Haier HSU-12HS03/R2DB, HSU-09HS03/R2DB service manual THLHEATBL3 THLHEATBL2 THLHEATBL1 THLHEATBL0

Domestic Air Conditioner	HSU-12HS03/R2(DB)
	Model: HSU-09HS03/R2(DB)

will 3 minutes of idle mode. If the compressor senses the incoming wind temperature is higher than 23℃ after it stops for 15 minutes, the unit will switch to cooling mode. Otherwise it will keep the heating mode.

Enter into the cooling mode and follow the cooling process( supposed temperature 26℃). Compensation temperature difference will be cancelled automatically. When the temperature is high enough to stop the compressor, the compressor stops and there will be 3 minutes for idle mode. If the compressor senses the incoming wind temperature is equal to or below 23℃ after it stops for 15 minutes, the unit will switch to heating mode. The compensation temperature will be added automatically. Otherwise it will keep the cooling mode.

When the unit switches from other modes to automatic mode, if the work state changes (judge first and then work), there will be 3 minutes for idle mode. Ant then the temperature will change to the judged level according to the incoming wind temperature.

8. Trial running

The indicated frequency for trial running is 58Hz, wind volume is strong.

The trial running will last for 30 minutes and then the unit will be powered off. The unit will exit the trial running if it receives any remote-control signal during the trial running period.

There is no low work-intense running protection.

9.Low Work-intense protection control Specification for heat-exchange termperature sensor B fixed number=3700 R(25℃)= 10KO

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.

Low Work-intense protection control Picture 11.1

Heat-exchange temperature

THLHEATBL3

THLHEATBL2
THLHEATBL1
THLHEATBL0
	Indication	Normal level2 level 1 stop	level 1	level 2
	level
		normal

Low Work-intense protection control will be neglected in the trial running.

Low Work-intense protection control will be cancelled for 3 minutes temporarily after the powerful cooling starts for 1 minute

(THLH[3，2，1，0]= 7℃ ，4.6℃，2.2℃，-0.5℃)

10. High Work-intense protection control

Under the heating mode, the high work-intense protection will be carried out

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