Installation - Nederman Fan Starter 11 PTC Manual De Instrucciones

Fan Starter 11/18.5/22 PTC
ENGLISH

INSTALLATION

Study these installation instructions carefully before pro ceeding.
Failure to observe the warnings and instructions given may cause a
malfunction or personal hazard.
Warning! Before you begin read "Safety" on page 4.
Dimension the cables and fuses in accordance with the motor current.
Always pay attention to local legislation when sizing the cables and fuses.
Small area in a 24 V system can cause a poor short circuit protection. For
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terminals 3 -114 use minimum 1,5 mm if cable is up to 10 m long and minimum
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2,5 mm if cable is up to 20 m long. Larger area if cable is longer.
The current value for the motor overload protector has to be set. For NCF EX shall
the value be maximum 0,9 x normal value.
For the Y/D starter set the value to 0,58 x 0,9 x motor current at 400 V(D). See the
motor plate.
The time relay for the Y-D time (K4T) is pre-set to 15 s.
During the first start pay attention to how the fan speeds up, if possible measure
the motor current. The Y-D time shall be adjusted so the contactors switch over
just when the fan doesn't speed up any more and the current stop decreasing. The
Y-contactor is dimensioned for Y-D time = 20 s maximum.
The full scale for K4T is 1 min.
Connect the motor in accordance with the wiring diagram, general.
Check the fan direction, if it is necessary to change the direction it is important to
do it in accordance with the wiring diagram, general.
A separate safety/maintenance switch shall be installed close to the fan, if the fan
and the Fan Starter are mounted in different locations. The control contact in the
safety/maintenance switch shall be connected to the Fan Starter (terminal 109-110).
To make the start of the fan easier the airflow could be restricted by a damper
during the start. FilterMax has a function to delay the opening of the down time
damper at fan start. If FilterMax and a down time damper is installed, set the "dA"
time according to the actual fan start time, for a Y/D start normally 15-20 s. See
FilterMax instruction manual. (Ver. 2.1 or later).
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