Riello PRESS 450 T/N Installation, Use And Maintenance Instructions page 24

3.3 ELECTRICAL CONNECTIONS TO THE BURNER TERMINAL STRIP
H Remote lock-out signal
H1 Motor trip signal
IN Optional switch on-off burne
MA Start-up terminal strip
MB Burner terminal strip
PS Reset push - button
NOTE:
Check the lock-out by darkening the photo-cell after removal of the cover.
❱
ATTENTION HIGH VOLTAGE.
In case of supply 230V without neutral, connect the pre-heater thank through delta (the "star" connection is
❱
the original one, made for 400V).
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.
5845
STAR-TIRANGLE START-UP
(to be carried out by the installer)
SA High temperature oil alarm
TL Limit control device system
TS Safety control device system
T2 Load control system for 2
T3 Load control system for 3
8 GB
~
~
D2625
230V 400V
A A gG/gL 63 50
2
B mm 10 6
2
C mm 6 4
2
D mm 6 4
nd
stage
rd
stage