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Heat Controller RAD-243A manual

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Table of contents for the manual

  • Page 1

    5RRP$LU&RQGLWLRQHU +($ 7&2175 2//(5,1& AD-183A CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL . AD- 24 3A SERVICE MANUAL[...]

  • Page 2

    2 Room Air Conditioner Air Conditioner Ser vice Manual T ABLE OF CONTENTS Safety Precautions ..........................................................................................................................................3 Dimensions ..........................................................................................................[...]

  • Page 3

    Ser vice Manual 3 Saf ety Precautions Safety Precautions T o pre v ent injur y to the user or other people and proper ty damage, the f ollowing instructions must be f ollowed. ■ Incorrect operation due to ignoring instruction will cause har m or damage. The seriousness is classified by the f ollowing indications . ■ Meanings of symbols used in [...]

  • Page 4

    4 Room Air Conditioner Saf ety Precautions Do not modify or extend the po wer cord. • There is risk or fire or electric shock. Do not install, remove, or re-install the unit b y y ourself. • There is risk of fire, electric shock, e xplosion, or injur y . Be cautious when unpacking and installing the product. • Sharp edges could cause injur y [...]

  • Page 5

    Dimensions Dimensions 770 660 8 2 4 W mm(inch) 660(26") 660(26") H mm(inch) 428(16 27 / 32 ") 428(16 27 / 32 ") D mm(inch) 770(30 5 / 16 ") 770(30 5 / 16 ") Model Dimension 18K Btu 24K Btu Outside Dimensions This symbol alerts you to the risk of electric shoc k. This symbol alerts you to hazar ds that could cause harm [...]

  • Page 6

    6 Room Air Conditioner Specfications Pr oduct Specifications POWER SUPPLY COOLING CAPACITY INPUT E.E.R REFRIGERANT (R-22) CHARGE(g) OPERATING INDOOR(°C) TEMPERATURE OUTDOOR(°C) EVAPORATOR CONDENSER FAN, INDOOR FAN, OUTDOOR FAN SPEEDS, FAN/COOLING FAN MOTOR OPERATION CONTROL ROOM TEMP. CONTROL AIR DIRECTION CONTROL CONSTRUCTION PROTECTOR COMPRESSO[...]

  • Page 7

    7 Room Air Conditioner Specfications Pr oduct Specifications POWER SUPPLY COOLING CAPACITY INPUT E.E.R REFRIGERANT (R-22) CHARGE(g) OPERATING INDOOR(°C) TEMPERATURE OUTDOOR(°C) EVAPORATOR CONDENSER FAN, INDOOR FAN, OUTDOOR FAN SPEEDS, FAN/COOLING FAN MOTOR OPERATION CONTROL ROOM TEMP. CONTROL AIR DIRECTION CONTROL CONSTRUCTION PROTECTOR COMPRESSO[...]

  • Page 8

    Se r vice Ma n ual 8 Installation Installation Select the Best Location Installation Chec k How to Secure the Drain Pipe 1.To prevent vibration and noise, make sure the unit is installed securely and firmly. 2.Install the unit where the sunlight does not shine directly on the unit. 3.The outside of the cabinet must extend outward for at least 30cm [...]

  • Page 9

    9 Room Air Conditioner Installation Window Requirements Installation Kits Contents All supporting parts should be secured to firm wood, masonry, or metal. 1. This unit is designed for installation in standard dou- ble hung windows with actual opening widths from 26" to 41". The top and bottom window sashes must open suffi- ciently to allo[...]

  • Page 10

    Se r vice Ma n ual 10 Installation Suggested T ool Requirements PREP ARA TION OF CHASSIS 1. Remove the screws which fasten the cabinet at both sides and at the back. 2. Slide the unit out from the cabinet by gripping the base pan handle and pulling forward while bracing the cabinet. 3. Cut the window sash seal to the proper length. Peel off the bac[...]

  • Page 11

    11 Room Air Conditioner Installation Cabinet Installation 1. Open the window. Mark a line on the center of the window stool between the side window stop mold- ings. Loosely attach the sill bracket to the support bracket using the carriage bolt and the lock nut. 2. Attach the sill bracket to the window sill using the screws (Type B). Carefully place[...]

  • Page 12

    Se r vice Ma n ual 12 Installation 5. Pull each Frame curtain fully to each window sash track, and pull the bottom window sash down behind the Top retainer bar until it meets. 6. Attach each Frame curtain the window sash by using screws (Type C.) (See Fig. 11) 7. Slide the unit into the cabinet.(See Fig. 12) CA UTION: For security purpose, rein- st[...]

  • Page 13

    13 Room Air Conditioner • Designed for COOLING ONLY. • Powerful and whispering cooling. • Slide-in and slide-out chassis for the simple instal- lation and service. • Side air-intake, side cooled-air discharge. 1. Cooling Only Model • VENTILATION The ventilation lever must be in the CLOSE position in order to maintain the best cooling cond[...]

