TLT-Turbo GmbH
Installation, operating and maintenance instructions.
For axial flow fans
Page 8
Series fan division
Bad Hersfeld
Type AXO ... / ...
of 12
MBW-AXO.DOC
Issue: 03.2004
Connection has to be made by an electrician according to VDE regulations.
Observe the indications on the nameplate!
Compare mains voltage!
Connect the motor as shown on the circuit diagram in the conduit box.
If cable entries in the conduit box are not used, they have to be carefully locked to
prevent dust and moisture from entering the conduit box. Tighten all contact
screws and nuts properly, to avoid transition resistance.
Screwed cable glands have to be equipped with pull-relief.
•
For outdoors installation the supply cable has to be inserted waterproof from
below or the side into the conduit box on the fan.
•
No local isolator should be mounted on the fan. It should be mounted in the
power supply cable near the fan.
•
Standard motors have no motor protection.
On site the motor has to be protected with an overload current protection.
Upon special wish they can be equipped with barretter (thermal resistor
protection) or thermal contacts. The required tripping units have to be provided
by the customer.
11. Trial run / startup
BEFORE TRIAL RUN AND STARTUP BY ALL MEANS READ
THE SECTION "OPERATIONAL SAFETY" AGAIN.
Proceed as follows:
Clean the fan and remove foreign objects (tools, dirt etc.) before startup of the fan.
Check if all screw joints are tight.
For open inlet and outlet a guard must be mounted. Make sure it is.
The connection pieces in the inlet and outlet and the complete channel system
must be completely mounted.
After having connected the fan motor you have to check if the motor turns to the
correct direction: When looking from the motor side the motor has to turn to the
left. (If you look from the inlet of the impeller, it has to turn to the right). The
direction of rotation must be the same as indicated by the arrow.
If the direction of rotation is wrong, the poles of the motor have to be changed.
(change phases in the conduit box or the switch cabinet.)
Make sure that the impeller does not touch the housing.
Measure the current absorption of the motor and compare it with the max. current
consumption on the nameplate.
