KEY TO LAY-OUT
PG – Minimum gas pressure switch
S3 – Remote lock-out signal
(220V - 0.5 A max.)
T6A – Fuse
TL – Limit thermostat
TS – Safety thermostat
V10 – Safety valve
V11 – Adjustment valve
Ionization probe
Ignition transformer
Electrode
Motor
Capacitor
Burner
220V
~
60Hz
Terminal board
Air pressure
White
Blue
Brown
VERSION
FOR GAS LEAK CONTROL DEVICE
(DUNGS VPS 504)
Control box
RMG 88.620A2
D4352
Connector
earth
Black
In the case of phase-phase
feed, a bridge must be fitted
on the control box terminal
board between terminal 6 and
the earth terminal.
switch
ATTENTION:
❱
Do not swap neutral and phase over, follow the diagram shown care-
fully and carry out a good earth connection.
❱
The section of the conductors must be at least 1mm². (Unless requested
otherwise by local standards and legislation).
❱
The electrical wiring carried out by the installer must be in compliance
with the rules in force in the country.
❱
Verify that the burner stops by operating the boiler control thermostats
and that the burner locks out by separating the red ionisation probe lead
connector.
NOTES
The burners have been type-approved for intermittent operation.
This means they must stop at least once every 24 hours in order to allow the
electrical control box to check its efficiency on start-up.
The boiler limit thermostat (TL) normally ensures the burner halts. If this does
not happen a time switch halting the burner at least once every 24 hours must
be applied in series to limit thermostat (TL).
TO BE DONE BY
THE INSTALLER
CARRIED-OUT
IN THE FACTORY
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