HAMWORTHY HEATING LTD WEYMOUTH 500001112/Ciii7.0 COMMISSIONING.............................................................................................................................. 87.1 Mechanical Installation ...................................................................................................................... 87.2 System Flushing ................................................................................................................................. 87.3 Electrical Installation ........................................................................................................................... 87.4 System Expansion Vessel .................................................................................................................. 87.5 Initial Setting Of Both Standard And Advanced Units ........................................................................ 97.6 Filling The Unit .................................................................................................................................. 107.7 Pressure Switch Adjustment............................................................................................................. 107.7.1 Pressure Switch Adjustment Apparatus ........................................................................................... 117.7.2 Cold Fill Pressure Switch.................................................................................................................. 117.7.3 Lo Pressure Switch (Advanced Only)............................................................................................... 117.7.4 Hi Pressure Switch (Advanced Only) ............................................................................................... 118.0 FAULT FINDING .............................................................................................................................. 129.0 SERVICING SCHEDULE ................................................................................................................. 139.1 6 Monthly .......................................................................................................................................... 139.2 12 Monthly ........................................................................................................................................ 139.3 4 Yearly ............................................................................................................................................ 1310.0 SERVICING AND REPLACEMENT OF COMPONENTS ............................................................... 1410.1 Hamworthy Heating Recommended Spares .................................................................................... 1410.2 Standard Pump Removal ................................................................................................................. 1410.3 Advanced Pump Removal ................................................................................................................ 1510.3.1 Pump Fitting On Both Units .............................................................................................................. 1510.4 Inlet Valve On Both Units ................................................................................................................. 1510.5 Pressure Switches On Both Units .................................................................................................... 1610.6 Pressure Gauge On Both Units ........................................................................................................ 1610.7 Non-Return Valve On Standard Unit ................................................................................................ 1710.8 Non-Return Valve On Advanced Unit .............................................................................................. 1710.9 Expansion Vessel Diaphragm .......................................................................................................... 17APPENDIX ‘A’ – Diagrams, drawings and Data ............................................................................................... 18