1. DL manuals
  2. Samsung
  3. Air Conditioner
  4. ACH1800E
  5. Service Manual

Samsung ACH1800E Service Manual

Other manuals for ACH1800E: Owner's Instructions Manual, Technical Manual

Summary of ACH1800E

  • Page 1

    Air conditioner contents 1. Precautions 2. Product specifications 3. Operating instructions 4. Installation 5. Disassembly and reassembly 6. Troubleshooting 7. Exploded views and parts list 8. Block diagrams 9. Pcb diagrams 10. Schematic diagrams 11. Wiring diagrams service manual cassette type air ...

  • Page 2: 1. Precautions

    1. Precautions samsung electronics 1-1 1. Warning: prior to repair, disconnect the power cord from the circuit breaker. 2. Use proper parts: use only exact replacement parts. (also, we recommend replacing parts rather than repairing them.) 3. Use the proper tools: use the proper tools and test equip...

  • Page 3: Memo

    1-2 samsung electronics memo 00152-preca-2 2/1/01 2:59 pm page 1-2.

  • Page 4: 2. Product Specifications

    Indoor unit outdoor unit cooling heating cooling heating cooling heating cooling heating fan speed air circulation noise level (sound pressure) heat exchanger fan dimensions weight dimensions weight fan speed h.H hi med low h.H hi med low hi med low type row x stages x fin pitch type motor output h ...

  • Page 5

    Indoor unit outdoor unit air circulation (hi) sound pressure level fan compressor heat exchanger refrigerant dimensions weight indoor unit outdoor unit pipe o.D. Size connection method between type motor output type model motor output protection type row x stages x fin pitch face area control (r22)c...

  • Page 6

    2-2 dimensions 2-2-1 indoor unit samsung electronics 2-3 • indoor unit dimensions (ich1800e/ich2400e/ch18za/ch24za/ch18ca/ch24ca) drain tube outlet 200 145 126 699 (space of suspension bolts) 290 260 25 840 (outer dimensions) 880 (cutting dimension of ceiling) 146 156 water supply intake 950 (dimens...

  • Page 7

    2-4 samsung electronics • indoor unit dimensions (ich3600g/ich4400g/ch36za/ch44za/ch36ca/ch44ca) drain tube outlet 258 145 126 699 (space of suspension bolts) 290 260 25 840 (outer dimensions) 880 (cutting dimension of ceiling) 146 156 water supply intake 950 (dimensions of front panel) 262 288 168 ...

  • Page 8

    2-2-2 outdoor unit samsung electronics 2-5 • outdoor unit dimensions (ubh2400e/ch24zax/ch24cax) (front view) (rear view) 310 638 660 880 • outdoor unit dimensions (ubh1800e/ch18zax/ch18cax) (front view) (rear view) 320 638 582 787 00152-pspec-4 2/1/01 1:54 pm page 2-5.

  • Page 9

    2-6 samsung electronics ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;; b a 1420 930 385 a 840mm b 415mm input bolt ...

  • Page 10

    2-7 2-2-3 remote control samsung electronics • wired remote controller-buttons and display • wireless remote controller-buttons and display 00152-pspec-4 2/1/01 1:54 pm page 2-7.

  • Page 11

    Samsung electronics product specifications 2-8 • centralized controller 00152-pspec-4 2/1/01 1:54 pm page 2-8.

  • Page 12: 3. Operating Instructions

    Samsung electronics 3-1 3. Operating instructions 3-1 display on indoor unit timer indicator on/off button on/off indicator removing frost indicator remote control sensor filter sign indicator 00152-oiain-5 2/1/01 1:55 pm page 3-1.

  • Page 13

    3-2 samsung electronics 3-2 name & functions in remote control each time you press this button, fan speed is changed in the following order. When the indicator appeard on the remocon screen, cleaning the air conditioner filter. After that, press this button. Filter sign the on timer enables you to s...

  • Page 14

    Samsung electronics 3-3 each time you press this button, fan speed is changed in the following order. When the indicator appeard on the remoconscreen, cleaning the air conditioner filter. After that, press the this button. Filter sign the on timer enables you to switch on the air conditioner automat...

  • Page 15

    3-3 control system diagram 3-4 samsung electronics operation mode receive & display unit on/off key * automatic operation wireless remote controller * start/stop, operation mode select, wind volume select, temperature control, filter reset, reserved operation, up and down operation(cassette), timer ...

  • Page 16

    Samsung electronics 3-5 operating instructions and installation wind volume select mode manual 3 steps breeze, weak, strong (available at cooling, heating, blowing) wind flow select mode up and down rotation available by wire and wireless remote controller and operated only for rotation/stop (casset...

  • Page 17

    3-4 micro computer block diagram (cassette) - indoor 3-6 samsung electronics 00152-oiain-5 2/1/01 1:55 pm page 3-6.

  • Page 18

    3-5 micro computer block diagram - outdoor samsung electronics 3-7 00152-oiain-5 2/1/01 1:56 pm page 3-7.

  • Page 19: Memo

    3-8 samsung electronics memo 00152-oiain-5 2/1/01 1:56 pm page 3-8.

  • Page 20: 4. Installation

    4. Installation 4-1-1 name and function of each part for the wired remote controller samsung electronics 4-1 • start and stop of operation - to toggle the operation on and off. • when making the reservation - the reservation time can be set or canceled when pushing the timer set/ cancel button after...

