19
(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.
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.
Field Wiring Diagram
RL 190/M with burner mounted LAL flame safeguard
RL 190/M
208 -
230 V
460 V
575 V
F
A
T25
T20
T15
S
AWG
12
12
12
D2291
Motor Connection
D3686
