K Control panel
K Control panel
K Control panel
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4.4 Skeleton diagram with optional cascade board<br />
VA-SCS<br />
17<br />
1b<br />
1<br />
BPR-VA<br />
SI<br />
1a<br />
1a<br />
ZG<br />
4 3<br />
7 2<br />
1<br />
1<br />
1a<br />
L<br />
1<br />
BA<br />
DGAI 73<br />
SCS<br />
5 7<br />
1 2<br />
X13 5 4 X2 10 X3<br />
2<br />
1<br />
TAF<br />
1<br />
1<br />
3<br />
1<br />
6<br />
6<br />
5<br />
5<br />
2<br />
2 4<br />
FA<br />
2<br />
ECS<br />
8<br />
6<br />
RG<br />
CA<br />
7<br />
8<br />
CCE<br />
6<br />
CCE<br />
DJ4A TI<br />
1 2 1 3<br />
1<br />
1 TCH1<br />
CCE 2 PSG<br />
ECS<br />
3 1<br />
6<br />
7<br />
RG 3 2<br />
1<br />
9<br />
P<br />
9 7<br />
ZT<br />
1<br />
1<br />
1a 1b<br />
ZEH<br />
2<br />
1a 1b<br />
CA ECS CA<br />
CCE<br />
11<br />
12 4 1<br />
5<br />
CA<br />
CA<br />
6<br />
1<br />
4<br />
1<br />
9<br />
1<br />
TCH2<br />
2<br />
7<br />
4<br />
2<br />
2<br />
9<br />
8<br />
3<br />
2<br />
ZT<br />
2a 2b<br />
1a<br />
RG<br />
4 5<br />
TS 1<br />
3<br />
2<br />
BA 10<br />
3 8<br />
ZB<br />
1<br />
14<br />
CS<br />
2b<br />
18<br />
CA<br />
13<br />
15<br />
1<br />
11<br />
1<br />
7 1 6<br />
BA<br />
CO<br />
1a<br />
VB2 CH2<br />
14<br />
1<br />
BA<br />
4<br />
1<br />
CH1<br />
VB1<br />
1<br />
1<br />
h<br />
h<br />
(B) 4 5 6<br />
1 1 4<br />
VS VG VP<br />
1 2<br />
2 2 5<br />
VS<br />
2<br />
2<br />
5<br />
2<br />
1b<br />
2<br />
A<br />
2<br />
P2<br />
2<br />
7 8 9<br />
15<br />
2a<br />
ZEH<br />
2<br />
7 BA BA 12<br />
1a<br />
VA-TS<br />
1b<br />
CCE**<br />
6 BA<br />
2 BA 13<br />
2 4<br />
TI<br />
BA<br />
5<br />
ZG<br />
2a 2<br />
N<br />
2<br />
BA<br />
8358N056<br />
VP Main valve<br />
VS Safety valve<br />
ZB Burner switch<br />
stage<br />
ZEH Summer/Winter switch<br />
ZG Main switch<br />
ZT Test switch<br />
TCH1 Boiler thermostat<br />
1st stage<br />
TCH2 Boiler thermostat<br />
2nd stage<br />
TI Isolating transformer<br />
TS Safety thermostat<br />
VA-TS Safety thermostat alarm<br />
indicator<br />
VB1 Stage 1 operating indicator<br />
VB2 Stage 2 operating indicator<br />
VG Gas valve<br />
ECS Domestic hot water<br />
FA EMI suppressor<br />
L Phase<br />
N Neutral<br />
P2 Shunt pump<br />
PSG Gas pressure switch<br />
RG Regulator<br />
SCS Safety control box<br />
SI Ionisation probe<br />
TAF Draught diverter thermostat<br />
A Heating pump<br />
AE Electrical ignition device<br />
B Burner<br />
BA Connecting strip<br />
BPR-VA Reset button and<br />
burner alarm indicator<br />
CA Cascade<br />
CCE Leak proofing system<br />
CO Flue damper<br />
CS Safety contact<br />
Dj4A 4 A circuit-breaker
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