Unigas PBY1025 Manual Of Installation - Use - Maintenance page 13

Progressive, fully-modulating heavy oil burners

Table of Contents

Fan motor and pump motor direction

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

ding to the arrow shown on the next picture. In the event of incorrect rotation reverse the three-phase supply and check again the rota-

tion of the motor.

NOTE: burners are supplied for three-phase 400 V supply, and in the case of three-phase 230 V supply it is necessary to modify the

electrical connections inside the terminal box of the electric motor and replace the thermal cutout relay.

Connecting the oil heating resistors

2.4 - 4.5 kW

400 V

18 - 24 kW

400 V

C.I.B. UNIGAS - M039126CE

230V

Fig. 8

230V

Fig. 10

8 - 12 kW

400 V

Fig. 9

ELECTRIC MOTOR CONNECTION

400 V

Fig. 11

230V

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Pby1030 Pby1040