Pfannenberg DTI 6x01 - Manual (Page 13)

GB
085 408 121a 13/60
CAUTION!
If there is excessive condensate during normal operation
check the sealings of the switch cabinet.
We recommend that you install a door contact switch to
switch off the cooling unit, when the door of the switch cabi-
net is opened, in order to prevent excessive condensate.
8 Installation
8.1 General
• The installation place for the switch cabinet must be selected
such that proper ventilation of the cooling unit is ensured.
• The single units or the units and the wall must be at a distance of
200 mm at least.
• Air circulation in the switch cabinet must not be impeded by built-
in parts.
• The assembly of the cooling unit can be carried out with and
without a cover (external). (The unit must be disconnected from
the power supply!)
• The site of installation must be protected against contamination.
CAUTION!
If the cooling unit is mounted on a switch cabinet door, it
must be confirmed that the hinges can support the addi-
tional weight or that the switch cabinet will not topple over
when the door is opened.
CAUTION! Chips may damage the switch cabinet.
If the required cutouts are only made in the switch cabinet
just before mounting of the cooling unit, make sure that
swarf is not allowed to enter the device hood by using a
cover sheet, for example.
Hint
To facilitate installation with heavy units, M8 lifting eyes can be
screwed into the upper fixing on the equipment housing. Simple
„one man installation“ is thereby possible.
8.2 Installation of side-mounted, bolt-on cooling unit
DTS
The mounting surface of the switch cabinet is to be provided with
cutout(s) and holes for air ventilation openings and for securing the
unit according to the accompanying sheet.
The drawing on the accompanying sheet also shows the location of
the electrical connections and ventilation openings.
1) Make cutout(s) and drillings for the cooling unit, if not already
provided in the switch cabinet (see drawing on accompanying
sheet).
Remove burrs from the cut edges
2) Position the profile seal around the rim of the cutout(s). Position
the seal so that the impact ends are facing downwards.
3) Screw the two threaded studs included in the component pack
into the upper fixing point of the cooling unit. Suspend the unit
from outside onto the switch cabinet using the threaded studs.
4) Use the screws, nuts and washers included in the component
pack to secure the cooling unit on the inner side of the switch
cabinet. Tighten up fixings so that the seal is compressed to a
thickness of 2 mm.
5) The condensate emergency drain is located in the base of the
device.
6) If the cooling unit is mounted without the device hood, plug the
earth cable and the connecting cable to the display unit on the
hood and mount this on the cooling unit.
7) Clamp the cable as shown in the connection diagram (see back
of unit) to the plug (component pack) and connect to the unit.
- conductor size: 0,5 – 2,5mm² or AWG20 - AWG14 (In the
selection of cable size, the relevant regulations must be ob-
served!)
8) Connect the unit to the electrical supply (see Section 8.4).
8.3 Installation of built-in cooling unit DTI
The mounting surface of the switch cabinet is to be provided with a
rectangular cutout as shown on the accompanying supplement
sheet.
The drawing on the supplement sheet shows the location of the
ventilation openings after mounting the unit.
1) Make cutout for the cooling unit, if not already provided in the
switch cabinet (see drawing on accompanying supplement
sheet). Remove burrs from the cut edges
2) From the outside, insert the cooling unit (Pos. 1) into the cutout
and push through until the unit seal engages with the switch
cabinet (Pos. 2). Close the snap-fastener (Pos.4) with an audi-
ble click from the unit on upper side and secure the unit against
falling out.
1 Cooling Unit DTI
2 Switch cabinet wall or door
3 Securing spring
4 Snap
3) On the inside of the switch cabinet, make sure that the securing
springs (Pos. 3) supplied in the component pack rest in their lo-
cations. To do this, compress the springs by hand so that the
securing bracket can be secured in the housing cutout (Pos. A).
In switch cabinets with reinforcing frames, insert the securing
springs in the rear of the housing cutouts (Pos. B).
4) The condensate emergency drain is located in the base of the
device.
5) If the cooling unit is mounted without the device hood, plug the
earth cable and the connecting cable to the display unit on the
hood and mount this on the cooling unit.
6) Clamp cables in accordance with the connection diagram (see
rear of unit) to the plug-in connectors (enclosed package) and
connect to the unit.
- lead cross-section: 0.5 – 2.5 mm², and/or AWG20 – AWG14
(for the selection of the cable cross-section the relevant provi-
sions are to be taken into account).
7) Connect the cooling unit to the power source (see section 8.4).
8.4 Power connection
CAUTION!
• The cooling unit must be connected to the mains by means of a
disconnecting device with a contact gap of at least 3 mm when
switched off.