Myson Midas Sfi Installation And Servicing Instructions

Contents

Myson Midas Sfi Installation And Servicing Instructions Manual pdf 6 page image

12. WATER SYSTEMCentral Heating On/b'radiatorsPump isolationt valvesFromradiatorseDomestic Hot Water OnMains inletisolation valveHot watersensors4+ outHotwaterMains water in,lnline filter andflow regulatorhousing13. IMPORTANT INSTALLATION NOTES1. A system by-pass is included in the Midas Sfi boiler.2. Ensure that the isolating valves are open.3. Mains electricity must always be connected to the boiler.4.5.6.7.8.9.10.11.The water connections must be connected as shown in the water system schematics.The maximum working pressure of the Midas Sfi is 10 bar (145 Ibfhn2). If the mains water pressure is likely to exceedthis, a pressure reducing valve must be fitted to the cold water inlet.When Commissioning, the system and boiler must be vented and the pump running before the main bumer is lit.The system must be flushed twice;initially cold with all valves open, and then after the first heating.In areas with hard or aggressive water we recommend that an inhibitor should be used for example Femox CP3.See Commissioning Instructions for details of use.If used on open system a link must be connected between L1 & P1 on terminal MockIf there is a device which prevents the expansion of domestic water or if the domestic water supply is metered then adevice must be fitted which will allow for the expansion of water.If the domestic water inlet pressure is less than 1.3 bar, the flow regulator can be removed to achieve the full flow rateI _ _ - 1__-..CL.