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Samsung AM038KXWDCH Service Manual

Other manuals for AM038KXWDCH: Service Manual
Manual is about: SYSTEM AIR CONDITIONERS OUTDOOR UNIT

Summary of AM038KXWDCH

  • Page 1

    Air conditioner contents system air conditioner outdoor unit am080/100/120/200fxwanr 6 / am300kxwanr6 am072/096/120/192hxwafr 6 / am240kxwafr6 am072/096/120/192hxwajr 6 / am240kxwajr6 am038/048/055kxwdch 6 1. Precautions 2. Product specifications 3. Disassembly and reassembly 4. Troubleshooting 5. P...

  • Page 2: Contents

    Section 0 samsung electronics 1 contents 1. Precautions .................................................................................................................................................... 1 1-1 precautions for the service ................................................................

  • Page 3: Contents

    Samsung electronics 2 section 0 contents 3. Disassembly and reassembly ...................................................................................................................40 3-1 necessary tools ..............................................................................................

  • Page 4: Contents

    Section 0 samsung electronics 3 contents 4-3-25 suction temperature sensor error (open/short) ..................................................................................109 4-3-26 liquid pipe temperature sensor error (open/short) ..................................................................

  • Page 5: Contents

    Samsung electronics 4 section 0 contents 5. Pba diagram and parts list .........................................................................................................................................165 5-1 ass'y pba main ........................................................................

  • Page 6: 1. Precautions

    Samsung electronics 1 1. Precautions 1-1 precautions for the service ouse the correct parts when changing the electric parts. – please check the labels and notices for the model name, proper voltage, and proper current for the electric parts. Ofully repair the connection for the types of harness whe...

  • Page 7

    Samsung electronics 2 precautions 1-4 precautions for handling refrigerant for air conditioner environmental cautions: air pollution due to gas release osafety cautions if liquid gas is released, then body parts that come into contact with it may experience frostbite/blister/numbness. If a large amo...

  • Page 8: 2. Product Specifications

    Samsung electronics 3 2. Product specifications 2-1 feature of product 2-1-1 feature more efficient, more eco-friendly the dvm s water air conditioning system saves money and the environment, while providing a powerful performance. Its innovative dual inverter compres- sor with a high efficiency vap...

  • Page 9

    Samsung electronics 4 product specifications 2-1-2 changes in comparison to basic model (am300kxwanr) 2-1-2 changes in comparison to basic model (am240kxwafr) 2-1 feature of product (cont.) changed part changed item and feature basic (10hp+20hp) after changed (dvm s water 30hp) cabinet save installa...

  • Page 10

    Product specifications samsung electronics 5 changed part changed item and feature basic after changed (am300kxwanr/am240kxwaf(j)r) compressor am***f(k)xwanr : 52/66cc ױ͑70cc 8/10hp : 52cc 12hp : 66cc 20hp : 52cc 30hp : 70cc am***h(k)xwa*r : 52cc ױ 66cc 6/8/10ton : 52cc x 1 16ton : 52cc x 2 20ton : ...

  • Page 11

    Samsung electronics 6 product specifications 2-1-2 changes in comparison to basic model (cont.) q am80/100/120/200fxwa66 2-1 feature of product (cont.) changed part changed item and feature basic after changed main pcb change main pcb - separation for load / control. - option resistance delete by mo...

  • Page 12

    Product specifications samsung electronics 7 2-1-2 changes in comparison to basic model (cont.) changed part changed item and feature basic (am240kxwaf(j)r) after changed (am196hxwaf(j)r) main pba change main pba - increase micom capability hub pcb hub pcb newly application - separation for load / c...

  • Page 13

    Samsung electronics 8 product specifications 2-1-2 changes in comparison to basic model (cont.) q am038/048/055kxwd66 2-1 feature of product (cont.) item feture pba main pcb main pcb - separation for load / control. - option resistance delete by model. (standardization) - when replace the pcb, must ...

  • Page 14

    Product specifications samsung electronics 9 2-1-2 changes in comparison to basic model (cont.) q am072/096/120/192hxwa66 2-1 feature of product (cont.) changed part changed item and feature basic after changed main pcb change main pcb - separation for load / control. - option resistance delete by m...

  • Page 15

    Samsung electronics 10 product specifications 2-1-3 structure of product (am038/048/055kxwdch series) 2-1 feature of product (cont.) accumulator 4way v/v subcooler eev liquid pipe gas pipe plate heat exchanger compressor control box am038/048/055kxwd 6.

  • Page 16

    Product specifications samsung electronics 11 2-1-4 structure of product (small size : am080/100fxwanr* / am072/096/120hxwafr* (large size : am200fxwanr*,am300kxwanr* / am192hxwafr*,am240kxwafr*) small size control box liquid pipe high pressure gas pipe low pressure gas pipe 4 way v/v receiver plate...

  • Page 17

    Samsung electronics 12 product specifications 2-1-5 structure of product (power supply for 460v, 60hz, 3Φ : am072/096/120/192/240*xwajr series) 2-1 feature of product (cont.) small size control box liquid pipe high pressure gas pipe low pressure gas pipe 4 way v/v receiver plate heat exchanger accum...

  • Page 18

    Product specifications samsung electronics 13 غ 3~6hp dvm s water : exploded view - am038/048/055kxwd*** 2-1 feature of product (cont.) assy cabinet parts ل dvm water small frame - size : (750 x 800 x 330) assy cond parts model 038 048/055 dvm water cbh60-24h cbh60-34h assy comp parts model 038 048/...

  • Page 19

    Samsung electronics 14 product specifications غ 8~12hp dvm s water : exploded view - am080/100/120fxwa*** - am072/096/120hxwa*** 2-1 feature of product (cont.) assy cabinet parts ل dvm water small frame - size : (770 x 1000 x 545) assy cond parts model 8hp 10hp 12hp dvm water cbh60-54h assy comp par...

  • Page 20

    Product specifications samsung electronics 15 غ 20/30hp dvm s water : exploded view - am200/300*xwa*** - am192/240*xwa*** 2-1 feature of product (cont.) assy cabinet parts ل dvm water large frame - size : ( 1100 x 1000 x 545 ) assy comp parts model 20hp 30hp dvm water 52cc*2 70cc*2 assy cond parts m...

  • Page 21

    Samsung electronics 16 product specifications system model capacity of single unit (hp) capa code no. Of modules 8hp 10hp 12hp 20hp 8 am080fxwanr 1 1 10 am100fxwanr 1 1 12 am120fxwanr 1 1 16 am160fxwanr2 2 2 18 am180fxwanr2 2 1 1 20 am200fxwanr 1 1 22 am220fxwanr2 2 1 1 24 am240fxwanr2 2 2 26 am260f...

  • Page 22

    Product specifications samsung electronics 17 غ premium energy efficiency type (am***kxwdch*) system model capacity of single unit (ton) capa(ton) code no. Of modules 3 4 5 3 am038kxwdch* 1 1 4 am048kxwdch* 1 1 5 am055kxwdch* 1 1 ሪ make sure to use an indoor unit that is compatible with dvm s water-...

  • Page 23

    Samsung electronics 18 product specifications غ premium energy efficiency type (am***hxwaf(j)r*) غ premium compact type (am***kxwaf(j)r*) system model capacity of single unit (ton) capa(ton) code no. Of modules 6 8 10 16 6 am072hxwa*r 1 1 8 am096hxwa*r 1 1 10 am120hxwa*r 1 1 12 am144hxwa*r2 2 2 14 a...

  • Page 24

    Product specifications samsung electronics 19 2-2-2 indoor unit 2-2 model names of indoor/outdoor unit (cont.) model capacity ( kw ) 1.7 2.2 2.8 3.6 4.5 5.6 6.0 7.1 9.0 slim 1way cassette (jsf) 2way cassette global 4way cas- sette 4way cst (600 x 600) 360 cst floor standing unit slim duct msp duct h...

  • Page 25

    Samsung electronics 20 product specifications 2-2-2 indoor unit (cont.) 2-2 model names of indoor/outdoor unit (cont.) model capacity ( kw ) 11.2 12.8 14.0 22.0 28.0 44.8 500cmh 1000cmh slim 1way cassette (jsf) 2way cassette global 4way cassette 4way cst (600 x 600) 360 cst floor standing unit slim ...

  • Page 26

    Product specifications samsung electronics 21 samsung electronics 21 capa [hp] model name model capa [hp] model name model 8 am080fxwanr 34 am340fxwanr2 10 am100fxwanr 36 am360fxwanr2 12 am120fxwanr 38 am380fxwanr2 16 am160fxwanr2 40 am400fxwanr2 18 am180fxwanr2 42 am420fxwanr2 20 am200fxwanr 44 am4...

  • Page 27

    Samsung electronics 22 product specifications samsung electronics 22 غ premium compact type (am***kxwanr*) 2-2 model names of indoor/outdoor unit (cont.) 2-2-3 outdoor unit (cont.) capa [hp] model name model capa [hp] model name model 30 am300kxwanr 58 am580kxwanr1 38 am380kxwanr1 60 am600kxwanr1 40...

  • Page 28

    Product specifications samsung electronics 23 samsung electronics 23 غ premium energy efficiency type (am***kxwdch*) غ premium energy efficiency type (am***hxwaf(j)r*) 2-2 model names of indoor/outdoor unit (cont.) 2-2-3 outdoor unit (cont.) capa (ton) model name model capa [ton] model name model 6 ...

  • Page 29

    Samsung electronics 24 product specifications samsung electronics 24 غ premium compact type (am***kxwaf(j)r*) 2-2 model names of indoor/outdoor unit (cont.) 2-2-3 outdoor unit (cont.) capa (ton) model name model capa [ton] model name model 20 am240kxwa*r 40 am480kxwa*r1 26 am312kxwa*r1 44 am528kxwa*...

  • Page 30

    Product specifications samsung electronics 25 2-3 combination and connection ratio limitation indoor units installation and use limitations combination normal units hydro oap ahu max. Number of indoor units for connection combination ratio other limitations piping limitations dvm s water o o 64 50~1...

  • Page 31

    Samsung electronics 26 product specifications 2-4 components and feature model hp compressor (inverter scroll) electronic expansion valve high pressure switch check valves solenoid valves am***f(k)xwanr* 8 1 2 1 6 8 10 12 20 2 2 7 9 30 model ton compressor (inverter scroll) electronic expansion valv...

  • Page 32

    Product specifications samsung electronics 27 2-5 product specification 2-5-1 outdoor unit image model name am080fxwanr/eu am100fxwanr/eu am120fxwanr/eu am200fxwanr/eu am300kxwanr/eu power supply Φ, #, v, hz 3/ac380~415/50 performance hp hp 8 10 12 20 30 capacity (nominal) cooling kw 23 29 34.8 58 8...

  • Page 33

    Samsung electronics 28 product specifications product specifications samsung electronics 29 2-5-1 outdoor unit (cont.) 2-5 product specification (cont.) image model name(samsung model) am038kxwdch/aa am048kxwdch/aa am055kxwdch/aa am072hxwafr/aa am096hxwafr/aa am120hxwafr/aa am192hxwafr/aa am240kxwaf...

