Riello GAS 3, Инструкции по установке, использованию и обслуживанию

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41 20144819 GB
Appendix - Electrical panel layout
WIRING DIAGRAM KEY
DIAGRAM (A)
C Capacitor
CMV Motor contactor
F1 Filter to protect against radio disturbance
K1 Relay
RMG Control box
MB Burner terminal strip
MV Fan motor
PA Air pressure switch
RT Thermal relay
SO Ionisation probe
SP Plug-socket
TA Ignition transformer
TB Burner earth
DIAGRAM (B)
Electric connection without gas valves leak detection con-
trol device
Electrical connection with gas valves leak detection control
device
IN Burner manual stop switch
MB Burner terminal strip
PG Min. gas pressure switch
H Remote lockout signal
S1 Lockout signal of the remote leak detection control
TL Limiter control device:
shuts down the burner when the temperature or the
boiler pressure reaches the pre-set value
TS Safety limit control device:
intervenes in case of TL failure
VR1 1st stage gas valve
VR2 2nd stage gas valve
VS Safety valve
XP Plug for leak detection control
WARNING
In the case of a phase/phase power supply, it is
necessary to install a jumper in the control box ter-
minal board, between clamp 6 and the earthing
clamp.
WARNING

These models leave the factory preset for a
400 V power supply.

If 230 V power supply is used, change the
motor connection from star to delta and
change the calibration of the thermal relay as
well.
WARNING
The leak detection control takes place immediate-
ly before each burner start-up.