Carrier Air-cooled chillers

Cooling capacity 607-774 kW

The Aquasnap liquid chiller range 604-804 features the latest technological innovations: 

– ozone-friendly refrigerant R-410A 

– scroll compressors 

– low-noise fans made of a composite material 

– auto-adaptive microprocessor control 

– aluminium micro-channel heat exchangers (MCHE). 

The AquaSnap (30RB604-804) version features a compact all-in-one package optimised for part-load applications where high SEER, SEPR, IPLV are required. The AquaSnap (30RB604-804), equipped with a variable speed fans and 0-10V signal for customer variable speed pump management, provides premium part-load efficiency to reduce maintenance costs over the lifespan of the chiller. 

Additionally, the low sound levels achieved under part-load conditions can be very beneficial for sensitive acoustic applications. Besides operating efficiently and quietly, the AquaSnap operates from -20°C up to 48°C as standard.

Quiet operation 

• Compressors 

– Low-noise scroll compressors with low vibration level 

– The compressor assembly is installed on an independent chassis and supported by flexible anti-vibration mountings 

– Dynamic suction and discharge piping support, minimising vibration transmission 

• Condenser with Greenspeed® variable-speed fans section 

– Condenser coils in V-shape with an open angle, allowing quieter air flow across the coil 

– Low-noise 4th generation Flying Bird fans, made of a composite material (Carrier patent) are now even quieter and do not generate intrusive low-frequency noise 

– Rigid fan installation for reduced noise (Carrier patent)

Environmental care

• Ozone-friendly R-410A refrigerant 

– Chlorine-free refrigerant of the HFC group with zero ozone depletion potential – Very efficient – gives an increased energy efficiency ratio in part load operation (IPLV, SEER, SEPR) 

– 40% reduction in the refrigerant charge through use of the micro-channel heat exchangers (MCHE) 

• Leak-tight refrigerant circuit 

– Brazed refrigerant connections for increased leak tightness 

– Reduction of leaks as no capillary tubes and flare connections are used 

– Verification of pressure transducers and temperature sensors without transferring refrigerant charge

Superior reliability

• State-of-the-art concept 

– Cooperation with specialist laboratories and use of limit simulation tools (finite element calculations) for the design of the critical components, e.g. motor supports, suction/ discharge piping 

– Compressor control box installed on the cold side of the compressor (Carrier patent) 

– All-aluminium micro-channel heat exchanger (MCHE) offers 3.5 times higher corrosion resistance than a conventional coil. The all-aluminium construction eliminates the formation of galvanic currents between aluminium and copper that are responsible for the coil corrosion in saline or corrosive atmospheres.

• Auto-adaptive control

– Control algorithm prevents excessive compressor cycling and permits reduction of the water quantity in the hydraulic circuit (Carrier patent). 

– Automatic compressor unloading in case of abnormally high condensing pressure. If an anomaly occurs (e.g. fouled condenser coil, fan failure) Aquasnap continues to operate, but at reduced capacity.

Cooling capacity 267 – 1.682 kW

The AquaForce™ 30XB and 30XBP liquid chillers are the economic solution for commercial and industrial applications where high reliability and economic operation in all climate conditions are key customer requirements. 

The AquaForce™ 30XB and 30XBP liquid chillers are designed to meet current and future regulations for energy efficiency and operating sound levels. They use the latest Carrier technologies: 

– Carrier 06T twin-rotor fixed-speed screw compressors. 

– Low noise 6th generation of Carrier Flying Bird™ fans with AC motor (30XB) or EC motor (30XBP).

– Carrier flooded shell-and-tube evaporator with new copper tube design for low pressure drops 

– 2nd generation of “V” shape Carrier Novation™ microchannel heat exchangers with optional Enviro-Shield coatings. 

– Carrier Touch Pilot® control with color touch screen user interface that includes 10 languages and integrated web-server.

The range is available in 3 efficiency levels. 

• 30XB standard unit

The AquaForce™ 30XB is equipped with fixed-speed screw compressors and fixed-speed fans with AC motors. The 30XB offers an economical solution whilst providing high full load efficiency for process applications and operation in high ambients. 

• 30XB with variable-speed AC fan motors

The 30XB with variable-speed AC fan motors offers an economical solution to enhance seasonal energy efficiency levels for comfort applications. 

