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AC Pro A-Series, Installation Manual

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Step

Procedure

7.  Remove Electric Box Assy

1. Loosen the connection clasps between
shield cover of electric box sub-assy and
electric box, and then remove the shield
cover of electric box sub-assy.
Remove the screw fixing electric box assy.

2.
- Take off the water retaining sheet.
Remove the cold plasma generator by
screwing off the locking screw on the
generator.
- Take off the indoor tube temperature
sensor.
- Screw off 1 grounding screw.
- Remove the wiring terminals of motor and
stepping motor.
- Remove the electric box assy.

3. Twist off the screws that are locking
each lead wire and rotate the electric
box assy.
Twist off the screws that are locking the
wire clip. Loosen the power cord and
remove its wiring terminal. Lift up the
main board and take it off.

129

Installation and Maintenance

Service Manual

a

b

c

Procedure

Step

Loosen the connection clasps between 
shield cover of electric box sub-assy and 
electric box, and then remove the shield 
cover of electric box sub-assy.
Remove the screw fixing electric box assy .

①

 Take off the water retaining sheet. 

Remove the cold plasma generator by 
screwing off the locking screw on the 
generator.

②

 Take off the indoor tube temperature 

sensor.

③

 Screw off 1 grounding screw.

④

 Remove the wiring terminals of motor and 

stepping motor.

⑤

 Remove the electric box assy.

Twist off the screws that are locking
each lead wire and rotate the electric
box assy.
Twist off the screws that are locking the
wire clip. Loosen the power cord and
remove its wiring terminal. Lift up the
main board and take it off.

7. Remove electric box assy

Electric box

Electric box assy

Clasps

S

hield cover of electric 

box sub-assy

Cold plasma
generator

Water retaining
sheet

Grounding screw

Screw

Power cord

Wire clip

Screw

Main board

Screw

Indoor tube
temperature 
sensor

Wiring
terminal
of motor

Wiring
terminal
of stepping
motor

Screw

Summary of Contents for A-Series

Page 1: ...AC Pro A Series 9 12K 230V Installation Manual Models AWH09QB D3DNB8K I AWH9QB D3DNA5K O AWH12QC D3DNB8K I AWC12QC D3DNA5K O Refrigerant R410A ...

Page 2: ...connection become severed they MUST be repaired replaced by qualified technician 10 If the power cord or power connection wire is not long enough replace with specialized cable from manufacturer before proceeding with installation or repair DO NOT elongate these wires 11 An air switch MUST be installed if there is no plug found on the air conditioner The air switch MUST be all pole parting and the...

Page 3: ...y closed and power is disconnected before detaching the connection pipe If the compressor starts running while stop valve is open and connection pipe is not affixed air will be sucked in causing pressure to rise and potentially causing compressor rupture which may lead to severe injury or death 5 When installing the unit make sure the connection pipe is securely connected before the compressor sta...

Page 4: ...3 Impact drill drill head electric drill 4 Electroprobe 5 Universal meter 6 Torque wrench open end wrench inner hexagon spanner 7 Electronic leakage detector 8 Vacuum pump 9 Pressure meter 10 Pipe pliers pipe cutter 11 Pipe expander pipe bender 12 Soldering appliance refrigerant container ...

Page 5: ...he wall At least 8 At least 72 At least 6 At least 6 Space to the wall S p a c e t o t h e o b s t r u c t i o n r o o l f e h t o t e c a p S Space to the obstruction Drainage pipe Space to the wall Space to the obstruction Space to the obstructio Space to the obstruction At least 24 At least 12 At least 24 At least 12 At least 78 A t l e a s t 1 1 8 Space to the obstruction ...

Page 6: ...pes and hang the indoor unit Install the support of outdoor unit select it according to the actual situation Fix outdoor unit Make the bound pipes pass through the wall hole and then connect outdoor unit Install drainage joint of outdoor unit only for cooling and heating unit Connect pipes of outdoor unit Connect wires of outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check aft...

Page 7: ...ecaution Follow ALL electric safety requirements during installation Use qualified power supply circuit and air switch according to local safety regulations Power supply MUST match the requirement of the air conditioner Unstable power supply or incorrect wiring may result in electric shock fire hazard or malfunction Install proper power supply cables prior to using air conditioner Properly connect...

