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