Service and Parts Manual 2 0 11 SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTED TYPE Models Indoor Unit MW09C1H MW12C1H Outdoor Unit MR09C1H MR12C1H Table of Contents Model and product code .................................................................................................. 3 Summary and features ......................................................................................................... 4 1. Safety Precautions ............................................................................................................... 5-7 2. Specifications ........................................................................................................................... 8 2.1 Unit Specifications........................................................................................................... 8-11 2.2 Operation Date ............................................................................................................... 12 2.3Expanded capacity data tables for both cooling and heating ..................................... 13 2.4 Operation n Characteristic Curve ...................................................................................... 14 2.5 Noise criteria curve tables for both models.................................................................... 15 3. Construction Views .............................................................................................................. 16 3.1 Indoor Unit ....................................................................................................................... 16 3.2 Outdoor Unit .................................................................................................................... 16 4. Refrigerant System Diagram ....................................................................................... 17 5. Schematic Diagram .............................................................................................................. 18-21 5.1 Electrical Date ................................................................................................................. 18 5.2 Electrical Wiring ........................................................................................................... 18-19 5.3 Printed Circuit Board ..................................................................................................... 20-21 6. Function and Control ....................................................................................................... 22-35 7. Installation Manual ............................................................................................................ 36-43 8. Troubleshooting ................................................................................................................... 44-72 9.1 Precautions before Performing Inspection or Repair .................................................... 44 9.2 Confirmation ................................................................................................................. 44 9.3 Judgement by Flashing LED of Indoor/Outdoor Unit ........................................................... 44-51 9.4 How to Check simply the main part .................................................................................... 52-62 9. Removal Procedure ....................................................................................................... 73-78 10. Exploded Views and Parts List 2 ............................................................................. 79-85 Model and product code Model and product code Voltage range Complete unit model Indoor unit model Outdoor unit model 115V ~ 60H zM M09CIH MW09CIH MR09CIH 115V ~ 60H zM M12CH MW12CIH MR12CIH 3 Summary and features Summary and features OutdoorUnit MR09CI H MR012CIH Remote control windo w YB1FAF 4 IMPORTANT SAFETY INFORMATION T h e i n f o r m a t i o n c o n t a i n e d i n t h i s m a n u a l i s i nt e n d e d f o r u s e by a q u a l i f i e d s e r v i c e technician who is familiar with the safety procedures required for installation and repair, and who is equipped with the proper tools and test instruments required to ser vice this product. Installation or repairs made by unqualified persons can result in subjecting the unqualified person making such repairs as well as the persons being served by the equipment to hazards resulting in injury or electrical shock which can be serious or even fatal. Safety warnings have been placed throughout this manual to alert you to potential hazards that may be encountered. If you install or perform service on equipment, it is your responsibility to read and obey these warnings to guard against any bodily injury or property damage which may result to you or others. Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read, understand and obey all safety messages. This is a safety Alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol with the word “WARNING” or “CAUTION”. These words mean: WARNING You can be killed or seriously injured if you do not follow instructions. CAUTION You can receive minor or moderate injury if you do not follow instructions. All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what will happen if the instructions are not followed. NOTICE A message to alert you of potential property damage will have the word “NOTICE”. Potential property damage can occur if instructions are not followed. PERSONAL INJURY OR DEATH HAZARDS ELECTRICAL HAZARDS: • Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenance, or service. • Make sure to follow proper lockout/tag out procedures. • Always work in the company of a qualified assistant if possible. • Capacitors, even when disconnected from the electrical power source, retain an electrical charge potential capable of causing electric shock or electrocution. • Handle, discharge, and test capacitors according to safe, established, standards, and approved procedures. • Extreme care, proper judgment, and safety procedures must be exercised if it becomes necessary to test or troubleshoot equipment with the power on to the unit. 5 • Do not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel, and sleeve on the room side of the air conditioning unit while cleaning. • Electrical component malfunction caused by water could result in electric shock or other electrically unsafe conditions when the power is restored and the unit is turned on, even after the exterior is dry. • Never operate the A/C unit with wet hands. • Use air conditioner on a single dedicated circuit within the specified amperage rating. • Use on a properly grounded outlet only. • Do not remove ground prong of plug. • Do not cut or modify the power supply cord. • Do not use extension cords with the unit. • Follow all safety precautions and use proper and adequate protective safety aids such as: gloves, goggles, clothing, adequately insulated tools, and testing equipment etc. • Failure to follow proper safety procedures and/or these warnings can result in serious injury or death. REFRIGERATION SYSTEM REPAIR HAZARDS: • Use approved standard refrigerant recovering procedures and equipment to relieve pressure before opening system for repair. • Do not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor to moderate injury. • Be extremely careful when using an oxy-acetylene torch. Direct contact with the torch’s flame or hot surfaces can cause serious burns. • Make sure to protect personal and surrounding property with fire proof materials. • Have a fire extinguisher at hand while using a torch. • Provide adequate ventilation to vent off toxic fumes, and work with a qualified assistant whenever possible. • Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for leaks, flushing etc. • Make sure to follow all safety precautions and to use proper protective safety aids such as: gloves, safety glasses, clothing etc. • Failure to follow proper safety procedures and/or these warnings can result in serious injury or death. MECHANICAL HAZARDS: 6 • Extreme care, proper judgment and all safety procedures must be followed when testing, troubleshooting, handling, or working around unit with moving and/or rotating parts. • Be careful when, handling and working around exposed edges and corners of the sleeve, chassis, and other unit components especially the sharp fins of the indoor and outdoor coils. • Use proper and adequate protective aids such as: gloves, clothing, safety glasses etc. • Failure to follow proper safety procedures and/or these warnings can result in serious injury or death. PROPERTY DAMAGE HAZARDS FIRE DAMAGE HAZARDS: • Read the Installation/Operation Manual for the air conditioning unit prior to operating. • Use air conditioner on a single dedicated circuit within the specified amperage rating. • Connect to a properly grounded outlet only. • Do not remove ground prong of plug. • Do not cut or modify the power supply cord. • Do not use extension cords with the unit. • Be extremely careful when using acetylene torch and protect surrounding property. • Failure to follow these instructions can result in fire and minor to serious property damage. WATER DAMAGE HAZARDS: • Improper installation, maintenance or servicing of the air conditioner unit can result in water damage to personal items or property. • Insure that the unit has a sufficient pitch to the outside to allow water to drain from the unit. • Do not drill holes in the bottom of the drain pan or the underside of the unit. • Failure to follow these instructions can result in damage to the unit and/or minor to serious property damage. 7 2. 1 Unit Specifications Specifications 09 Kof115 VMo del s Model Function Rated Voltage Frequency (Inverter different Compressor speed) Total Capacity (Inverter different Compressor speed) Power Input (Inverter different Compressor speed) Rated Input Rated Current Air Flow Volume Indoor MW09CI H Outdoor Unit MR09C1H MW09CIH High Standard Low High Standard Low High Standard Low High Standard High Standard Turbo SH Hz Hz Hz W / Btu/h W / Btu/h W / Btu/h W W W W W A A H M CFM L Dehumidifying Volume STD Indoor unit Fan Motor Speed Turbo SH H M L Output Capacitor RLA Type Diameter-Length Fan CFM CFM CFM pints/hour W /W in. in. in. 25.4 X 1 X 10.5 r/ m i n r/ m i n r/ m i n r/ m i n W F A in. width (L) Model Output Swing Motor Fuse (A) Sound Pressure Level Sound Power Level Net Weight /Gross Weight H M L H M L 294 253 218 1.69 14.0 22 MW09CIH 1260 1050 920 730 20 4 .0 0.38 Cross flow fan 3.62 X 25.4 Aluminum fin-copper tube 216 0.019 - 0.055 Evaporator Pipe Diameter Row-Fin Gap COOLING 115V~ 70 41 15 3100/10600 2650/9000 1300/4435 1050 640 180 1050 640 16.8 7.0 330 in. MP24AA 2 .4 PCB 3.15A 34 30 26 44 40 36 33 1/4 X 10 7/8 X 7 1/8 33.3X10.8X11 in. lbs 36X10X14 22 16X24.3X130.9 W A dB (A) dB (A) dB (A) dB (A) dB (A) dB (A) Remar k: s Rating conditions are: Cooling: Indoor air temperature 80¡F D.B. / 67¡F W.B. Outdoor air temperature 95.0¡F D.B. / 75¡F W.B. Heating: Indoor air temperature 70¡F D.B./ 60¡F W.B. Outdoor air temperature 47¡F D.B. / 43¡F W.B. 8 Specifications 12K of 115V Models Model Function Rated Voltage Frequency (Inverter different Compressor speed) Total Capacity (Inverter different Compressor speed) Power Input (Inverter different Compressor speed) Rated Input Rated Current Air Flow Volume Outdoor Unit MR12CH - SYSTEM MW12CIH High Standard Low High Standard Low High Standard Low High Standard High Standard Turbo SH H M L Dehumidifying Volume EER / C.O.P SEER/HSPF Indoor unit Fan Motor Speed Turbo SH H M L Output Capacitor RLA Type Diameter-Length Fan Hz Hz Hz W / Btu/h W / Btu/h W / Btu/h W W W W W A A CFM CFM CFM CFM pints/hour W /W r/m i n r/m i n r/m i n r/m i n W F A in. Evaporator Pipe Diameter Row-Fin Gap Sound Power Level 253 218 2.54 12.00 . 