Vivax ACP-24CH70AEB Service Manual Download Page 16

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Service manual

7. Schematic diagram and Wiring diagram

7.1. Schematic diagram

Indoor unit of MSE-21/24/28C/HR

ACP-24CH70AEB

GND

SDA

SCL

VCC

IC224C04

+5V

C3 104

R4
10K

R3
10K

SDA

SCL

104

+5V

R712K

IC1KIA7042

RST

BUZ1

R9
1K

+12V

BUZ

10uF/16V

R17

8.1K/1%

104

R11 2K

D14

IN4148

D13
IN4148

+5V

CN7

T1_room

10uF/16V

R18

8.1K/1%

C11

104

R122K

D16

IN4148

D15
IN4148

+5V

CN8

T2_I.pipe

C14

102

+5V

R81K

REC

IN1

IN2

IN3

IN4

IN5

IN6

IN7

VSS

VDD

OUT7

OUT6

OUT5

OUT4

OUT3

OUT2

OUT1

IC7

UJN2003

STEP_I2

STEP_I1

STEP_I3

STEP_I4

+12V

C12
104

CN11

SWING

RY6
HEAT N

RY7
HEAT L

HEAT

FUSE1

3.15A/250V

LOAD_HEAT L

LOAD_HEAT N

CN13

HEAT_L

CN10

HEAT_N

ZR1

14D681K

C16

0.1uF/275VAC

CN5

TRANS_IN

SW1

PTC1
82RM

10K

C7
104

10K

+5V

SW_TEST

SEG1

SEG2

SEG3

SEG4

+12V

C2
104

Vin

GND

Vout

IC3 7805

+5V

470uF/16V

104

+12V

1000uF/25V

104

IN4007*8

104

2200uF/25V

CN1

TRANS_OUT

CN2

POWER

RY5
FAN_IN H

+12V

RY4
M

RY3
L

In_FanM

In_FanL

In_FanLL

In_FanH

In_FanM'

In_FanL'

In_FanLL'

In_FanH'

RY1
LL

In_FanM'

In_FanL'

In_FanLL'

In_FanH'

CN6

CON5

HEAT'

R1
10K

+5V

Model

12VAC2

12VAC1

5VAC2

5VAC1

VSS

VDD

P25

P26

P00

P01

P02

P03

P04

VSS1

P05

P50

P51

P52

P53

AVDD

AVREF

ANI0

ANI1

ANI2

ANI3

ANI4

ANI5

AVSS

P10

P11

P30

P31

P32

P33

P20

VDD1

P21

P22

P23

P24

Vpp/IC

XT2

XT1

RESET

IC4

IC_UPD789166(42PIN)

In_FanM

In_FanL

In_FanLL

In_FanM

In_FanL
In_FanLL

SDA
SCL

RST

BUZ

T1_room
T2_I.pipe

REC

STEP_I2

STEP_I1

STEP_I3
STEP_I4

In_FanH

HEAT

SW_TEST

+5V

SEG1
SEG2
SEG3
SEG4

SCL

SDA

T1
T2
SW

BUZ

REC

Reset

SEG1
SEG2
SEG3
SEG4

+5V

Model

STEP_I1
STEP_I2
STEP_I3
STEP_I4

In_FanH

HEAT

R19
1M

C10
104

Model

TxD20

RxD20

R13

Q1
9014

IN4148

R14

Q3
9014

D11

IN4148

R16

Q5
9014

+12V

RXD20
TXD20

ZD1

IN4749

C15

473

100uF/35V

D18

1N4007

C17

471/250v

C13

104

R24

5.1k

C19

101

D17

1N4007

R27

4.7K

R22

3.5K/3W

R23
100K

R20

11K/2W

R21

11K/2W

R25
330

TxD20

RxD20

+5V

IC6

PC851

IC5

PC817

R152k

NPN

R14

C20
101

CN12

1
2
3

REC1

R19

150

C11

104

47UF/16V

LED9

RUN

LED7

DEF.

