Split air condition conditioner er Wall mounted Type Service manual BKAP 070/BKAP 071 BKAP 090/BKAP 091 BKAP 120/BKAP 121 BKAP 125/BKAP 126
CONTENTS Contents
1
Performance parameters
2
Safety precautions precau tions
3
Installation
3
Block diagram
12
Trouble shooting shooti ng
13
Fault Faul t diagnosi diag nosis s by symptom sympt om
14
Control specificat ion
18
To disassemble mechanical parts
22
Exploded views and parts list
26
Wiring diagrams
36
1
PERF PE RFOR ORMA MANC NCE E PARA PA RAME METE TERS RS Model Power Standard cooling capacity(W)
AUS-07C53R010Lx
BKAP 070/BKAP 071
2050
2050 2150
2700
630 595 2.8
830
Standard input power(W)
Cool Heat pump
630
Standard input current(A)
Cool Heat pump
2.8
2700 2850 830 790
3.7
3.7 3.4
430 1.0
430 1.0
2.66
3
Air flow volume(m /h) Dehumidifying capacity (L/h) Waterproof class
400 0.8
400 0.8
IP20(INDOOR) IP24(OUTD OOR) I T1
Protection class Climate type Refrigerant(R407C)charge amount(g) Indoor Noise(dB(A)) Outdoor Indoor Net weight(kg) Outdoor Indoor Dimension WxHxD (mmxmmxmm) Outdoor
700 34 49 10 26
700 39 50 10 25
780 39 50 10 26
290x800x196 500x665x295
290x800x196 500x665x295
290x800x196 500x665x295
670 34 49 10 25 290x800x196 500x665x295 AUS-12C53R130Lx(a)
BKAP 125/BKAP 126
AUS-12C53R130Lx(a2) BKAP 120/BKAP 121
220-240V~, 50Hz 3250
3250 3800
3250
3200 3400
1220 1300 5.4
1220
1050 1150 4.7
Standard heating capacity(W)
Standard input power(W)
Cool Heat pump
1220
Standard input current(A)
Cool Heat pump
5.4
3
Air flow volume(m /h) Dehumidifying capacity (L/h) Waterproof class
Refrigerant(R407C)charge amount(g) Indoor Noise(dB(A)) Outdoor Indoor Net weight(kg) Outdoor Indoor Dimension WxHxD (mmxmmxmm) Outdoor
5.4
5.75
5.2
450 1.2
450 1.2
450 1.2 IP20(INDOOR) IP24(OUTD OOR) I T1
450 1.2
900 40 52 10 31
950
1080
1080
40 51 10 33
40 51 10 33
290x800x196 552x835x310
290x800x196 552x835x310
40 51 10 31 290x800x196 552x835x310
Protection class Climate type
Noti Noti ce
BKAP 090/BKAP 091
220-240V~, 50Hz
Standard heating capacity(W)
Model Power Standard cooling capacity(W)
AUS-09C53R010Lx(b)
290x800x196 552x835x310
1.The i ndicate d noise pa ramete r is measur ed in labor atorie s befor e leaving f actory. actory. 2.The rated cooling/heating capacity is tested under the following conditions:
Cooling operation
Indoor
27
(DB)
19
(WB)
Outdoor
35
(DB)
24
(WB)
Heating operation
Indoor
20
(DB)
15
(WB)
Outdoor
7
(DB)
6
(WB)
3. Due to the policy of c onstan t develo pment, we r eserve the righ t to modify t echnica l data without n otice. Wh ile error s and omiss ions are a possi bility bility,, every re asonab le effort h as been made to en sure that in format ion in this manual is correct. 4.Operating temperature range:
Maximu Max imum m cooli cooling ng Min Minimu imum m cooli cooling ng Max Maximu imum m heati heating ng Min Minimu imum m heati heating ng Indoor side DB/WB( C ) Outdoor side DB/WB( C )
32/23 43/26
21/15 21/15
27/-24/18
20/--5/-6
5.Wiring diagram of air conditioner (indoor unit /outdoor unit) are attached to the indoor/ o utdoor unit respectivel y. 6.If the supply cord is damaged , it must be replaced by the manufacturer, its servic e agent or simila rly qualif ied persons in o rder to avoid a hazard.
2
SAFETY PRECAU TIONS The fo llowing safety preca utions must be taken when using your air conditioner. 1. Warni ng: Prior t o repair, repair, disc onnect t he power c ord. 2. Use p roper parts: us e only exact repl acement p arts. (Also, w e recommend replacing parts rath er than repairing them.) 3. Use the proper tools: use the proper tools and test equipment, and know how to use them. Using defective tools or test equip ment may cause probl ems later-in termittent contact, f or example. 4. Power cord: prior to repair, check the power cord and replace it if necessary. 5. Avoid Avoid us ing an extension cord, an d avoid t apping i nto a power cord. This prac tice may resul t in malfunction or fire. 6. Afte r completin g repairs and reassembly , check t he insu lation resistanc e. Procedure: prior to applying power, measure the resi stance between the pow er cord and the ground terminal. The resistanc e must be greater than 30 megohms. 7. Make sure that the grounds are adeq uate. 8. Make sure that the installat ion conditio ns are satisfac tory. tory. Reloc ate the unit if necessary. necessary. 9. Keep children away fr om the unit wh ile it is bein g repaire d. 10. Be sure to clea n the unit an d its surroundin g area.
