11
20017376
GB
Installation
A1
– Electrical control box CM222
CN
– Connector
h1
– 1st stage hour counter
h2
– 2nd stage hour counter
MV
- Fan motor
SB
– Reset indicator
SO
– Ionization probe
TB
- Burner ground (earth) connection
TL
– Limit thermostat
TR
– 2nd stage thermostat
TA
– Ignition transformer
TS
– Safety thermostat
T6A – Fuse
V10 – V1
V11 – V2
X..
– Socket
XP.. – Socket
5.8.1
Testing
Check that the burner goes off by opening the thermostats (
TL
);
check that the burner has locked out during operation by opening
the connector (
CN
) inserted in the probe's red wire, located out-
side the control box.
5.8.2
Ionisation current
The minimum current necessary for the control box operation is
5 µA. The burner gives a much higher current, meaning that
checking is not usually required.
Should you want to measure the ionization current anyway, you
must open the connector (CN1) inserted in the red wire and insert
a microammeter.
XP4
B5 T6 T7 T8
TA
SO
CN
M
MV
1
2
3
4
1
2
3
4
1
2
3
1
2
3
X1
X2
X4
X5
X10
4
3
2
1
5
1
2
3
5
1
2
3
4
BK
GN
YE
BU
V10
V11
1
2
TL
PE
B4
S3
T2
T1
N
L1
h1
TS
L N
SB
T6A
XP7
h2
TR
230V 50Hz
~
GN
YE
GN
YE
GN
YE
BN
BN
BU
BU
A1
TB
CHIP CARD
D9725
TO BE DONE
Fig. 8
BY INSTALLER
CARRIED OUT
IN THE FACTORY
WARNING
The cross section of the conductors must be at
least 1 mm2. (Unless requested otherwise by lo-
cal standards and legislation).
Probe
Connector
Control-box
D5006
Fig. 9
