Potterton Gold 4 kW Installation And Servicing Instructions page 12

MAINS SUPPLY CABLE
Refer to BS7671 for cable sizing
PUMP SUPPLY CABLE
0.5mm - 1mm
2
2
BOILER CONTROL CABLE
0.5mm - 1mm
2 2
REMOVE TOP COVER ONLY TO
GAIN ACCESS TO THE
CONNECTIONS ON THE PRINTED
CIRCUIT BOARD INSIDE THE
BOILER HOUSING
FIGURE NINE: BOILER WIRING DIAGRAM
12
NO CONNECTION
CONTROL
NC N R E N L
NC N R E N L
CONTROL
FS 1 2A 240V
(5 X 20mm)
PUMP
N
SUPPLY
PUMP
CONN 5
CONN 1
CASE EARTH
SUPPORT BACK
L
OF PCB WHEN
TIGHTENING SCREWS
ENSURE SCREWS
ARE TIGHT.
LOOSE CABLE
CONNECTIONS
CAN CAUSE BURNING
AT THE CONNECTOR