22 1260 1050 920 730 20 1.0 0.2 Cross flow fan 3.62X25.4 Aluminum fin-copper tube .276 .077-.055 in. H M L H M L 25.4X1X10.5 MP24AA 2.4 PCB 3.15A 34 30 26 44 40 36 W A dB (A) dB (A) dB (A) dB (A) dB (A) dB (A) in. Net Weight /Gross Weight 277 in. in. width (L) Model Output Swing Motor Fuse (A) Sound Pressure Level COOLING 208-230V~ 115 70 41 15 4100/14000 3520/12000 1320/4500 1050 640 180 1050 640 6.5 3.2 300 in. lbs 33 1/433.3X10.3X7.1 X 10 7/8 X 7 1/8 36X10X14 22 .26.3/30.9 Remarks Rating conditions are: Cooling: Indoor air temperature 26.7¡C D.B. / 19.4¡C W.B. Outdoor air temperature 35.0¡C D.B. / 23.9¡C W.B. Heating: Indoor air temperature 21.1¡C D.B./ 15.6¡C W.B. Outdoor air temperature 8.33¡C D.B. / 6.11¡C W.B. 9 Specifications Outdoor Unit MR09C1H Manufacturer/trademark SANYO Model C-6RZ110H1A Type Twin rotory Compressor L.R.A. (A) A 33 RLA(A) A 4.59 Power Input(W) W 800 Overload Protector Int11l-3979 Electronic Expansion Valve throttling Transducer starting Throttling Method Starting Method Working Temp Range Heat Exchanger Coil F Coil Aluminum fin-copper tube Pipe Diameter mm .275 Rows-Fin Gap in. 2 - .005 Coil length (l) x height (H) x coil width (L) Speed Fan Motor 23.94 X 20 X 1.73 rpm 900/650 Output of Fan Motor W 40 RL A A 0.17 Capacitor Air Flow Volume of Outdoor Unit Fan 41 - 115 μF / CFM 1118 Type-Piece Diameter Axial fan - 1 in. Defrosting Method Climate Type 15.7 / T1 Isolation I Moisture Protection Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level Sound Power Level IP24 PSI 552 PSI 175 dB (A) 53 dB (A) Dimension (W×H×D) in. 63 12.6 33 33.4 3/8 XX23 1/2XX21.3 12 1/2 Dimension of Package (L×W×H) in. 34.6 X 14.2 X 22.3 Net Weight /Gross Weight lbs 79.4/90.4 R410A lbs 2.65 . ft 25 .33 Refrigerant Name of refrigerant Weight Factory Prescharge Connection Gas additional charge Pipe Liquid Pipe Diameter Gas Pipe Diameter 02/H mm Φ6(1/4”) mm Φ9(3/8”) Max. Interunit Height Difference ft 33 Max. Interunit Piping Length ft 66 The above data is subject to change without notice. Please refer to the nameplate of the unit. 10 Specifications Outdoor Unit MR12C1H Manufacturer/trademark SANYO Model C-6RZ110H1A Type Twin rotory Compressor L.R.A. (A) A 33 RLA(A) A 4.59 Power Input(W) W Overload Protector Throttling Method Starting Method Working Temp Range Heat Exchanger Coil 41 - 115 Aluminum fin-copper tube Pipe Diameter mm Rows-Fin Gap in. 2 - .005 mm 747X508X44 rpm 900/680 Speed .275 Output of Fan Motor W 40 RL A A 0.17 μF / Capacitor Air Flow Volume of Outdoor Unit Fan F Coil Coil length (l) x height (H) x coil width (L) Fan Motor 800 Int11l-3979 Electronic Expansion Valve throttling Transducer starting CFM Type-Piece Diameter 1118 Axial fan in. Defrosting Method Climate Type 15.7 / T1 Isolation I Moisture Protection Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level Sound Power Level dB (A) IP24 PSI 552 PSI 175 dB (A) 55 65 33 3/8 X 23 1/2 XX12 1/2 33.4 X 12.6 21.3 Dimension (W×H×D) in. Dimension of Package (L×W×H) in. 34.6 X 14.2 X 22.3 Net Weight /Gross Weight lbs 79.4/90.4 R410A Weight lbs 2.65 . Factory Prescharge Connection Gas additional charge Pipe Liquid Pipe Diameter ft H 25 1/4 oz per ft Refrigerant Name of refrigerant Gas Pipe Diameter mm Φ6(1/4”) mm Φ9(3/8”) Max. Interunit Height Difference ft 33 Max. Interunit Piping Length ft 66 The above data is subject to change without notice. Please refer to the nameplate of the unit. 11 Specifications Appending date Table showing operation frequency limits for cooling and heating Outdoor Relative Humidity 40% Outdoor Relative Humidity 72% 140 130 120 Indoor Wet Bulb Temperature( ) 59°F 68°F 110 77°F 100 80 60 40 Capacity Change Ratio (%) Capacity Change Ratio (%) 140 130 120 59°F 60.8°F Indoor Wet Bulb Temperature( ) 110 62.6°F 100 80 60 40 20 20 15 35 55 75 95 Compressor Frequency(Hz) 15 35 55 75 95 Compressor Frequency(Hz) Performance date for both cooling and heating COOLING: Temperature Condition (°F) Indoor Outdoor 80.06/66.92 80/67 95/– Model name Standard pressure P (MPa) 09K 0.8 to 1.1 12K 0 .8 to 1 .0 Heat exchanger pipe temp. EVP (°F)C OD(°F) 53 to 57 50 to 54 105 to 104 109 to 113 Outdoor fan Compressor revolution Indoor fan mode (rps) mode Turbo Turbo High Rated High Rated HEATING: Temperature Condition (°F) Indoor Outdoor 67/60 47/43 46.99/42.99 66.98/60.08 Model name Standard pressure P (MPa) 09K 2.8 to 3.2 12K 2.8 to 3.2 Heat exchanger pipe temp. EVP (°F) 99 to 100 108 to 111 COD(°C) 2 to 4 0 to 3 Compressor Indoor fan Outdoor fan revolution mode (rps) mode Turbo Turbo High Rated High Rated NOTES : (1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent. (Thermistor themometer) (2) Connecting piping condition : 7.6 m 12 Specifications Expanded c apacity data tables for both cooling and heating Cooling Capacity Ratio (%) 110 • Conditions DB80°F/WB67°F Indoor: DB80.06˚F/WB66.92˚F Indoor air flow : TURBO Pipe length : 7.6m 100 90 80 115 113 111 108 106 104 102 100 99 97 95 93 91 90 70 Outdoor temp. (˚F) Capacity Variation Ratio According to Pipe Length 110 110 • Conditions • Conditions Indoor: DB80°F/WB67°F Outdoor: DB95°F/WB75°F 105 Indoor: DB80°F/WB67°F Outdoor: DB95°F/WB75°F 105 Indoor air flow: TURBO Indoor air flow: TURBO 100 100 95 95 Standard pipe length 7.6m 90 90 85 85 Maximum Elevation 7.6m Maximum pipe length 20m 80 05 10 15 20 Total pipe length (m) 25 30 80 01 .5 3.04 .5 6.07 .5 9.0 Total Elevation (m) 13 Specifications Operation C haracteristic Curve Cooling • Conditions 25.0 22.5 Indoor: DB80°F/WB67°F Outdoor: DB95°F/WB75°F Indoor air flow : TURBO Pipe lengt: 7.6m 20.0 Current (A) 9 btu unit 17.5 15.0 12.5 10.0 7.5 115V 5.0 2.5 0 01 02 03 04 05 06 07 80 09 0 Compressor speed (rps) 1 2 K o12 f 11 5 Vunit U n i ts btu Cooling 25.0 22.5 Current (A) 20.0 • Conditions : Indoor: DB80°F/WB67°F Outdoor: DB95°F/WB75°F Indoor air flow : TURBO Pipe length: 7.6m 17.5 15.0 12.5 10.0 115V 7.5 5.0 2.5 0 01 02 03 04 05 06 07 Compressor speed (rps) 14 09 80 0 Specifications 2.5 Noise criteria curve tables for both models 0099 Kbtu U nunits i ts 70 Indoor side noise when blowing Outdoor side noise 40 60 Noise/dB(A) Noise/dB(A) 35 30 25 50 40 30 Low MiddleH igh Turbo 20 0 Indoor fan motor rotating speed 20 40 60 80 100 Compressor frequency/Hz 112 2 Kbtu U n iunit ts 70 Indoor side noise when blowing Outdoor side noise 40 60 Noise/dB(A) Noise/dB(A) 35 30 25 50 40 30 20 Low MiddleH igh Indoor fan motor rotating speed Turbo 20 0 20 40 60 80 100 Compressor frequency/Hz 15 Constrction views 3. Construction Views 3.1 Indoor Unit H W D 5 1 31/4 5 21 542 61 6 3/4 9 Unit:m m 3.2 Outdoor Unit W2 D4 H2 W3 D2 W4 D3 Indoor Unit (mm) System Model Number 09K 0 9K 12K 1 2K 16 Outdoor Unit (mm) Cabinet Cabinet Additional Dimensions W H D W2 H2 D4 D2 W3 D3 W4 33 1/4 10 7/8 7 1/8 30 3/4 23 1/2 10 7/8 12 1/2 33 3/8 11 21 1/2 Refrigerant System Diagram 4. Refrigerant System Diagram Cooling Models INDOOR UNIT OUTDOOR UNIT GAS SIDE 3-WAY VALVE Muffler Discharge HEAT EXCHANGE (EVAPORATOR) Suction Accumlator COMPRESSOR HEAT EXCHANGE (CONDENSER) LIQUID SIDE 2-WAY VALVE Strainer Electric Expansion Valve Strainer COOLING 17 Schematic Diagram 5. Schematic Diagram 5.1 Electrical Date Indoor Unit Symbol Color symbol Symbol WHITE WH Color symbol BROWN BN YE YELLOW BU BLUE RD RED BK BLACK YELLOW GREEN YEGN PROTECTIVE EARTH Outdoor Unit Symbol Parts name L1 REACROR PCB1~PCB2 S10/S11S40/S70/S80/S90 Symbol Color symbol WH WHITE PRINTED CIRCUIT BOARD YE YELLOW CONNECTOR RD RED SAT OVERLOAD BN SAT OVERLOAD BN BROWN COMP COMPRESSOR BU BLUE PROTECTIVE EARTH BK BLACK YELLOW GREEN YEGN 5.2 Electrical wiring These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. Indoor Unit ROOM TEM.SENSOR DISPLAY TUBE TEM.SENSOR AP1 CN1 CN2 0 0 RT1 RT2 13 XT1 ROOM DISP-1 TUBE DISP-2 W4 BU L1 COM-OUT N(1) W5 BK W3 BN L1 CAP AC-L AP2 PG PGF SWING-UD FAN MOTOR 18 EVAPORATOR ELECTRIC BOX G G TC II SWING MOTOR(U.D) W1 YEGN TR_IN TR_OUT M2 M1 3 W2 YEGN L-OUT K4 JUMP 2 OUTDOOR UNIT N I TRANSFORMER 21 Schematic Diagram Outdoor Unit Cooling Models of 115V COMP CT1,2 W10 RD W3YEGN R COMP E TUBE OUTROOM EXHUAST TEM.SENSOR TEM.SENSOR TEM.SENSOR RT3 0 RT4 0 RT5 0 S I N D O O R W4 BK W14 BN L1 W1 BN L U N I T W W15 BU N(1) 2 3 V G OUTROOM EXHAUST OVERHEAT OUTTUBE E G XT2 W8 YEGN L2 L2 L2 W5 BU W6 YE W7 BK U G C L1 W2 BU N FILTER 1 3 2 4 E AP1 L4 W17 RD AC-L1 L4 W16 WH AC-N1 W13 YEGN POWER N L COMU AC-N3AC-N4 AC-L3 AC-L2 CN1 OFAN EKV M AC-N5 AC-L2 AC-L4 W18 YEGN W20 BU W23 OG W21 BN G G W19 BU W24 RD C4 C3 1 2 2 1 W22 WH FAN MOTOR G 19 Schematic Diagram 5.3 Printed Circuit Board TOP VIEW 4 1 2 3 5 6 7 1 Interface of neutral wire 2 Transformer input 3 Interface of PG motor 4 Auto button 5 Feedback from PG motor 6 Up&Down swing 7 Jumper cap 8 Indoor temperature sensor 9 Pipe temperature sensor 10 DISP-1, DISP-2 display interface 11 Protective tube 12 Communication interface 12 8 11 9 10 BOTTOM VIEW 20 Schematic Diagram TOP VIEW Terminal of jump wire, live wire and neutral wire, AC-N4 joint AC-N3, External connect highAC-L2 joint capacity positive terminal External connect highAC-L3 capacity negative Protective tube terminal Slug of on-off power High frequency transformer Stabilized voltage block 7805 IPM module Neutral wire terminal of 4-way valve Live wire terminal of 4-way valve Terminal of jumper wire, neutral wire Main relay Terminal of DC fan Terminal of compressor overload protector Discharge terminal of compressor Terminal of outdoor pipe temperature Outdoor ambient temperature sensor Protective tube Terminal of power lead-in wire and live wire Terminal of ground wire Terminal of Terminal of power lead-in communication wire wire and neutral wire BOTTOM VIEW 21 Function and Control 6. Function and Control 6.1 Remote Control Operations 1 2 START / STOP P res to s tart or s top operation. s ON/OFF Press it to start or stop operation : P ress to decrease temperature setting. MODE 3 : P res s to itincreas e temperature Press to select operation mode setting. (AUTO/COOL/DRY/FAN/HEAT) 4 AUTO FAN + : Press it to increase temperature P res s to s et fan s peed. setting 5 MODE : Press it to decrease temperature P res s to s elect operation mode setting (AUTO/COOL/DRY/FAN/HEAT). 2 1 1 2 3 10 10 12 13 8 14 9 9 12 13 15 TIMER TIMER ON ON Press itPress to set itauto-on timer. timer to set auto-on 7 11 11 CLOCK 6 8 7 7 Press itPress set clock. it to set swing angle 5 56 9 FAN SENSOR Press it to set fan speed 3 4 4 6 AIR SWEEP TIMER OFF Press it set swing angle. Press it to set auto-off timer 8 10 14 11 12 13 14 EXTEND CLOCK TEMPPress it to set clock X-FAN (page 31) ? TIMER OFF itTEMP Press to set auto-off timer (page 31) ? TURBO TURBO(page 32) ? SLEEP(page 32) SLEEP ? Note: Onlyname namedifferent different between Note: Only betweenX-FAN X-Fanand BLOW, 15 butbut thethe function is theissame. and Blow, function the same. 17 LIGHT LIGHT PressPress it to turn light. it toon/off turn the on/off the light. *Remote control works with cool and Heat Pump Models 22 Function and Control 1 ON/OFF : Press this button to start the unit operation .Press this button again to stop the unit operation. 2 MODE : Each time you press this button,a mode is selected in a sequence that goes from AUTO, COOL,DRY, FAN,and HEAT * , as the following: FAN HEAT * COOL AUTO DRY *Note:Only for models with heating function. After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will not be displayed on the LCD, and the unit will automatically select the suitable operation mode in accordance with the room temperature to make indoor room comfortable. 3 + : Press this button to increase set temperature.Holding down button above 2 seconds rapidly increases set temperature. In AUTO mode, set temperature is not adjustable. 4 Press this button to decrease set temperature.Holding down button above 2 seconds rapidly . decreases set temperature. In AUTO mode, set temperature is not adjustable. 5 FAN : Every press of FAN button changes the fan speed in the following order: Auto Low speed 6 Medium speed High speed : Every pressof the button changes the swing angle in the follow order: OFF This remote controller is universal . If any command the unit will carry out the command as , or is sent out, indicates the guide louver swings as: 23 Function and Control : 7 TIMER ON Press TIMER ON button, "ON" blinks and disappears. Within 5 seconds, every press of + or button increases or decreases the ON time setting by 1 minutes. Holding down either buton above 2.5 seconds rapidly changes the time setting by 1 minute and then by 10 minutes. Within 5 seconds after setting, press TIMER ON to confirm. To cancel the TIMER ON operation, press TIMER ON button. 8 TIMER OFF : Press TIMER OFF button to set TIMER OFF. The setting method is the same as TIMER ON. 9 CLOCK : Press CLOCK button, the icon blinks. During 5 seconds blinking, pressing + or - button adjusts preset time. Holding down either button above 2 seconds increases or decreases the time by 1 minute every 0.5 second. If you are still pressing the button after 10 minutes increased or decreased, the time will be changed by 10 minutes every 0.5 second. During blinking, press the CLOCK button again, the icon will be constantly displayed and it indicates that setting has been finished. 10 X-FAN: Pressing X-FAN button in COOL or DRY mode,the icon is displayed and the indoor fan will continue operation for 10 minutes in order to dry the indoor unit even though you have turned off the unit. After energization, X-FAN OFF is defaulted. X-FAN is not available in AUTO,FAN or HEAT mode. 11 TEMP: Press TEMP button, (set temperature), (indoor ambient temperature) and (outdoor ambient temperatur) is displayed circularly. Not displaying icon is defaulted. During operation of TEMP button, the set temperature is always displayed. Note: Outdoor ambient temperature is only displayed for some models. 24 Function and Control 12 TURBO: Press this button in COOL or HEAT mode turns on/off Turbo function. After TURBO function is set, its icon is displayed. When switching operation mode or changing fan speed, this function will be canceled automatically. at super high fan speed. (This function is not applicable for some models). 13 SLEEP: Press SLEEP button into SLEEP operation. Press SLEEP button again to cancel SLEEP. This function only can be used in COOL, HEAT (applicable to heat pump unit) or DRY mode, to maintain the most comfortable temperature for you. 14 LIGHT: Press LIGHT button turns on/off the display's light. If the light is tunrned on , displayed. If the light is tunrned off is disappears. 