19
Sigma
101
X4
X5
63
121
86
1
4
1
5
16
49
43
NO
NC
C
1
2
3
4
5
6
7
8
9
10
11
12
83
24
32
72
SwL L
N PL
PN
230V ~
50 Hz
W
Blue
BR
BL
YG
YG
Blue
BR
V
G
Blue
BL
BL
W
R
W
O
P
BR
Blue
X8
G C P
JP
Fully
pumped
X3
34
Blue
2.08.01 Schematic wiring diagram for fully pumped system
Key
16
Fan
24
Spark and sensor electrode
32
Central heating pump (not fitted)
34
Central heating flow temperature sensor
43
Air pressure switch
49
Safety thermostat
63
C.H. temperature adjustment
72
External controls
83
Full sequence automatic control on gas valve
86
Reset switch
101
Main P.C.B.
121
Boiler shut-down warning (Led)
Fig. 40a
If there are no external
controls fi tted, connect the
SWL terminal to permanent
live in the junction box
Colors key
BR
Brown
Blue
Blue
BL
Black
W
White
O
Orange
G
Grey
R
Red
V
Violet
P
Pink
YG
Yellow-Green
Содержание SIGMA
Страница 17: ...17 Sigma Pipe and fittings reduction table shown in Metres ...
Страница 31: ......