15
FIGURE 12 : TYPICAL HEATING ONLY WIRING DIAGRAM
ROOM STAT
CYLINDER
STAT
BLUE
G/YELLOW
BROWN
GREY
ORANGE
2 1 3
C 1 2
E
N
L
N
RUN
TO
BOILER
L
N
CH ON
HW ON
CH OFF
HW OFF
FROM 3A
FUSED SPUR
OR MCB
TIME CONTROLLER
FIGURE 11 : TYPICAL Y PLAN WIRING DIAGRAM
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
MID POSITION
VALVE
E
N
L
N
RUN
TO
BOILER
FROM 3A
FUSED SPUR
OR MCB
PROGRAMMABLE ROOM
THERMOSTAT
A B C
OPTIONAL
CAPACITOR
0.47uF 240v AC
