Hamworthy MILBORNE 381 Series, Design Installation, Commissioning And Operating Instructions

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HAMWORTHY HEATING LTD
MILBORNE 500001130/J
iv
Figure 8.10.5.1 Setting Heating Circuit Functions For 0-10V Analogue Input (Load)......................................44
Figure 8.10.6 Setting Low Temperature Heating Circuit Functions for Variable Temps ..................................... 45
Figure 8.10.6.1 Setting Heating Circuit Functions For 0-10V Analogue Input (Temperature).........................45
Figure 9.3.1 Master - Wiring Schematic ....................................................................................................... 47
Figure 9.3.2 Slave - Wiring Schematic .......................................................................................................... 48
Figure 10.3.1 Unscrewing Upper Panel .......................................................................................................... 49
Figure 10.3.2 Fan Power Connection ............................................................................................................. 49
Figure 10.3.3 Venturi Removal ...................................................................................................................... 49
Figure 10.3.4 Fan Removal ........................................................................................................................... 49
Figure 10.3.5 Burner Gasket Removal ........................................................................................................... 49
Figure 10.3.6 Burner Removal ....................................................................................................................... 49
Figure 10.4.1 View of Combustion Chamber Entrance .................................................................................... 50
Figure 10.4.2 Cleaning Combustion Chamber ................................................................................................ 50
Figure 10.5.1 Condensate Drain Removal ...................................................................................................... 50
Figure 10.5.2 Condensate Drain Overview ..................................................................................................... 50
Figure 10.5.3 Condensate Drain Removal ...................................................................................................... 50
Figure 10.5.4 Condensate Drain Disassembled .............................................................................................. 50
Figure 10.6.1 Ignition Electrode ...................................................................................................................... 51
Figure 10.6.2 Removal of Ignition Electrode from Heat Exchanger .................................................................. 51
Figure 10.6.3 Ignition Electrode Recommended Spark Gap Dimension ........................................................... 51
Figure 10.6.4 Ignition Electrode Recommended Spark Gap Dimension ........................................................... 51
Figure 10.8 Flue Sample Point Sealing Plug.............................................................................................51
Figure 11.1 Replacement Casing Panels ..................................................................................................... 52
Figure 11.2 Recommended Replacement Parts .......................................................................................... 52
Figure 11.3 Recommended Replacement Parts .......................................................................................... 53
Figure 11.4 Sensor resistance values ....................................................................................................... 53
Figure A1 Natural Gas Data ..................................................................................................................... 55
Figure A2 LPG Data ................................................................................................................................. 55
Figure A3 Gas Valve and Air Inlet Assemblies ........................................................................................... 56
Figure A4 Separating the Venturi from the Gas Valve ................................................................................ 56
Figure A5 Conversion to LPG by fitting Orifice ........................................................................................... 56
Figure A6 LPG Orifice Fitted ..................................................................................................................... 57
Figure A7 Alternative LPG Orifice ............................................................................................................. 57
Figure B1.1 Electrical Data .......................................................................................................................... 58
Figure B1.2 Pump Contactor Connection ..................................................................................................... 59
Figure B1.3 Remote Enable Signal Connections .......................................................................................... 59
Figure C1 Flue Data ................................................................................................................................. 60
Figure C1.1 50mm Flue Equivalent Lengths .............................................................................................. 61
Figure C1.2 125 / 160mm Ø Maximum Flue Lengths ................................................................................ 61
Figure D1 Mechanical Ventilation Flow Rates ............................................................................................ 63
Figure E1.1 Water Data .............................................................................................................................. 64
Figure E1.6 Pump Selection Chart ............................................................................................................... 65
Figure E1.1.1 Typical Piping Layouts .............................................................................................................. 66
TABLES
Table 7.1
Flue Gas Analysis CO2 Readings ............................................................................................. 25