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Samsung IDH4400A, Service Manual

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Samsung IDH4400A Service Manual Download Page 34

Samsung Electronics

4-7

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 remote controller.

✽ 

“*” stands for the indoor unit address.

Install the outdoor unit thermistor at CN41.

NO

YES

YES

Replace the outdoor unit PCB

NO

Is the voltage across the thermistor 4.9V and

higher or 0.5V and lower?

Is the outdoor unit thermistor installed at CN41?

Check point :

- Defect of indoor unit

- Indoor unit thermistor defect

Replace the thermistor

 3-00216A(1)-TS  5/19/01 10:06 AM  Page 4-7

Summary of Contents for IDH4400A

Page 1: ...ion 3 Operating Instructions 4 Troubleshooting 5 Disassembly and Reassembly 6 Exploded Views and Parts List 7 Schematic Diagrams SERVICE Manual DUCT TYPE AIR CONDITIONER Cool IDH4400A DH44ZA1 A2 INDOO...

Page 2: ...nput Running current Indoor unit Outdoor unit INDOOR UNIT OUTDOOR UNIT Cooling Heating Cooling Heating Cooling Heating Fan speed at 0mmAq Air circulation Noise Level Sound pressure Heat exchanger Fan...

Page 3: ...it Condition Piping INDOOR UNIT OUTDOOR UNIT Compressor Heat exchanger Refrigerant Dimensions Weight Indoor unit Outdoor unit Pipe O D size Connection method Between motor output protection type row x...

Page 4: ...of suspension bolts 698 Space of suspension bolts 650 Outer dimensions Electrical component box 131 157 936 x 321 Dimension of outlet duct flange 936 x 321 Dimension of inlet duct flange 1110 Outer Di...

Page 5: ...1 4 Samsung Electronics Outdoor Unit Product Specifications 1420 415 930 840 385...

Page 6: ...ust 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 ADH4400G DH44ZA1 A2 3 380 415V 50Hz 30A 30A...

Page 7: ...3mm2 0 75mm2 100m Cable type Double insulation 3G Wired Remote Controller Wired Remote Controller 1 Cable Tie 2 Cable Clamp 5 M4 X 16 Tapped Screw 7 Caution Do Not keep the wired remote controller ca...

Page 8: ...semble the receiver display unit cover Caution Do NOT keep the receiver display unit cables with a 220V cable because the remote controller cables have low voltage Caution The optional kits must be in...

Page 9: ...Cable Specifications 7 Reassemble the centralized controller 2 4 Centralized Controller Installation Size of cables 0 75mm2 1 25mm2 Cable type Double insulation 2G Centralized Controller 1 Cable Tie 2...

Page 10: ...Cleaning Cycle Adjust the DIP switch SW2 in the main PCB to the desired position referring the table below Samsung Electronics 2 5 Switch No 4 Switch Position ON OFF Filter Cleaning Cycle 1 000 hours...

Page 11: ...he drain pump leave a 7mm space between the bottom of the drain pan and the drain pump 3 Connect the drain hose to the drain socket 4 Connect the cable to the electrical component box as shown in figu...

Page 12: ...R1 and R3 terminals in another indoor unit B 3 Connect the R1 and R3 terminals of B to any indoor unit C and connect the others as the same way 4 Remove the CN20 connectors on the sub PCBs except the...

Page 13: ...the centralized controller to the desired position referring to the table below 5 Adjust the rotary switch on the transmitter to the desired position referring to the table on page 2 11 Note You cann...

Page 14: ...onditioner each other And you must assign addresses to the air conditioners For further details on connecting air conditioners If the user would like to controller only one air conditioner make sure t...

Page 15: ...p to 16 air conditioners can be controlled with one wired remote controller Note If the user does not want to control a group do not remove the CN20 Connector 0 1 F Connected Removed Address Situation...

Page 16: ...up to sixteen air conditioners by using the centralized controller To use the controller you must assign addresses to the air conditioners For further details on connecting air conditioners If the us...