  • Page 21

    Samsung electronics 4-2 installation 4-1-2 name and function of each part for the wireless remote controller • start and stop of operation - to toggle the operation on and off. • when making the reservation - the reservation time can be set or canceled when pushing the timer set/ cancel button after...

  • Page 22

    4-3 samsung electronics 4-3 installation 4-1-3 appearance and function wireless receiving board 4-1-4 opeartion specification of wireless receiving board 4-1-5 wireless receiving board and outdoor unit pcb display specification when error occurs part name defrost lamp filter sign lamp timer lamp on-...

  • Page 23

    4-4 samsung electronics installation 4-1-6 example of remote controller control 1 chamber wireless remote controller single operation and 1 chamber wireless remote controller + wired remote controller combination control 4-1-7 pcb option and switch(ds01) setting of wired remote controller 1. Put off...

  • Page 24

    4-1-8 function comparison of wired remote controller vs wireless remote controller 4-1-9 option and dip switch setting(sw2) of ass'y main in pcb dip switch 1 2 3 4 5 option item ventilator fan drain pump float switch filter cleaning period indoor fan motor speed sw on not installed installed install...

  • Page 25

    4-2 control of the remote controller 4-2-1 chamber group control(wireless remote controller + wired remote controller system) 4-6 samsung electronics • the 16 chamber remote controller operation by wired remote controller can be simultaneously performed all for 16 chambers through setting the 16 cha...

  • Page 26

    4-7 • put on the set power installed in each chamber. 2. Setting of wired remote controller • put off the set power where the wired remote controller is installed. • put on the option switch sw2(ds01) of wired remote controller. • put on the set power where the wired remote controller is installed. ...

  • Page 27

    4-8 samsung electronics 4-2-3 operation method of wired remote controller • press the on/off button of wired remote controller to be on. At the time, the set installed from a chamber to f chamber is getting on in order with the interval of 2 seconds. • select the operation of auto/cooling/dehumidi-f...

  • Page 28

    4-9 caution : • unless the address of digital switch of indoor unit pcb is set to “0” in case of “a” chamber single operation, the control by the wired remote controller is disabled. • the power of set shall be put on again after the resetting of wired remote controller option so that the the set op...

  • Page 29

    Samsung electronics caution : • test operation is disabled when the chamber “a” is on after initialization of wired remote controller. • the communication time between wired remote controller and indoor unit is required for 2 seconds. If any one of set is on, be sure to put it off by pressing the on...

  • Page 30

    4-11 button name all1 all0 "01" ~ "16" function • to put on all 16 chambers' set. • to put off all 16 chambers' set. • to put on/off set assigned with the number. • since the centralized controller has the relay equipment, the option mounted on the indoor unit, the on/off can be set for 16 chambers ...

  • Page 31

    4-3-2 example of the centralized control system configuration 4-3-3 chambers cnetralized control system connection diagram 4-12 samsung electronics installation indoor unit "a" chamber transmitter wireless receiving board wireless remote controller outdoor unit wired remote controller centralized co...

  • Page 32

    4-13 4-3-4 centralized control operation method 1. Setting of indoor unit • put off the set to be installed. • put off the power of the centralized controller. • mount the transmitter, the option item on the indoor unit set terminal board. • adjust the address of digital switch of transmitter mounte...

  • Page 33

    4-3-5 operation specification of wireless and wired remote controller while using the centralized controller. 4-14 samsung electronics installation level 0 level 1 level 2 slave wired remote controller has not the priority of control over the wireless. D area : to be operated by the final input of c...

  • Page 34

    Select an area for installation that is suitable to the customer’s needs. 4-4-1 indoor unit 1. Make sure that you install the indoor unit in an area providing good ventilation. It must not be blocked by an obstacle affecting the airflow near the air inlet or the air outlet. 2. Make sure that you ins...

  • Page 35

    4-16 samsung electronics 4-4-2 outdoor unit 1. Make sure that you install the outdoor unit in an area not exposed to the rain or direct sunlight. (install a separate sunblind if exposed to direct sunlight.) 2. Make sure that you install the outdoor unit in an area, not amplifying noise or vibration,...

  • Page 36

    Samsung electronics 4-17 12. You should leave spacing around the outdoor unit at least according to the figure for easy installation, service and ventilation. 13. Install the outdoor unit on a rigid base. 14. Fasten the outdoor unit to the base by using bolts or nuts. 15. In case of hanging the outd...

  • Page 37

    Samsung electronics 4-4-3. Air conditioner and accessories the following accessories are supplied with the air conditioner. The quantities are indicated in parantheses. Basic accessories optional accessories 4-18 installation owner’s instructions(1) owner's instructions split-type room air con ditio...

  • Page 38

    4-5 installation diagram of indoor unit and outdoor unit 4-5-1 piping, drain hose direction samsung electronics 4-19 respect the clearances and maximum lengths indicated in the diagram below when installing the unit. ;;;;;;;; ;;;;;;;; ;;;;;;;; ;;;;;;;; ;;;;;;;; ;;;;;;;; “h”metres maximum ;; ;; ; ; ;...

  • Page 39

    Respect the clearances and maximum lengths indicated in the diagram below when installing the unit. ;;;;;;;; ;;;;;;;; ;;;;;;;; ;;;;;;;; ;;;;;;;; ;;;;;;;; ;;;;;;;; “h”metres maximum 10cm 10cm 15cm liquid refrigerant tube gas refrigerant tube drain hose 35cm model ✴✴ 36 ✴✴ ✴✴ 44 ✴✴ l 50 h 25 ✴ the app...

