ISO 5151 60K BTU Dual Code Air Enthalpy Calorimeter for Air Conditioner Performance Testing

The ISO 5151 air enthalpy calorimeter is a professional HVAC testing system used to evaluate the cooling and heating performance of air conditioners under controlled laboratory conditions. By measuring air temperature, humidity, airflow rate, and electrical parameters, the system calculates the enthalpy difference of air streams to determine the actual cooling or heating capacity of the unit under test.

Designed for ISO 5151 air conditioner testing standards, the calorimeter allows laboratories and manufacturers to measure key performance indicators such as cooling capacity, heating capacity, energy efficiency ratio (EER), coefficient of performance (COP), and electrical consumption.

The system supports testing of multiple types of air conditioners including split units, window units, freestanding systems, ceiling box units, ducted systems, and inverter air conditioners, making it suitable for HVAC research laboratories, certification institutions, and appliance manufacturers.

KingPo Factory Advantages

KingPo provides advanced HVAC laboratory systems designed for reliable performance testing and certification applications. The air enthalpy calorimeter integrates environmental chambers, airflow measurement systems, and electrical monitoring modules to create a complete testing platform.

•  Stable indoor and outdoor environmental chambers for accurate HVAC testing
• Integrated electrical measurement system for voltage, current, power, and frequency
• Flexible configuration supporting different air conditioner sizes and capacities
• Dual station testing design for improved laboratory productivity
• Optional calibration documentation and technical support services

These features ensure consistent testing conditions and reliable measurement results for air conditioner performance evaluation.

Professional Construction & Technical Precision

The calorimeter system combines environmental simulation chambers, airflow measurement systems, and automated control software to perform accurate HVAC performance testing.

Dual-Chamber Test Structure

The system consists of two main environmental chambers:

• Indoor Chamber (A Chamber)
  Simulates indoor air conditions for cooling and heating performance evaluation.
• Outdoor Chamber (B Chamber)
  Reproduces outdoor environmental conditions required for standard HVAC testing procedures.

This configuration enables accurate simulation of real operating conditions for air conditioners.

Dual Station Testing Capability

The calorimeter includes two independent testing stations, allowing laboratories to:

• Test two single-phase air conditioners up to 30,000 BTU/h simultaneously
• Test one air conditioner up to 60,000 BTU/h when using a single station

This dual-station design significantly improves laboratory testing efficiency.

High-Precision Airflow Measurement

The system integrates airflow measurement modules for both chambers:

Integrated Electrical Parameter Monitoring

The calorimeter continuously monitors electrical parameters of the air conditioner under test, including:

• Voltage: 0 – 300 V
• Current: 0 – 20 A
• Power: 0 – 5 kW
• Frequency: 50 / 60 Hz
• Power Factor: 0 – 1

These measurements are automatically recorded by the computer control system.

Computerized Control and Data Acquisition

The system uses a computer-based automatic control platform to manage testing conditions and data collection.

Key functions include:

• Real-time monitoring of environmental parameters
• Automatic data logging and performance calculation
• Test condition control according to ISO 5151 requirements
• Graphical data display and reporting

This automation improves testing accuracy and simplifies laboratory operation.

Primary Use Cases & Business Value

Air enthalpy calorimeters are essential tools in HVAC product development and certification laboratories.

Typical applications include:

• Air Conditioner Performance Certification:Measure cooling and heating capacity according to ISO 5151 testing procedures.
• Product Development & Engineering Validation:Evaluate compressor efficiency and optimize system performance during R&D.
• Energy Efficiency Evaluation:Determine EER and COP values required for regulatory approval.
• Production Quality Control:Verify performance consistency of air conditioner units during manufacturing inspection.

These capabilities help manufacturers improve product reliability while accelerating certification processes.

Compliance & Regulatory Assurance

The system supports testing procedures defined in international HVAC performance standards, including:

•  ISO 5151 — Non-ducted Air Conditioner Performance Testing
• GB/T 7725 — Air Conditioner Testing Standard (China)
• AHRI 210/240 — Air Conditioning Equipment Performance Rating

To maintain measurement accuracy, laboratories typically perform periodic calibration of airflow sensors, temperature probes, and electrical measurement instruments.

Procurement Benefits

Investing in a professional air enthalpy calorimeter provides HVAC laboratories with a reliable and efficient testing solution.

Key benefits include:

• Accurate cooling and heating capacity measurement
• Dual station testing for improved productivity
• Automated data acquisition and reporting
• Wide capacity range suitable for residential air conditioners
• eliable testing platform for certification and product development

For laboratories establishing or upgrading HVAC testing facilities, the ISO 5151 air enthalpy calorimeter provides a stable platform for high-precision air conditioner performance evaluation.