Hamworthy Weymouth Series Installation, Commissioning And Servicing Instructions page 6

FIGURES
Figure 1 Basic Overall Dimensions ................................................................................................................... 1
Figure 2 Technical Data .................................................................................................................................... 2
Figure 3 Typical System Schematic Layout ...................................................................................................... 3
Figure 4 Expansion Vessel Operation .............................................................................................................. 3
Figure 5 Schematic Layout of the Standard and Advanced Units .................................................................... 4
Figure 6 Hamworthy Heating Expansion Vessels ............................................................................................. 5
Figure 7 Recommended Clearance Dimensions .............................................................................................. 6
Figure 8 Mounting Bracket Dimension .............................................................................................................. 6
Figure 9 Pipework Dimensions ......................................................................................................................... 7
Figure 10 Advanced Alarm Terminal ................................................................................................................. 7
Figure 11 Restrictor Inserts Standard ................................................................................................................. 9
Figure 12 Restrictor Inserts Advanced ................................................................................................................ 9
Figure 13 Changing Advanced Restrictor Inserts .............................................................................................. 9
Figure 14a Float Adjustment Standard ................................................................................................................ 9
Figure 14b Float Adjustment Advanced ................................................................................................................ 9
Figure 15a Priming Screw Standard .................................................................................................................. .10
Figure 15b Priming Screw Advanced ...............................................................................................10
Figure 16 Pressure Switch Adjustment ............................................................................................................. 10
Figure 17 Pressure Switch Adjustment Apparatus ........................................................................................... 11
Figure 18 Fault Finding Guide .......................................................................................................................... 12
Figure 19 Pump Fittings .................................................................................................................................... 14
Figure 20 Standard Pump Wiring Terminals ..................................................................................................... 14
Figure 21 Advanced Pump Removal ................................................................................................................ 15
Figure 22 Advanced Pump Removal ................................................................................................................ 15
Figure 23 Advanced Pump Removal ................................................................................................................ 15
Figure 24 Advanced Pump Removal ................................................................................................................ 15
Figure 25 Weymouth Advanced Pump Wiring Terminal ................................................................................... 15
Figure 26 Capillary Nut ..................................................................................................................................... 16
Figure 27 Switch Wiring (Advanced Only) ........................................................................................................ 16
Figure 28 Pressure Gauge ................................................................................................................................ 16
Figure 29 Non-Return Valve On Standard Unit ................................................................................................ 17
Figure 30 Non-Return Valve On Standard Unit ................................................................................................ 17
Figure 31 Non-Return Valve On Advanced Unit ............................................................................................... 17
Figure A1 Wiring Diagrams ............................................................................................................................... 19
Figure A2 Heating System Calculation Sheet ................................................................................................... 20
HAMWORTHY HEATING LTD
iv
WEYMOUTH
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500001112/C