ISO 5151 60K BTU Air Enthalpy Calorimeter for Air Conditioner Testing
The ISO 5151 Air Enthalpy Calorimeter is a professional HVAC performance test system designed for measuring the cooling capacity, heating capacity, airflow rate, electrical input and energy efficiency of air conditioners under controlled laboratory conditions.
The system uses indoor and outdoor environmental chambers, airflow measurement modules, temperature and humidity sensors, electrical parameter monitoring and computer-based data acquisition to calculate air-side enthalpy difference and determine air conditioner performance according to ISO 5151-related test methods.
- Applicable standard: ISO 5151
- Test object: Non-ducted air conditioners and air-to-air heat pump products
- Capacity range: 6,000–60,000 BTU/h
- Test configuration: Dual-station air enthalpy calorimeter system
- Indoor airflow range: 300–4,000 m³/h
- Outdoor airflow range: 200–2,000 m³/h
- Measured parameters: Temperature, humidity, airflow, voltage, current, power, frequency and power factor
- Applications: HVAC laboratories, air conditioner manufacturers, certification testing institutions and R&D centers
- MOQ: 1 set
- Delivery time: Around 3 months, depending on final configuration
Air Enthalpy Calorimeter Description
ISO 5151 60K BTU Dual-Station Air Enthalpy Calorimeter for Air Conditioner Performance Testing
The ISO 5151 Air Enthalpy Calorimeter is a professional HVAC performance test system designed to evaluate the cooling capacity, heating capacity, airflow rate, electrical input and energy efficiency of air conditioners under controlled laboratory conditions.
By measuring air temperature, humidity, airflow rate and electrical parameters, the system calculates the air-side enthalpy difference and determines the actual cooling or heating performance of the unit under test. It provides a repeatable laboratory platform for performance rating, product development, certification preparation and quality verification.
The system is suitable for ISO 5151-related testing of non-ducted air conditioners and air-to-air heat pump products, including split units, window units, freestanding units, cassette-type units and inverter air conditioners. For other HVAC product types, the final chamber configuration and test method should be reviewed according to the applicable standard and customer requirements.
System Configuration and Measurement Capability
The calorimeter combines indoor and outdoor environmental chambers, airflow measurement devices, temperature and humidity sensors, electrical parameter monitoring and computer-based control software to form a complete HVAC performance test platform.
Indoor and Outdoor Environmental Chambers
The system includes two controlled environmental chambers:
- Indoor Chamber
Simulates indoor air conditions for cooling and heating capacity evaluation. - Outdoor Chamber
Reproduces outdoor ambient conditions required for standard air conditioner performance testing.
This configuration allows the test unit to operate under controlled indoor and outdoor conditions, helping laboratories obtain stable and repeatable performance data.
Dual-Station Test Design
The system is designed with dual-station testing capability to improve laboratory efficiency.
It can support:
- Two single-phase air conditioners up to 30,000 BTU/h tested independently
- One air conditioner up to 60,000 BTU/h tested using a single station
This design is suitable for laboratories that need to test different residential air conditioner capacities while maintaining flexible use of chamber resources.
Airflow Measurement
The system integrates airflow measurement modules for both indoor and outdoor test chambers.
| Chamber | Airflow Range |
|---|---|
| Indoor Chamber | 300–4,000 m³/h |
| Outdoor Chamber | 200–2,000 m³/h |
Airflow measurement is used together with temperature and humidity data to calculate air-side enthalpy difference and determine cooling or heating capacity.
Electrical Parameter Monitoring
The system records electrical parameters of the air conditioner under test, including voltage, current, power, frequency and power factor.
| Parameter | Measurement Range |
|---|---|
| Voltage | 0–300 V |
| Current | 0–20 A |
| Power | 0–5 kW |
| Frequency | 50 / 60 Hz |
| Power Factor | 0–1 |
These values are recorded by the computerized data acquisition system and used for performance and energy efficiency calculation.
Computerized Control and Data Acquisition
The air enthalpy calorimeter uses a computer-based control platform for test condition management, data collection and performance calculation.
