Manual

Modulex EXT Commercial Series
CHAPTER 8: Maintenance Schedule

8.10 Unit Disassembly

To disassemble the unit for maintenance, do the following:
1. Switch OFF external electrical power and CLOSE the gas supply valve upstream from the
boiler, and ensure it is completely closed.
2. Unlatch the top lid and raise the lid (Figure 8-4).
3. Remove screws from top of unit holding the front, rear and side panels in place (Figure 8-
5). Remove the panels by tilting away from unit, then lifting up and out (Figure 8-6). Note,
the front and rear panels must be removed before the side panels can be removed.
Figure 8-5: Remove Screws at Edges and Remove Side and Rear Panels (Step 3)
Figure 8-6: Remove Panels (Step 3) Figure 8-7: Remove Flue Assembly (Step 4)
OMM-0160_A • DRAFT
Figure 8- 4: Unlatch Top Lid (Step 2)
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