2
22
GMV-Q264WM/B-U(U)
/
460V 3ph 60Hz
24
GMV-Q288WM/B-U(U)
/
460V 3ph 60Hz
26
GMV-Q312WM/B-U(U)
/
460V 3ph 60Hz
28
GMV-Q336WM/B-U(U)
/
460V 3ph 60Hz
30
GMV-Q360WM/B-U(U)
/
460V 3ph 60Hz
/
NCHS1B(U)
EN04001120
208/230V 1Ph
60Hz
/
NCHS2B(U)
EN01600010
208/230V 1Ph
60Hz
/
NCHS4B(U)
EN04001130
208/230V 1Ph
60Hz
/
NCHS8B(U)
EN04001140
208/230V 1Ph
60Hz
1.1 Energy efficient
The products benefit from the advanced DC inverter technology, optimized air conditioner system
design, and accurate intelligent control technology.
High efficient DC inverter compressor
The DC inverter compressor is adopted for Gree DC inverter VRF units. The compressor is designed in
the high pressure chamber with excellent performance to suck directly, reduce the suction superheat loss
and increase the compression efficiency in comparison to the low pressure chamber compression.
The motor part adopts a high efficient permanent magnet synchronous motor, the rotor is a permanent
magnet, and the stator implements concentrated winding. Therefore, the efficiency far surpasses that of
a common DC inverter compressor.
Sensorless DC inverter fan motor
The DC convertor motor with a high back electromotive force is adopted to implement stepless speed
regulation in the range of 5 Hz to 65 Hz. In contrast to the common DC convertor motor, both the
operating current and motor input power are lower, but the efficiency is greatly improved.
Advanced torque control technology
The technology of minimum current and maximum torque control is adopted.
The rotor reluctance torque of DC inverter compressor is effectively used to export the maximum torque
at the cost of minimum current, thus reducing the motor winding loss and achieving higher energy
efficiency.
The low frequency torque control is implemented.
