Johnson Controls FREE MATCH EK Series Service Manual
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Johnson Controls FREE MATCH EK Series Service Manual

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EK
YSCC18FSAADG
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
repair the product or products dealt with in this service information by anyone else could result in serious injury or death

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Summary of Contents for Johnson Controls FREE MATCH EK Series

  • Page 1 YSCC18FSAADG This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.

  • Page 2: Table Of Contents

    Table of Contents YSCC18FSAADG 1. Features..................... 1 2. Introduction ....................2 3. Specifications .................... 7 4. Printed circuit board connector wiring diagram ........9 5. Functions and control ................10 5.1 Main functions and control specification ..........10 5.2 Value of thermistor ................... 13 6.

  • Page 3: Features

    YSCC18FSAADG Table of Contents Domestic Air Conditioner...

  • Page 4: Introduction

    YSCC18FSAADG Table of Contents 2. Introduction 2.1 Safety Cautions Be sure to read the following safety cautions before conducting repair work. The caution items are classified into “Warning” and “Caution”. The “Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “Caution” items can also lead to serious accidents under some conditions if they are not followed.
  • Page 5 YSCC18FSAADG Introduction Warning Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock. Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock.
  • Page 6 Introduction YSCC18FSAADG Warning Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work. Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire. Be sure to use the specified cable to connect between the indoor and outdoor units.
  • Page 7 YSCC18FSAADG Introduction 2.1.3 Inspection after Repair Warning Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet all the way. If the plug has dust or loose connection, it can cause an electrical shock or fire. If the power cable and lead wires have scratches or deteriorated, be sure to replace them.
  • Page 8 Introduction YSCC18FSAADG 2.1.4 Using Icons Icons are used to attract the attention of the reader to specific information. The meaning of each icon is described in the table below: 2.1.5 Using Icons List Icon Type of Information Description A “note” provides information that is not indispensable, but may Note: Note nevertheless be valuable to the reader, such as tips and tricks.

  • Page 9: Specifications

    YSCC18FSAADG Specifications HSU18VCK Model Cooling 5.27/5.12 Btu/h Capacity Rated 18000/17500 kcl/h 4532/4408 POWER SUPP LY NOMINAL Phase DISTRIBUTION Frequency SYSTEM VO LTAGE 230/208V Voltage Moisture Removal 7.2/7.6 Running Current(Rated) Power Consumption Rated 1600/1550 EER Rated Liquid 6.35 Piping Connections 9.52 (external diameter) Drain Heat Insulation...
  • Page 10 Specifications YSCC18FSAADG Outdoor Unit HSU18VCK Casing Color lvory white Type Hermetic motor compressor 50A452P Model Motor Output 1805 Compressor Oil Type NMOC Ze-Gles RB68EP or equivalent 0.56 Oil Charge Model R410A Refrigerant Charge m³/min Air Flow Rate (H/L) 1765 Axial fan Type Motor Output 7.2/7.6...

  • Page 11: Printed Circuit Board Connector Wiring Diagram

    Connector Wiring Diagram YSCC18FSAADG 4. Printed Circuit Board Connector Wiring Diagram 4.1 Indoor unit Connectors Indoor PCB 1) CH1 connector for power line L. 2) CN26 connector for DC fan motor. 3) CN11 connector for step motor. 4) CN32’ connector for receiver display. 5) CN48 connector for Emergency switch.

  • Page 12: Functions And Control

    YSCC18FSAADG Functions and Control 5 Functions and control 5.1 main functions and control specifications Including brief introduction to air conditioners of series models and electric control function. 5.1.1 Automatic running (1) Single cold automatic run mode: After entering into this mode, the main control “MCU” determines the corresponding work pattern according to the indoor temperature so as to maintain the preset temperature (the preset temperature is 78°...
  • Page 13 YSCC18FSAADG Functions and Control (1)High temperature expiration prevention:When the temp.of coil pipe is above 161°F,compressor and outlet air stop running 10 seconds later, and inlet air runs as the temp. sensor is off. When comp- ressor stands by for 3 minute and the temp. of coil pipe is below 149°F, the unit can be started again. Protection of frost is available (disable in test run or heating mode): In order to prevent the indoor heat exchanger from freezing (in refrigation or dehumidifying mode), the compressor will be shut off when the temperature of the indoor coil pipe is or below 30°F and the...
  • Page 14 Functions and Control YSCC18FSAADG hours and then close. 5.1.6.2 In heating mode, the temp. setting decrease 3 F one hour after start up. After another hour the temp. setting decrease by more 3 F. After 3 hours the temp. setting rise by 1 F and then run continuously for another 3 hours and then close 5.1.6.3 If the wind speed is set to high before going to bed, the wind speed become medium after start up;...

