CBX 24 & 32 SBX 30 - Trademate Home Page

9.11 DIVERTER VALVE MOTORISED HEADRefer to Figure 46a) Ensure supply voltage is isolated.b) Disconnect the electrical lead to the diverter valve motorisedhead.c) Unscrew the locating screw; refer to Figure 46.d) Unclip the diverter valve motorised head and slide it down todisengage it from the hydroblock body.e) Fit the replacement diverter valve motorised head.f) Re-assemble in reverse order; ensure that all joints and sealsare correctly re-fitted.46 DIVERTER VALVE MOTORISED HEAD9.12 HYDROBLOCK ASSEMBLYRefer to Figure 47a) Ensure supply voltage is isolated.b) Disconnect the electrical leads to the pump head and divertervalve motorised head.c) Drain down the appliance; refer to section 9.24.d) Remove the flow and return pipes from the heat exchanger;refer to section 9.8.e) Remove the clip holding the hydroblock adaptor fitting inplace, and remove fitting.f) Remove the two clips holding the return pipes in place.g) Undo the nut connecting the CH return pipe to the CH returnisolating cock, and disengage the CH return pipe from thehydroblock.h) On CBX appliances, undo the nut connecting the DHW returnpipe to the plate heat exchanger and disengage the DHW returnpipe from the hydroblock.i) On SBX appliances, undo the nut connecting the secondaryreturn pipe to the secondary return isolating cock and disengage thesecondary return pipe from the hydroblock.j) Remove the clip holding the flexible hose in place, andremove hose.k) Unscrew the three screws holding the hydroblock onto themounting studs, and remove the hydroblock.l) Align the replacement hydroblock against the mounting studsand secure using the three screws.m) Re-assemble in reverse order; ensure that all joints and sealsare correctly re-fitted.n) Open the isolating cocks and vent air from the system usingthe manual air vent. Re-pressurise the system as necessary andcheck for water leaks.Note: It is likely that there will still be some waterspillage when the Hydroblock is removed.47 HYDROBLOCK ASSEMBLY35