Page 17: ...2 12 Samsung Electronics MEMO...

Page 18: ...ess remote controller put on the option switch 4 of wired remote controller 3 Putting off the option switch 4 of wired remote controller disables the control by wireless remote controller 4 Put on the...

Page 19: ...e control by wireless remote controller installed in all chambers A P is disabled except the wired remote controller installed in the A chamber and the simultaneous use with the option item the centra...

Page 20: ...ect the R3 of indoor unit terminal board installed in each chamber with R3 Do not connect the terminal R2 of indoor unit terminal board from B to F chamber except A chamber The option item centralized...

Page 21: ...ed it has the 50bps transmission speed and when it has 60Hz power it has 60bps transmission speed The transmission data between the wired remote controller and indoor unit is shown as in the figure Si...

Page 22: ...for 3 minute by the forced cooling operation and the set is off after 3 minute The error occurring during the test operation is displayed on the wired remote controller windows and it shall be referr...

Page 23: ...If the current SET of chamber A is ON put the set off by pressing the ON OFF button Only at the SET off of chamber A the TEST mode is enabled Press the TEST BUTTON of wired remote controller for more...

Page 24: ...amsung Electronics 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...

Page 25: ...play Unit Wireless remote controller Outdoor unit Wired remote controller Indoor unit O chamber Transmitter Receiver Display Unit Wireless remote controller Outdoor unit Wired remote controller Indoor...

Page 26: ...t indoor unit and centralized controller Put on the power of installation completed set of each chamber Put on the power of centralized controller Samsung Electronics Installation Caution The communic...

Page 27: ...3 10 Samsung Electronics MEMO...

Page 28: ...unit 5 Indoor unit pipe sensor error Outdoor unit thermistor sensor PCB of the outdoor unit 6 Outdoor unit thermistor sensor error Drain pump Float switch Drain system DIP switch SW2 of the indoor uni...

Page 29: ...r Drain pump Float switch Drain system Float switch error Communication cables of indoor and outdoor units PCB of indoor and outdoor units Indoor and Outdoor communication error Wired remote controlle...

Page 30: ...nits PCB of indoor and outdoor units EA A Indoor and Outdoor communication error Wired remote controller cables Wired remote controller Main Sub PCB of the indoor unit EC Wired remote controller commu...

Page 31: ...controller and indoor unit Outdoor unit pipe thermistor error REFERENCE PART EC01 EC02 EC03 EC04 EC05 EC06 EC07 ERROR CODE Reservation LED flickering 1Hz period Operation LED and reservation LED flick...

Page 32: ...sung Electronics Trouble Shooting Trouble shooting by centralized controller ERROR CODE LED flickering ERROR DESCRIPTION Communication error between indoor unit and centralized controller REFERENCE PA...

Page 33: ...ard is flickering with 1 Hz Action items when 5 displays on the wired remote controller Trouble Shooting Indoor the indoor unit thermistor at CN8 NO YES YES Replace the indoor unit PCB NO Is the vlota...

Page 34: ...are flickering with 1Hz Action items when 6 displays on the wired remote controller stands for the indoor unit address Install the outdoor unit thermistor at CN41 NO YES YES Replace the outdoor unit...

Page 35: ...board and filter lamp are flickering with 1 Hz Action item when 9 displays on the wireless remote controller Trouble Shooting Check point Indoor unit defect Drain pump float switch defect Replace PCB...

Page 36: ...or unit mis connection Indoor unit PCB defect Outdoor unit PCB defect stands for the indoor unit address NO YES YES NO NO YES Indoor unit communication norma The Micom of outdoor unit is operating nor...

Page 37: ...communication line between indoor unit and wireless remote controller Indoor unit PCB defect Wired remote controller PCB defect 0 stands for the indoor unit address NO NO YES YES YES Connect correctly...

Page 38: ...rd is flickering with 1Hz Action item when D displays on the wired remote controller Trouble Shooting Check point Indoor unit pipe thermistor available or not Indoor unit PCB defect stands for the ind...

