WRA ERP Air Cooled Industrial Chiller

WRA ERP Air Cooled Industrial Chiller

WRA ERP Liquid Chillers

The new WRA ERP liquid chillers are the result of a design that has focused on reliability, energy efficiency, extended operating limits and extreme configurability. Thanks to dedicated technological solutions such as the oversized heat exchangers, the standard electronic expansion valve and the new high efficiency fans, each configuration of the WRA ERP chillers is characterized by high thermodynamic performances that exceed the most stringent minimum energy efficiency requirements imposed by the Ecodesign directive starting from 2021.

Key Features
  • Structure
    • Vertical structure
    • Zinc-plated steel base, polyester powder RAL9005 orange peel finished
    • Panels zinc-plated steel, polyester powder RAL7035 orange peel finished
    • Base with mounting hole for wheels kit
    • Arranged for lifting with lift truck
    • Compact structure with vertical development
    • Accessibility on three sides for easy maintenance
    • Low noise, high efficiency axial fan with integrated diffuser
  • Electrical Circuit
    • Electrical panel: designed in compliance with EN 60204 with degree of protection IP54: suitable for outdoor installation
    • Phase monitor Standard
    • Dry contacts: remote ON/OFF; general alarm
    • Electrical panel for indoor installations mod. 35…85
    • Electrical panel for outdoor installations mod. 95…D8
    • Control panel with general switch and alarms diagnosis
    • Electronic thermostat with temperature precision +/-2K
    • Power supply and signals on terminals
    • Standard signals: general alarm, on-off remote control
    • Signals on request: electrical level, flow switch, antifreeze protection
  • Hydraulic Circuit
    • Standard equipment with pump and tank
    • Fluid: water and antifreeeze
    • Non ferrous circuit on request mod. 35…85
    • Non ferrous circuit std. mod. 95…D8
    • Peripheral pump mod. 35…85
    • Centrifugal pump mod. 95…D8
    • Fixed by-pass with manometer mod. 35…A6
    • Adjustable by-pass with manometer mod. A8…D8
    • Electrical level indicator on request mod. 35…85
    • Electrical level indicator std. mod. 95…D8
    • Non-ferrous atmospheric hydraulic circuit standard
    • New HDPE dust-tight inertial tank with visual level indicator, loading/draining and overflow connections, level switch.
    • Automatic hydraulic bypass valve standard
    • Pressure gauge 0-6 barg
  • Refrigerant Circuit
    • Hermetic scroll compressors protected by a phase sequence control relay.
    • Refrigerant Fluid: R134a (mod.13-18) R410A (mod.20-5A)
    • New high efficiency AISI 316 stainless steel brazed plate evaporators.
    • New finned coil condensers with mini-tube technology: refrigerant charge content reduced by about 20%.
    • HP high pressure switch with manual reset.
    • Thermostatic lamination valve (mod.13-18)
    • Electronic Expansion Valve (mod.20-5A)
    • High and low pressure safety valves on refrigerant side
    • Differential pressure switch Standard
    • Single circuit air condensed
    • Hermetic reciprocating compressor mod. 35
    • Hermetic scroll compressor mod. 45…D8
    • Ecological refrigerant gas R134A mod. 35…45
    • Ecological refrigerant gas R407C mod. 58…D8
    • Condenser with aluminium fins
    • Evaporator mod. 35…A3 : immersed coil
    • Evaporator mod. A6…D8 : stainless steel plate
    • Expansion capillary pipe mod. 35…70
    • Thermostatic Expansion valve mod. 85…D8