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AJR Jet Fan | 11
8 Electrical connection
8.1 Safety information
• Observe the 5 rules of electrical safety, see 2.3 Five rules of electrical safety
• Prevent the ingress of water into the connection box.
• The electrical connection must be carried out by qualified persons, see Table 1: Qualifications
• Wear protective equipment during all work in the vicinity of the fan, see 2.2 Personal protective equipment
8.2 Preconditions
• Observe and respect local conditions, regulations, and laws.
• Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
• Safety elements may not be dismantled, circumvented or deactivated.
• Install a circuit breaker in the permanent electrical installation with the appropriate contact opening
8.3 Protecting the motor
• Motor protection must be installed by the customer
• Lead-out temperature monitors must be integrated in the control circuit in such a way that, if a fault occurs, the motor cannot switch
on again automatically after it has cooled down.
• Motor lines and temperature monitor lines should be laid separately on principle.
• Without thermal protection: Use a motor protection switch.
8.4 Field Connections
• Check that the data on the nameplate matches the connection data.
• Complete the electrical connection according to the connection diagram.
• Lay the connection cables in the terminal box in such a way that allows the cover of the terminal box to be closed without resistance.
• Connect the cable end in a dry environment.
8.4.1 Connection Diagram
All connections shall be made according to the follwing diagram:.
Line voltage (L1, L2, L3, ):
• Field power connections are to be made in the electrical box
• The terminal box is provided with a labelled grounding connection.
• The protective grounding must have a cross-section equal to or greater than that of the phase conductor.
Warning
Danger from electrical voltage.
Important
Damage to motor due to overcurrent, overload or short circuit.
Note:
The minimum interval between consecutive starts is 5 minutes.
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