Riello P 300 P/G Instrucciones De Instalación, Uso Y Mantenimiento página 65

(1): for two stages progressive version
(2): for modulating version
NOTE
- Check the lock-out by darkening the photo-cell after re-
moval of the cover.
Attention: high voltage.
Key to layout
BP Pressure probe
BT Temperature probe
I1 Burner manual stop switch
MB Burner terminal block
S Remote lock-out signal
TL Load limit remote control
TR High-low mode load control system
TS Safety load control system
a-d Red
b-c White
5482
ELECTRICAL WIRING TO THE TERMINAL BOARD
STAR - DELTA START UP
(carried out by the installer)
D2704
system
(1)
A A gG/gL
B
C
9
GB
(1)
230V 400V
50 40
2
mm 6 4
2
mm 4 2,5
(2)
D2575