INSTALLATION Selectin g area for installat ion Select an area for installation that is suitable to the customer’s needs.
1 Location of indoor unit Keep the air inlet and outlet at a far distance from the blockage. Keep the height distance between the indoor and outdoor unit at most 5m. Mount on the wall solid enough to bear the weight of the unit and not cause any shake. shake. Avoid direct sunshine. A place easy for condensate drain and easy for connecting with the outdoor unit. Keep a far distance away from the fluorescent lamp, it may influence the operation of remote controller. Keep at least 1m away from the TV radio and other home appliances.
2 Location of outdoor unit A place solid enough to bear the weight of the unit and not cause any shake. Good ventilation, less dust, far from direct rain and sunshine. A place where the air discharged out of the outdoor unit or the operation noise will not annoy your neighbours. No blockage near the outdoor unit. Avoid places close to inflammable i nflammable gas leakage.
Caution: It is harmful to the air conditioner if it is used in the following environments: greasy areas (including area near machines). Salty area such as coastal areas, areas where sulfuric gas is present such as hot spring areas. Contact your dealer for advice.
3
INSTALLATION Installat ion dia gram of indo or unit an d outdoor unit Confirm the installation position by the mark of the indoor mounting plate.
or a b bo v o e v 10 e 5m 5 m m
ab o ov e v 15 e 5m 5 m m m m m 0 5 2 e v o b a
or
or
The copper pipe can be led from back, right, right, underside, underside, or left-back side. m m 0 2 e v o b A
back right
Notice: do not elevate the drain hose.
front
left back Underside Left-back
While installing the pipeline on the thin armor plate or on the wall of metal mesh, you should use the wooden board to clamp between the wall and the pipeline, or wrap up the pipeline with 7-8 layers of insulating plastic tape.
m m 0 0 5 e v o b a
a b bo v o e v e 3 0 00 m 0 m m
m 0 m m 3 0 m e v 0 o 0 b 1 a
m m 5 0 0 e v a b o
a b o v e e 5 0 0 m mm
4
Cover connecting pipe with adiabatic material.
Sponge plastic adiabatic material with the thickness of 8mm.
INSTALLATION 1 Securing the mounting plate and drill on the wall Secure the mounting plate The mounting plate should be attached to the structural part of wall (post etc). Fasten string at the central hole
fasten string at the central hole
255 0 m m a t t l lee a s t t 2
255 0 m m a t t l lee a s t t 2 2 4 m m a t t l lee a s t t 2
m o r ree 155 m m o r r m a l l l w e de d i s o m f r r o
mounting plate
re m o re 055 m m o r r m 1 0 de w a l l l o m s i de f r r o
Tapping screw ST4 25(5)
m o r ree o r r m m o 455 m m 45 de w a ll s i de m s o m f r r o
m o r ree o r r m m o 055 m m 1 0 de w a l l l s i de m s o m f r r o
plumb
Tapping screw ST44 25 ST 25(5 (5))
plumb
mounting plate
The holes at solid arrow position must be secured to avoid the shake of mounting plate. When Whe n the exp expans ansion ion bol bolts ts are use used, d, two ho holes les ( 11 20 or 11 26 ) tha thatt the dis distan tance ce between them is 450mm should be adopted.
NOTICE:
Drill on the wall 40mm
fasten string at the central hole 105mm
45mm Center of hole(
plumb
NOTICE:
65mm)
Center of hole(
Confirm the position of holes, and drill holes on the wall. fasten string at the central hole
fasten string at the central hole
at least 250mm
440mm at least 140mm
at least 180mm
m m 0 4
Center of hole(
65mm)
65mm)
plumb
120mm
440mm
at least 120mm
Pipe hole Center of hole(
90mm
at least 120mm
plumb
65mm)
NOTICE: The holes at solid arrow position must be secured to avoid the shake of mounting plate. When the exp When expans ansion ion bol bolts ts are use used, d, two hol holes es ( 11 20 or 11 26 ) tha thatt the dis distan tance ce between them is 450mm should be adopted. Confirm the position of holes, and drill holes on the wall.
5
at least250mm
m m 0 3 2
90mm Pipe hole
INSTALLATION 2 Wiring Open the front grille; Remove the screw from electrical box cover, pull the Screw electrical box cover away from the unit and set aside. Remove the screw from fastener, pull the fastener away from the unit and set aside. Connect the cable. Indoor unit terminal Replace the fastener and electrical box cover.
Diagram
Connecting cable
NOTE: The appliance shall be installed in accordance with national wiring regulations. The appliance must not be installed in the laundry. The appliance must be installed 2.3m above the floor. The appliance must be positioned so that the plug is accessible. For some models whose coo ling capac ity are above 4600W (17000BTU/h) , an all-pol e disconnec tion device wh ich has at least 3mm separation distance i n all pol e and a re sidual c urrent device(RCD )with t he rati ng of above 10mA shall be incorpo rated in the fixed wiring according to the national r ule.
3 Installation of the drain hose Liquid pipe
NOTE: The drain hose must be arranged beneath the copper pipe. The drain hose must not be hunched or twisted. While wrapping up the drain hose, do not pull it. The drain hose through the room must be wrapped up by the thermal insulation materials. The copper pipe and the drain hose must be wrapped up by felt strip. Adiabatic pad should be used at where the pipe contacts contacts the wall.
gaspipe gas pipe
Drain hose Adiabatic underlay felt
ROUTE OF PIPE If pipe comes out of the right side of the indoor unit, cut part 1 of the unit; If pipe comes out of the lower-right side of the indoor unit, cut part 2 of the unit; If pipe comes comes out out of the left side of the indoor indoor unit, cut cut part part 3 of the unit.