• 30XBP premium unit 

The 30XBP premium unit is equipped with EC fans and additional heat exchange surface to improve both the full load and part load energy efficiency. The 30XBP provides very cost effective operation in both process and comfort applications through the use of state of the art EC fan technology.

Environmental responsibility

• R-134a refrigerant

– Range designed for use with R-134a refrigerant with the

possibility to upgrade to ultra-low global warming potential

R-1234ze refrigerant on site in the future.

– 40% reduction in the refrigerant charge through the use of

micro-channel heat exchangers

• Leak-tight refrigerant circuit

– Reduction of leaks as no capillary tubes and flare connections are used

– Verification of pressure transducers and temperature sensors without transferring refrigerant charge

Exceptional reliability

• Screw compressors 

– Industrial-type screw compressors with oversized bearings and motor cooled by suction gas. 

– All compressor components are easily accessible on site minimising down-time. 

– Dedicated electronic compressor protection module. 

• Air condenser 

2nd generation of “V” shape Carrier NovationTM aluminium microchannel heat exchangers (MCHE) with high corrosion resistance. The all aluminium design eliminates the formation of galvanic currents between aluminium and copper that cause coil corrosion in saline or corrosive environments. 

• Evaporator 

Thermal insulation with aluminium sheet finish (option) for improved resistance to mechanical and UV damage. 

• Auto-adaptive control 

– Control algorithm prevents excessive compressor cycling (Carrier patent) 

– Automatic compressor unloading in case of abnormally high condensing pressure. If condenser coil fouling or fan failure occurs, the Aquaforce continues to operate, but at reduced capacity

Cooling capacity 493-1.079 kW

The AquaForce® Vision 30KAV liquid chillers with Greenspeed® Intelligence are the premium solution for commercial and industrial applications where installers, consultants and building owners require superior reliability and optimal performances, especially at part load. 

The 30KAV units are designed to exceed European Ecodesign directive requirements in terms of energy efficiency,  versatility and operating sound levels. This result is achieved through the optimised combination of proven best-in-class technologies that include: 

• 2nd generation of high-efficiency variable-speed twin screw compressor with built in volume index control (Vi) valve for optimal full and part load performance and Integrated Resonator Array (IRA) for low sound operation 
• 6th generation of Carrier Flying Bird™ fans with AC or EC motor depending on options. 
• Carrier flooded shell-and-tube evaporator with new copper tubes for low pressure drops 
• 3rd generation of “W” profile Carrier Novation™ microchannel heat exchangers with optional Enviro-Shield coatings. 
• Carrier Touch Pilot® control with color touch screen user interface that includes 10 languages and new smart energy monitoring function.

The range is available in 4 efficiency levels.

• 30KAV standard unit

The AquaForce® is equipped with variable-speed screw compressor and variable-speed fans with AC motors.

The 30KAV is optimised to meet the most demanding technical and economic requirements while offering high seasonal energy efficiency levels.

• 30KAV with EC fans

The 30KAV with EC fans option enhances the seasonal energy efficiency and offers state of the art EC fan technology as standard.

• 30KAV with High Energy Efficiency 

The 30 KAV with High Energy Efficiency option is equipped with variable- speed fans with AC motor and additional heat exchange surface to deliver optimum performance at both full load and part load.

• 30KAV with High Energy Efficiency +

The 30KAV with High Energy Efficiency + option is equipped with EC fans and additional heat exchange surface to provide the highest possible seasonal energy efficiency. 

Environmental care 

• The AquaForce® Version 30KAV liquid chillers with Greenspeed® Intelligence is a boost for green cities and contributes to a sustainable future. Combining a reduced charge of R134a refrigerant and exceptional energy efficiency it significantly lowers energy consumption while reducing carbon dioxide emission by 25% throughout its life cycle
• The AquaForce® Version 30KAV liquid chillers are equipped with an automatic energy meter that provides estimated instantaneous and cumulative cooling energy output, instantaneous and cumulative electric energy consumption, instantaneous and average seasonal energy efficiency ratios for unit performance monitoring and verification. 
• The AquaForce® Version 30KAVZE versio with PUREtecTM refrigerant designed exclusively for HFO R-1234ZE 
• R-134a:HFC refrigerant with zero ozone depletion potential 
• 40% less refrigerant charge: The micro-channel technology used for condenser coils optimises heat transfer while minimising the refrigerant volume.
• Leak tight refrigerant circuits: 

• Reduction of leaks as no capillary tubes and flare connections are used 
• Verification of pressure transducers and temperature sensors without transferring refrigerant charge 
• Discharge line shut-off valve and liquid line service valve for simplified maintenance.

