RECS-W 0802 - 3202
Reversible unit, water source
Cooling capacity 174 - 801 kW
Indoor heat pump unit for the production of chilled/hot water with semi-hermetic screw compressors optimized for R134a, thermostatic expansion valve, shell and tube condenser and 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. The high performance’s level is achieved thanks to the accurate sizing of all internal components.
Version
B - Basic
Configurations
Basic function
D - Partial condensing heat recovery function
Features
- VERSATILITY AND EASY INSTALLATION
If compared to the solution of a water condensed unit reversible on the hydronic side, these units allows a reduction in the required technical space and, moreover, an appreciable simplification in the plant´s design. - INTEGRATED CONDENSATION´S CONTROL
A 2 way valve is supplied as standard for the condensing pressure control. For all the applications in which a constant waterflow through the condenser is needed, a 3-way valve option is also available under request. - ADAPTABILITY
Adaptability at the building’s cooling request thanks to the continuous capacity regulation, assured by sophisticated control’s logic. - SILENT OPERATION
Extremely silent operation thanks to the accurate unit’s design. Optional integral acoustic enclosure, reduces more the sound level beyond the best on market
Accessory
- Integral acoustical enclosure (type base or plus)
- Electronic expansion valve
- Remote keyboard
- Set-up for remote connectivity with ModBus, Echelon, Bacnet, Bacnet over-IP.
Controls
- W3000SE Large
The W3000 SE Large controller offers advanced functions and algorithms. The keypad is generously sized with full operating status display. The commands and detailed LCD display make access to the unit’s settings easy and safe. These resources allow to consult and intervene on the unit by means of a multi-level menu, with selectable language setting. The diagnostics includes a complete alarm management, with the "black-box" and alarm logging functions for enhanced analysis of the unit operation. For multiple units’ systems, the regulation of the resources, via optional proprietary devices, can be implemented. Energy metering, for both consumption and capacity, can also be developed. 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, Bacnet-over-IP, Echelon LonWorks. Compatibility with the remote keyboard managing up to 10 units. Availability of an internal real time clock for operation scheduling (4-day profiles with 10 hour belts). The regulation features the continuous modulation of capacity, based on a dynamic dead band and referring to the leaving water temperature. As alternative, step-wise regulation is also available, referred to the return water temperature with selectable proportional- or proportional-integral logic.