Page 8: ...ient of 5 10 As show in Fig 2 Note Note Hex nut diameter inch Tightening torque ft Ibf Φ1 4 11 10 14 75 Φ3 8 22 12 29 50 Φ1 2 33 19 40 56 Φ5 8 44 24 47 94 Φ3 4 51 32 55 31 Left Wall Φ2 3 16 2 3 4 Φ2 3 16 2 3 4 Right Mark in the middle of it Level meter Rear piping hole Wall Space to the wall above 6inch Space to the wall above 6inch Rear piping hole 56 Installation and Maintenance Outlet pipe Drai...

Page 9: ...nd Maintenance Service Manual connection wire sleeve 4 Put wiring cover back and then tighten the screw 5 Close the panel Indoor unit Gas pipe Indoor and outdoor power cord Liquid pipe Drain hose Band Drain hose Band Connection pipe Indoor power cord 1 All wires of indoor unit and outdoor unit should be connected by a professional 2 If the length of power connection wire is insufficient please con...

Page 10: ...utdoor unit 2 Make sure the support can withstand at least four times the unit weight 3 The outdoor unit should be installed at least 1 3 16 inch above the floor in order to install drain joint As show in Fig 18 4 For the unit with cooling capacity of 2300W 5000W 6 expansion screws are needed for the unit with cooling capacity of 6000W 8000W 8 expansion screws are needed for the unit with cooling ...

Page 11: ...frigerant Charging vent Vacuum pump Piezometer Valve cap Lo Hi Inner hexagon spanner Open Close The drain hose can t be fluctuant The drain hose can t be fluctuant The water outlet can t be fluctuant The water outlet can t be placed in water 1 Use Vacuum Pump 1 Remove the valve caps on the liquid valve and gas valve and the nut of refrigerant charging vent 2 Connect the charging hose of piezometer...

Page 12: ... Description 1 Swing function 2 Air exchange function this function is yet unavailable for this unit 3 Sleep function Only sleep 1 4 Each kind of running mode of indoor unit auto mode 5 Cooling mode 6 Dry mode 7 Fan mode 8 Heating mode 9 Defrosting function for the outdoor unit 10 Gate control function this function is yet unavailable for this unit Installation and Maintenance Wired Controller pro...

Page 13: ...overy will resume the original setting state If not the indoor unit is defaulted to be off after power recovery Memory off is default before delivery 3 6 Fan By pressing them at the same time under off state of the unit will be displayed on the wired controller for the cooling only unit while will be displayed on the wired controller for the cooling and heating unit 2 6 Upon startup of the unit wi...

Page 14: ...ntinuously will increase the temperature by 1 C 1 F every 0 5s as shown in Fig 3 3 1 In Cooling Dry Fan or Heating mode the temperature setting range is 16 30 C 61 86 F In Auto mode the setting temperature is not adjustable 3 4 Fan Setting While ON press Fan and then fan speed and the indoor unit fan mode change circularly as shown in Fig 3 4 1 3 5 Timer Setting While ON PressTimer button to set t...

Page 15: ...is set press timer button to display LCD and confirm Turn on the unit without Timer activated PressTimer repeatedly to get to the setting status Press to adjust the time PressTimer to cancel this setting Press Enter Cancel to confirm this setting Fig 3 5 1 TimerOFF Setting Figure 3 5 2 TimerON setting while unit is OFF Turn on the unit without Timer activated PressTimer repeatedly to get to the se...

Page 16: ... swing operation Fig 3 6 1 Swing Setting Notes SLEEP TURBO and FAN settings are the same as the SWING setting 3 7 Sleep Setting Under COOL HEAT or DRY Mode press this button to start the SLEEP function Press ENTER CANCEL to confirm setting In COOL or DRY modes the system will increase temperature by 1 2ºF each hour after SLEEP mode is enabled In HEAT mode the system will decrease temperature by 1 ...

Page 17: ...OL or HEAT mode pressing the function button will speed up cooling or heating Press the button again to exit turbo function and the icon will disappear Turbo feature is not available in AUTO DRY or FAN mode s Turbo function is shown below Turn off the unit without Turbo function activated Press Enter Cancel to cancel this setting Press Function repeatedly to get to theTurbo function again Press En...

