6 Installation
6
26
Rittal Liquid Cooling Package
6.4.2
Connecting the LCP DX
Power is supplied to the LCP DX via a 5-wire connection
cable (380…415 V, 3~, N, PE). The cable may either be
inserted into the device from above via a brush strip, or
alternatively, if the device is operated in a room with a
raised floor, from below.
Fig. 24:
Electronics box – rear
Key
1
Master-slave connection
2
Network connection
3
Cable gland, collective fault signal
4
Cable gland, power supply
Inside the device, the cable is routed into the electronics
box via the large cable gland in the centre (fig. 24,
item 4). It is connected to the appropriately labelled ter-
minals (PE, L1, L2, L3, N) in the electronics box.
Fig. 25:
Connection terminals in the electronics box
Key
1
Cable gland, collective fault signal
2
Cable gland, power supply
3
Terminals 24 and 27 (jumpered), floating
4
Terminals for connection cable
5
Network connection
Remove approximately 45 mm from the rubber
sheathing of the flexible cable.
Trim the neutral conductor (N) and the three phase
conductors (L1, L2, and L3) to a length of approxi-
mately 35 mm. Leave the length of the PE conductor
at approximately 45 mm.
Remove approximately 9 mm from the insulation of all
conductors with a suitable tool.
Fig. 26:
Dimensions for removing the rubber sheathing and in-
sulation
Attach wire end ferrules without insulating collar to the
ends of the cables, using a four-jaw pressing tool.
Connect the LCP DX using an all-pole isolating device
as described in DIN EN 60204-1, section 5.3. This iso-
lating device must ensure at least 3 mm contact open-
ing when switched off.
The customer should provide a pre-fuse in the supply
line to the LCP DX, as specified on the rating plate of
the device.
6.4.3
Connecting the external condenser
Connecting the external condenser entails simply plug-
ging it into the external power supply. Internally, the con-
denser is fully wired, and no connection is needed be-
tween the LCP DX and the external condenser (via a
data cable etc.). The fan speed of the condenser is con-
trolled via the system pressure.
3
4
2
1
2
1
2
1
4
2
3
5
1
Note:
A voltage of at least 380 V is required to start
the device.
If the mains voltage briefly drops 10% below
380 V with the system operational, it will not
malfunction.
Danger!
Take utmost care not to short-circuit
one of the phases with the zero conduc-
tor or the earth conductor. Otherwise,
there is a risk of damage or injury.
45
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