




Fully-shaped aerodynamic propellers are designed to push air with a large wing surface, providing both high volume and quiet operation with minimal turbulence.

To suppress turbulence and achieve quiet operation, the
curved ribs of the grille are optimized to meet the outflow of air.

The scroll ccompressor means smooth running, minimal vibration, and low operation noise.

These compactly designed outdoor units have an interior layout optimized for the smooth flow of air.

The lightweight design makes delivery and installation easier than ever before.

Instead of using an accumulator to adsorb excess refrigerant, Daikin outdoor units have an in-pipe receiver located away from the ccompressor. By preventing the return of liquid to the ccompressor, this receiver enhances reliability.

To optimize heating performance, temperature differences between the air in the indoor/outdoor heat exchanger and the intake air are monitored and accurate adjustments made to provide the best operating parameters, such as activating the defrost mode and minimizing indoor temperature drops caused by frost. For example, if the outdoor temperature falls to -1.5°C, the integral heating capacity is raised about 20%.
As operating conditions change, fuzzy logic precisely controls actuation of the electronic expansion valve.
Cooling is efficient even in winter when indoor temperatures are higher than those outside, such as in underground public spaces or offices with many computers.
• Heat pump/RY71–140LU: possible up to -5°C
• Cooling only/R71–140LU:
possible up to -15°C
Installation of the Year-Round Cooling Kit(Sold separately) required.

If refrigerant piping length does not exceed 30 m, there is no need for on-site gas charging.
Piping can be run from the front, bottom, right or rear surface according
to how the unit is installed.
A pump-down switch is provided to make it easier to collect refrigerant if the unit is to be moved or the layout modified. This lessens the environmental impact by preventing the release of refrigerant into the atmosphere.
Effective gas monitoring reduces the labour required for operation, maintenance, and repairs.

The outdoor unit's heat exchanger fin has been specially pretreated with an acrylic PE coating to improve their resistance to salt corrosion and atmospheric pollution.