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Samsung UH070EZMC, Service Manual

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INDOOR UNIT

DH070EZM

OUTDOOR UNIT

UH070EZMC

SERVICE

Manual

CONTENTS

AIR CONDITIONER

1. Product Specifications

2. Installation

3. Disassembly and Reassembly

4. Refrigerating Cycle Diagram

5. Troubleshooting

6. Exploded Views and Parts List

7. PCB Diagram

8. Wiring Diagram

9. Schematic Diagram

DUCT TYPE AIR CONDITIONER

DB98_15108A(1)_CO  10/15/03 3:04 PM  Page 3

Summary of Contents for UH070EZMC

Page 1: ...nual CONTENTS AIR CONDITIONER 1 Product Specifications 2 Installation 3 Disassembly and Reassembly 4 Refrigerating Cycle Diagram 5 Troubleshooting 6 Exploded Views and Parts List 7 PCB Diagram 8 Wiring Diagram 9 Schematic Diagram DUCT TYPE AIR CONDITIONER ...

Page 2: ...x 24 x 1 5 900mm 0 55 EEV R 22 2 1 1ø 220 240V 50Hz Sound Pressure Level MODEL DH070EZM UH070EZMC INDOOR UNIT OUTDOOR UNIT Capacity Power Supply Power Input Running Current Fan Speed Air Circulation Noise Level Sound Pressure Heat Exchanger Fan Dimension Weight Power Input Running Current Fan Speed Fan Compressor Heat Exchanger Refrigerant Cooling Heating Cooling Heating Cooling Heating H H Hi Mid...

Page 3: ...H070EZMC INDOOR UNIT OUTDOOR UNIT Dimension Weight Indoor Unit Outdoor Unit Pipe O D Size Between H W D Net Gross Cool DB WB Heat DB WB Cool DB WB Heat DB WB Liquid Gas Height Pipe Length Connection Method Outdoor Unit Condition Piping Notice This model is tested under the external static pressure of 4mmAq Notice Air Flow rate Fan Step Control Low Mid High Ultra High ...

Page 4: ...3 Samsung Electronics Unit mm 1 2 Dimensions 1 2 1 Indoor Unit ...

Page 5: ...Product Specifications Samsung Electronics 4 1 2 2 Outdoor Unit Unit mm 310 638 660 880 Front View Rear View ...

Page 6: ... optional accessories such as the wired remote controller centralized controller etc see an appropriate installation manual 6 If an optional accessory is not installed you do not have to set the RMC address However adjust K1 and K2 switches of the SW03 DIP switch to ON position in this case 7 Set the MAIN address by adjusting the rotary switch SW02 from 0 to F Each indoor unit connected to the sam...

Page 7: ... Adjusting filter cleaning cycle You can adjust the cycle for filter sign indicator Hot water heater You must adjust the K7 when you install the hot water heater K6 1000 hours 2000 hours Switch No Switch ON Switch OFF K7 No use of hot water heater Use of hot water heater Switch No Switch ON Switch OFF SW04 K5 K6 K7 K8 SW04 K5 K6 K7 K8 SW04 K5 K6 K7 K8 K5 2 C compensation 5 C compensation Switch No...

Page 8: ...opriate position Option Switch 0 or 1 2 3 4 5 6 7 8 One Two Three Four Five Six Seven Eight 9 A B C D E F Nine Ten Eleven Twelve Thirteen Fourteen Fifteen Switch No Number of indoor unit s Switch No Number of indoor unit s RESET CHECK MODE DISPLAY MODE K1 K2 K3 K4 DIS 1 SEG 1 SEG 2 SEG 3 SEG 4 DIS 2 KEY Display 2 3 Setting Up Option Switches Rotary Switch Key Display ...

