Page 2 - -1 Refrigerant Refill Procedure; • Piping length and the height
1 1. Installation 1-1 Refrigerant Refill Procedure INDOORA-UNIT INDOORB-UNIT • Piping length and the height Additional refrigerant charge(R22,g) • When length of the pipe is over 5u by the unit, you should charge the refrigerant Formulas A-UNIT : 20gx(La-5)/m B-UNIT : 20gx(Lb-5)/m (La:the length of ...
Page 3 - -2 “Pump down” Procedure
2 1-2 “Pump down” Procedure Relocation of the air conditioner 1. Carry out the pump down procedure (refer to the details of ‘pump down’). 2. Remove the power cord.3. Disconnect the assembly cable from the indoor and outdoor units. 4. Remove the flare nut connecting the indoor unit and the pipe.At th...
Page 4 - Disassembly and Reassembly
3 2. Disassembly and Reassembly 2-1 Indoor Unit Stop operation of the air conditioner and remove the power cable before repairing the unit. No Parts Procedure Remark Front Grille 1 1) Stop the air conditioner operation and block the main power. 2) Separate tape of front panel upper. 3) Contract the ...
Page 7 - related to the malfunction of the airconditioner.; -1 Items to be checked first; Operation of air conditioner; Explanation
6 1) The input voltage should be rating voltage ±10% range. The airconditioner may not operate properly if the voltage is out of this range. 2) Is the link cable linking the indoor unit and the outdoor unit linked properly? The indoor unit and the outdoor unit shall be linked by 5 cables. Check the ...
Page 8 - Self Diagnosis
7 Display Standard Timer Nature Power (GREEN) X (GREEN) X X (GREEN) (GREEN) X X X X X X X X X X X X X Restore from power failure (input initial power) Indoor unit Room sensor Error (open or short) Indoor unit heat exchanger temperature sensor Error (open or short) Indoor fan malfunctioning (for spee...
Page 9 - Review all the following elements in the installation:; Check the connection of PCB communication of outdoor unit.; OUTDOOR UNIT
8 3-2 Checking and Testing Operations (Outdoor Unit) To complete the installation, perform the following checks and tests to ensure that the air conditioner is operating correctly. 1. Review all the following elements in the installation: • Installation site strength• Piping connection tightness to ...
Page 10 - If the lamp is not flickering, check as follows:; Check the status of each unit indoor room select switch.
9 4. Check the test operation status by pressing the PCB switch 4. S/W-A and S/W-B of outdoor unit. 4. • Check the operation status by pushing the switch one at time. 4. • Perform the test operation only for the unit selected last. 4. • Check the pipe pressure and the other operation status during t...
Page 12 - -3 Fault Diagnosis by Symptom; ) Troubleshooting procedure
11 3-3 Fault Diagnosis by Symptom 3-3-1 No Power (completely dead)-Initial diagnosis 1) Checklist : (1) Is input voltage normal? (2) Is AC power linked correctly?(3) Is output voltage of DC regulator IC KA7805 (IC02) normal? (4.5VDC-5.5VDC) 2) Troubleshooting procedure Replace PCB display Is DC volt...
Page 13 - -3-2 When the power voltage is not available; ) Inspection sequence
12 3-3-2 When the power voltage is not available 1) Inspection items (1) Is the power voltage is normal? (The rating voltage ±10% range)(2) Is the power cord is correctly connected and is the contact good? (3) Does the sound “ting” come out with the operation lamp (green) flickering when the power i...
Page 15 - -3-4 When the fan of indoor unit does not operate; the trouble condition of speed detecting part?
14 3-3-4 When the fan of indoor unit does not operate 1) Inspection items (1) Is the power voltage normal? (2) Is the connector of indoor fan with the good contact? (CN73)(3) Is the soldering status of running condenser (CR71) with the good contact?(4) Is connector of the Hall IC with the good conta...
Page 16 - -3-5 When the outdoor unit fan does not operate
15 3-3-5 When the outdoor unit fan does not operate 1) Inspection items (1) The outdoor unit fan motor operates only when the operating conditions are satisfied and is selected by the RY74(LOW) and PY75(HI) to rotate. (2) Is the power voltage normal? (3) Is the contact of outdoor unit fan motor (CN ...
