Idiomas disponibles
Idiomas disponibles
ENG
1. Cooling unit application
The EGO series cooling units described in this manual
are designed and built to cool the air inside electrical
switchboards in order to protect components sensiti-
ve to thermal shock. They also provide IP54 ingress
protection against contaminating and aggressive/cor-
rosive substances.
1.1 Intended use
The EGO cooling unit must be used:
- For cooling electrical switchboards
- Within the temperature and voltage-supply limits
indicated on the data plate (F.06, pos. 5) of the
cooling unit and also given in table F.14 of this
manual
- Away from any sources of heat or hot air
- In an environment with adequate air exchange
- On switchboards with IP54 rating or higher. If
these requirements are not respected, excessive
condensation build-up may occur. As a consequen-
ce, cable entry points or any other openings in the
cabinet should be well sealed.
To ensure correct operation, the specified schedu-
led maintenance operations (see section 10) must
be performed regularly. Incorrect or careless use
may cause irreparable damage to the cooling unit
and may lead to hazardous situations.
1.2 Improper use
The EGO cooling unit must NOT be used:
- Under any condition except those described in
section 1.1
- Outdoors, with excessive concentration of solid
contaminants and/or aggressive chemical conta-
minants
- With the doors of the electrical switchboard open,
or installed on enclosures without a minimum IP
54 rating, due to excessive condensate formation
- With the temperature set below the dew point of
the ambient air
- In explosive atmospheres, or those with aggres-
sive chemicals or high concentrations of dust or oil
suspended in the air
- In potentially inflammable atmospheres
- Exposed to the elements
- With the condensate line closed or blocked off, or
in any case in which the condensate is not allowed
to run off freely
- Without the front panel
- With the cooling unit intake and outlet air flows
obstructed by walls or objects that are too close To
this end, check the minimum distances as regards
the external air flow (figure F.02), and make sure
there are no obstructions caused by the switchbo-
ard components as regards the internal air flow.
2. Supply
Inside the packaging you will find:
1 Cooling unit
1 Electronic thermostat
1 Installation, operation and maintenance manual
1 CE conformity certificate
1 Test certificate
1 A4 drilling template (F.06, p.4)
1 Installation kit containing (F.06):
- Flanged nuts (p.1)
- Flat washers (p.2)
- Grub screws (p.3)
2 Connectors, one for the power supply and one
for the signals (F.5)
1 Self-adhesive sealing strip (F.06, p.4)
1
Flexible
hose
for
condensate
12x2x100 mm (F.10)
Lifting eyebolts (F.03)
3. Updates
TEXA INDUSTRIES S.r.l. reserves the right to
update its products and the corresponding ma-
nuals based on technical progress without prior
notice. Please note that at the time of sale, this
manual and the corresponding product may not
be considered inadequate only because they are
not subject to the above-mentioned updates.
4. Technical features
(figures F. 14 and F. 15)
The unit's technical features and CE marking are
given on the data plate attached to the cooling unit.
5. Transport and handling
During transport and storage the cooling unit must
be kept in a vertical position, as indicated on the
packaging (figure F.01), and must not be expo-
sed to temperatures above 70°C or below -20°C.
Upon receipt, check that the packaging has not
been damaged during shipping.
To lift the cooling unit in a safe manner the two
supplied M6 eyebolts may be used; these should
be fitted into the threaded inserts located on the
top of the cooling unit (figure F.03).
6. Installation
Installation of the unit should only be performed
by qualified and authorised personnel.
The cooling unit must be installed with the enclosure
air intake hole in the highest possible point.
Ensure the fixing elements and couplings will not
interfere with the equipment inside the enclosure
itself.
If the cooling unit is to be installed on a door,
make sure the door can take the weight.
The unit must be installed in the vertical position
indicated. Maximum permitted deviation from the
vertical is 2°.
Disconnect power before starting any work inside
the switchboard. The cooling unit must be instal-
led on the outside of the electrical switchboard. If
semi-recessed installation is required (fig. F.06),
the corresponding accessory must be used. This
is available upon request as an optional extra. De-
pending on the installation option, drill the holes
and make the necessary cuts in the switchboard
(figure F.06) using the drilling template supplied
with the unit. Fit the sealing strip on the cooling
unit on the side connected to the enclosure and
follow the assembly diagram (figure F.06).
