background image

3.1 Overload pretection

When Ttube is detected too high, the compressor will run in limited  or dropped frequency.When Ttube goes on rising over the stated value, 
the compressor will stop.If Ttube resumes normal, so does the complete unit according to capacity requirements.

If 6 successive times ofoverload protection happens,the compressor won't resume running except pressing ON/OFFbutton.

In running process,if the comprssor has runfor 7 min,the times of overload protection will be cleared. 

3.2 Delay pretection for compressor

Once be stopped, the compressor can not be restarted within 3mins. 

3.3 Exhaust Temperature Pretection 

If it is detected by the outdoor controller that the exhaust temperature is too high, the compressor will run in limited  or dropped frequency.

If  the exhaust temperature goes on rising over the stated value,  the compressor will stop  and it is detected that the exhaust temperature

has resumed normal, the compressor will resume running according to capacity requirements.

If 6 successive times ofoverload protection happens,the compressor won't resume running except pressing ON/OFFbutton.

In running process,if the comprssor has runfor 7 min,the times of overload protection will be cleared. 

1.Overload protection

If total current is detected over the stated value, the unit will be stopped as the indoor room temperature 

meet the preset 

value,after the compressor has stopped  for 3 minutes, it will resume its original operating status automatically. 

If 6 successive times ofoverload protection happens,the compressor won't resume running except pressing ON/OFFbutton.

In running process,if the comprssor has runfor 7 min,the times of overload protection will be cleared. 
2.Current dropped frequency or limited frequency control:

 The controller will drop the compressor frequency or prohibit the compressor frequency rising according to the change of total current. 

3.4 Current Protection Function

3.5 Communication Malfunction

There is communication malfunction if it can not receiving correct signal for 3 minutes continuously, in which case, the outdoor

unit will stop.

3.6  Module Protection

When module is in protection, the compressor will be stopped as the indoor room temperature meet the preset value, after the 

compressor has stopped  for 3 minutes, it will resume  its original operating status automatically.

If 6 successive times ofoverload protection happens,the compressor won't resume running except pressing ON/OFFbutton.

In running process,if the comprssor has runfor 7 min,the times of overload protection will be cleared. 

3.7   Overheat Protection of Module

If it is detected the IPM  temperature is too high, the compressor will run in limited  or dropped frequency.If  the IPM temperature goes on 

 rising over the stated value,  the compressor will stop .When the IPM temperature resumes normal,  and  the compressor has stopped 

If 3 successive times of   IPM protection in an hourhappens,the compressor won't resume running except pressing ON/OFFbutton.

for 3 min., the complete unit will resume running.

3.8 OverloadProtection for compressor

If compressor oveload is detected,the indoor unit will stop as the indoor room temperature meet the preset value.If the 

compressor has stopped for 3 min. ,it should  be reset to start.

2.4.3 Defrosting Process

If it is detected the defoeting is required,and if the compressor running frequency is a little higher,the frequency will first 
reduced to some level and then the compressor and indoor fan stop,50s later,outdoor fan stops meanwhile,4-way valve

stops after 45-second delay.The compressor will restart with 90Hz of running frequency in 55s  to defrost.Upon defrsoting 
is completed,compressor running frequency will decrease to 60Hz, and 4-way valve and outdoor fan will start,10s later, 
compressor will run with increased frequency required by capacity.Indoor fan will run in 2 min at most.

If compressor is stopped for malfunction in heating mode,the indoor fan will run by blowing exhaust heat.

3 Current Protection Function in Cooling/Heating/Dehumidifying/Auto Mode

3.9 9 PFC Protection

If start the unit in cooling,heating and dehumidifying mode,the compressor will operate in the frequency of 30Hz,and then  

PFC occurs after 30s.

At any time of stopping compressor,PFC will stop with the compressor at the same time.

Once PFC  starts,protection signal will be detected soon.During PFC protection,PFC stops with the compressor at the 

same time.

PFC will resume operation automatically after 3min when malfunction happens to it.

Содержание GAN GAG A180IV

Страница 1: ...Service Manual MODEL GAN GAG A180IV GAN GAG A220IV...

Страница 2: ...el dB A H M L Dimension W H D mm Dimension of Package L W H mm Net Weight Gross Weight kg 900 800 675 Total Capacity W Low High Standard 850 750 650 787X400X25 4 58 53 50 1020X319X234 1078X325X390 MP2...

