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4.12 Control box for controlling the air/fuel ratio (BT340)
Warning
To avoid accidents, material and/or environmental
damage, observe the following instructions!
The control box is a safety device! Avoid opening
WARNING
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!
The operators must be aware that the incorrect
setting of the visualisation and operation control
box, and of the positions of the fuel and/or air ac-
tuators, can cause dangerous conditions during
burner operation.
For the safety and reliability of the control box, comply also with
the following instructions.
After commissioning and after each maintenance interven-
tion, check the combustion gases values in the overall per-
formance control!
All activities (assembly, installation, assistance) should only
be carried out by qualified specialist personnel
Before carrying out work in the connection area, disconnect
the power supply voltage of the system at all the poles.
Secure it, then, from depression and make sure there is no
voltage. if the system has not been deactivated there is a
risk of an electrical shock.
Ensure the BT340 is protected from electrical contact and all
the electric components through the assembly. The cover
should meet EN 60730 standards concerning the implemen-
tation, stability and protection.
After carrying out all the activities (assembly, installation,
assistance etc.) check the wiring and the parametrisation
making sure they are in a good state.
If the appliances fall or are jolted, do not restart them. The
safety functions might be compromised even without any
noticeable damage on the outside.
When programming the configuration curves, the regulator
constantly checks the quality of the system's combustion (for
example using a station for analysing the combustion
gases). If the combustion values are unsatisfactory or in the
event of dangerous conditions, the regulator adopts suitable
measures, like for example manually disarming the system.
These instructions describe numerous possible applications
and should be used as guidelines. Please always check and
corroborate the fact the system is operating correctly by
means of functional tests on the test bench when the system
is operating! Comply with the additional instructions to
ensure the BT340 is safe and reliable.
Avoid the penetration of dew and humidity. If necessary,
before starting the system, make sure it is dry!
Avoid static charges. On contact they destroy the appli-
ance's electrical components.
Technical description of the burner
13
GB
Technical data
Model
Electrical power
Input power
Cable length
- control load
- external
reset button
- fuel valve
- other lines
Weight
Environmental operating conditions:
- climatic condition
- mechanical condition
- temperature interval
Electrical safety
20127488
BT340
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 (dew not allowed)
IP40 (housing)
IP20 (terminals)
20168262
Fig. 6
Tab. F
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