Electrical Connections - Riello PRESS 300 T/N Manuel D'entretien

3.2 ELECTRICAL CONNECTIONS TO THE BURNER TERMINAL STRIP
N 60Hz 380-440V
60Hz 220-254V
H Remote lock-out signal
IN Optional switch on-off burner
MB Burner terminal strip
PS Reset push - button
SA High temperature oil alarm
NOTE:
Check the lock-out by darkening the photo-cell after removal of the cover.
®
ATTENTION HIGH VOLTAGE.
In case of supply 220-254V without neutral, connect the motor and the pre-heater thank through delta (the
®
"star" connection is the original one, made for 380-440V).
NOTE
®
In systems where the run of wiring connecting the thermostat exceeds 20 metres in length, or in places where
the burner is subject to particularly disturbing electromagnetic interference (over 10 v/m), you must insert the
relay-interface kit item number 3010386.
2543871
DIRECT START-UP
(to be carried out by the installer)
60 Hz 220V
A A gG/gL
B A gG/gL
2
C mm
2
D mm
TL Limit control device system
TS Safety control device system
T2 Load control system for 2
Load control system for 3
T3
5
GB
N 60Hz 380-440V
60
60Hz 220-254V
220-254V 380-440V
63 50
63 50
6 4
10 6
nd
stage
rd
stage