MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
Page
6
of
146
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0087_0F
07/13/15
Phone: 800-526-0288
GF-143
CHAPTER 6:
TROUBLESHOOTING ................................................................................................... 113
6.1 E8 Controller Error Codes ................................................................................................................................ 113
E8 Controller Fault Codes ..................................................................................................................... 115
6.1.1
BCM (Boiler Communications Module) Fault Codes............................................................................. 117
6.1.2
BMM (Burner Management Module) Fault Codes ............................................................................... 118
6.1.3
CHAPTER 7:
MAINTENANCE SCHEDULE ........................................................................................ 121
7.1 Instructions for Inspection and Maintenance.................................................................................................. 122
7.2 Periodic Examination Of Venting System ........................................................................................................ 122
7.3 Proper Procedure For Cleaning Exhaust Flue .................................................................................................. 122
Cleaning the Condensate Drain Line ..................................................................................................... 123
7.3.1
7.4 Checking CSD-1 Manifold Flow Switch ............................................................................................................ 123
7.5 Visual Inspection Of The Flame ....................................................................................................................... 124
7.6 Proper Reassembly and Resealing of the Vent-Air Intake System ................................................................... 124
7.7 Pressure Switch Hoses And Connections ......................................................................................................... 125
7.8 Burner / Heat Exchanger Cleaning Procedure ................................................................................................. 126
7.9 Heat and Return Sensor Resistance Values ..................................................................................................... 126
7.10 Unit Disassembly ........................................................................................................................................... 127
7.11 Cleaning the Burner Module and Combustion Chamber............................................................................... 134
7.12 Reassembly of the Burner Modules............................................................................................................... 136
7.13 Final Procedures After Maintenance ............................................................................................................. 136
7.14 Maintenance Kit Part Number ....................................................................................................................... 137
7.15 Accessory Kit Part Numbers ........................................................................................................................... 138
CHAPTER 8:
SPARE PARTS DRAWING AND LISTS ....................................................................... 139
