Potterton Suprima 100, Installation & Service Instructions Manual

Page: 16 / 38

Installation - Page 16
2.3 Connect the Power Supply Cable
1. Cable clamping is provided on the front of the controls
panel. Feed the cables up and over the back of the
chassis, through the clamp and into the terminal
connection. Connect the wires, brown to L and blue to N
and green/yellow to earth .( ).
Note: When connecting the power supply cable, ensure
that the length of the earth wire is such, that if the power
supply cable pulls out of the cable clamp the live and
neutral wires become taut before the earth wire.
2. The pump wiring should be routed through the hole in
the base of the rear cover, through the cable clamp and
connected to the terminal connection.
3. Take up excess slack in the cables between the terminal
block and the cable clamp, then tighten the cable clamp
screws.
Ensure sufficient slack is available to the cable clamps
to allow the control panel to hinge freely. Check by
opening the control panel.
If fitting the optional Potterton timer go to section 2.4
before performing steps 4 and 5 below.
4. Secure the controls assembly to the chassis using the
screw previously removed.
5. Carry out preliminary electrical system checks i.e. Earth
Continuity, Short Circuit, Polarity and Resistance to
Earth.
Frost Thermostat:
If a Frost Thermostat is to be fitted, the connections
should be made in the wiring external to the boiler.
The Frost Thermostat should be connected between the
Permanent Live & Switch Live in the supply cable to the
boiler.
Do not switch on the electricity supply at this stage.