LED6

AUTO

LED8

TIMER

显示板原理图

C18

104

Dsa

Dsb

GND

Vcc

IC8

74HC164

DIS1
WT4021BG

R45330

R46 330

R47 330

R48 330

R49 330

R54 330

R55 330

Q10

DTA143

Q9
DTA143

DTA143

SEG1

SEG2

SEG3

REC1

SEG4

SEG5

C20

104

SEG5

REC1

R2
10K

+5V

EEPROM

冷暖

有掉电记忆

无掉电记忆

单冷

无

有

R59

10K

C17

101

1
2
3
4
5
6
7
8

CN9

100UF/16V

R60

10K

C16

101

Summary of Contents for ACP-24CH70AEB

Page 1: ...ACP 24CH70AEB RoHS Service manual ENG ...

Page 2: ......

Page 3: ... for installation 15 8 2 Connecting the cables 15 8 3 Pipe length and the elevation 15 8 4 Air purging of the piping and indoor unit 16 8 5 Pumping down Re installation 17 8 6 Re air purging Re installation 18 8 7 Balance refrigerant of the 2 way 3 way valves 19 8 8 Evacuation 20 8 9 Gas charging 21 9 Pressure table 22 9 1 MSE 21CRN2 22 9 2 MSE 21HRN2 22 9 3 MSE 24CRN2 23 9 4 ACP 24CH70AEB 23 9 5 ...

Page 4: ... available for heating mode 32 11 9 Auto mode 33 11 10 Force cooling function 33 11 11 Sleep mode 33 11 12 Auto restart function 34 11 13 Turbo mode 34 11 14 PLASMA optional 34 11 15 Anion optional 34 12 Model and Parameters 35 13 Troubleshooting 36 13 1 Display board 36 13 2 Troubleshooting 36 13 3 Detailed malfunction analyse 37 13 4 Malfunction Stat 39 14 Characteristic of temperature sensor 42...

Page 5: ......

Page 6: ... deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or a windows is left open Moisture may condense and wet or damage furniture Take care to ensure that power cable could not be pulled out or damaged during operation...

Page 7: ... to cool air for long periods of time Do not sit in the draft This could harm to your health Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property Do not block the inlet or outlet of air flow It may cause product failure Use a soft cloth to clean Do not us...

Page 8: ...e unit will decide the louver direction according to operation mode Two direction air vane The fan is turn to low speed cooling heating The unit will be turn off at the seventh hour Sleep mode auto control The function is usually used in rainy days in springtime or damp areas Independent dehumidification Operation indication Lamps LED The louver can be set at the desired position or swing up and d...

Page 9: ...he hydrophilic fin can improve the heating efficiency at operation mode Hydrophilic aluminum fin It is only operated in the heating operation mode except defrosting operation Discharge pipe temperature protect Anti rust cabinet Valve protection cover 4 way valve control Made from electrolytic zinc steel sheet and anti rust coated components It protects the valves and prevents water from dripping T...

Page 10: ...Service manual 5 3 Dimension 3 1 Indoor unit Dimension Mode W H D 21K 1080 330 230 24K 1080 330 230 28K 1080 330 230 ...

Page 11: ...Service manual 6 3 2 Outdoor unit Dimension Mode W H D L1 L2 L3 21K 845 695 335 560 360 560 24K 845 695 335 560 360 560 28K 845 695 335 560 360 560 ...

Page 12: ...ndoor fan motor Speed hi mi lo r min 1180 1080 800 1180 1080 800 1200 1120 1080 1000 Indoor air flow Hi Mi Lo m3 h 800 730 600 800 730 600 1080 1020 960 880 Indoor noise level Hi Mi Lo dB A 44 5 44 5 45 42 39 Model YDK53 6C YDK53 6C YDK53 6D Brand Dayang Dayang Welling Input W 135 135 140 Capacitor uF 3μF 450V 3μF 450V Outdoor fan motor Speed r min 800 800 800 Outdoor air flow m3 h 1900 1900 2500 ...

