Aerco MODULEX EXT 321 - Page 129

MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
OMM-0087_0F AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 129 of 146
GF-143 Phone: 800-526-0288 07/13/15
Disassembling the Boiler for Maintenance – Continued
6. Remove the red hoses (quantity depends on model) from bottom side of manifold (Figure 7-
10), then lift entire manifold from the unit.
Figure 7-10: Removing Red Hoses and Manifold from Unit (Step 6)
Figure 7-11: Removing Gas Valve Connector from All Gas Valves (Step 7)
7. On each gas valve, unscrew the Gas Valve Connector with a Phillips head screwdriver.
Remove connector (Figure 7-11) from the side of each gas valve.
Air Intake
Manifold
Remove Red
Hoses from
under Manifold
Lift out manifold after
removing red hoses.
Remove Connector
Retention Screw
Gas Valve
Connector
(remove from
side of valve)