Unit Disassembly - Watts AERCO Modulex EXT Commercial Series User Manual

Modulex EXT Commercial Series Boilers User Manual
CHAPTER 8: Maintenance Schedule

8.10 UNIT DISASSEMBLY

To disassemble the unit for maintenance, do the following:
Disassembling the EXT Boiler for Maintenance
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-0095_0H
GF-139
Figure 8- 4: Unlatch Top Lid (Step 2)
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
NOTE
Commercial units have a special
latch kit to hold up the top plate,
Unical part number 00362418.
Page 125 of 144
09/15/2017