Page 13: ... fan motor Speed hi mi lo r min 1200 1120 1080 1000 1250 1180 1110 1050 1250 1180 1110 1050 Indoor air flow Hi Mi Lo m3 h 1080 1020 960 880 1150 1080 1020 960 1150 1080 1020 960 Indoor noise level Hi Mi Lo dB A 45 42 39 47 44 41 47 44 41 Model YDK53 6D YDK100 6C YDK100 6C Brand Welling Welling Welling Input W 140 169 169 Capacitor uF 5 5 Outdoor fan motor Speed r min 800 800 800 Outdoor air flow m...

Page 14: ...Service manual 9 5 Refrigerant cycle diagram Cooling only Heat pump mode ...

Page 15: ...lt from the continuous operation under constant air temperature conditions However excludes the initial pull down stage 6 2 Heating operation Indoor air temp DB Outdoor unit air temp DB Note The chart is the result from the continuous operation under constant air temperature conditions However excludes the initial pull down stage ...

Page 16: ...2 5VAC1 VSS 1 VDD 2 P25 3 P26 4 P00 5 P01 6 P02 7 P03 8 P04 9 VSS1 10 P05 11 P50 12 P51 13 P52 14 P53 15 AVDD 16 AVREF 17 ANI0 18 ANI1 19 ANI2 20 ANI3 21 ANI4 22 ANI5 23 AVSS 24 P10 25 P11 26 P30 27 P31 28 P32 29 P33 30 P20 31 VDD1 32 P21 33 P22 34 P23 35 P24 36 Vpp IC 37 XT2 38 XT1 39 RESET 40 X2 41 X1 42 IC4 IC_UPD789166 42PIN In_FanM In_FanL In_FanLL In_FanM In_FanL In_FanLL SDA SCL RST BUZ T1_...

Page 17: ...RL4 12V L1 RL3 L1 RL2 L1 RL1 L1 5VAC1 5VAC2 1 2 3 CN1 TRANS_OUT P23 INTP0 1 P24 INTP1 2 P25 INTP2 3 AVDD 4 P60 AN10 5 P61 AN11 6 P62 AN12 7 P63 AN13 8 AVSS 9 P50 10 IC 19 X2 20 X1 21 VSS 22 VDD 23 P10 24 P11 25 P20 ASCK20 26 P21 TxD20 27 P22 RxD20 28 P51 11 P52 12 P53 13 P00 14 P01 15 P02 16 P03 17 RESET 18 IC2 IC UPD78F9116 LED1 R24 68K 2W D14 4007 IC3 PC817 R22 5 1K R19 2K R16 10K C8 104 5V 相序A ...

Page 18: ...Service manual 13 7 2 Wiring diagram MSE 21CRN2 MSE 24CRN2 MSE 28CRN2 ...

Page 19: ...Service manual 14 MSE 21HRN2 ACP 24CH70AEB MSE 28HRN2 ...

Page 20: ... 2 5 2 5 2 5 8 3 Pipe length and the elevation Pipe size Capacity Btu h GAS LIQUID Standard length m Max Elevation B m Max Elevation B m Additional refrigerant g m 3 8 φ9 52 1 4 φ6 35 5 5 10 30 7k 12K 1 2 φ12 7 1 4 φ6 35 5 5 10 30 1 2 φ12 7 1 4 φ6 35 5 8 15 30 5 8 φ15 88 1 4 φ6 35 5 10 20 30 18K 28K 5 8 φ15 88 3 8 φ9 52 5 10 20 65 5 8 φ15 88 3 8 φ9 52 5 15 30 65 30K 36K 3 4 φ19 05 3 8 φ9 52 5 15 3...