  • Page 15: Value Of Thermistor

    YSCC18FSAADG Functions and Control function of power on is optional. (In auto, heating, cooling, or defrosting status, press the “ ” button to enter additional options when cycle dispay to will flash and then press quickly press and then press rapidly 10 times within 6 seconds, and the auto recovery function of power on can be set on/off.
  • Page 16 YSCC18FSAADG Functions and Control 109.8953 101.5523 93.7278 -1.45 1.36 103.7422 96.0274 88.7774 -1.43 1.34 97.9708 90.8365 84.1185 -1.40 1.32 92.5551 85.9574 79.7322 -1.38 1.30 87.4712 81.3697 75.6011 -1.36 1.29 82.6970 77.0544 71.7088 -1.34 1.27 78.2118 72.9937 68.0402 -1.31 1.25 73.9966 69.1712 64.5813 -1.29...
  • Page 17 YSCC18FSAADG Functions and Control 12.9244 12.2537 11.6035 -1.27 1.24 12.3960 11.7375 11.1004 -1.31 1.27 11.8921 11.2459 10.6218 -1.35 1.31 11.4113 10.7775 10.1665 -1.39 1.34 10.9526 10.3311 9.7330 -1.43 1.38 10.5147 9.9056 9.3204 -1.48 1.42 10.0967 9.4999 8.9275 -1.52 1.45 9.6976 9.1130 8.5532 -1.56...
  • Page 18 YSCC18FSAADG Functions and Control 2.6050 2.3505 2.1182 -3.22 2.94 2.5203 2.2717 2.0451 -3.28 2.99 2.4388 2.1960 1.9749 -3.33 3.03 2.3602 2.1231 1.9075 -3.38 3.07 2.2846 2.0530 1.8426 -3.43 3.12 2.2118 1.9856 1.7803 -3.48 3.16 2.1416 1.9207 1.7204 -3.54 3.20 2.0740 1.8582 1.6628 -3.59...
  • Page 19 YSCC18FSAADG Functions and Control Pipe Sensor R25 =10K ±3% B25 /50 =3700K±3% Temp.(( )) Max.(K ) Normal(K Tolerance( ) 165.2170 147.9497 132.3678 -1.94 1.75 155.5754 139.5600 125.0806 -1.93 1.74 146.5609 131.7022 118.2434 -1.91 1.73 138.1285 124.3392 111.8256 -1.89 1.71 130.2371 117.4366 105.7989 -1.87...
  • Page 20 YSCC18FSAADG Functions and Control 21.9714 20.8659 19.7982 -1.15 1.12 20.9688 19.9409 18.9463 -1.13 1.09 20.0176 19.0621 18.1358 -1.11 1.07 19.1149 18.2270 17.3646 -1.08 1.05 18.2580 17.4331 16.6305 -1.06 1.03 17.4442 16.6782 15.9315 -1.03 1.01 16.6711 15.9601 15.2657 -1.01 0.99 15.9366 15.2770 14.6315 -0.98...
  • Page 21 YSCC18FSAADG Functions and Control 3.9206 3.6943 3.4780 -1.74 1.66 3.7878 3.5654 3.3531 -1.78 1.70 3.6601 3.4416 3.2332 -1.82 1.74 3.5374 3.3227 3.1183 -1.87 1.78 3.4195 3.2085 3.0079 -1.91 1.82 3.3060 3.0989 2.9021 -1.95 1.85 3.1969 2.9935 2.8005 -2.00 1.89 3.0919 2.8922 2.7029 -2.04...
  • Page 22 Functions and Control YSCC18FSAADG 1.0314 0.9326 0.8424 -3.80 3.46 1.0030 0.9061 0.8179 -3.85 3.51 0.9756 0.8806 0.7941 -3.90 3.55 0.9490 0.8558 0.7711 -3.96 3.60 0.9232 0.8319 0.7489 -4.01 3.64 0.8983 0.8088 0.7275 -4.07 3.69 0.8741 0.7863 0.7067 -4.12 3.74 0.8507 0.7646 0.6867 -4.18...

