Samsung IDH4400A Service Manual
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Samsung IDH4400A Service Manual

Samsung IDH4400A Service Manual

Duct type air conditioner
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SERVICE
AIR CONDITIONER
DUCT TYPE AIR CONDITIONER
TYPE
INDOOR UNIT
ADH4400G
IDH4400A
DH44ZA1(A2)
DH44ZA1(A2)
Manual
(Cool)
OUTDOOR UNIT
UDH4400G
DH44ZAX
CONTENTS

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Summary of Contents for Samsung IDH4400A

  • Page 1: Table Of Contents

    DUCT TYPE AIR CONDITIONER (Cool) TYPE INDOOR UNIT OUTDOOR UNIT UDH4400G ADH4400G IDH4400A DH44ZAX DH44ZA1(A2) DH44ZA1(A2) SERVICE Manual AIR CONDITIONER CONTENTS 1. Product Specifications 2. Installation 3. Operating Instructions 4. Troubleshooting 5. Disassembly and Reassembly 6. Exploded Views and Parts List...

  • Page 2: Product Specifications

    Siroco motor output Dimensions 1,110 70/78 Weight Net/Gross Outdoor Fan speed r.p.m. unit r.p.m. Air circulation (Hi) /min Sound pressure level dB(A) propeller type motor output type scroll Compressor ZR61KC-TFD model Samsung Electronics...
  • Page 3 ˚C Outdoor unit Heat(DB/WB) ˚C Piping Liquid 9.52(3/8”) mm(inch) Pipe O.D. 19.05(3/4”) mm(inch) size Flare Connection method Height Max. 25 Between Max. 50 Pipe length Notice : This model is tested under the external static pressure of 14mmAq Samsung Electronics...

  • Page 4: Samsung Electronics

    • Indoor unit 1023 1042(Space of suspension bolts) 936 x 321(Dimension of outlet duct flange) Inspection area 1200mm Pipe connection port (Liquid pipe:ø9.52mm, Gas pipe:ø19.05mm) Drain pipe connection port (Out diameter:ø27.2mm) 936 x 321(Dimension of inlet duct flange) 1110(Outer Dimensions) Samsung Electronics...
  • Page 5 Product Specifications • Outdoor Unit Samsung Electronics...

  • Page 6: Installation

    Min. size of electric Wires H07RN-F, 4G, 1.25mm main power, you should connect each from/to the indoor/outdoor unit cable(L1, L2 & L3) properly. 20m or less H07RN-F, 3G, 2.5mm Size of electric input wires 50m or less H07RN-F, 3G, 4.0mm Samsung Electronics...

  • Page 7: Wired Remote Controller Installation

    • All optional kits cables should be installed according to the national wiring rules and you must install them in the wall not to be touched by users. Wired Remote Controller Samsung Electronics...
  • Page 8 & display unit and connect the other end of the wire to the electrical component box as shown in figure. Caution : •Do NOT keep the receiver & display unit cables with a 220V cable because the remote controller cables have low voltage. Samsung Electronics...
  • Page 9 •Before installing the optional kits, ensure that you have turned off the main power. •All optional kits cables should be installed according to the national wiring rules and you must install them in the wall not to be touched by users. Samsung Electronics...

  • Page 10: Air Filter Installation

    •The optional kits must be installed by an installation specialist. •Before installing the optional kits, ensure that you have turned off the main power. •The optional air filter has to be cleaned only by an authorized person or service agent. Samsung Electronics...
  • Page 11 Switch No. Switch Position Drain pump Note : Wrap the drain tube outlet with an insulating materials. 3. Connect the drain hose to the drain socket. Drain pump hose Samsung Electronics...
  • Page 12 “0”). 6. Adjust the DIP switch No. 2 in the wired remote controller to “ON” position. Note : You cannot install the centralized controller when the wired remote controller for a group has already been installed. Samsung Electronics...
  • Page 13 5. Adjust the rotary switch on the transmitter to the desired position referring to the table on page 2-11. Centralized Controller Note : You cannot install the centralized controller when the wired remote controller for a group has already been installed. Samsung Electronics...

