Custom 15 m³ Walk-In Climatic Chamber for Ariston

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Il Disgelo designed and manufactured for Ariston Thermo a custom Walk-In climatic chamber with a usable volume of approximately 15 m³, developed for thermal-climatic testing of components and systems under controlled environmental conditions.

The chamber was configured to operate over a wide temperature range, from −40 °C to +120 °C, with relative humidity control and the capability to manage internal thermal loads, integrating dedicated air-treatment, refrigeration, heating, humidification, dehumidification and safety systems.

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Developed Solution

The configuration uses a fully welded Walk-In structure, designed to provide high mechanical strength and humidity containment even during cycles involving significant temperature variations.

The system integrates a two-stage refrigeration unit with a remote air-cooled condenser, a ceiling-mounted air-treatment system and dedicated temperature and humidity control systems.

The system was designed to provide:

• climatic and thermal testing on large components;
• temperature range from −40 °C to +120 °C;
• relative humidity control;
• temperature change rates up to 2 °C/min in heating and cooling;
• management of internal thermal loads up to 5 kW at −40 °C;
• uniform air distribution throughout the test volume;
• reinforced floor for high loads;
• remote refrigeration condenser to reduce heat and noise in the test area;
• dedicated systems for managing possible leaks of flammable refrigerants from the DUT;
• safety door interlock according to temperature and operating conditions;
• programming, recording and supervision of test cycles through CliMaLogic®;
• connection to external systems via Ethernet and Modbus TCP/IP.

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Main Technical Data

• usable volume: approximately 15 m³;
• internal dimensions: 2500 × 2000 × 3000 mm;
• approximate external dimensions: 3200 × 2500 × 3900 mm;
• temperature range: −40 °C to +120 °C;
• temperature reading accuracy: ±0.5 °C over time;
• heating rate: up to 2 °C/min;
• cooling rate: up to 2 °C/min;
• relative humidity: approximately 10% to 95% RH depending on the operating range;
• humidity reading accuracy: ±1% to ±3% RH;
• permitted heat dissipation at −40 °C: 5 kW;
• access door: 1500 × 2500 mm;
• observation window: 450 × 450 mm;
• reinforced floor: up to 3500 kg/m²;
• refrigeration unit: 50 HP Dorin two-stage compressor;
• condenser: air-cooled, remotely installed outdoors;
• refrigerant: R449A;
• installed power: 90 kW;
• maximum operating power: approximately 62 kW;
• power supply: 400 V ±10%, three-phase + neutral + earth;
• approximate weight: 2700 kg;
• control: PLC with CliMaLogic® software;
• programming: up to 500 programs with 20 steps each;
• data recording: CSV export via USB;
• communication: Ethernet, VNC Viewer and Modbus TCP/IP.

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Result

The solution enables Ariston to perform controlled thermal-climatic testing on large components and systems, combining a wide temperature range, humidity control, thermal-load management and dedicated safety systems within a single custom Walk-In chamber.

The integration of a two-stage refrigeration unit, remote condenser, reinforced structure and CliMaLogic® control system allows complex test cycles to be managed with high operational flexibility.