1
3
2
REFIT OF DRAIN HOSE If pipe comes out of the left side of the indoor unit, the drain hose must be refitted, otherwise water leakage may occur. Refit methods: Interchange the position position of drain hose and drain rubber plug. Clearance is not allowed after refit, it would lead to water leakage.
6
drain hose
Drain rubber plug
INSTALLATION Arrangement of the drain hose To drain the condensate water easily, easily, the drain hose should be declined downwards. The following 5 arrangement methods are incorrect. Decline downward
Decline downward
Dip hose into water
Standing water air
Water leak (Fig. 1)
Water leak (Fig. 2)
50mm or less above floor
Water leak (Fig. 5)
(Fig. 4)
(Fig. 3)
Drain hose
If you find the drain hose not long enough to connect with the indoor unit, you can extend extend it with the hoses in the accessory box. The drain hose through the room must be wrapped up with the special adiabatic material.
4 Installation of the indoor unit
Hose(ID 15cm) PVC hard Indoor unit
Let pipe go through the wall hole and attach the indoor unit to the mounting plate.(Press the rib of indoor unit inside the hook of the mounting plate.)
the mounting plate Bottom
the rib of indoor unit
5 Pipe Connection The number of bent position of the pipe in the indoor unit should not exceed 10. The number of bent position of the pipe in the indoor unit and the outdoor unit should not exceed 15. The radius of bent position should be more than 10cm. Please break the evaporator craft tube with pincers before connecting. After exhausting the inside air, use the wrench to twist down the nut of connecting tube of the the evaporator. Put some seal oil to cover the joint and the flare. Align the centre of joint in line with that of flare and tighten the nut of connecting pipe with wrench. Attention: Do not exhaust the inside air just by loosing the nut since there is the air of certain pressure inside the tube of indoor unit. Please do not make extra effort for fear of damaging the flare. DIAMETER OF PIPE 6.35mm ( 1/4 ) 9.52mm ( 3/8 ) 12.7mm ( 1/2
)
15.88mm ( 5/8
)
TORQUE(N m) 13.7---17.6
Evaporator craft tube
34.3---41.2 49.0---56.4 73.0---78.0
6 Wall sealing and Pipe fastening Use putty to seal the wall hole. Use clamp (pipe fastener) to secure the pipe at specified position. get rid of unwanted part clamp
seal with putty
secure the connecting pipe with clamp
Indoor unit
screw
7
INSTALLATION Installa tion diag ram of indoor unit and outdoor u nit 1
Wiring Outdoor unit terminal
Outdoor unit terminal
Connecting cable
Connecting cable
or
Wiring For Above Above 6000W Model (Above 21000BTU/h Model) 1 Remove the self-tappi ng screws (2 pcs) on the maintenanc e board an d take out the maintenance board.
The ca ble wire c an be led f rom th e back hole of the piping hole or ejecting hole. Please uti lize outdoor pipe support whe n the cab le wire is led from the back side.
Terminal board Fix the cable wire with anchor cable
Maintenance board Piping cover 2 Loosen the self-tapp ing screws (2 pcs) on the fixing clip to loosen the fixing clip. 3 Loosen the fixing screw of the wire terminal board, pass the power wire and signal wire through the fixing clip. Then firmly fix the power w ire and signal wire on the ter minal board with the fixing screw. (Earth wire must be c onnected firmly.)
Outdoor pipe support (Outdoor pip e support is not requir ed when leadi ng the cable wir e from other plac es).
4 Tig hten the s elf-tappin g scre w on the fixing clip. 5 Instal l the maintenanc e board. After the pipes and cabl e wire are insta lled, pl ease seal the sponge block a s per drawing indi cation.
Maintenance board
Back wiring
Piping cover
Right wiring Piping cover Ejecting hole
Sponge
8
INSTALLATION Notice: 2
If the sign al wir e has to be boug ht separ ately , choos e elec tric w ire above 0 .75mm. If the in terc onnec tion cord f or powe r suppl y has to be repl aced, p leas e see the following table for reference.
SPECS (Interconne (Interconnection ction cord)
MODEL
1.0mm
2700W(10000BTU/h) 3000W(11000BTU/h) -4000W(15000BTU/h)
1.5mm
4500W(18000BTU/h) -8000W(28000BTU/h)
2.5mm
2 2 2
WARNING: Please take the electric circuit diagram attached to the indoor/outdoor units as major reference while installing. The power wire and signal wire between the indoor/outdoor units must be connected one by one as per corresponding number on the wiring terminal board. The connecting cables must be clipped together. Special cable must be used to connect indoor unit and and outdoor unit. It should be ensured that the terminals are not influenced by external external force. Poor connection may cause fire. The electric box cover must be mounted and secured in position, otherwise fire or elec trical shock may occur because of dust or moisture. The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper tube. All the models shall be connected with the mains which has system impedance limitations. While installing the unit, please see the following table for impedance information or consult with the supply authority. R410A series
3500W (12000BTU/h) 5100W (18000BTU/h)
0.219 0.186
6800W (18000BTU/h)
0.124
9
INSTALLATION 2 Installation of the drain joint(only for heat pump type) Insert the outdoor double-channel drain joint in one of the bottom holes of the suitable size then connect drain hose and joint together.