Key functions include:
- Real-time monitoring of temperature, humidity, airflow and electrical parameters
- Automatic data logging during the test process
- Cooling and heating capacity calculation
- EER and COP calculation according to the selected test method
- Graphical data display and report output
- Test condition control for repeatable laboratory operation
This automated workflow reduces manual recording errors and helps laboratories maintain consistent test procedures.
Air Enthalpy Calorimeter Technical
Test Capacity and Configuration
| Parameter | Specification |
|---|---|
| Applicable Standard | ISO 5151 related air conditioner performance testing |
| Test Object | Air conditioners and air-to-air heat pump products |
| Cooling Capacity Range | 6,000–60,000 BTU/h |
| Heating Capacity Range | 6,000–60,000 BTU/h |
| Test Configuration | Dual-station air enthalpy calorimeter system |
| Station A Capacity | 6,000–60,000 BTU/h |
| Station B Capacity | 6,000–30,000 BTU/h |
| Test Chamber Type | Indoor chamber + outdoor chamber |
| Applicable AC Types | Split units, window units, freestanding units, cassette-type units and inverter air conditioners |
| Maximum Window Unit Size | W1000 × D800 × H1000 mm |
| Maximum Split Unit Size | W1000 × D500 × H2000 mm |
Airflow and Electrical Measurement
| Parameter | Specification |
| Indoor Airflow Range | 300–4,000 m³/h |
| Outdoor Airflow Range | 200–2,000 m³/h |
| Voltage Measurement | 0–300 V |
| Current Measurement | 0–20 A |
| Power Measurement | 0–5 kW |
| Frequency | 50 / 60 Hz |
| Power Factor | 0–1 |
| Control System | Computer automatic control |
| Data Acquisition | Temperature, humidity, airflow and electrical parameters |
Get Free Quote for ISO 5151 Air Enthalpy Calorimeter
We supply dual code air enthalpy calorimeter systems designed for professional HVAC performance laboratories.
The Core Value We Deliver to You
- Complete HVAC testing solution for ISO 5151
- Dual station testing improves laboratory efficiency
- Computerized control for automatic measurement
- Wide capacity range up to 60,000 BTU/h
- Engineering support for laboratory setup
Submit an inquiry to receive technical specifications, quotation, and project consultation within 24 hours.
Applications and Laboratory Value
The ISO 5151 Air Enthalpy Calorimeter is suitable for HVAC manufacturers, third-party testing laboratories, certification support laboratories and R&D centers.
Typical applications include:
- Air Conditioner Performance Testing
Measures cooling and heating capacity under controlled indoor and outdoor test conditions. - Energy Efficiency Evaluation
Supports calculation of performance indicators such as EER, COP and electrical input. - Product Development and Engineering Validation
Helps engineering teams compare compressor, heat exchanger, fan and system control performance during product development. - Production Quality Verification
Supports batch performance checking and product consistency verification before shipment. - Certification Preparation
Provides laboratory test data and performance documentation for standard-related evaluation.
Standards and Calibration Support
The system is designed for ISO 5151-related air conditioner performance testing. It can also be configured according to customer laboratory requirements for related air conditioner performance test methods.
Typical standard references may include:
- ISO 5151 — Non-ducted air conditioners and heat pumps — Testing and rating for performance
- GB/T 7725 — Room air conditioners
- Other regional or customer-specified HVAC performance test methods, subject to final configuration review
To maintain measurement reliability, periodic verification or calibration of airflow sensors, temperature sensors, humidity sensors and electrical measurement instruments is recommended.
Procurement Value
For laboratories establishing or upgrading HVAC performance testing capability, the ISO 5151 Air Enthalpy Calorimeter provides a complete and repeatable platform for air conditioner capacity and energy efficiency evaluation.
Key benefits include:
- Cooling and heating capacity measurement under controlled conditions
- Dual-station design for improved laboratory productivity
- Integrated airflow, environmental and electrical measurement
- Automated data acquisition and report generation
- Flexible configuration for different residential air conditioner capacities
- Suitable for R&D, quality control and certification preparation
Air Enthalpy Calorimeter Detail
What is an air enthalpy calorimeter used for?
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