Unigas KTP1030 Manual Of Installation - Use - Maintenance Download

Page: 27 / 149

C.I.B. UNIGAS - M039207CB

Electrical connections

To execute the electrical connections, proceed as follows:

remove the cover from the electrical board, unscrewing the fixing screws;

to execute the electrical connections see chapter “Electric wiring diagrams”;

check the direction of the fan motor (see next paragraph)

refit the panel cover.

To execute the electrical connections see the “ELECTRICAL WIRING DIAGRAMS”.

Rotation of fan motor and pump motor

Once the electrical connection of the burner is executed, remember to check the rotation of the motors. The motor should rotate accor-
ding 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.

Oil thermostat adjustment

To find the thermostats, remove the cover of the burner switchboard. Adjust them using a screwdriver on the VR screw as shown in the
next picture.

NOTE:

thermostat

TCI

is provided on burners fired with fuel oil having a 50° E at 50° C viscosity only.

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.

Connecting the oil heating resistors

PUMP MOTOR CONNECTION

Connecting the fan motor

In case of star-delta start-up, connect all the 6 wires, according to the sequence shown in the “Electrical wiring diagrams” chapter. If the
start-up is performes by means of inverter, follow the instructions on the related manual.

TCN - Oil enabling thermostat (Fig. 18)

Adjust this thermostat to a value 10% lower than that showed in the
viscosity-temperature diagram (Fig. 12).

TRS - Resistor safety thermostat (Fig. 18)

The thermostat is set during factory testing at about 190° C.

This thermostat trips when the operating temperature exceeds the set
limit. Ascertain the cause of the malfunction and reset the thermostat
by means of the PR button.

TR - Resistor thermostat (Fig. 18)

Adjust this thermostat to the correct value according to the viscosity-
temperature diagram (Fig. 12) and check the temperature by using a
thermometer with a scale of up to 200° C mounted on the pre-heating
tank.

TCI - Installation enabling thermostat (Fig. 18)

This thermostat is fitted on burners fired with oil at a viscosity of 50° E
at 50° C only. Set the thermostat according to the data showed on
page 20.

Fig. 18

230V

400 V