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Premium PPA1208J, Service Manual

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12 

chapter III    Circuit Diagram   

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for PPA1208J

Page 1: ...AIRE ACONDICIONADO PORTATIL PORTABLE AIR CONDITIONER PPA1208J ...

Page 2: ... 3 Remote control battery installation 4 Trouble Shooting 5 Electronic Control Theory 5 Typical Trouble Analysis 7 Trouble Shooting for Cooling Failure 11 Refrigerant Principle 11 Trouble Shooting Flow for Cooling Failure 12 Circuit Diagram 13 Explosive View 14 ...

Page 3: ... too big or blow by 1 Clean filters 2 Remove the blockage 3 Adjust room area or strengthen the seal Water leakage 1 Machine doesn t stand upright 2 Water outlet is blocked 1 Let machine stand upright 2 Unchoke water outlet Abnormal noise of machine 1 Machine is not placed well 2 Filters is blocked 1 Let machine on flat place and stand upright 2 Clean the filters Heat air doesn t go out immediately...

Page 4: ...pter II Remote control battery installation O pen the cover of battery case in remote control According to the polarity tips install batteries into remote control correctly positive pole to negative pole to ...

Page 5: ...ficiently An electronic schematic diagram as following this is a typical schematic diagram for special machine please note the circuit diagram attached to the machine From above circuit diagram we can see that the whole diagram is divided into two parts compressor water thrashed motor four way valve fan motor water level switch indoor temperaturn sensor coil pipe sensor transformer Display Panel i...

Page 6: ...mmutation diode capacitive E1 wave filtering and get volts d c about 12V to supply relay and drive integrated package ULN2003 the other way go through current limiting resistance RR1 and 5V stabilized voltage 7805 to supply SCM peripheral circuit and display power The core of control part is HT46R47 Its input parts are keys receiving head room temperature sensor evaporator temperature sensor and w...

Page 7: ...lay P2 Refer to Section One Chapter I Display stroke lack or indicator off 1 Control panel is in a bad contact with display panel then need to re insert plug 2 Damage in display panel then need to replace display panel Trouble Shooting Flow for Machine Turn On Failure NO Re plug N line and L line make them in a good contact with film inserted After power on key POWER cannot run machine Check if po...

Page 8: ...place compressor capacitance then check if it is OK Replace the compressor with the same model No Setup the temperature to lowest cooling mode or highest hesting mode If there is strong power out from compressor realy YES NO If the setting temperature under cooling mode is too high If the setting temperature under heating mode is too low YES NO Compressor turn on failure If there is at least 3 min...

Page 9: ...erminator plug then check if it is OK Repalce the fan motor with the same model No then check if it is OK NOT OK OK Replace main control panel NOT OK OK Replace main control panel Replace main control panel Check if there is strong power out from low fan speed relay Low fan speed running failure after machine turns on Check if there is strong power out from power supply line of low fan speed High ...

Page 10: ...n body in wind wheel wind wheel cannot work with big resistance YES or NO Remove foreign body YES NO After re insert fan terminal plug OK or NOT NOT OK OK After replace fan motor with the same model No OK or NOT NOT OK OK Replace main control panel Fan running failure ...

Page 11: ...compressor compresses normal temperature and low pressure refrigerant gas to a high temperature and high pressure gas then send it to condenser In condenser the high temperature and high pressure refrigerant gas will be cooled down to a mesothermal 45 50 and high pressure refrigerant liquid by fan after that the refrigerant passes capillary where it will be decompressed and throttled and then goes...

Page 12: ...ure don t go down the reasons may be the following 1 Compressor stops suddently several minutes later after its starting and with violent vibration three or more minutes later restart it unsuccessfully This may be caused by system blockage which need to unchoke system or replace capillary or by compressor welding blockage 2 Compressor works with slight vibration evaporator frosts partly and work c...

Page 13: ...12 chapter III Circuit Diagram ...

Page 14: ...13 Chapter Ⅳ Explosive View ...

Page 15: ...14 ...

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