High efficiency water cooled chiller
246 - 4191 kW
Indoor unit for the production of chilled water featuring centrifugal compressors oil-free, with R134a, electronic regulation valve, shell and tube condenser and shell and tube flooded evaporator. Base and supporting structure and panels are of galvanized epoxy powder coated steel with increased thickness. Flexible and reliable unit; it easily adapts itself to different thermal load conditions thanks to the precise thermoregulation together with the use of inverter technology. The compressor is radically innovative: magnetic bearings and digital rotor speed control allow partial load efficiency levels to be reached that were hither to impossible.
- NO COMPROMISE
Large availability in the combinations of the compressors (up to 6 compressors on the same unit), plus the flexibility in the choice of the heat exchangers can satisfy each specific installation and design requirements: the highest full load efficiency, the best initial investment, an unrivaled seasonal efficiency, an operating range suitable for applications in systems operating at high or low condensation (dry coolers or cooling towers)
- VERY HIGH EFFICIENCY
Very high efficiency at full and partial load, to top market levels, thanks to adopted technological solutions: large capacity modulation and expanded exchanger, offering minimum running costs of the unit in real working conditions.
- FLEXIBLE COMPOSITION
Choice between horizontal or diagonal arrangement of the heat exchangers, with dimensions that favor the compact overall dimensions in height or plant, water connections to the evaporator and condenser that can be deployed on the right or left, to fit for all applications
Adaptability at the building’s heating request thanks to the continuous capacity regulation, assured by sophisticated control’s logic.
- LOW INRUSH CURRENTS
Reduced breakaway starting currents thanks to the revolutionary centrifugal compressor.
- EXTREMELY SILENT OPERATION
Extremely silent operation in line with the best on the market, and highly reduced vibrations
- Integral acoustical enclosure (type base or plus)
- VPF (Variable Primary Flow) system
- Set-up for remote connectivity with ModBus/Echelon protocol cards
- Several devices for condensation´s control
- Fast restart
- filters kit for conformity to EN 61000-6-3 (residential ambients)
The brandnew CX4 controller offers advanced functions and algorithms.. When units are supplied with digital interface on the machine, it comes with a large touchscreen display 13 "colour. The screens are developed with graphics created exclusively for the family TX-W. The home page allows the immediate visualization of the status of the unit and its main operating parameters, while more specific screens allow a closer view of all the variables related to the compressors, the heat exchangers and the refrigerant circuit. It is possible the analysis in graphical form of the monitored and measured variables. Secure access to data is guaranteed by three different password levels (user, service, manufacturer). The controller allows easy assessment and operation on the unit by a multi-level menu, with selectable user’s language. The temperature control is characterized by the continuous capacity modulation, based on PID algorithms and related to the leaving water temperature, with adjustment on the neutral areas. The diagnostics includes a complete alarm management, with the "black box" (via PC) and registration of alarms (via display or PC) for a better analysis of the unit performance. Supervision is achievable through various options, with proprietary devices or with the integration in third party systems by means of the most common communication protocols (ModBus, BACnet-over-IP, Echelon LonWorks, BACnet MS / TP…, Konnex). Connection with remote touchscreen is available. The presence of programmable timer allows the creation of an operating profile containing up to 7 days and 6 type bands, with automatic transmission from summer time to winter time. For systems consisting of multiple units, the management of the resources is possible via optional proprietary devices. 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