3 and 4 About lock Press "+ " and "-" buttons simultaneously to lock or unlock the keypad. If the remote controller is locked, is displayed. In this case, pressing any button, blinks three times. 2 and 4 About switch between fahrenheit and cenrigrade At unit OFF, press "MODE " and" - " buttons simultaneously to switch between ć and ̧ . 25 Function and Control Replacement of Batteries 1.Remove the battery cover plate from the rear of the remote controller. (As shown in the figure) 2.Take out the old batteries. 3.Insert two new AAA1.5V dry batteries, and pay attention to the polarity. 4. Replace the battery cover plate. ƾ Notes: ● When changing the batteries, do not use old or different batteries, otherwise, it may cause malfunction of the wireless remote control. ● If the wireless remote controller will not be used for a long time, please remove batteries to prevent damage from leaking batteries. ● The operation should be performed in its receiving range. ● It should be kept 1m away from the TV set or stereo sound sets. ● If the wireless remote controller does not operate normally, please take the batteries out and replace them after 30 s. If still not operating properly, replace the batteries. Sketch map for replacing batteries Emergency Operation When the wireless remote controller is lost o r damaged, please use the manual switch on the main unit. Operation will be in AUTO mode and the temperature setting or fan speed can not be changed . The manual switch can be operated as follow: Manual switch ƽ To operate: Pressing the AUTO/STOP button, the unit enters into AUTO mode. The microcomputer will monitor the room temperature to select the (COOL, HEAT, FAN) mode automatically,to abtain the comfortable effect. ƽ To turn off: Press the AUTO/STOP button to switch the unit off. 26 Fig.3 Function and Control 6.2 Description of Each Control Operation 1. Temperature Parameters Indoor preset temperature (Tpreset ) Indoor ambient temperature (Tamb.) 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function is available, for the first energization, if the compressor is at stop before de-energization, the compressor will be started without a 3-minute lag; if the compressor is in operation before de-energization, the compressor will be started with a 3-minute lag; and once started, the compressor will not be stopped within 6 minutes regardless of changes in room temperature; (1) Cooling Mode Working conditions and process of cooling When Tamb.≥ Tpreset, the unit will enter cooling operation, in which case the indoor fan, the outdoor fan and the compressor will work and the indoor fan will run at preset speed. When Tamb.≤ Tpreset -28 F, the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will run at preset speed. When Tpreset-28 F<Tamb.< Tpreset+34 F, the unit will remain at its previous state. Under this mode, the four-way valve will be de-energized and temperature can be set within a range from 61 F to 86 F If the compressor is shut down for some reasons , the indoor fan and the swing device will operate at original state. Tamb Start cooling Tpreset Original working state Tpreset -28 F Stop cooling 6 minutes 3 minutes 6 minutes Compressor Outdoor fan Indoor fan Preset fan Speed Run Stop Protection Antifreeze protection Under cooling and dry mode, 6 minutes after the compressor is started: If T evap.≤ 36 F , the compressor will operate at reduced frequency. If T evap.≤ -30 F is detected for durative 3 minutes, the compressor will stop, and after 30 seconds, the outdoor fan will stop; and under cooling mode, the indoor fan and the swing motor will remain at the original state. If T evap. ≥ 42 F and the compressor has remained at OFF for at least 3 minutes, the compressor will resume its original operation state. Total current up and frequency down protection If I total≤ A, frequency rise will be allowed; if I total ≥ B, frequency rise will not be allowed; ifI total ≥ C, the compressor will run at reduced frequency; and if I total ≥ D, the compressor will stop and the outdoor fan will stop with a time lag of 30s. (2) Dry Mode Working conditions and process of dry If T amb. Tpreset, the unit will enter cooling and dry mode, in which case the compressor and the outdoor fan will operate and the indoor fan will run at low speed. If T preset-28 F Tamb.≤ Tpreset, the compressor remains at its original operation state. If T amb.< Tpreset -28 F , the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will operate at low speed. 27 Function and Control Protection Protection is the same as that under the cooling mode. (3) Heating Mode Working conditions and process of heating If T amb.≤Tpreset+36°F, the unit enters heating mode, in which case the four-way valve, the compressor and the outdoor fan will operate simultaneously, and the indoor fan will run at preset speed in the condition of preset cold air prevention. If T amb.≥Tpreset+41°F, the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will stop after 60-second blow at low speed If T preset+36°F<T amb.< Tpreset +41°F, the unit will maintain its original operating status. Under this mode, the four-way valve is energized and temperature can be set within a range of 61 - 86°F . The operating symbol, the heating symbol and preset temperature are revealed on the display. Condition and process of defrost When duration of successive heating operation is more than 45 minutes, or accumulated heating time more than 90 minutes, and one of the following conditions is reached, the unit will enter the defrost mode after 3 minutes. a. Toutdoor amb.≥A°F, Toutdoor tube ≤W°F; b. A°F≤Toutdoor amb.<B°F, Toutdoor tube ≤X°F; c. B°F≤Toutdoor amb.<C°F, Toutdoor tube ≤Y°F; d. Touter amb.<C°F, Touter tube ≤Z°F At that time, the indoor fan stops and the compressor stops, and after 30 seconds the outdoor fan will stop, and then after 30 seconds, the four-way valve will stop. After 30 seconds, the compressor is initiated for raising the frequency to defrost frequency. When the compressor has operated under defrost mode for 7.5 minutes, or Touter tube ≥E°F, the compressor will be converted to 53Hz operation. After 30 seconds, the compressor will stop. And after another 30 seconds, the four-way valve will be opened, and after 60 seconds, the compressor and the outdoor fan will be started, the in door fan will run under preset cold air prevention conditions, and H1 will be displayed at temperat ure display area on the display panel. Defrost frequency is 70Hz. 3.Protection Cold air prevention The unit is started under heating mode (the compressor is ON): In the case of Tindoor amb.<75°F : if T tube ≤104°F and the indoor fan is at stop state, the indoor fan will begin to run at low speed with a time lag of 2 minutes. Within 2 minutes, if Ttube >40 , the indoor fan also will run at low speed; and after 1-minute operation at low speed, the indoor fan will be converted to operation at preset speed. Within 1-minute low speed operation or 2-minute non-operation, if Ttube >108°F , the fan will run at present speed. In the case of Tindoor amb.≥75°F : if Ttube ≤108°F, the indoor fan will run at low speed, and after one minute, the indoor fan will be converted to preset speed. With in one-minute low speed operation, if Ttube >108°F , the indoor fan will be converted to preset speed. 1 2 refers to, under initially heating mode, the indoor ambient temperature before the Note: Tindoor amb. command to start the compressor is performed according to the program, or after the unit is withdrawn from defrost, the indoor ambient temperature before the defrost symbol is cleared. Total current up and frequency down protection If the total current I total ≤W, frequency rise will be allowed; if Itotal ≥X, frequency rise will not be allowed; if Itotal ≥Y, the compressor will run at reduced frequency; and if Itotal ≥Z, the compressor will stop and the outdoor fan will stop with a time lag of 30s. (4) Fan Mode Under the mode, the indoor fan will run at preset speed and the compressor, the outdoor fan, the four-way valve and the electric heater will stop. Under the mode, temperature can be set within a range of 61°F - 86°F. (5) AUTO Mode Working conditions and process of AUTO mode Under AUTO mode, standard cooling temperature Tpreset is 77°F and standard heating temperature Tpreset is 64.4°F. a. Once energized, if Tamb.≤68°F, the unit will be started under heating mode; if 68°F < Tamb .< 77°F, the unit will run under fan mode and the operation indicator lamp will be bright; and if Tamb.≥77°F, the unit will be started under cooling mode. 28 Function and Control a. Under AUTO mode, if Tamb.≥Tpreset is detected, the unit will select to run under cooling mode, in which case implicit preset temperature is 77°F; if T amb.≤Tpreset 28°F, the compressor will stop, the outdoor fan will stop with a time lag of 1 minute, and the indoor fan will run at preset speed; and if Tpreset –(28°F )< Tamb.< Tpreset , the unit will remain at its original state. b. Under AUTO mode, if Tamb . ≤Tpreset +36°F is detected, the unit will select to run under heating mode, in which case implicit preset temperature is 64°F ; if Tamb .≥Tpreset 41°F, the compressor will stop, the outdoor fan will stop with a time lag of 1 minute, and the indoor fan will run under the mode of residue heat blowing; and if Tpreset +36°F < Tamb.< Tpreset +41°F, the unit will remain at its original state. The cooling-only unit will run under fan mode. c. Under AUTO mode, if 68°F< Tamb.< 77°F, the unit will remain at its original state. 2.Protection a. In cooling operation, protection is the same as that under the cooling mode; b. In heating operation, protection is the same as that under the heating mode; c. When ambient temperature changes, operation mode will be converted preferentially. Once started, the compressor will remain unchanged for at least 6 minutes. (6) Common Protection Functions and Fault Display under COOL, HEAT, DRY and AUTO Modes Overload protection Ttube : measured temperature of outdoor heat exchanger undercooling mode; and measured temperature of indoor heat exchanger under heating mode. 1) Cooling overload a. If T tube ≤106°F , the unit will return to its original operation state. b. If T tube ≥131°F, frequency rise is not allowed. c. If T tube ≥136°F, the compressor will r un at reduced frequency. d. If T tube ≥144°F , the compressor will stop and the indoor fan will run at preset speed. 2) Heating overload a. If T tube ≤106°F , the unit will return to its original operation state. b. If T tube ≥131°F, frequency rise is not allowed. c. If T tube ≥136°F, the compressor will run at reduced frequency. d. If T tube ≥144°F , the compressor will stop and the indoor fan will blow residue heat and then stop. Exhaust temperature protection of compressor If exhaust temperature ≥ 208°F, frequency is not allowed to rise. If exhaust temperature ≥ 217°F, the compressor will run at reduced frequency. If exhaust temperature ≥ 230°F, the compressor will stop. If exhaust temperature ≤ 194°F and the compressor has stayed at stop for at least 3 minutes, the compressor will resume its operation. Communication fault If the unit fails to receive correct signals for durative 3 minutes, communication fault can be justified and the whole system will stop. Module protection Under module protection mode, the compressor will stop. When the compressor remains at stop for at least 3 minutes, the compressor will resume its operation. If module protection occurs six times in succession, the compressor will not be started again. Overload protection If temperature sensed by the overload sensor is over 239°F, the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds. If temperature is below 203°F, the overload protection will be relieved. If voltage on the DC bus is below 150V or over 420V, the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds. When voltage on the DC bus returns to its normal value and the compressor has stayed at stop for at least 3 minutes, the compressor will resume its operation. Faults of temperature sensors 29 Function and Control Designation of sensors Faults The sensor is detected to be open-circuited or short-circuited for successive 30 Indoor ambient temperature seconds The sensor is detected to be open-circuited or short-circuited for successive 30 Indoor tube temperature seconds The sensor is detected to be open-circuited or short-circuited for successive 30 Outdoor ambient temperature seconds The sensor is detected to be open-circuited or short-circuited for successive 30 Outdoor tube temperature seconds, and no detection is performed within 10 minutes after defrost begins. After the compressor has operated for 3 minutes, the sensor is detected to be Exhaust open-circuited or short-circuited for successive 30 seconds. After the compressor has operated for 3 minutes, the sensor is detected to be Overload open-circuited or short-circuited for successive 30 seconds. 