  • Page 40

    Samsung electronics 4-21 4-5-2 preparing the area for installation preparing the area for installation of indoor unit 1. Measure the distance between ceiling and ceiling wall. 2. Place the pattern sheet on the ceiling. 3. Cut the ceiling to install the indoor unit by attaching the pattern sheet onto...

  • Page 41

    9. Adjust the unit to the appropriate position considering the installation area for the front panel. 9-1 place the pattern sheet on the indoor unit. 9-2 adjust a space between the ceiling and the indoor unit by using the gauge of dimensions. 9-3 fix the indoor unit securely after adjusting level of...

  • Page 42

    Wiring diagram cable specifications the following electrical characteristics must be respected. Model power sub switch fuse min. Size of electric wires from/to the indoor/outdoor unit size of electric input wires 20m or less 50m or less note ach1800e/2400e, ch18za/24za, ch18ca/24ca 1Ø - 220v-240v~, ...

  • Page 43

    Wiring diagram cable specifications the following electrical characteristics must be respected. 4-24 installation samsung electronics model power sub switch fuse min. Size of electric wires from/to the indoor/outdoor unit size of electric input wires 20m or less 50m or less note ach3600g/4400g, ch36...

  • Page 44

    4-25 samsung electronics installation 4-5-4 connecting the cables to the outdoor unit two electric cables must be connected to the outdoor unit. • the connection cord connecting the indoor unit to the outdoor unit • the power cable connecting the auxiliary circuit breaker to the outdoor unit 1. Remo...

  • Page 45

    Samsung electronics 4-26 installation two electric cables must be connected to the outdoor unit. • the connection cord connecting the indoor unit to the outdoor unit • the power cable connecting the auxiliary circuit breaker to the outdoor unit 1. Remove the terminal board cover on the side of the o...

  • Page 46

    Samsung electronics installation 4-27 4-5-5 checking correct grounding if the power distribution circuit does not have an earth or the ground does not comply with specifications, an grounding electrode must be installed. The corresponding accessories are not supplied with the air conditioner. 1. Sel...

  • Page 47

    Samsung electronics 4-28 installation 2. Install the drain hose so that its length can be as short as possible. Internal diameter of the drain hose should be the same or slightly bigger than the external diameter. • inner diameter of the drain hose note : ◆ give a slightly slant to the drain hose fo...

  • Page 48

    Samsung electronics installation 4-29 testing the drainage you should test the drainage after completing the installation. Prepare a little water about 2.0 liter. 1. Remove two screws on the cover drain pump and pull out the cover. 2. Pour water into the indoor unit as shown in figure. Note : ◆ if y...

  • Page 49

    Samsung electronics 4-30 installation 2. Must use insulator which is thick enough to cover more than 10mm the refrigerant tube to protect the condensate water on the outside of pipe falling onto the floor and the efficiency of the unit will be better. 3. Cut off any excess foam insulation. 4. Be sur...

  • Page 50

    Samsung electronics installation 4-31 4. Slide a flare nut on to the pipe and modify the flare. Outer diameter(d) depth (a) 1 9.52 mm (3/8") 1.8 mm 15.88 mm (5/8") 2.2 mm 19.05 mm (3/4") 2.2 mm 5. Check that the flaring is correct, referring to the illustrations below for examples of incorrect flari...

  • Page 51

    Samsung electronics 4-32 installation 4-5-10 fixing the unit in position the outdoor unit must be installed on a rigid and stable base to avoid any increase in the noise level and vibration, particularly if the outdoor unit is to be installed close to a neighbour. If it is to be installed in a locat...

  • Page 52

    Samsung electronics 4-33 • use the vacuum pump to remove n2 gas or air inside the indoor unit and pipes. Installation 1. Tighten all pipe connections (a, b, c, d) to prevent any leakage. 3. Remove the cap on the opposite side of the suction tube connection (a) and connect a hose from the pressure gu...

  • Page 53

    4-34 samsung electronics 4-5-11 refrigerant refill procedure 1. Refrigerant refill •refill the air-conditioner with refrigerant when the refrigerant has leaked during the installing or using installation 2. Connect the tank to refill with refrigerant 3. Set the unit to cool operation mode. 6. Stop o...

  • Page 54

    Samsung electronics 4-35 2. Refrigerant adjustment (supplement) adding refrigerant refrigerant must be added if the piping measures more than 5 metres in length (maximum of “a” metres). The quantity of additional refrigerant is variable according to the installation situation. Thus, make sure the ou...

  • Page 55

    4-36 samsung electronics installation 4-5-13 performing leak tests before completing the installation (insulation of the hose and piping), you must check that there are no gas leaks. To check for gas leaks on the... Then, using a leak detector, check the... Indoor unit flare nuts at the end of secti...

  • Page 56

    Samsung electronics installation 4-37 4-5-14 installing the front panel 1. Open the electrical component box cover removing the screws. 2. Connect the cables of the front panel to the pcb as shown in figure. 3. Close the electrical component box cover and secure the screws. 4. Install the front pane...

  • Page 57

    Samsung electronics 4-38 installation 4-5-15 setting up option switches important : before setting up the option switches, always make sure that you have turned off the main power. Main pcb in the indoor unit note : ◆ make sure that the no.2 and no.3 switches are at “on” position. 0 1 2 3 4 5 6 7 on...

