NX2-W-G06 0042 - 0242

Water cooled chiller 45,8 - 242 kW

Water to water indoor unit for the production of chilled water with Scroll compressors with intermediate discharge valve (IDV), low-GWP and ozone-friendly refrigerant R454B, braze-welded plate-type exchanger and electronic expansion valve. Base 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 version.

EUROPE

CE

50 Hz

Topic overview

Product features
Technical data
Produkt-Informationen
Downloads

Product features

Features

HIGH EFFICIENCY

Very high efficiency at full and partial loads, at the highest market levels, thanks to the adopted technological solutions. These units ensure low operating costs and therefore a quick payback time.

LOW GWP REFRIGERANT

The new generation refrigerant R454B is the most eco-sustainable alternative to traditional refrigerant R410A, offering a 76% reduction in terms of GWP (Global Warming Potential GWP of R454B = 467, GWP of R410A = 1924 as per IPCC rev. 5th) and zero impact on the ozone layer.

SAFETY DESIGN

Family range with A2L refrigerant, completely designed to meet completely all the safety requirements for installation inside a machinery room. Including new risk assessment evaluation strategies in accordance with the latest Directives, new design of the components inside the compressor compartment, new separated electrical panel and inclusion, as a standard, of refrigerant leak management devices (leak detector and valves) for a prompt unit power off in case of leakage.

ErP READY

The highest level of efficiency at part loads can meet and exceed the minimum seasonal efficiency for heating, SCOP (only for reversible units) and for cooling, SEER, according with the eco-sustainable design requirements for all products using energy. The units already comply with the minimum seasonal energy efficiency requirements that will start from 2021.

VARIABLE PRIMARY FLOW

Energy savings due to variable pump speed management based on load demand and the variable flow ensures the units also function in critical working conditions.

EXTREMELY SILENT OPERATION

Extremely silent operation together with high efficiency, thanks to dedicated acoustic devices and a precise design for the choice of the components.

INTEGRATED CONDENSATION 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 valve, 0-10V signal for variable speed driven pumps.

TOTAL VERSATILITY

The units have been designed with a range of integrated accessories, keeping in mind the operation with open loop (well water or ground water), dry cooler, or cooling tower and they are suitable for geothermal application so as to satisfy all service systems and installation requirements.

ELECTRONIC EXPANSION VALVE SUPPLIED STANDARD

The use of the electronic expansion valve generates considerable benefits, especially in cases of variable demand and at different working conditions. It guarantees energy savings due to efficiency optimization in various different working conditions which translates into a reduction in operating consumption, a faster start-up of the unit and a wider extension of the operating limits.

Technical data

Produkt-Informationen

- - Standard efficiency

- - Basic function
D - Partial condensing heat recovery function

Touch Screen visual display
KIPlink user interface
Acoustical enclosure to reduce the noise emissions.
Soft starters
Multi Manager - LAN functions
Set-up for remote connectivity with Modbus, Bacnet MS/TP RS485, Bacnet over IP, Konnex, Modbus TCP/IP, SNMP.
Outside air temperature probe for plant water set point compensation.
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

Electronic control W3000+

W3000+ features an easy-to-use interface and a complete LCD display that allows one to consult and intervene by means of a multi-language menu (19 languages are available). The diagnostics includes a complete alarm management, with the “black-box” and the alarm history display for enhanced analysis of the unit operation. The programmable timer manages a weekly schedule organized into time bands to optimize unit performance by minimizing power consumption during periods of inactivity. Up to 10 daily time bands can be associated with different operating set points. As option, KIPlink is available - Keyboard In Your Pocket. KIPlink is the innovative user interface based on WiFi technology that allows one to operate on the unit directly from the smartphone or tablet. The regulation is based on the patented “Quickmind” water temperature regulation logic uses self-adapting control to maintain flow temperatures and optimize performance even in low water content scenarios. As an alternative, the proportional or proportional-integral regulations are also available. Optional proprietary devices can perform the adjustment of resources in systems made of several units. Consumption metering and performance measurement are possible as well. Supervision can be easily developed via proprietary devices or the integration in third party systems by means of the most common protocols as ModBus, Bacnet-over-IP, Bacnet MS/TP RS485, Konnex, ModBus TCP/IP, SNMP. Compatibility with the remote keyboard (up to 8 units).