MC2: 10/03/12 Page 22 of 90
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
Modulex MLX Series Gas Fired Boiler System
Operation and Maintenance Manual
3.2.4 Boiler Connections
Upon delivery, the Modulex Boiler has all the connections fitted on its right-hand side (Figure 3-3).
Note that the right-hand orientation is the right hand side when viewed facing the front of the boiler.
These connections include: water supply and return, gas, combustion air intake and flue collector
outlet. The locations of the air intake and/or the flue collector outlet can be changed on site by
removing knock-outs on the boiler right, left or back side panels. To attach the exhaust connector to the
flue collector, use the screws and the gaskets supplied inside the plastic bag and use a cross-tip
(Phillips) screwdriver at least 12 in. (300 mm) long.
NOTE
Water supply and return and gas connections can be moved to the
boiler’s left-hand side by inverting the flow and return manifolds to the
left side. See Piping Application Guide GF-115-P-H for full instructions
for changing from right-hand to left-hand sides.
Figure 3-3: Boiler Connections
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