Page 18 - procedure
17 3-3-7 If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis) 1) Troubleshooting procedure Remove power cord and plug in again approx. 5 Seconds Is operation lamp blinking? Check as in the procedure “NO Power parts”. Refer to page 11. Normal Replace battery. LCD is faulty. Replace ...
Page 20 - -3-9 When the compressor does not operate; items
19 3-3-9 When the compressor does not operate 1) Inspection items (1) Is the COMP A under the operating conditions? (cooling operating of A, B(C) room)(2) Is the power voltage normal? (the rating voltage ±10% range)(3) Are the connector connection of COMP A(RY 72, 73) and B(RY 71) good?(4) The COMP ...
Page 21 - -4 Set up the Model option; Step 1 : Preparing the remocon to main PCB option set; Remove the battery from the remocon.; Make sure the remocon display shown as; Step 2 : Second stage preparation of the remocon option set.; The Method for Setting up the model option with remocon
20 3-4 Set up the Model option • It is necessary to set up option code after replacing the main-PCB as a service parts. Make sure that you can set up the option of code the remote controller after you replace the mainPBA otherwise, the unit won’t be working properly and all LED lamps on display will...
Page 22 - Step 3 : Reconfirming option set after completion; • Error Mode
21 ! If the first number is , it is correct otherwise press until appear. @ When pressing the button ~ appear on the display, select one of them. # When pressing the button ~ appear on the display, select one of them. $ When pressing the button ~ appear on the display, select one of them. % When pre...
Page 24 - M E M O
23 M E M O DB98_05645A(1)_1 5/30/02 7:05 PM Page 23
Page 25 - Exploded Views and Parts List
24 4. Exploded Views and Parts List 4-1 Indoor Unit 17 16 14 22 9 7 21 3 4 5 6 19 20 8 12 25 13-4 23 13-3 13-2 13 13-1 11 10 2 1 15 18-1 18-5 18-4 18 18-6 18-6-1 18-2 18-3 24 DB98-05645A(1)-2 5/30/02 7:06 PM Page 24
Page 26 - Q’TY; Parts List; CODE NO
25 Q’TY ■ Parts List CODE NO No. Description REMARK AD18B1C09 AD26B1C13 1 2 3 4 5 6 7 8 9 10 11 12 13 13-1 13-2 13-3 13-3-1 13-3-2 13-4 14 15 16 17 18 18-1 18-2 18-3 18-4 18-5 18-6 18-6-1 19 20 21 22 23 24 25 DB64-00085A DB63-00064B DB95-00287K DB63-00067A DB92-00031L DB67-00051A DB67-00032A DB63-00...
Page 31 - Description
30 4-3 ASS’Y CONTROL IN (DB93-01223A) ■ Parts List No 1 2 3 4 5 6 7 8 9 10 11 Description HOLDER CONTROL ASS’Y MAIN PCB TERMINAL BLOCK ASSY ASSY DISPLAY PCB CONNECTOR WIRE PCB U/D HOLDER CLAMP IN SEAL CONTROL SIDE SEAL H/CONTROL FRONT SCREW MACHINE LABEL CORE Specification DB61-00160B DB93-00319B DB...
Page 32 - Refrigerating Cycle Block Diagram; Refrigerating cycle temperature and pressure; INDOOR UNIT
31 5. Refrigerating Cycle Block Diagram Refrigerating cycle temperature and pressure STD Pressure Piping Temp.(°F) Temp. Condition (°F) Operating Condition (psi) T1 T2 Indoor Outdoor 3-WAY V/V DB WB DB WB Standard 57-71 50-54 50-54 80 67 95 75 Cooling Max over load - 61-64 61-64 80 67 115 75 Low tem...
Page 35 - Schematic Diagrams
7. Schematic Diagrams 7-1 Indoor Unit ■ AS07A5(6)MA / AS09A5(6)MA 34 35
Page 37 - ELECTRONICS
ELECTRONICS Printed in Korea. DB98_05645A(1)-co 5/30/02 7:50 PM Page 2