Bottom Double-channel drain joint
Drain hose
3 Joint of the connecting pipe Put some seal oil to cover the joint and the flare. Align the centre of joint in line with that of flare and tighten the nut of connecting pipe with wrench. ( Adjust the torque by the same method of connecting pipe for indoor unit.)
4 Air exhausting Screw down the cap of both gas shut-off valve and liquid shut-off valve as well as the nut of service port. Use Allen wrench to turn the valve cork of liquid side at 90 counter-clockwise, and close it after 10 seconds. Use soapy water to check check the gas leakage especially at all joint. If there is no gas leakage, please turn the valve cork of liquid side at 90 counter-clockwise again. Press the cork of service port at gas shut-off valve, 10 seconds later, when you see foggy gas discharged, that means inner air is exhausted out.
liquid connecting pipe liquid shut-off valve
allen wrench gas connecting pipe
gas shut-off valve
valve nuts service port service port cap
Use Allen wrench to turn the the valve cork of both liquid shut-off valve and gas shut-off valve counter-clockwise until they are completely open and then replace the valve caps and tighten them.
5 Process of flared tube Use the pipe cutter to cut off the broken part of flare. Remove burrs at the cut of the flare.
Copper pipe
Insert a nut into the connecting pipe and do flaring with specified flaring tools, reamers for example. Remove burrs at the cut of the flare.
90
Burr
Outer diameter
A(mm)
6.35mm ( 1/4
)
2.0--2.5
9.52mm ( 3/8
)
3.0--3.5
12.7mm ( 1/2
)
3.5--4.0
15.88mm(5/8
)
4.0--4.5
Check the quality of flaring technique.
10
Oblique
Roughness
Reamer
Burr
INSTALLATION 6 Adding refrigerant If the connecting pipe is longer than 7 metres, add refrigerant as needed. (Cool only type) added amount amou nt A=(Lm A=(Lm-7m) -7m) 15g/m ; (Heat pump type) type)added added amount A= (Lm(Lm-7m) 7m)
50g/m.. ( A: amount 50g/m
of added refrigerant, L: the length of connecting pipe)
The length of connecting pipe (m)
7
8
9
10
(Cool only only type)added type)added amount (g)
0
15
30
45
(Heat pump pump type)added type)added amount (g) (g)
0
50
100
150
Exhaust the air as the above-mentioned method.
Manifold gauge
Screw the gas shut-off valve to close, connect Low pressure valve
charging hose(low pressure) to the service valve and then open gas shut-off valve again. Set the unit to cool operation mode.
Pressure meter High pressure valve
Charging line
Connect the refrigerant bottle to the charging hose and then convert it. Fill in liquid liquid refrigerant as the above table.
Service port
Stop operation of the air conditioner. Disconnect the manifold gauge after turning off the shut-off valve, and then open gas shut-off valve again. Tighten nuts and caps of each valve.
7 Relocation of the air conditioner. Refer to this procedure when the unit is relocated. 1. Carry out the pump down procedure. 2. Remove the power cord. 3. Disconnect the assembly cable from the indoor and outdoor units. 4. Remove the flare nut connecting the indoor unit and the pipe. At this time, cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign material entering. 5. Disconnect the pipe connected to the outdoor unit. 6. Make sure you do not bend the connection pipes in the middle and store together with the cables. 7. Move the indoor and outdoor units to a new location. 8. Remove the mounting plate for the indoor unit and move it to a new location.
11
INSTALLATION 8 Operation test Before test operation, wiring safety inspection must be carried out carefully again. 1. Emergency switch operation: Every press of emergency switch, the air conditioner runs as in the following order: Cool only type: Cool
Shut off
Heat pump type: Cool
Heat
Shut off
2. Remote controller operation: If the indoor unit sounds like Di, Di when pressing I/O button, that indicates the air conditioner is under under the operation of remote controller. After that, press every button to test their functions. 3.Check switch operation: Open the front grille and press the check button. Switch on the power source and then the operation operation test is activated. If the indicator indicator lamps light up at first and then go out in succession or the LED window of the indoor unit illuminates at first and then goes out, the system is under normal operation. If one of of the indicator lamps is flashing flashing at all times, or failure codes are displayed on the LED window of the indoor unit, the system has something wrong and please check malfunction immediately.
BLOCK BLOC K DIAGRA DIA GRAM M Refrige rant Cycle Block Diagr am INDOOR UNIT
OUTDOOR UNIT Capillary tube Check valve 2-way valve Liquid side
Heat exchanger (Evaporator)
Capillary tube
n a f s s o r C
Heat exchanger (Condenser)
n a f r e l l e p o r P
Gas side 3-way valve
Accumulator
4-way valve Compressor
12
Cooling Heating Gas leak check point
TROUBL E SHOOTI NG Items to be checked first 1. Is the voltage of the power correct? The input voltage shall be rating voltage 10%. The air conditioner may not operate properly if the voltage is out of this range. 2. Is the link cable connecting the indoor unit and the outdoor unit linked properly? Please refer to the “wiring diagram” Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables. 3. When a problem occurs due to the contents illustrated in the table below, it is symptom not related to the malfunction of the air conditioner. Operation of air conditioner
Explanation
In COOL operation mode, the compressor does not operate at a room temperature higher than the setting temperature that the indoor fan should operate. In a HEAT operation mode, the compressor does not operate at a room temperature lower than the setting temperature that indoor fan should operate.
