Modulex EXT Commercial Series Boilers User Manual
OMM-0095_0H AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 5 of 144
GF-139 Phone: 800-526-0288 09/15/2017
CHAPTER 8: MAINTENANCE SCHEDULE ........................................................................................... 119
8.1 INSTRUCTIONS FOR INSPECTION AND MAINTENANCE ................................................................................... 120
8.2 PERIODIC EXAMINATION OF VENTING SYSTEM .............................................................................................. 120
8.3 PROPER PROCEDURE FOR CLEANING EXHAUST FLUE ..................................................................................... 120
8.3.1 Cleaning the Condensate Drain Line ..................................................................................................... 121
8.4 CHECKING CSD-1 MANIFOLD FLOW SWITCH ................................................................................................... 121
8.5 VISUAL INSPECTION OF THE FLAME ................................................................................................................ 122
8.5.1 FLAME COLOR: ...................................................................................................................................... 122
8.6 PROPER REASSEMBLY AND RESEALING OF THE VENT-AIR INTAKE SYSTEM .................................................... 122
8.7 PRESSURE SWITCH HOSES AND CONNECTIONS .............................................................................................. 123
8.8 BURNER / HEAT EXCHANGER CLEANING PROCEDURE .................................................................................... 124
8.9 HEAT AND RETURN SENSOR RESISTANCE VALUES .......................................................................................... 124
8.10 UNIT DISASSEMBLY ........................................................................................................................................ 125
8.11 CLEANING THE BURNER MODULE ................................................................................................................. 131
8.12 CLEANING THE HEAT EXCHANGER ................................................................................................................. 131
8.12.1 Mechanical Cleaning of the Heat Exchanger ...................................................................................... 132
8.12.2 Cleaning the Heat Exchanger with Cleaning Solution ......................................................................... 133
8.12.3 Repeat Cleaning .................................................................................................................................. 134
8.13 REASSEMBLY OF THE BURNER MODULES ...................................................................................................... 134
8.14 FINAL PROCEDURES AFTER MAINTENANCE................................................................................................... 135
8.15 MAINTENANCE KIT PART NUMBER ................................................................................................................ 136
8.16 ACCESSORY KIT PART NUMBER ..................................................................................................................... 137
CHAPTER 9: SPARE PARTS DRAWING AND LISTS .......................................................................... 139
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