Page 18: ...s function Blow function setting is as shown in Fig 3 10 1 Turn off the unit without E heater function activated Turn off the unit without Blow function activated Press Function repeatedly unitll go to the E heater setting status Press Function repeatedly unitll go to the Blow setting status Press Enter Cancel to cancel this setting Press Enter Cancel to cancel this setting Press Function repeated...

Page 19: ...rature set fan speed and Lock function t the Wired Controller trol box of the indoor unit ntroller through the rubber ring ed control to the 4 pin socket of the indoor unit PCB ween the main board and the wired controller can be up to 20 meters the standard distance is 8 er 1 e 3 4 5 2 Fig 4 1 Accessories for the Installation of the Wired Controller 2 3 4 5 d Soleplate of the Wired Controller Scre...

Page 20: ... line into slot of the wired controller Snap the front panel and the soleplate of the wired controller together Fix the front panel and the soleplate of the wired controller tightly by screws ST2 9XS CAUTION Pay special attention to the following notes in order to avoid malfunction of the air conditioner due to electromagnetic interference 1 Separate the signal and communication lines of the wired...

Page 21: ...se turn off the unit and contact the professionally skilled personnel Fig 5 1 5 0 Errors Display If an error occurs during the operation of the system the error code will be displayed on the LCD screen If multiple errors present at the same time their codes will be displayed circularly Fig 5 1 If multi errors occur at the same time their codes will be displayed circularly Note In the event of any ...

Page 22: ...p frequency F6 6 3 Over current limit drop frequency F8 8 1 High exhaust temperature limit drop frequency F9 9 2 Refrigerant leakage protection F0 10 9 Anti freezing limit drop frequency FH 2 2 4 Defrosting H1 1 2 Compressor overload protection H3 3 8 IPM protection H5 5 4 Module temperature is too high H5 5 10 PFC protection HC 6 14 Loading EEPROM malfunction EE 15 11 High PN voltage protection P...

Page 23: ...sis process Start End Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted Is there a short circuit due to trip over of the parts Replace the mainboard with the same model NO NO YES YES NO NO YES NO YES YES Place parts upright Replace it with a temperature sensor of the same model Securely insert the temperature sensor Has malfunction been eliminate...

Page 24: ...is foot to neutral wire on the mainboard 53 enance s the control terminal of PG motor connected tightly s the feedback interface of PG motor connected tightly otor can t operate is broken circuit of the mainboard is defined abnormal diagnosis process Start While power is off stir the blade with a tool to see whether the blade rotates smoothly Check if the connection of PG motor feedback terminal i...

Page 25: ...en 3 Malfunction of Protection of Jumper Cap C5 Main detection points Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly The jumper is broken The motor is broken Detection circuit of the mainboard is defined abnormal Malfunction diagnosis process Start Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper cap wit...

Page 26: ...otor U8 Main detection points Instant energization after de energization while the capacitor discharges slowly Is the zero cross detection circuit of the mainboard defined abnormal Malfunction diagnosis process End Turn power off for 1 minute the turn back on U8 is still displayed The zero cross detection circuit of the mainboard is defined abnormal Replace the mainboard with the same model Start ...

Page 27: ...aintenance Service Manual Start Is malfunction eliminated The end check if the connection wire are correctly connected Replace the detecting plate with the same model Replace the mainboard with the same model Yes Yes No 5 Malfunction of detecting plate WIFI JF ...

Page 28: ...Remove blockage in the system System is blocked inside dirt block ice block oil block Y valve no fully open Compressor doesn t work normally Strange noise or leakage occurs Make compressor run normally Casing is too hot Replace a main board with the same model Malfunction is eliminated Malfunction is eliminated Malfunction is eliminated Malfunction is eliminated Troubleshooting for F0 malfunction ...

Page 29: ...s process N Y N Y N Y N Y N Y Turn on the unit and wait 1 minute Use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor Voltage higher than 200V Fault with the voltage testing circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminalL andN on wiring board XT power supply Voltage within 210VAC 250VAC Shut down the power and repair ...

Page 30: ...correct order Is the voltage input of the machine within normal range Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT Is the compressor coil resistance normal Is the insulation of compressor coil against the copper tube in good condition Is the working load of the machine too high Is the radiation good Is the charge volume of refrigerant correct Fault diagno...