It happens after a delay of 3 minutes when the compressor is reoperated. The same phenomenon occurs when a power i s on. As a phenomenon that the compressor is reoperated after a delay of 3 minutes, the indoor fan is adjusted automatically with reference to a temperature of the air blow.
Fan speed setting is not allowed in AUTO or DRY mode.
The speed of the indoor fan is set to low in DRY mode. Fan speed of 3 steps is selected automatically in AUTO mode.
Compressor stops operation intermittently in DRY mode.
Compressor operation is automatically controlled in DRY mode depending on the room temperature and humidity.
Compressor of the outdoor unit is operating although it is turned off in HEAT mode.
When the unit is turned off while de-ice is activated, the compressor continues operation for up to 10 minutes(maximum) until the deice is completed.
Timer indicator lamp lights up and the air conditioner does not operate.
Timer is being activated and the unit is in ready mode. The unit operates normally if the timer operation is cancelled.
The compressor and indoor fan stop intermittently in HEAT mode.
The compressor and indoor fan stop intermittently if room temperature exceeds a setting temperature in order to protect the compressor from overheated air in HEAT mode.
Indoor fan and outdoor fan stop intermittently intermittently in HEAT mode.
The compressor operates in a reverse cycle to remove exterior ice in HEAT mode, and indoor fan and outdoor fan do not operate intermittently for within 20% of the total heat operation.
The compressor stops intermittently in COOL mode or DRY mode, and fan speed of the indoor unit decreases.
The compressor stops intermittently or the fan speed of the indoor unit decreases to prevent inside/outside air frozen depending on the inside/outside air temperature.
SELF DIAGNOSIS FUNCTION Our company provides the end-users end-users with thoughtful services by installing various diagnostic systems to indicate the following irregular performances.
Check code
Diagnosis of malfuncti malfunction on
FAULT F6
PG motor faults
FAULT F7
Indoor TEMP sensor faults
FAULT F8
Indoor coil pipe TEMP sensor faults
FAULT F9
Outdoor coil pipe TEMP sensor faults
13
FAU LT DIAG DI AGNO NOSI SIS S BY SY SYMP MPTO TOM M Fan motor or its capacitor faults. Fan motor error
Loose connection or badly contact.
No cooling
Control circuit error. Voltag e may appear a litt le lower or hig her. her. compressor does not operate
Loose or wrong connection. Compressor faults or jumps for overloading.
No cooling effect at all
Control circuit error. Leakage of refrigerant
Recharge the refrigerant at leaking place. The capi llary, pipeli ne are blo cked or the valv e is not op en or the c onnect ing tube is folded flat.
Block of the cooling system
Some lea kage in the valve . Insufficient refrigerant
Some cra cks, wel ding failur e in the system. Extra fluorin is added during mounting.
Poor cooling efficiency
No periodical cleaning.
Air filter is blocked
Accumulated lampblack, dust or contaminated ambient environment. Mounting location is not suitable, such as near the wall.
Poor efficiency of heat dissipating on the outdoor unit
Air outlet is blocked o r accumul ated lampbl ack or dus t is attach ed to the vane. The ou tdoor unit gets e xposed to the su n for too long period.
Too high am bient temperature
Not for residential use. Air conditioning burden is not adeq uate for the room
The door s and window s are not closed w ell; too wea k of input coo ling pow er or too man y heat resources in the room.
Low airflow volume
Low fan mo tor freque ncy or cap acitor is not functional. Low fan speed or the f an motor f aults.
The four-way valve error
Blockage in the system
The dis tribut ing air of the f our-w ay valve ma y have mixed together; the valve core or solenoid valve faults. The valve i s not compl etely op en; the capi llary or Pipeline is half blocked. Connecting tube is folded flat.
14
FAU LT DIAG DI AGNO NOSI SIS S BY SY SYMP MPTO TOM M Fan motor or its capacit or faults. Fan motor error
Loose connect ion or badly contac t.
No heating
Control circuit error. Voltage may appear a lit tle lower or hig her. her. compressor does not operate
Loose or wr ong connection . Compressor faults or jumps for overloading.
No heating effect at all
Control circuit error. Leakage of refrigerant
Recharge the refr igerant at leaking place.
Block of the cooling system
The capill ary, pipeline are blocke d or the val ve is not open or the connecting tube is folded flat.
The four-way valve or solenoi d valve faults.
The four- way valve did not co mmutate or the distri buting air of the four- way valve may have mixed together. together. Some leakage in the valve .
Insufficient refrigerant
Some cracks , welding failure in the system. Extra fluor in is added during mounti ng.
Poor heating efficiency
No periodical cleaning.
Air filter is blocked
contaminated ambient environment.
Too low ambient temperature
B el o w 0 .
Too thick frost generated on the condenser.
The condense r does not defr ost, no smooth air circulation.
Extra refrigerant or mixing ai r in the system
Discharge the redundant refrigerator recharge the refrigerant after vacuum extraction.
Air conditioning burden is not adequ ate for the room
The doors and windows a re not closed wel l; too weak of input co oling/he ating pow er. er. Accumulate d lampbla ck or dust is attached to the vane.
