Soleus Air KFTHP-09, KFTHP-12, KFTHP-18, KFTHP-24 service manual aIPT1 satisfy IPT1=IPTMAX-IPT(14.4)

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a)IPT1 satisfy IPT1=IPTMAX-△IPT(14.4℉)

TCL Air Conditioner Service Manual

(5)Defrost

Defrosting of the outdoor heat exchange is controlled by the microprocessor with detection by the indoor pipe temperature sensor.

Defrost control type is according to the JC on the PCB whether is connected.

When the JC is connect on the PCB

When one of the conditions of A, Band C is satisfy, the defrosting operation stars. A. IPT--- indoor pipe temperature

℉)

In the condition A, it must satisfy the conditions a), b)and c) then into defrosting operation.

a)IPT1 satisfy IPT1=IPTMAX-△IPT(14.4℉)

b)t550minutes(the compressor cumulative operation time50 minutes, t5 is permitted move and lower than t1 too).

c)IPT104℉,and keep 2 minutes.

According to the condition A enter the defrosting operation, the first defrosting operation time is 8 minutes; After defrosting operation one cycle, and then judge and regulate the defrosting operation time.

B. After the compressor cumulative operation time exceeds 120 minutes and the temperature of the IPT is less than 95℉ for 2 minutes. When the defrosting operation time on this condition exceeds

8 minutes, it will terminate.

C. After the compressor operates continuously for 20 minutes and the IPT is less than 73.4or from

the last time of defrosting operation is 50 minutes or more interval. When the defrosting operation time on this condition exceeds 10 minutes, it will terminate.

When the JC isn’t connected on the PCB

When the conditions of a) or b) is satisfy, the defrosting operation starts.

a)Under the heating operation, the compressor cumulative operation time exceeds 50 minutes and the temperature of the outdoor pipe temperature sensor reads lower than 14.4℉

b)Under the heating operation, the compressor cumulative operation time exceeds 50 minutes, if the indoor pipe temperature sensor reads lower than 104continuously for 2 minutes.

Note: If haven’t the outdoor pipe temperature sensor that uses the condition b) to defrost, against use the condition a).

Defrost terminating conditions

When the condition c) or d) is satisfy, the defrosting operation will terminate.

c)The outdoor defrost sensor reads 68or more.

d)The defrosting time exceeds 10 minutes.

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Contents Models CONTENTSKFTHP-12 KFTHP-18 KFTHP-24 WALL MOUNTED SPLIT-TYPEAIR CONDITIONERSHow to order spare parts IMPORTANT NOTICETechnical Specifications Model NoKFTHP-12 KFTHP-181Remote controller Remote controller2TIMER button Remote ControlREMOTE CONTROLLER The four types of remote controller is as followElectronic Controller 73.4 automatically with the AUTO FAN speed Low SpeedLow Speed 80.6aIPT1 satisfy IPT1=IPTMAX-IPT(14.4) Defrosting time chart 6.“FAN” mode operation7.4-wayValve control 8.“SLEEP” mode12.TIMER Operation 11.Auto Vane Operation control1Vane motor drive 2Positioning15.Failure Display and Handling 13.EMERGENCY Operation14.AUTO RESTART FunctionOption dDisplay Of The Control ELECTRICAL SCHEMATIC DIAGRAM MODEL KFTHP-12ELECTRICAL SCHEMATIC DIAGRAM MODEL KFTHP-18ELECTRICAL SCHEMATIC DIAGRAM MODEL KFTHP-24EXPLOSION VIEW MODEL KFTHP-12 INDOOR UNITEXPLOSION VIEW MODEL KFTHP-18 INDOOR UNITEXPLOSION VIEW MODEL: KFTHP-24 INDOOR UNITEXPLOSION VIEW MODEL KFTHP-12 OUTDOOR UNITEXPLOSION VIEW MODEL KFTHP-18 OUTDOOR UNITEXPLOSION VIEW MODEL KFTHP-24 OUTDOOR UNITPart List Indoor Unit- KFTHP-12Q’ty Part ListIndoor Unit- KFTHP-18 Part List Indoor Unit- KFTHP-24Q’ty Part ListOutdoor Unit- KFTHP-12 Part List Outdoor Unit- KFTHP-18Part List Outdoor Unit- KFTHP-24