3. Other Controls (1) ON/OFF Press the remote button ON/OFF: the on-off state will be changed once each time you press the button. (2) Mode Selection: Press the remote button MODE, then select and show in the following ways: AUTO, COOL, DRY, FAN, HEAT, AUTO. (3) Temperature Setting Option Button Each time you press the remote button TEMP+ or TEMP-, the setting temperature will be up or down by 34°F. Regulating Range: 61°F~86°F, the button is useless under the AUTO mode. (4) Time Switch You should start and stop the machine according to the setting time by remote controller. (5) SLEEP State Control a. When the air conditioner is under the mode of COOL, DRY, and the SLEEP mode has been set well, after the SLEEP state keeps about 1 hour, the pre-setting T will raise 34°F, and it will raise 34°F again after 2 hours, so it raise 36°F in 2 hours, then it will run on at the setting temperature and fan speed. b. When the air conditioner is under the mode of HEAT, and the Timer has been set well, after the SLEEP state keeps about 1 hour, the pre-setting T will reduce 34°F, and it will reduce 34°F again after 2 hours, so it reduce 36°F in 2 hours, then it will run on at the setting temperature and wind speed. c. The setting temperature keeps the sa me under the FAN mode and AUTO mode. (6) Indoor Fan Control The Indoor Fan can be set as HIGH, MED, LOW by remote controller, and the Indoor Fan will be respectively run at high, medium, low speed. It will also be set as AUTO, and the Indoor Fan is as the following at the automatic fan speed. Cooling mode: Tring ≥ T setting+ 2, high speed; Tsetting- 2 T ring T setting+ 2, medium speed; Tring ≤ Tsetting – 2, low speed. Sending fan mode: : Tring T setting+ 4, high speed; Tsetting +2≤T ring ≤ T setting+ 4, medium speed; T ring T setting+2, low speed. Moisture removal mode: force to be set as the low speed Heating mode: T ring ≤ Tsetting+ 1 high speed; Tsetting+1 Tring T setting+ 5, medium speed; Tring ≥Tsetting+ 2, low speed. (7) Buzzer Control The buzzer will send a sound when the air conditioner is powered up or received the information sent by the remote control or there is a button input, the single tube cooler doesn’t receive the remote control ON signal under the mode of heating mode. (8) Auto button If the controller is on, it will stop by pressing the button, and if the controller is off, it will be automatic running state by pressing the button, swing on and light on, and the main unit will run based on the remote control if there is remote control order. (9) Up-and-Down Swinging Control When power on, the up-and-down motor will firstly move the air deflector to o counter-clockwise, close the air outlet. After starting the machine, if you don’t set the swinging function, heating mode and auto-heating mode, the up-and-down air deflector will move to D clockwise; under other modes, the up-and-down air deflector will move to L1. If you set the swing function when you start the machine, then the wind blade will swing between L and D. The air deflector has 7 swing states: Location L, Location A, Location B, Location C, Location D, Location L to Location D, stop at any location between L-D (the included angle between L~D is the same). The air deflector will be closed at 0 location, and the swing is effectual only on condition that setting the swing order and the inner fan is running. The indoor fan and compressor may get the power when air deflector is on the default location. 30 Function and Control Heating angle Cooling angle (10) Display Operation pattern and mode pattern display All the display patterns will display for a time when the unit is powered on, the operation indication icon will display in red under standby status. When the machine is start by remote controller, the indication icon will light and display the current operation mode (the mode light includes: Cooling, heating and dry). If you close the light key, all the display icons will close. Double-8 display According to the different setting of remote control, the nixie lamp may display the current temperature (the temperature scope is from 61°F to 86°F ) and indoor ambient temperature. The heating and air supply temperature will display 77°F under auto-mode, the temperature will display 64 F under the heating mode, and the temperature will display H1 under the defrosting mode.(If you set the fahrenheit temperature display, the nixie lamp will display according to fahrenheit temperature) (11) Protection function and failure display E2: Freeze-proofing protection E4: Exhausting protection E5: Overcurrent protection E6: Communication failure E8: Overload protection F1: Indoor ambient sensor start and short circuit (continuously measured failure in 30S) F2: Indoor evaporator sensor start and short circuit (continuously measured failure in 30S) F3: Outdoor ambient sensor start and short circuit (continuously measured failure in 30S) F2: Outdoor condenser sensor start and short circuit (continuously measured failure in 30S, and don’t measure within 10 minutes after defrosted) F5: Outdoor exhausting sensor start and short circuit (continuously measured failure in 30S after the compressor operated 3 minutes) H3: Overload protection of compressor H5: Module protection PH: High-voltage protection PL: Low-voltage protection P1: Nominal cooling and heating P2: Maximum cooling and heating P3: Medium cooling and heating P0: Minimum cooling and heating (12) Drying Function You may start or stop the dry function under the modes of cooling and dry at the starting status (The modes of automatism, heating and air supply do not have dry function). When you start the dry function, after stop the machine by pressing the switch button, you should keep running the infoor fans for 10 minutes under low air damper (The swing will operate as the former status within 10 minutes, and other load is stopped), then stop the entire machine; When you stop the dry function, press the switch button will stop the machine directly. When you start the drying function, operating the drying button will stop the inner fans and close the guide louver. (13) Memory function when interrupting the power supply Memory content: mode, swing function, light, set temperature and wind speed. After interrupted the power supply, the machine will start when recovering the power according to the memory content automatically. If the last remote control command has not set the timed function, the system will remember the last remote control command and operate according it. If the last remote control command has set timed function and the power supply is interrupted before the timed time, the system will remember the timed function of the last remote control command, the timed time will recounted form power on. If the last remote control command has set timed function, the time is out and the system is start or stop according to the set time when the power supply is interrupted, the system will remember the operation status before the power supply was interrupted, and do not carry out timed action; The timed clock will not be remembered. 31 Function and Control 6.3 Detection of temperature sensor malfunction Detect malfunctions of temperature sensor any time. In defrosting period, the temperature sensor malfunction will not be detected. 5 min after finishing defrosting, the system begins to detect the temperature sensor malfunction. In other times, the temperature sensor malfunction will be detected. 1. When short-circuit occurs to the temperature sensor for 30s: The temperature sensor overheats. In this case, the complete unit will stop for protection. At the same time, the temperature protection and temperature sensor malfunction will be shown. 2. When break-circuit occurs to the temperature sensor for 30s: The unit will stop and the temperature sensor malfunction will be displayed 6.4 Frequency Control <Outline> When starting the compressor, or when conditions are varied due to the change of the room, the frequency must be initialized according to the D value of the indoor unit and the Q value of the indoor unit. Q value: Indoor unit output determined from indoor unit volume, air flow rate and other factors. 1. Pcontrol Calculate D value in each sampling time (20 seconds), and adjust the frequency according to its difference from the frequency previously calculated. 2. Icontrol If the operating frequency is not change more than a certain fixed time, adjust the frequency up and down according to the obtaining the fixed D value. When the When the D value, D value is small...lower the frequency. D value is large...increase the frequency. 3. Frequency management when other controls are functioning When frequency is drooping; Frequency management is carried out only when the frequency droops. For limiting lower limit Frequency management is carried out only when the frequency rises. 4. Upper and lower limit of frequency by PI control The frequency upper and lower limits are set depending on indoor unit. When low noise commands come from the indoor unit or when outdoor unit low noise or quiet commands come from indoor unit, the upper limit frequency must be lowered than the usual setting. 6.5 3-minutes Standby Prohibit to turn ON the compressor for 3 minutes after turning it off.(except when defrosting) 6.6 Compressor Protection Function When turning the compressor from OFF to ON, the upper limit of frequency must be set as follows. (The function must not be used when defrosting.) Frequency 32 FCG 3 88 FCG 2 64 FCG 1 TCG1 48 240 TCG2 TCG3 360 180 FCG3 FCG2 FCG1 TCG 1sec TCG 2sec TCG 3sec Time Function and Control 6.7 Discharge Pipe Control Outline The discharge pipe temperature is used as the compressor’s internal temperature. If the discharge pipe temperature rises above a certain level, the operating frequency upper limit is set to keep this temperature from going up further. Detail Divide the Zone Stop zone Drooping zone Keep zone Up zone Heat exchanger thermistor temperature Reset zone Management within the Zones Zone Stop zone Drooping zone Keep zone Return / Reset zone Control contents When the temperature reaches the stop zone, stop the compressor and correct abnormality. Start the timer, and the frequency will be drooping. Keep the upper limit of frequency. Cancel the upper limit of frequency. 6.8 Input Current Control Outline Detect an input current by the CT during the compressor is running, and set the frequency upper limit from such input current. In case of heat pump model, this control is the upper limit control function of the frequency which takes priority of the lower limit of four way valve activating compensation. Detail The frequency control will be made within the following zones. 2 Hz drooping 1.0second after rushing in the drooping zone After 2.5 seconds Compressor stops 1 Stop zone 2 Drooping zone Keep zone 3 Reset zone When a “stop current” continues for 2.5 seconds after rushing on the stop zone, the compressor operation stops. If a “drooping current” is continues for 1.0 second after rushing on the drooping zone, the frequency will be 2 Hz drooping. Repeating the above drooping continues until the current rushes on the drooping zone without change. In the keep zone, the frequency limit will remain. In the return / reset zone, the frequency limit will be cancelled. Limitation of current drooping and stop value according to the outdoor air temperature 1. In case the operation mode is cooling * The current droops when outdoor air temperature becomes higher than a certain level (model by model). 2. In case the operation mode is heating * The current droops when outdoor air temperature becomes higher than a certain level (model by model). 6.9 Freeze-up Protection Control Outline 33 Function and Control During cooling operation, the signals being sent from the indoor unit allow the operating frequency limitation and then prevent freezing of the indoor heat exchanger. (The signal from the indoor unit must be divided into the zones as the followings.) Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 sec from operation start. Control in Each Zone Heat exchanger thermistor temperature A Up zone B Keep zone C Drooping zone D Stop zone E 34 Return/Reset zone Function and Control Frequency PI control 0Hz 60sec. 50sec. Compressor Four way valve 600sec. 50sec. ON OFF ON OFF 5sec. Fan 5sec. ON OFF Electronic expansion valve opening 450pps 350pps 450pps Initial opening 6.12 Fan Control Outline Fan control is carried out according to the following priority. 1. Fan ON control for electric component cooling fan 2. Fan control when defrosting 3. Fan OFF delay when stopped 4. ON/OFF control in cooling operation 5. Tap control when drooping function is working 6. Fan control in forced operation 7. Fan control in indoor/outdoor unit silent operation 8. Fan control in powerful mode 9. Fan control in normal operation Detail Fan OFF Control when Stopped * Fan OFF delay for 60 seconds must be made when the compressor is stopped. Tap Control in indoor/outdoor unit silent operation 1. When Cooling Operation When the outdoor air temperature is lower than 99°F, the fan tap must be set to L. 2. When Heating Operation When the outdoor air temperature is higher than 39°F, the fan tap must be turned to L (only for heat pump model). 