Airwell Westherm 55 [14/16] Electrical connections

Page 13

English

8 - Electrical Connections

8.1 - Unit Connection

Before undertaking any electrical connection, make sure that the fan motor is suitable for electrical power supply. All wiring

must be done in accordance with applicable electrical codes and regulations.

Earthing of unit is imperative.

The manufacturer or its representative will not be held responsible for accidents caused by incorrect or non-existing earthing.

Concerning the unit mounted in horizontal arrangement (vertical discharge), the maximum allowable temperature on the

motor is 40 °C. If the fan is switched off, it is important to check that hot water will not circulate in the coil. If this case may

happen, it is recommended to use a control valve on the coil.

8.2 - Standard Wiring Diagram

The propeller fan unit heaters must be controlled by a

contactor equipped with a thermal protection that

protects the motor against any accidental excess

currents.

Warning

To perform electrical wiring of fan motor, please refer to wiring

diagram supplied in the motor terminal box.