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.
The W3000TE controller offers advanced functions and algorithms.
For the TX-W family, dedicated control logics, named as a whole CX4, have been implemented to take all the advantages of the variable speed centrifugal compressor complete control to maximize the unit performance in all working conditions.
KIPlink - Keyboard In Your Pocket - is the innovative user interface based on WiFi technology that allows one to operate on the unit directly from the smartphone or tablet. Using KIPlink, it is possible to turn the unit on and off, adjust the set-point, plot the main operating variables, monitor in detail the status of the refrigerant circuits, the compressors and display and reset the possible alarms.
Secure access to data is guaranteed by three different password levels (user, service, manufacturer).
In the place of or in addition to KIPlink, the touchscreen interface with a 13” colour display is available. The screens have been developed with graphics created exclusively for the TX-W family. Specific screens allow a closer view of all the variables related to the compressors, the heat exchangers and the refrigerant circuit. It is also possible to analyse the monitored and measured variables in graphical form.
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). Connection with remote touchscreen is available.
The presence of programmable timer allows the creation of an operating profile containing up to 4 days and 10 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.