Electrical Connections - Riello RLS 70 Installation, Use And Maintenance Instructions

(A)
WITHOUT LEAK DETECTION CONTROL DEVICE
(B)
WITH VPS LEAK DETECTION CONTROL DEVICE
(C)
CALIBRATION OF THERMAL RELAY
(D)
RLS 70
230 V 400 V
F A 6A aM 4A aM
12A gG 8A gG
L 2 1.5
mm
(E)
RLS 100
230 V 400 V
8A aM 4A aM
16A gG 8A gG
1.5 2.5 1.5
D1174
20081670
20081671
D867
RLS 130
230 V 400 V
10A aM 6A aM
20A gG 12A gG
2.5 1.5
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ELECTRICAL CONNECTIONS

Use flexible cables according to EN 60 335-1
Regulations:
• if in PVC sheath, use at least HO5 VV-F;
• if in rubber sheath, use at least H05 RR-F.
All the wires to connect to the burner terminal
strip 8)(A) must enter through the supplied fair-
leads.
The fairleads and hole press-outs can be used
in various ways; the following lists show one
possible solution:
1- Pg 13.5 Three-phase power supply
2- Pg 11 Single-phase power supply
3- Pg 11 Remote control device TL
4- Pg 9 Remote control device TR
5- Pg 13.5 Gas valves
6- Pg 13.5 Gas pressure switch or gas valve
leak detection control device
7- Pg 11 Open the hole, if a pipe union is to
be added
LAYOUT (B)
Electrical connection without leak detection
control device
LAYOUT (C)
Electrical connection with leak detection
control device
Gas valve leak detection control takes place
immediately before every burner start-up.
Fuses and cables cross-section layouts (B-C),
see table (D).
Cross-section when not indicated: 1,5 mm
KEY TO LAYOUTS (B) - (C)
IN - Burner manual stop switch
XP - Plug for leak detection control device
MB- Burner terminal strip
PG- Min. gas pressure switch
RS- Remote lock-out reset button (if present)
S - Remote lock-out signal
S1 - Remote lock-out signal of leak detection
control device
TR - High-low mode load remote control system:
controls operating stages 1 and 2. If the
burner is to be set up for single stage
operation, replace the remote control
device TR with a jumper.
TL - Load limit remote control system:
shuts down the burner when the boiler
temperature or pressure reaches the pre-
set value.
TS - Safety load control system:
operates when TL is faulty.
VR1-Adjustment valve 1st stage
VR2-Adjustment valve 2nd stage
VS - Safety valve
LAYOUT (C)
Calibration of thermal cut-out
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, 400V, the cursor
should be positioned to "MIN".
• If the motor is delta-powered, 230V, the cur-
sor should be positioned to "MAX".
Even if the scale of the thermal cut-out does not
include rated motor absorption at 400V, protec-
tion is still ensured in any case.
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