  • Page 58

    Samsung electronics installation 4-39 4-5-16 setting up option switches (cont.) sub pcb in the indoor unit sub pcb in the indoor unit unit a (address 0) unit b (address 1) unit c (address 2) cn20 connector cn20 connector remove the cn20 connector in the sub pcb, if necessary, referring to the table ...

  • Page 59

    Samsung electronics 4-40 installation centralized controller transmitter original position of option switches dip switch(ds01) off switch position off off off off off off off on off on off the air conditioner is operated by the controller adjusted last among the wired remote controller, wireless rem...

  • Page 60

    Samsung electronics installation 4-41 4-5-17 wired remote controller installation (optional) accessories 1. Disassemble the wired remote controller by using two grooves on the top of it. 2. Secure the rear cover of the wired remote controller on the wall with two screws. 3. Connect the r1, r2 and r3...

  • Page 61

    Samsung electronics 4-42 installation 4-5-18 centralized controller installation (optional) accessories 1. Open the centralized controller cover by using two grooves on the top of it. 2. Secure the rear cover of the centralized controller on the wall with two screws. 3. Secure the transmitter with f...

  • Page 62

    Samsung electronics installation 4-43 6. Connect the power cables. Note : cable specifications 7. Reassemble the centralized controller. 4-2-19 receiver & display unit installation (optional) accessories in case of using the wireless remote controller, you must install the receiver & display unit to...

  • Page 63

    Samsung electronics 4-44 installation 4-5-20 bio-pure filter installation (optional) the air conditioner can be fitted with a bio-pure filter to remove minute dust particles. The service life of the filter is approximately three months depending on the time during which the air conditioner is used. ...

  • Page 64

    4-5-21. Controlling a group * you should adjust the option switches in the electrical component box or on the pcb of the wired remote controller. * before setting up the option switches, always make sure that you have turned off the main power. * after adjusting the options, you should supply the po...

  • Page 65

    Samsung electronics 4-46 installation with centralized controller a user can turn on/off up to sixteen air conditioners by using the centralized controller. In this case, the user can turn on/off all air conditioners or a specific air conditioner connected with the centralized controller. And each a...

  • Page 66

    4-5-22. Checking and testing operations to complete the installation, perform the following checks and tests to ensure that the air conditioner is operating correctly. Review all the following elements in the installation: ◆ piping connection tightness to detect any gas leakages ◆ connecting wiring ...

  • Page 67

    Samsung electronics 4-48 installation 4-5-23. Troubleshooting wired remote controller if the error occurs, and the error code are displayed on the wired remote controller. The error code blinks for 5 seconds and it disappears. If you would like to see the error code after disappearing it, press the ...

  • Page 68

    Wireless remote controller if the error occurs, the indicators on the receiver & display unit displays the error. Samsung electronics installation 4-49 meaning of error code checking area ◆ indoor unit thermistor sensor ◆ pcb of the indoor unit meaning indicators indoor unit thermistor sensor error ...

  • Page 69: Memo

    4-50 samsung electronics memo 00152-oiain-5 2/1/01 1:57 pm page 4-50

  • Page 70

    5. Disassembly and reassembly samsung electronics 5-1 stop operation of the air conditioner and remove the power cord before repairing the unit. Indoor unit no. Part name procedures picture ! Front grille & filter 1. Open the front grille by pushing the tabs on the grille. Important you must give at...

  • Page 71

    5-2 samsung electronics disassembly and reassembly no. Part name procedures picture 4. Slowly loosen the four bolts holding the panel to the assembly. 5. Open the electrical component box cover removing the screws. (3ea) 6. Disconnect the two cables between the assembly and the panel. - stepping mot...

  • Page 72

    Samsung electronics 5-3 disassembly and reassembly no. Part name procedures picture @ electronic part 7. Separate the front panel using two hooks on the both sides of the indoor unit. Do ! -1, ! -2, ! -3 and ! -4 above 1. Remove the screws(6ea) on the electrical component box and remove the cover pl...

  • Page 73

    5-4 samsung electronics disassembly and reassembly no. Part name procedures picture # method 1 fan and motor 3. Disconnect the other end of the cable to the outdoor unit through the ceiling & the hole on the wall between the control box and the assembly. Do ! Above 1. Disconnect fan motor wire conne...

  • Page 74

    Samsung electronics 5-5 disassembly and reassembly no. Part name procedures picture fan and motor 3. Disconnect float switch wire connected to terminal board (f1, f2). 4. Disconnect all connectors connected to pcb. 5. Remove pcb’s from assy case pcb. 6. Remove the screws(9ea) for disconnection of be...

  • Page 75

    5-6 samsung electronics disassembly and reassembly no. Part name procedures picture fan and motor pump 00152-darea-6 2/1/01 1:58 pm page 5-6.

  • Page 76

    Samsung electronics 5-7 disassembly and reassembly no. Part name procedures picture pump 00152-darea-6 2/1/01 1:59 pm page 5-7.

  • Page 77

    5-8 samsung electronics disassembly and reassembly no. Part name procedures picture fan and motor 7. Seperate bell mouth and box ass’y from cushion drain. 8. Loosen the nut and separate the assy holder fan. 9. Lift down carefully the ass'y fan. 00152-darea-6 2/1/01 1:59 pm page 5-8.