Page 21: ...heck the flare connection for gas leakage 4 Purge the air from the system Set the 2 way valve to the open position and remove the cap from the 3 way valve s service port Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute 5 Use torque wrench to tighten the service port cap to a torque of 1 8 kg m 18n m 6 Set the 3 way valve to the opened ...

Page 22: ... charge hose with the push pin to the gas service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose 5 Set the 2 way valve to the close position 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa 7 Immediately set the 3 way valve to the closed position Do this quickly so that the...

Page 23: ...r 1 minutes repeat 3 times After purging the air use a torque wrench to tighten the flare nut to on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicate 0 3 to 0 5 Mpa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3...

Page 24: ...the service port 3 Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa If there is no air in the refrigeration cycle the pressure when the air conditioner is not running is higher than 0 1Mpa discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa If this is the case it will not be necessary to apply a evacuation Discharge ...

Page 25: ...e has moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil if the vacuum pump oil becomes dirty or depleted replenish as needle ...

Page 26: ...he specified amount of refrigerant if can be charged with a little at a time approximately 150g each time0 while operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the refrigerant to be...

Page 27: ...m2 32 D 23 W 5 2 5 4 5 6 5 7 5 8 6 0 9 2 MSE 21HRN2 cooling mode outdoor temperature Dry bulb temp pressure indoor conditions 25 30 35 40 45 50 pressure kg cm2 21 D 15 W 4 4 4 5 4 6 4 7 4 8 4 9 pressure kg cm2 24 D 17 W 4 5 4 6 4 7 4 8 5 0 5 1 pressure kg cm2 27 D 19 W 4 8 4 9 5 1 5 1 5 2 5 4 pressure kg cm2 32 D 23 W 5 2 5 4 5 6 5 7 5 8 6 0 heating mode outdoor conditions indoor conditions pressu...

Page 28: ...door temperature Dry bulb temp pressure indoor conditions 25 30 35 40 45 50 pressure kg cm2 21 D 15 W 4 3 4 4 4 5 4 6 4 7 4 8 pressure kg cm2 24 D 17 W 4 4 4 6 4 7 4 8 5 0 5 1 pressure kg cm2 27 D 19 W 4 6 4 8 5 0 5 1 5 3 5 4 pressure kg cm2 32 D 23 W 5 1 5 3 5 4 5 6 5 7 5 9 heating mode outdoor conditions indoor conditions pressure 12 D 11 W 7 D 6 W 0 D 1 W 4 D 6 W 7 D 9 W 15 D x W 15 pressure kg...

Page 29: ...or temperature Dry bulb temp pressure indoor conditions 25 30 35 40 45 50 pressure kg cm2 21 D 15 W 4 1 4 2 4 3 4 5 4 6 4 7 pressure kg cm2 24 D 17 W 4 3 4 5 4 6 4 8 4 9 5 1 pressure kg cm2 27 D 19 W 4 6 4 8 5 0 5 1 5 2 5 4 pressure kg cm2 32 D 23 W 5 0 5 2 5 4 5 6 5 7 5 9 heating mode outdoor conditions indoor conditions pressure 12 D 11 W 7 D 6 W 0 D 1 W 4 D 6 W 7 D 9 W 15 D x W 15 pressure kg c...

Page 30: ... 5 44 5 16 4 81 4 42 4 06 3 79 Sensitive capacity kW 3 80 3 69 3 53 3 34 3 18 3 04 21ºC D 15ºC W Input kW 1 97 2 13 2 31 2 48 2 64 2 81 Total capacity kW 5 83 5 58 5 25 4 93 4 61 4 33 Sensitive capacity kW 3 47 3 37 3 25 3 13 3 04 3 00 24ºC D 17ºC W Input kW 1 97 2 16 2 34 2 52 2 70 2 90 Total capacity kW 6 24 6 12 5 80 5 35 4 87 4 44 Sensitive capacity kW 4 37 4 28 4 12 3 92 3 71 3 55 27ºC D 19ºC...