Page 39: ...controller PCB Defect of wireless remote controller receiving board PCB Indoor unit PCB defect YES YES YES NO NO NO NO YES YES NO Insert correctly Mis insertion of CN9 LED direct reverse direction che...

Page 40: ...tion Is the wired remote controller energized when the power is reset Is the on off button command of wired remote controller reflected on the set When the power is applied again after removing the po...

Page 41: ...ce PCB Is the power source normal AC220 240 50Hz Is the wire harness for motor connection good Is the terminal contact of fan motor condenser good During the wind control does it change to breeze mild...

Page 42: ...Is the terminal contact of fan motor condenser good Does the outdoor fan motor changes to mild and strong wind during the cooling operation Do the RY73 RY74 operate Normal Check and replace the micom...

Page 43: ...emperature set higher than the current one during the cooling operation Is the desired temperature set lower than the current one during the cooling operation Is the RY71 on and compressor operting wh...

Page 44: ...re harness Replace indoor unit PCB NO NO NO YES After check of the short circuit of harness for connecting the up and down swing motor operate the set in the cooling mode and oeprate the wind directio...

Page 45: ...ndoor unit micom NO Repace the RY72 NO Replace the indoor PCB Check to confirm whether the wire is connected correctly between indoor unit and outdoor unit After checking of the shortage for the conne...

Page 46: ...nit on Is the DC5V of indoor unit normal Is the wire connected correctly between indoor unit and outdoor unit After check of short circuit on the wire between indoor unit and connector wire of float s...

Page 47: ...replace ventilator Is the voltage of CN6 no 1 and 3 of indoor unit AC220V AC240V Is the output DC112V DC5V normal Is the wire correctly connected between indoor unit and outdoor unit after check of s...

Page 48: ...1 and 3 of CN1 AC220V AC240V After checking the correct connection between indoor unit and outdoor unit and check again Check point Indoor unit AC220V AC240V input voltage DC12V output DC5V output ou...

Page 49: ...no 3 and TB1 AC220V AC24V Check to confirm whether the wire is connected correctly between indoor unit and outdoor unit Check point Outdoor unit AC220V AC240V input power DC12V output DC5V output Powe...

Page 50: ...orrect Check point Defect on the address assignment for the relay equipment connected with centralized controller Defect on centralized controller PCB Defect on the indoor unit PCB Reset the power of...

Page 51: ...4 24 Samsung Electronics MEMO...

Page 52: ...name Procedures Picture Disassembly of indoor unit disassembly of the control box Disassemble 1 screw for fixing the control box cover Check internal connection of the control box Separate the wire co...

Page 53: ...ures Picture Fan and motor Separate 4 screws fixed on the unit base Pull the panel for fixing fan and motor as following figure Then the fan and motor panel are separated from the unit If the motor su...

Page 54: ...eaning a filter Disassemble 14screws on side part then cabinet and the unit are separated It is possible to clean the surface of heat exchanger and drain board After cleaning heat exchangers and drain...

Page 55: ...msung Electronics Disassembly and Reassembly No Part name Procedures Picture Cleaning a filter Clean the filter with removing downward After cleaning the filter insert and fasten it with bracket for f...

Page 56: ...Procedures Picture Outdoor Control box Outdoor unit of a package airconditioner Separate a front tightening part Separate the tightening part from side The connection status of control box wiring Out...

Page 57: ...e unit Remove the top cover Remove the control box cover Pull out the assembly cable Remove the side of cabinet Remove the front side of cabinet When assembling the parts check whether each parts and...

Page 58: ...Samsung Electronics 5 7 MEMO...

Page 59: ...6 Exploded Views and Part LIst 6 1 Indoor Unit 6 1 Samsung Electronics 1 12 5 3 11 12 7 10 1 10 4 10 3 9 10 10 2 10 5 8 2 4 13 3 13 2 13 1 13 13 7 13 4 13 6 13 5 13 9 13 10 13 8 6...