  • Page 78

    Samsung electronics 5-9 disassembly and reassembly no. Part name procedures picture fan and motor 10.Separate the motor connector wire and separate the wire holder fixed the bottom floor. 11.Remove the screw fixed onto the bracket wire fixed on the bottom of product and remove screw fixed noto earth...

  • Page 79

    5-10 samsung electronics disassembly and reassembly no. Part name procedures picture $ fan and motor method 2. Pump ❈ do # -1, 2, 3 above 1. For separation of ass'y cushion drain from the main body ! Cabinet guide a (2ea) @ cabinet guide b (1ea) # remove each cabinet power cord. $ remove the obstacl...

  • Page 80

    Samsung electronics 5-11 disassembly and reassembly no. Part name procedures picture pump 2. For the separation of ass'y cushion drain form the main body, remove the fixing screw of bracket at each corner of cushion drain. 3. Take out the cap drain socket inserted in the ass'y drain cushion to remov...

  • Page 81

    5-12 samsung electronics disassembly and reassembly no. Part name procedures picture % pump heat exchanger 6. Separate the hose drain inserted in the outlet of pump drain. 7. Separate from the bkt pump the pump drain separated from the main body from the bkt pump. ❈ do $ -1 ~ $ -4 1. Separate the co...

  • Page 82

    Samsung electronics 5-13 disassembly and reassembly no. Part name procedures picture 3. Separate the holder evap (2 ea) fixing the heat exchanger to the base of main body. 4. Separate holder guide evap (4 ea). 5. Lift up the heat exchanger from the main body. 00152-darea-6 2/1/01 1:59 pm page 5-13.

  • Page 83

    5-14 samsung electronics disassembly and reassembly no. Part name procedures picture ^ front panel -cover front ❈ do ! Above push 3 cover front fixing screws inside the front panel and snap fixing part to separate the cover front. 00152-darea-6 2/1/01 1:59 pm page 5-14.

  • Page 84

    Samsung electronics 5-15 disassembly and reassembly no. Part name procedures picture & front panel - stepping motor ❈ do ! Above 1. Loosen each one of fixing screw at the corner part, ! Cushion side-a and cushion side-b inside the front panel, and then lift it up. 2. Remove ! The screw of housing mo...

  • Page 85

    5-16 samsung electronics disassembly and reassembly no. Part name procedures picture * ( front panel - cushion-a front panel - bio-pure filter (optional) ❈ do ! Above remove two screws fixing cushion-a inside the front and lift it up. ❈ do 1- ! , 1- @ and 1- # above 1. Separate the bio pure filter f...

  • Page 86

    Samsung electronics 5-17 disassembly and reassembly no. Part name procedures picture ! @ cabinet fan motor & propeller fan 1) turn off the unit and remove the power cable 2) remove the top cover. 3) remove the control box cover. 4) unplug the ass'y cable. 5) remove the cabi-side. 6) remove the cabi-...

  • Page 87

    5-18 samsung electronics disassembly and reassembly no. Part name procedures picture ! @ outdoor unit control box 1) packaged air conditioner outdoor unit 2) the binders of the front side should be separated. 3) the flank and the binders should be separated from each other. 1) connect distributed wi...

  • Page 88: 6. Trouble Shooting

    6. Trouble shooting samsung electronics 6-1 ■ trouble shooting by outdoor unit error code ■ trouble shooting by indoor unit receive board error code e1 e5 e6 e9 ea ec ed el error description indoor unit room thermistor error indoor unit pipe thermistor error outdoor unit thermistor error float switc...

  • Page 89

    Samsung electronics ■ ec01 : trouble on the thermistor related part of indoor unit. • ec01 : trouble on the room thermistor related part of indoor unit. - e1 of outdoor unit pcb 7-segment - reservation lamp of wireless receiving board is flickering with 1 hz. - action items when “*1” display s on th...

  • Page 90

    Samsung electronics 6-3 trouble shooting ■ ec03 : when the trouble is found on the part related to the outdoor unit thermistor. - e6 of outdoor unit pcb 7-segment - operation lamp and filter lamp of wireless receiving board are flickering with 1hz. - action items when “*6” displays on the wired remo...

  • Page 91

    Samsung electronics ■ ec04 : when the trouble is found on the drain pump and float switch installed on the indoor unit. Ec01 : trouble on the thermistor related part of indoor unit. - e9 of 7-segment of outdoor unit pcb - reservation lamp of wireless receiving board and filter lamp are flickering wi...

  • Page 92

    6-5 ■ ec05 : when the trouble is found in the communication related part between indoor unit and outdoor unit. - ea of 7-segment of outdoor unit pcb. - reservation lamp and filter lamp of wireless receiving board is flickering with 1 hz. - action item when “*a” displays on the wired remote controlle...

  • Page 93

    Samsung electronics ■ ec06 : when the trouble is found in the communication related part between indoor unit and wired remote controller. (during single operation, not group control) - ec of 7-segment of outdoor unit pcb. - wireless receiving board lamp and reservation lamp is flickering with 1hz. -...

  • Page 94

    ■ ec07 : when the trouble is found in the communication related part between outdoor unit pipe thermistor. - ed of 7-segment of outdoor unit pcb. - reservation lamp and filter lamp of wireless receiving board is flickering with 1hz. - action item when “d” displays on the wired remote controller. Sam...

  • Page 95

    Samsung electronics ■ ec08 : when the reverse of three phase power is found. 6-8 trouble shooting check point : - con check cn76 to connect correctly. - check ic51, ic52, ic53 to connect correctly. Yes yes no no yes insert correctly check the mis-insertion of cn76? Check the pin no 4 of ic51, ic52, ...