  • Page 14: Setting Up Option Switches

    Indoor Fan Motor Speed Normal High speed Caution : • If you do not adjust the switch when not installing the drain pump, " 9" error will occurs. If this happens, adjust the No.2 and No.3 switches to the "OFF" position. Samsung Electronics...
  • Page 15 Option Item Type of unit Cooling only Heat pump Number of air conditioner(s) controlled Group One indoor unit by the wired remote controller controlling controlling Basic specification Using wireless remote controller Can be used Cannot be used 2-10 Samsung Electronics...

  • Page 16: Centralized Controller

    Note : Before setting up the options, always make sure that you have switched off the main power. Centralized Controller DIP Switch(DS01) Note : After adjusting the options, you should supply the power. Transmitter Rotary Switch(DS01) Otherwise, the options will not be applied. Samsung Electronics 2-11...
  • Page 17 MEMO 2-12 Samsung Electronics...

  • Page 18: Operating Instructions

    Indoor unit control Group control Indoor unit 1 chamber control Basic specification Fixed to OFF Combined use of Able to operate of wired Disable to operate the wireless remote remote controller wireless remote controller controller (SLAVE MODE) (MASTER MODE) Samsung Electronics...
  • Page 19 “P”. terminal board installed to the “R1”,”R2”,”R3” • Put on the set power installed in each chamber. of wired remote controller, respectively. • Adjust the address of rotary switch of indoor unit PCB in “A” chamber to “0”. Samsung Electronics...
  • Page 20 • Put on the set power where the wired remote controller is installed. Caution : • The option can be applied when the power is put again after resetting the option of wired remote controller. Be sure to keep the set power on/off after option setting. Samsung Electronics...
  • Page 21 • For the communicating time with 16 chambers during the normal operation, 32 seconds are required and for the time with 16 chamber during the reservation operation, 64 seconds are required due to the increase of communicating data. Samsung Electronics...
  • Page 22 • The first digit of error code displayed during the single operation and group operation may be different. The first digit(MSB) stands for the address of the set where the error occurs. Since it is the single operation, the address of SET is “0”. Samsung Electronics...
  • Page 23 • For the reservation operation, the communication time between all 16 chambers is required for 64 seconds due to the increase of communication data. • The first digit (MSB) of error code displayed during the group operation stands for the address of SET where the error occurs. Samsung Electronics...
  • Page 24 3 kinds of level. BUTTON NAME FUNCTION ALL1 • To put on all 16 chambers' set. ALL0 • To put off all 16 chambers' set. "01" ~ "16" • To put on/off set assigned with the number. Samsung Electronics...
  • Page 25 + centralized controller) System 3-3-3 Chambers centralized control system connection diagram "A" chamber "B" chamber "P" chamber "C" ~ "O" chamber Indoor unit Indoor unit Indoor unit Transmitter Transmitter Transmitter 01 02 01 02 01 02 01 02 Samsung Electronics...
  • Page 26 • After the resetting of operation level of centralized controller, it is not necessary to reset the power differently from that of wired remote controller. In other words, the operation level can be reset even during the operation if required. Samsung Electronics...
  • Page 27 MEMO 3-10 Samsung Electronics...

  • Page 28: Troubleshooting

    Three phase power incorrect connecting Three phase power connecting error PCB of the outdoor unit (In case of three phase power models) Example : “39” means the address “3” indoor unit has a trouble with a float switch. Samsung Electronics...

  • Page 29: Wireless Remote Controller

    PCB of the outdoor unit Three phase power incorrect Three phase power connecting connecting error PCB of the outdoor unit (In case of three phase power models) : OFF : Blinking : Blinking at once : Blinking alternately Samsung Electronics...
  • Page 30 Outdoor unit coil temperature from outdoor pipe sensor Press three times Defrost setting option/Power type Press four times Indoor unit coil temperature from indoor pipe sensor Press five times Indoor unit setting temperature Press six times Inside temperature from indoor thermistor sensor Samsung Electronics...