35 Installation Manual 7. Installation Manual 7.1 Notices for installation Important Notices The unit installation work must be done by qualified personnel according to the local rules and this manual. Before installating, please contact with local authorized maintenance center, if unit is not installed by the authorized maintenance center, the malfunction may not solved, due to discommodious contacts. When removing the unit to the other place, please firstly contact with the authorized Maintenance Center in the local area. T he appliance must be positioned so that the plug is accessible After pull out the power plug then make the appliance operation again，to avoid the icing of outdoor unit damage axial flow fan，should electrify the appliance but not operation for 4 hours for warm-up purpose(only for Heat Pump models). Basic Requirements For Installation Position Install in the following place may cause malfunction. If it is unavoidable contact with service center please: Place where strong heat sources, vapors, flammable gas or volatile object are emitted. Place where high-frequency waves are generated by radio equipment, welders and medical equipment. Place where a lot of salinities such as coast exists. Place where the oil (machine oil) is contained in the air. Place where a sulfured gas such as the hot spring zones is generated. Other place with special circumstance. Indoor Unit Installation Position Selection The air inlet and outlet vent should be far from the obstruction, make sure that the air can be blown through the whole room. Select a position where the condensing water can be easily drained out, and the place is easily connected for outdoor unit. Select a location where the children can not reach. Can select the place where is strong enough to withstand the full weight and vibration o f the unit. And will not increase the noise. Be sure to leave enough space to allow access for routine maintenance. The height of the installed location should be 8ft or more from the floor. Select a place about 1m or more away from TVset or any other electric appliances. Select a place where the filter can be easily taken out. Make sure that the indoor unit installation should accord with installation dimension diagram requirements. Do not use the unit in the immediate surroundings of a laundry a bath a shower or a swimming pool. 36 Installation Manual Outdoor Unit Installation Position Selection Select a location from which noise and outflow air emitted by unit will not inconvenience neighbors, animals, plants. Select a location where there should be sufficient ventilation. Select a location where there should be no obstructions cover the inlet and outlet vent . The location should be able to withstand the full weight and vibration of the outdoor unit and permit safe installation. Select a dry place, but do not expose under the direct sunlight or strong wind. Make sure that the outdoor unit installation dimension should accord with installation dimension diagram, convenient for maintenance, repair. The height difference of connecting the tubing within 16ft, the length of connecting the tubing within 32ft. Select a place where it is out of reach for the children. Select a place where will not block the passage and do not influence the city appearance. Safety Requirements For Electric Appliances 1. The power supply should be used the rated voltage and AC exclusive circuit, the power cable diameter should be satisfied. 2. Don't drag the power cable emphatically. 3. It should be reliably earthed, and it should be connected to the special earth device, the installation work should be operated by the professional. The air switch must have the functions of magnetic tripping and heat tripping, in order to protect the short circuit and overloading. 4. The min. distance from the unit and combustive surface is 5ft. 5. The appliance shall be installed in accordance with national wiring regulations. 6. An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be connected in fixed wiring. Make sure that the Live wire or Zero line as well as the ground wire in the family power socket can not be wrong connected, there should be reliable and no short circuit in the diagram. wrong connection may cause fire. Ground requirements 1. Air conditioner is type I electric appliance, thus please do conduct reliable earthing measure. 2. The yellow-green two-color wire in air conditioner is earthing wire and cannot be used for other propose. It cannot be cut off and be fix it by screw, otherwise it would cause electric shock. 3. The earth resistance should accord to the National Criterion. 4. The user power must offer the reliable grounding terminal. Please don't connect the earthing wire with the following place: Tap water pipe. Gas pipe. Contamination pipe. Other places that professional personnel consider them unreliable. 5. The model and rating values for fuses according the silk print on fuse cover or related PCB board. 37 Installation Manual 7.2 Installation dimension diagram Space to the ceiling 6 in. side above Space to the wall 6 in. to side 6 in. to side Space to the wall 10 ft. m fro nt f ro 6 ft. from bottom Air outlet side Space to the floor Space to the obstruction 12 in. side 19 in. top The dimensions of the space necessary for correct installation of the appliance including the minimum permissible distances to adjacent structures Air inlet side ck ba n. i 12 Space to the wall Space to the wall 12 in. side 7f t. nt fro Air outlet side 38 Installation Manual 7.3 Installing Indoor Unit Installing Mounting Plate 1.Make the mounting plate completely level . As the water tray's oulet of the indoor unit is two-way type, the indoor unit during installation should slightly slant to watert tray's outlet for smooth drainage of condensing water. 2.Fix the mounting plate on the wall with screws.(Where is pre-covered with plastic granula) 3.Be sure that the mounting plate has been fixed firmly enough to withstand the weight of an adult of 60kg; further more, the weight should be evenly shared by each screw. Wall Space to the wall 6 in above Mark on the middle of it Gradienter Wall Space to the wall 6 in above Right Left 2.5 in Fig.5 (Rear piping hole) 2.5 in (Rear piping hole) Boring Piping Hole Indoor 1.Make the piping hole (2.5 in) in the wall at a slight downward slant to the outdoor side. Wall pipe 2.Insert the piping-hole sleeve into the hole to prevent the connection piping and wiring from being damaged when passing through the hole. Outdoor Seal pad Ø55 Installing Drain Hose 1.For proper draining, the drain hose should be placed at a downward slant. Wrenched 2.Do not wrench or bend the drain hose or flood its end by water. 3.The long drain hose passing through indoor areas should be wrapped with insulation material. Bent Flooded Connecting Indoor and Outdoor Electric Wires 1.Open the front panel. 2.Remove the wiring cover as shown in Fig 6. unit) the the holehole in the 3.Make the power connection cord and signal control wire (only (onlyffororheat heatpump pump unitthrough ) through in the the back of indoor unit. 4.Reinstall the clamp and wiring cover. 5.Recovert he front panel. Fig.6 39 Installation Manual NOTE: All interconnecting wiring between indoor and outdoor unit must be performed by a a licenced electrical contractor The electric wiring must be correctly connected.Improper connection may cause spare parts malfunction. Tighten the terminal screws adequately to prevent loosening. After tightening the screws, slightly pull the wire and confirm whether it is firm or not. Ensure the electrical connections are properly earthed to prevent electrical shocks. Ensure all wiring connections are secure and the cover plates are reinstalled properly.Poor installations that allow dust or moisture incursion may cause fire or electrocution. Installing Indoor Unit The piping can be output from right, right rear, left or left rear. When routing the piping and wiring from the left or right side of indoor unit, cut off the tailings from the chassis as necessary(As shown in Fig.7) Cut off the tailings 1 when routing the wiring only; Cut off the tailings 1 and tailings 2 when routing both the wiring and piping. Take out the piping from body case, wrap the piping, power cords, drain hose with the tape and make them through the piping hole. (As shown in Fig.8) Hang the mounting slots of the indoor unit on the upper hooks of the mounting plate and check if it is firm enough.(As shown in Fig.9) The height of the installed location should be 6ft 8ft or more from the floor. Gas side pipe External connection electric wire Liquid side piping Tailing 2 side piping Tailing 1 Gas insulation Fig.7 Liquid side Piping insulation Finally wrap it Water drainage pipe with tape Left Left rear Right Right rear Fixing hook Mounting plate Fig.8 Mounting plate Fig.9 Installing Connection Pipe Align the center of the piping flare with the relevant valve. Screw in the flare nut by hand and then tighten the nut with spanner and torque wrench referring to the following: Hex nut diameter Tightening torque (lb ft) 11 ~ 14.7 22.8 ~ 25.8 36.9 ~ 40.6 44.3 ~ 47.9 51.6 ~ 55.3 Indoor unit piping Spanner Taper nut Piping Torque wrench NOTE: Firstly connect the connection pipe to indoor unit, then to outdoor unit; pay attention to the piping bending, do not damage the connection pipe; ensure the joint nut is adequately tightened, otherwise it may cause leakage. 40 Installation Manual 7.4 Installing Outdoor Unit Electric wiring Disassemble the cable cross plate sub-assy on the outdoor unit right side plate. Take off wire clamp. Connect and fix power connect cord (for cooling and heating unit,connect and fix power connect cord and signal control wire)to terminal of line bank. Wiring should fit that of indoor unit. Fix the power connection cable with wire clamp, (for cooling and heating unit, use the wire clamp to fix the power connection cable and the signal control wire), then connect the corresponding connector. Ensure wire has been fixed well. Install the cable cross plate sub-assy. Cable Cross Plate sub-assy For 115V Uints Power For 208~230V Uints Power NOTE: *Note: Terminal 2 is the communication connection Wrong wiring may cause spare parts malfunction. After the cable fixed, make sure there should be a free space between the connection and connection and fixing place on the lead wire. Air purging and leakage test 1. Connect charging hose of manifold valve to charge end of low pressure valve (both high/low pressure valves must be tightly shut). 2. Connect joint of charging hose to vacuum pump. Liquid pipe 3. Fully open handle handle of Lo manifold valve. Gas pipe 4. Open the vacuum pump to evacuate. At the beginning, slightly Valve cap loosen joint nut of low pressure valve to check if there is air coming inside. (If noise of vacuum pump has been changed, the reading of multimeter is 0) Then tighten the nut. 5. Keep evacuating for more than 15mins and make 5 sure the reading of multi-meter is Vacuum gauge Vacuum pump Fig. 6. Fully open high/low pressure valves. 7. Remove charging hose from charging end of low pressure valve. 8. Tighten bonnet of low-pressure valve. (As shown in Fig.10) Condensate drainage of outdoor unit (not for cooling only) The condensate and defrosting water formd during heating in the outdoor unit can be properly discharged by drainage pipe . Installation method:set the drain connection in Ø 25 hole of the chassis has been installed and then connect drainage pipe with drain nozzle,so that condensate and defrosting water can be properly discharged Chassis Drain connection 41 Installation Manual 7.5 Check after Installation and Operation Test Check after Installation Items to be checked Possible malfunction Has it been fixed firmly? The unit may drop, shake or emit noise. Have you done the refrigerant leakage test? It may cause insufficient cooling(heating) capacity Is heat insulation sufficient? It may cause condensation and dripping. Is water drainage satisfactory? It may cause condensation and dripping. Is the voltage in accordance with the rated voltage marked on the nameplate? Is the electric wiring and piping connection installed correctly and securely? Has the unit been connected to a secure ground connection? It may cause electric malfunction or damage the product. It may cause electric malfunction or damage the part. It may cause electrical leakage. Is the power cord specified? It may cause electric malfunction or damage the part. Are the inlet and outlet openings blocked? It may cause insufficient cooling(heating) capacity. Is the length of connection pipes and refrigerant capacity been recorded? The refrigerant capacity is not accurate. Operation Test Before Operation Test Do not switch on power before installation is finished completely. Electric wiring must be connected correctly and securely. Cut-off valves of the connection pipes should be opened. All the impurities such as scraps and thrums must be cleared from the unit. Operation Test Method Switch on power and press "ON/OFF" button on the wireless remote controller to start the operation. Press MODE button to select the COOL, HEAT (Cooling only unit is not available), FAN to check whether the operation is normal or not. 42 Installation Manual 7.6 Installation and Maintenance of Healthy Filter(Optional) Installation of Healthy Filter 1. Lift up the front panel from the two ends of it, as the arrow direction shown. Then pull the air filter out. (as shown Fig.a) Fig. a 2. Attach the healthy filter onto the air filter, (as shown in Fig.b).. Fig. b Air filter Healthy filter 3. Mount the air filter properly along the arrow direction in Fig.c, and then close the panel cover. Fig. c Cleaning and Maintenance Remove the healthy filter before cleaning and re-install it after clean according to the installation instruction, but can't with brush or hard things. After washing, be sure to shake off remaining water and dry in the shade. Service Life The healthy filter commonly has its usage life time for one year under normal condition. As for silver ion filter, it is invalid when its surface becomes black (green). ƽThis supplementary instruction is provided for reference to the unit with healthy filter. If the graphics provided herein is different from the physical goods, the latter one shall prevail. The quantity of healthy filters shall be based on the actual delivery. 