Ensure the power is isolated to all equipment and tested before carrying out the installation.
Step 1: Interrupt the mains feed to the boiler using a terminal box or an appropriate connector.
Step 2: Connect the earth, neutral and live from the switched fuse spur as shown in the diagram above
into terminals 1, 2 and 3.
Step 3:Â Connect the earth from the boiler into terminal 1, the neutral from the boiler into terminal 2 and
the live from the boiler into terminal 4.
Step 4: Connect the earth from the pump into terminal 1, the neutral from the pump into terminal 2 and
the live into terminal 3.
Step 5: Connect the two core cable from the pump into terminals 3 and 4.
Step 6: Ensure all connections are correct to the diagram above before switching on the power supply
and testing.
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