WLA Precision
Industrial Chiller 205-546 kBTU/hr – R32
Air-cooled industrial liquid chiller
Cooling Capacity
205 - 546 kBTU/hr
Power Supply
400Vac – 3ph – 50Hz
24 VAC
Compressors
Scroll
Level of protection
Refrigerant
The new WLA Precision range of industrial liquid chillers for OUTDOOR applications has been designed with environmental sustainability in mind. Featuring R32 refrigerant, characterized by a low Global Warming Potential (GWP), these units reduce environmental impact while delivering a more eco-friendly and energy-efficient cooling solution.
Designed to deliver the reliability required by production processes operating 24/7, the WLA Precision ErP range incorporates advanced technologies—including high-surface-area evaporators and condensers, an electronic expansion valve, and high-efficiency axial fans—providing thermodynamic performance that exceeds the requirements of the European ErP Ecodesign Directive.
It has a Global Warming Potential (GWP) of 675, significantly lower than R410A (GWP=2088), and is classified as not damaging to the ozone layer (ODP=0).
- Efficient: delivers similar performance with a lower refrigerant charge compared to R410A.
- Sustainable: It is in line with European F-GAS regulations which are pushing towards the elimination of refrigerants with a high environmental impact.
Manufactured to EN60204-1 and includes: main isolator with door lock, numbered electrical cables, circuit breakers and standard phase monitor. The standard IP54 protection rating allows for external installation. The active ventilation system is standard and includes a heater and filter fans.
Programmable microprocessor control. UV-resistant IP54 graphic display with menu in 6 languages: Italian, English, German, French, Russian, Spanish.
Robust structure designed and manufactured to ensure total resistance to atmospheric agents and corrosion. Base, uprights and panels made of galvanised carbon steel, assembled using stainless steel/galvanised metal parts and painted with RAL 7035 polyester powder with a textured finish.
The refrigeration circuit is equipped with two hermetic scroll compressors installed in parallel and optimised for operation with R32 refrigerant. The standard EEV electronic expansion valve, fitted with sensors on the refrigeration circuit, allows for optimised operation of the refrigeration circuit under any thermal load condition, guaranteeing maximum efficiency at all times.
High-pressure horizontal multistage centrifugal pumps in stainless steel, specifically designed for process cooling. Head available: P2 – 2barg P3 – 3barg; P5 – 4.5/5barg; P3+P3 standby dual pump. P5 INVERTER stainless steel pump with MGE motor featuring permanent magnets and a high-efficiency frequency converter.
STANDARD AC axial electric fans fitted with an IP54-rated asynchronous motor with an external rotor and equipped with electronic phase-cut speed control as standard. The blades are made of corrosion-resistant PP technopolymer and protected by a safety grille. High-efficiency EC axial fans (standard on LASER and LT versions), fitted with an electronically commutated brushless motor featuring integrated temperature control and continuous speed regulation from 10% to 100%.
Finned coil heat exchanger with copper tubes and corrugated aluminium fins arranged in a longitudinal “V” geometry. The angle is specifically studied and selected to maximise the air-refrigerant gas heat exchange efficiency. The technical solution with mini-tubes maximises the surface area exposed to the air, allowing for compact dimensions and a reduction in refrigerant charge.
Enhanced thermodynamic performance in compliance with Ecodesign regulations
Energy Efficiency:
Thermodynamic optimisation and enlarged evaporator and condenser heat exchange surfaces enable WLA Precision to achieve high energy efficiency.
WLA Precision complies with ErP2021 – SEPR HT (EU) 2016/2281 and SEPR MT (EU) 2015/1095 requirements.
Extended operating limits
WLA Precision units operate at full load up to 113°F and down to 14°F ambient outdoor temperatures (-4°F for LT version), producing chilled water from 77°F to 41°F (43°F/59°F in BRINE version).
SEC.blue electronic control
The SEC.Blue microprocessor control, with advanced logic, optimises the operation of WLA Precision in every configuration. It features a multilingual graphic display and allows for remote control and BMS integration via RS485 ModBus and Ethernet.
New configurations
The new LT (-4°F), Brine (water down to 14°F) and pressure hydraulic circuit versions expand the WLA Precision range, making it suitable for various applications and ensuring maximum safety of the production process.
Tailor-made solutions for every need
A wide range of versions and configurations makes the solution versatile for every process cooling application, ensuring efficiency, reliability, and operational adaptability.
STANDARD VERSION (NON-FERROUS)
It includes a brazed plate evaporator in AISI316 protected from the risk of freezing by a differential pressure switch and a standard antifreeze probe. The hydraulic module is suitable for atmospheric hydraulic circuits and includes a tank in AISI304 with a level sensor, an automatic adjustable hydraulic bypass valve, and circuitry made of non-ferrous materials such as stainless steel, polymers, and brass. This configuration preserves the process fluid from any contamination and is particularly suitable for process cooling in the laser, food & beverage, and chemical/pharmaceutical sectors.
PROCESS VERSION (Shell-and-tube evaporator)
It includes a direct-expansion single-circuit shell and tube evaporator with a carbon steel shell and copper tubes, installed inside a carbon steel hydraulic tank. The exchanger is protected from the risk of freezing by a differential pressure switch and an antifreeze probe. The hydronic module is suitable for pressurized hydraulic circuits and includes: a vacuum breaker, an automatic air vent, two membrane expansion vessels and an automatic adjustable hydraulic bypass valve for pump protection.
Brine 14°F Version
Designed for low temperatures with glycol water, ideal for industrial and food & beverage applications.
Laser Version
Precise temperature control with advanced regulation and EC fans to ensure stability even in variable conditions.
LT Version -4°F Ambient
The LT version operates down to -4°F and is equipped with dedicated control software, speed-adjustable brushless EC fans, and thermal insulation for the hydraulic circuit. The BRINE pumps have an oversized motor for high glycol concentrations.
PROCESS Version
Version for very low temperature environments with dedicated components and controls.
The wide range of available configurations, together with numerous options and accessories, makes WLA Precision units suitable for virtually all process cooling applications.
SEC.blue Microprocessor Control
The SEC.blue programmable microprocessor control optimises the operation of refrigeration and hydronic circuits and allows for easy connection of WLAprecision units to all BMS management systems. The proprietary operating system is generally very flexible and, on request, can be expanded with numerous additional parameters and functions.
Main features
- UV-resistant IP54 graphic display with a menu in 6 languages: Italian, English, German, French, Russian, Spanish;
- 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;
- N°5 On-Off outputs (clean contacts) for alarms and pre-alarms settable via software;
Compact, reliable and versatile
EEV electronic
expansion valve
Maintenance
Maintenance
Maximum level
of reliability
Sequencing
Dynamic setpoint
Supervision system integrability
Perfect applications for this product
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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.