DB98_17072A(1)_CO 04/5/4 1:59 PM Page 2 CASSETTE TYPE AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT CH052EAM CH070EAM UH052EAMT UH070EAMT SERVICE AIR CONDITIONER Manual CONTENTS 1. Product Specifications 2. Disassembly and Reassembly 3. Refrigerating Cycle Diagram 4. Set Up the Model Option 5. Control Specification & Troubleshooting 6. Exploded Views and Parts List 7. Block Diagram 8. Wiring Diagram 9.
DB98_17072A(1)_1 04/5/4 1:54 PM Page 1 1. Product Specifications 1-1 Table INDOOR UNIT CH052EAM CH070EAM OUTDOOR UNIT UH052EAMT UH070EAMT BTU/h 18,700 23,800 W 5,500 7,000 BTU/h 20,400 26,100 MODEL Cooling Capacity Heating W 6,000 7,700 ø/V/Hz 1/220 ~ 240/50 1/220 ~ 240/50 Cooling W 1,700 2,400 Heating W 1,800 2,400 Cooling A 7.5 10.6 Heating A 7.9 10.6 H.H r.p.m - - Power Supply Power Input Running Current Hi r.p.m 340 430 Mid r.p.m 300 330 Low r.p.
DB98_17072A(1)_1 04/5/4 1:54 PM Page 2 Table(cont.) MODEL INDOOR UNIT CH052EAM CH070EAM OUTDOOR UNIT UH052EAMT UH070EAMT Type R410A R410A Charge g 1,550 1,650 Adding Charge g/m 30 35 Elec.Expansion Valve Elec.Expansion Valve Refrigerant Control Outdoor Unit Type Slit Slit Row x Stages x Fin pitch 2 x 28 x 1.5 2 x 28 x 1.5 Heat Exchanger H mm 648 648 W mm 880 880 D mm 310 310 Net / Gross kg 67 / 72 69 / 74 Liquid mm(inch) 6.35(1/4") 6.
DB98_17072A(1)_1 04/5/4 1:57 PM Page 3 1-2 Dimensions 1-2-1 Indoor Unit (Unit : mm) No. Model Name CH052EAM Samsung Electronics CH070EAM 1 Liquid pipe connection ø6.35(1/4") ø6.35(1/4") 2 Gas pipe connection ø12.7(1/2") ø15.
DB98_17072A(1)_1 04/5/4 1:49 PM Page 4 Product Specifications 1-2-2 Outdoor Unit 880 4 31 0 648 (Unit : mm) Samsung Electronics
DB98_17072A(1)_1 04/5/4 1:50 PM Page 5 1-3 Pressure Graph ■ CH052EAM / UH052EAMT 8.78 8.78 8.78 8.78 8.78 8.78 8.78 8.78 8.78 8.78 8.78 8.78 33.13 22.97 22.97 33.13 22.97 21.4 21.11 22.81 22.97 21.11 22.97 22.97 21.11 21.1 21.4 22.81 21.11 21.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 6 Product Specifications ■ CH070EAM / UH070EAMT 6 Samsung Electronics
DB98_17072A(1)_1 04/5/4 1:50 PM Page 7 2. Disassembly and Reassembly Stop operation of the air conditioner and remove the power cord before repairing the unit. 2-1 Indoor Unit No Parts Procedure 1 Front Grille - Dust-Collecting Filter 1) Push the tap on the Front Grille to open it. Remark 2) Disassembly of Front Grille. (1) Open the Front Grille at about 45˚ degrees and draw it forward. (2) Disassemble the safety clip. 3) Filter Disassembly (1) Draw the dust-collecting Filter forward.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 8 Disassembly and Reassembly No Parts Procedure Remark 4) Loosen the 4 bolts slowly. 5) Loosen the bolt of the front net to disassemble the safety net. 6) Loosen the 4 bolts in the mark to uncover the Component Electric Box cover. 7) Disassemble the 3 cables between the indoor unit and the Panel.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 9 Disassembly and Reassembly No Parts Procedure Remark 8) Hold on the two hooks on both sides of the indoor unit and disassemble the Front Panel. 9) Take away the disassembled Panel out of the main body. 2 Electronic Part - Indoor & Outdoor Connecting Cable 3 Fan & Motor 1) Disconnect all the indoor and outdoor cables connected to the Terminal Board. 1) Disassemble the Fan Motor wire connector, thermistor wire connector, and Drain Pump wire connector.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 10 Disassembly and Reassembly No Parts Procedure Remark 3) Disassemble the ground wire. 4) Disassemble the Float Switch wire connected to the Terminal Port.(F1, F2) 5) Loosen the 8 bolts in the mark . 