Equipped with a Newly Developed,
Highly Efficient Compact Ccompressor

The new UWAP50BY1　model achieves a 7% COP increase, and a newly developed denture mold has enabled the production of the compact UWAP50BY1 model with a 13% reduction in volume and weight.　

High Accuracy and High Durability

Gate rotors are positioned to the right and left of the screw to eliminate the eccentric load produced by a pressure differential. The orthogonal rotor shaft uses high-precision ball and roller bearings, enabling it to last twice as long as the twin-screw type. The gate rotors are well balanced to equalize pressure while reducing noise and vibration during operation.

Ccompressor

Structure and mechanism of a single- and twin-form unit

Single screw ccompressor(Technology adopted by Daikin)

Twin screw ccompressor

Comparison between a single- and twin-form unit - Bearing life is longer

Single screw ccompressorPressure and balance are maintained by the screw rotor's upper and lower sides.

• The low bearing load confers long-life to the screw rotor and gate rotor bearings.

• Low vibration

Low Vibration and Sound Levels

Daikin water chillers use gate rotors made of high-performance engineering plastic for smooth meshing with the screw rotor, thus minimizing shock and vibration while maintaining stable operation. The gate rotors are well balanced to equalize pressure while reducing noise and vibration during operation.

Ccompressor

Comparison between a single- and twin-form unit - The reason for low vibration

Single screw ccompressor(Technology adopted by Daikin)

The "12-compression process" per rotation means minimal pressure fluctuation, and enables miniaturization, weight savings, and smooth rotation.

Twin screw ccompressor

Pressure fluctuations are large with the "5-compression process" per rotation.

• The single screw construction eliminates blow-by from high to low pressure sections to minimize energy loss.

• The simple, single rotor construction enables a lightweight, compact design.

• Power transmission between rotors is reduced, thus eliminating friction wear.

• 6 grooves are partitioned up and down by the gate rotors to create 12 compression rooms.

7-year maintenance interval (approximately 40,000 hours)

The simplified lubrication system, including a high/low pressure differential lubrication system and ball and roller bearings, reduces the factors that can contribute to problems.

Single screw ccompressor(Technology adopted by Daikin)

Twin screw ccompressor