  • Page 34

    Samsung electronics 30 product specifications 2-5-1 outdoor unit (cont.) 2-5 product specification (cont.) image model name(samsung model) am072hxwajr/aa am096hxwajr/aa am120hxwajr/aa am192hxwajr/aa am240kxwajr/aa mode - hr hr hr hr hr power supply Φ, v, hz 3,460v/60hz performance ton ton 6 8 10 16 ...

  • Page 35

    Product specifications samsung electronics 31 2-6 accessory and option specifications 2-6-1 controller classification product model image remark using individual control system wireless remote controller mr-eh00 dvm, cac wireless remote controller ar-kh00e 360 cst only dvm, cac wired remote controll...

  • Page 36

    Samsung electronics 32 product specifications 2-6 accessory and option specifications (cont.) classification product model image remark using centralized control system onoff controller mcm-a202dn dvm, cac touch centralized controller mcm-a300n dvm, cac wifi kit mim-h03n dvm, cac interface module mi...

  • Page 37

    Product specifications samsung electronics 33 2-6 accessory and option specifications (cont.) 2-6-1 controller (cont.) classification product model image remark using gate way pim (pulse interface module) mim-b16n dvm, cac module controller mcm-a00n chiller only chiller fcu kit mim-f00n chiller only...

  • Page 38

    Samsung electronics 34 product specifications 2-6-2 piping product image model remark y-joint mxj-ya1509m 15.0 kw and below mxj-ya2512m over 15.0 kw~40.0 kw and below mxj-ya2812m over 40.0 kw~45.0 kw and below mxj-ya2815m over 45.0 kw~70.3 kw and below mxj-ya3419m over 70.3 kw~98.4 kw and below mxj-...

  • Page 39

    Product specifications samsung electronics 35 2-6-3 indoor product image model remark panel pc1nusman slim 1way cassette pc1nupman slim 1way cassette (z-sliding) pc1mwskan 1way cassette (1.7 kw, 2.2 kw) pc2nusmen 2way cassette pc4susman 4way cassette s(600x600) (waffle) pc4susmen 4way cassette s(600...

  • Page 40

    Samsung electronics 36 product specifications 2-6-3 indoor (cont.) product image model remark s-plasma ion kit msd-can1 [option] 1way, 4way, 4 way(600x600),360, big ceiling, [included] console msd-ean1 [option] duct s, big duct, erv, erv plus motion detect sensor mcr-sma 4way cassette s(600x600) erv...

  • Page 41

    Product specifications samsung electronics 37 2-6-4 controller & control accessory compatibility item nasa remark individual control system wireless remote controller mr-eh00 dvm, cac wireless remote controller ar-kh00e dvm, cac (360 cst) wired remote controller mwr-we11n dvm, cac wired remote contr...

  • Page 42

    Samsung electronics 38 product specifications product specifications samsung electronics 39 2-6-5 indoor units accessory compatibility Źin case you want more information about the accessories, please refer to the control and accessories tdb on pvi.Samsung.Com site. Product model remark 1way 2way 4wa...

  • Page 43

    Samsung electronics 40 3. Disassembly and reassembly 3-1 necessary tools refrigerant pipe installation refrigerant pipe work ∙ the length of refrigerant pipe should be as short as possible and the height difference between an indoor and outdoor unit should be minimized. ∙ piping work must be done wi...

  • Page 44

    Disassembly and reassembly samsung electronics 41 no. Work procedure remark 1 unfasten the two screws on the inspection window of the panel front. Open the rain cover. The rain cover is connected via a ring to the device in order to prevent loss. - operating the device with the rain cover opened may...

  • Page 45

    Samsung electronics 42 disassembly and reassembly no. Work procedure remark 2 1) removing the cabinet front. Unfasten the nine screws on the cabinet front. 1) removing the cabinet front. - cabinet front is hung on the side frame, using supportive tabs. - slightly lift and pull the cabinet towards yo...

  • Page 46

    Disassembly and reassembly samsung electronics 43 no. Work procedure remark 3 caution to perform additional internal repair service after remov- ing the panels, be sure to cut off the power supply first. To disconnect the power supply, remove the cabinet- front and then remove the control box cover....

  • Page 47

    Samsung electronics 44 disassembly and reassembly no. Work procedure remark 1 be sure to power off the circuit breaker before discon- necting the power supply. Unfasten the two screws on the protective cover of the power connection box and remove the protective cover. Remove the (transparent) cover ...

  • Page 48

    Disassembly and reassembly samsung electronics 45 no. Work procedure 3 the front view of the device when it is ready for internal repair after the power supply has been disconnected is shown below. Image 3-2 disassembly and reassembly (cont.) 3-2-3 disconnecting the power supply.

  • Page 49

    Samsung electronics 46 disassembly and reassembly no. Work procedure remark 4 1) removing the left compressor. - remove the cover of the power terminal block for the compressor. - use a screwdriver to pull the upper part of the cover towards you and remove the cover, as shown in the image. - unfaste...

  • Page 50

    Disassembly and reassembly samsung electronics 47 no. Work procedure remark 1 - use a torch to heat and separate the three welded joints connecting the compressor to the pipes. - unfasten the four nuts on the compressor. - separate the compressor from the device while leaning the compressor towards ...

  • Page 51

    Samsung electronics 48 disassembly and reassembly 3-2 disassembly and reassembly (cont.) 3-2-5 compressor exchange order step occasion that compressor is 1 inside outdoor unit occasion that compressor is 2 inside outdoor unit 1 - establish compressor to exchange by cutting. 2 - refrigerant release d...

  • Page 52

    Disassembly and reassembly samsung electronics 49 غ check point at compressor replacement 1) check oil color of broken compressor. - if one compressor is broken, you are not sure another compressor should be replaced together or not. At that time, check oil color of broken compressor comparing with ...

  • Page 53

    Samsung electronics 50 disassembly and reassembly no. Work procedure remark 1 1) oil separator - to remove the oil separators, first you must unfasten the two screws on the oil separator assembly at the base. - separate the five welded joints. - unfasten the two screws on the oil separator assembly ...

  • Page 54

    Disassembly and reassembly samsung electronics 51 no. Work procedure remark 2 2) accumulator - to remove the accumulator, first you unfasten the two screws on accumulator. - unfasten the two nuts on subcooler. - unfasten the three screws on base. Subcooler accumulator accumulator 3-2 disassembly and...

  • Page 55

    Samsung electronics 52 disassembly and reassembly no. Work procedure remark 3 use a torch to heat and separate the four welded joints. 3) receiver - to remove the receiver, first you unfasten the four screws on base. - use a torch to heat and separate the three welded joints. 3-2 disassembly and rea...

  • Page 56

    Disassembly and reassembly samsung electronics 53 no. Work procedure remark 4 the device control pba is located in the upper part of the control box. Remove the connectors from the control pba. Unfasten the two screws at the upper part of the control pba. Lift and separate the pba while pulling the ...

  • Page 57

    Samsung electronics 54 disassembly and reassembly no. Work procedure remark 1 - the hub pba is located in the middle of the control box. - remove all the connectors from the control pba (on the both side)." - unfasten the two screws on the right side at the upper and lower parts of the hub pba. Hub ...

  • Page 58

    Disassembly and reassembly samsung electronics 55 no. Work procedure remark 2 - lift and separate the hub pba to the right. 3-2 disassembly and reassembly (cont.) 3-2-7 removal instructions for the hub pba (cont.).

  • Page 59

    Samsung electronics 56 disassembly and reassembly no. Work procedure remark 2 - lift and separate the hub pba to the right. 3-2 disassembly and reassembly (cont.) 3-2-8 removal instructions for the control panel assy.

  • Page 60

    Disassembly and reassembly samsung electronics 57 no. Work procedure remark 3 - turn the control panel assy over towards you while holding the locking hook. - the internal view of the control box after the control panel assy has been turned over is shown. Inverter pba #2 inverter pba #1 [am240kxwajr...

  • Page 61

    Samsung electronics 58 disassembly and reassembly no. Work procedure remark 3 - from the upper part of the power module on the front. ᐓ dc_reactor #1 ᐔ dc_reactor #2 ᐕ emi pba #2 ᐖ emi pba #1 dc_reactor #1 dc_reactor #2 [am240kxwafr/aa] [am300kxwanr/eu] dc_reactor #1 dc_reactor #2 [am240kxwajr/aa] 3...

  • Page 62

    Disassembly and reassembly samsung electronics 59 no. Work procedure remark 1 - to remove the inverter pba. ᐭ unfasten the five wire screws for the compressor and reactor. ᐮ remove the power connector. Compressor wire screws. Dc-reactor wire screws. Power connector. [am240kxwajr/aa] [am240kxwafr/aa]...

  • Page 63

    Samsung electronics 60 disassembly and reassembly no. Work procedure remark 2 ᐯ unfasten the screws on the case of the inverter pba. ᐰ unfasten the screws on the ipm. Am240kxwajr/aa : 2ea am240kxwafr/aa, am300kxwanr/eu : 4ea ఐ after completing the operation, fasten the cable tie as shown in the imag...

  • Page 64

    Disassembly and reassembly samsung electronics 61 no. Work procedure remark 3 ུ separate the inverter pba case from the front while holding the hook. ఐ after inspection, check the condition of grease applied. * conditions of heat transfer grease applied to the inverter pba' good no good if thermal g...

  • Page 65

    Samsung electronics 62 disassembly and reassembly no. Work procedure remark 121 - unfasten the dc reactor wire screws, and then lift and separate the reactors. (applicable to both reactors #1 and #2). [am240kxwafr/aa] [am300kxwanr/eu] [am240kxwajr/aa] 3-2-10 removal instructions for the dc reactors ...

  • Page 66

    Disassembly and reassembly samsung electronics 63 no. Work procedure remark 2 - to remove the emi pba, first you must remove plate as shown in the image. Remove the connectors inside the emi pba, and then unfasten the two screws fixing the case on the pba. 3-2-10 removal instructions for the dc reac...

  • Page 67: 4. Troubleshooting

    Samsung electronics 64 4. Troubleshooting 4-1 check-up window description غ am038/048/055kxwdch* 4 1 2 6 5 3 no. Specific functions no. Specific functions 1 display 4 eeprom connector (b7p-mq wht) 2 tact switch 5 communication connector between indoor and outdoor unit. 3 micom download (ydw200-20 bl...

  • Page 68

    Samsung electronics 65 4-1 check-up window description (cont.) ఐ outdoor power off even when the inverter pcb, fan pcb is a high dc voltage charging contacts at danger. ఐ͑͑when you run the repair and replacement of the pcb should work after the power is turned off, the dc voltage discharge. (natural...

  • Page 69

    Samsung electronics 66 غ͑͑am080/100/120/200fxwanr*, am300kxwanr* / am072/096/120/192hxwaf(j)r*, am240kxwaf(j)r* 4-1 check-up window description (cont.) no. Specific functions no. Specific functions 1 totally pba-pba uart comm checking 9 comm pba connecting (r1/r2) 2 s/w download for main pba 10 cent...

