Knurr CoolTrans | Knurr Rack Cooling System

 
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Knürr CoolTrans

The link between water circulation systems in the building and the server rack.

The reliable link between water circulation systems in the building and the server rack.
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Brochures and Data Sheets
Overview

Water Cooling System

Knurr CoolTrans units combine a building's main cold water circulation system with a data center's secondary cold water system by means of a water-to-water heat exchanger, allowing facilities to overcome complex circulation systems, and ensuring that data centers have no condensation build up. The units are compact and energy-efficient.

Knürr CoolTrans® is indespensible for the safe operation of water-cooled racks.

Features
  • Hydraulic separation of the cold water circulation system in the building from the cooling water in the data center
  • Use of the best quality components from building technology
  • Integration of all thermohydraulic components for regulated liquid cooling (pumps, valves,mixers, heat exchanger, expansion tank)
  • Redundant components permit uninterrupted operation, even during servicing
  • Connection of individual Knürr CoolTherm®and Knürr CoolAdd®units to the Knürr CoolTrans units
  • Modular design for heat loads in excess of 100 kW
Benefits
  • Constant cooling water temperature with adjustable set point temperature
  • Constant cooling water quantity regardless of the hydraulic arrangements in the building
  • Operational reliability through system separation (permits leakage monitoring and prevents corrosion and fouling effects thanks to a defined water quality on the secondary side)
  • Operational reliability through redundancy
  • Operational reliability through recording and centrally monitoring the operating parameters including warning and alarm signals
  • Possibility of controlling emergency operation
  • Flanged joint for adding multiple Knürr CoolTrans units
  • Dew point dependent cooling water flow temperature increase to prevent condensation water and for piping without insulation
Technical Data
Capacity Width Hight Depth Pipe Connection Differential
Pressure: ext.
Elec. Connection
Power
Water Volume
Flow
        primary secondary primary secondary 50 Hz primary secondary
50 kW 450 mm 1010 mm 820 mm 1" 5 x 1" 1,5 bar 0,7 bar 230 V; 0,8 kW 8,42m³/h 7,16m³/h
75 kW 450 mm 1010 mm 1200 mm 1" 5 x 1" 1,5 bar 1,1 bar 400 V; 1,8 kW 12,78m³/h 10,74m³/h
100 kW 1640 mm 1890 mm 600 mm 2xDN100 2xDN100 1,4 bar 1,2 bar 400 V; 1,6 kW 16,79m³/h 14,30m³/h

 

  Primary Circuit Secondary Circuit   Conditions of Setup Site:
  Also Available:
Temperature Supply: 4“ 8°C 12“ 14°C Capacity 50 respectively 75 kW
(air conditioned room)
capacity 100 kW (any)
Pumps - 60 Hz
2 heat exchangers for free cooling
Redundant electric feed
Temperature Return: 11“ 14°C 18“ 20°C
Operating Pressure: 16 bar 6 bar
Antifreeze Agent: up to 35%   Note: Further temperatures and diff. pressure possible on request
Specification subjects to change without notice / errors and omissions excepted / Electrical data as operating power input