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3.12 Control box for the air/fuel ratio (BT330)
Warnings
To avoid accidents, material or environmental
damage, observe the following instructions!
The control box is a safety device! Avoid opening
WARNING
or modifying it, or forcing its operation. Riello
S.p.A. cannot assume any responsibility for dam-
age resulting from unauthorised interventions!
Risk of explosion!
An incorrect configuration can provoke fuel over-
charging, with the consequential risk of explosion!
Operators must be aware that incorrect settings
made on the operating unit and incorrect settings
of the fuel and / or air actuator positions can lead
to dangerous burner operating conditions.
For the safety and reliability of the equipment, also follow these
guidelines.
After commissioning and after each maintenance action
check the exhaust gas values across the entire power
range!
Qualified specialist staff are required to carry out all activities
(assembly, installation, servicing, etc.).
Before working in the connection area, switch off the power
supply to the plant from all poles. Ensure that it cannot be
switched back on and that the plant is voltage-free. There is
a risk of electric shock when the plant is not switched off.
Place and secure the protection against contact on the
BT300 and on all connected electrical parts. The cover must
fulfil the design, stability and protection requirements of EN
60730.
After each activity (e.g. assembly, installation, servicing,
etc.) check wiring and parameters to make sure it is in good
working condition.
If the equipment is dropped or suffers impact, you should no
longer commission it. The safety functions may also be
impaired but fail to show any obvious external damage.
When the ratio curves are being programmed, the adjuster
will continually monitor the quality of the plant's combustion
(e.g. using an exhaust gas analysis station). In the event that
the combustion values are inadequate or the conditions are
potentially harmful, the adjuster will take suitable action, e.g.
switch off the system manually.
These operating instructions describe many possible appli-
cations and functions and should be used as guidelines.
Carry out functional tests on the test bench and/or in the
plant application to ensure correct functioning and document
the results.
Condensation and humidity are to be avoided. If necessary,
make sure that the installation is sufficiently dry before you
switch it on.
Avoid static charge having a destructive effect in case of
touching the device's electronic components.
20171664
Technical description of the burner
12
GB
Technical data
Model
Power supply
Power consumption
Cable length:
- control Load
- external reset button
- Fuel valve
- other lines
Weight
Environmental conditions:
- climatic conditions
- mechanic conditions
- temperature range
Electronic safety
S9619
BT330
230 V +10/-15% 50-60 Hz
max. 30 VA
Max. 20 m
Max. 20 m
Max. 10 m
Max. 20 m
1 kg
Class 3K5 (DIN EN 60721-3)
Class 3M5 (DIN EN 60721-3)
-20...+60 °C
(condensation is prohibited)
IP40 (housing)
IP20 (terminals)
Fig. 7
Tab. F
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