  • Page 70

    Troubleshooting samsung electronics 67 غ͑͑am080/100/120/200fxwanr*, am300kxwanr* / am072/096/120/192hxwaf(j)r*, am240kxwaf(j)r* ـ key input of the outdoor unit when the service enters the operation mode. K1 (number of press) key operation display on segment press and hold 1 time auto trial operation...

  • Page 71

    Samsung electronics 68 troubleshooting غ͑͑am080/100/120/200fxwanr*, am300kxwanr* / am072/096/120/192hxwaf(j)r*, am240kxwaf(j)r*(cont.) 4-2 service operation (cont.) 4-2-1 special operation (cont.) k2 (number of press) key operation display on segment 11 times cooling fan/flow control valve check k -...

  • Page 72

    Troubleshooting samsung electronics 69 غ auto trial operation ـ͑ after initial installation, stable operation for a certain period of time limited to operation conditions. Cooling heating method of entry k2 tact switch twice k1 tact switch twice compressor normal operation, but the maximum frequency...

  • Page 73

    Samsung electronics 70 troubleshooting غ heating pump out ـ operation for the repair of the individual outdoor unit, the outdoor unit refrigerant emissions to the indoor part. ـ liquid pipe service valve and the gas pipe service valve operation, the operator manually need to close. ـ observe low pre...

  • Page 74

    Troubleshooting samsung electronics 71 غ vacuum operation ـ operation to facilitate vacuum to open the valve after the outdoor unit repair. غ piping inspection operation ـ operation mode to check the status of the piping between the mcu and the indoor unit. ـ heat pump model : water temperature is m...

  • Page 75

    Samsung electronics 72 troubleshooting غ forced oil recovery operation ـ forced oil recovery operation : oil recovery in the outdoor unit for the purpose of moving, installation if necessary. Method of entry k2 tact switch 7 times start pattern water temperature is more than 10°c : cooling auto tria...

  • Page 76

    Troubleshooting samsung electronics 73 4-2 service operation (cont.) 4-2-2 dvm s models eeprom code table no. Model name inverter pba eep code no. Model name inverter pba eep code 1 am038kxwdch db92-03686a db82-03454a 13 am240kxwajr db92-03526a db82-03802a 2 am048kxwdch db92-03687a db82-03455a 14 am...

  • Page 77

    Samsung electronics 74 troubleshooting غ how to display integrated error code ـ meanings of first alphabetical character / number of error code ـ order of error display classification error display method display example display method for error that occurred in indoor unit error number ࣖ indoor uni...

  • Page 78

    Troubleshooting samsung electronics 75 code explanation e-101 indoor unit communication error. Indoor unit can not receive any data from outdoor unit. E-102 communication error between indoor unit and outdoor unit. Displayed in indoor unit. E-108 error due to repeated address setting (when 2 or more...

  • Page 79

    Samsung electronics 76 troubleshooting غ diagnosis and adjustment (error code) ـ error code related to the communications / settings / hw (cont.) error mode cause e-203 communication error between main and sub outdoor units e-205 communication error on all pba within the outdoor unit c-box, communic...

  • Page 80

    Troubleshooting samsung electronics 77 غ diagnosis and adjustment (error code) ـ error code related to the communications / settings / hw (cont.) error mode cause e-353 error due to overheated motor of outdoor unit's fan2 e-355 error due to overheated ipm of fan2 e-361 error due to operation failure...

  • Page 81

    Samsung electronics 78 troubleshooting غ diagnosis and adjustment (error code) ـ error code related to the communications / settings / hw (cont.) error mode cause e-453 error due to overheated motor of outdoor unit's fan1 e-454 error due to the outdoor unit fan rpm e-455 error due to the over heat f...

  • Page 82

    Troubleshooting samsung electronics 79 if the auto trial operation is not completed- up is displyed(unprepared) prior to starting the air conditioning operation after the initial installation and auto trial operation is carried out. This process, the stable operation to protect the system and verify...

  • Page 83

    Samsung electronics 80 troubleshooting غ reversed phase/no phase check (outdoor unit with 3 phase power) – display for problem 1. When the power is on, check the status of the power from the inverter. Three-phase l1(r)-l2(s)-l3(t) order, regardless of the power connection on the inverter does not ph...

  • Page 84

    Troubleshooting samsung electronics 81 غ initial tracking (communication check-up)- display for problem 1. For the display module of the outdoor unit, there are differences in the contents displayed depending on whether the relevant outdoor unit is a master unit or a sub unit. 1) master unit Ɣ the o...

  • Page 85

    Samsung electronics 82 troubleshooting 3. If the quantity of the indoor units configured with the indoor unit installation quantity setup switch does not match the quantity of the indoor units found during the tracking process, e201 and u200 will be displayed in order on the display module. 4. When ...

  • Page 86

    Troubleshooting samsung electronics 83 outdoor unit display main pba has no power phenomenon (7-seg does not blink) judgment method hub pba power and connection wire to detect. Connector check method cn96 on hub pba - 1pin to 4pin : dc 12v - 9pin to 4pin : dc 5v cause of problem ∙ hub pba connector ...

  • Page 87

    Samsung electronics 84 troubleshooting 1. Cause of problem yes indoor unit installation quantity setup switch of outdoor unit compare and check the set value and the actual number of indoor units installed. Press the reset key (k3) of the outdoor pba, and check the display module to check for the qu...

  • Page 88

    Troubleshooting samsung electronics 85 ఐ͑essential requirements before pba changes in case of communication error occurrence 1. Find the communication ic near the communication terminal. Ɣ indoor unit - coil side or ptc (smd) side : communication ic between indoor and outdoor units. Ɣ outdoor unit -...

  • Page 89

    Samsung electronics 86 troubleshooting 1. Cause of problem 0.7v 0.7v good defective press the reset key (k3) of the outdoor unit pba and check the display module. Is the voltage between the 2 cables a square wave with dc±0.7v or more as shown in the image below? Is there no indoor unit response at a...

  • Page 90

    Troubleshooting samsung electronics 87 4-3-5 communication error between main and sub unit of outdoor unit or between outdoor units 1. Cause of problem essential requirements before changing pba in case of communication error: refer to p.59 check the outdoor unit with error. (u200, u201, u202, u203)...

  • Page 91

    Samsung electronics 88 troubleshooting 4-3-6 internal communication error of the outdoor unit c-box 1. Cause of problem replace main pba restart operation after connecting the inverter pba2 cn31(when the comp. Applied one : inverter pba1) connector. (check the 3, 4 pin short) * service after turn of...

  • Page 92

    Troubleshooting samsung electronics 89 outdoor unit display (c001 ~ c005) - some boards of outdoor unit are not communicating indoorunit display duct, cassette (1/2 way),console, celing cassette (4/mini4 way) wall-mounted (neoforte) operation defrost timer fan filter/mpi operation defrost timer filt...

  • Page 93

    Samsung electronics 90 troubleshooting 4-3-7 internal pba communication error of the outdoor unit c-box (cont.) c003 : replace the inverter pba 1 c004 : replace the inverter pba 2 c005 : replace the water hub pba e206 c003/c004 4-3 appropriate measures for different symptom (cont.).

  • Page 94

    Troubleshooting samsung electronics 91 4-3-8 mcu branch part setup error – inconsecutive connection with the use of 2 branch parts 1. How to check find an mcu that is composed as the following picture to carry out assembly of branch part again. After completing the re-setting, press k3 button on the...

  • Page 95

    Samsung electronics 92 troubleshooting 4-3-9 mcu branch part setup error – repeated setup for the same address over 3 times 1. How to check find an mcu that is composed as the following picture to carry out assembly of branch part again. After completing the re-setting, press k3 button on the button...

  • Page 96

    Troubleshooting samsung electronics 93 4-3-10 mcu branch part setup error – non-installed address setup 1. How to check find an mcu that is composed as the following picture to carry out assembly of branch part again. After completing the re-setting, press k3 button on the button to reset or turn it...

  • Page 97

    Samsung electronics 94 troubleshooting 4-3-11 setup error for mcu branch part – setup error for mcu quantity used 1. Inspection method check the main pba mcu quantity setting switch of the outdoor unit and check the installed mcu quantity matches. Check whether each mcu pba address switch was duplic...

  • Page 98

    Troubleshooting samsung electronics 95 4-3-12 mcu branch part setup error – overlapping indoor unit address setup 1. How to check check the setup switch for the number of indoor units in mcu after completing resetting, press the outdoor unit's k3 button to reset or turn off to restart. Mcu box #0 mc...

  • Page 99

    Samsung electronics 96 troubleshooting 4-3-13 mcu branch part setup error – set as being used without connection to an indoor unit 1. How to check adjust the dip switch that sets up the use of mcu branch part to ‘not-used'. After completing resetting, press the outdoor unit's k3 button to reset or t...

  • Page 100

    Troubleshooting samsung electronics 97 4-3-14 mcu branch part setup error – connect an indoor unit to a branch part not being used 1. How to check check the actual use of the branch part. If it is used, turn on the dip switch for branch part setup. After completing resetting, press the outdoor unit'...

  • Page 101

    Samsung electronics 98 troubleshooting 4-3-15 mcu branch part setup error – connect more indoor units than what is actually set up in mcu 1. How to check check the number of indoor units connected to mcu then readjust the switch for the number of units after completing resetting, press the outdoor u...

  • Page 102

    Troubleshooting samsung electronics 99 4-3-16 mcu/mcu subcooler entrance/exit sensor error (open/short) 1. Cause of problem is the sensor connector connected on the pba ? Is the resistor value matching with “note1” table? Separate the connector from the pba and measure the resistance value between t...

  • Page 103

    Samsung electronics 100 troubleshooting 4-3-17 outdoor temperature sensor error 1. Cause of problem is the outdoor temperature sensor connector (cn43) connected to pba? Did the resistance value significantly stray from the following temperature table? After separating the outdoor temperature sensor ...

  • Page 104

    Troubleshooting samsung electronics 101 4-3-18 cond out temperature sensor error (open/short) 1. Cause of problem yes is the cond out sensor connector (cn43) connected to pba? Did the resistance value significantly stray from the following temperature table? After separating the outdoor cond out sen...

  • Page 105

    Samsung electronics 102 troubleshooting 4-3-19 outdoor cond out sensor breakaway error 1. Judgment method 1) no inspection for cooling operation. 2) for heating operation (each of the conditions below needs to be satisfied for more than 20 minutes.) checking of condition satisfy condition ? High pre...

  • Page 106

    Troubleshooting samsung electronics 103 1. Judgment method 1) no inspection for cooling operation. 2) for heating operation (each of the conditions below needs to be satisfied for more than 20 minutes.) 1. Point of enter. 䆚 detected only when heating operation.(except main heating operation) 䆛 compr...

  • Page 107

    Samsung electronics 104 troubleshooting 4-3-20 compressor discharge or top 1/2 temperature sensor error 1. Cause of problem yes compressor discharge or top temperature sensor connector (cn43, cn45) connected to pba? Is the resistor value matching with “note1” table? After separating the compressor d...

  • Page 108

    Troubleshooting samsung electronics 105 4-3-21 compressor discharge or top temperature sensor breakaway error 1. Cause of problem re-insert sensor re-attach sensor holder no yes is the discharge or top temperature sensor and the sensor holder correctly attached? Defective sensor : replace sensor no ...

