Riello RS 190 Instrucciones De Instalación, Montaje Y Funcionamiento página 13

Model
RS 190 - 230 V
RS 190 - 400 V
(A)
Calibration of thermal cut-out
16 A
9,5 A
11
N.B.
The RS 190 burner has been type- approved for
intermittent operation. This means it shoulds
compulsorily be stopped at least once every 24
hours to enable the control box to perform
checks of its own efficiency at start-up. Burner
halts are normally provided for automatically by
the boiler load control system.
If this is not the case, a time switch should be fit-
ted in series to IN to provide for burner shut-
down at least once every 24 hours.
The RS 190 burner is factory set for two-stage
operation and must therefore be connected to
control device TR.
Alternatively, if single stage operation is
required, instead of control device TR install a
jumper lead between terminals 6 and 7 of the
terminal strip.
WARNING: Do not invert the neutral with
the phase wire in the electricity supply
line. Inverting the wires will make the
burner go into lock-out because of firing
failure.