  • Page 14

    Se r vice Ma n ual 14 Operation 2. Cooling Only Model with Remote Contr ol and T ouch T ype POWER BUTTON Operation starts, when this button is pressed and stops when you press the button again. OPERATION MODE SELECTION BUTTON Select Cooling, or Fan or Dehumid mode with button. (Dehumid mode is not to all models.) ON/OFF TIMER BUTTON Set the time of[...]

  • Page 15

    15 Room Air Conditioner Disassembly Disassembl y Mechanical P arts — Before the following disassembly, CONTROL BOX set to OFF and disconnect the power cord. 1. Front Grille 1. Open the lnlet grille upward . 2. Remove the screw that fastens the front grille. 3. Pull the front grille from the right side. 4. Remove the front grille. 5. Re-install th[...]

  • Page 16

    Se r vice Ma n ual 16 Disassembly Air Handling P ar ts 4. Cover (at the top) 1. Remove the front grille. (Refer to section 17) 2. Remove the cabinet. (Refer to section 18) 3. Remove 11 screws which fasten the brace and covers. 4. Remove the covers and the brace. (See Fig. 20) 5. Re-install the components by referring to the removal procedure, above[...]

  • Page 17

    17 Room Air Conditioner 6. Shroud 1. Remove the fan. (Refer to section 21) 2. Remove the screw that fastens the shroud. 3. Remove the shroud. (See Figure 24) 4. Re-install the component by referring to the removal procedure, above. 7. Motor 1. Remove the cabinet. (Refer to section 18) 2. Remove the cover control and disconnect a wire housing in con[...]

  • Page 18

    Se r vice Ma n ual 18 Disassembly 9. Capacitor 1. Remove the control box. (Refer to section 19) 2. Remove the knobs and the screw that fasten control panel from control box. 3. Remove the screw that located in the front. 4. Open the bottom side of control box. 5. Remove the screw and the clamp that fastens the capacitor. 6. Disconnect all the leads[...]

  • Page 19

    19 Room Air Conditioner Disassembly CA UTION: Dischar g e the refrigerant system using a Freon TM Recovery System. If there is no valve to attac h the recovery system, install one (such as a W A TCO A-1) before venting the Freon TM . Leave the v alve in place after servicing the system. 13. Condenser 1. Remove the cabinet. (Refer to section 18) 2. [...]

  • Page 20

    Se r vice Ma n ual 20 Disassembly — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to Discharge the refrigerant system using a Freon TM recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the Freon TM . Leave the valve in place after serv[...]

  • Page 21

    21 Room Air Conditioner Disassembly Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable of making a leak-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. A COMPOUND GAUGE EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR CAPILLARY TUBE CONDENSER (HIGH PRESSURE SI[...]

  • Page 22

    Se r vice Ma n ual 22 Schematic Diagram Schematic Dia gram Electr onic Control De vice WP Vcc Digit3 (Scan3) Digit4 (Scan4) Digit1 (Scan1) Digit2 (Scan2) Digit0 (Scan0) MAIN POWER COMP HERM FAN C CAPACITOR MOTOR FAN 120 1/2W ZNR01J TVR14271 250V/T3.15A FUSE G4A-1A-E-LG RY-COMP 1000 D02D~D05D 1N4004 35V D03D D02D POWER TRANS 1 2 7 4 D05D + D04D C01D[...]

  • Page 23

    23 Room Air Conditioner Schematic Diagram Wiring Diagram WH(BL) POWER INPUT BK(BR) (Ribbed) (Plain) GN/YL (GN) GN/YL(GN) THERMIST OR BK BK BL RD BL RD CN-TH1 YL YL OR(BR) OR(BR) OR(BR) SYNC M OTOR R Y -LO R Y -HI CN-WORK CN-SYNC CN-DISP DISPLA Y P .W .B ASM R Y -SYNC 250V/T2A (115V/T2A) TRANS FORMER ZNR R Y -COMP MAIN P .W .B ASM BK BK BR BR RD BL [...]

  • Page 24

    Se r vice Ma n ual 24 Schematic Diagram Components Location Main P .W .B Assembly Display P .W .B Assembly[...]

  • Page 25

    25 Room Air Conditioner T roub leshooting Guide T r oub leshooting Guide Piping System Figure 34 is a brief description of the important components and their function in what is called the refrigeration system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle. MOTOR COMPRESSOR OIL (LIQUID[...]

  • Page 26

    Se r vice Ma n ual 26 T roub leshooting Guide T r oubleshooting Guide In general, possible trouble is classified in two kinds. The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit runs but poor coolin[...]