Page 31: ... 25 5 81 5 34 4 90 4 57 Sensitive capacity kW 4 61 4 47 4 28 4 06 3 85 3 69 21ºC D 15ºC W Input kW 2 30 2 50 2 71 2 95 3 13 3 35 Total capacity kW 7 04 6 73 6 35 5 94 5 55 5 22 Sensitive capacity kW 4 89 4 75 4 58 4 41 4 28 4 23 24ºC D 17ºC W Input kW 2 30 2 52 2 75 2 98 3 21 3 44 Total capacity kW 7 54 7 40 7 00 6 45 5 87 5 37 Sensitive capacity kW 5 30 5 19 5 12 4 75 4 51 4 30 27ºC D 19ºC W Inpu...

Page 32: ...5 7 01 6 54 6 10 5 77 Sensitive capacity kW 5 81 5 67 5 48 5 26 5 05 4 89 21ºC D 15ºC W Input kW 2 70 2 90 3 11 3 35 3 53 3 75 Total capacity kW 8 24 7 93 7 55 7 14 6 75 6 42 Sensitive capacity kW 6 09 5 95 5 78 5 61 5 48 5 43 24ºC D 17ºC W Input kW 2 70 2 92 3 15 3 38 3 61 3 84 Total capacity kW 8 74 8 60 8 20 7 65 7 07 6 57 Sensitive capacity kW 6 50 6 39 6 32 5 95 5 71 5 50 27ºC D 19ºC W Input ...

Page 33: ...perature protection restoring temperature TE7 Evaporator high temperature protection compressor off temperature TE8 Evaporator high temperature protection fan off temperature TE9 Evaporator high temperature protection restoring temperature TE10 Condenser high temperature protection compressor off temperature TE11 Condenser high temperature protection compressor restoring on temperature 11 2 Functi...

Page 34: ...tion of outdoor unit mostly contains the protection of exhausting temperature the protection of exhausting press etc when any of the protection occur the outdoor unit exports a signal to indoor unit The action of indoor unit when the indoor unit infers a high tension signal from outdoor exceeding 3 seconds the whole unit turns off come to checking condition the indoor unit shows the information of...

Page 35: ... condition of this protection Under the protection the outdoor fan keeps run 11 6 Dehumidifying mode 11 6 1 The 4 way valve is off in dehumidifying mode 11 6 2 At dehumidifying mode the unit runs In cooling the speed of the indoor fan is low and the speed can t change 11 6 3 At dehumidifying mode the protection is the same as that of cooling mode 11 6 4 At dehumidifying mode the action of step mot...

Page 36: ...or 4 minutes after starting and then judge temperature Meanwhile other protections are still valid Tc 1 T1 Ts Room temp up Room temp down Tc Compressor and outdoor fan off Compressor and outdoor fan on Ts Tc is the temperature of heating mode The temperature will increase 4 3 2 1 the unit choose one with the jump JT1 JT2 JT1 JT2 OFF ON OFF 1 3 ON 2 4 11 7 4 Indoor Fan actions at heating mode Indoo...

Page 37: ... exceed 3 minutes Calculate from the end of latest defrost evaporator high temp Protection only closes outdoor fan with the compressor still running Add up to 90 minutes 11 8 2 Attention defrosting end or T3 20 TC2 the clock restart 11 8 3 Ending condition of defrosting If one of following conditions is satisfied end the defrost and turn into heating mode A The defrost time has reached to 10 minut...

Page 38: ...r cannot start for 15 minutes reselect the operation mode according to the room temp and set temp or reselect when the set temp varies 11 10 Force cooling function 11 10 1Select forced cooling function with the forced cooling button or the switch 11 10 2The compressor is unconditionally turned on after 30 minutes cooling operation the unit turn to force auto mode 11 10 3All protections of remote c...

