Electrical Connection
CAIR
fricostar
®
FläktGroup DC-2009-0019-GB 2018-01/R9 • Specifications are subject to alteration without notice
45
7
Electrical Connection
7.1
Requirements
Visual inspection of mechan-
ical components
•
Carry out a full visual inspection of the entire unit and installed components.
•
Before you start setting up the unit's electrical connections, check the following:
– The properties of the mains power supply must comply with EN 60204-1 regu-
lations and the power requirements of the unit.
– Let a qualified licensed electrician determine the size of the pre-fuse based of
the unit rated current and the maximum fuse capacity (see wiring diagram).
– The motors must be able to operate at their rated capacity where the input volt-
age with rated frequency is between 95 % and 105 % of the nominal voltage.
7.1.1 On-site routing of cables and cable penetrations by others
•
Avoid cable penetrations and routing of cables near doors, dampers, panel
connections and cover strips.
•
Perform all screw connections and cable openings leak-free.
•
The connecting cables in the fan chamber must be long enough to allow the motor
to be moved easily (e.g. for belt tightening).
•
Use the pre-installed cable conduits for running cables.
•
First install and run all cables, then connect the cable conduits at the unit exit point
or entry point of the switch cabinet. Thus entering of process air into the switch
cabinet is avoided.
•
Remove the sealing plug when running a new cable or replacing an existing one. To
seal the cable conduit again, use a soft material, e.g. Armaflex.
The electrical connection may only be completed by a qualified licensed electri-
cian. Have qualified licensed staff or other individuals with proper professional
training and experience in the relevant accident prevention regulations, as well as
other generally recognized safety and occupational health codes, perform unit
jobs.
Ensure and observe protective measures!
When installing and connecting the unit, also observe protective measures for low-
voltage systems according to the EU Directive as well as regulations and codes of
the local utility providers.
Ensure earthing and potential equalization of the unit, all connected components
and shipment units!
Electrical connection must be assured and documented between all shipment
units (potential equalisation usually to be provided via screw connections).
Connect the entire unit to the same potential.
Passive switch contacts in explosion-protected units may only be used in intrin-
sically safe electric circuits.
Hazardous voltage!
Disconnect all electric power and ensure the power cannot be inadvertently
energised, earth, short-circuit and block off all neighboring live parts. Non-com-
pliance can lead to death or serious injury.
NOTICE!
Wiring to the unit must be completed in accordance with enclosed unit-specific
wiring diagrams and national electrical codes and regulations.
Only separate mains power cable shall be used. Never connect other units to this
mains power cable.
