Electrical Connections; Cool Dx - Swegon COOL DX Series Installation And Maintenance Instructions Manual

4

ELECTRICAL CONNECTIONS

The cross sectional dimension of the power supply cable
should take into consideration the ambient temperature
and the way the cable is run.
Important
Electrical installations must be carried out by an authori-
sed electrician.
4.1 Power connection

4.1.1 COOL DX

Incoming power supply
Sizes 08-20, all capacity variants and size 30, cap. variant 1:
5-wire system, 400 V.
Size 30, capacity variants 2 and 3, and sizes 40-80, all ca-
pacity variants:
4-wire system, 400 V.
Sizes 08-40, 60-1/2
Open the inspection door in front of the electrical equip-
ment cubicle.
Open the inspection door of the electrical equipment cubi-
cle.
Pull the incoming cable for power supply through pre-drilled
hole in the cover panel of the cooling unit (supplied cable
gland is mounted), through the space for compressors and
through the cable gland of the electrical equipment cubicle.
Locate the cable in a safe way. Make sure that the cable
does not touch the compressors or other components, since
surfaces could be hot or vibrate.
Connect the incoming power supply to the safety switch
situated in the electrical equipment cubicle, see the illustra-
tion. The wiring terminal for incoming earth is situated right
next to the safety switch.
See section 10, Technical data.
Sizes 60-3, 80
Remove the cover on the external safety switch.
Connect the incoming power supply to the safety switch,
see the illustration. The wiring terminal for incoming earth
is situated right next to the safety switch.
See section 10, Technical data.
Safety switch block.
We reserve the right to alter specifications.
4.1.2 COOL DX Top
Incoming power supply
Sizes 05-12 all capacity variants:
5-wire system, 400 V.
Dismantle the service hatch in front of the electrical equip-
ment cubicle.
Run the cables in a safe way. Make sure that the cables
does not touch the compressors or other components,
since surfaces could be hot or vibrate.
GOLD RX Top air handling unit
Make sure that the GOLD unit's safety isolating switch is
installed in the correct position on the COOL DX Top cool-
ing unit, see Section 3.4.1. Connection to the GOLD air
handling unit.
Pull the incoming cable for power supply through pre-
drilled hole in the cover panel of the cooling unit (with the
supplied cable gland fitted), to the safety isolating switch
of the Gold unit, see illustration below. For wiring and
fuse protection, see the installation instructions for the
GOLD.
COOL DX Top cooling unit
Pull the incoming cable for power supply to the COOL
DX Top through pre-drilled hole in the cover panel of the
cooling unit (with the supplied cable gland fitted), to the
electrical equipment cubicle of the cooling unit. Connect
the incoming power supply to the safety switch situated in
the electrical equipment cubicle, see the illustration.
See Section 10, Technical data.
The power
supply is con-
nected here
Factory-fit-
ted cables
GB.COOLDX.IN.E.130821
Safety switch of the Safety switch of the
COOL DX Top cool- GOLD RX Top air
ing unit handling unit
Safety isolating switch block.
Cover panel
Service hatch
The power
supply can be
connected here
Factory-fitted
cables
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