WRA
Industrial Chiller 16-75 kW – R513A
Air-cooled industrial liquid chiller
Cooling Capacity
16 – 75 kW
Power Supply
400Vac – 3ph – 50Hz
460Vac – 3ph – 60Hz
Ambient temperature
from -4°F (LT version) to 113°F
Level of protection
Refrigerant
WRA ErP places reliability, energy efficiency, extended operating limits, and exceptional configurability at the core of its design.
Thanks to dedicated technological solutions such as oversized heat exchangers, an electronic expansion valve, and high-efficiency fans, every WRA ErP configuration delivers outstanding thermodynamic performance, exceeding the most stringent minimum energy efficiency requirements established by the Ecodesign Directive from 2021 onwards.
WRA ErP is designed to operate continuously under high thermal loads throughout the year, ensuring maximum performance under all operating conditions. All WRA liquid chillers comply with the requirements of the ErP2021 – SEPR HT (EU) 2016/2281 regulation, making them the ideal solution for all process cooling applications.
Refrigerant R513A: regulatory compliance and sustainable choice
The use of R513A refrigerant gas, efficiency and the use of less refrigerant gas reduce resource usage and CO2 impact.
Among HFO refrigerants, for its air conditioners cosmotec has chosen the refrigerant R513A due to some of its distinctive characteristics.
- It does not deplete the ozone layer and is available over the medium to long term not only for manufacturing purposes but also for maintenance activities.
- It also offers several other outstanding properties: a significantly lower GWP value compared to R134a (R134a: GWP = 1430, R513A: GWP = 631), high energy efficiency and improved environmental sustainability.
Reliable
Designed with precision and manufactured using high-quality materials, these systems deliver reliable, long-lasting performance, ensuring consistent operational efficiency to meet the most demanding requirements of your industry.
AC-EC fans
- AC Axial Fans STANDARD
with an IP54 protection rating and an external rotor. The blades are made of corrosion-resistant PP technopolymer and protected by a safety grille. The nozzle, directly integrated into the impeller, acts as a diffuser, increasing efficiency and reducing noise levels. - EC axial fans
(standard on LASER and LT versions) high-efficiency models, fitted with an electronically commutated brushless motor featuring integrated temperature control and continuous speed adjustment from 10% to 100%.
Refrigeration circuit
Equipped with hermetic scroll compressors optimized for operation with R513A refrigerant. When included, the electronic expansion valve (EEV) features sensors installed on the refrigeration circuit, enabling it to optimize system performance under all thermal load conditions and ensuring maximum efficiency at all times.
Condenser
Finned-coil heat exchanger with copper tubes and corrugated aluminum fins. The mini-tube design maximizes the surface area exposed to airflow, allowing for compact dimensions and a reduced refrigerant charge.
Electrical panel
Electrical panel manufactured according to EN60204-1 with a standard IP54 protection rating, allowing for external installation.
Structure
Robust structure designed and manufactured to guarantee total resistance to weathering and corrosion.
Centrifugal pumps
Horizontal multistage centrifugal pumps for high pressure, specifically designed for process cooling. Available head: P3 – 3barg; P4 – 4.5/5barg; P6 – 6/6.5 barg.
Adaptable
A wide range of versions and configurations makes the solution versatile for every process cooling application, ensuring efficiency, reliability, and operational adaptability.
Version Standard (Non-Ferrous)
Includes an AISI 316 brazed-plate evaporator, protected against freezing by both a differential pressure switch and an anti-freeze temperature sensor. The hydronic module is suitable for open-loop hydraulic circuits and includes, depending on the model, either an HDPE plastic tank or an AISI 304 stainless steel tank, equipped with a level sensor, an automatic adjustable hydraulic bypass valve, and piping made of non-ferrous materials such as stainless steel, polymers, and brass. This configuration helps preserve the process fluid from potential contamination.
Version Pressurised hydraulic circuits
In industrial processes, using a pressurized hydraulic circuit helps optimize efficiency and improve production accuracy, maintain fluid stability, prevent corrosion, and reduce both waste and maintenance costs.
The version designed for pressurized hydraulic circuits includes a cylindrical carbon steel tank (design pressure = 4 barg) with external thermal insulation. This unit is equipped with a plate evaporator, an automatic adjustable hydraulic bypass valve, a diaphragm expansion vessel (1 barg pre-charge), a pressure gauge (0–10 barg), a safety valve (set at 4 barg), and a differential pressure switch (installed on the heat exchanger).
Brine (23/-14°F)
Designed for low temperatures with glycol water, ideal for industrial and food & beverage applications.
Laser
Precise temperature control with advanced regulation and EC fans to ensure stability even in variable conditions.
Double circuit laser pack
Dual cooling circuit for independent management of laser source and optics.
LT -4°F
Version for very low temperature environments with dedicated components and controls.
Dual frequency 50/60 Hz
International compatibility for maximum installation flexibility.
Complete
Extended operating limits
Maintenance
Maintenance
Maximum level of reliability
Compact
Silent
EEV electronic
expansion valve
SEC.blue Light Controller
The programmable SEC.blue Light SMP4600 microprocessor controller optimizes the operation of both the refrigeration and hydronic circuits, while ensuring seamless integration of WRA ErP units into BMS (Building Management System) platforms.
Main features
- ON/OFF regulation of compressors based on setpoint temperature;
- Fan speed control;
- Measurement and display of process fluid inlet/outlet temperatures and ambient temperature;
- Preheat / anti-freeze resistance check (water side);
- Alarm history display;
- Electronic expansion valve management;
- Alarm management: HP, LP, antifreeze, tank level;
- General alarm clean contact;
- Remote digital ON/OFF input;
- Fine-tuning LASER function for single hydraulic circuit process temperature
- TTL serial interface (RS485 option)
Main functions
Frequently Asked Questions (FAQ)
Perfect applications for this product
Other coolers you might be interested in
- AIR-COOLED R1234yf
WLA Compact
APPLICAZIONE INDUSTRIALE 3,4–17,1 kBTU/hr Find out more: WLA Compact - AIR-COOLED R513A
WRA
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WLA Precision
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WPA Mini
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WPA
SCROLL COMPRESSORS 563 – 1.911 kBTU/hr Find out more: WPA - AIR-COOLED R513A R1234ze
WSA/WSI
SCREW COMPRESSORS 955 – 6.348 kBTU/hr Find out more: WSA/WSI - WATER-COOLED R513A
WSW
SCREW COMPRESSORS 805 – 5.216 kBTU/hr Find out more: WSW - FOR OIL COOLING –
ORA
APPLICAZIONE INDUSTRIALE – Find out more: ORA
Speak with one of our experts and find the ideal cooling solution for your system.
Our specialists are available to provide you with a detailed analysis and dedicated technical consulting.