QDX-with-SA

Managers

Jonas Johansen

Global Product Manager
Cooling

Torbjørn Ærenlund

Director,
Product Management

Direct Expansion Units, QDX

The individual Air Conditioning Direct Expansion Unit is designed for a cooling capacity ranging from 50-260kW.
Description

The individual Air Conditioning Direct Expansion Unit is designed for a cooling capacity ranging from 50-260kW. All system components are dimensioned and calculated for optimal performance at the required design parameters. The performance of the cooling plants depend on how the actual system parameters compare to the system design parameters. The specially developed Novenco control system allows for optimal adjustment of the cooling capacity.

  • Modular standardized condensing unit, piston & compact or compact screw compressor
  • Designed optimized for air conditioning, compact & robust
  • Highly accurate capacity and temperature control system suited for AC as well as MGO/MDO cooling
  • High quality components for maximum reliability, endurance and minimum maintenance
  • Marine proof compressors, semi-hermetic or open type direct driven piston and semi-hermetic compact screw
  • Designed for operation with approved HFC refrigerants
  • Ethernet connection enabling remote control to any PC on-board
  • Environmental friendly design, on request the design may comply with all environmental certifications (LRS, DNV-GL, ABS, BV, RINA, etc.)
  • Protective coating – category C2 HIGH is using a paint system complying with EN ISO 12944-5. Standard colour is RAL 5001, and can be changed to other standard RAL colours to meet customer requirements
  • Compressor capacity regulation down to 25-33%, ensuring smooth operation without short cycling in part load conditions
  • Easy maintenance despite the compact design
  • Condenser holding the refrigerant charging during operational pumpdown
  • Pre-assembled valve boards ensuring trouble-free installation on-board
  • Factory pressure and leak testing of all units prior to shipment
  • Combined suction accumulator and sub-cooler for long on-board piping distances
  • Fresh or sea water proof condensers
  • 3D documentation of all plants for easy integration
  • SIEMENS PLC control of all unit functions
  • Four types of system configurations are available: 1 or 2 QDXs with 1 or 2 AHUs
  • Touch screen interface for easy unit operation and status overview
  • R404A as standard, R134a and R407C as alternatives

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