Lochinvar Mini Copper-Fin MCW91CE Installation, Commissioning And Maintenance Instructions page 3

14.0 MAINTENANCE ..................................................................................................................................................................................................................................... 28
14.1 GENERAL ....................................................................................................................................................................................................................................... 28
14.2 MAINTENANCE SCHEDULE ......................................................................................................................................................................................................... 29
14.2.1 ADDITIONAL REQUIREMENTS FOR WATER HEATERS ........................................................................................................................................... 29
14.3 DRAINING THE WATER SYSTEM ................................................................................................................................................................................................ 29
14.4 WATER HEATER SERVICING ...................................................................................................................................................................................................... 29
14.4.1 REMOVING SCALE AND SEDIMENT FROM THE STORAGE VESSEL ..................................................................................................................... 29
14.4.2 SACRIFICIAL MAGNESIUM ANODES .......................................................................................................................................................................... 29
14.5 CLEANING THE HEAT EXCHANGER .......................................................................................................................................................................................... 30
14.6 REFILLING THE SYSTEM ............................................................................................................................................................................................................. 31
14.7 OTHER CHECKS ............................................................................................................................................................................................................................ 32
14.7.1 RELIEF VALVES ............................................................................................................................................................................................................. 32
14.7.2 FLUE SYSTEM ................................................................................................................................................................................................................ 32
14.8 TTB DEVICE ................................................................................................................................................................................................................................... 32
14.9 FAULT FINDING ............................................................................................................................................................................................................................. 32
15.0 USER INSTRUCTIONS .......................................................................................................................................................................................................................... 33
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