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11.1
ELECTRICAL CONNECTIONS
Access to the electrical connections is achieved by taking off the removable panel next to the controls positioned
on the left hand side of the equipment. Connections to the equipment should pass through one of the 20mm
knock out wiring gland covers provided.
FIGURE 11.1
CONTROL PANEL
11.2
EXTERNAL CONTROLS
The circulating pump should have a separate power source with a suitably sized overload protection device.
The power supply to the Mini Copper-Fin should not be switched by a time clock; the equipment has a remote
stop/start circuit across terminals R and W. Any safety interlocks should be wired in series with the integral flow
switch across terminals X and B. Power is supplied from the equipment for these functions and will be the same
as the equipment’s power supply.
Volt free terminals for a fault alarm condition are marked VFA. Additionally the equipment puts a 230 volt signal
on to the brown wire in the ALM terminal when in a fault condition; the blue wire in the ALM terminal can be used
for a neutral.
Volt free terminals for burner on indication are marked RUN.
11.3
ARC WELDING PRECAUTIONS
The appliance must be isolated from the mains electricity supply in the event of electric arc welding being carried
out on any interconnecting pipework.