  • Page 109

    Samsung electronics 106 troubleshooting 4-3-22 : suction temperature sensor breakaway error 1. Cause of problem replace the pba is suction sensor and sensor holder accurately attached? Is suction sensor resistance value reasonable? (refer to the “note 1” ) defective sensor : replace sensor no re-ins...

  • Page 110

    Troubleshooting samsung electronics 107 4-3-23 high pressure sensor error (open/short) 1. High pressure sensor open/short error determination method 1) identifies from when power is supplied or 2 minutes after reset, and only when set is stopped. 2) an open/short error will occur if the input voltag...

  • Page 111

    Samsung electronics 108 troubleshooting 4-3-24 low pressure sensor error (open/short) 1. Low pressure sensor open/short error determination method 1) identifies from when power is supplied or 2 minutes after reset, and only when set is stopped. 2) an open/short error will occur if the input voltage ...

  • Page 112

    Troubleshooting samsung electronics 109 4-3-25 suction temperature sensor error (open/short) 1. Cause of problem resistance value measure part suct suct no no yes yes outdoor unit suction sensor connector (cn44) connected to pba? Is the resistor value matching with “note1” table? Separate the connec...

  • Page 113

    Samsung electronics 110 troubleshooting 4-3-26 liquid pipe temperature sensor error (open/short) 1. Cause of problem no no resistance value measure part liquid yes yes liquid pipe temperature sensor connector (cn45) connected to pba? Separate the connector of the liquid pipe temperature sensor from ...

  • Page 114

    Troubleshooting samsung electronics 111 4-3-27 evi in temperature sensor error (open/short) 1. Cause of problem outdoor evi in sensor connector (cn44) connected to pba? Is the resistor value matching with “note1” table? Separate the connector of the outdoor evi in temperature sensor from the pba and...

  • Page 115

    Samsung electronics 112 troubleshooting 4-3-28 evi out temperature sensor error (open/short) cn44 (5, 6) 1. Cause of problem outdoor evi out sensor connector (cn44) connected to pba? Is the resistor value matching with “note1” table? Separate the connector of the outdoor evi out temperature sensor f...

  • Page 116

    Troubleshooting samsung electronics 113 4-3-29 suction-2 temperature sensor error (open/short) 1. Inspection method yes suction2 sensor connector (cn44) connected to pba? Is the resistor value matching with “note1” table? Separate the connector of the suction-2 sensor from the pba, and measure the r...

  • Page 117

    Samsung electronics 114 troubleshooting 1. Judgement by code code error measures e367 comp.2 wire unconnected error 1. Check the compressor and inverter pba connection. 2. When connected inverter checker, if led operates in the normal- ity : external factors or when led operates by abnormality, repl...

  • Page 118

    Troubleshooting samsung electronics 115 is the s-net estimated value and the manifold gauge value in range? Are the indoor unit and outdoor unit eev normally operating? Are there any blockage inside the pipe? (filter etc.) check the refrigerant amount. When cooling operation, water temperature, quan...

  • Page 119

    Samsung electronics 116 troubleshooting 4-3-32 : comp. Down due to low pressure protection control 1. Cause of problem is the s-net estimated value and the manifold gauge value in range? Are the indoor unit and outdoor unit eev normally operating? Are there any blockage inside the pipe? (filter etc....

  • Page 120

    Troubleshooting samsung electronics 117 1. Cause of problem is the s-net estimated value and the manifold gauge value in range? When heating operation temperature and the quantity is within the normal range? Are the indoor unit and outdoor unit eev normally operating? Are there any blockage inside t...

  • Page 121

    Samsung electronics 118 troubleshooting 4-3-33 : suspension of starting due to compressor discharge temperature sensor / top temperature sensor 1. Cause of problem is the resistance value normal for the compressor discharge temperature sensor/ top temperature sensor? (refer to “note 1”) auto trial o...

  • Page 122

    Troubleshooting samsung electronics 119 4-3-34 3-phase input wiring error 1. Cause of problem replace the main pba. Connection and then restart it power box terminal : check the phase-to-phase connection 380v of the r, s, t and then restart. (n-phase must be properly connected.) no no yes yes did th...

  • Page 123

    Samsung electronics 120 troubleshooting 4-3-35 : suspension of starting by abnormal compression ratio 1. Cause of problem complete check the 4way valve replace defective sensor no no yes yes are the 4way valve normally operating? Is the s-net estimated value and the manifold gauge value in range? Ch...

  • Page 124

    Troubleshooting samsung electronics 121 4-3-36 evi eev open error ఐ for the indoor eev leakage check, operate one of the indoor units in cooling mode and the others in fan mode. · in case of normal units in fan mode, eva in/out temperatures become close to the room temperature within 5minutes. · cha...

  • Page 125

    Samsung electronics 122 troubleshooting 4-3-37 refrigerant leakage error outdoor unit display (refrigerant leakage judgment before starting) (when start, refrigerant leakage judgment) judgment method ∙ before starting : before compressor starting after system halt 2 minutes (high & low pressure sens...

  • Page 126

    Troubleshooting samsung electronics 123 4-3-38 prevention of heating / cooling operation due to outdoor temperature outdoor unit display (prevention of heating operation due to high temperature of water) (prevention of cooling operation due to low temperature of water) indoorunit display duct, casse...

  • Page 127

    Samsung electronics 124 troubleshooting 4-3-39 prevention of heating refrigerant charge due to outdoor temperature outdoor unit display indoorunit display duct, cassette (1/2 way),console, celing cassette (4/mini4 way) wall-mounted (neoforte) operation defrost timer fan filter/ mpi operation defrost...

  • Page 128

    Troubleshooting samsung electronics 125 1. Judgment method (2hours after reset or power on, it will be judged once.) ① compressor top temperature at the time of judgment- tini ② compressor top temperature at the time of judgment- suction1 temp. Sensor ③ outdoor temperature ④ up state ※ if all the co...

  • Page 129

    Samsung electronics 126 troubleshooting 4-3-41 momentary blackout error 1. Precautions : replace hub pba or main pba. Outdoor unit display indoorunit display duct, cassette (1/2 way),console, celing cassette (4/mini4 way) wall-mounted (neoforte) operation defrost timer fan filter/ mpi operation defr...

  • Page 130

    Troubleshooting samsung electronics 127 4-3-42 compressor starting error outdoor unit display (inverter1 pba) (inverter2 pba) judgment method ∙ startup, and then if the speed increase is not normally. ∙ detected by h/w or s/w. Cause of problem ∙ compressor connection error ∙ defective compressor 1. ...

  • Page 131

    Samsung electronics 128 troubleshooting 4-3-42 compressor starting error (cont.) 4-3 appropriate measures for different symptom (cont.) غ compressor applied one غ͑compressor applied two continue continue yes did the error occurs? No before change / after change error, depending on the situation repl...

  • Page 132

    Troubleshooting samsung electronics 129 4-3-43 comp overcurrent error outdoor unit display (inverter1 pba) (inverter2 pba) judgment method ∙ will occur if the overcurrent flowing in the ipm. ∙ detected by h/w or s/w cause of problem ∙ comp. Defective. ∙ inverter pba defective. 1. Cause of problem re...

  • Page 133

    Samsung electronics 130 troubleshooting 4-3 appropriate measures for different symptom (cont.) 4-3-43 comp overcurrent error (cont.) continue continue before change / after change error, depending on the situation replace the compressor or pba غ compressor applied one غ͑compressor applied two restar...

  • Page 134

    Troubleshooting samsung electronics 131 غ how to use inverter checker (warning for high pressure) ـ check between motor ׳ fan pba 1) after cut off, connect inverter checker with u,v,w of motor 2) after turn on, enter comp. Check mode by pushing k2 in main pba 3) judgment ዋ 6 leds of inverter checker...

  • Page 135

    Samsung electronics 132 troubleshooting division measured point criterion remark + - measure the resistance values p-igbt u more than 500 Ꮒ measurement error can occur for reasons s uch as the initial measurement condenser discharge. Measured over at least three times. P-igbt v p-igbt w u n-igbt v n...

  • Page 136

    Troubleshooting samsung electronics 133 4-3-44 overvoltage / low voltage error outdoor unit display (inverter1 pba) (inverter2 pba) judgment method ∙ input wiring error emi fuse open. ∙ dc-link overvoltage / low voltage occurs. Cause of problem - check the power source wiring. (r/s/t/n wire crossed ...

  • Page 137

    Samsung electronics 134 troubleshooting 4-3-45 dc link voltage sensor error outdoor unit display (inverter1 pba) (inverter2 pba) (outdoor fan 1 pba) judgment method ∙ dc voltage detection : error judgment where the voltage value is more than 4.8v or less than 0.2v. Cause of problem ∙ dc link connect...

  • Page 138

    Troubleshooting samsung electronics 135 4-3-46 input / output current sensor error outdoor unit display inverter1 pba(input current sensor) inverter2 pba(input current sensor) inverter1 pba(output current sensor) inverter 2 pba(output current sensor) outdoor fan pba (fan1 output current sensor) outd...

  • Page 139

    Samsung electronics 136 troubleshooting 4-3-47 inverter pba ipm overheating error outdoor unit display (inverter1 pba) (inverter2 pba) judgment method - inverter pba ipm internal temperature is more than 105°c. Cause of problem - heat sink and the ipm surface contact assembly defective. - refrigeran...

  • Page 140

    Troubleshooting samsung electronics 137 4-3-48 option setting error of outdoor unit 1. Cause of problem download relevant model eeprom and then reset. ※ execute automatic commissioning for up cancellation after eeprom download. Set the compressor breakdown setting value as "not set" ※ when there is ...

  • Page 141

    Samsung electronics 138 troubleshooting 4-3-49 error due to using single type outdoor unit in a module installation 1. Cause of problem outdoor unit single type exclusive use model (non-modular model), can not be module installation. (single type only installation) connect outdoor unit eeprom and th...

  • Page 142

    Troubleshooting samsung electronics 139 4-3-50 indoor unit and mcu address duplication error outdoor unit display - a00x (x : address of duplicate indoor unit) indoor unit display operation defrost timer fan filter/emi × × ስ ስ × ※ ● : on ስ : flash ×: off judgment method refer to the judgment method ...

  • Page 143

    Samsung electronics 140 troubleshooting 4-4 case study for trouble shoots 4-4-1 electric discharge mode غ͑warning of electrical shock from dc power ƒ it is seriously dangerous to touch inverter pba as high dc voltage is charged. ƒ must do key operation “discharge mode” or wait for more 15 minutes to...

  • Page 144

    Troubleshooting samsung electronics 141 غ͑how to proceed k2 (number of press) key operation display on 7-segment 1times refrigerant charging in cooling mode k - 5 - blank - blank 2times trial operation in cooling mode k - 6 - blank - blank 3times pump down all units in cooling mode k - 7 - blank - b...

  • Page 145

    Samsung electronics 142 troubleshooting ▶ during discharging mode, voltage of inv1 and inv2 will be displayed alternately. ▶ even when the power is off, it is dangerous when you come in contact with inverter pba, fan pba since high pressure dc voltage is charged to those parts. ▶ when replacing or r...