6) Loosen a bolt in the arrow direction and inside. 7) Disassemble the Drain Cushion from the main body.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 11 Disassembly and Reassembly No Parts Procedure Remark 8) Loosen the nut. 9) Lift the fan to disassemble from the Motor. Take out the washer Take out the washer Take outthe thewasher washer Take Takeout Take out the washer Take out the washer 10) Disassemble the Motor connector wire. 11) Disassemble the ground wire.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 12 Disassembly and Reassembly No Parts Procedure Remark 12) Loosen 3 nuts to disassemble the Motor. 4 Pump 1) Loosen the 4 bolts of the Drain Pump. 2) Disassemble the Hose from the Drain Pump. 3) Disassemble the Pump from the main body Bracket.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 13 Disassembly and Reassembly No Parts 5 Heat Exchanger Procedure Remark 1) Disassemble the cover pipe beside the main body. 2) Loosen the 2 bolts fixing the Heat Exchanger to the indoor unit Base. 3) Disassemble the 4 fixing Brackets of the Heat Exchanger to disassemble it from the main body.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 14 Disassembly and Reassembly No Parts 6 Front Panel - Cover Front 14 Procedure Remark ❈ Do "1", above. Push 3 Cover Front fixing screws inside the Front Panel and snap fixing part to detach the Cover Front.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 15 Disassembly and Reassembly No Parts Procedure 7 Front Panel - Stepping Motor ❈ Do "1", above. 1) Loosen each one of fixing screw at the corner part, (1) cushion side-A and cushion side-B inside the Front Panel, and then lift it up. Remark 2) Remove (1) the screw of Housing Motor L/R fixed at the corner part of Front Panel inside and detach (2) Blade-H. 3) (1) Detach the Stepping Motor from the Housing Motor L/R and (2) detach the Motor wire connected.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 16 2-2 Outdoor Unit No Parts 1 Common Work Procedure Remark 1) Loosen the fixing screws and detach the Cover Control. 2) Detach the connection wire from the Terminal Block. 3) Loosen the fixing screws and detach the Upper Cabinet. 4) Loosen the fixing screws and detach the Front Cabinet. 5) Loosen 2 screws and pull up the Control Box. 6) Detach the terminal cover and detach the Comp lead wire.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 17 Disassembly and Reassembly No Parts Procedure Remark 7) Loosen the fixing screws and detach the Cabinet Side. 2 Fan & Motor 1) Loosen the fixing bolt and detach the Fan. 2) Loosen 4 fixing bolts to detach the Motor.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 18 Disassembly and Reassembly No Parts 3 Heat Exchanger & Compressor 18 Procedure Remark 1) Release the refrigerant at first. 2) Disassemble the inlet and outlet pipe by welding. 3) Loosen the fixing screws of the Heat Exchanger. 4) Detach the Heat Exchanger. 5) Loosen four bolts of the Compressor. 6) Detach the Compressor.
DB98_17072A(1)_1 04/5/4 1:50 PM Page 19 3. Refrigerating Cycle Diagram Indoor Unit Outdoor Unit ❋ Allowable pipe length : Max. 30m ❋ Allowable drop distance : Max.
DB98_17072A(1)_1 04/5/4 1:51 PM Page 20 4. Set Up the Model Option 4-1 Setting Option Setup Method ex) Option No. : Step 1 : Enter the Option Setup mode. 1st Take out the batteries of remote control. 2nd Press the temp. button simultaneously and insert the battery again. 3rd Make sure the remote control display shown as . Step 2 : Enter the Option Setup mode and select your option according to the following procedure. 1 The default value is Otherwise, push the . button to .
