The fan motor is working slightly weak when the heat exchange temperature is above 28 ℃ and 
below 35℃ 
The fan motor is working weak if the he heat exchange temperature remains 35℃ for less than 4 
minutes. 
The fan motor works as set if the he heat exchange temperature remains 35℃ for more than 4 
minutes 
The fan motor works as set if the he heat exchange temperature remains above 38℃ 
 
 
 
5.1.2.2    When the compressor stops and remains idle for 3 minutes 
20 seconds after the compressor stops, the up wind volume is weak (switching to SSLO in silent 
running mode) and then slightly weak. While the down wind volume is stoped 
If the compressor stops when the heat running starts, the wind volume is weak   
 
 
5.1.2.3   High Work-intense protection control 
Under the heating mode, the high work-intense protection will be carried out according to the 
heat-exchange temperatures as shown in the table below. 
 
High Work-intense protection control: 
 
Heat-exchange temperature        frequency values when the high work-intense starts 
  THHEAT6   74.7 
  THHEAT5   70.3 
  THHEAT4   65.1 
  THHEAT3   62.2 
  THHEAT2   52.9 
  THHEAT1   51.6 
  THHEAT0   47.1 
 
Indicated 
frequency 
Normal    C  D E  stop   D    C B       A      B    C  D  E  stop 
    
 
  
  High Work-intense protection                 High Work-intense 
protection alarm 
 
High Work-intense protection alarm will start if there are two times of high work-intense protection 
within 30 minutes. 
If the heat-exchange temperature does not reach THHEAT 2, it will resume to the normal temperature 
level control 
The smaller one of the high work-intense frequency and level frequency will be the operation data. 
 
 
5.1.2.4    Low Work-intense protection control 
Specification for heat-exchange temperature sensor 
B fixed number=3700 R(25℃)= 10KΩ 
Under the cooling /moisture removing modes, the low work-intense protection will be carried out 
according to the heat-exchange temperatures as shown in the table below. 
22
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