  • Page 96

    6-9 ■ ec09 : when the trouble is found on the part related to the wireless receiving board of the indoor unit. Samsung electronics trouble shooting check point : - defect of wireless remote controller pcb - defect of wireless remote controller receiving board pcb - indoor unit pcb defect yes yes yes...

  • Page 97

    ■ ec10 : when the trouble is found on the part related to the wired remote controller. (single operation) 6-10 samsung electronics trouble shooting check point : - defect of communication line between indoor unit and wired remote controller. - output of indoor unit micom - defect of wired remote con...

  • Page 98

    ■ ec11 : when the trouble is found on the part related to the fan motor of indoor unit. Samsung electronics 6-11 trouble shooting check point : - defect of pcb relay of indoor unit. - output of indoor unit micom - indoor fan motor defect - defect of pcb ic06 of indoor unit no check the replay part a...

  • Page 99

    Samsung electronics ■ ec12 : when the trouble is found on the part related to the fan motor of outdoor unit. 6-12 trouble shooting check point : - outdoor unit pcb relay defect - output of outdoor unit micom - outdoor unit fan motor defect - defect of ic07 of outdoor unit pcb no yes yes no no no no ...

  • Page 100

    6-13 ■ ec13 : when the trouble is found on the part related to comp of outdoor unit. Samsung electronics trouble shooting check point : - indoor unit pcb relay defect - output of indoor unit micom - comp defect - magnet switch defect no check and replace the related part yes yes is the power source ...

  • Page 101

    Samsung electronics ■ ec14 : when the trouble is found on the part related to the up & down swing motor of indoor unit (cassette model) 6-14 trouble shooting check point : - wire short between indoor unit pcb up & down swing motor connector or bad contact. - output of indoor unit micom - defect of u...

  • Page 102

    6-15 samsung electronics ■ ec15 : when the trouble is found on the part related to drain pump of indoor unit. Trouble shooting check point : - indoor unit pcb ↔ drain pump connector wire, indoor unit micom no.6 pin output, ic06 no.6 pin output. - drain pump, ry72, dc12v power, ac220~240v 50hz power,...

  • Page 103

    Samsung electronics ■ ec16 : when the trouble is found on the part related to float switch of indoor unit. 6-16 trouble shooting check and replace ic02 no yes yes put on and then reset the power normal replace indoor unit pcb no no no are no.2 and 3 of option swithch of indoor unit on? Are no.2 and ...

  • Page 104

    6-17 ■ ec17 : when the trouble is found on the part related to ventilator of indoor unit. Check and replace ic01, ic02 no yes yes put off and then reset the power replace micom check and replace ic06 check and replace ry77 replace indoor unit pcb no no no no no is the option switch 1 of indoor unit ...

  • Page 105

    Samsung electronics ■ ec18 : when the trouble is found on the part related to power system of indoor unit. Check the connection wire of indoor and outdoor and then replace indoor unit pcb no yes yes yes yes yes replace fuse no no no no no trouble on f101, f102, f701? Is the voltage of pin no.1 and 3...

  • Page 106

    6-19 6-19 ■ ec19 : when the trouble is found on the part related to power system of output unit. Check power code and replace pcb no yes yes yes yes yes replace fuse no no no no no trouble on f101, f701? Is the voltage between cn71 pin no. 3 and tb1 ac220v~ac24v? Check to confirm whether the wire is...

  • Page 107

    Samsung electronics samsung electronics ■ ec20 : when the centralized controller lamp is flickering. (during centralized control) set again in order to avoid the duplicated address no yes no yes yes check and replace the communication line yes no no is the communication line of set short circuited? ...

  • Page 108: Memo

    Samsung electronics 6-21 memo 00152-tshoo-9 2/1/01 2:01 pm page 6-21.

  • Page 109

    Samsung electronics 7. Exploded views and part list 7-1 indoor unit 7-1 13 17 16 17 18 21 25 28 29 23 27 26 24 30 19 20 7 6 2 4 8 1 3 9 10 43 5 12 11 15 14 22 34 36 31 38 32 33 37 39 41 40 35 19 42 00152-evapl-10 2/1/01 2:02 pm page 2.

  • Page 110

    7-2 samsung electronics exploded views and parts list 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 db63-00058a db63-00050a db63-00049a db90-00127a db90-00128a db65-00029b db65-00029d db65-00029a db61-40291b pd-dh2400-01 pd-dh...

  • Page 111

    Samsung electronics 7-3 exploded views and part list 7-2 panel front disassembly diagram • panel front 17-4 17-3 17-2 17-1 10 5 6 8 9 2 12 4 7 1 13 14 11 15 3 16 17 00152-evapl-10 2/1/01 2:02 pm page 4.

  • Page 112

    7-4 samsung electronics exploded views and parts list 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 17-1 17-2 17-3 17-4 18 db64-00051a db69-00091a db69-00092a db69-00093a db69-00094a db63-00041a db90-00096b db66-00029a db61-00107a db61-00108a db39-00078a db39-00079a db31-10129c db63-00051a db63-00054a d...

  • Page 113

    Samsung electronics 7-5 exploded views and part list 7-3 outdoor unit • 18k 13 12-2 12 12-1 13-3 7 6 11 1 2 4 3 5 16 8 10 9 13-1 13 13-2 15-1 15-4 15 15-6 15-5 15-3 15-2 15-7 14-3 14 14-1 14-2 00152-evapl-10 2/1/01 2:02 pm page 6.

