Long distribution pipe and high drop 
The unit can realize long distribution pipe and high drop, the detailed information please refer to the 
specification, consequently, the installation can be more free, and can meet various need of the customer.
 
 
 
 
 
Quiet operation 
Adopting optimum designed blower and new designed insulation material amoug the pipe or out of the 
compresspr, outdoor unit with well-known brand compressor, reducing the operation noise. For some unit, 
the electric control systerm can adjust the noise by fixing the frequency. 
Optional safety devices and much more precision control device 
a. Ambient temperature sensor, coil temperature sensor and compressor temperature make the 
temperature control and defrosting control more precise.   
b. High/low pressure switch can feel the discharging pipe pressure and suction pipe pressure on time 
and precisely. If the pressure is too high or too low, it will stop the compressor to prevent it being damaged 
for the sake of pressure. 
3 minutes delay protection for the compressor. The device can protect the compressor from some 
damages and make the compressor have a long life. 
 
 
1. Features
50M 30M
3
min
Fi ix  ed freq  uency unit 
T3 climate for HD  U-50HT03/H
c. 
Auto checking malfunction 
 
Failure codes displayed by LED or controllers are so detailed for us to find the fail place more quickly, 
and can judge the failure content easily
 
Features