Advantages of the FSV Series

Image: Rooms with FSV (Flexi System VRF)

Advantages of the FSV Series

Technology that combines energy saving with air conditioning comfort

Panasonic’s FSV (Flexi System VRF) Series provides unique energy-saving functions to support the operation of sustainable air conditioning in a variety of business contexts, from offices to hotels and commercial facilities.

Intelligent 3-stage Oil Management System

To maintain reliability in VRF systems controlling many indoor units, securing enough compressor oil is essential. However, the standard method of forcibly operating to recover oil wastes energy and causes overheating or overcooling.
On the other hand, Panasonic FSV Series have oil level sensors in each compressor and can recover oil from other units to compensate for shortages. Thus, these systems provide comfortable environments while saving energy.

*Adapted Series: FSV-EX ME2, FSV-EX MS3

Features of 3-stage oil recovery design

Oil sensors installed in each compressor

Oil sensors installed in each Panasonic compressor precisely monitor oil levels, eliminating unnecessary oil recovery.

Highly functional oil separator

Thanks to extended separate piping, oil recovery efficiency reaches 90%, minimising the oil to be discharged from the compressor.

Variable Evaporation Temperature (VET)

Since 2006, all Panasonic VRF systems have included special VET technology, with variable refrigerant temperature, as standard. Our ‘smart logic’ system checks the temperature every 30 seconds, automatically adjusting the refrigerant temperature according to actual demand and outdoor conditions.

*Adapted Series: FSV-EX ME2, FSV-EX MS3, Mini-FSV LE/LEY

Image: Variable Evaporation Temperature (VET)

Indoor Unit

Calculate indoor refrigerant temperature and control the airflow automatically based on the difference between the setting temperature and actual indoor temperature.
* When fan speed is Auto.

Outdoor Unit

Determine system refrigerant temperature and control compressor speed.

Achieves room-by-room comfort and overall system energy savings by controlling optimal refrigerant temperature and circulation volume based on all information of the entire system.

Outdoor Unit

The evaporation temperature information required for all indoor units in the system is consolidated for optimal refrigerant temperature control.

Indoor Unit

Based on the suction temperature, the amount of circulation refrigerant volume required for the cooling load is controlled by the expansion valve of each indoor unit.

Image: room-by-room comfort and overall system energy savings by controlling optimal refrigerant temperature

Combination of VET technology and inverter compressor achieves both energy savings and comfort by smoothly controlling the compressor to match the air conditioning load without stopping the compressor for optimum performance.

Normal Environment

Room temperature changes are minimal, reducing power consumption with the Automatic Energy-saving Refrigerant Control.

Environment with Severe Cooling Load

If the set temperature is not reached after 25 minutes of operation in special environments with severe cooling loads, such as spaces with outside air entering, the system temporarily cancels energy-savingoriented operation and switches to air conditioning-oriented operation to achieve comfort as a priority. Returns to energy-saving operation after reaching the set temperature.