Operation; Maintenance; Warranty; Assembly Instruction - ONNLINE CK AC Instruction Manual

potentiometer should then be disconnected.
• Some EC motors has tachometer output one
pulse per revolution.
• EMC-COMPATIBLE INSTALLATION OF
EXTERNAL CONTROL LINES: The control cable
must not be longer than 30 m. Screened control
cables must be used when the cable length is
longer than 20 m. When using a shielded cable
connect the shielding to one side only, i.e. only
to the device with the protective ground (keep
cable short and with as little inductance as
possible!). Pay attention to sufficient distance
from power lines and motor wires to prevent
interferences.
Attention! Ensure correct polarity! Never apply
line voltage to analog inputs!
• The EC motor has electronically thermal-/
overvoltage protection.

OPERATION

For technical data please see the product label.
Before starting, make sure that:
• the current does not exceed more than +5% of
what is stated on the label.
• the connecting voltage is in between +6% to
–10% of the rated voltage.
• no noise appears when starting the fan.

MAINTENANCE

• Before service, maintenance or repair begins,
the fan must be tension free and the impeller
must have stopped.
• Attention, look out for sharp edges and
corners.
• Consider the weight of the fan when removing
or opening larger fans to avoid jamming and
contusions.
• Attention! Temperatures up to 85°C can be
present on the controller housing (only for EC
motor).
• Waiting period of at least 3 minutes! (only for
EC motor) Because of internal capacitors,
danger of death exists even after switching
off the device through directly touching the
energized parts or due to parts that have
become energized due to faults. The controller
housing may only be removed or opened when
the power line has been switched off and a
period of three minutes has elapsed since
switching it off.
• When cleaning and maintaining, the fan always
have to be secured when open, so it can't fall
down and cause injury.
• The fan must be cleaned when needed, at
least once a year to maintain the capacity and to
avoid unbalance which may cause unnecessary
damages on the bearings.
• When cleaning the fan, high-pressure cleaning
or strong dissolvent must not be used. Cleaning
should be done without dislodging or damaging
the impeller.
• The fan bearings are maintenance-free and
should be renewed only when necessary.
• Notice the weight of the fan when closing after
inspection/cleaning.
• Mount back all details in reverse order. Check
that the fan is closed and locked before starting.
• Make sure that there is no noise from the fan.
FAULT DETECTION
1. Make sure that there is power to the fan.
2. Cut the power and verify that the impeller is
notblocked.
3. Check the thermal contact (for AC). If it is
disconnected the cause of overheating must
be taken care of, not to be repeated. To restore
the manual thermal contact, cut the power for
a couple of minutes. If it has automatic thermal
contact the resetting will be done automatically
when the motor has cooled.
4. Make sure that the capacitor is connected
according to the wiring diagram (for AC).
5. If the fan still does not work, the first thing to
do is to change the capacitor (for AC).
6. If nothing of this works, contact your fan
supplier.
7. If the fan is returned to the supplier, it must be
cleaned, the motor cable undamaged and nd a
detailed nonconformity report enclosed.

WARRANTY

The warranty is only valid under condition that
the fan is used according to this "Directions for
use" and a regular maintenance has been made
and record. The warrantor is responsible only for
the operation if approved accessories are used.
The warranty does not cover product failures
caused by accessories/equipment from
other manufacturers.

ASSEMBLY INSTRUCTION

Mounting bracket kit for easy suspension of CK
contents:
1. 2 pcs mounting bracket
2. 4 pcs screws