7. Condensate discharge hose
The condensate which, depending on the ambient
temperature and humidity conditions, forms on
the heat exchanger which cools the enclosure air,
is not a malfunction but a normal phenomenon of
the cooling unit. In models EGO04-EGO06, this
condensate is taken outside through a hose at the
bottom of the cooling unit. The transparent plastic
hose, supplied with the unit, must be connected to
this outlet (figure F.10). This plastic hose can be
connected to another one with the same diameter
to carry the condensate to another point, allowing
it to be discharged where there can be no slipping
hazard for personnel. In this case, make sure the
condensate flows without any hindrance. Avoid
horizontal lengths of more than 0.5 metres, uphill
sections and the accidental formation of traps
(figure F.07). The end of the condensate discharge
hose must always be free and not underwater, so
never place the end of the discharge hose inside
a condensate collection container (figure F.08).
Models EGO08 to EGO40 are fitted with a conden-
sate evaporation device which operates via the hot
drainage
(outlet) tube of the compressor (Fig. F.13). These
models nevertheless have an emergency conden-
sate outlet which can be carried outside as descri-
bed above. If the cooling unit is used with the doors
of the enclosure open, excessive quantities of con-
densate will form and this is an unauthorised condi-
tion of use (figure F.09). We suggest using a position
switch on the door connected to the cooling unit's
digital input to stop the unit if the door is opened.
(See section 8.3)
8. Electrical connection
8.1 Safety
Warning! Electrical connections must only be
performed by specialised and authorised per-
sonnel. Switch power off to the enclosure befo-
re making the connection. Check that there is no
power to the switchboard and that the supply volta-
ge corresponds to the characteristics given on the
cooling unit's data plate. The power supply must be
protected using appropriate time-delay fuses (type
T) or circuit breakers with K-curve, per the indica-
tions given in table F.14. Connect the power-supply
cables to the black connector included with the unit,
following the indications given in figure F.04. Discon-
nect the cooling unit before performing testing on
the enclosure.
8.2 Two-phase models with autotransformer
(EGO06G / EGO08G / EGO10G / EGO12G /
EGO16G)
These two-phase models can operate with two
different supply voltages: 440V 2~50-60Hz and
400V 2~50-60Hz. If the available power supply
is 440V 2~50-60Hz, connect terminals L1(0) and
L3(440) on the terminal board (figure F. 04). If,
on the other hand, the available supply voltage
is 400V 2~50-60Hz, connect terminals L1(0) and
L2(400) on the same terminal board.
(EGO10K / EGO16K)
These two-phase models can operate with two
different supply voltages: 460V 2~50-60Hz and
400V 2~50-60Hz. If the available power supply
is 460V 2~50-60Hz, connect terminals L1(0) and
L3(460) on the terminal board (figure F. 04). If,
on the other hand, the available supply voltage
is 400V 2~50-60Hz, connect terminals L1(0) and
L2(400) on the same terminal board.
8.3 Alarm pins
(figure F.05)
All input/output signals from the electronic control
unit are managed via the grey pin:
- Alarm signals from the electronic control unit can
be taken from terminals 1 and 2
- A digital input for voltage free contacts is availa-
ble on terminals 3 and 4
The cooling unit's electronic control unit is pro-
grammed to generate an alarm when the digital
input is open. When the digital input is not being
used, it is therefore necessary to bridge it by con-
necting terminals 3 and 4 of the grey pin together
with a cable.
9. First start up and adjustment
If, prior to installation, the cooling unit was left in
an incorrect position (figure F.1), wait at least 8
hours before switching it on. Otherwise, 30 minu-
tes is more than enough time for the oil to return
to the compressor, after which the cooling unit
can be powered up. The enclosure air intake fan
starts working immediately, making the tempera-
ture inside the enclosure even. If this temperatu-
re exceeds 2K above the set point, both the com-
pressor and external air fan will turn on, causing
the cooling cycle to start. This then stops when
the inside temperature reaches the set point. The
thermostat is factory-set to 35°C. The set point
can be set to between 20°C and 50°C. In order to
save energy and minimise the production of con-
densate, it is nevertheless recommended it not be
set below 30 °C.
9.1 Electronic thermostat
9.1.1 Setting the set point
The cooling unit is fitted with a TX050 electronic
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