• Refrigerant leak alert: The AquaForce® Version 30KAV liquid chiller is equipped with an automatic refrigerant leak detection algorithm that can detect serious refrigerant loss at any point on the system. The automatic refrigerant leak detection system can help to achieve recognition within pollution prevention assessment programs, ideal for assisting in the design of sustainable buildings.  
• Refrigerant leak detection: Available as an option, this additional dry-contact allows reporting of possible leaks. The leak detector should be mounted in the most likely leak location.

Built-in reliability and easy servicing

The 30KAV units offer enhanced performance as well as Carrier’s acclaimed product quality and reliability. Major components were chosen, selected and tested to minimise the possibility of failure.

• 2nd generation of variable-speed twin-screw compressors: 

• The screw compressors are industrial-type with oversized bearings and motor cooled by suction gas, with a proven failure rate lower than 0.1%.
• Air-cooled compressor variable speed drive (VSD) to ensure reliable operation and easy maintenance. 
•  All components related to the compressor assembly are easy accessible on site minimising down-time.

• Variable-speed fans: 

• 30KAV is fitted with variable-speed asynchronous fan- motor as standard. One variable- speed drive is sized to manage a group of fans per refrigerant circuit reducing first cost while ensuring high part-load efficiency.
• 30KAV with High Energy Efficiency+ option is fitted with variable-speed EC fan- motors. Each EC fan is controlled independently ensuring continuous chiller operation in case of motor or drive failure. 

• Air-cooled condenser: 

• Novation™ aluminum micro-channel heat exchanger with high corrosion resistance. The all aluminium design eliminates the formation of galvanic currents between aluminum and copper that cause coil corrosion in saline or corrosive environments.
• Enviro-shield ™ coating for MCHE used in standard and mildly corrosive environments with superior durability confirmed through 5000 hours testing in constant neutral salt spray per ASTM B117 and superior heat transfer performances confirmed through 2000 hours testing per CM1 (Carrier proprietary testing). 
• Superior Enviro-shield ™ coating for MCHE used in highly corrosive environments with superior durability confirmed through 5000 hours testing in constant neutral salt spray per ASTM B117 and superior heat transfer performances confirmed through 2000 hours testing per CM1 (Carrier proprietary testing). 

• Evaporator 

• Carrier designed flooded evaporator with mechanically cleanable water tubes 
• Electronic paddle-free flow switch to ensure prompt alarm in case of poor liquid flow rate 
• Thermal insulation with aluminium sheet finish improved resistance to mechanical and UV damage.

• Refrigerant circuits: 

• Two independent refrigerant circuits to secure partial cooling, if one of the two develops a fault.

• Auto-adaptive control: 

• Control algorithm prevents excessive compressor cycling
• Automatic compressor unloading in case of abnormally high condensing pressure. If condenser coil fouling or fan failure occurs, the Aquaforce continues to operate, but at reduced capacity.

In addition, to maintain unit performance throughout its operating life, whilst minimising maintenance costs, end users can access the ‘’Carrier Connect” remote monitoring service.

Cooling capacity 83-3956 kW

• Designed to provide chilled water from waste heat sources, generated from industrial processes and cogeneration systems.
• Allows diversification of critical cooling requirements.
• Critical cooling loads are met with minimal electrical power input taking advantage of hot water sources available on site.
• Allows use of smaller emergency generators since the electrical load associated with an absorption chiller is minimal, compared to an electrically driven chiller.
• Cooling requirements are met without the use of refrigerants.
• Minimizes global warming effect by greatly reducing power consumption and eliminating the generation of greenhouse gases.
• Reduced noise and vibration levels.
• The absorption chiller does not use a large motor-compressor, leading to quiet, trouble-free operation.
• Small footprint.
• The high efficiency associated with these chillers results in a reduction of the required installation space.
• Auto-diagnosis system monitors operating conditions, predicts chiller information and maintains stable operation.
• Advanced high-precision control system.
• Absorption pump with inverter control (option) for energy-saving operation.
• High-performance purge system maintains unit performance and minimizes maintenance requirements.
• State-of-the-art protection devices guarantee enhanced operating safety.