Page 9: ...ll open Temperature of evaporator Indoor temperature Stopping view mode display communication data 110 C 38 C 34 C 120STEP 12 x 10 2 C 12 C 22 C KEY Number of press Item Example Display Meaning K2 K3 K4 Function Number of press times 1 2 3 4 Use the K1 only for heat pump models K1 Displayed on SEG 3 4 Adding refrigerant at heating mode Test operation at heating mode End K2 Displayed on SEG 3 4 Add...

Page 10: ...2 screws of indication part and then assemble the direction of 2 plate handle places by use of screw as shown in 2 2 Turn the plate handle by hand when removing the Filter pre 3 When pulling the Filter pre handle the Filter pre can be assembled Be sure to remove the cushion on the marked part after initial installation It cause the damage of noise 1 After disassembling 9 places indicating screws s...

Page 11: ...rocedure Remark 2 Disassemble 6 indicating screws 3 Separate the sensor holder from the Ass y fan case 4 Separate from Ass y control in the capacitor connection wire between the motor fan in and housing connector 5 Separate the Ass y blower and duct from the set ...

Page 12: ... After disassembling 1 indicating screw separate the cover control 2 Separate the motor fan in and sensor connector connected to PCB 3 Disassemble 2 indicating screws arrow mark 4 Hold the Ass y control In by hand to lift up a little and then release the status of hanging on the hanging slot ...

Page 13: ...to separate Ass y drain pan 2 screws each at left and right side Work is possible when disassembling the ass y drain pan 1 Disassemble 8 indicating screws 4 each at left and right side 2 Disassemble 6 indicating screws 3 Disassemble 5 indicating screws It is possible at the status of No 3 Ass y control In disassembly at the time ...

Page 14: ...assembly No Parts Procedure Remark 4 After disassembling 4 indicating screws 5 Pull the cabinet side RH BH by hand to disassemble 6 Separate 4 indicating screws 2 each at left and right side 7 Separate it from the set if the ass y evap pull up ...

Page 15: ...connecting canvas to the discharge side 1 Disassemble 4 indicating screws 2 each at left and right side 2 Disassemble 12 indicating screws 6 each at upper and lower side After connecting canvas to the disassembled Ass y holder outlet 2 attach the Ass y holder outlet to the set in the reverse order ...

Page 16: ...r cable 2 Detach the top cover 3 Detach the control box cover 4 Unplug the ass y cable 5 Detach the cabi side 6 Detach the cabi front When you assemble the parts check if the each parts and component electric box are fixed firmly 1 Detach the nut flange Turn to the right to remove as it is a left turned screw 2 Disassemble the propeller fan ...

Page 17: ...able pipe length Max 50m Allowable drop distance Max 30m Gas Side INDOOR UNIT OUTDOOR UNIT Heat Exchanger Evaporator Heat Exchanger Condensor Muffler Compressor High pressure switch Accumulator Cooling Heating Gas leak check point 3 Way Valve Filter Filter EEV 3 Way Valve ...

Page 18: ... Error of outdoor temperature sensor Error of COND sensor Error of DISCHARGE sensor OPEN SHORT Error of heat exchanger sensor in indoor unit OPEN SHORT Error of temperature sensor in indoor unit OPEN SHORT Power reset If you turn off the air conditioner when the LED is flickering the LED is also turned off On Flickering Off If you re operate the air conditioner it operates normally at first then d...

Page 19: ...verse phase If you turn off the air conditioner when the LED is flickering the LED is also turned off On Flickering Off If you re operate the air conditioner it operates normally at first then detect an error again Error of float switch Error of setting option switches for optional accessories EEPROM error EEPROM option error Operating Indicators Abnormal conditions Blue Red Concealed Type Standar...

Page 20: ...cation error after completion of tracking Mismatching of the indoor unit numbers set with those communicated after completion of tracking Error of float switch in indoor unit Error of setting option switches for optional accessories OPEN SHORT error of room sensor in indoor unit OPEN SHORT error of eva in sensor in indoor unit EEPROM option error Error of fan starting Open error of electronic expa...