DB98_17072A(1)_1 04/5/4 1:52 PM Page 21 Set Up the Model Option 7 Press button, then the default value is . 8 Push the button to set the display panel to . Every time you push the button, the display panel reads ... repeatedly. 7 8 9 9 Push the button to set the display panel to . Every time you push the button, the display panel reads ... repeatedly. 10 11 10 Push the 12 button to set the display panel to . Every time you push the button, the display panel reads ... repeatedly.
DB98_17072A(1)_1 04/5/4 1:52 PM Page 22 Set Up the Model Option ■ OPTION ITEMS REMOTE CONTROL SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 MODEL 22 CH052EAM 0 4 5 0 0 0 1 A 0 0 0 0 CH070EAM 0 4 5 0 0 0 1 c 0 0 0 0 Samsung Electronics
DB98_17072A(1)_1 04/5/4 1:52 PM Page 23 5. Control Specification & Troubleshooting 5-1 Operation Specification 5-1-1 Tracking process marked on display part 4-1-1 • Left numeral is an address that outdoor unit transfers communication. - - - ... - Left Right (Calling indoor unit) 4-1-1 • Right numeral marks address that is answered. 4-1-1 • During the tracking, left calls indoor unit through - and checks. At this time ...
DB98_17072A(1)_1 04/5/4 1:52 PM Page 24 Control Specification & Troubleshooting 5-1-3 Setting Up Option Switches ■ KEY ■ Display DIS 1 K1 K2 K3 DIS 2 K4 RESET DISPLAY MODE SEG1 CHECK MODE SEG2 ITEM No.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 25 5-2 Troubleshooting When error occurs in air conditioner, error code is displayed on indoor unit display lamp and outdoor unit. 5-2-1 Indoor unit LED error diagnosis ■ Error detection and reoperation ■ ● If error occurs during the operation, badness is indicated by LED flickering and all operation is stopped except LED. ■ ● When reoperating by remote control and switch determine the error mode after normal operation.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 26 Control Specification & Troubleshooting 5-2-2 Outdoor Unit If an error occurs during the operation, it is displayed on the outdoor unit PCB. Display Explanation High temp. of Discharge (Protection control) Remark Error about protection control of outdoor unit High temp. of outdoor heat exchanger (Protection control) COMP DOWN to protect being frozen Error of momentary power failure (disappears when the unit is Off/On) Error of OUT TEMP.
DB98_19269A(1)_1 9/6/04 3:53 PM Page 21 5-2 Troubleshooting 5-2-1 Wired remote controller display error occurring ■ If an error occurs, is displayed on the wired remote controller. ■ If you would like to see an error code, press the Test button.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 28 5-3 Sequence for trouble diagnosis 5-3-1 Outdoor temp. sensor(OPEN/SHORT) Outdoor unit display Er → t1 (Outdoor temp. sensor OPEN/SHORT error) (Operation) Indoor unit display How to determine Reason of error (Timer) (Airflow) (Filter) Disconnection and short of outdoor temp.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 29 Control Specification & Troubleshooting 5-3-2 Outdoor heat exchanger temp. sensor error(OPEN/SHORT) Outdoor unit display Er → t2 (Outdoor heat exchanger temp. sensor error(OPEN/SHORT) (Operation) Indoor unit display How to determine Reason of error (Timer) (Airflow) (Filter) Disconnection and short of outdoor heat exchanger temp. sensor Disconnection or leak of Applied sensor Does the out heat exchanger temp.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 30 Control Specification & Troubleshooting 5-3-3 Outdoor discharge temp. sensor error(OPEN/SHORT) Outdoor unit display Er → t3 (Outdoor discharge temp. sensor OPEN/SHORT error) (Operation) Indoor unit display How to determine Reason of error (Timer) (Airflow) (Filter) Disconnection and short of outdoor discharger temp. sensor Disconnection or leak of Applied sensor Does the outdoor discharge temp.