  • Page 146

    Troubleshooting samsung electronics 143 4-4-2 pump down operation recover the refrigerant of indoor unit and piping to outdoor side. The operator need to close liquid service valve and the gas service valve manually Ź how to store refrigerant to the separate container. 1. Prepare manifold gage, cont...

  • Page 147

    Samsung electronics 144 troubleshooting 4-4-2 pump down operation (cont.) 4-4 case study for trouble shoots (cont.).

  • Page 148

    Troubleshooting samsung electronics 145 4-4-3 pump out operation operation for the repair of the individual outdoor unit, refrigerant emissions to the indoor part. The operator need to close liquid service valve and the gas service valve manually . Caution 1. Observe low pressure using view mode of ...

  • Page 149

    Samsung electronics 146 troubleshooting 4-4-3 pump out operation (cont.) 4-4 case study for trouble shoots (cont.).

  • Page 150

    Troubleshooting samsung electronics 147 4-4-4 vacuum operation to facilitate vacuum to open the valve after the outdoor unit repair. There are several eev & solenoid valve so to secure perfect vacuum this function is required. K1 button display on 7-segment function 7times “ ” “ ” “ ” “ ” vacuuming(...

  • Page 151

    Samsung electronics 148 troubleshooting 4-4-5 case study – e201 (communication error between indoor & outdoor unit) outdoor unit display indoorunit display duct, cassette (1/2 way),console, celing cassette (4/mini4 way) wall-mounted (neoforte) operation defrost timer fan filter/ mpi operation defros...

  • Page 152

    Troubleshooting samsung electronics 149 ƒ action ƒ solution - change the wire to new one ● how to check the comm. Ic action result check wiring to f1,f2 terminal block ok comm. Ic check ok check odu pba setting ok check other error occurrence ok wiring broken check ng – middle of the f1 wire was bro...

  • Page 153

    Samsung electronics 150 troubleshooting 4-4-6 case study – e205 (internal communication error of the outdoor unit c-box) outdoor unit display indoorunit display duct, cassette (1/2 way),console, celing cassette (4/mini4 way) wall-mounted (neoforte) operation defrost timer fan filter/ mpi operation d...

  • Page 154

    Troubleshooting samsung electronics 151 4-4-7 case study – e206 (internal communication error of the outdoor unit c-box) outdoor unit display indoorunit display duct, cassette (1/2 way),console, celing cassette (4/mini4 way) wall-mounted (neoforte) operation defrost timer fan filter/ mpi operation d...

  • Page 155

    Samsung electronics 152 troubleshooting 4-4-8 case study – e108 (error due to repeated address setting) outdoor unit display - a00x (x : address of duplicate indoor unit) indoorunit display operation defrost timer fan filter/emi × × ስ ስ × ※ ● : on ◑ : flash ×: off judgment method ∙ refer to the judg...

  • Page 156

    Troubleshooting samsung electronics 153 4-4-9 case study – e108, e604, e613 pim display e604 contents communication error between wired remote controller & indoor unit error result remote controller stop cause - when tracking between wired remote controller and indoor unit/ventilator (erv) is not co...

  • Page 157

    Samsung electronics 154 troubleshooting 4-4-10 case study – e461, e361 (error due to operation failure of inverter compressor) outdoor unit display (inverter1 pba) (inverter2 pba) judgment method ∙ startup, and then if the speed increase is not normally. ∙ detected by h/w or s/w. Cause of problem ∙ ...

  • Page 158

    Troubleshooting samsung electronics 155 4-4-11 case study – inverter pba error outdoor unit display (inverter1 pba) (inverter2 pba) judgment method ∙ will occur if the overcurrent flowing in the ipm. ∙ detected by h/w or s/w cause of problem ∙ installation defective ∙ comp. Defective ∙ pba defective...

  • Page 159

    Samsung electronics 156 troubleshooting 4-4-12 case study – e461/361 & e464/364 & e466/366 ƒ check whether compressor defect or inverter pba defect. E461/464 / 466 e361/364 / 366 ƒ diagnosis 1 : using inverter checker 1. Power off 2. Wait more than 15 minutes after the power off as in case of ipm fa...

  • Page 160

    Troubleshooting samsung electronics 157 ƒ diagnosis 2 : when 2comp system 1. Power off 2. Wait more than 15 minutes after the power off. 3. Exchange comp wire ( inverter pba 1 ׳ comp 2 & inverter pba 2 ׳ comp 1) 4. Take measure according to the result 4-4-12 case study – e461/361 & e464/364 & e466/3...

  • Page 161

    Samsung electronics 158 troubleshooting ƒ diagnosis 3 : check inverter pba defect with tester 1. Power off. 2. Wait more than 15 minutes after the power off as in case of ipm failure, discharge mode may not work properly. 3. Remove all of the inverter pba connectors and wire that is fixed as screw. ...

  • Page 162

    Troubleshooting samsung electronics 159 ƒ diagnosis 4 : check compressor defect with tester 1. Power off. 2. Wait more than 15 minutes after the power off as in case of ipm failure, discharge mode may not work properly. 3. Prepare the digital multi tester. Resistance test normal value resistance val...

  • Page 163

    Samsung electronics 160 troubleshooting 4-4-13 case study – poor cooling caused by ipm overheated - problem : poor cooling - condition : compressor frequency doesn’t increase, ipm temperature is too high, low pressure is high - history : 13.05.07 trial operation : 13.05.27 inverter pba, emi pba, rea...

  • Page 164

    Troubleshooting samsung electronics 161 - conclusion : change bolt to new one, reattach the ipm ĺ problem solved date 6/5 6/5 od temp 41.6 40.8 high pressure 34.7 36.4 low pressure 10.5 9.9 comp1 61 82 comp2 64 85 current1 14.9 20.2 current2 14.2 19.3 ipm1 88 85 ipm2 90 86 reattach #2 solved date 5/...

  • Page 165

    Samsung electronics 162 troubleshooting 4-4-14 case study – related error with ipm error code e500 (inv 1) / e400 (inv 2) contents igbt module over heated error error result possibility 1) loose screw connection between igbt module and heat sink 2) no thermal grease on heat sink 3) defect of related...

  • Page 166

    Troubleshooting samsung electronics 163 4-4-15 case study – temperature sensor open/short ƒ disconnection or breakdown of relevant sensor. Replace pba. Fix yes no check sensor connector problem? Replace sensor. Yes no sensor resistance normal measure resistance name type error ambient temp. Sensor 1...

  • Page 167

    Samsung electronics 164 troubleshooting 4-4-16 case study – pressure sensor open/short ƒ disconnection or breakdown of relevant sensor. - e291 : high pressure sensor error - e296 : low pressure sensor error replace pba fix yes no check sensor connector problem? Fix replace sensor yes yes no no refri...

  • Page 168

    Samsung electronics 165 5. Pba diagram and parts list 5-1 ass'y pba main Ŷ push buttons type.

  • Page 169

    Pba diagram and parts list samsung electronics 166 ① cn22-download ② cn43-comm test ③ cn301-eeprom ④ cn42 - hub comm #1 : rx-down #2 : tx-down #3 : n-trst #4 : tdo #5 : tck #6 : tdi #7 : tms #8 : #9 : gnd #10 : vcc #1 : 12v #2 : inverter-inrush-out #3 : inverter-comm #4 : gnd #1 : gnd #2 : #3 : vcc ...

  • Page 170

    Pba diagram and parts list samsung electronics 167 5-1 ass'y pba main (cont.) Ŷ dip s/w type.

  • Page 171

    Pba diagram and parts list samsung electronics 168 ① cn22-download ② cn21-aspro download ③ cn43-comm test ④ cn301-eeprom #1 : rx-down #2 : tx-down #3 : n-trst #4 : tdo #5 : tck #6 : tdi #7 : tms #8 : #9 : gnd #10 : vcc #1 : vcc #2 : mode0 #3 : reset_main #4 : #5 : f_sclk #6 : f_sdat #7 : gnd #1 : 12...

  • Page 172

    Pba diagram and parts list samsung electronics 169 5-2 ass'y pba main-hub Ŷ ac.

  • Page 173

    Pba diagram and parts list samsung electronics 170 ① cn83-evi eev ② cn81-eev1 ③ cn82-eev2 ④ cn43-temp. Sensor #1 : eev3_a_out #2 : eev3_b_out #3 : eev3_a'_out #4 : eev3_b'_out #5 : 12v #1 : eev1_b'_out #2 : eev1_a'_out #3 : eev1_b_out #4 : eev1_a_out #5 : 12v #6 : 12v #1 : eev2_b'_out #2 : eev2_a'_o...

  • Page 174

    Pba diagram and parts list samsung electronics 171 5-2 ass'y pba main-hub (cont.) Ŷ dc.

  • Page 175

    Pba diagram and parts list samsung electronics 172 ① cn714-cch1 ② cn715-main-cooling ③ cn713-cch2 ④ cn704-hotgas-valve1 #1 : cch1 #2 : cch1 #1: main-cooling #2: main-cooling ##1 : cch2 #2 : cch2 #1 : hotgas bypass1 #2 : hotgas bypass1 ⑤ cn705-hotgas-bypass2 ⑥ cn703-evi-bypass ⑦ cn716-od-eev-valve ⑧ ...

  • Page 176

    Pba diagram and parts list samsung electronics 173 5-3 assy pba inverter - model : am080/100/120/200fxwanr* / am072/096/120/192hxwaf(j)r*.

  • Page 177

    Pba diagram and parts list samsung electronics 174 ① w- comp w ② u-comp u ③ v-comp v ④ cn22-download #1 : comp w #1 : comp u #1 : comp v #1 : rx-down #2 : tx-down #3 : n-trst #4 : tdo #5 : tck #6 : tdi #7 : tms #8 : #9 : gnd #10 : vcc ⑤ cn32 – main comm ⑥ reactor (wire connection) ⑦ cn91- fan dc ⑧ c...

  • Page 178

    Pba diagram and parts list samsung electronics 175 5-3 assy pba inverter (cont.) - model : am300kxwanr* / am240kxwaf(j)r*.

  • Page 179

    Pba diagram and parts list samsung electronics 176 ① w-comp w ② u-comp u ③ v-comp v ④ cn22-download #1 : comp w #1 : comp u #1 : comp v #1: rx-down #2: tx-down #3: boot #4: tdo #5: tck #6: tdi #7: tms #9: gnd #10: vcc ⑤ cn32 – main comm ⑥ cn702-reactor1 ⑦ cn701-reactor2 ⑧ cn91-fan dc #1 : 12v-main #...

  • Page 180

    Pba diagram and parts list samsung electronics 177 ① cn23- inverter 220v ② cn21-fan a ③ cn22-main 220 ④ rst- rst input #1 : ac #2 : #3 : ac #1 : r #2 : s #3 : t #1 : ac #2 : ac t-in s-in r-in 5-4 ass’y pba emi - model : am080/100/120/200fxwanr* / am072/096/120/192hxwaf(j)r*.

  • Page 181

    Pba diagram and parts list samsung electronics 178 5-4 ass’y pba emi (cont.) - model : am300kxwanr* / am240kxwaf(j)r*.

