according to the heat-exchange temperatures as shown in the table below. 
High Work-intense protection control: 
Picture 12.1 
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 
 C    D   E         D    C B       A       B  C D   E 
Normal               idle mode                                             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. 
11. Low-temperture treatment for Heating mode   
If the  four-way valve can not switch or when  the none-frost-removing 
compressor starts again under the heating mode if the heat-exchange temperature 
remains under"THHOTLTH"
(
-4.5
℃)
for 90 seconds, the compressor will start 3 
minutes of idle mode and start again when the heat-exchange temperature is 
above " THHOTLTH "
(
-4.5
℃)
 
12. Remote control 
. Start or stop running with the remote-control signals. 
. Only OFF signal is accepted when there are emergencies or malfunctions. 
1 second delay: Starting, stopping and signals except the wind direction signal all 
begins 1 second after the receiption of the signal. 
13.EEPROM control 
. EEPROM is wrong when the EEPROM parameter sum does not accord with the 
check sum after the outdoor unit is powered on. 
. The outdoor unit EEPROM is wrong will be displayed when the indoor unit 
32
 
Model:
HSU-12HS03/R2(DB)
HSU-09HS03/R2(DB)Domestic Air Conditioner