AquaForce^® - Variable-speed water-cooled screw liquid chiller & water-sourced heat pump using HFO R-1234ze refrigerant
30XWHVZE

General description

• Inverter-driven screw compressors
• PUREtec™ R-1234ze refrigerant
• Touch Pilot 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 on the condenser side when operating as a heat pump (up to 60°C for models 1401 & 1501)

Low energy consumption

• Designed for high performance both at full load and at part load
• SCOP 47/55°C up to 5,4
• Inverter-driven twin-rotor screw compressors allow precise capacity matching of building load changes and significantly reduce unit power input, especially at part-load
• Flooded multi-pipe heat exchangers for increased heat exchange efficiency
• Electronic expansion device permits operation at a lower condensing pressure and improved utilisation of the evaporator heat exchange surface
• Optimized electrical performance

High reliability

• Increased global performance as well as Carrier’s acclaimed product quality and reliability
• Major components are selected and tested to minimize failures possibility, as well as many design choices have been taken in this perspective
• Inverter-driven screw compressors with oversized bearings and motor cooled by suction gas (liquid cooled motor on 1401 & 1601 models)
• The inverter is optimized for each compressor motor to ensure reliable operation and easy maintenance
• 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 to guarantee and maintain reliable bearing lubrication
• Specific compressor gaskets compatible with HFO-1234ze, tested and validated by Carrier
• New relief valves designed for operation with HFO-1234ze
• New control algorithms
• Specific documentation that contains all the installation, operation, maintenance and safety Instructions

Easy and fast installation

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

Minimized operating sound levels

• Low noise Greenspeed^® variable-speed fans
• The inverter technology used for the compressor motors minimizes noise levels at part load operation
• Silencers on the compressor discharge line
• Sound insulation on the components that are most subjected to radiated noise
• Option 257 further reduces the global unit sound level

Environmental care

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

Designed to support green building design

• A green building is a building that is environmentally sustainable and has been designed, constructed and is operated to minimize the total impact on the environment
• The air conditioning system can use between 30 and 40% of the annual building energy consumption
• A number of green building certification programs exist in the market and offer third-party assessment of green building measures for a wide variety of building types

Inverter-driven Thunderbolt screw compressor

• Advanced control algorithms combine inverter frequency output with motor input logic to minimize mechanical part stress, resulting in best compression performance and high chiller reliability
• Equipped with bearings with oversized rollers, oil pressure lubricated for reliable and durable operation, even at maximum load
• Screw compressors use positive displacement principle to compress gases at higher pressure. As a result, in case of exceptional high temperature condenser side, the compressor does not switch off, but continues operation at 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

• SEPR 12/7°C up to 10.7
• SEER 12/7°C up to 8.8
• SCOP 47/55°C up to 5,4

Touch Pilot Control

• An intuitive and user-friendly, colored, 7" Interface
• Direct access to the unit's technical drawings and the main service documents
• Screen-shots with coincisive and clear information in local languages
• Complete menu, customized for different users
• Safe operation and unit setting
• Simple and "smart" intelligence uses data collection from the constant monitoring of all machine parameters to optimize unit operation
• 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
• Water pump control
• Operation visualization
• Alarm visualisation

Remote management (EMM option)

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

• Light-brine solution, down to -3°C
• Lead/lag operation
• Condenser insulation
• Service valve set
• Lon, J-Bus or BacNet gateway
• Condensing temperature limitation
• Control for low condensing temperature systems
• Low noise level
• Thermal compressor insulation
• Fast capacity recovery