The condenser is too dirt y
Not sati sfy the conditio ns for el ectric heater running.
The electr ic heater is not working
Plug cor ds may be loose. Low fan mot or frequency o r capacit or is not functional.
Low airflow volume
Low fan speed or the fan motor f aults. The four-way valve error
Blockage in the system
The dist ributi ng air of the four-way valve may have mixed together ; the val ve core or sol enoid valve faul ts. The valve is not compl etely open; the capil lary or Pipeline is half blocked. Connecti ng tube is folded flat.
15
FAU LT DIAG DI AGNO NOSI SIS S BY SY SYMP MPTO TOM M Fixing b olts some where may loose or rub, som e spare p arts ma y not matc h very well.
Collision sound of the machine Noisy
Flowing sound of the liquid
Refrigerant circulation or pressure change of refrigerant while switch on/off.
Sound of the running fan motor
Vane imbalance or distortion , rupture; loose screw of vane.
Noise from indoor unit
Noise from Outdoor unit
Sound of plastic pieces rubbing or deforming
Plasti c pieces de form due to exp ansion when hot and sh rink when col d. Or some spar e parts may not mat ch very wel l.
Collision sound of the machine
Collisi on of the pipeli ne, fixin g screw s loose or deform caused by rubbing.
Oscillation sound
Inappropriate installation method; the unit does not m atch with the i nstalla tion kit very we ll or the com presso r quiver s acutely.
Sound of running fan motor
Vane imbalance or distortion.
Sound made by cooling operation
Refrigerant circulation or vane distortion.
Someth ing wron g with the compr essor, such as oil shortage, valve slice distortion.
Sound of running compressor
The unit d oes not match w ith the insta llatio n kit very well Resonance sound The whole unit resonates thedoor and window.
Collis ion of the pipelin e, fixin g screws loose or plastic pieces deform.
Collision sound of the machine Noise from the whole unit
Sound made by compressor or motor
The comp ressor or motor ma kes abnor mal noise.
Flowing sound of condensed water
Conden sed wat er is attache d to the vane.
Sound of r unning fan motor
Vane imbalance or distortion.
16
FAU LT DIAG DI AGNO NOSI SIS S BY SY SYMP MPTO TOM M Switching on the air conditioner
Juncti on wire looses and collides with the outer cover.
The current leakage switch jumps to turn off
Degraded capability of wire insulation. Insulation capability of some components has lowered.
Check the resistance of every component by multimeter
Water comes into the plug or electric components.
The fus e is blown or air l imit switch jumps to t urn off
Is the voltage of power s upply lower than 15% of rated vo ltage (220V)?
No
Yes Yes
The vol tage is low, please add manostat.
Short c ircuit in the electric wire or connection wire.
Short circuit somewhere.
Partia lly short circuit in some components.
Yes Yes
Check a s the above -mentioned method.
Fuse capacity is adeq uate or not? No
Replace with adequate fuse.
Strong circuit breaks the circulation.
Without any response
Check whether the receptacle has power or not.
The transformer faults.
The main c ontrol board faults. Power supply error
17
CONTRO L SPECIF ICATI ON
1
ABBREVIATION ST: ST: Se ttin g Temp erat ure PT: PT: In door coil Pi pe Temp erat ure RT: Room Temperature OT: Outdoor coil pipe temperature OFAN: Outdoor fan IFAN: Indoor fan COMP: Compressor
2
OPER ATION ATI ON OF MA IN BOARD BOAR D COOL MODE The The ST at cool cool mode mode is adju adjust stab able le with within in16 16 -31 -31
.
When RT ST, both the compressor compressor and the outdoor outdoor fan start; When RT
Condensat e dew preventi on If the horizon tal a ir flow louver is s et at low angle on COOL mode, after a while, it will auto swing to its maximum angel for system prote ction. 3 minute s later, the horiz ontal ai r flow louver will resum e to its origin al position.
Anti-ice function When PT=2 , the compressor does not stop and indoor fan runs at high speed. When PT PT -1 high speed.
for 1 minute, minute, the compr compressor essor and outdoor outdoor fan fan stop stop and indoor indoor fan runs at
When PT 8 for 5 minutes, minutes, anti-ice anti-ice prote protection ction deactivat deactivates, es, both the compr compresso essorr and the outdoor f an start operation.
8 2 -1 5 mins OFAN
ON
ON OFF
COMP
ON
3 mins
ON
OFF High speed IFAN
S e t sp e e d
S e t sp e e d
18
CONTRO L SPECIF ICATI ON HEAT MODE If th e air cond itio ner is o ff and t hen turn ed on w hil e set at C OOL ,HE AT or DR Y mode , it wi ll take appr oximately 3 minutes f or the compressor to start. The The ST at heat heat mode mode is adj adjus usta tabl ble e wit withi hin1 n16 6 -31 -31
.
When RT ST, the compress compressor or stops stops;; when RT
, the the compre compressor ssor starts. starts.
Once tu rning on the uni t while set at heat mode, if all the cond itions meet with t he requiremen t of c ompressor operation, the four -way valve gets cha rged and 8 seconds later, the comp ressor a nd outdoor fan sta rt running.
Heat overloa d protecti on: F o r 7 0 0 0BTU/h Model, w h e n P T 4 7 , t h e o u t d o o r f a n s t o p s ; w h e n P T fan fan sta start rts; s; when when PT 60 , the the comp compre ress ssor or stop stops. s.