  • Page 182

    Pba diagram and parts list samsung electronics 179 ① cn23-inverter 220v ② cncn108-hub 220v ③ cn502-communication ④ cn501-communication #1 : ac live #2 : #3 : ac neutral #4 : #5 : ac neutral #1 : ac live #2 : #3 : ac neutral #1 : earth (pe) #1 : r-out ⑤ cn106-s out ⑥ cn107-t out ⑦ cn41-earth ⑧ cn101-...

  • Page 183

    Pba diagram and parts list samsung electronics 180 ① cn44 ② cn36 ③ cn#44 ④ cn45 ⑤ cn55 #1 : f1 #2 : f2 #1 : of1 #2 : of2 #1 : r1 #2 : r2 gnd #1 :f1 #2 :f2 #3 :of1 #4 :of2 #5 :r1 #6 :r2 5-5 sub-comm.

  • Page 184

    Samsung electronics 181 samsung electronics 182 6. Wiring diagram this document can not be used without samsung’s authorization. '%$ 6-1 am080/100/120/200fxwa**.

  • Page 185

    Samsung electronics 183 wiring diagram samsung electronics 184 this document can not be used without samsung’s authorization. 6-2 am300fxwa**.

  • Page 186

    Samsung electronics 185 wiring diagram 6-3 field wiring electrical wiring work ఐ when installing outdoor units in module, select the power supply cable according to the sum of outdoor unit capacity. (refer to the table for each model) ex) outdoor unit installation (am100fxw 6 + am120fxw6) ƒ this dev...

  • Page 187

    Wiring diagram samsung electronics 186 6-3 field wiring (cont.) electrical wiring work (cont.) power and communication cable configuration - main power and the ground cable must be withdrawn through the knock-out hole on the bottom-right or right side of the cabinet. - withdraw the communication cab...

  • Page 188

    Wiring diagram samsung electronics 187 electrical wiring work (cont.) specification of cable and connecting method - connect the cables to the terminal board with solderless ring terminals. - properly connect the cables by using certified and rated cables and make sure to fix them properly so that e...

  • Page 189: 7. Piping Diagram

    Samsung electronics 188 no part name abbreviation symbol function 1 inveter compressor inv this type of compressor uses a drive to control the compressor motor speed to modulate cooling capacity. 2 outdoor heat exchanger (heat exchanger - main (outdoor unit)) hx_phe by heat exchange of the water air...

  • Page 190

    Piping diagram samsung electronics 189 no part name abbreviation symbol function 21 4way valve (solenoid valve-4way) v_4w it determines the cooling / heating operation mode. (the valve signal when the heating operation is on) 22 discharge temp. Sensor (thermistor-discharge pipe) t_d measure the temp...

  • Page 191

    Samsung electronics 190 piping diagram 7-1-1 am300kxwanr*, am240kxwaf(j)r* (dvm s water heat recovery) this document can not be used without samsung’s authorization. 7-1 piping diagram (cont.).

  • Page 192

    Piping diagram samsung electronics 191 7-1-2 am200fxwanr*, am192hxwaf(j)r (dvm s water heat recovery) this document can not be used without samsung’s authorization. 7-1 piping diagram (cont.).

  • Page 193

    Samsung electronics 192 piping diagram 7-1-3 am300kxwanr*, am240kxwaf(j)r* (dvm s water heat recovery) this document can not be used without samsung’s authorization. 7-1 piping diagram (cont.).

  • Page 194

    Piping diagram samsung electronics 193 7-2-1 cooling operation(h/r) cooling operation main cooling oper. Heating operation main heating oper. 1 2 3 4 6 7 8 9 5 high temperature & pressure gas high temperature & pressure liquid low temperature & pressure gas low temperature & pressure liquid unit out...

  • Page 195

    Samsung electronics 194 piping diagram 7-2-2 main cooling operation(h/r) cooling outdoor heat exchanger (ohx) indoor fan motor (ifm) cooling outdoor heat exchanger (ohx) indoor fan motor (ifm) cooling outdoor heat exchanger (ohx) indoor fan motor (ifm) heating outdoor heat exchanger (ohx) indoor fan...

  • Page 196

    Piping diagram samsung electronics 195 7-2-3 heating operation(h/r) 1 9 2 7 8 ac v_pr receiver e_m t_s t_co hx_phe t_w v_mc bv_hp cv_hr cv_mc v_hg2 ipmc1 ipmc2 bv_hg bv_lg t_eo v_eb hx_ic t_ei e_evi t_l cv_l2 v_l cv_l bv_l v_ar ps_h v_4w v_hc cv_hc cooling operation main cooling oper. Heating operat...

  • Page 197

    Samsung electronics 196 piping diagram 7-2-4 main heating operation(h/r) high temperature & pressure gas high temperature & pressure liquid low temperature & pressure liquid low temperature & pressure gas 6 7 8 9 ( ) c 1 9 2 7 8 ac v_pr receiver e_m t_s t_co hx_phe t_w v_mc bv_hp cv_hr cv_mc v_hg2 i...

  • Page 198

    Piping diagram samsung electronics 197 7-3-1 basics 7-3-1-1 p-h diagram p-h diagram in the following p-h diagram, the horizontal and vertical axes indicate enthalpy and pressure respectively. This diagram shows material properties for refrigerant. ƒ the process where gas refrigerant becomes liquid r...

  • Page 199

    Samsung electronics 198 piping diagram 7-3-1 basics (cont.) 7-3-1-2 refrigeration cycle basic refrigeration cycle the following figure shows the basic refrigeration cycle. ƒ difference between discharge temperature and high pressure saturation temperature is referred to as discharge super- heated de...

  • Page 200

    Piping diagram samsung electronics 199 points of refrigerant control (cooling operation) cooling mode is affected by the quantity, capacity, and fan speed of active indoor units. Indoor air temperature and humid- ity also affect the mode. ƒ adjusting the compressor capacity adjust the compressor spe...

  • Page 201

    Samsung electronics 200 piping diagram points of refrigerant control (heating operation) cooling mode is affected by the quantity, capacity, and fan speed of active indoor units. Indoor air temperature and humid- ity also affect the mode. ƒ adjusting the compressor capacity adjust the compressor spe...

  • Page 202

    Piping diagram samsung electronics 201 7-3-2-1 actuator 7-3-2 control compressor – capacity control ƒ purpose adjust the compressor operation frequency through fuzzy control. This adjusts the capacity according to load in cooling or heating mode. ƒ concept the compressor frequency is adjusted throug...

  • Page 203

    Samsung electronics 202 piping diagram 7-3-2-1 actuator (cont.) 7-3-2 control (cont.) compressor – capacity control ƒ the target pressure value is as in the table and the initial setting value is 8.0 kgf/cm2,g. The target pressure is adjusted considering the rise and fall of the pressure in the pipe...

  • Page 204

    Piping diagram samsung electronics 203 ƒ ,qkhdwlqjfdvh 7khfdsdflw\riwkhfrpsuhvvrulvfrqwuroohge\dvvxplqjwkhwdujhwsuhvvxuhgxulqjdkhdwlqjrshudwlrqsurfhvv 0hdvxuhwkhsuhvvxuhxvlqjwkhsuhvvxuhvhqvrukljksuhvvxuhvhqvrulqvwdoohglqwkhrxwgrruxqlw,qfdvhwkh phdvxuhgydoxhlvorzhuwkdqwkhwdujhwsuhvvxuhhqkdqfhwkhrshud...

  • Page 205

    Samsung electronics 204 piping diagram compressor – module capacity control ƒ purpose improve efficiency through appropriate capacity distribution among units. Maximize the lifespan through equalization of the duration of operation among outdoor units. ƒ concept the duration of operation is equally ...

  • Page 206

    Piping diagram samsung electronics 205 2shudwlrqridfrpsuhvvruvkdooehshuiruphgdiwhudgmxvwlqjsulrulw\wrsuhyhqwrshudwlqjwlphiurpehlqjfrqfhq wudwhgrqrqo\fhuwdlqfrpsuhvvru$ggwkhiluvwsulrulw\wrdfrpsuhvvruzlwkohvvrshudwlrqdowlphdffxpxodwhg gxulqjwkhrshudwlrqridqrxwgrruxqlw 2shudwhdgglwlrqdofrpsuhvvrulqfdvh...

  • Page 207

    Samsung electronics 206 piping diagram electronic expansion valve – main (main eev) ƒ purpose control the eev to adjust the refrigerant flow according to the amount of heat exchanged by the outdoor heat exchanger in heating mode. ƒ concept the valve is fully opened in cooling mode. The eev step is r...

  • Page 208

    Piping diagram samsung electronics 207 electronic expansion valve – evi (evi eev) ƒ purpose control the evi eev to secure a subcooling degree in cooling mode. Control the evi eev to optimize the performance in heating mode. ƒ concept the evi eev is regulated through pd control to secure the target s...

  • Page 209

    Samsung electronics 208 piping diagram solenoid valve – evi, solenoid valve - evi bypass solenoid valve - hot gas bypass solenoid valve - hot gas bypass 2 ƒ purpose switch between evi bypass mode, evi on mode, and evi off mode, depending on the evi eev status. ƒ concept - solenoid valve – evi : when...

  • Page 210

    Piping diagram samsung electronics 209 solenoid valve – main eev ƒ purpose in main cooling mode, enable the main eev to control the amount of refrigerant flowing in the cooling indoor units. ƒ concept - in main cooling mode, the valve is closed to prevent refrigerant from flowing using check valve –...

  • Page 211

    Samsung electronics 210 piping diagram solenoid valve - accumulator oil return (arv) ƒ purpose return oil stagnating in the accumulator. ƒ concept - during compressor operation, the valve is opened to return oil stagnating in the accumulator. - the valve is closed to protect the compressor in start-...

  • Page 212

    Piping diagram samsung electronics 211 safety start ƒ purpose - protect the system and compressors by preventing poor lubrication due to liquid compression or oil foaming. - enable high-speed cooling and heating through fast start-up if there is no risk of liquid compression. ƒ concept - a start-up ...

  • Page 213

    Samsung electronics 212 piping diagram safety start – cold start ƒ purpose protect the system and compressors by preventing poor lubrication due to liquid compression or oil foaming. ƒ concept - a low start-up frequency is used to protect the compressors from liquid compression as well as poor lubri...

  • Page 214

    Piping diagram samsung electronics 213 safety start – quick start ƒ purpose enable high-speed cooling and heating through quick start-up ƒ concept compressors start at the same time to quickly improve the performance. ƒ control specifications in detail - condition(s) required to enter quick start mo...

  • Page 215

    Samsung electronics 214 piping diagram safety start – normal start ƒ purpose stable start-up in a low-temperature section with overload ƒ concept compressors start in sequential order to ensure stable operation if the indoor unit operation ratio is low or there is an overload. ƒ control specificatio...

  • Page 216

    Piping diagram samsung electronics 215 cooling operation ƒ purpose enable cooling in the entire target space. ƒ control specifications in detail - condition(s) required to enter quick start mode: [ a & b ] ƒ refrigerant flow heat pump actuator abbrev. - normal cooling compressor comp operation targe...

