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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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4.11 Propane Gas Connections ________________________________________________________________ 34
4.12 Flow And Return Pipe Connections ________________________________________________________ 35
4.13 Pressure Relief Valve (Supplied) ___________________________________________________________ 35
4.14 Csd-1 Manifold Assembly (Supplied) _______________________________________________________ 35
Installing the Flow Switch and CSD-1 Components _________________________________________ 36
4.15 Determination Of Primary Boiler Pump Or Boiler System Pump __________________________________ 37
4.16 Condensate Piping And Drain _____________________________________________________________ 38
4.17 Water Treatment ______________________________________________________________________ 39
4.18 Important Installation Warnings___________________________________________________________ 40
4.19 Air Intake Connection ___________________________________________________________________ 40
4.20 Flue Manifold Connection _______________________________________________________________ 41
4.21 Flue Exhaust Piping To Vent ______________________________________________________________ 42
4.22 Vent Starter Pieces _____________________________________________________________________ 43
4.23 Combustion Air And Ventilation Openings ___________________________________________________ 44
Insufficient Ventilations and Combustion Air _____________________________________________ 44
Room Air Combustion _______________________________________________________________ 45
Sealed Combustion _________________________________________________________________ 45
4.25 Vent Pipe Sizing _______________________________________________________________________ 47
4.26 Electrical Connections___________________________________________________________________ 49
60 Hz) ________________________________________ 49
4.27 FUNCTIONAL WIRING DIAGRAM Page 1 _____________________________________________________ 52
4.28 FUNCTIONAL WIRING DIAGRAM Page 2 _____________________________________________________ 53
4.29 Ladder Diagrams _______________________________________________________________________ 54
4.30 General Ladder Diagram _________________________________________________________________ 55
4.31 Input/Output Box Terminal Assignments ____________________________________________________ 56
4.32 Starting Up: Filling And De-Aerating The Boiler _______________________________________________ 57
4.33 Filling The System ______________________________________________________________________ 58
4.34 Testing The Ignition Safety Shut Off Device __________________________________________________ 60
4.35 Burner Calibration _____________________________________________________________________ 61
Installing the Gas Analyzer Probe ______________________________________________________ 61
Maximum Output Calibration _________________________________________________________ 62
Minimum Output Calibration _________________________________________________________ 63
Final Check and Ignition Failure Adjustment Procedure _____________________________________ 63
4.36 Sweeper Mode (Manual Control) __________________________________________________________ 65
4.37 High Altitude Adjustment ________________________________________________________________ 67
4.38 High Altitude Conversion Label ___________________________________________________________ 68
4.39 Conversion From Natural Gas To Propane Gas________________________________________________ 68
4.40 Controls And Emergency Functions ________________________________________________________ 69
4.41 Initial Boiler Ignition ____________________________________________________________________ 70
Preliminary Checks__________________________________________________________________ 70
CHAPTER 5: UFLY CONTROLLER & BCM MODULES _________________________________________________ 71
5.1 Ufly Controller _________________________________________________________________________ 71