Page 21: ... 10 11 19 17 9 4 14 15 7 8 6 16 3 12 19 2 19 6 19 3 19 1 5 1 5 5 5 4 5 2 5 3 19 4 19 5 6 Exploded Views and Parts List 6 1 Indoor Unit You can search for the updated part code number through the ITSELF URL http itself sec samsung co kr ...

Page 22: ...SS Y DRAIN PAN CASE BOTTOM ASS Y BLOWER DUCT PANEL DUCT MOTOR BRACKET MOUNT MOTOR ASS Y CASE FAN BLOWER MOTOR FAN IN ASS Y CABI LF ASS Y CABI INLET LF PLATE HANGER LF ASS Y EVAP ASS Y CABI INLET RH ASS Y CABI SIDE RH PLATE HANGER RH CABINET SIDE RH B ASS Y HOLDER OUTLET ASS Y COVER BOTTOM PLATE HANDLE FILTER PRE COVER CONTROL ASS Y CONTROL IN ASS Y CASE CONTROL ASS Y PCB PARTS TERMINAL BOARD 6P CA...

Page 23: ...Samsung Electronics 22 6 2 Outdoor Unit 5 4 6 7 8 11 10 15 13 14 16 18 17 12 1 12 3 9 3 1 2 12 2 ...

Page 24: ...1 8 DB93 02484A ASS Y CONTROL OUT HP UH070EZM 1 9 DB94 50039C ASS Y PARTITION ASM 3500A 1 10 DB95 00201A ASS Y COMP APH2416 SHV33C6 G HITACHI 1 11 DB60 30028A NUT WASHER HEX 2C M8 ZPC 3 12 1 DB96 02901A ASS Y ACCUMULATOR ASS Y 1 12 2 DB96 02902A ASS Y 4 WAY VALVE ASS Y 1 12 3 DB96 02903A ASS Y EXPANSION VALVE ASS Y 1 13 DB98 02909A ASS Y COND PART APH2488 CHINA 1 14 DB90 10616G ASS Y CABI UP APE24...

Page 25: ...Samsung Electronics 24 7 PCB Diagram TOP 7 1 Indoor Unit Code No DB93 00849N ...

Page 26: ...PCB Diagram 25 Samsung Electronics BOTTOM ...

Page 27: ...5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012Y 5V 104Z5 C CHIP CS2012X 7R 102K5 C CHIP CS2012Y 5V 104Z5 C FILM 2A 472J C CHIP CS2012 5V...

Page 28: ... 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M DIODE 4148M FUSE 250V 5A HOLDER FUSE FB58 20 FUSE 250V 1A FILTER NOISE HP1 P10 HEAT SINK A6063 L25 5 W15 WHT IC VOLT REGULATOR KA7812A SCREW TAPPING PH M3 L8 FE FZY IC VOLT REGULATOR KA7805...

Page 29: ...2 1kΩ 5 R CHIP R2012 1kΩ 5 R CHIP R2012 1kΩ 5 R CHIP R2012 10kΩ 5 R CHIP R2012 10kΩ 5 R CHIP R2012 10kΩ 5 R CHIP R2012 10kΩ 5 R CHIP R2012 6 8kΩ 1 R CHIP R2012 6 8kΩ 1 R CHIP R2012 6 8kΩ 1 R CHIP R2012 330Ω 5 R CHIP R2012 330Ω 5 R CHIP R2012 330Ω 5 R CHIP R2012 24kΩ 1 R CHIP R2012 330Ω 5 R CHIP R2012 10kΩ 5 R CHIP R2012 330Ω 5 R CHIP R2012 10kΩ 5 R CHIP R2012 47kΩ 5 R CHIP R2012 47kΩ 5 R CHIP R201...