  • Page 31: Trouble Shooting

    EC06 Outdoor unit pipe thermistor error EC07 The asterisk mark “ * ” + “ERROR” CODE of wired remote controller stands for the set number. ex) ERROR CODE “39” is the FLOAT SWITCH OPEN ERROR of SET no.3. Samsung Electronics...
  • Page 32 Trouble Shooting Trouble shooting by centralized controller ERROR DESCRIPTION REFERENCE PART ERROR CODE Communication error between indoor unit and centralized controller EC19 LED flickering Samsung Electronics...
  • Page 33 - Indoor unit pipe thermistor defect Is the indoor unit pipe thermistor installed at CN8? Install the indoor unit pipe thermistor at CN8 Is the voltage across thermistor 4.9V and higher Replace the indoor unit or 0.5V lower? Replace the thermistor Samsung Electronics...
  • Page 34 Is the outdoor unit thermistor installed at CN41? Install the outdoor unit thermistor at CN41. Is the voltage across the thermistor 4.9V and Replace the outdoor unit PCB higher or 0.5V and lower? Replace the thermistor “*” stands for the indoor unit address. Samsung Electronics...
  • Page 35 Is available float SW2 ON? SW3 ON? Replace pump? indoor unit Install float SW SW2 ON? Replace PCB SET SW2 OFF SET SW2 OFF SET SW3 OFF SET SW3 OFF POWER RESET “*” stands for the indoor unit address. Samsung Electronics...
  • Page 36 The Micom of outdoor unit is operating normally, Is the LED of PCB flickering with 16Hz? check and replace the communication circuit of outdoor unit and indoor unit. Replace the PCB “*” stands for the indoor unit address. Samsung Electronics...
  • Page 37 Is the jump wire inserted into CN20 of indoor unit PCB? Is the address of PCB digital switch of indoor unit to "0"? Set address to "0" Replace the indoor unit PCB Replace the wired remote controller “0” stands for the indoor unit address. 4-10 Samsung Electronics...
  • Page 38 Is indoor pipe thermistor installed at CN41? Connect correctly and check. Is the voltage across the thermistor 4.9V and higher Replace the outdoor PCB or 0.5V and lower? Replace the thermistor “*” stands for the indoor unit address. Samsung Electronics 4-11...
  • Page 39 Wire shorted? LED direct/reverse direction check? Check no.1 and no.2 pin of CN9:DC +5V? Check pin no.1 of CN9 while pressing Replace the wireless receiving board SW91 : DC 0V? Replace after check of indoor unit main PCB 4-12 Samsung Electronics...
  • Page 40 R1, R2, unit PCB R3 of indoor unit terminal boards? Does the error code display? Connect correctly the R1, R2, R3 Error correction and recheck Check the main PCB of indoor unit and replace it. Samsung Electronics 4-13...
  • Page 41 Check IC06 and micom, are the pin 14 and 15 of indoor replace unit PCB IC06 low? Is the voltage across the indoor unit fan Replace PCB AC220 ~ 240V? Check the indoor unit fan motor and replace 4-14 Samsung Electronics...
  • Page 42 Are the pins 11 and 12 of IC07 of outdoor Check and replace unit PCB low when each wind control mode IC07 micom is operation? Is the voltage across the outdoor unit Replace PCB fan motor AC220~240V? Check outdoor unit fan motor and replace Samsung Electronics 4-15...
  • Page 43 Is the output of NO. 10 of IC05 of outdoor Check and replace IC05 unit low then the compressor is on? Is the voltage AC220V across the terminal Replace the magnet of outdoor unit when the compressor is on? replay Replace the compressor 4-16 Samsung Electronics...
  • Page 44 Are the voltage of pin no. 1 and 6 of indoor unit PCB DC 12V? Is the output of pin no. 2, 3, 4, and 5 of CN 12 and 13 of indoor unit PCB spherical? Replace up and down swing motor Replace indoor unit Samsung Electronics 4-17...
  • Page 45 Is “HIGH” the No.11 pin output of IC06? micom Is DC12V the relay both voltage of RY72? Repace the RY72 Is AC220V~AC240V of the No.1, No3 pin both voltage Replace the indoor of CN5. PCB. Check the drain pump and replace. 4-18 Samsung Electronics...
  • Page 46 Put on and then reset the power ERROR CODE = “09” Normal ERROR DISPLAY = FLICKERING Is the level of micon pin no.55 Replace indoor unit PCB “HIGH” Are no.2 and 3 of option switch of indoor unit on? Samsung Electronics 4-19...
  • Page 47 Is IC06 pin no. 10 “LOW”? Check and replace IC06 Is the voltage across RY77 normal? Check and replace RY77 Is the voltage of CN6 no.1 and 3 of indoor unit Replace indoor unit PCB AC220V~AC240V? Check and replace ventilator 4-20 Samsung Electronics...
  • Page 48 No trouble on F101, F102, F701? Replace fuse DC12V output? DC5V output? Check and replace IC02 Check and replace power No trouble on power transformer transformer AC output? Check and replace IC101 No trouble on the power system and finish the test Samsung Electronics 4-21...
  • Page 49 Replace fuse DC12V output? DC5V output? Check and replace IC02 Check and replace power No check on power transformer transformer AC? Check and replace IC01 No trouble on the outdoor unit power system and finish the test 4-22 Samsung Electronics...
  • Page 50 Is the LED1 on after centralized controller on and Replace the PCB of relay equipment off after centralized controller off? Is the LED2 of relay equipment PCB flickering with Replace the relay equipment PCB the consistent interval? Replace the PCB of centralized controller Samsung Electronics 4-23...
  • Page 51 MEMO 4-24 Samsung Electronics...

