Daikin VRV IV S – Compact Commercial Solution

The Daikin VRV IV S Series is a breakthrough in compact commercial air conditioning technology.

Designed for small offices, retail units, and high-end apartments, it delivers the advanced efficiency and control of a full VRV system in a smaller, quieter package — ideal for urban UK properties with limited outdoor space.

Compact and Space-Saving Design

The VRV IV S outdoor unit is among the smallest in its class, with a depth of just 400 mm and available capacities from 4 HP to 12 HP.
It can be installed on balconies, rooftops, or narrow service areas without performance compromise.
Refrigerant piping runs up to 120 m total (50 m vertical), providing exceptional installation flexibility.

Energy Efficiency and Performance

Using R410A refrigerant and Daikin’s inverter-controlled swing compressors, the VRV IV S achieves:

• SEER: up to 7.9

• SCOP: up to 4.6

• Energy class: A++
  Part-load efficiency exceeds 160 % thanks to continuous capacity modulation between 10 % and 100 %.
  Heat recovery models (VRV IV S+ HR) further reduce energy consumption by up to 25 % through internal heat exchange between zones.

Quiet Operation

Outdoor sound pressure levels start at only 39 dB(A) in night mode, allowing installation near residential areas or quiet commercial zones.
The Night Setback function automatically reduces fan and compressor speed during off-peak hours.

Zoning and Control

Each VRV IV S system supports up to 14 indoor units of varying types — wall, ducted, cassette, or floor-standing.
Every unit operates independently, controlled via Daikin Onecta App or Intelligent Touch Manager (iTM).
BMS connectivity (BACnet, Modbus, LonWorks) enables full building automation.

Reliability and Environmental Compliance

VRV IV S units feature automatic refrigerant charge management and self-diagnostic functions.
All models are F-Gas compliant, featuring leak detection sensors and eco-friendly inverter operation.
The design life exceeds 20 years with standard maintenance intervals.

Example Application

A 200 m² retail space in London’s Kensington area installed two 8 HP VRV IV S systems, achieving 34 % annual energy savings and a 3-year ROI compared with older split units.

Conclusion

Daikin’s VRV IV S combines high-end VRV performance with compact design.
Its modular scalability, whisper-quiet operation, and smart control make it the ideal solution for modern offices and commercial buildings where space and efficiency are critical.