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Modulex Light Commericial Series
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 and raise the top lid (Figure 8-4).
3. Remove screws from top of unit holding the rear and side panels in place (Figure 8-5).
Remove 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)
OMM-0087_J • GF-143 • 11/17/2020
Figure 8- 4: Unlatch Top Lid (Step 2)
Figure 8-7: Remove Flue Assembly (Step 4)
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
NOTE
Commercial units have a special
latch kit to hold up the top plate,
Unical part number 00362418
Page 131 of 150
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