Page 31: ...oltage between the two ends of capacitor C2 until the voltage is lower than 20V Replace the capacitor C2 Then energize and start the unit Replace the control panel AP1 Take corrective actions according to Technical Service Manual and then energize and start the unit If there is any abnormality described above Replace the control panel AP1 If the connection between AP1 and COMP is unsecure or the c...

Page 32: ...ent temperature higher than 53 20 minutes after the complete unit is powered off Is heat dissipation of the indoor unit and outdoor unit abnormal Does the outdoor fan work normally Replace the control panel AP1 End Normal protection please operate after the outdoor ambient temperature is normalized Improve the heat dissipation environment of the unit 1 Check if the fan terminal OFAN is connected c...

Page 33: ...nough Fault diagnosis process Power on the unit Is stop time of the compressor longer than 3 minutes Does startup fail Are the wires for the compressor connected correctly Is connection sequence right Replace the control panel AP1 Is the fault is eliminated Replace the compressor End YES YES YES NO Restart it up after 3 minutes Connect the wires as per the connection diagram NO NO NO ...

Page 34: ...ected correctly Is connection sequence right Is the connection made in clockwise direction Is fault is eliminated Replace the control panel AP1 Replace the compressor End YES YES Connect the wires correctly NO Out of step occurs in operation NO Is the outdoor fan working normally Is the outdoor unit blocked by foreign objects Is fault is eliminated Replace the control panel AP1 Replace the compres...

Page 35: ...omplete unit is powered off NO Is the terminal FA for the electronic expansion valve connected correctly Resistances between the first four pins close to the terminal hole and the fifth pin are almost the same less than 100 ohm Is fault is eliminated Replace the electronic expansion valve Replace the control panel AP1 End YES Is fault is eliminated Coolant leakage refilling the coolant NO Connect ...

Page 36: ...sistance around zero Remove the PFC capacitor and measure resistance between the two terminals Disconnect the terminals for the reactor and measure the resistance between the two terminals of the reactor by an ohm gauge End NO Replace it as per the wiring diagram and reconnect the wires Is fault eliminated YES Is there damage or short circuit Replace the control panel AP1 NO NO The capacitor is sh...

Page 37: ... Check wiring inside of the indoor and outdoor units Are wires broken Check the communication circuit of the outdoor unit The communication circuit is abnormal Replace the main board of the indoor unit The AP1 voltage detection circuit is at fault If the fault is eliminated Replace the main board of the outdoor unit Correctly connect the corresponding wires for the indoor and outdoor units with re...

Page 38: ...it is improper Check whether the installation postion is proper according to installation requirement for air conditioner Adjust the installation position and install the rainproofing and sunproofing for outdoor unit Refrigerant is leaking Discharged air temperature during cooling is higher than normal discharged wind temperature Discharged air temperature during heating is lower than normal disch...

Page 39: ...pressor Cylinder of compressor is blocked Compressor canot operate Repair or replace compressor 6 Air Conditioner is Leaking Possible Causes Discriminating Method Air conditioner Status Troubleshooting Drain pipe is blocked Water leaking from indoor unit Eliminate the foreign objects inside the drain pipe Drain pipe is broken Water leaking from drain pipe Replace drain pipe Wrapping is not tight W...

Page 40: ...omponent picture is only for reference please refer to the actual product 90 Installation and Maintenanc Service Manual 10 Exploded View and Parts List 10 1 Indoor Unit The component picture is only for reference please refer to the actual product ...

Page 41: ...rator Assy 0100297601 0100200004407 1 15 Wall Mounting Frame 01252484 01252043 1 16 Cross Flow Fan 10352056 10352059 1 17 Fan Motor 1501214604 1501208905 1 18 Connecting pipe clamp 2611216401 2611216401 1 19 Rubber Plug WaterTray 76712012 76712012 1 20 Stepping Motor 1521210710 1521212901 1 21 Crank 73012005 73012005 1 22 Electric Box Assy 10000204740 10000203822 1 23 Axile Bush 10542036 10542036 ...

Page 42: ...Outdoor Unit 125 Installation and Maintenance Service Manual GWH12QC D3DNA5K O LCLH GWH09QB D3DNA5K O The component picture is only for reference please refer to the actual product ...

