4.8.3.3 Reversing Boiler Sensor Kf And Automatic Air Vent ............................................................................ 39
4.9 GAS CONNECTION GENERAL INFORMATION ..................................................................................................... 40
4.10 NATURAL GAS CONNECTIONS ......................................................................................................................... 41
4.10.1.1 Natural Gas Piping Connections ........................................................................................................ 41
4.10.1.2 Natural Gas Supply Pressure Requirements ...................................................................................... 41
4.11 PROPANE GAS CONNECTIONS ......................................................................................................................... 41
4.11.1.1 Propane Gas Piping Sizes ................................................................................................................... 41
4.11.1.2 Propane Gas Piping Connections ....................................................................................................... 41
4.11.1.3 Propane Gas Supply Pressure Requirements ..................................................................................... 42
4.12 FLOW AND RETURN PIPE CONNECTIONS ........................................................................................................ 42
4.13 PRESSURE RELIEF VALVE .................................................................................................................................. 42
4.14 CSD-1 MANIFOLD ASSEMBLY (SUPPLIED) ........................................................................................................ 43
4.15 DETERMINATION OF PRIMARY BOILER PUMP OR BOILER SYSTEM PUMP ...................................................... 45
4.16 CONDENSATE PIPING AND DRAIN ................................................................................................................... 46
4.17 WATER TREATMENT ........................................................................................................................................ 47
4.18 IMPORTANT INSTALLATION WARNINGS.......................................................................................................... 47
Oxygen Levels in the System Water Warning ....................................................................................... 48
Antifreeze Compatibility Warning ........................................................................................................ 48
Lime Scale and Corrosive Water Damage Warning .............................................................................. 48
Connection to Refrigeration System Warning ...................................................................................... 48
4.19 AIR INTAKE CONNECTION ................................................................................................................................ 48
4.20 FLUE MANIFOLD CONNECTION ....................................................................................................................... 49
4.21 FLUE EXHAUST PIPING TO VENT ...................................................................................................................... 50
4.22 VENT STARTER PIECES ..................................................................................................................................... 51
4.23 COMBUSTION AIR AND VENTILATION OPENINGS ........................................................................................... 52
Insufficient Ventilations and Combustion Air ....................................................................................... 52
Room Air Combustion ........................................................................................................................... 53
Sealed Combustion ............................................................................................................................... 53
4.24 INSTALLATION OF THE EXHAUST AND AIR INTAKE SYSTEM ............................................................................ 53
Important Factors for Terminal Orientation and Location ................................................................... 54
Minimum and Maximum Wall Thickness.............................................................................................. 55
4.25 VENT PIPE SIZING ............................................................................................................................................. 55
4.26 ELECTRICAL CONNECTIONS ............................................................................................................................. 57
Regulations in Force ............................................................................................................................. 57
Mains Electrical Supply Connection (120 V – 60 Hz) ............................................................................ 57
Service Relay Requirement ................................................................................................................... 58
Electrical Requirements ........................................................................................................................ 58
4.27 FUNCTIONAL WIRING DIAGRAM ..................................................................................................................... 61
4.28 LADDER DIAGRAMS ......................................................................................................................................... 63
4.29 GENERAL LADDER DIAGRAM ........................................................................................................................... 64
4.30 E8 CONTROLLER AND BCM TERMINAL ASSIGNMENTS .................................................................................... 64
4.31 INSTALLATION EXAMPLES ................................................................................................................................ 67
4.32 STARTING UP: FILLING AND DE-AERATING THE BOILER .................................................................................. 69
Necessary Precautions for Safety ......................................................................................................... 69
Supply Voltage, Gas Pressure, and Water pressure.............................................................................. 69
4.33 FILLING THE SYSTEM ........................................................................................................................................ 69
Necessary Precautions While Filling the System .................................................................................. 69
Filling Locations and Preparation.......................................................................................................... 70
4.34 TESTING THE IGNITION SAFETY SHUT OFF DEVICE .......................................................................................... 72
4.35 BURNER CALIBRATION ..................................................................................................................................... 73
Installing the Gas Analyzer Probe ......................................................................................................... 73
Maximum Output Calibration ............................................................................................................... 74
Minimum Output Calibration ............................................................................................................... 75
Final Check and Ignition Failure Adjustment Procedure....................................................................... 75
4.36 SWEEPER MODE (MANUAL CONTROL) ............................................................................................................ 78
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