  • Page 114

    7-6 samsung electronics exploded views and parts list ■ outdoor unit parts list (18k) no 1 2 3 4 5 6 7 8 9 10 11 12 12-1 12-2 13 13-1 13-2 13-3 14 14-1 14-2 14-3 15 15-1 15-2 15-3 15-4 15-5 15-6 15-7 16 code no db90-10673c db90-20160e db67-50063a db60-30020a db31-00056a db61-20008c db94-50034b db96-...

  • Page 115

    Exploded views and parts list samsung electronics 7-7 • 24k 8 16 7 6 11 1 4 3 2 5 10 9 13-2 13 13-1 17 17-1 13-1 15-1 15 15-4 15-5 15-6 15-3 15-2 14-1 14 14-3 14-4 15-7 12-2 13 12 13-3 12-1 14-2 00152-evapl-10 2/1/01 2:02 pm page 8.

  • Page 116

    7-8 samsung electronics exploded views and parts list ■ outdoor unit parts list (24k) no 1 2 3 4 5 6 7 8 9 10 11 12 12-1 12-2 13 13-1 13-2 13-3 14 14-1 14-2 14-3 15 15-1 15-2 15-3 15-4 15-5 15-6 15-7 16 17 17-1 code no db90 - 10634l db90 - 20157l db67 - 50074a - db31 - 00027a db95 - 20147a db94 - 50...

  • Page 117

    2 3 4 5 6 7 21 20 18 23 19 9 22 1 8 8-2 8-4 25 8-3 13 8-1 15 26 10 11-2 12-3 11 14 11-1 24 12 exploded views and parts list samsung electronics 7-9 • 36k/44k 00152-evapl-10 2/1/01 2:02 pm page 10

  • Page 118

    7-10 samsung electronics exploded views and parts list no 1 2 3 4 5 6 7 8 8-1 8-2 8-3 8-4 9 10 11 11-1 11-2 12 12-1 12-2 12-3 13 14 15 16 17 18 19 20 21 22 23 24 25 26 code no db90-10565a db63-30028c db67-50067a db31-00060a db31-00060b db31-00060c db31-00060d db90-30028e db61-40088a db93-00317a db31...

  • Page 119: Memo

    7-11 samsung electronics memo 00152-evapl-10 2/1/01 2:02 pm page 12.

  • Page 120: 8. Block Diagrams

    8. Block diagrams 8-1 refrigerating cycle block diagram samsung electronics 8-1 •model : ach1800e, ach2400e, ch18za, ch24za •model : ch18ca, ch24ca heat exchanger (evaporator) heat exchanger (condenser) gas side muffler high pressure switch compressor accumulator 4-way valve reservior capallary tube...

  • Page 121

    Indoor unit outdoor unit *allowable pipe length : max. 50m *allowable drop distance : max. 25m *amount of refilling per extension length of 1m; when extending the pipe length by more than 5m, 50gr(35gr: outdoor unit is higher than indoor unit) of r-22 refrigerant should be refilled per extension len...

  • Page 122

    8-3 samsung electronics outdoor unit modem communicating circuit ass'y pannel pcb transmitter wired communicating circuit wired remote controller ass'y main pcb ventilator drain pump float switch indoor/outdoor communicating circuit part left and right swing motor indoor fan motor indoor pipe temper...

  • Page 123

    8-4 samsung electronics 8-3 micro computer block diagram - outdoor compressor 4-way valve high pressure switch outdoor fan motor outdoor pipe temperature detector indoor/outdoor communicating circuit indoor unit reset part outdoor temperature detector load driving part micom ass'y main pcb dc power ...

  • Page 124

    8-4 thermistor samsung electronics 8-5 thmperature [˚c] 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 thermistor [kohm] 2.229 2.296 2.365 2.437 2.512 2.589 2.669 2.752 2.838 2.928 3.021 3.116 3.216 3.319 3.426 3.537 3.652 3...

  • Page 125: Memo

    8-6 samsung electronics memo 00152-bdiag-13 2/1/01 2:03 pm page 8-6.

  • Page 126: 9. Pcb Diagrams

    9-1 9. Pcb diagrams samsung electronics 9-1 main pcb 9-1-1 indoor unit (18k/24k) 00152-pdiag-14 2/1/01 2:04 pm page 9-1.

  • Page 127

    Samsung electronics 9-2 j01, j02, j04 - j19,sw05,sw05 jump wire pi 0.6 sn t 52mm ic04 ic-mcu upd780032 ic06,ic08,ic09 ic-linear ka2657 ic07 ic-eeprom 93lc56b-i/p ic05 ic-reset ka7533 pc31,pc32,ic10 photo-coupler pc817 ic02 ic-voltage-reg ka7805 ic01 ic-voltage-reg ka7812 ic11 photo-thyristor s12md1v...

  • Page 128

    Samsung electronics 9-3 c503,c701 c-al 100uf/16v r201,r218,r501-r503,r608,r405,r406,r215 r-carbon 10k-j 1/8w r212-r214,r607,r610,r407 - - r302 r-carbon 1k-j 1/4w r203,r204,r301,r217,r216,r609 r-carbon 1k-j 1/8w r202 r-carbon 3.3k-j 1/8w r209 r-carbon 12k-j 1/8w r207 r-carbon 27k-j 1/4w r210,r208 r-c...

