RC IT REFROIDISSEMENT GROUPE FROID CONDENSATION A EAU NR-W-Z 0122 - 1204

Image RC IT REFROIDISSEMENT GROUPE FROID CONDENSATION A EAU NR-W-Z 0122 – 1204

NR-W-Z 0122 - 1204
Water cooled chiller
38,1 - 398 kW

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  • format_align_leftDescription
    Water to water indoor unit for the production of chilled water with hermetic rotary Scroll compressors, braze-welded plate-type exchanger and electronic expansion valve. Basement and frame in hot-galvanised shaped sheet steel with a suitable thickness. All parts polyester-powder painted to assure total weather resistance, RAL 7035. The range includes the single-circuit two-compressor versions and the dual circuit four-compressor versions.

    Versions

    • - - Basic

    Configurations

    • - - Basic function

    Features

    • HIGH EFFICIENCY
      Very high efficiency at full and partial load, at the highest market levels, thanks to the adopted technological solutions. These units ensure low operating costs and therefore a quick payback time.
    • ErP READY
      The highest level of efficiency at part load can meet and exceed the minimum seasonal energy performance ration, SEPR, in accordance with the eco-sustainable design requirements for all products using energy.
    • VARIBLE PRIMARY FLOW (OPTION)
      Energy saving due to variable pump speed management based on load demand and the variable flow assures the functioning of the units also with critical working conditions. VPF (Variable Primary Flow) available for sizes 0604-1204.
    • EXTREMELY SILENT OPERATION
      Extremely silent operation together with high efficiency, tank to dedicated acoustic devices and a precise design for the choice of the components.
    • INTEGRATED HYDRONIC MODULE
      The built-in hydronic module already contains the main water circuit components; it is available as option with single or twin in-line pump, for achieving low head, fixed or variable speed, available for user side and source side (up to 4 pumps).
    • INTEGRATED CONDENSATION´S CONTROL
      The electronics of the units manages the most suitable condensing control for each type of application: pressure-controlled valve, two or three-way modulating valv, 0-10V signal for variable speed driven pumps.
    • TOTAL VERSATILITY
      NR-W-Z units have been designed with a range of integrated accessories in mind for operation with total water loss (well, water bed, etc.), dry cooler or cooling tower and suitable for geothermal application so as to satisfy all service system and installation requirements.
    • ELECTRONIC EXPANSION VALVE SUPPLIED STANDARD
      The use of the electronic expansion valve generates considerable benefits, and guarantees energy saving due to efficiency optimization in case of source temperature variability. The electronic thermostatic valve allows you to obtain speed in reaching machine stability and an extension of the operating limits.

    Accessories

    • Touch Screen visual display
    • Set-up for remote connectivity with ModBus/Echelon protocol cards
    • Outside air temperature probe for plant water set point compensation.
    • Integral acoustical enclosure (type base)
    • Thicker soundproofing cladding
    • User side and source side hydronic kit available in different configurations
    • VPF (Variable Primary Flow) system
    • Condensing control device: two or three-way modulating pressure-controlled valve and inverter on pumps
  • keyboard_hideContrôles

    Control

    • Electronic control W3000TE
      The brand new W3000TE controller offers advanced functions and algorithms. The keypad W3000 Compact, as standard equipment, features function controls and a complete LCD display for viewing data and activating the unit, via a multilevel menu, with settable display language. The regulation is based on the exclusive QuickMind algorithm, including self-adaptive control logics, beneficial in low water content systems. As alternatives the proportional- or proportional- integral regulations are also available. Diagnostics include complete alarm management, with “blackbox” functions (via PC) and alarm log (display or PC) for best analysis of unit be haviour. For systems made up of multiple units, differentiated device management means just a certain portion of the capacity installed can be dedicated to domestic water production, in this way ensuring more efficient energy distribution and, at the same time, guaranteeing simultaneous water delivery to the different distribution systems. Supervision is available with different options, using proprietary devices or by integration into third party systems using ModBus, BACnet, BACnet-over-IP and Echelon LonWorks protocols. A dedicated wall-mounted keypad can be used for remote control of all the functions. Optionally (VPF package), capacity modulation can be integrated with hydraulic flow modulation, thanks to inverter-driven pumps and to specific resources for the hydraulic circuit.
  • find_in_pageFiches Techniques
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    Application undefined

    NR-W-Z

    0122

    0152

    0182

    0202

    0252

    0262

    0302

    0352

    0402

    0452

    0502

    0552

    0602

    0702

    0604

    0704

    0804

    0904

    1004

    1104

    1204

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      IT COOLING PRODUCT GUIDE
      March 2020

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      IT COOLING PRODUCT OVERVIEW
      January 2020

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    • picture_as_pdf BROCHURES

      RC FOR IT COOLING
      June 2019

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    • picture_as_pdf PRODUCT OVERVIEW

      IT COOLING OVERVIEW
      March 2020

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    • picture_as_pdf SELECTION SOFTWARE

      ELCA WORLD
      April 2020

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    • picture_as_pdf SELECTION SOFTWARE

      AHU SELECTION SOFWARE
      June 2019

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