Page 43: ... Assy 013030713 013030713 1 15 Cable Cross Plate 2 02123014P 02123014P 1 16 Magnet Coil 4300040050 4300040050 1 17 Electric Expansion Valve Sub Assy 030026000192 030026000197 1 18 Rear Grill 01473009 01473009 1 19 Electric Box 20113034 20113032 1 20 Main Board 300027000359 300027000355 1 21 Reactor 43130184 43130184 1 22 Electric Box Assy 100002001959 100002001956 1 23 Terminal Board 42010313 4201...

Page 44: ...ove 91 Installation and Maintenance 11 1 Removal Procedure of Indoor Unit after turning off all power supplies and discharge the refrigerant completely before removal a b Axile bush Push out the axile bush on horizontal louver Bend the horizontal louver with hand and then separate the horizontal louver from the crankshaft of step motor to remove it Horizontal louver Location of step motor Procedur...

Page 45: ...Procedure Step Remove the screws fixing front case Note 1 Open the screw caps before removing the screws around the air outlet 2 The quantity of screws fixing the front case sub assy is different for different models Loosen the connection clasps between vertical louver and bottom case to remove vertical louver Loosen the connection clasps between front case sub assy and bottom case Lift up the fro...

Page 46: ...Step Loosen the connection clasps between shield cover of electric box sub assy and electric box and then remove the shield cover of electric box sub assy Remove the screw fixing electric box assy Take off the water retaining sheet Remove the cold plasma generator by screwing off the locking screw on the generator Take off the indoor tube temperature sensor Screw off 1 grounding screw Remove the w...

Page 47: ...old the connector and then pull the terminal circlip soft sheath holder connector Procedure Step Remove 3 screws fixing evaporator assy 8 Remove evaporator assy Screws Connection pipe clamp Evaporator assy Evaporator assy Screw Groove Bottom case Clasp Connection pipe At the back of the unit remove the screw fixing connection pipe clamp and then remove the connection pipe clamp Adjust the position...

Page 48: ...ing step motor then remove step motor Service Manual Procedure Steps Remove the screws fixing motor clamp and then remove the motor clamp Remove the screws at the connection place of cross flow blade and motor lift the motor and cross flow blade upwards to remove them Remove the bearing holder sub assy Remove the screw fixing step motor and then remove the step motor Screws Screw Motor clamp 10 Re...

Page 49: ...crew fixing cable cross plate 2 and then remove the Cable cross plate 2 Remove 1 connection screw fixing valve cover and then remove the valve cover Remove 3 connection screws among top cover plate front panel and right side plate Then remove top cover plate screw Cable cross plate 2 Valve Cover screw top cover plate NOTE Take GWH12QC D3DNA6E O for example 132 Installation and Maintenance 11 2 Rem...

Page 50: ...ght side plate Grille Panel Axial flow blade Right side plate 133 Installation and Maintenance Service Manual 3 Remove grille and front panel 4 Remove axial flow blade 5 Remove right side plate Remove connection screws between the front grille and the front panel Then remove the front grille Remove connection screws connecting the front panel with the chassis and the motor support and then remove ...

Page 51: ...Capillary Sub assy Electron expansion valve 134 Installation and Maintenance Service Manual Remove the 2 screws fixing the cover of elec tric box Lift to remove the cover Loosen the wire and disconnect the terminal Lift to re move the electric box assy 6 Remove electric box assy Electric box assy Unscrew the fastening nut of the 4 way Valve Assy coil and remove the coil Wrap the 4 way Valve Assy w...

Page 52: ...xing the motor support Lift motor support to re move it 9 Remove motor and motor support Motor Motor support 10 Remove clapboard sub assy Loosen the screws of the Clapboard Sub Assy The Clapboard Sub Assy has a hook on the lower side Lift and pull the Clapboard Sub Assy to remove Clapboard Sub Assy Service Manual Remove the 4 tapping screws fixing the motor Pull out the lead out wire and remove th...

Page 53: ...uid valve B Remove the 3 footing screws of the compressor and remove the compressor Service Manual 11 Remove Compressor a Remove the 2 screws fixing the gas valve Unsolder the welding spot connecting gas valve and air return pipe and remove the gas valve Note it is necessary to warp the gas valve when unsoldering the welding spot Remove the 2 screws fixing liquid valve Unsolder the weld ing spot c...

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