SYSTEMP – Installation Operation Manual (IOM SYSTEMP rev.N)

Table Of Contents
93
12.2.3 FAN MAINTENANCE
For fans maintenance the following instructions must be observed, as well as full compliance with safety obligations regard-
ing use of the equipment:
1) Check the general condition: corrosion, fastening, cleanliness.
2) Verify the noise of the motor.
3) Check the impeller: vibrations, unbalancing.
4) Verify the absorbed current.
5) Clean the impeller and the motor.
12.2.4 REPLACING THE FANS
To replace the fans the following instructions must be observed, as well as full compliance with safety obligations regarding
use of the equipment:
1) Set the main switch to "0".
2) Open the panels via the relevant safety locks.
3) Disconnect the electrical connections from the terminal block of the fan.
4) Remove the fan from its seat.
5) Replace with an original spare.
6) Carry out electrical connections from the terminal board of the fan as specied in the wiring
diagram.
7) Close the panels and return the main switch to “I”.
Plugs and sockets for quick connection
12.2.5 FAN AUTO-ADDRESSING IN CASE OF REPLACEMENT
During the auto-addressing process the NEW FANS will have to be connected ONE AT A TIME.
In the event of fas replacement, the SySmart
3
microprocessor features a check and auto-addressing function of the Modbus
master network. In the event of a communication alarm of one or more fans the SySmart
3
microprocessor will start checking whether
there are new fans in the network.
If the SySmart
3
microprocessor nds a non congured fan (new) in the network, it will change the address to that of the
faulty one. If there is an alarm on several fans, this fan will be given the rst free address.