AERCO Modulex EXT 321 - 1123 - Manual (Page 34)

MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
Reversing Cold/Hot Water Flow & Return Connections 3.8.3
Change of Water Flow and Return connections from RIGHT hand to LEFT hand requires
reversing connectors, moving the Flow and Return Temperture Sensors to other end, and
exchanging positions of the Boiler Sensor KF and Automatic Air Vent.
WARNING!
Ensure that the gaskets for ALL connections are reversed along
with the connectors themselves.
3.8.3.1 Reversing Cold/Hot Water Flow & Return Piping Connectors
Refer to Figure 3-11 and reverse the connectors and end caps on Supply, Flow, and Return
pipes. Ensure that all gaskets are also reversed.
Figure 3-11: Reversing Cold/Hot Water Flow and Return Connections and
Sensors from RIGHT HAND to LEFT HAND
Move
end caps (and
gaskets) to other
end of
Flow/Return
pipes.
Reverse positions
of Boiler Sensor
KF and Automatic
Air Vent. See
Figure 3-13.
NOTE
Torque all bolts to 8.85 ft-lbs (12 N/m)
Move supply
connectors
(and
gaskets) to
other end of
Flow/Return
pipes.
Move Flow and Return
Sensors to other end of
pipes. See Figure 3-12.
Page 34 of 148 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0087_0E
12/01/14 Phone: 800-526-0288 GF-143