  • Page 217

    Samsung electronics 216 piping diagram 7-3 functions (cont.) 7-3-2-3 normal operation modes (cont.) 7-3-2 control (cont.) ƒ refrigerant flow heat recovery.

  • Page 218

    Piping diagram samsung electronics 217 heating operation ƒ purpose enable heating in the entire target space. ƒ control specifications in detail ƒ refrigerant flow heat pump 7-3 functions (cont.) 7-3-2-3 normal operation modes (cont.) 7-3-2 control (cont.) ൹ ൹ ൹ vœ›‹––™goŒˆ›glŸŠˆ•ŽŒ™govop vœ›‹––™g...

  • Page 219

    Samsung electronics 218 piping diagram 7-3 functions (cont.) 7-3-2-3 normal operation modes (cont.) 7-3-2 control (cont.) heat recovery.

  • Page 220

    Piping diagram samsung electronics 219 main cooling operation ƒ purpose switch to heating mode on some indoor units while using cooling mode ƒ control specifications in detail 7-3 functions (cont.) 7-3-2-3 normal operation modes (cont.) 7-3-2 control (cont.) actuator abbrev. - normal cooling compres...

  • Page 221

    Samsung electronics 220 piping diagram ƒ refrigerant flow 7-3 functions (cont.) 7-3-2-3 normal operation modes (cont.) 7-3-2 control (cont.).

  • Page 222

    Piping diagram samsung electronics 221 main heating operation ƒ purpose switch to cooling mode on some indoor units while using heating mode. ƒ control specifications in detail 7-3 functions (cont.) 7-3-2-3 normal operation modes (cont.) 7-3-2 control (cont.) actuator abbrev. - normal cooling compre...

  • Page 223

    Samsung electronics 222 piping diagram ƒ refrigerant flow 7-3 functions (cont.) 7-3-2-3 normal operation modes (cont.) 7-3-2 control (cont.).

  • Page 224

    Piping diagram samsung electronics 223 oil return operation ƒ purpose perform oil return after a specified amount of time has elapsed in order to prevent an insufficient amount of oil in compressors. ƒ concept the compressor capacity is raised to increase the amount of refrigerant circulation. This ...

  • Page 225

    Samsung electronics 224 piping diagram ƒ refrigerant flow heat pump - cooling heat pump - heating 7-3 functions (cont.) 7-3-2-4 special operation modes (cont.) 7-3-2 control (cont.).

  • Page 226

    Piping diagram samsung electronics 225 ƒ refrigerant flow heat recovery - cooling 7-3 functions (cont.) 7-3-2-4 special operation modes (cont.) 7-3-2 control (cont.).

  • Page 227

    Samsung electronics 226 piping diagram 7-3 functions (cont.) 7-3-2-4 special operation modes (cont.) 7-3-2 control (cont.) ƒ refrigerant flow heat recovery - heating.

  • Page 228

    Piping diagram samsung electronics 227 high pressure protection ƒ purpose prevent abnormal high pressure to protect the system and compressors. ƒ concept the compressor operation frequency is lowered to decrease the high pressure. ƒ control specifications in detail - the compressor operation frequen...

  • Page 229

    Samsung electronics 228 piping diagram low pressure protection ƒ purpose prevent abnormal low pressure to protect the system and compressors. ƒ concept the compressor operation frequency is lowered to increase the low pressure. The hotgas bypass valve is opened to bypass the high pressure to the suc...

  • Page 230

    Piping diagram samsung electronics 229 1rupdo2shudwlrq +3'rzqduhd +]'rzqduhd +]+rogduhd +3'rzquhohdvh +]' rzquhohdvh +]+roguhohdvh /r z 3uhv vx uh nj i fp j cooling compressor trip (e410) after staying in this phase for a max of 3 min 1rupdo2shudwlrq +3'rzqduhd +]'rzqduhd +]+rogduhd +3'rzquhohdvh +]...

  • Page 231

    Samsung electronics 230 piping diagram compression ratio protection ƒ purpose prevent compressor damage due to abnormal operation. Failure may occur due to an overload of compressors if the compression ratio is high. Compressor failure may occur due to poor lubrication if the compression ratio is lo...

  • Page 232

    Piping diagram samsung electronics 231 discharge temperature protection ƒ purpose prevent abnormal discharge temperature to protect the system and compressors. ƒ concept two-phase refrigerant is injected into compressors to decrease the discharge temperature. The compressor frequency is lowered to d...

  • Page 233

    Samsung electronics 232 piping diagram - if the compression ratio is low, 1st step increase of the superheat degree : the superheat degree for compressor suction is increased . 2nd step increase of the minimum compressor frequency : the minimum compressor frequency is increased to the predefined mod...

  • Page 234

    Piping diagram samsung electronics 233 discharge temperature protection ƒ purpose prevent abnormal discharge temperature to protect the system and compressors. ƒ concept two-phase refrigerant is injected into compressors to decrease the discharge temperature. The compressor frequency is lowered to d...

  • Page 235

    Samsung electronics 234 piping diagram dsh (discharge super heat) protection ƒ purpose prevent liquid compression to protect the system and compressors. ƒ concept the compressor suction super heat (sh) is raised to increase the dsh. - dsh = compressor discharge temp. – high pressure saturation temp....

  • Page 236

    Piping diagram samsung electronics 235 ipm (intelligent power module) temperature protection ƒ purpose prevent igbt module damage due to overheating. ƒ concept the compressor operation frequency is lowered to decrease the ipm temperature. ƒ control specifications in detail - the compressor frequency...

  • Page 237

    Samsung electronics 236 piping diagram maximum current limit (total) ƒ purpose prevent operation if the electric current capacity is exceeded. ƒ concept - the compressor operation frequency is lowered to prevent the electric current used to operate outdoor units from exceeding the maximum electric c...

  • Page 238

    Piping diagram samsung electronics 237 maximum current limit (each compressor) ƒ purpose prevent device damage due to excess current in circuit components or overheating of the ipm module. ƒ concept - the compressor operation frequency is controlled to prevent each inv pba input current (ct) from ex...

  • Page 239

    Samsung electronics 238 piping diagram freezing prevention ƒ purpose prevent frost in indoor units to protect compressors. Prevent other accidents. If there is frost in indoor units, refrigerant will not evaporate. As a result, compressor failure will occur due to liquid compression. If there is fro...

  • Page 240

    Piping diagram samsung electronics 239 operation modes ƒ purpose classify operation modes to provide optimum performance to satisfy different user preferences. ƒ concept cooling, heating, dehumidifying, and fan modes are provided, allowing users to control the indoor temperature and humidity. Operat...

  • Page 241

    Samsung electronics 240 piping diagram auto change over ƒ purpose automatically turn on heating or cooling mode according to the indoor temperature when using auto mode on hr model units. ƒ concept - how to turn on the mode : select auto changeover - heating or cooling mode automatically turns on af...

  • Page 242

    Piping diagram samsung electronics 241 thermo on/off ƒ purpose maintain the custom indoor temperature. ƒ concept thermo is turned on or off through comparison between the indoor temperature and set temperature. ƒ control specifications in detail ƒ notes - in case of cooling operation, if the indoor ...

  • Page 243

    Samsung electronics 242 piping diagram temperature compensation ƒ purpose compensate for variances in temperature affecting people differently in the room. Wind chill is caused by indoor tem- perature stratification when using the internal temp sensors on indoor units instead of using external temp ...

  • Page 244

    Piping diagram samsung electronics 243 fan control in thermo-off condition ƒ purpose regulate the fan operation specifications when the thermo is off to stop the fans if the thermo turns off. ƒ concept if the install options are changed, fans turn off when the thermo turns off in cooling mode. If th...

  • Page 245

    Samsung electronics 244 piping diagram fan speed control ƒ purpose provide automatic and manual fan speed control options, allowing users to obtain the desired fan speed. ƒ concept auto control automatically adjusts the fan speed according to the indoor temperature and set temperature. Manual contro...

  • Page 246

    Piping diagram samsung electronics 245 electronic expansion valve(eev) control ƒ purpose general control: maintain the amount of refrigerant flowing into the indoor units at the appropriate level. Inactive indoor unit control: prevent insufficient refrigerant due to refrigerant stagnating in the pip...

  • Page 247

    Samsung electronics 246 piping diagram drain pump control ƒ purpose discharge the condensate stagnating in the indoor unit's drainage plate to prevent the condensate from overflowing indoor units. ƒ concept if the amount of condensate stagnating in the drainage plate reaches a certain level where it...

  • Page 248

    Piping diagram samsung electronics 247 cold air prevention ƒ purpose control the fan speed to avoid discomfort of people in the room due to cold air in cooling mode or during the initial start- up of heating. ƒ concept - the fan does not operate if the indoor heat exchanger temperature is low in hea...

  • Page 249

    Samsung electronics 248 piping diagram emergency operation for compressor malfunction ƒ purpose perform emergency operation until servicing if there is compressor failure when using more than one compressor. ƒ concept faulty compressors are disabled and turned off. ƒ control specifications in detail...

  • Page 250

    Piping diagram samsung electronics 249 cooling capacity correction ƒ purpose control the cooling performance. ƒ concept the target evap in temperature is changed to control the low pressure in cooling mode. ƒ control specifications in detail - the target low pressure for outdoor units and the compre...

  • Page 251

    Samsung electronics 250 piping diagram heating capacity correction ƒ purpose control the heating performance. ƒ concept the target high pressure is changed to control the pressure in heating mode. ƒ control specifications in detail - the high pressure for outdoor units and the compressor operation f...

  • Page 252

    Piping diagram samsung electronics 251 current restriction rate ƒ purpose reduce the electric current used for operation. ƒ concept the max electric current (50% - 100%) is restricted. ƒ control specifications in detail - the maximum current for outdoor units is restricted according to the current r...

  • Page 253

    Samsung electronics 252 piping diagram high-head condition setting ƒ purpose secure performance and reliability when using units installed under a high-head condition. ƒ concept - control of the compressor frequency, outdoor fans, eev, and valves is optimized to facilitate the circulation of refrige...

  • Page 254

    Piping diagram samsung electronics 253 long-piping condition setting ƒ purpose secure performance and reliability when the units are used with long piping. ƒ concept - control of the compressor frequency, eev, and valves is optimized to facilitate the circulation of refrigerant in a long piping cond...

  • Page 255

    Samsung electronics 254 piping diagram energy control operation (eco) ƒ purpose energy saving mode: save energy by optimizing the operation load according to the indoor and outdoor temperatures. Power mode: quickly cool down the room by increasing the initial cooling speed. ƒ concept - energy saving...

  • Page 256

    Piping diagram samsung electronics 255 power mode: in cooling mode, the initial target low pressure is lowered to increase the compressor frequency increase speed. Performance power mode enabled target low pressure (8kgf/cm2,g by default) target low pressure (6.5kgf/cm2,g if power mode is enabled) d...

  • Page 257

    Samsung electronics 256 piping diagram channel address ƒ purpose identify multiple main outdoor units connected to upper-level controllers, such as dms and s-net3. ƒ concept - if the channel address is set, the same channel address is assigned to the sub outdoor units, indoor units, and mcus connect...

