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Electrical
8 Electrical
Ensure that the electrical supply has
been isolated before making any
connections to the boiler.
8.1 Connecting the Power
Supply
A three core cable is required to
connect the boiler terminal block to the
live supply. Refer to Figure 8-1 for boiler
wiring terminal details.
The procedure for connecting the boiler
power supply is as follows:
1. Loosen (do not remove) the four
screws securing the control panel to
the side panels, hinge the panel
forward and allow it to drop down to
gain access to the top of the panel.
2. Remove the two screws securing
the terminal block cover and lift off
the cover.
3. Remove the screws securing the
cable clamp and open clamp.
4. Connect the power supply cable to
the left hand terminal block as
follows:
• Brown to mains Live (terminal 3)
• Blue to mains Neutral (terminal 2)
• Green/Yellow to mains earth
(terminal 1)
!
WARNING
After completing electrical
connections and before reconnecting
the electrical supply to the boiler,
replace the terminal block cover and
secure it using the screws provided.
!
WARNING
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