intarWatt chiller

intarWatt chiller

R290 Glycol process chillers

The MWW range counts with four modular sizes hosting a tandem or a single semihermetic compressor per module, air cooler with V coils, plate heat exchanger.

  • Description
  • Technical features
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  • Dimensions
  • Documentation

Description

Glycol process chillers for commercial and industrial refrigeration applications, which uses a reduced load of R290 as a primary refrigerant, all contained in the chiller, and water, glycol or brine as a secondary refrigerant for the transport of cooling.

The MWW range has four modular sizes, formed by one or two semihermetic compressor per module, axial condenser with V coils and plate heat exchanger.

  • Weatherproof construction made in galvanised steel sheet case and polyurethane coating.
  • Reduced load of R290 refrigerant.
  • Tandem or single R290 semihermetic compressors with capacity control and unloaded starting. Crankcase heaters with ATEX grade.
  • Oil separator and oil equalisation line between compressors.
  • V-shape micro-tube condensing coil with aluminium fins and 7 mm copper tubes.
  • Two variable speed EC fans per V module.
  • Plate heat exchanger with electronic expansion valve per module.
  • Internal plate heat exchanger for liquid subcooling and suction superheating.
  • Cooling circuit made in copper tube with soldened connections, dryer filter, ATEX pressure switches, ATEX pressure transducers and temperature probes.
  • IP55 separated electrical board with ventilation fan. Individual Siemens protection devices for each compressor and fan.
  • Dixell iPro controller, with variable cooling capacity control (only with digital compressor), condensing pressure control with floating setpoint.
  • R290 leak detector, alarm light and buzzer, and emergency ventilation of compressor compartment with ATEX extraction fan.
  • Indoor version with EC plug fans for ducted air outlet, and ATEX grade centrigufal fan for emergency ventilation.
  • Variable speed pump for variable glycol flow control.
  • Very-low ambient temperature version down to -20 ºC, with electrical board heater and condensing pressure control valves.
  • Emergency backup control with pressure switches.
  • Anti-corrossion polyurethane coating on the condenser coil.
  • Remote touch control pad.
  • Power-supply monitor.
  • Silent-blocks for the installation of the chiller.
  • Heat recovery heat exchanger (20 % or 80 % of condenser heat) for generation of hot water.

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