Dehumidification System for Environmental Chambers

Product Specifications

Technical details and manufacturing context for Dehumidification System

Definition

The dehumidification system is a critical component of an environmental chamber that actively extracts water vapor from the enclosed atmosphere. It works in conjunction with the chamber's control system to achieve and maintain specific, often low, relative humidity setpoints required for testing, storage, or processing of sensitive materials, components, or products. The system typically operates by cooling the chamber air below its dew point, causing moisture to condense on cold coils (refrigeration-based dehumidification). The condensed water is then drained away, and the dried, cooled air may be reheated before being recirculated back into the chamber to achieve the target temperature and humidity conditions. This component is available in configurations with dehumidification capacities ranging from 50 to 200 liters per day (based on 30°C/80% RH inlet air, per GB/T 19411), air flow rates from 500 to 2000 cubic meters per hour (per ISO 580), and humidity control accuracy of ±1 to ±3% RH (per ISO 12571). It operates within a temperature range of 5 to 50°C (per IEC 60068-2-1) and a humidity range of 20 to 90% RH (per IEC 60068-2-78). The system requires a 220–240 V AC power supply (50/60 Hz, single phase, per IEC 60364) and consumes 1.5 to 5.0 kW at rated capacity (per ISO 5151). It uses R410A refrigerant (R32 available on request, per ISO 817) and features rotary or scroll compressors (per ISO 21978). Noise levels range from 55 to 70 dB(A) at 1 meter distance (per ISO 3744), and the enclosure is rated IP54 to IP65 (per IEC 60529). Dimensions vary from 600×600×1500 mm to 1200×800×2000 mm (W×D×H), with weight ranging from 80 to 300 kg. Materials used include stainless steel, copper, and aluminum. All listed values are reference ranges; verify model-specific specifications and standards with the legal manufacturer or supplier.

Working Principle

The dehumidification system operates on the refrigeration principle. Air from the environmental chamber is drawn over evaporator coils that are cooled below the dew point of the air. Moisture in the air condenses on the cold coil surfaces and is collected and drained away. The now-dried air passes over a condenser coil where it is reheated to the desired temperature before being returned to the chamber. This process continuously reduces the absolute humidity, allowing the chamber's control system to maintain precise relative humidity setpoints. The system's capacity is influenced by the inlet air conditions, such as temperature and humidity, and the air flow rate. Proper sizing and control are essential to achieve the required humidity levels, especially in applications requiring tight tolerances.

Common Materials

Stainless Steel, Copper, Aluminum

Technical Parameters

Parameter	Typical range	Notes & selection driver
Dehumidification Capacity	50–200 L/day	Based on 30°C/80% RH inlet airGB/T 19411
Air Flow Rate	500–2000 m³/h	Higher flow reduces humidity gradientISO 580
Humidity Control Accuracy	±1–±3 % RH	Tighter tolerance requires PID controlISO 12571
Operating Temperature Range	5–50 °C	Below 5°C coil frosting may occurIEC 60068-2-1
Operating Humidity Range	20–90 % RH	Above 90% RH may cause condensationIEC 60068-2-78
Power Supply	220–240 V AC	50/60 Hz, single phaseIEC 60364
Power Consumption	1.5–5.0 kW	At rated capacityISO 5151
Refrigerant Type	R410A	R32 available on requestISO 817
Compressor Type	Rotary/Scroll	Scroll for higher efficiencyISO 21978
Noise Level	55–70 dB(A)	At 1m distanceISO 3744
IP Rating	IP54–IP65	IP65 for outdoor installationIEC 60529
Dimensions (W×D×H)	600×600×1500–1200×800×2000 mm	Custom sizes available
Weight	80–300 kg	Depends on capacity and configuration

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Evaporator Coil
Cools the incoming moist chamber air, causing water vapor to condense into liquid.

Material: Copper or Aluminum
Compressor
Circulates refrigerant through the system, providing the cooling capacity for the evaporator coil.

Material: Cast Iron, Steel
Condensate Drain Pan and Line
Collects and removes the liquid water condensed from the air.

Material: Stainless Steel, Plastic
Re-heater
Warms the dried, cooled air before it is returned to the chamber to prevent overcooling and to precisely control the final air temperature.

Material: Stainless Steel, Incoloy

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Environmental Chamber

View system integration details

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Frequently Asked Questions

What is the dehumidification capacity range?

The dehumidification capacity is listed as 50 to 200 liters per day, based on inlet air at 30°C and 80% relative humidity, per GB/T 19411. This is a reference range; the actual capacity depends on the specific model and operating conditions.

What power supply is required?

The system requires a 220–240 V AC power supply, 50/60 Hz, single phase, per IEC 60364. Power consumption at rated capacity is 1.5 to 5.0 kW, per ISO 5151. Confirm electrical requirements with the manufacturer for your installation.

What refrigerant types are available?

The standard refrigerant is R410A, per ISO 817. R32 is available on request. The choice of refrigerant affects system performance and environmental impact; consult the manufacturer for options.

What is the operating temperature and humidity range?

The operating temperature range is 5 to 50°C, per IEC 60068-2-1, and the operating humidity range is 20 to 90% RH, per IEC 60068-2-78. These are reference ranges; ensure the system is selected for your specific chamber conditions.

Data Basis

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pressure:	Atmospheric to 1.5 bar maximum
dew point:	-40°C to +20°C achievable
flow rate:	50 to 500 m³/h capacity
temperature:	15°C to 40°C operational range

Dehumidification System

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards