4
English
Contents
1. Application
2. Technical data
3. Assembly
4. Electrical connection
5. Microcontroller adjustment
6. Technical information
7. Maintenance
8. Scope of supply and guarantee
9. Fault message and fault analysis
10. Spares list
1. Application
Enclosure cooling units are designed and built
to dissipate heat from enclosures by cooling the
air inside the enclosure and protecting tempera-
ture-sensitive components. Enclosure cooling
units are particularly suitable for a temperature
range of + 40 °C to + 50 °C.
2. Technical Data
(see table 2.1)
3. Mounting
The cooling unit can be mounted as standard
either to the outer surface or inside the enclosure,
as required.
Cutouts and fixing holes should be made on the
mounting surface in accordance with fig. 3.1.
Cut the enclosed seal to the required length and
attach to the unit in accordance with fig. 3.2.
Screw the set screws, item
➀
, into the blind nuts
and fix them by means of a bracket, item
➁
,
washers, item
➂
, and nuts, item
➃
, in accord-
ance with fig. 3.2. Attach the condensate drain
(see 6.3).
Prior to mounting, ensure that:
v
the site for the enclosure, and hence the
arrangement of the cooling unit, is selected
so as to ensure good ventilation;
v
the location is free from excessive dirt and
moisture;
v
the round cut-out for air extraction is located
in the upper area of the enclosure;
v
the mains connection ratings, as stated on
the rating plate, are available;
v
the ambient temperature is no higher than
specified on the rating plate;
v
the packaging shows no signs of damage;
v
the enclosure is sealed on all sides.
Condensation will occur if the enclosure is
leaky;
v
the separation of the units from one another
and from the wall should not be less than
200 mm;
v
air inlet and outlet are not obstructed on the
inside of the enclosure;
v
units are only fitted vertically in the specified
position. Max. deviation from true vertical: 2°;
v
condensate discharge must be made up by
means of the material provided in the dis-
patch bag. The discharge tube must be free
from kinks and must be arranged sloping
away from the unit;
v
electrical connection and repair are carried
out only by authorized specialist personnel.
Use only original replacement parts!
v
To avoid an increase in condensation, a door
operated switch (e. g. PS 4127) should be
used which will switch the cooling unit off
when the enclosure door is opened.
Tab. 2.1
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6.
6.
6.
6.
Operating voltage
230 V
50 /60 Hz
115 V
50/60 Hz
230 V
50 /60 Hz
115 V
50/60 Hz
Rated current
1.8 A/1.6 A
3.5 A/3.6 A
1.5 A/1.5 A
3.5 A/3.8 A
Starting current
2.7 A/2.8 A
4 A/4.5 A
1.9 A/2 A
4.2 A/4.5 A
Pre-fuse T
4 A/4 A
6 A/6 A
4 A/4 A
6 A/6 A
Duty cycle
100%
100%
Power consumption
L35 L 35
275 W/280 W
285 W/290 W
Useful cooling output
DIN 3168/EN 814
L35 L 35
350 W/360 W
320W/345 W
Refrigerant
R134 a, 125 g
R134 a, 150 g
Temperature range
+ 20 to + 50 °C
+ 20 to + 50 °C
Noise level
62 dB (A)
62 dB (A)
Protection category EN 60 529
Internal circuit
External circuit
IP 54
IP 34
IP 54
IP 34
Dimensions (W x H x D) mm
270 x 520 x 120
490 x 300 x 120
Weight
13 kg
15 kg
13 kg
15 kg
Colour
RAL 7032
RAL 7032
Fig. 3.1
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6.6.
(vertical wall-mounting)
External/internal mounting
External
Internal
mounting
mounting
Fig. 3.2
0RXQWLQJ
External mounting
Internal mounting
6.6.
(horizontal wall-mounting)
External/internal mounting
External
Internal
mounting
mounting
120
270
520
25
95
501
251
490
300
120
25
95
471
281
1
2
4
4
2
1
3
3