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 31 Control Specification & Troubleshooting 5-3-4 Communication error during the operation Outdoor unit display Er → E1 (Communication error during the operation) (Operation) Indoor unit display How to determine Reason of error (Timer) (Airflow) (Filter) Disconnection and short of communication lines Communication error between the indoor unit and outdoor unit.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 32 Control Specification & Troubleshooting 5-3-5 Communication error between indoor and outdoor after initial power input.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 33 Control Specification & Troubleshooting 5-3-6 Indoor float switching error Outdoor unit display Er → E3 (Indoor float switching error ) (Operation) Indoor unit display How to determine (Timer) (Airflow) (Filter) The status continues over 1 minute that indoor unit float switch is opened.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 34 6. Exploded Views and Parts List 6-1 Indoor Unit 1 2 5 6 3 4 9 7 8 10 11 12 15 14 19 13 16 20 17 18 24 25 22 23 21 26 27 You can search for the updated part code number through the ITSELF. URL : http://itself.sec.samsung.co.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 35 Exploded Views and Parts List ■ Parts List No. Code No. Description Q'TY Specification CH052EAM CH070EAM 1 DB63-00620A COVER-CONTROL AFPCH145EA0,HIPS(V0),-,-,-,-,-,-,DPM 5.0HP 4-WAY 1 1 2 DB63-00621A COVER-CONTROL SUB AFPCH145EA0,HIPS(HB),-,-,-,-,-,-,DPM 5.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 36 6-2 Outdoor Unit 20 1 2 21 22 15 23 16 5 4 24 8 13 25 9-6 9-1 9-3 10 3 11 9-5 9 9-2 9-4 14 12 17 19 26 18 6 7 36 Samsung Electronics
DB98_17072A(1)_1 04/5/4 1:53 PM Page 37 Exploded Views and Parts List ■ Parts List No. Code No. Description Q'TY Specification UH052EAMT UH070EAMT 1 DB90-01363A ASS'Y-COVER TOP ASS'Y 1 1 2 DB90-01293A ASS'Y CABI-FRONT ASS'Y,LOGO 1 1 3 DB67-00140A FAN-PROPELLER AS+GF20%,OD460,3BLADE 1 1 4 DB61-01167A BRACKET-MOTOR SGCC-M,T1.6 1 1 5 DB67-00261A PARTITION SGCC-M,T0.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 38 7. Block Diagram Up and down STEP MOTOR Room temp. SENSOR pipe sensor pipe outlet sensor MAIN PCB Indoor left and right FAN RPM feedback control Function display part remote control receiving part Option saving control MICOM Communication(485comm) Indoor unit ADDRESS setting part 485 comm control RMC ADDRESS setting part Blackout restoring function Room temp.
DB98_19268A(1)_1 9/6/04 3:54 PM Page 41 8. Wiring Diagram 8-1 Indoor Unit Code No : DB98-20413A This Document can not be used without Samsung's authorization.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 40 8-2 Outdoor Unit ■ UH052EAMT Code No : DB98-14410A This Document can not be used without Samsung's authorization.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 41 Wiring Diagram ■ UH070EAMT Code No : DB98-14410B This Document can not be used without Samsung's authorization.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 42 9. Schematic Diagram 9-1 Indoor Unit This Document can not be used without Samsung's authorization.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 43 9-2 Outdoor Unit ■ UH052EAMT This Document can not be used without Samsung's authorization.
DB98_17072A(1)_1 04/5/4 1:53 PM Page 44 Schematic Diagram ■ UH070EAMT This Document can not be used without Samsung's authorization.
DB98_14413A(1)_1** 10/9/03 5:41 PM Page 52 UPDATE LOG SHEET Application date 2005. Feb. 14 Page 35, 39 Part# DB93-00843K DB65-00029X Note(Cause & Solution) S/Bulletin# Applied New PCB Old:DB93-00843H -> New:DB93-00843K Applied New Terminal Block Old:DB65-00029U -> New:DB65-00029X Use this page to keep any special servicing information. (Service Bulletin, etc.) If only parts number changes, Just change parts number directly on parts list.
DB98_17072A(1)_CO 04/5/4 1:59 PM Page 1 ELECTRONICS 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. May. 2004. Printed in Korea. Code No.