  • Page 23: System Configuration

    YSCC18FSAADG System Configuration 6. System Configuration 6.1 System Configuration After the installation and test operation of the room air conditioner have been completed, it should be operated and handled as described below. Every user would like to know the correct method of operation of the room air conditioner, to check if it is capable of cooling (or heating) well, and to know a clever method of using it.In order to meet this expectation of the users, giving sufficient explanations taking enough time can be said to reduce about 80% of the requests for servicing.

  • Page 24: Instruction

    YSCC18FSAADG System Configuration 6.2 Instructions Parts and Functions POWER/SOFT button is not available for 07k、09k、12k. Domestic Air Conditioner...
  • Page 25 YSCC18FSAADG System Configuration Operations Emergency operation and test operation Base Operation Emergency Operation: Use this operation only when the remote controller is defective or lost. When the emergency operation switch is Remote controller pressed,the" Pi "sound is heard once, which means the start of this operation.
  • Page 26 YSCC18FSAADG System Configuration Operation Sleep Operation In AUTO mode The unit operaters in corresponding sleep mode Before going to bed,you can simply press the SLEEP adapted to the automatically selected operation button and unit will operate in SLEEP mode and bring mode.
  • Page 27 System Configuration YSCC18FSAADG Operation Timer On/Off On-Off Operation Healthy airflow Operation 1.After unit starts, select your desired operation mode. 1.Press to starting Setting the comfort work conditions. 2.Press TIMER button to change TIMER mode. Every time the button is pressed, display changes as follows: 2.The setting of healthy airflow function Remote controller: Press...
  • Page 28 YSCC18FSAADG System Configuration Maintenance For Smart Use of The Air Conditioner Remote Controller Indoor Body Setting of proper room Do not block the air inlet temperature or outlet Proper wipe the air conditioner by using a temperature soft and dry cloth.For serious stains, use a neutral detergent diluted with Do not usewater,wipe the controller water.Wring the water out of the...
  • Page 29 System Configuration YSCC18FSAADG Cautions WARNING This system should be installed by a qualified HVAC professional. Do not attempt to install the air conditioner by yourself because improper works may cause fire, water leakage, personal injury or cleath. WARNING Check proper When abnormality such as burnt-small found, Use an exclusive immediately stop the operation button and...
  • Page 30 YSCC18FSAADG System Configuration Trouble shooting Cautions Before asking for service, check the following Do not obstruct or cover the ventilation grille of the air first. conditoner.Do not put fingers or any other things into the inlet/outlet and swing louver. Phenomenon Cause or check points Do not allow children to play with the air conditioner .In no...

  • Page 31: Service Diagnosis

    YSCC18FSAADG Codes and Description 7. Codes and Description 7.1. Problem Symptoms and Measures Symptom Check Item Details of Measure Check to make sure that the rated voltage is Check the power supply. supplied. None of the Check to make sure that the indoor PCB is units operates Check the indoor PCB broken...
  • Page 32 Codes and Description YSCC18FSAADG whether terminal CN1 Pull out the terminals on the indoor mainboard and indoor PCB contact well? reinsert them Pull the sensor out of the mainboard Measure the value of resistance Between its two jumpers Measure the temperature at the room temperature sensing head.
  • Page 33 Code and Description YSCC18FSAADG Turn off power supply and rotate fan by hand Does fan rotate Replace fan motor smoothly? Turn power ON and operate fan Turn off power supply and disconnect fan Does it rotate? motor connector, then turn power ON Check output of fan motor connector Replace indoor Is motor power voltage...

