Riello Burners RL 70 Instrucciones De Instalación, Funcionamiento Y Mantenimiento página 10

RL 70 - RL 100 - RL 130 ELECTRICAL CONNECTIONS
(A)
RL 70
208-230 V 380-460 V 208-230 V 380-460 V 208-230 V 380-460 V
F A gG/gL 10
L 1,5
2
mm
(B)
RL 70 - RL 100 - RL 130 CALIBRATION OF THEREMAL RELAY
(C)
D3291
RL 100
6 16 10
1,5 1,5 1,5
ELECTRICAL CONNECTIONS (A)
set up by the installer
Use flexible cables according to regulation EN
60 335-1:
• if in PVC boot, use at least H05 VV-F
• if in rubber boot, use at least H05 RR-F.
All the cables to be connected to the burner ter-
minal strip 8)(A) must be routed through the fair-
leads.
The fair leads and precut holes can be used in
various ways. One example is given below:
1 - Pg 13,5 Three-phase power supply
2 - Pg 11
3 - Pg 11
4 - Pg 9
5 - Pg 9
6 - Pg 11
7 - Pg 13,5 Fitting hole for fair lead, if required
D3312
SCHEMA (B)
RL 70 - 100 - 130 Models electrical connection
three-phase 380/460 V power supply with
neutral phase wire.
Fuses and cables section layout (B), see table.
Cable section not indicated: 1.5 mm
Key to wiring layout (B)
h1 - 1st stage hourcounter
h2 - 2nd stage hourcounter
IN - Manual burner stop switch
MB - Terminal strip
S
TB - Burner ground (earth) connection
TL - Limit control device system:
TR - High-low mode control device system:
TS - Safety control device system:
Important: the burner is factory set for two-stage
operation and it must therefore be connected to
the TR remove control device to command light
oil valve V2.
Alternatively, if single stage operation is re-
quired, instead of control device TR install a
jumper lead between terminal 11 and 12 of the
terminal strip.
LAYOUT (C)
Calibration of thermal cut-out 17)(A)p.3
This is required to avoid motor burn-out in the
event of a significant increase in power absorp-
tion caused by a missing phase.
• If the motor is star-powered, 380/460 V, the
• If the motor is delta-powered, 208/230 V, the
RL 130
Even if the scale of the thermal cut-out does not
include rated motor absorption at 380/460 V,
protection is still ensured in any case.
16 10
NOTE
1,5 1,5
• Burners RL 70 - 100 - 130 leave the factory pre-
• The supply to the auxiliary circuits must be 220-
• The RL 70 - 100 - 130 burners have been type-
D3191
9
Single-phase power supply
Control device TL
Control device TR
Fitting hole for fair lead, if required
Fitting hole for fair lead, if required
- Remote lock-out signal
This shuts down the burner when the boiler
temperature or pressure exceeds the set-
point value.
This controls operating stages 1 and 2 and
is necessary only for two-stage operation.
This operates when TL is faulty.
cursor should be positioned to "MIN".
cursor should be positioned to "MAX".
set for 380/460 V power supply. If 208/230 V
power supply is used, change the motor con-
nection from star to delta and change the set-
ting of the thermal cutout as well.
230 V.
approved for intermittent operation. This
means they should compulsorily be stopped at
least once every 24 houres to enable the con-
trol box to perform checks of its own efficiency
at start-up. Burner halts are normally provided
for automatically by the boiler load control sys-
tem.
WARNING
Do not invert the neutral with the phase wire
in the electricity supply line.
2
.