43 Troubleshooting 9. Troubleshooting 9.1 Precautions before Performing Inspection or Repair Be cautious during installation and maintenance. Do operation following the regulations to avoid electric shock and casualty or even death due to drop from high altitude. * Static maintenance is the maintenance during de-energization of the air conditioner. For static maintenance, make sure that the unit is de-energized and the plug is disconnected. * Dynamic maintenance is the maintenance during energization of the unit. Before dynamic maintenance, check the electricity and ensure that there is ground wire on the site. Check if there is electricity on the housing and connection copper pipe of the air conditioner with voltage tester. After ensure insulation place and the safety, the maintenance can be performed. Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power. At times such as when the circuit board is to be replaced, place the circuit board assembly in a vertical position. Normally,diagnose troubles according to the trouble diagnosis procedure as described below.(Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.) No. Troubleshooting procedure Precautions when inspecting the control section of the outdoor unit: A large-capacity electrolytic capacitor is used in the outdoor unit controller 1 Confirmation 2 Judgement by Flashing LED of Indoor/Outdoor Unit 3 How to Check simply the main part (inverter).Therefore,if the power supply is turned off,charge(charging voltage DC280V to 380V)remains and discharging takes a lot of time.. After turning off the power source,if touching the charging section before discharging, an electrical shock may be caused. Please open the outdoor unit after the unit is power off for 20min. 9.2 Confirmation (1)Confirmation of Power Supply Confirm that the power breaker operates(ON) normally; (2)Confirmation of Power Voltage Confirm that power voltage is AC 220-240± 115 ± 10%. 10%. If power voltage is not in this range, the unit may not operate normally. 9.3 Judgement by Flashing LED of Indoor/Outdoor Unit *Trouble shooting is for cooling and Heat Pump models. 44 Troubleshooting The breaker trips at once when it is set to "ON". Trip of breaker or blow of fuse The breaker trips in few minutes when it is set to "ON" Measure insulation resistance to grou nd to see if there is any leakage. The circuit or the part of the air conditioner has malfunction. They heat and break the insulation and lead to short circuit or creepage. Measure the insulation resistance or eliminate the malfunction one by one. If the breaker itself has malfunction, then replace the breaker. Check power supply circuit. Air conditioner can not start up No power The air conditioner does not react after it is powered ( after the plug is inserted, the buzzer does not sound and the remote startup has no response) Power plug is not well plugged in and poor connection Check if the plug is properly plugged in and make the loose contact firm. Fuse of controller burnt out Change controller fuse The transformer connection is loose or has bad contact or the transformer has malfunction Fasten the wiring; measure the output voltage of the transformer, if it is incorrect, change the transformer Controller is broken The remote controller signals (after it is powered, the buzzer will sound, unless it has malfunction) Check remote controller Remote controller is short of power Change batteries Remote controller malfunction First, press the manual switch button AUTO,if there is no response,check based on the above methods. If it runs normally after pressing the button,check again whether the installation position and the connection wire of the reception head is correct. If it is correct,then replace the receiver or the remote controller. Receiver loose or poor connection Receiver is broken Power voltage is too low Check the voltage. If it is lower than 10% of the rated voltage, check the cause, improve the power supply condition and add the stabilized voltage power supply. 45 Troubleshooting Improper set of temperature Adjust set temperature If cooling (heating) load is Check the forecasted load of cooling (heating) proper The refrigerant has leakage or is insufficient heck and fill the leakage, then vacuumize it and supplement the refrigerant as required Leakage between the high presMalfunction of refrigerant flow sure and the low pressure inside the compressor Malfunction of four-way valve Local block of capillary Poor COOL(HEAT) operation Replace the compressor Blockage of cooling system Heat insulation for the connection pipes of the indoor unit and the outdoor unit is bad. Replace the four-way valve Replace the capillary Judge whether the system is blocked by observing the condensation of evaporator and the pressure value of the high pressure manometer and take measures to deal with the system. Make sure that heat insulation for the thick and thin pipes is good. Heat insulation must also be provided for the joint andthe exposed part of the copper pipe . Block of outdoor heat exchanger Clean the dust accumulated on the surface of the heat exchanger. Air filter were blocked Clean the filter To set the fan speed to high or Fan speed was set too slow Air circulation is insufficient Fan rotation speed becomes low The installation position of the outdoor unit is not appropriate. The outdoor temperature is too high. The air tightness is not enough. People come in and out too frequently. There are heating devices indoors. 46 middle speed Capacitor damage Replace the capaci- Motor damage Replace the motor tor Good ventilation must be provided for the installation position of the outdoor unit. Properly install the rainproof plate or the sunproof plate. If the maximum cool air still can not meet the requirement, it is suggested to replace the air conditioner. Keep certain air tightness indoors, try not to use electricalappliance with large quantity of heat Troubleshooting The fan does not run when it is set to supply air. In the cooling and heating mode, the compressor runs, but the outdoor fan does not run. The indoor fan motor is burned or breaks or has the heat protector malfunction. Replace the fan motor or the defective part. The built-in heat protector of the motor breaks frequently because the motor is abnormal. Replace the fan motor Wrong connection Make the correction connection based on the circuit drawing. The fan capacitor has open circuit or is damaged Replace the fan capacitor of the same type and same specification. The outdoor fan motor is damaged. Replace the fan motor Wrong connection Make the correct connection based on the circuit drawing. The outdoor fan capacitor is damaged. Replace the fan capacitor Malfunction of compressor When cooling or heating, outdoor fanruns,compressor doesn't run. The compressor is too hot and leads to the action of the protector. Replace the compressor Breakage of running capacitor of compressor Replace the capacitor The voltage is too low or too high. Manostat is recommended. Wrong wire connection Connect the circuit diagram correctly The protector itself has malfunction. Use the multimeter to check whether the contact of the compressor is on when it is not overheated. If it is not on, then replace the protector The refrigerant is not enough or is too much. Adjust the volume of the refrigerant The capillary is blocked and the temperature rises. Replace the capillary The compressor does not run smoothly or is stuck. The air discharge valve is damaged The protector itself has malfunction. Replace the compressor Replace the protector The torque of the swing motor is not enough The swing fan does not run. wrong connection First, check whether the connection is wrong. If no, replace the parts The controller is damaged IC2003 is damaged, the swing relay can not close, etc 47 Troubleshooting In cool, heat mode, the outdoor unit and compressor will not run. Controller malfunction (IC200 3 b r o k e n , creepage of parallel capacitor of relay loop,relay is broken etc.) Change controller Wire loose or wrong connection Correctly wire according to the drawing Improper setting of temperature Adjust setting temp. Drainage pipe blocked or broken Change drainage pipe Wrap of refrigerant pipe joint is not close enough. Re-wrap and make it tight. Fan of indoor unit contacts other parts. Adjust fan location. Foreign object in indoor unit Take out the foreign object. Compressor shakes too much. Adjust support washer of compressor, and tighten loosen screws. Touch of pipeline of outdoor unit Separate the touching pipeline. Touch of inner plates 1. Tighten connect screw. 2. Stick absorbing clay between plates. Louver of outdoor unit touched outer case. Adjust location of louver. Abnormal sound inside compressor Change compressor Water leakage Abnormal sound and shake 48 Troubleshooting If malfunction occurs,corresponding code will display and the unit will resume normal until protection or malfunction disappears. Yellow indicator blinks for once Yellow indicator blinks for twice Yellow indicator blinks for 3 times Compressor stars (normal) Defrosting (normal display of indoor unit) Anti-freezing protection (normal display of indoor unit) Yellow indicator blinks for 4 times IPM protection Yellow indicator blinks for 5 times Overcurrent protection Yellow indicator blinks for 6 times Overload protection Yellow indicator blinks for 7 times Exhaust protection Yellow indicator blinks for 8 times Overlod protection of compresoor Indicator display of outdoor unit Red indicator blinks for once Cooling (dehumidify) or heating current dropped frequency current. Red indicator blinks for twice r Exhaust temp. Red indicator blinksfor 3 times Tube temp. Red indicator blinks for 4 times T tube-in Red indicator blinks for 5 times Outdoor condenser temp. sensor mal. Red indicator for 6 times dropped frequency temp. dropped frequency temp. dropped frequency temp. Outdoor ambient temp. sensor mal. Red indicator blinks for 7 times Outdoor exhaust temp. sensor mal. Red indicator blinks for 8 times Starting at temp. does not reach Green indicator does not blink Communication is abnormal 49 Troubleshooting Name of running status Red light Green light Indoor unit display 1 Compressor start Blink once 2 Defrosting Blink twice 3 Anti-freezing protection Blink three times E2 4 IPM protection Blink four times H5 5 Overcurrent protection Blink five times E5 6 Overload protection Blink six times H4 7 Air exhaust protection Blink seven times E4 8 Overload protection Blink eight times H3 H1 9 Limited frequency (current) Blink once 10 Limited frequency (Air exhaust) Blink twice 11 Limited frequency (overload) Blink three times 12 Limited frequency (anti-freezing) Blink four times 13 Outdoor unit ambient sensor malfunction Blink five times F3 14 Outdoor unit tube temp. sensor malfunction Blink six times F4 15 Outdoor air exhaust sensor malfunction Blink seven times F5 16 Achieve the temperature of unitstartsup Blink eight times 17 Communication is normal 18 Communication malfunction 19 Overload sensor malfunction 20 Low voltage protection Blink twelve times PL 21 High voltage protection Blink thirteen times PH 22 Indoor ambient sensor malfunction 23 Indoor tube temperature sensormalfunction F2 24 Normal cooling or norminal heating P1 25 Max. cooling or max. heating P2 26 Interim cooling or interim heating P3 27 Min. cooling or Min. heating P0 YELLOW-LED4 50 Yellow light Blink continuously OFF E6 Blink nine times H3 F1 GREEN-LED2 RED-LED3 Troubleshooting Analysis or processing of some of the malfunction display: 1. Compressor discharge protection Possible reasons: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser; the system has noncondensing gas (such as air, water etc.); blockage of capillary assy (including filter); leakage inside four-way valve causes incorrect operation; malfunction of compressor; malfunction of protection relay; malfunction of discharge sensor; outdoor temperature too high. Processing method: refer to the malfunction analysis in the above section. 