Страница 3: ...ght kg Refrigerant Charge kg Outdoor unit Overload Protector Throttling Method Starting Method Sound Pressure Level dB A H M L Dimension W H D mm Model of Outdoor Unit Connec tion Pipe Length m Gas ad...

Страница 4: ...ndow 5 Wall Pipe 6 Wrapping Tape 7 Drainage hose Connection pipe Air inlet Air Outlet Air inlet Air Outlet and connection wire Wireless remote control Heat This indicator is black for single Cooling c...

Страница 5: ...Overall and Installing Dimension of Indoor Unit Air inlet grill Left Tube exit hole Top View Right Tube exit hole Unit mm Rear View Rear panel...

Страница 6: ...Overall and Installing Dimension of Indoor Unit 18K Unit mm above above above above Bolt Nut Wrench...

Страница 7: ...Overall and Installing Dimension of Indoor Unit 24K Unit mm Bolt Nut Wrench...

Страница 8: ...Electrical Diagram GAN GAG A180IV Electrical Diagram GAN GAG A220IV...

Страница 9: ...nd is given the mian unit will run under the command In this mode the system selects COOL HEAT and FAN mode automatically according to the change of ambient temperature Protection function is the same...

Страница 10: ...er 1 after 2 hours Preset temperature will decrease by 2 in total within 2 hours After that the unit will run at this preset temperature the indoor fan will run at preset speed No sleep function under...

Страница 11: ...top the unit or switch into other modes in heating mode the 4 way valve will de energize after the compressor has stopped for 2min In this mode the Temp setting range should be 16 30 1 4 2 Defrosting...

Страница 12: ...t setting temp after compressor has stopped 3mins later it will resume to running status if continuously 6 times module protection the compressor cannot resume to run It is need to press ON OFF can re...

Страница 13: ...H RPSUHVVRU QRUPDOO UXQV 2YHU YROWDJH 30 RYHUKHDW SURWHFWLRQ DFN YROWDJH HPDJQHWL DWLRQ SURWHFWLRQ RQWLQXRXVO WLPHV VWDUWXS IDLOXUH 0HDQLQJ RI OLJKWV EOLQNV IRU GULYH ERDUG LU H KDXVW SURWHFWLRQ OLPLW...

Страница 14: ...n at low speed invariably Swing will operate according to setting status Press the MODE button on the remote controller to select and display the following modes AUTO COOL DRY FAN HEAT AUTO 3 2 MODE S...

Страница 15: ...urn to air outlet D1 and then return standby to L1 If the unit is in swing condition the guide louver will swing between L1 and D1 for cooling and between L and D2 for heating After the unit is off gu...

Страница 16: ...Logic of Outdoor Fan If Tout amb 26 outdoor fan will run at high speed If Tout amb 24 outdoor fan will run at low speed In running if 24 Tout amb 26 the outdoor fan will remain original After turning...

Страница 17: ...compressor will be stopped as the indoor room temperature meet the preset value after the compressor has stopped for 3 minutes it will resume its original operating status automatically If 6 successi...

Страница 18: ...WXUQ 1RPLQDO UHIULJHUDWLQJ KHDWLQJ EOLQNV 0D UHIULJHUDWLQJ KHDWLQJ EOLQNV 0HGLXP UHIULJHUDWLQJ KHDWLQJ EOLQNV 0LQ UHIULJHUDWLQJ KHDWLQJ EOLQNV 6WRS EOLQNV RZ SUHVVXUH XQUHVWRUDEOH HILQLWLRQ HILQLWLRQ...

Страница 19: ...r Air guide louver Filter Screw Electric box top cover Front panel Wire terminal Open the front panel Firstly to screw off the screws that fixed at the guard plate on the receiving window both sides d...

Страница 20: ...r tray and then loosen the slipknot in the other end Pull out the terminal of stepping motor and then pull upwards the water tray to take it out Slipknot Water tray Terminal Operation procedures pictu...

Страница 21: ...s Motor Cross flow fan Disassemble Evaporator Use a screwdriver to loosen the screw 1pc of left side 2pcs of right side Take out the evaporator with your hands so that the side plate clamp of evaporat...

Страница 22: ...p can take off the top cover Disassemble the handle Handle Screw Screw off one screw which fix the handle then adown to push the handle then can take off the handle Disassemble the rear side plate sub...

Страница 23: ...hen can take off the cabinet Screw off the screw which fix the front case then pull it upwards can take off the front case Disassemble the electric box sub assy Screw off 2pcs screw which fix the elec...

