Unigas R512A, Инструкция по эксплуатации

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C.I.B. UNIGAS - M039240CA
17
ELECTRICAL CONNECTIONS
To execute the electrical connections, proceed as follows:
1 remove the cover from the electrical board, unscrewing the fixing screws;
2 execute the electrical connections to the supply terminal board as shown in the following diagrams,
3 check the direction of the fan motor (see next pargraph)
4 refit the panel cover
Rotation of fan motor
Once the electrical connection of the burner is executed, remember to check the rotation of the fan motor. The motor should rotate
according to the indication on the body. In the event of wrong rotation, reverse the three-phase supply and check again the rotation of
the motor.
NOTE:
(
except for
R525A):
burners are supplied for three-phase 400V supply, and in the case of three-phase 230V supply it is
necessary to modify the electrical connections into the terminal box of the electric motor and replace the overload tripped
relay.
Note on elecrtical supply
If the power supply to the burner is 230V three-phase or 230V phase-phase (without a neutral), with the Siemens LME2... control box,
between the terminal 2 on the board and the earth terminal, an RC Siemens RC466890660 filter must be inserted.
Key
C - Capacitor (22nF/250V)
LME - Siemens control box
R - Resistor (1Mohm)
RC466890660 - RC Siemens filter
Fig. 12
Respect the basic safety rules. make sure of the connection to the earthing system. do not reverse the phase and
neutral connections. fit a differential thermal magnet switch adequate for connection to the mains.
ATTENTION: before executing the electrical connections, pay attention to turn the plant’s switch to OFF and be
sure that the burner’s main switch is in 0 position (OFF) too. Read carefully the chapter “WARNINGS”, and the
“Electrical connections” section.
WARNING: The burner is provided with an electrical bridge between terminals 6 and 7; when connecting the high/
low flame thermostat, remove this bridge before connecting the thermostat.
IMPORTANT: Connecting electrical supply wires to the burner teminal block MA, be sure that the ground wire is
longer than phase and neutral ones.
CAUTION: adjust the thermal cut-out according to the motor rated current value.
SIEMENS
LMV2..
X03-4 (N)