- An upgraded, dedicated compressor for each model.
- The totally enclosed fan cooled motor is adopted for all models.
- The direct-couple driving system eliminates kinetic loss and bending stress.
- Extended maintenance cycle, simplified maintenance work.
- The discharge air volume is increased by 5%. Low noise, less vibration (best balance with slower rotation)

Model			Z755WS4-R	Z756WS4-R
Items		Unit
Power frequency		Hz	50	60
Power supply voltage		V	200 / 380 / 400 / 415	200 / 220 / 380 / 400 / 440
Free air delivery		m³ / min	13.0
Delivered air pressure		MPa	0.7
Volume control system			Saving energy A.U.C & auto. start & stop selection
Intake air pressure & temperature			Atmospheric pressure (0 to 40°C)
Main motor power		kW	75
Motor type			3-phase squirrel cage 2P totally enclosed external fan (IE3 Motor)
Starter			Automatic star-delta
Drive system			Direct coupled motor
Cooling system			Water cooled
Fan motor power		kW	0.08	0.12
Oil filling quantity			60
Cooling water amount			110
Dryer	Air dew point at outlet	°C	10(under pressure)
	Refrigerator power	kW	2.4	2.8
	Refrigerant		R·410A
Discharge pipe diameter		R	2
Dimension , L x W x H (body)		mm	1200 x 2240 x 1700
Total mass (dry state)[Without dryer]		kg	1700
Noise level [OP1.5m]		dB·A	66
Dimension , L x W x H (Without dryer)		mm	1200 x 1800 x 1700

Outside Appearance