  • Page 52: Disassembly And Reassembly

    @ Check internal connection of the control box. # Separate the wire connection part of the control box.(indoor motor line, indoor capacitor line/temperature sensor line) $ Disassemble 14 screws on the side. And then separate the cabinet from unit. Samsung Electronics...
  • Page 53 @ 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 support was removed, the pan and motor shall be separated from the panel. Samsung Electronics...
  • Page 54 @ It is possible to clean the surface of heat exchanger and drain board. # After cleaning heat exchangers and drain board, check whether the drain exhaust are clogged. Cleaning a filter ! Remove bracket for fixing filter(6 screws disassembly). bracket Samsung Electronics...
  • Page 55 Disassembly and Reassembly Part name Procedures Picture Cleaning a filter @ Clean the filter with removing downward. # After cleaning the filter, insert and fasten it with bracket for fixing. Samsung Electronics...
  • Page 56 Disassembly and Reassembly Outdoor Unit Part name Procedures Picture Outdoor ! Outdoor unit of a package airconditioner @ Separate a front tightening part. Control box # Separate the tightening part from side. ! The connection status of control box wiring Samsung Electronics...
  • Page 57 * When assembling the parts, check whether each parts and electrical connector fixed firmly. ! Do above process 1. Fan motor & @ Remove nut flanges(Turn screw leftward, Propeller fan but turn right if you want to remove) # Disassemble propeller fans. Samsung Electronics...
  • Page 58 MEMO Samsung Electronics...
  • Page 59 6. Exploded Views and Part LIst 6-1 Indoor Unit 13-1 13-3 13-9 13-2 13-4 13-10 13-7 13-8 13-6 13-5 10-1 10-4 10-5 10-3 10-2 Samsung Electronics...

  • Page 60: Exploded Views And Parts List

    Specification DB97-00217B WIRED REMOTE CONTROLLER KR-H50110 DB97-00218A WIRELESS REMOTE CONTROLLER KR-H40100 DB97-00222A RECEIVER & DISPLAY UNIT KRE-H2000 DB97-00221C WIRE KIT (WIRELESS) KWE-A110 DB97-00219A CENTRALIZED CONTROLLER KR-1160110 DB97-00220C TRANSMITTER KT-A00 DB97-00658B FILTER KIT KF-H0B0 DB97-00557B DRAIN PUMP KIT KDP-H07550 Samsung Electronics...
  • Page 61 6-2 Outdoor Unit Samsung Electronics...
  • Page 62 DH44ZAX DB96-30353A ASS’Y COND UP PART ASS’Y DB96-00559A ASS’Y COND LOW PART ASS’Y DB32-00021C THERMISTOR COND ASS’Y, DH44ZAX DB90-00194A ASSY-PLATE-TOP CH44ZAX, – DB63-30110C SCREEN-GUARD P.E.H 100%, T2.5, –, – DB95-30013F ASS’Y HEATER COMP PD-DH3200-S4 ASS’Y PCB PART DH44ZAX Samsung Electronics...
  • Page 63 MEMO Samsung Electronics...

