Modulex Light Commercial Series
CHAPTER 4: Installation Instructions
OMM-0158_A
• 6/28/2022 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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of
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4.8 Boiler Connections
At delivery, the MODULEX EXT boiler is setup with all connections, (i.e. cold/hot water flow &
return, gas, and exhaust outlet) on its RIGHT HAND side.
Changing Exhaust Outlet Location
To move the flue exhaust outlet terminal from the RIGHT HAND side (standard delivery position)
to the REAR position, it is necessary to request the Rear Exhaust kit, which includes a cover for
closing off the RIGHT HAND side panel exhaust opening (see Figure 4-10).
Figure 4-8: Rear Exhaust Kit for Changing Exhaust Outlet from RIGHT HAND side
to REAR on EXT 802, 962, 1123 (only)
Rear flue
manifold kit
includes the
cover for the
right-hand
exhaust hole.
.
