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Cooling<br />

Cooling<br />

Recooling systems for IT cooling, cooling output 48000 to 150000 W<br />

Technical design:<br />

● Compact design with control<br />

components on the front and<br />

air intake via the right-hand<br />

side panel, air outlet via the<br />

left-hand side panel.<br />

● Pressure-sealed system.<br />

● Digital thermostat for temperature<br />

control with setpoint and<br />

actual value display.<br />

● Integral automatic bypass<br />

valve.<br />

● Flow monitor.<br />

● Roof plate of stainless steel<br />

1.4301 (AISI 304),<br />

spray-finished in RAL 7035.<br />

● Integration of applicationspecific<br />

special equipment<br />

on request.<br />

Supply includes:<br />

Recooling system wired and<br />

plumbed ready for connection,<br />

with multilingual documentation<br />

including functional diagram<br />

and wiring plans.<br />

Note:<br />

The illustration shows a unit with<br />

customer-specific options.<br />

134 Rittal IT catalogue/Cooling<br />

H<br />

B = Width<br />

T = Depth<br />

T<br />

Options:<br />

● Aluminium filter<br />

● Contamination monitoring for<br />

aluminium filter<br />

● Reinforced pump<br />

● Double pump unit<br />

● Heat recovery<br />

● Vibration components<br />

● Free cooling<br />

● Buffer store for separate siting<br />

● Control unit for redundancy<br />

operation<br />

● Emergency cooling with<br />

mains water infeed<br />

● Special voltages<br />

● Special spray-finish<br />

B<br />

Layout diagram,<br />

available on the Internet.<br />

Characteristic curves of pump,<br />

available on the Internet.<br />

Model No. SK 3300.912 3300.915 3300.920 3300.925 3300.930<br />

Rated operating voltage V, Hz 400, 3~, 50<br />

W 900<br />

900<br />

900<br />

1000<br />

Dimensions in mm<br />

H 2000<br />

2000<br />

2000<br />

2400<br />

D 2400<br />

2400<br />

2800<br />

3300<br />

Base/plinth height mm 100<br />

Cooling output at Tw = 15°C/Tu = 32°C 48000 W 60000 W 84000 W 120000 W 150000 W<br />

Power consumption 20500 W 24500 W 37000 W 50000 W 62000 W<br />

Max. current rating 38 A 41 A 63 A 81 A 103 A<br />

Refrigerant R407C<br />

Pmax. of cooling circuit 28 bar<br />

Temperature range<br />

Environment<br />

Liquid media<br />

–20°C to +43°C<br />

+10°C to +20°C<br />

Pump capacity See characteristic curve<br />

Number of cooling circuits 2<br />

Tank with 10 mm condensate insulation Steel<br />

Tank capacity 600 l 750 l<br />

Water connections 1 1 /2″ external thread 2″ external thread 2 1 /2″ external thread<br />

Weight 1350 kg 1400 kg 1950 kg 2500 kg 2700 kg<br />

Colour RAL 7035<br />

Protection category (electrics) IP 54<br />

Air throughput of fans 22000 m3 /h 40000 m3 /h 44000 m3 /h<br />

Temperature control<br />

Electronic control with digital display, setting range +10°C to +20°C<br />

(factory setting +15°C)<br />

Delivery times available on request. We reserve the right to make technical modifications.<br />

Accessories Page 141 Configuration software Page 151 Additives Page 147

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