15
20029918
GB
Installation
5.8.3
Testing
Check the standby of the burner by opening the thermostats (
TL
);
check that the burner is blocked
while is working by opening
the connector (
CN
)
inserted in the probe red wire and located out-
side the control box.
5.8.4
Ionisation current
The minimum current necessary for the control box operation is
5 µA. The burner normally supplies a higher current value, so that
no check is needed (Fig. 12).
Anyway, if you want to measure the ionisation current, you need
to open the connector (CN1) fitted on the red wire and insert a
microammeter.
Optimum calibration values
5.9
Electrical wiring
5.9.1
Notes on safety for the electrical wiring
The electrical wiring must be carried out with the electrical
supply disconnected.
Electrical wiring must be made in accordance with the regu-
lations currently in force in the country of destination and by
qualified personnel. Refer to the wiring diagrams.
The manufacturer declines all responsibility for modifications
or connections different from those shown in the wiring dia-
grams.
Do not invert the neutral with the phase in the electrical sup-
ply line. Any inversion would cause a lockout due to firing
failure.
The electrical safety of the device is obtained only when it is
correctly connected to an efficient earthing system, made
according to current standards. It is necessary to check this
fundamental safety requirement. In the event of doubt, have
the electrical system checked by qualified personnel.
The electrical system must be suitable for the maximum
power absorption of the device, as indicated on the label and
in the manual, checking in particular that the section of the
cables is suitable for that level of power absorption.
For the main power supply of the device from the electricity
mains:
- do not use adapters, multiple sockets or extensions;
- use a omnipolar switch with an opening of at least 3 mm
between the contacts (overvoltage category), as fore-
seen by the current safety standards.
Do not touch the device with wet or damp body parts and/or
in bare feet.
Do not pull the electric cables.
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.
Key to lay-out
A1
– Electrical control box CM222
CN – Connector
h1
– 1
st
stage hour counter
h2
– 2
nd
stage hour counter
MV – Fan motor
SB
– Reset indicator
SO – Ionization probe
TB
– Burner earth
TL
– Limit thermostat
TR
– 2
nd
stage thermostat
TA
– Ignition transformer
TS
– Safety thermostat
T6A – Fuse
V10 – V1
V11 – V2
X..
– Socket
XP.. – Socket
MIN. output
MAX. output
CO
2
(%)
O
2
(%)
CO
2
(%)
O
2
(%)
METHANE
8
6.6
9
4.9
LPG
9.5
6.4
10
5.6
Probe
Connector
Control box
D5006
Fig. 12
WARNING
The section of the conductors must be at least
1mm
2
(unless requested otherwise by local stand-
ards and legislation).
