Field Wiring Diagram- Burner Mounted Lal - Riello Burners RL 190/M Installation, Use And Maintenance Instructions

Field Wiring Diagram
RL 190/M with burner mounted LAL flame safeguard
RL 190/M
208 -
460 V 575 V
230 V
F A T25 T20
S AWG 12 12
(A)
FIELD WIRING CONNECTIONS
set by installer
Use flexible cables according to local regulation.
LAYOUT (A)
RL 190/M electrical connection three-phase 208 - 230/460 V
power supply
Key to wiring layouts (A)
H1 - Remote lock-out signal
H2 - Burner on signal
H4 - Power on signal
H5 - Limit satisfied
IN - Manual burner stop switch
MB - Terminal strip
PS - Remote lock-out reset
OC - Operating control.
HL - High limit control.
D2291
T15
12
Motor Connection
N.B.
• The setting of the thermal overload must be according to the total
burner amperage draw.
• The RL190/M burners leave the factory preset for:
- 208-230 V power supply: only in this case, if 460 V power sup-
ply is required, change the fan and the pump motor connection
from delta to star and change the setting of the thermal overload
as well;
- or 575 V power supply;
depending on the burner model (see page 3).
• The RL 190/M burner has been type-approved for intermittent
operation. This means it should be stopped at least once every 24
hours to enable the control box to perform self checks at start-up.
Burner halts are normally provided for automatically by the boiler
load control system.
19
D3686