Modulex Light Commercial Series
TABLE OF CONTENTS
OMM-0158_A
• 6/28/2022 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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120
Ufly Controller Features and Functions ___________________________________________________ 71
Reading the Icons on Home Page _______________________________________________________ 72
Display Modes ______________________________________________________________________ 73
5.2 Bcm (Boiler Communication Module) _______________________________________________________ 73
CHAPTER 6: OPERATION, MENU & PARAMETERS __________________________________________________ 75
6.1 Setup Menu ___________________________________________________________________________ 76
Setting Time and Date ________________________________________________________________ 76
Setting Comfort and Eco Building Reference Temperatures ___________________________________ 76
Setting Comfort and Eco Domestic Hot Water Setpoints _____________________________________ 77
Display Settings _____________________________________________________________________ 77
Language and Unit Settings ____________________________________________________________ 77
Password __________________________________________________________________________ 78
6.2 Heating Menu __________________________________________________________________________ 78
6.3 Domestic Hot Water Menu ________________________________________________________________ 79
6.4 Devices Menu __________________________________________________________________________ 80
6.5 Burner Menu___________________________________________________________________________ 82
Service Mode/Manual Firing Rate Function _______________________________________________ 82
Manual Setpoint Function _____________________________________________________________ 83
Reset Burner Working Hours and Ignition Count ___________________________________________ 84
6.6 Bcm Parameters ________________________________________________________________________ 85
6.7 Bmm Parameters _______________________________________________________________________ 89
CHAPTER 7: TROUBLESHOOTING _______________________________________________________________ 92
7.1 Ufly Controller Error Codes ________________________________________________________________ 92
BCM (Boiler Communications Module) Fault Codes _________________________________________ 93
BMM (Burner Management Module) Fault Codes __________________________________________ 95
CHAPTER 8: MAINTENANCE SCHEDULE __________________________________________________________ 97
8.1 Instructions For Inspection And Maintenance _________________________________________________ 97
8.2 Periodic Examination Of Venting System _____________________________________________________ 98
8.3 Proper Procedure For Cleaning Exhaust Flue __________________________________________________ 98
Cleaning the Condensate Drain Line _____________________________________________________ 98
8.4 Checking Csd-1 Manifold Flow Switch _______________________________________________________ 99
8.5 Visual Inspection Of The Flame ____________________________________________________________ 99
8.6 Reassembly And Resealing Of Vent-Air Intake System ___________________________________________ 99
8.7 Pressure Switch Hoses And Connections ____________________________________________________ 100
8.8 Burner / Heat Exchanger Cleaning Procedure ________________________________________________ 101
8.9 Heat And Return Sensor Resistance Values __________________________________________________ 101
8.10 Unit Disassembly _____________________________________________________________________ 102
8.11 Cleaning THE BURNER MODULE AND COMBUSTION CHAMBER _________________________________ 109
8.12 Cleaning The Heat Exchanger ____________________________________________________________ 111
Mechanical Cleaning of the Heat Exchanger _____________________________________________ 111
Cleaning the Heat Exchanger with Cleaning Solution ______________________________________ 113
Repeat Cleaning ___________________________________________________________________ 113
CHAPTER 9: SPARE PARTS DRAWING AND LISTS __________________________________________________ 115
