Baxi POWER HT+ Series Installation And Service Manual page 16

3 Technical specifications
Fig.5 Electrical diagram POWER HT+ 1.90 – POWER HT+ 1.110
P
O
N
M
L
K
J
I
4
H
G
F
E
D
B C
4
3
N
L
A
2
1
A A Power supply 230V 50Hz
B Power supply auxiliary circuit 1
C Power supply auxiliary circuit 2
D Room thermostat
E Heating circuit pump
F Domestic hot water pump
G Safety contact
H Boiler pump
I Auxiliary sensor 1
J Auxiliary sensor 2
K Outside temperature sensor
L Domestic hot water sensor
M Room temperature sensor 1
N Room temperature sensor 2
O Room temperature sensor 3
16
2
3
1
1
3
1A 1
4
2
2A 2
5
HMI
11
10
P Boiler pump modulation (PWM)
1 Flow temperature sensor
2 Return sensor
3 Hydraulic pressure sensor
4 Flue gas sensor
5 HMI Text display
6 Ionisation probe
7 Spark plug
8 Igniter
9 Gas valve
10 Safety thermostat
11 Fan
12 Thermal fuse
13 Safety thermostat on the combustion chamber door
7
6
8
12
9
MW-3000004-01
7609474 - v02 - 04092014