Liquid Cooling Package LCP Hybrid CW

Article number: SK 3311.900

Large-scale, high-capacity air/water heat exchanger, designed as the rear door of the server enclosure, ensures that heated waste air from the servers is cooled down to server intake air level.

Article number:
SK 3311.900
Benefits
Mounted on the rear of the server rack so that the thermal load of the server rack does not have to be dissipated by the ventilation system
The heat pipe ensures even heat distribution in the heat exchanger, so that the heat exchanger always has a balanced heat load
A door opening angle of 135° allows rear access to the server enclosure and makes assembly and configuration inside an enclosure easier
Optimum energy efficiency, as there is no electrical power consumption whatsoever
Applications
Air/water heat exchanger for retrofitting to TS IT racks while operational
Function principle
The stand-alone unit replaces the rear door
The waste air is cooled down to room temperature. The heat energy absorbed by the water is transported to the external cold water supply, where it is cooled back down to the required inlet temperature.
The heat exchanger uses the airflow from the IT equipment and does not require any additional fans for cooling
Minimal upstream and downstream pressure losses, despite the very compact design
Water connection from below only
Colour
RAL 7035
Design
Rack cooling
Note
The air throughput (heated waste air) from the active 482.6 mm (19") components installed in the enclosure must be sufficient to overcome the pressure loss from the perforated heat exchanger rear door
The total cooling output refers to an outlet temperature of 24 °C
Dimensions
Width: 800 mm
Height: 2,200 mm
Depth: 105 mm
Max. cooling output
20 kW
Usable height
47 U
Cooling medium
Water (see Internet for specifications)
Rated volumetric flow – air volume
4,000 m³/h
Water connections
DN 25 (G 1" external thread)
Permissible operating pressure (p. max.)
6 bar
Water inlet temperature
15 °C
Packs of
1 pc(s).
Weight/pack
84 kg
EAN
4028177717053
ETIM 7.0
EC002515
ECLASS 8.0
27180712
Product description
SK LCP Hybrid CW, WHD: 800x2200x105 mm, 20 kW
Approvals
UL + C-UL (listed)
Declarations
Declaration of conformity
Documentation
Instructions
LCP Hybrid CW (20kW)
Model No. 3311.900
WxHxD 800x2200x105 mm
The unit takes up the heat losses from IT components
installed in an IT rack and thus prevents dissipation
of this heat at the place of installation. The
temperature of the room air is maintained at the
server air inlet temperature. The integrated air/water
hybrid heat exchanger with heat pipe guarantees a
cooling output of up to 20 kW. Heat pipes ensure even
heat distribution over the exchanger in case of
inhomogeneous component installations in the rack; the
IT rack is to be fitted with the air baffle plates
which are available as accessories so as to form a
"funnel" towards the rear and in this way to guarantee
100% heat transfer via the heat pipe, even
distribution of the heat losses and thus full
exploitation of the heat exchanger surface. The unit
is mounted at the rear on 800 mm wide IT racks with
fixings on one side. The unit is pressure-tested and
ready to install and can be directly mounted on
the IT rack without any further assembly work.
With its external frame construction,
the heat exchanger does not occupy space
in the rack - the full server rack is thus available
for the IT equipment. Thanks to the high-performance
heat exchanger and its special corrugated membrane
structure with hydrophilic coating, the exhaust air
flow from the servers is not impaired. The unit can be
swung away from the rack in the same way as a
ventilated rear door. The opening angle of the unit is
130°, also in combinations with several units in a
suite. The IT components installed in the IT rack use
their own fans to route the warm air flow to the
air/water hybrid heat exchanger. The heat from the
warm exhaust air flow from the IT components is
dissipated by way of the air/water hybrid heat
exchanger. No additional fans are required on the unit
for the cooling of the IT components. The air/water
hybrid heat exchanger results in a minimal pressure
loss over the IT components. To further reduce the
pressure loss on the air side, additional air baffle
plates may be installed in the roof and floor areas in
the 800 mm wide IT rack (not included in the scope of
supply). The air baffle plates do not hinder the
accessibility for cabling and mounting of the IT
components. The cold water connection of the LCP
Hybrid is to be found in the side door frame. The
connection point for the feed and return lines (DN 25,
1" internal thread) is fixed on the unit and is not
turned when opening and closing. Optionally, the cold
water supply to the unit can be realised by way of an
external connection hose DN 25 / PN 16, length 1 m
(not included in the scope of supply).
Technical data, nominal cooling output:
Sensible cooling output: 20 kW (sensible cooling only)
Room temperature (server inlet): 24°C
Delta temp. air: 15 K
Air flow rate: up to 4000 m3/h [Delta p approx. 28 Pa]
(produced by the IT components)
Inlet temperature: 15°C
Medium: Water
Water flow rate: 57 l/min [Delta p 0.7 bar]
Pressure loss, water: 0.7 bar
Pressure loss, air: approx. 28 Pa
Refrigerant, heat pipe:,, R 134 A