Page 60: ...OR HOLDER MOTOR BASE MOTOR BRACKET MOTOR GUIDE BLOWER RH Specification ADC 35ZH3 DUCT TYPE ADC 35ZH3 DUCT TYPE ADC 35ZH3 DUCT TYPE ADH4400G ADC 35ZH3 ADC 35ZH3 DUCT TYPE ADC 35ZH3 DUCT TYPE ADC 35ZH3...

Page 61: ...6 2 Outdoor Unit 6 3 Samsung Electronics 2 3 4 5 6 7 25 24 21 23 22 9 18 1 8 27 13 15 10 11 12 20 14 26 19 17 16...

Page 62: ...RAME ASSY CONTROL OUT PARTITION ASSY BASE OUT ASSY VALVE 3 8 ASSY VALVE 3 4 ASSY CABI OUT SD ASSY CABI OUT UP SD INSULATION SOUND ASSY COMP SCROLL GROMMET MOUNT HANDLE ASS Y 4WAY V V ASS Y CHECK V V A...

Page 63: ...6 5 Samsung Electronics MEMO...

Page 64: ...w volume may drop too low at each air outlet This problem can be solved by increasing the fan speed using the following procedure 1 Remove the screw on the electrical component box and remove the cove...

Page 65: ...Samsung Electronics 7 2 Indoor Unit Outdoor Unit Allowable pipe length Max 50m Allowable drop distance Max 25m 7 2 Refrigerant Cycle Diagram...

Page 66: ...7 3 Samsung Electronics 7 3 Wiring Diagram 7 3 1 Indoor Unit DUCT TYPE AIRCONDITIONER...

Page 67: ...Samsung Electronics 7 4 7 3 2 Outdoor Unit DUCT TYPE AIRCONDITIONER...

Page 68: ...7 5 Samsung Electronics 7 4 PCB Diagrams 7 4 1 Indoor Unit PD DH3200 08...

Page 69: ...ADER SMW250 11 WHT CN11 CONNECTOR HEADER SMW250 07 RED CN8 CONNECTOR HEADER SMW250 04 WHT CN14 CONNECTOR HEADER SMW250 02 WHT CN7 CONNECTOR HEADER SMW250 07 WHT CN20 CONNECTOR HEADER SMW250 02 RED CN1...

Page 70: ...10 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 R606 R CARBON 330 J 1 8W R401 R402 R METAL 6 8K F 1 8W R611 R CARBON 100K J 1 8W R205 R206 R CARBON 10 J 1...

Page 71: ...Samsung Electronics 7 8 Parts list 7 4 2 Outdoor Unit PD DH3200 S4...

Page 72: ...05 R411 R CARBON 1K J 1 8W R410 R406 R408 R409 R CARBON 3 9K J 1 8W R703 R CARBON 4 7K J 1 4W R301 R CARBON 620 J 1 8W R302 R CARBON 470 1 4W R902 R909 R CARBON 470 1 2W R303 R CARBON 12K J 1 8W R202...

Page 73: ...444 4 594 4 749 4 912 5 080 5 256 5 439 5 630 5 828 6 033 6 246 6 468 6 699 6 941 7 192 7 455 7 729 8 015 8 313 THERMISTOR MODEL 103AT THMPERATURE C 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13...

Page 74: ...7 11 Samsung Electronics 7 6 Circuit Diagrams 7 6 1 Wired Remote Controller...

Page 75: ...Samsung Electronics 7 12 7 6 2 Centralized Controller...

Page 76: ...7 6 3 Indoor Unit Samsung Electronics 7 13...

Page 77: ...7 6 4 Outdoor Unit 7 14 Samsung Electronics...

Page 78: ...u need more information please see the service website Itself Solution Integrated technology supporting electronic library http itself sec samsung co kr Copyright 2001 By Samsung Electronics Co Ltd Al...

Page 79: ...ELECTRONICS Samsung Electronics Co Ltd Apr 2001 Printed in Korea Code No DB81 00216A 1...

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