  • Page 258

    Piping diagram samsung electronics 257 channel address ƒ purpose identify multiple main outdoor units connected to upper-level controllers, such as dms and s-net3. ƒ concept - if the channel address is set, the same channel address is assigned to the sub outdoor units, indoor units, and mcus connect...

  • Page 259

    Samsung electronics 258 piping diagram speed operation max capacity restriction ƒ purpose enabling this setting will command the air conditioner to cool/heat faster at initial start-up. ƒ concept the cooling or heating speed is increased by raising the compressor frequency increase speed. ƒ control ...

  • Page 260: 8. Key Options

    Samsung electronics 259 8. Key options 8-1 system configuration Ŷ dip s/w type the 7-segment display indicates system power and communication status. Table a. 7-segment display Ŷ push button type 7-segment display push buttons 7-segment display sw53 sw51 sw52 sw57 sw53 dip switch push buttons rotary...

  • Page 261

    Samsung electronics 260 key options 8-2 list of field setting items no optional item purpose 00 emergency operation for compressor malfunction to exclude the faulty compressor from the system. (emergency use only) 01 cooling capacity correction by this option system cooling capacity can be increased...

  • Page 262

    Key options samsung electronics 261 sw58 k21 k22 k21 k22 ten one mcu 0 1 2 3 4 5 6 7 8 9 a b c d e f switch setting function remarks sw51/ sw52 setting total number of installed indoor unit sw51: tens digit, sw52: units digit setting can be done from the main outdoor unit only (sub unit: setting is ...

  • Page 263

    Samsung electronics 262 key options ఐ 1. Outdoor unit’s address setting – k7 & k8 : in module installation each odu will have different address. Address main unit sub1 unit sub 2 unit sub3 unit setting k7 : on, k8 : on k7 : on, k8 : off k7 : off, k8 : on k7 : off, k8 : off ఐ 2. Maximum capacity rest...

  • Page 264

    Key options samsung electronics 263 ఐ 3. Quantity of indoor unit : to set the quantity of connected indoor unit. (main outdoor unit only) - if the quantity of idu which is communicating with outdoor unit is different error will be displayed.(e201) idu quantity ex) idu 6ea ex) idu 26ea 10-digit 1-dig...

  • Page 265

    Samsung electronics 264 key options Ŷ push button type ● setting outdoor unit option switches : b type pba start outdoor unit address. Quantity of indoor units quantity of mcus. Save main unit? Heat recovery? Yes yes yes no no step button display description note outdoor unit address step1 outdoor u...

  • Page 266

    Key options samsung electronics 265 order display description 1 ƒ͑normal display : “ad 00” ƒ͑outdoor address is not set : “od nd” 2 ƒ͑press and hold simultaneously k1, k2 to enter the setting mode. (when entering the setting mode, letters are displayed as the left : “od 00”) - od means outdoor unit ...

  • Page 267

    Samsung electronics 266 key options 8-4 how to check the view mode using a tact switch setting outdoor unit key function installing and setting the option with tact switch and explanation of the functions setting the option 1. Press and hold k2 to enter the option setting. (only available when the o...

  • Page 268

    Key options samsung electronics 267 8-4 how to check the view mode using a tact switch (cont.) am080/100/120/200fxwa66 optional item input unit seg1 seg2 seg3 seg4 function of the option remarks emergency operation for compressor malfunction individual 0 0 0 0 disabled (factory default) e560 will oc...

  • Page 269

    Samsung electronics 268 key options 8-4 how to check the view mode using a tact switch (cont.) am080/100/120/200fxwa66 (cont.) optional item input unit seg1 seg2 seg3 seg4 function of the option remarks setting longpiping condition (setting is unnecessary if high-head condition is set.) main 0 9 0 0...

  • Page 270

    Key options samsung electronics 269 8-5-1 application of auxiliary heat module Ŷ introduction of auxiliary heat module auxiliary heat module configuration the indoor unit firmware may need to be updated depending on the date of indoor unit manufacture. Firmware installations instructions, which can ...

  • Page 271

    Samsung electronics 270 key options figure 4. External contact interface module: wiring diagram for auxiliary heat do not use contacts 1 and 2. Note: do not directly connect module to external contact. Use correctly sized external relays. Auxiliary heat sequence of operation when a call for heat occ...

  • Page 272

    Key options samsung electronics 271 Ŷ connecting the external contact software to the outdoor unit's main pba outdoor unit's main pba 7-seg display seg1 - seg4 from left push button external contact output (cn85) contact output of comp/error status to the outside is possible external contact input (...

  • Page 273

    Samsung electronics 272 key options Ŷ introduction mode select switch mixed operation-preventive control is used to prevent the hp (heat pump) from sending requests for different cycle operation modes to the same outdoor unit. Figure 4. External contact interface module: wiring diagram for auxiliary...

  • Page 274

    Key options samsung electronics 273 setting the dedicated mode according to the installation environment master indoor unit setting for wired remote control cooling/heating selector setting for outdoor unit upper-level controller setting item function indoor unit set dedicated mode using the master ...

  • Page 275

    Samsung electronics 274 key options Ŷ mcm-c200 (mode selector) • operation mode lock (cooling, heating, auto) • direct connection to outdoor unit • applied to dvm plus ii/iii, mini dvm outdoor units how to use 1. Connect the outdoor unit, according to the instructions in the installation manual. 2. ...

  • Page 276

    Key options samsung electronics 275 Ŷ mode select switch installation instructions components the mode select switch is shipped with the following parts: mode switch selector, assembled 3-wire male connector 3-wire female connector m4x16 screws(2) wiring harness installation 1. Disassemble the mode ...

  • Page 277

    Samsung electronics 276 key options 5. Shut off power to the outdoor unit. 6. Connect field-supplied wires between the outdoor unit circuit board at cn1 and the 3-wire female connector. Secure the wires in the connector with a small screw driver. 7. Attach the 3-wire female connector to the 3-wire m...

  • Page 278

    Key options samsung electronics 277 Ŷ connecting the mode select switch to the outdoor unit's main pba outdoor unit's main pba 7-seg display seg1 - seg4 from left push button option switch (opt1) use option setting to enable cooling or heating mode. How to use the mode select switch pin1-2 pin2-3 st...

  • Page 279: 9. Test Operation

    Samsung electronics 278 9-1 auto trial operation 9-1-1 overview of auto trial operation 1) what is the auto trial operation? Auto trial operation is an operation mode designed to provide guidelines for inspecting the status of the device installation and the main components for quick and accurate tr...

  • Page 280

    Test operation samsung electronics 279 4) valid temperature range for auto trial operation to ensure accurate inspection, perform auto trial operation at the indoor and outdoor temperature conditions shown below. - auto trial operation automatically switches between cooling and heating modes accordi...

  • Page 281

    Samsung electronics 280 test operation 6) trial operation (cooling/heating) this operation is designed to inspect items that are not inspected during auto trial operation. (1) how to enter the mode: see the instructions on key operation modes. (2) check the following during trial operation. - check ...

  • Page 282

    Test operation samsung electronics 281 9-1-2 auto trial operation flow chart 1) auto trial operation flow chart perform preliminary inspection. Perform auto trial operation - see the instructions on key operation modes. Error occurred? Issue a report on the auto trial operation result. Is there an i...

  • Page 283

    Samsung electronics 282 test operation 9-1-3 how to resolve ng items 1) indoor unit's thermistors ∙ what to inspect: indoor unit's thermistors (the temperature of the indoor air and the temperatures at the entrance and exit of the heat exchanger on the indoor unit) ∙ error code: none (“ng” is only i...

  • Page 284

    Test operation samsung electronics 283 2) outdoor unit's thermistors ∙ what to inspect: outdoor unit's thermistors (temperatures of outdoor air (or water temp), cond out, evi entrance/exit, suction, and liquid line) ∙ error code: none (“ng” is only indicated in the result report) ∙ how to determine ...

  • Page 285

    Samsung electronics 284 test operation 3) pressure sensor (when the outdoor unit is installed with two or more modules) ∙ what to inspect: pressure sensors (high and low pressures) ∙ error code: - high pressure sensor: e505 (“ng” is indicated in the result report) - low pressure sensor: e506 (“ng” i...

  • Page 286

    Test operation samsung electronics 285 4) pressure sensor (when only one outdoor unit is installed) ∙ what to inspect: pressure sensors (high and low pressures) ∙ error code: none (“ng” is only indicated in the result report) ∙ how to determine error: check the pressure difference between the high a...

  • Page 287

    Samsung electronics 286 test operation 5) ball valve (service valve) ∙ what to inspect: status of the outdoor unit's ball valve (service valve) ∙ error code: e503 (“ng” is indicated in the result report) ∙ how to determine error: check the variations of the operation frequency and pressure on the co...

  • Page 288

    Test operation samsung electronics 287 6) compressors ∙ what to inspect: compressor's operation electric current ∙ error code: none (“ng” is only indicated in the result report) ∙ how to determine error: compare the compressor's operation electric current and the reference electric current. ∙ perfor...

  • Page 289

    Samsung electronics 288 test operation 7) cycle status ∙ what to inspect: outdoor unit's operation cycle status ∙ error code: none (“ng” is only indicated in the result report) ∙ how to determine error: view the dsh status during operation. ∙ perform inspection according to the steps shown below. Ŷ ...

  • Page 290

    Test operation samsung electronics 289 8) 4-way valve ∙ what to inspect: outdoor unit's 4-way valve operation ∙ error code: none (“ng” is only indicated in the result report) ∙ how to determine error: check the variations of pressure when the 4-way valve is operating. ∙ perform inspection according ...

  • Page 291

    Samsung electronics 290 test operation 9) electronic expansion valve – evi (evi eev) ∙ what to inspect: outdoor unit's evi eev operation ∙ error code: none (“ng” is only indicated in the result report) ∙ how to determine error: check variations of the temperatures at the entrance and exit of the evi...

  • Page 292

    Test operation samsung electronics 291 9-1 auto trial operation (cont.) 10) electronic expansion valve – main (main eev) ∙ what to inspect: outdoor unit's main eev operation . (applicable only when performing auto trial operation in heating mode) ∙ error code: none (“ng” is only indicated in the res...

  • Page 293

    Samsung electronics 292 test operation 9-2 amount of refrigerant automatically checking through the detect operation is the ability to verify automatically for the amount of refrigerant. Start "k2" tact switch : press the 5 times check the amount of refrigerant check the amount of refrigerant refrig...

  • Page 294: 10. Nomenclature

    Samsung electronics 293 am 300 k x w a n r / eu (1) (2) (3) (4) (5) (6) (7) (8) buyer (1) classification am dvm (6) feature2 (grade) a standard + general temp. + module h high eer + low temp + module g high eer + general temp. + module s flagship + general temp. + module (7) rating voltage e 1ø, 220...

  • Page 295

    This service manual is a property of samsung electronics co., ltd. Any unauthorized use of manual can be punished under applicable international and/or domestic law. © samsung electronics co., ltd. February 2017. Printed in korea. Code no. Ac-00185e_1 *631*/2%$/6(59,&(3$571(51(7:25. $uhd :he6lwh (xu...