Liebert Hiflex - Electrical Characteristics

Hiflex
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5.2 - Water condensers.
The water-condensed units are provided with a water/refrigerant
exchanger with braze-welded plates made of stainless steel;
this advanced exchanger type gives the highest efficiency in heat
exchange. In addition, a certain oversizing of the exchanger has
been provided so as to reduce pressure drops (and energy con
sumption of the water pump) as much as possible and thus to
allow the unit to operate with the external chiller in closed circuit,
even at high outdoor temperatures.
The O/UW units are designed for operating with mains water,
tower water or water in closed circuit with an external chiller. When
operating in a closed circuit, the water is cooled by the outdoor air
in a heat exchanger; in this case, to avoid unwanted ice formation
during winter, it is advisable to use a water/glycol mixture. The cir
culation of the water-glycol mixture is forced (the pump is not
supplied). If mains water or tower water is used, when installing
the unit fit a mechanical filter on the water line to protect the con
denser against possible impurities contained in the water (for condenser cleaning see the installation man
ual).
5.3 - Dry coolers
Our dry-coolers are built with a copper/aluminium cooling coil and axial fan(s).
The main data on dry coolers is shown in the following table:
Performances Electric data Overall dimensions
Standard
Model
Duty (a) Air flow
SPL
10 m
Supply
Number of
fans
Total
absorbed
power
Width Depth
Height
(b)
kW m
3
/h db(A) V/ph/Hz nº kW mm mm mm
DSM009 9 6.600 50 230/1/50 1 0.64 1.250 900 990
DSM013 13.5 5.100 50 230/1/50 1 0.64 1.250 900 990
DSM018 17.6 13.200 53 230/1/50 2 1.28 2.050 900 990
DSM022 22.4 12.600 53 230/1/50 2 1.28 2.050 900 990
DSM028 27.5 18.900 54 230/1/50 3 1.92 2.850 1.260 990
DST030 33 20.500 55 400/3/50 2 1.44 2.750 1.260 1.140
DST040 39 20.000 55 400/3/50 2 1.44 2.730 1.260 1.140
DST050 50 30.750 57 400/3/50 3 2.16 3.900 1.260 1.140
DST060 58 30.000 57 400/3/50 3 2.16 3.900 1.260 1.140
DST070 68 28.350 57 400/3/50 3 2.16 3.900 1.260 1.140
DST080 80 40.000 58 400/3/50 4 2.88 5.060 1.260 1.140
DST110 108 52.500 59 400/3/50 3 4.35 5.010 1.640 1.500
DST135 134 70.000 60 400/3/50 4 5.8 6.520 1.640 1.500
DST175 175 110.000 64 400/3/50 4 12.8 6.520 1.640 1.570
DST220 220 106.000 64 400/3/50 4 12.8 6.520 1.640 1.570
DST270 270 132.500 65 400/3/50 5 16 8.055 1.640 1.570
DST290 284 204.000 67 400/3/50 8 25.6 6.155 2.420 1.570
DST330 326 208.000 63 400/3/50 8 17.6 7.355 2.440 1.770
DST360 362 255.000 68 400/3/50 10 32 7.555 2.420 1.770
DST400 400 190.000 63 400/3/50 8 17.6 7.355 2.440 1.770
DST450 447 235.000 68 400/3/50 10 2 7.555 2.420 1.570
DST500 500 237.500 64 400/3/50 10 32 9.055 2.440 1.770