42
, the outdoor
F o r 9 0 0 0BTU/h Model, w h e n P T 5 0 , t h e o u t d o o r f a n s t o p s ; w h e n P T fan fan sta start rts; s; when when PT 63 , the the comp compre ress ssor or stop stops. s.
47
, the outdoor
F o r 9 0 0 0 BTU/h Model, w h e n P T 5 5 , t h e o u t d o o r f a n s t o p s ; w h e n P t fan fan sta start rts; s; when when PT 63 , the the comp compre ress ssor or stop stops. s.
Deice control: Condition s for activati ng deice: a. The working h ours of compressor accumulat es to be 40 mi nutes. b. When OT -4 for 1 minute. Condition s for terminatin g deice: a. When OT 15 for 1 minute. b. Over 10 minutes of deic ing operation.
Electric-heat control: Conditions for initiating electric-heat function: a . R T 2 3 ; b . RT + 3 ST; c. The indoor fan runs; d. Turn on the electric- heat key; e. PT<50 Conditions for terminating electric-heat function: a . P T 5 0 ; b . RT 2 6 ; c . T h e i n d o o r f a n s t o p s r u n n i n g ; d. Turn off the electric -heat key; e. Mode change. Conditions for terminating electric-heat function: a . P T 5 0 ; b . RT 2 6 ; c . T h e i n d o o r f a n s t o p s r u n n i n g ; d. Turn off the electric -heat key; e. Mode change. 15
OT
-4
COMP
ON OFF
OF AN
ON OFF
4-way valve
ON OFF 30 S
30 S
15S
TIME 10 minutes at most
19
15S
50
, the outdoor
CONTRO L SPECIF ICATI ON DRY MODE In this mode, the air conditioner automatically sets the room temperature and this temperature is incontro incontrollable llable by remote remote contr controller oller.. The initia initiall ST =RT =RT-2 -2 . Control during dry mode: a. When When RT<15 T<15 , dry dry mode mode is not availa available ble;; when when RT 15 , the compre compresso ssorr interm intermitt ittent ently ly runs under t he influenc e of TS and RT. RT. b. When When RT 23 , if if RT RT ST, ST, the the com compr pres esso sorr run runs s inte interm rmit itte tent ntly ly as this this:: Run for 8 minutes Stop for 3 minutes If RT
c. When When RT<2 RT<23 3 , if RT RT ST, the comp compres ressor sor runs runs interm intermitt ittent ently ly as this: this: Run for 2 minutes Stop for 3 minutes If RT
d. In this mode, the indoor fan keeps running at low speed with the same pace as the compressor, and this speed can not be controlled by remote controller.
AUTO MODE In this mode, the air conditioner can automatically adjust the room temperature to decide the most suitable temperature. At the start of operation, the unit will automatically select the operation mode according to the room temperature. The following table shows the conditions which are set at start up. Room Temperature Tem perature (RT) 26
RT 26 RT 25
25
RT 23 RT 23
Cool only type Mode Cool Dry
Heat pump type
Initial Setting Temperature 24
Mode Cool
RT-2 RT-2 21
Initial Setting Temperature 24 RT-2
Dry
RT-2
Heat
26
Auto mode entering a. Once some operation mode is determined, it can not be changed even if the RT has altered. b. You can change the operation mode by remote controller. controller. If restart within 2 hours, the unit will resume the same operation mode as before. If restart after 2 hours, the unit will select the operation mode according to the initial room temperature. At auto mode the ST can onl y be set + or - 2
of the RT. RT.
20
CONTRO L SPECIF ICATI ON FAN MODE Indoor fan ru ns at the set speed while compressor and ou tdoor f an are tur ned off. off. Indoor f an speed can be adjusted for low, medium an d high.
SLEEP MODE Sleep mode in cooling and drying running. A. The indoor fan runs at low speed. B. After one one hour of operatio operation n the set temperat temperature ure will increase increase by by 1 . One hour later, later, the set set temperatur temperature e will inc increa rease se by 1 onc once e more. more. The uni unitt will will then then conti continue nue ope operat rating ing at 2 abo above ve the the set set tempe temperat rature ure..
Sleep mode in heating running. A. The indoor fan runs at low speed. B. After one one hour of operatio operation n the set temperat temperature ure will decreas decrease e by 2 . One hour later, later, the the set temperatu temperature re willl decrea wil decrease se by by 2 onc once e more. more. The uni unitt will will then then contin continue ue opera operatin ting g at 4 bel below ow the the set set temper temperatu ature. re.
21
TO DISASSEMBLE MECHANICAL PARTS Stop operation of the air conditioner and remove the power cord before repairing the unit. The following pictures taking L1 series as an example are presented just for the purpose of illustration.
Indoor unit No
Parts
1
Front grille
Procedure
Remark
1.Stop the air conditioner operation and block the main power. 2.Contract the second finger to the left ,and right handle and pull to open the inlet grille.
3.Draw away signal line.
4.Take the left and right filter out.
5. Loosen two fixing screw of front grille.
6.Put hands at the two ruts of the body, then pull the front panel out .
22
TO DISASSEMBLE MECHANICAL PARTS No
Parts
2
Electrical parts
Procedure
Remark
1.Loosen the earth screw in evaporator.
2.Loosen the stepping motor line, and p ull softly the indoor pipe temperature sensor out from the pipe casing.