  • Page 34: Capacity Diagrams And Curves Diagrams

    Capacity YSCC18FSAADG 8.1 Cooling Capacity-temperature Curves cooling value-temperature table YSCC18FSAADG indoor temp cooling temp.(humidity)40% 67/50 16740 16380 15840 15300 14760 14040 12960 11340 67/57 18000 17640 17280 16740 16020 15300 14220 12960 67/62 19440 19080 18540 17820 17280 16740 15660 14400 72/57 17820 17640 17280 16740 16020 15300 14220 12960 72/62...
  • Page 35 Capacity YSCC18FSAADG 8.2 Cooling Power Consumption Value-temperature Curves YSCC18FSAADG Performance Curves Power Consumption Value-temperature Curves indoor temp cooling temp.(humidity)40% DB/WB 67/50 1120 1168 1216 1280 1328 1376 1472 1536 67/57 1152 1216 1280 1344 1376 1440 1520 1680 67/62 1216 1264 1328 1408 1472 1480 1536 1760 72/57...

  • Page 36: Installations

    YSCC18FSAADG Installations 9. Installation Preparation Selection of Installation Place Necessary Tools for Installation Indoor Unit - Select a plocation that is Torque wrench Hammer (17mm,22mm,26mm) Nipper Robust not causing vibration, where the body can be supported s Hacksaw Pipe cutter Not affected by heat or steam generated in the vicinity, where inlet and outlet of the Hole core drill Flaring tool...
  • Page 37 YSCC18FSAADG Installations 1. Insert the drain hose into the dent of heat insulation materials of indoor unit. Accessory parts 2. Insert the indoor/outdoor electric cable from backside of indoor unit, and pull it out on the front side, then connect them. Drain hose (1) Remote controller (1) 3.
  • Page 38 Installations YSCC18FSAADG Ensure that on dirt or debris enters the pipe. The standard pipe length is 7m(27 9/16) . If it is over 7m(27 9/16), the function of the unit will be affected. If the pipe has to be lengthened, the refrigerant should be charged, according to 50 g /m(0.045oz/inch).
  • Page 39 YSCC18FSAADG Installations No gas leakage? On Drainage In case of gas leakage, tighten parts of pipe connection. If leakage stops, Please install the drain hose so as to be downward slope without fail. then proceed step 6. If leak continues, remove the refrigerant used for the Please don’t do the drainage as shown below.

  • Page 40: Wiring Diagrams

    YSCC18FSAADG Wiring Diagrams 10. Wiring Diagrams Indoor Up&down step motor DomesticAirConditioner...
  • Page 41 YSCC18FSAADG Wiring Diagrams 1 0 .2 O u td oor NOTE: 1.The parts are optional. 2.Some types may not have the dotted lines. marked with DomesticAirConditioner...
  • Page 42 YSCC18FSAADG Wiring Diagrams 10. 3 CIRCUIT DIAGRAM MODE P4_5/INT0 595-RCK RESET P1_3/KI3/AN11 595-SER P3_0/TRAO 595-SCK P3_1/TRBO P0_5/AN2/CLK1 P1_0/KI0/AN8 P0_4/AN3 P3_3/SSI DIG1 P6_3/TXD2 DIG2 P6_0/TREO B4B-XH-A P8_4/TRFO11 P8_6 RLS4148 P2_2/TRDIOC0 4.7uF-16V P2_0/TRDIOA0/TRDCLK P0_6/AN1/DA0 4.7uF/16V R135 P0_7/AN0/DA1 P3_5/SCL/SSCK P4_7/XOUT P3_7/SSO R136 4.7K- 1% P3_6/(INT1) 0.001UF OSC1...
  • Page 43 Dimensional drawings YSCC18FSAADG 10.4 Outdoor Unit Domestic Air Conditioner...
  • Page 44 Center of Gravity YSCC18FSAADG 1046 434.7 330.7 159.4 Domestic Air Conditioner...
  • Page 45 YSCC18FSAADG Appendix Domestic Air Conditioner...
  • Page 46 Appendix YSCC18FSAADG YSCC18FSAADG Domestic Air Conditioner...

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