AquaForce^® - Water-cooled screw chiller & water-sourced screw heat pump using HFO R-1234ze refrigerant or R-515B
30XWHPZE

General description

• Twin-rotor screw compressors with a variable capacity valve
• PUREtec™ R-1234ze refrigerant
• R-515B future-proof A1 refrigerant
• SmartVu™ control system
• Flooded heat exchangers that are mechanically cleanable
• Can provide an evaporator leaving temperature down to 3.3°C
• Can deliver up to 55°C (70°C optional) on the condenser side when operating as a heat pump

Low energy consumption

• Compliant with EU Eco-design Minimum Efficiency Performance Standards (MEPS) in heating that apply from September 2015
• COP of up to 6.7 and SCOP up to 6.5
• Twin-rotor screw compressor equipped with a high-efficiency motor and a variable capacity valve that permits exact matching of the cooling capacity to the load
• Flooded multi-pipe heat exchangers for increased heat exchange efficiency
• Electronic expansion device permitting operation at a lower condensing pressure and improved utilisation of the evaporator heat exchange surface
• Economizer system with electronic expansion device for increased cooling capacity

Low operating sound levels

• Silencers on the compressors discharge line
• Silencers on the economizer return line
• Acoustic insulation on the components that are most subjected to radiated noise
• Option 257 further reduces the global unit sound level

Easy and fast installation

• Compact design
• Simplified electrical connections
• Simplified hydraulic connections
• Fast commissioning

Environmental care

• R-1234ze HFO long-term refrigerant solution with nearly zero global warming potential (GWP < 1) and zero ozone depletion potential (ODP = 0)
• R-515B future-proof A1 refrigerant
• Leak-tight refrigerant circuit

High reliability and easy servicing

• Increased global performance as well as Carrier’s acclaimed product quality and reliability
• Major components are selected and tested with R-1234ze and R-515B refrigerant to minimize failures possibility, as well as many design choices have been taken in this perspective
• Industrial-type screw compressors with oversized bearings and motor cooled by suction gas
• All compressor components are easily accessible on site minimizing down-time
• Two independent refrigerant circuits (from 1000 kW upwards); the second one automatically takes over, if the first one develops a fault, maintaining partial cooling under all circumstances
• Auto-adaptive control
• Exceptional endurance tests

Safe Design

• Specific polyol ester oil qualified by Carrier for using with HFO-1234ze or R-515B to guarantee and maintain reliable bearing lubrication
• Specific compressor gaskets compatible with HFO-1234ze or R-515B, tested and validated by Carrier
• New relief valves designed for operation with HFO-1234ze or R-515B
• Specific electrical box with increased tightness and integrated blower that maintains positive air pressure to avoid any risk of ignition
• New control algorithms
• Specific documentation that contains all the installation, operation, maintenance and safety instructions

06T twin-rotor screw compressor

• Equipped with bearings with oversized rollers, oil pressure lubricated for reliable and durable operation, even at maximum load
• Optimal adjustment of the compressor cooling capacity
• If a fault occurs, the compressor does not switch off, but continues operation with a reduced capacity (unloaded mode)
• The silencer in the discharge line considerably reduces discharge gas pulsations for much quieter operation
• Condenser includes an oil separator that minimizes the amount of oil in circulation in the refrigerant circuit and redirects it to the compressor function

• SEER 12/7°C up to 7.3
• SEPR 12/7°C up to 9.3

SmartVu™ control

• Intuitive and user-friendly, coloured, 4.3" interface
• 10 languages available
• Easy access to the controller box
• Password protection
• Night-modex
• Energy management

Remote Management (Standard)

• Easily accessed from the internet
• Multiple remote control, monitoring and diagnostic possibilities
• Optional communication gateways
• Condenser pumps control
• Start/Stop of the machine
• Dual set-point management
• Demand limit setting
• Operation visualization
• Alarm visualization

Remote management (EMM option)

• Extended remote control possibilities: room temperature, set-point reset, etc.

• Light-brine solution, down to -3°C
• Lead/lag operation
• Single power connection point
• Evaporator pump power / control circuit
• Evaporator dual pumps power / control circuit
• Condenser pump power / control circuit
• Condenser insulation
• Service valve set
• Lon, J-Bus or BacNet gateway
• High condensing temperature
• Condensing temperature limitation
• Control for low condensing temperature systems
• Touch Pilot control, 7” user interface
• Low noise level