RTXB Heat Pump

476-1105 kW

Main features

  • Screw compressors
  • High efficiency statically and dynamically balanced ECOPROFILE axial fans
  • Shell and tube type heat exchangers on water side
  • High efficiency finned coils (with seamless copper tubes expanded into corrugated aluminium) heat exchangers on air side
  • Electronic expansion valves
  • Galvanized and painted steel casing and panels
  • Low Noise version with insulated compressors housing and two speed fan motors. Super Low Noise version with insulated compressors housing, oversized coils and variable fan speed regulation

Customer benefits

  • Eco-friendly, safe and efficient refrigerant R134a
  • Compact dimensions allow for flexible installations in both new and existing buildings
  • Simplified maintenance operations thanks to easy access to components


  • Screw compressors with stepless capacity control
  • Soft start
  • On/off condensing control
  • Condensing control with variable fan speed modulation
  • Power factor correction to cos phi 0.91
  • Automatic circuit breakers for compressors and/or fans
  • Numbered wires
  • Star-Delta starter
  • Control panel electric heater with thermostat
  • Phase failure protection relay
  • Anti-intrusion and/or condensing coil protection grilles
  • Gas gauges
  • Pre-painted, epoxy coated, copper/copper or tinned copper/copper condensing coils


  • Flow switch
  • Automatic water filling
  • Water Victaulic™ kit
  • Water strainer
  • Water gauges
  • Rubber and/or spring anti-vibration mounts


  • Standard 8 button LCD display
  • 32 bit microprocessor with a 4MB storage memory, real time clock for alarms storage, multi-language control software
  • Communication card RS485
  • Optional
    • Remote control display
    • LonTalk®, BACnet® communication capabilities