2. Low voltage over current protection Possible reas on: Sudden drop of supply voltage. 3. Communication malfunction Processing method:Ch eck if communica tion signal cable is connected reliably. 4. Sensor openo rs hort circuit Processing method: Check whether sensor is normal, connected with the corresponding position on the controller and if damage lf lead wire is found. 5. Compressor overload protection Possible reasons: insufficient or too much refrigrant; blockage of capillary and increase of suction temp.; improper running of compressor, burning in or stuck of bearing, damage of discharge valve; malfunctioning of protector. Processing method: adjust refrigerant amount; replace the capillary; replace the compressor; use universal meter to check if the contactor of compressor is fine when it is not overheated, if not replace the protector. 6. System malfunction i.e.overload protection.When tube temperature (Check the temperature of outdoor heat exchanger when cooling and check the temperature of indoor heat exchanger when heating) is too high, protection will be activated. Possible reasons: Outdoor temperature is too high when cooling; insufficient outdoor air circulation; refrigerant flow malfunction. please refer to the malfunction analysis in the previous section for handling method . 7. IPM module protection Processing method:Once the module malfunction happens,if it persists for a long time and can not be self- canceled, cut off the power and turn off the unit,and then re-energize the unit again after about 10 min. After repeating the procedure for sever times, if the malfunction still exists, replace the module. 51 Troubleshooting 9.4 How to Check simply the main part Main Check Points: Units of 115V: Use AC voltmeter to check wether the voltage between terminal L and N on the wiring board is 115V AC Units of 115V: Whether the reactor ( L) is correctly connected? Whether the connection is loose or fallen? Whether the reactor (L) is damaged ? Fault diagnosis process: Switch on the unit and wait 1 minute Use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor (test3) Voltage higher than 103.5V? For 115V Units Voltage higher than 187V? For 208~230V Units N Y Fault with the voltage testing circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminal L and N on wiring board XT Voltage within 103.5~126.5V? For 115V Units N Switch off the power and repair the supply power to restore the voltage to 103.5~126.5 VVAC For 115V Units Re-energize and switch on the unit If the fault is eliminated? Y Y Switch off the power and wait 20 minutes; or use DC voltmeter to measure the voltage on the use DC voltmeter to measure the voltage on the two ends of capacitor (test3), until the voltage is lower than 20V N Check the connection of reactor (L in the Electrical Wiring Diagram) If the wiring of reactor L is normal? N Connect the reactor L according to Electrical Wiring Diagram Re-energize and switch on the unit Y Replace the control panel AP1 End 52 N If the fault is eliminated? Y Troubleshooting Mainly detect: Whether the connection between control panel AP1 and compressor COMP is secure? Whether loose? Whether the connection is in correct order? Whether the voltage input of the machine is within normal range? (Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT) Whether the compressor coil resistance is normal? Whether the insulation of compressor coil against the copper tube is in good condition? Whether the working loads of the machine are too high? Whether the radiation is good? Whether the charge volume of refrigerant is correct? 53 Troubleshooting Fault diagnosis process: Energize and switch on IPM protection occurs after the machine has run for a period of time? Y Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT) If the voltage between terminal L and N on wiring board XT is within 210VAC~250VAC? N Check the supply voltage and restore it to 210VAC~250VAC Y Start and run the unit. Before protection occurs, use DC voltmeter to measure the voltage between the two ends of electrolytic capacitor on control panel AP1 (test3) Voltage between the two ends of electrolytic capacitor (test3) is higher than 250V Y Please confirm: 1. If the indoor and outdoor heat exchangers are dirty? If they are obstructed by other objects which affect the heat exchange of indoor and outdoor unit. 2. If the indoor and outdoor fans are working normally? 3. If the environment temperature is too high, resulting in that the system pressure is too high and exceeds the permissible range? 4. If the charge volume of refrigerant is too much, resulting in that the system pressure is too high? 5. Other conditions resulting in that the system pressure becomes too high. The connection of capacitor C2 is loose. Stop the unit and disconnect the power supply. Wait 20 minutes, or use DC voltmeter to measure the voltage between the two ends of capacitor C2, until the voltage is lower than 20V If capacitor C2 is failed? Replace the capacitor C2. Then, energize and start the unit. Y Replace the control panel AP1 N If there is any abnormality described above? Y Replace the control panel AP1 Y Connect the control panel AP1 and compressor COMP correctly according to the Electrical Wiring Diagram. Then, energize and start the unit. If the resistance is normal? N If the unit can work normally? Replace the compressor COMP Resistance higher than 500MΩ? N Replace the control panel AP1 END 54 N If the unit can work normally? If the unit can work normally? Y Y N Take corrective actions according to Technical Service Manual, and then energize and start the unit. N Use ohmmeter to measure the resistance between the two terminals of compressor COMP and copper tube. Y Reconnect the capacitor C2 according to Electrical Wiring Diagram. Then, energize and start the unit. Y N Remove the wires on the two ends of capacitor C2. Then, use capacitance meter to measure the capacitor C2. Verify as per the Parameters Sheet. N Use ohmmeter to measure the resistance between the three terminals on compressor COMP, and compare the measurements with the compressor resistance on Service Manual. If the unit can work normally? N Stop the unit and disconnect the power supply. Then, check the connection of capacitor C2 according to Electrical Wiring Diagram. Refer to the Electrical Wiring Diagram and check if the connection between AP1 and COMP is loose and if the connection order is correct. If the connection between AP1 and COMP is unsecure or the connection order is wrong? N If the unit can work normally? N Y Y 55 Troubleshooting Mainly detect: Is outdoor ambient temperature in normal range? Are the outdoor and indoor fans operating normally? Is the heat dissipation environment inside and outside the unit is good? Overheat and high temperature protection Y Is outdoor ambient temperature higher than 53? Normal protection, please operate it after the outdoor ambient temperature is normalized. N 20 minutes after the complete unit is powered off. Is heat dissipation of the indoor unit and outdoor unit abnormal? Y Improve the heat dissipation environment of the unit N Does the outdoor fan work normally? N 1. Check if the fan terminal O FAN is connected correctly 2. Resistance between any two terminals is measure by an ohm gauge and should be less than 1K Ohm. Y Replace the fan capacitor C1 Replace the control panel AP1 Replace the outdoor fan End 56 Troubleshooting Mainly detect: Whether the compressor wiring is connected correct? Is time for compressor stopping enough? Is compressor broken? Power on the unit Is stop time of the compressor longer than 3 minutes? N Restart it up after 3 minutes Y Does startup fail? Y Are the wires for the compressor connected correctly? Is connection sequence right? N Connect the wires as per the connection diagram Y Replace the control panel AP1 N If the fault is eliminated? N Replace the compressor Y End 57 Troubleshooting Mainly detect: Whether the unit voltage is too high? Whether the work voltage is too low? Out of step occurs once the unit is powered on. Out of step occurs in operation Is stop time of the compressor longer than 3 minutes? Is the outdoor fan working normally? Is the outdoor unit blocked by foreign objects? Are the wires for the compressor connected correctly? Is connection sequence right? Is the connection made in clockwise direction? Replace the control panel AP1 Connect the wires correctly Replace the control panel AP1 If the fault is eliminated? If the fault is eliminated? Replace the compressor Replace the compressor End End 58 Check if the fan terminal O FAN is connected correctly Replace the fan capacitor C1 Replace the outdoor fan Remove foreign objects Troubleshooting Mainly detect: Whether the electronic expansion valve is connected well or not? Is electronic expansion valve damaged? Is refrigerant leaked? 20 minutes after the complete unit is powered off Is the terminal FA for the electronic expansion valve connected correctly? Connect the wires correctly Resistances between the first four pins close to the terminal hole and the fifth pin are almost the same, less than 100 ohm. Replace the electronic expansion valve If the fault is eliminated? Replace the control panel AP1 If the fault is eliminated? Coolant leakage, refilling the coolant End 59 Troubleshooting Mainly detect: Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken The failure diagnosis process is as follows: Start Check wiring of the reactor (L) of the outdoor unit and the PFC capacitor Whether there is any damage or short-circuit? Y Replace it as per the wiring diagram and reconnect the wires If the fault is eliminated? N Remove the PFC capacitor and measure resistance between the two terminals. Is the resistance around zero? N Y The capacitor is short circuited and the capacitor should be replaced Restart the unit If the fault is eliminated? Y N Disconnect the terminals for the reactor and measure the resistance between the two terminals of the reactor by an ohm gauge Whether there is any damage or short-circuit? N Y Replace the reactor Restart the unit If the fault is eliminated? Y N Replace the control panel AP1 N Y End 60 Troubleshooting Mainly detect: Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? The flow chart for malfunction detect: Start Y Did the equipment operate normally before the failure occurs? N Check the wiring of the indoor and outdoor units with reference to the wiring diagram Check wiring inside of the indoor and outdoor units Y Is the connection right? N N The AP1 voltage detection circuit is at fault Y Correctly connect the corresponding wires for the indoor and outdoor units with reference to the wiring diagram Are wires broken? N If the fault is eliminated? N Check the communication circuit of the outdoor unit If the fault is eliminated? The communication circuit is abnormal Y N Replace the main board ˄AP1˅of the outdoor unit If the fault is eliminated? N Replace the main board of the indoor unit Y Y End Y 61 Troubleshooting Start Measure voltage at the Test 10 position as shown in the diagram with a voltmeter Value jumping N Y Measure voltage at the Test 15 position as shown in the diagram with a voltmeter Y Value jumping N Y Fault with outdoor unit Measure voltage at the Test 11 position as shown in the diagram with a voltmeter Value jumping N Y Measure voltage at the Test 12 position as shown in the diagram with a voltmeter N Value jumping Y The communication circuit of the outdoor unit is normal 62 End Troubleshooting (9) Flow chart for outdoor communitcation circuit detecting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roubleshooting Troubleshooting Guide Appendix 1: form for indoor/outdoor unit's ambient sensor numerical value of resistance Temp. Resistance Temp. (°F) (°F) -2 0 1 3 5 7 9 10 12 14 16 18 19 21 23 25 27 28 30 32 34 36 37 39 41 43 45 46 48 50 52 54 55 57 59 61 63 64 66 68 70 72 73 75 77 79 81 82 84 86 88 90 91 93 95 97 99 100 102 104 106 108 109 111 113 115 117 118 120 122 124 126 127 130 131 133 135 136 64 Resistance Temp. (°F) 138 140 142 144 145 147 149 151 153 154 156 158 160 162 163 165 167 169 171 172 174 176 178 180 181 183 185 187 189 190 192 194 196 198 199 202 203 205 207 Resistance Temp. (°F) 208 210 212 214 216 217 219 221 223 225 226 228 230 232 234 235 237 239 241 243 244 246 248 250 252 253 255 257 259 261 262 264 266 268 270 271 273 275 277 Resistance Troubleshooting Troubleshooting Guide Appendix 2: form for indoor/outdoor unit's tube temperature sensor numerical value of resistance Temp. Resistance Temp. Resistance Temp. (°F) (°F) (°F) -2 0 1 3 5 7 9 10 12 14 16 18 19 21 23 25 27 28 30 32 34 36 37 39 41 43 45 46 48 50 52 54 55 57 59 61 63 64 66 68 70 72 73 75 77 79 81 82 84 86 88 90 91 93 95 97 99 100 102 104 106 108 109 111 113 115 117 118 120 122 124 126 127 130 131 133 135 136 138 140 142 144 145 147 149 151 153 154 156 158 160 162 163 165 167 169 171 172 174 176 178 180 181 183 185 187 189 190 192 194 196 198 199 202 203 205 