Potterton Gold 4 kW Installation And Servicing Instructions page 13

ROOM STAT
FROM 3A
FUSED SPUR E
OR MCB N
L
N
TO
BOILER
RUN
FIGURE TEN: TYPICAL S PLAN WIRING DIAGRAM
CYLINDER STAT
2 1 3
1 2 3
TIME CONTROLLER
1 C 2
4 5 6 7 8
2 PORT VALVES
BLUE
GRN/YLW
BROWN
GREY
ORANGE
BLUE
GRN/YLW
BROWN
GREY
ORANGE
9 10
13