  • Page 27

    27 Room Air Conditioner T roub leshooting Guide Fails to Start Check circuit breaker and fuse. Gas leakage of feeler bulb of thermostat Check of control switch. Fan only fails to start. Improper wiring. Defect of fan motor capacitor . Irregular motor resistance ( ). Irregular motor insulation ( ). Replacement of fan motor . Regular but fails to sta[...]

  • Page 28

    Se r vice Ma n ual 28 T roub leshooting Guide Electrical P ar ts T roub leshooting Guide Possible Trouble 1 The unit does not operate. Is the Trans output power AC 220V? Is the Trans output power about AC 14V? Is shorted the Trans. output? Is output Voltage of IC01D DC 12V? Is output Voltage of IC02D DC 5V? Is the voltage No.20 of Micom DC 5V? Exch[...]

  • Page 29

    29 Room Air Conditioner T roub leshooting Guide Is setting Temp. set lower than Room Temp.-0.5 ° C? Is the voltage No.10 of IC01M 0V? • Exchange IC01M. • Select the setting Temp. to lower Number. • Wait 3 Minutes. Is the Unit for 3 minutes delay? • Exchange MAIN PCB Ass'y. Is the voltage N0.7 of IC01M DC 5V? • Check the RY-COMP. •[...]

  • Page 30

    Se r vice Ma n ual 30 T roub leshooting Guide • Exchange IC01M. • Exchange IC01M. Is the voltage NO.1 or 4 of IC01M DC 5V? Is the voltage NO.13 or 16 of IC01M 0V? • Check the RY-Hi or RY-Lo. • Check the wiring diagram. NO NO YES YES • Exchange Micom. • Exchange IC01M. • Check the PCB pattern. Is the voltage NO.6 of IC01M DC 5V? Is the[...]

  • Page 31

    31 Room Air Conditioner T roub leshooting Guide NO NO NO NO YES YES YES Is the IC01G all right? Is the connection of CN-DISP all right? • Exchange the display PCB Ass'y. • Exchange IC01G. • Exchange Q01G-Q04G. • Connect connector to CN-DISP exactly. Does the Q01G~Q04G operate normally on main PCB Ass'y? Is the voltage of Battery a[...]

  • Page 32

    Se r vice Ma n ual 32 T roub leshooting Guide COMPLAINT CAUSE REMEDY Check voltage at outlet. Correct if necessary. Check voltage to rotary switch. If none, check power supply cord. Replace cord if circuit is open. Check switch continuity. Refer to wiring diagram for terminal identification. Replace switch if defective. Connect wire. Refer to wirin[...]

  • Page 33

    33 Room Air Conditioner T roub leshooting Guide COMPLAINT CAUSE REMEDY Check the position of knob If not at the coldest set- ting, advance the knob to this setting and restart unit. Check continuity of the thermostat. Replace ther- mostat if circuit is open. Check the TEMP control. If not at the lowest num- ber, set TEMP control to this setting and[...]

  • Page 34

    Se r vice Ma n ual 34 T roub leshooting Guide COMPLAINT CAUSE REMEDY Test capacitor. Check the terminals. If loose, repair or replace. Check the system for a restriction. If restricted, clean of replace. Close if open. Determine if the unit is properly sized for the area to be cooled. Check the set screw or clamp. If loose or missing, correct. If t[...]

  • Page 35

    35 Room Air Conditioner Exploded View Exploded Vie w 159830 135 314 147581-1 147581-2 135312 552111 554031 148000 7497 50 349600 346811 130410 354210 147582 349001 359012 349480 W48602 W48602 55901 1 267110 149980 550140 554160 352113 35211A 552113 567480 146812 W0CZZ 249950 1355 1 0 130910 268711-1 264100 268711-2 137215 238310 325115-2 325115-1 W[...]

  • Page 36

    RAD-183A DESCRIPTION 130410 304 1A30001H BASEA SSEMBLY, SINGLE R 130910 309 1AR6056P CABINETA SSY,SINGLE R 135312 AEB30969401 Grille,ASSY,Front(SINGLE) R 135314 353 0AR1604A Grille,ASSY,INLET R 135510 355 1A30001A COVER,CONTROL(INDOO R) R 146812 2H011 02J MotorAssembly ,SYNC R 147581-1 47 58AR7264A LOUVER,HORIZONTA L R 147581-2 47 58AR7278A LOUVER,[...]

  • Page 37

    RAD-243A DESCRIPTION 1 3 041 0 304 1 A 30001 F B A SE A SSE M B L Y , S I N G L E R 1 3 091 0 30 9 1 A R 605 6 P C A B I N E T A SSY , S I N G L E R 1 3 531 2 A E B 30969 4 0 1 G r ill e A SSY ,F r on t(S I N G L E ) R 1 3 531 4 3 5 30 A R 16 0 4 A G r ill e A SSY ,I N L E T R 1 3 551 0 355 0 A R 7046 D C O VE R , C O N T R O L ( I ND O O R ) R 1 4[...]

  • Page 38

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