  • Page 129

    Samsung electronics 9-4 • indoor unit (18k/24k/36k/44k) 00152-pdiag-14 2/1/01 2:05 pm page 9-4.

  • Page 130

    Samsung electronics 9-5 j01, j02, j04 - j19,sw05,sw05 jump wire pi 0.6 sn t 52mm ic04 ic-mcu upd780032 ic06,ic08,ic09 ic-linear ka2657 ic07 ic-eeprom 93lc56b-i/p ic05 ic-reset ka7533 pc31,pc32,ic10 photo-coupler pc817 ic02 ic-voltage-reg ka7805 ic01 ic-voltage-reg ka7812 ic11 photo-thyristor s12md1v...

  • Page 131

    9-6 samsung electronics r212-r214,r607,r610,r407 - - r302 r-carbon 1k-j 1/4w r203,r204,r301,r217,r216,r609 r-carbon 1k-j 1/8w r202 r-carbon 3.3k-j 1/8w r209 r-carbon 12k-j 1/8w r207 r-carbon 27k-j 1/4w r210,r208 r-carbon 2.4k-j 1/4w r211 r-carbon 330-j 1/4w r601-r605 r-carbon 330-j 1/2w r403,r404,r6...

  • Page 132

    9-7 samsung electronics 9-1-2 outdoor unit (18k/24k) 00152-pdiag-14 2/1/01 2:05 pm page 9-7.

  • Page 133

    9-8 samsung electronics j01-j03,j05-j10,opj jump wire pi 0.6 sn t 52mm ic4 ic-mcu ks88c46 ic05-ic07 ic-linear ka2657 pc31,pc32 photo-coupler pc817 ic03 ic-reset ka7533 ic02 ic-voltage-reg ka7805 ic01 ic-voltage-reg ka7812 x501 ceramic-resonator 10mhz d101-d105,d701 diode-rectifier 1n4007 zd71 diode-...

  • Page 134

    9-9 samsung electronics • outdoor unit (18k/24k/36k/44k) 00152-pdiag-14 2/1/01 2:05 pm page 9-9.

  • Page 135

    Samsung electronics 9-10 j01-j03,j05-j10,opj jump wire pi 0.6 sn t 52mm ic4 ic-mcu ks88c46 ic05-ic07 ic-linear ka2657 pc31,pc32 photo-coupler pc817 ic03 ic-reset ka7533 ic02 ic-voltage-reg ka7805 ic01 ic-voltage-reg ka7812 x501 ceramic-resonator 10mhz d101-d105,d701 diode-rectifier 1n4007 zd71 diode...

  • Page 136

    9-11 samsung electronics j01-j03,j05-j10,opj jump wire pi 0.6 sn t 52mm ic4 ic-mcu ks88c46 ic05-ic07 ic-linear ka2657 pc31,pc32, ic51~ic53 photo-coupler pc817 ic03 ic-reset ka7533 ic02 ic-voltage-reg ka7805 ic01 ic-voltage-reg ka7812 x501 ceramic-resonator 10mhz d101-d108,d701 diode-rectifier 1n4007...

  • Page 137: Memo

    9-12 samsung electronics memo 00152-pdiag-14 2/1/01 2:05 pm page 9-12.

  • Page 138: 10. Wiring Diagrams

    10. Wiring diagrams 10-1 indoor unit • 18k/24k samsung electronics 10-1 cassette type aircondtioner 00152-wdiag-15 2/1/01 2:06 pm page 10-1.

  • Page 139

    10-2 samsung electronics • 36k/44k wiring diagrams cassette type aircondtioner 00152-wdiag-15 2/1/01 2:06 pm page 10-2.

  • Page 140

    10-2 outdoor unit • 18k/24k samsung electronics 10-3 built-in airconditioner code no : db68-00866a 00152-wdiag-15 2/1/01 2:06 pm page 10-3.

  • Page 141

    10-4 samsung electronics • 36k/44k wiring diagrams built-in airconditioner code no : db68-00866a 00152-wdiag-15 2/1/01 2:07 pm page 10-4.

  • Page 142: 11. Schematic Diagrams

    11. Schematic diagrams 11-1 wired remote controller samsung electronics 11-1 00152-sdiag-16 2/1/01 2:09 pm page 11-1.

  • Page 143

    11-2 centralized controller 11-2 samsung electronics 00152-sdiag-16 2/1/01 2:10 pm page 11-2.

  • Page 144

    11-3. Indoor unit (18k/24k) samsung electronics 11-3.

  • Page 145

    • indoor unit (36k/44k) 11-4 samsung electronics.

  • Page 146

    11-4. Outdoor unit (18/24k) samsung electronics 11-5.

  • Page 147

    • outdoor unit (36k/44k) 11-6 samsung electronics.

  • Page 148: Memo

    Samsung electronics 11-7 memo 00152-sdiag-16 2/1/01 2:10 pm page 11-3.

  • Page 149

    Update log sheet application date page part# note(cause & solution) s/bulletin# use this page to keep any special servicing information.(service bulletin, etc.) if only parts number changes, just change parts number directly on parts list. And if you need more information, please see the service bul...

  • Page 150

    Electronics samsung electronics co., ltd. Jun. 2000 printed in korea. Code no. Db81-00152a(4) © 00152–cover-1 2/1/01 1:52 pm page 1.