3.Push the hook outside to take the electrical box out easily.
4.Separate the electrical box from the indoor unit.
3
Ass’y tray drain
1.Push the left and right hooks to make the ass’y pulled out.
23
TO DISASSEMBLE MECHANICAL PARTS No
Parts
Procedure
Remark
2.Separete the ass’y tray drain from the body.
1.Push the left hook and separate the left part out of evaporator.
2.Push the right right hook and and separate the right part out of evaporator. 4
Evaporator
3.Separate the evaporator from the indoor unit.
5
Fan motor and cross fan
1.Separate the fan motor from the fan.
24
TO DISASSEMBLE MECHANICAL PARTS Outdoor unit No
Parts
Procedure
Remark
1
Cabinet
1.Turn off the unit and remove the power cable.
2.Remove the upper cabinet, the front cabinet and back cabinet. 2
Fan motor & propeller fan
1.Remove the nut flange. (Turn to the right to remove as it a left turned screw ) 2.separate the propeller fan from fan motor. 3.Loosen the fixed screw of fan motor,separate the fan motor from outdoor unit
3
Ass'y control 1.Loosen the fixing screw of out the base-electrical control .
2.separate the connector.
3.Separate the ass' ass' y control out from the outdoor unit.
25
Exploded Views and Parts List Indoor unit
BKAP 070/BKAP 071
BKAP 090/BKAP 091
BKAP 120/BKAP 121
BKAP 125/BKAP 126
26
Exploded Views and Parts List Indoor unit
BKAP 070/BKAP 071
BKAP 090/BKAP 091
BKAP 120/BKAP 121
BKAP 125/BKAP 126
No. English Part Na N am e 1 ai air filter
qty.
remark
2
left and right are sameness L14 L15 L16 parted as upper panel and lower panel
2
Front panel
1
3
LED
1
4
Electrical control box
1
5
Enclosure
1
6
Swing louver
1
7
Water collecting tray
1
8
Evaporator
1
9
Indoor unit fan
1
N o.
1
11 Rubber bear support
1
12 Bottom enclosure
1
13 Power supply cord clip
1
14 Electrical control box
1
15 Indoor unit terminal block
1
16 Transformer
1
17 Mounting plate
1
18 Main control board
1
19 Power supply cord
1
20 Room temperature sensor
1
21 Pipe temperature sensor
1
22 Pipe fixing plate
1
23
fan motor
1
24 Electrical holder
1
25 Stepping motor
1
qty.
26 Dr Drain hose
1
27 Electrical control cover
1
28
Indoor display panel
27
Decorate ring
remark
1
L1 L17(displ splay piece) L15(transparency piece) L15without
1
L1 L3 L16 L18 without L15(decorate tape), L17(decorate board)
L14(control box) L15(display box) L16 without L17without
29
10 Oil bearing
English Part Na Name
Exploded Views and Parts List Outdoor unit
BKAP 070/BKAP 071
BKAP 090/BKAP 091
28
Exploded Views and Parts List AUS US-1 -12C 2C53 53R1 R130 30L( L(11-18 18)( )(a) a) Outdoor unit A No. English Part Na Name
AUSAU S-12 12C5 C53R 3R13 130L 0L(1 (1-1 -18) 8)(a (a2) 2)
Quantity No. English Part Na Name Quantity
1
Air outlet grille
1
2
Front panel
1
3
Outdoor unit fan
1
4
Outdoor fan motor
1
5
Outdoor fan motor supporter
1
6
Left handle
1
7
Left back side board
1
8
Co Condenser
1
9
Ba Back cover
1
10 Fi Fixed board
1
11 Top cover
1
12 Fan motor capacitor
1
13 Capacitor for Compressor
1
14 Electrical install board
1
15 Capacitor fixing clip
1
16 Outdoor unit terminal block
1
17 Power supply cord clip
1
18 Right handle
1
19 Right back side board
1
20 Capillary assembly
1
21 High pressure valve
1
22 Low pressure valve
1
23 Va Valve board
1
24 Co Compressor
1
25 Bottom board
1
26 Partition
1
29
Exploded Views and Parts List Outdoor unit
BKAP 120/BKAP 121
BKAP 125/BKAP 126
30
Exploded Views and Parts List Outdoor unit
BKAP 120/BKAP 12 121
No. English Part Na Name
BKAP 125/BKAP 12 126
Quantity
1
Air outlet grille
1
2
Left handle
1
3
Front panel
1
4
Outdoor unit fan
1
5
Partition
1
6
Top cover
1
7
Left back side plate
1
8
Condenser Co
1
9
Right back side plate
1
10 Right handle
1
11 Fan motor capacitor
1
12 Capacitor for Compressor
1
13 Electrical install board
1
14 Outdoor unit terminal block
1
15 Power supply cord clip
1
16 Outdoor fan motor supporter
1
17 Outdoor fan motor
1
18 Four way valve
1
19 Capillary assembly
1
20 High pressure valve
1
21 Va Valve board
1
22 Low pressure valve
1
23 Co Compressor
1
24 Back board
1
31
No. English Part Na Name
Quantity
Wiring Diagrams Indoor unit
BKAP 070
BKAP 090
IFAN
Outdoor unit
BKAP 071
BKAP 091
32
Wiring Diagrams Indoor unit
BKAP 120
BKAP 125
IFAN
Outdoor unit
BKAP 121
BKAP 126
33