Page 30: ...012 10kΩ 5 R CHIP R2012 10kΩ 5 R CHIP R2012 10kΩ 5 R CHIP R2012 10kΩ 5 RELAY JQ1a 12V RELAY JQ1a 12V RELAY JQ1a 12V RELAY CS11 12SH RELAY CS11 12SH RELAY CS11 12SH RELAY CS11 12SH DIGITAL SWITCH PT65 103 DIGITAL SWITCH PT65 503 DIP SWITCH BSD 104 DIP SWITCH BSD 104 DIP SWITCH BSD 104 VARISTOR INR14D561K BS RESONATOR 10MHz R605 R607 R608 R609 R610 R813 R814 R815 R816 R901 R902 R903 R911 R912 R913 R...

Page 31: ...Samsung Electronics 30 7 2 Outdoor Unit Code No DB93 01855B TOP ...

Page 32: ...PCB Diagram 31 Samsung Electronics BOTTOM ...

Page 33: ... CHIP 10nF 50V 2012 C CER CHIP 10nF 50V 2012 C CER CHIP 10nF 50V 2012 C CER CHIP 10nF 50V 2012 C CER CHIP 100nF 50V 2012 C CER CHIP 100nF 50V 2012 C CER CHIP 100nF 50V 2012 DIODE TVS SAC5 0 7 6V 500W DIODE TVS SAC5 0 7 6V 500W CONNECTOR HEADER SMW250 03 RED CONNECTOR HEADER YW396 02V BLU CONNECTOR HEADER YW396 02V RED CONNECTOR HEADER SMW250 04 WHT CONNECTOR HEADER SMW250 02 WHT CONNECTOR HEADER B...

Page 34: ...V 200mA LED DISPLAY 7SEG ELD 306GWA LED DISPLAY 7SEG ELD 306GWA POSISTOR DSA 332MA FUSE SR 5 016 H 250V 1 6A FUSE BLOCK FB 58 FUSE CARTRIDGE 51NM 050 H 250V 5A FILTER EMI AC LINE HP1 P10 250V 1A CONNECTOR TERMINAL GT 2 WHT IC POSI FIXED REG KA7812A TO 220 IC POSI FIXED REG KA7805 TO 220 IC VOLTAGE COMP KA7533 TO 92 IC MICOM MB89538AP 101 STM 0305OC IC DARLINGTON DRIVER KID65003AP 16P 300MIL IC DAR...

Page 35: ...CHIP 330 J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 330 J 1 10W 2012 R CHIP 330 J 1 10W 2012 R CHIP 330 J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 10K J 1 10W 2012 R CHIP 1K J 1 10W ...

Page 36: ...S11 12SH 12VDC RELAY MINIATURE CS11 12SH 12VDC RELAY MINIATURE FTR F3AA012E 12Vdc 5A RELAY MINIATURE FTR F3AA012E 12Vdc 5A SWITCH DIGITAL PT65 103 DC24V VARISTOR INR14D561K RS 560V 2500A VARISTOR TVR14471 470V 4500A VARISTOR TVR14471 470V 4500A RESONATOR CERAMIC 10MHZ RJ01 RJ02 RJ03 RY71 RY74 RY75 RY76 RY77 SW1 VA71 VA72 VA73 X501 Specification Description Location No ...

Page 37: ...Samsung Electronics 36 This Document can not be used without Samsung s authorization 8 Wiring Diagram 8 1 Indoor Unit ...

Page 38: ...37 Samsung Electronics This Document can not be used without Samsung s authorization 8 2 Outdoor Unit ...

Page 39: ...Samsung Electronics 38 9 Schematic Diagram 9 1 Indoor Unit This Document can not be used without Samsung s authorization ...

Page 40: ...39 Samsung Electronics 9 2 Outdoor Unit This Document can not be used without Samsung s authorization ...

Page 41: ...MEMO Samsung Electronics 40 ...

Page 42: ...e 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 Oct 2003 Printed in Korea Code No DB98 15108A 1 ...

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