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Hamworthy Weymouth Series Installation, Commissioning And Servicing Instructions
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Contents
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HAMWORTHY HEATING LTD7WEYMOUTH 500001112/C6.3 Electrical connection.Wiring diagrams for the Standard and Advanced units can be found fixed inside the cover of the unit and in theappendix. All wiring to the pressurisation unit must be in accordance with the IEE regulations, and any localregulations which apply. Note! If in any doubt a qualified electrician should be consulted.6.3.1 Mains ConnectionBoth the Standard and Advanced are supplied fitted with a 1m flying lead for connection to the mains supply.Mains connection must be via a fused isolator rated at 13 Amps and positioned locally to the unit.6.3.2 Safety Switches/Circuits On Advanced OnlyThe SPDT hi and lo pressure switches can be incorporated into circuits to interrupt a boiler control signal, inorder to shut down the boiler in the event of a system fault condition. The boiler control system must be designedso that manual resetting is required after a system fault condition.The circuits are rated at 230 V ~50 Hz, 15A. NOTE if the factory set pressure switch levels are to be alteredterminal should not be connected at this stage.The connection terminal and its location is shown in fig 10.Figure 10 Advanced Alarm TerminalFigure 9 - Pipework ConnectionsSTANDARD ADVANCED |
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