Ideal Boilers Classic Combi FF 280 Installation And Servicing

Also see for Classic Combi FF 280: Installation and Servicing Manual User guide

Classic Combi FF 280 - Installation 25INSTALLATION43 WATER CONNECTIONS - continuedRoute a 15mm pipe fromthe safety valve overflowconnection, on top of thewall mounting plate, to aposition outside of thebuilding so that anydischarge of water orsteam from the valvecannot create a hazardto the occupants ordamage to electricalcomponents and wiring.Fit the CH expansion vessel in its working position andsecure with the retaining screw.Working position44 SAFETY VALVE OVERFLOW 45 CH EXPANSION VESSEL LOCATIONINSTALLATIONFlow wiring diagram46 ELECTRICAL CONNECTIONSHanging bracketServicing positionRetaining screw3. Domestic hot water flow rate setting:a. Fully open all DHW taps in turn and ensure that water flows freelyfrom them.b. Close all taps, except the furthest from the boiler, and check that theboiler is firing at maximum rate.c. Turn the DHW flow adjuster CLOCKWISE, to reduce the DHW flowrate, until a rate of approximately 9.6 l/min (2.1gpm) is obtained atthe tap.d. Turn off the DHW tap.WARNING.The appliance must be efficiently earthed.A mains supply of 230 V ~ 50 Hz is required.All external controls and wiring must besuitable for mains voltage.Wiring should be in 3-core PVC insulatingcable, not less than 0.75mm2 (24 x 0.2mm) toBS. 6500 Table 16 and 70°C 'T' rating.The supply connection must be made via adouble-pole switch, fused at 3 Amps, having a3mm contact separation in both poles, servingonly the boiler and system controls.Pictorial and schematic wiring diagrams areshown in Frames 49 and 50.Note.If the optional Programmer Kit is to be fitted,refer to the instructions provided with the kitand Frame 48 .Note.Ensure that the expansion vessel is orientated as shown,to facilitate the fitting of the Combi module cover.Safetyvalveoverflowconnection