Service
Energy Audit & OSE
MV2 data feeds the baseline and the prioritised improvement roadmap.
View serviceVerify what your VRF system actually delivers.
Cooling capacity and COP measured on site from real operating data — not read off a manufacturer's datasheet.
A*STAR
System accuracy verified by the National Metrology Centre
ISO 5151
The 2017 standard the measurement method is built on
Any brand
Compatible with all VRF manufacturers
Two modes
Permanent mass-flow, or non-intrusive ultrasonic spot-check
What it does
Independent measurement, not manufacturer data.
MV2 is a measurement and verification system for Variable Refrigerant Flow installations. It is designed for both intrusive and non-intrusive applications, and its accuracy has been verified by A*STAR's National Metrology Centre.
It monitors VRF systems on real-world performance data, which removes the need to rely on manufacturer-provided figures. By delivering accurate and independent verification, MV2 lets owners and facility managers make decisions on what the plant is doing rather than on what it was specified to do.
When to use it
A VRF system under performance dispute, a retrofit that needs a defensible before-and-after, a regulatory or reporting deadline, or a routine spot-check that a system is still operating at the efficiency it was commissioned at.
What is measured
Refrigerant flow, temperatures, pressures and electrical inputs — enough to calculate cooling capacity and Coefficient of Performance in real time.
What you receive
Real-time capacity and COP output, and the data behind it, in a form that supports a decision about what to fix first.
Benefits
Built for owners and facility managers.
Real-time performance evaluation and spot-checks keep VRF systems operating at peak efficiency, and support compliance with stringent regulatory standards.
- Real-time performance monitoring. Instantly calculates cooling capacity and Coefficient of Performance, with real-time data output.
- Intrusive and non-intrusive options. A permanent system with a mass flow meter for continuous readings, or a non-intrusive system with an ultrasonic flow meter for on-demand measurement.
- Comprehensive data collection. Measures refrigerant flow, temperatures, pressures and electrical inputs to calculate system efficiency.
- Adherence to international standards. Developed on ISO 5151:2017, so the metrics are standardised rather than proprietary.
- Versatile compatibility. Works with all VRF system brands, across diverse installation environments.
- Data-driven insights. Pinpoints where a system is losing efficiency, so optimisation work is aimed rather than general.
- No reliance on estimates. Concrete, real-world measurement in place of an assumed performance figure.
Technical characteristics
Developed on ISO 5151.
Each parameter below is measured on site. Capacity and COP are calculated from them in real time rather than inferred.
- Sub-cool temperature and pressure
- Measured
- Super-heat temperature and pressure
- Measured
- Refrigerant volume flow rate, for mass flow rate
- Measured
- Compressor and condenser fan power
- Measured
- Cooling capacity and COP
- Calculated, real time
- Flow measurement, permanent installation
- Mass flow meter
- Flow measurement, non-intrusive
- Ultrasonic
- Accuracy verification
- A*STAR National Metrology Centre
Applications
Measurement & verification for VRF systems.
The current product page lists a single application. These three are how that one line breaks down in practice.
Performance verification
Confirm a newly commissioned VRF system reaches the capacity and COP it was specified at.
Ongoing spot-checks
Non-intrusive measurement on demand, to catch drift before it shows up on a utility bill.
Reporting & certification
Measured evidence for energy reporting, where an estimate would not be accepted.
Connected work
Measurement is the start of the work, not the end.
Knowledge Centre
Turning plant data into priorities
What measured performance usually reveals that a datasheet cannot.
Read articleFind out what your VRF system is really doing.
Talk to an engineer