Page 39: ...ll be the same after the air conditioner running under economic mode after 2 hours and during the next time the set temp do not change The total time is 7 hours after 7 hours the unit stops 11 12 Auto restart function In case of a sudden power failure this function automatically sets the unit to previous settings before the power failure when power returns 11 13 Turbo mode In cooling mode when pre...

Page 40: ... 14A 14A 14A 18A 18A I5MIN 20A 20A 20A 20A 24A 24A IFAN 22A 22A 22A 22A 26A 26A IRESTORE IDEFROST TE1 25 25 25 TE2 32 32 32 TE3 30 30 30 TE4 20 20 20 TE5 2 2 2 2 2 2 TE6 12 12 12 12 12 12 TE7 63 63 63 TE8 57 57 57 TE9 50 50 50 ANGLCOOL 67 67 67 67 67 67 ANGLHEAT 93 93 93 ANGLOFF 130 130 130 130 130 130 THDEFROST TMDEFROST TLDEFROST ...

Page 41: ... TIMER is set ON OFF OPERATION indicator TIMER indicator TEMPERATURE indicator 5 Signal receptor 13 2 Troubleshooting For models adopting electrical function Failure phenomenon Operation lamp Timer lamp Defrosting lamp Auto lamp Over current protection of the compressor occurs 4 times Indoor room temp sensor is open circuit or short circuit X X X Temp sensor on indoor evaporator is open circuit or...

Page 42: ...he indoor temp low than 10 C o Yes No Checkthe solenoid coil of reverse valve C heckthe over c urrent protector of c ompressor Replace the mainPCB board Recycle the refrige rant and recharge R eplace the re verse v alve Check the position and wiring of tem p sensor all of the m If wrong the unit w ill result in current prote ction not tem p C heck the soft starter mould Check the soft starter m ou...

Page 43: ...lace the display board Yes No Replace the display board Yes Yes Does the unit run in Forced Cool m ode Abnormaln oise from the indoor unit Does it happen in Fan Only mode Yes No Does it happ en with auto swing Check the swing motor Yes Check the swing louver Check the fan motor No Check the cross flow fan Replace the bear Does it just happen in the beginning of cooling or heating mode It is becaus...

Page 44: ... internal while running Compressor failure Replace the compressor if sounds coming from inner of the compressor Copper tubing Remove the cabinet and carefully rearrange tubing not to contact cabinet compressor Display board or indoor PCB failure Replace the display board If it is still false replace the PCB Battery failure Check the voltage of battery Replace batteries if the voltage is lower than...

Page 45: ...oard and replace the board if not within 10 of manufacturer s rating Replace the motor if the speed is not within 10 of manufacturer s rating but not because of the capacitor For electrical function 2 3 models Check the fan capacitor in indoor electric box for some models the capacitor is on main PCB and replace the capacitor or main PCB if not within 10 of manufacturer s rating Replace the motor ...

Page 46: ...ng mode will not perform Replace the reverse valve after checking the reason Water drainage failure Check the drainage pipe and repair if failure The indoor unit is incorrect installed Correct the installation if not correct Drainage pipe blocked Correct it The humidity in room is too high It s normal if the humidity in the room is over 85 Wiring failure Check wiring Correct if wrong wiring or loo...

Page 47: ...39 25 10 52 3 1918 1 37 1988 26 9 5507 53 3 0707 0 35 2024 27 9 1245 54 2 959 1 33 3269 28 8 7198 55 2 8442 2 31 5635 29 8 3357 56 2 7382 3 29 9058 30 7 9708 57 2 6368 4 28 3459 31 7 6241 58 2 5397 5 26 8778 32 7 2946 59 2 4468 6 25 4954 33 6 9814 60 2 3577 7 24 1932 34 6 6835 61 2 2725 8 22 5662 35 6 4002 62 2 1907 9 21 8094 36 6 1306 63 2 1124 10 20 7184 37 5 8736 64 2 0373 11 19 6891 38 5 6296 ...

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