  • Page 64: Schematic Diagrams

    This air conditioner is tested under 14mmAq external static pressure. Note: If you increase the fan speed, you can use the air conditioner under the external static pressure of 20mmAq maximally. 3. Re-install the cover plate and join the removed screw. Samsung Electronics...

  • Page 65: Refrigerant Cycle Diagram

    7-2 Refrigerant Cycle Diagram Indoor Unit Outdoor Unit *Allowable pipe length : Max. 50m *Allowable drop distance : Max. 25m Samsung Electronics...
  • Page 66 7-3 Wiring Diagram 7-3-1 Indoor Unit DUCT TYPE AIRCONDITIONER Samsung Electronics...
  • Page 67 7-3-2 Outdoor Unit DUCT TYPE AIRCONDITIONER Samsung Electronics...
  • Page 68 7-4 PCB Diagrams 7-4-1 Indoor Unit (PD-DH3200-08) Samsung Electronics...
  • Page 69 CONNECTOR HEADER YW396-03AV-YEL CONNECTOR HEADER YW396-05AV-WHT CONNECTOR HEADER YW396-03AV-BLK Q601 TR-SMALL A708,NPN Q201 TR-SMALL KSC945,NPN Q301,Q701,Q302,Q602,Q603 TR-DIGITAL KSR1002 Q202 TR-DIGITAL KSR2002 LED1 LED-LAMP LED2 LED-LAMP GREEN C702,C703 C-FILM DISK,4.7NF C602 C-CERAMIC AXIAL,4.7NF(472) C101,C103,C105,C209,C210,C501,C302,C603 C-CERAMIC AXIAL,100NF(104) C205-C208,C402-C404,C502,C204,C405 C202,C203 C-CERAMIC AXIAL,10NF(103) Samsung Electronics...
  • Page 70 RELAY-MINIATURE JQ1A-12V F701 FUSE F5A 250V HOLDER HOLDER FH-51H 7.5A F101 FUSE F2A250V HOLDER HOLDER FH-51M 7.5A F102 FUSE F0.5A 250 HOLDER HOLDER FH-51M 7.5A FT71 NOISE FILTER HP1-P16 VA71 VARISTOR 1NR14D561 RY73, 74, 75, 76 RELAY JWIaFSN(10A) Samsung Electronics...
  • Page 71 Parts list 7-4-2 Outdoor Unit (PD-DH3200-S4) Samsung Electronics...
  • Page 72 CN73 CONNECTOR HEADER YW396-05AV-WHT CN71 CONNECTOR HEADER YW396-03AV-BLK CN74 CONNECTOR HEADER YW396-03AV-BLU CN41 CONNECTOR HEADER SMW250-04-WHT CN11 CONNECTOR HEADER SMW250-03-RED CN72 CONNECTOR HEADER YDW236-01-WHT GT1,GT2 GT PIN TB1,TB2 TERMINAL 1P,TAB SWITCH TACT DISPLAY 7-SEG 2-DIGIT DS71 DISCHARGER MP-332MA Samsung Electronics...
  • Page 73 4.444 19.480 4.594 20.290 4.749 21.150 4.912 22.050 5.080 22.990 5.256 23.990 5.439 25.030 5.630 26.130 5.828 27.280 6.033 28.470 6.246 29.720 6.468 31.040 6.699 32.430 6.941 33.890 7.192 35.430 7.455 37.050 7.729 38.760 8.015 40.560 8.313 7-10 Samsung Electronics...
  • Page 74 7-6 Circuit Diagrams 7-6-1 Wired Remote Controller Samsung Electronics 7-11...
  • Page 75 7-6-2 Centralized Controller 7-12 Samsung Electronics...
  • Page 76 7-6-3 Indoor Unit Samsung Electronics 7-13...
  • Page 77 7-6-4 Outdoor Unit 7-14 Samsung Electronics...
  • Page 78 Itself Solution Integrated technology supporting electronic library http://itself.sec.samsung.co.kr Copyright © 2001 By Samsung Electronics Co., Ltd. All rights reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, or converted to any electronic or machine readable from without prior written permission of Samsung Electronics Co., Ltd.
  • Page 79 ELECTRONICS © Samsung Electronics Co., Ltd. Apr. 2001 Printed in Korea. Code No. DB81-00216A(1)

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