Страница 24: ...der the soldering point connecting the liquid valve and the fork type pipe and remove the liquid valve Liquid Valve Gas Valve Screws Disassemble Outdoor Motor Screw off the four tapping screws fixing...

Страница 25: ...Soldered dots Nut with washer Operating Procedures Photos Disassemble 4 Way Valve Screw off the holding nut of the 4 way valve coil and remove the coil Use wet cotton cloth to wrap the 4 way valve un...

Страница 26: ...ront Side Plate Fig Disassemble Top Cover Unscrew the screws fixing the top cover and then lift the top cover to remove it As show in Fig 7 14 Screws Fig Disassemble Rear Grill Unscrew the screws fixi...

Страница 27: ...lectric box Disassemble the rear side plate Screw screw off 8pcs screw which fixed the rear side plate then can disassemble the rear side plate Screw off 4pcs screw which fix the electric box then can...

Страница 28: ...and electric box to remove it Disassemble Four way Valve the four way valve to take it out Welding process wet cotton and unsolder the 4 weld spots connecting and remove the coil Wrap the four way val...

Страница 29: ...remove the gas valve caution when unsoldering the soldering point wrap the gas valve completely with wet cloth so as to prevent the valve body from harmed by high temperature Unscrew the four bolts f...

Страница 30: ...8 Exploded View and Components and Parts List Exploded View of Indoor Unit...

Страница 31: ...nsformer 57X25C 43110237 1 19 Tube Sensor 20k 390000595 1 20 Sensor Insert 42020063 1 21 Upper Shield of Electric Box 01592038 1 22 Receiver Board 5H53EA 30545552 1 23 Electric Box 20112018 1 24 Filte...

Страница 32: ...Exploded View of Indoor Unit...

Страница 33: ...ansformer 57X25C 43110237 1 19 Tube Sensor 20k 390000595 1 20 Sensor Insert 42020063 1 21 Upper Shield of Electric Box 01592038 1 22 Receiver Board 5H53EA 30545552 1 23 Electric Box 20112018 1 24 Filt...

Страница 34: ...Exploded View of Outdoor Unit...

Страница 35: ...1 B C 2 R Q 1 4 2 C a p a cito r C B B 6 1 3 u F 4 5 0 V 1 4 3 E le ctric B o x C o ve r 1 4 4 Va lve 1 2 1 4 5 Va lve 1 4 1 4 6 Va lve S u p p o rt 1 4 7 R u b b e r fo o t o f co m p re s s o r 3 4...

Страница 36: ...Exploded View of Outdoor Unit...

Страница 37: ...e Fittin g s 1 4 2 G a s Va lve S u b As s y 1 4 3 R e a r S id e P la te 1 4 4 C a b le C ro s s L o o p 1 4 5 C o m p re s s o r 1 4 6 U n d e rp a n As s y 1 4 7 Fro n t S id e P la te 1 4 8 E le c...

Страница 38: ......

Страница 39: ...oth thick pipe and thin pipe are insulated well The exposed part of the connector and copper pipe must be insulated as well Heat exchanger of outdoor unit is blocked Air filters are blocked Fan speed...

Страница 40: ...FRROLQJ RU KHDWLQJ RXWGRRU IDQ UXQV EXW FRPSUHVVRU GRHVQ W UXQ 0DOIXQFWLRQ RI FRPSUHVVRU 5HSODFH WKH FRPSUHVVRU 5H IDVWHQ WKH FRQQHFWLRQ KHFN LI LQSXW LV 9 I QRW UHSODFH WKH UHFWLILHU 5HSODFH WKH SRZH...

Страница 41: ...n connect screw 2 Stick absorbing clay between plates Louver of outdoor unit touched outer case Adjust location of louver Abnormal sound inside compressor Change compressor Abnormal solenoid sound fro...

Страница 42: ...H UHIHU WR WKH PDOIXQFWLRQ DQDO VLV LQ WKH SUHYLRXV VHFWLRQ IRU KDQGOLQJ PHWKRG 30 PRGXOH SURWHFWLRQ Processing method Once the module malfunction happens if it persists for a long time and can not be...

Страница 43: ...voltage of outdoor fan connector No voltage Normal voltage Replace the fan Replacethemainboard motor of outdoor unit Check if radiating paste is spread evenly or radiating sticker is stuck well if sc...

Отзывы: