11
INSTALLATION AND OPERATION MANUAL
Protect the isolation of the mains cable against damage.
• connecTIon of THe cIRcUlaTIon PUMP
In order to insure a continuous flow of water, a circulation pump is to be installed in the system, on the return water
pipe behind the mixing valve. The electronic controller of the boiler controls the pump. Before connecting the circulation
fig. 6 circuit diagram of the boiler
S1 - power supply switch; S2 – ventilator switch; SK – emergency ventilator shutdown 95°C thermostat; F - fuse; M - ventilator;
- circulation pump of the heating system; KR – electronic controller; U
1,2
- water temperature sensors; U
3
- smoke temperature sensor.
the diameter of the connection pipes of the boiler.
• cIRcUIT DIaGRaM of THe boIleR
• An electric installation with earthing, in accordance with the electric safety regulations in force, is to be installed when
connecting the electric part of the boiler.
1
2
3
4
5
6
7
8
9
10
11
12
N
L
L1
L13
L14
N
L3
N
L4
M
P N L
P N
220 V
P N
L
X1
L1
N
L2
L3
L4
P
X2
KR
L13
L2
N
L13
L14
N
L
S1
S2
SK
L
L
L1
U
U
F
X3
U
1
2
3