207 Resistance Temp. (°F) Resistance 208 210 212 214 216 217 219 221 223 225 226 228 230 232 234 235 237 239 241 243 244 246 248 250 252 253 255 257 259 261 262 264 266 268 270 271 273 275 277 65 Troubleshooting Troubleshooting Guide Appendix 3: form for indoor/outdoor unit's air exhaust temperature sensor numerical value of resistance Temp. Resistance Temp. Resistance Temp. Resistance Temp. (°F) (°F) (°F) (°F) -2 0 1 3 5 7 9 10 12 14 16 18 19 21 23 25 27 28 30 32 34 36 37 39 41 43 45 46 48 50 52 54 55 57 59 61 63 64 66 68 70 72 73 75 77 79 81 82 84 86 88 90 91 93 95 97 99 100 102 104 106 108 109 111 113 115 117 118 120 122 124 126 127 130 131 133 135 136 138 140 142 144 145 147 149 151 153 154 156 158 160 162 163 165 167 169 171 172 174 176 178 180 181 183 185 187 189 190 192 194 196 198 199 202 203 205 207 208 210 212 214 216 217 219 221 223 225 226 228 230 232 234 235 237 239 241 243 244 246 248 250 252 253 255 257 259 261 262 264 266 268 270 271 273 275 277 66 Resistance Troubleshooting 9.5 2-way, 3-way Valve Appearance 2-way Valve (Liquid Side) Hexagonal wrench (4mm) Flare nut 3-way Valve (Gas Side) Valve cap Open position Flare nut Closed position Open position Closed position To piping connection To piping connection To outdoor unit Works Shipping 1. Air purging (Installation) Operation Pin Service Service port cap port To outdoor unit Shaft position Shaft position Service port Closed (with valve cap) Closed (with valve cap) Closed (with cap) Closed (clockwise) Closed (clockwise) Open (with vacumm pump) Open (with valve cap) Open (with valve cap) Closed (with cap) Closed (clockwise) Open Open (counter-clockwise) (connected manifold gauge) 2. Pumping down (Transfering) Evacuation (Servicing) Open Open 3. Open (with charging cylinder) Gas charging (Servicing) Open Open 4. Open (with charging cylinder) 5. Pressure check (Servicing) Open Open Open (with charging cylinder) 6. Gas releasing (Servicing) Open Open Open (with charging cylinder) 67 Troubleshooting Liquid side Indoor unit Clsed Outdoor unit 2-way valve Gas side Clsed 3-way valve Vacuum pump Lo OPEN CLOSE * Procedure (1)Connect the charge hose from the manifold valve to the service port of the gas side packed valve. (2)Connect the charge hose to the port of the vacuum pump. (3) Open fully the low pressure side handle of the gauge manifold valve. (4)Operate the vacuum pump to begin evacuating. Perform evacuating for about 15 minutes if the piping length is 20 meters (15 minutes for 20 meters) (assuming a pump capacity of 27 liters per minute). Confirm that the compound pressure gauge reading is –101 kPa (–76 cmHg). (5)Close the low pressure valve handle of gauge manifold. – Check the flare connections for gas leakage. (6)Use torque wrench to tighten the service port nut to a torque of 1.8kg.cm. (7)Set the 3-way valve to the back seat. (8)Mount the valve stem nuts to the 2-way and 3-way valves. (9)Check for gas leakage. – At this time, especially check for gas leakage from the 2-way and 3-way valve’s stem nuts, and from the service port nut. 68 CAUTION: If gas leakage are discovered in step 5 above, take the following mesures : If the gas leaks stop when the piping connections are tightened further, continue working from step 6. If the gas leaks do not stop when the connections are retightened, repair the location of the leak, discharge all of the gas through the service port, and then recharge with the specified amount of gas from a gas cylinder. Troubleshooting Liquid side Indoor unit 2-Way valve Open Outdoor unit Gas side Closed 3-Way valve Lo CLOSE CLOSE Purge the air • Procedure (1) Confirm that both the 2-way and 3-way valves are set to the open position. – Remove the valve stem caps and confirm that the valve stems (7) Immediately set the 3-way valve to the closed position. – Do this quickly so that the gauge ends up indicating 3 to 5kg/ cm2g. are in the raised position. – Be sure to use a hexagonal wrench to operate the valve stems. (8) Disconnect the charge set, and mount the 2-way and 3(2) Operate the unit for 10 to 15 minutes. way valve’s stem nuts and the service port nut. – Use torque wrench to tighten the service port nut to a torque of 1.8 kg.m. – Be sure to check for gas leakage. (3) Stop operation and wait for 3 minutes, then connect the charge set to the service port of the 3-way valve. – Connect the charge hose with the push pin to the service port. (4) Air purging of the charge hose. – Open the low-pressure valve on the charge set slightly to air purge from the charge hose. (5) Set the 2-way valve to the closed position. (6) Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg/cm2g. 69 Troubleshooting Liquid side Indoor unit 3-Way valve Closed Outdoor unit Gas side Closed 3-Way valve Gas cylinder Lo R410A OPEN CLOSE • Procedure (1) Confirm that both the liquid side valve and the gas side valve are set to the closed position. (6) Disconnect the charge set and the gas cylinder, and set the Liquid side and Gas side valves to the open position. – Be sure to use a hexagonal wrench to operate the valve stems. (2) Connect the charge set and a gas cylinder to the service port of the Gas side valve. – Leave the valve on the gas cylinder closed. (8) Mount the valve stem nuts and the service port nut. – Use torque wrench to tighten the service port nut to a torque of 1.8 kg.m. – Be sure to check for gas leakage. (3) Air purging. – Open the valves on the gas cylinder and the charge set. Purge the air by loosening the flare nut on the liquid side valve approximately 45o or 3 seconds then closing it for 1 minute;repeat 3 times. – After purging the air, use a torque wrench to tighten the flare nut on liquid side valve. (4) Check for gas leakage. – Check the flare connections for gas leakage. (5) Discharge the refrigerant. – Close the valve on the gas cylinder and discharge the refrigerant until the gauge indicates 3 to 5 kg/cm2g. 70 CAUTION: Do not leak the gas in the air during Air Purging. Troubleshooting Balance Refrigerant of the 3-way Valve (Gas leakage) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open Lo OPEN CLOSE • Procedure (1) Confirm that both the 2-way and 3-way valves are set to the back seat. (2) Connect the charge set to the 3-way valve’s port. – Leave the valve on the charge set closed. – Connect the charge hose to the service port. (3) Open the valve (Lo side) on the charge set and discharge the refrigerant until the gauge indicates 0 kg/cm2G. – If there is no air in the refrigerant cycle (the pressure when the air conditioner is not running is higher than 1 kg/cm2G), discharge the refrigerant until the gauge indicates 0.5 to 1 kg/cm2G. if this is the case, it will not be necessary to apply a evacuatin. – Discharge the refrigerant gradually; if it is discharged too suddenly, the refrigeration oil will also be discharged. 71 Troubleshooting Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open Vacuum pump Lo OPEN CLOSE • Procedure (1) Connect the vacuum pump to the center hose of charge set center hose (2) Evacuation for approximately one hour. – Confirm that the gauge needle has moved toward -76 cmHg (vacuum of 4 mmHg or less). (3) Close the valve (Lo side) on the charge set, turn off the vacuum pump, and confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump). (4) Disconnect the charge hose from the vacuum pump. – Vacuum pump oil. If the vacuum pump oil becomes dirty or depleted, replenish as needed. 72 Troubleshooting Gas Charging (After Evacuation) Liquid side Indoor unit 3-Way valve Open Outdoor unit Gas side Open 3-Way valve Check valve Charging cylinder Lo (1) OPEN CLOSE • Procedure \ (1) Connect the charge hose to the charging cylinder. – Connect the charge hose which you dis-connected from the vacuum pump to the valve at the bottom of the cylinder. – If you are using a gas cylinder, also use a scale and reverse the cylinder so that the system can be charged with liquid. (2) Purge the air from the charge hose. – Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air. (Be careful of the liquid refrigerant). The procedure is the same if using a gas cylinder. (3) Open the valve (Lo side on the charge set and charge the system with liquid refrigerant. – If the system can not be charged with the specified amount of refrigerant, it can be charged with a little at a time (approximately 150g each time) while operating the air conditioner in the cooling cycle; however, one time is not sufficient, wait approximately 1 minute and then repeat the procedure (pumping down-pin). This is different from previous procedures. Because you are charging with liquid refrigerant from the gas side, absolutely do not attempt to charge with larger amounts of liquid refrigerant while operating the air conditioner. (4) Immediately disconnect the charge hose from the 3-way valve’s service port. – Stopping partway will allow the gas to be discharged. – If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose. (5) Mount the valve stem nuts and the service port nut. – Use torque wrench to tighten the service port nut to a torque of 1.8 kg.m. – Be sure to check for gas leakage. 73 Removal Procedure 10. Removal Procedure 10.1 Removal Procedure of Indoor Unit Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Image shown here is indicative only. Actual product you receive may differ. front panel 1. Remove front panel Open the front panel and slightly pull it to remove it. filter 2. Remove guide louver Push out the shaft sleeve and slightly bend the guide louver to remove it. guide louver 3. Remove electirc box cover Unscrew the screw fixing the electric box cover to remove it. screw 74 Removal Procedure clasps temp. sensor 4. Remove front case Unscrew the 6 tapping screws fixng the front panel and turn the front case backward to remove it. screws clasps 5. Remove electric box Unscrew the 2 screws fixing the electric box Pull out the wiring terminal of motor and then un- screw screw the 3 screws fixing electric box.Lift the electric box to remove it. 6. Remove evaporator Unscrew the screws on the rear pipe cardplate and then remove the cardplate. screw clasp 75 Removal Procedure screws 7. Remove motor and cross flow fan Unscrew the screws fixing the motor press plate of motor and then the screws connecting the motor and cross flow fan to separate and remove them. screws screw 76 Removal Procedure 10.2 Removal Procedure of Outdoor Unit Cable Cross Plate sub-assy 1. Remove top cover and the Cable Cross Plate subassy Unscrew the screw on the handle and pull the Cable Cross Plate sub-assy forcibly downwards to re- top cover move it. Unscrew the 3 screws fixing the top cover to remove it. screws 2. Remove cabinet screws Unscrew the 4 screws fixing the cabinet to remove it. cabinet 3. Remove front panel Unscrew the 5 screws fixing the front panel and pull out the front panel to remove it. (If it's 108-230V, there are 6 screws need to be unscrewed because there are one more power transformer.) front panel screws 77 Removal Procedure 4. Remove electric box cover Unscrew the 2 screws fixing the electiric box. Pull theelectric box upwards and unplug the plug-in line to remove the electric box. screws 5. Remove axial flow fan Unscrew the nut and remove the washer fixing the axial flow fan and then pull it out. nut and washer axial flow fan 6.Remove 4-way valve Wrap the 4-way valve with wet cloth and unsolder the 4 weld spots of the 4-way valve to remove it. 4-way valve weld spots 78 Removal Procedure 7. Remove electronic expannsion valve Unsolder the weld spots of eletronic expansion valve connecting with other pipelines to remove it. electronic expannsion valve 8. Remove gas valve and liquid valve Unscrew the 2 screws fixing the gas valve and unsolder the weld spots of gas valve and suction pipe to remove the gas valve. Unscrew the 2 screws fixing the liquid valve and liquid valve screws unsolder the weld spots of liquid valve and suction pipe to remove the liquid valve. gas valve 9 . Remove compressor Unsolder the 2 weld spots of the compressor and unscrew the 3 feet nuts and remove the washeres fixing the compressor to remove it. compressor foot 79 SPLIT TYPE ROOM AIR CONDITIONER - WALL MOUNTED SYSTEM COMPONENTS 27 25 40 1 41 2 3 5 39 4 38 6 7 13 8 37 9 14 12 36 10 15 35 29 34 33 32 16 31 11 30 28 17 18 24 22 26 19 23 21 20 MW09C1H / MW12C1H Exploded Diagram 80 MW09C1H Parts List NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 FPN 69700100 69700101 69700102 69700103 69700104 69700105 69700106 69700107 69700108 69700109 69700110 69700111 69700112 69700113 69700114 69700115 69700116 69700117 69700118 69700119 69700120 69700121 69700122 69700123 69700124 69700125 69700126 69700127 69700128 69700129 69700130 69700131 69700132 69700133 69700134 69700135 69700136 69700137 69700138 69700139 69700140 Part Description Filter Sub-Assy Front Case Sub-Assy Front Case Evaporator Assy Evaporator Support Guide Louver Axile Bush (guide louver) Rear Grill Helicoid tongue Air Louver 2 Air Louver 1 Left Axile Bush Bearing cushion rubber base O-Gasket sub-assy of Bearing Cross Flow Fan Water Tray Glue Plug Wall Mounting Frame MotorPressPlate Pipe Clamp Drainage Pipe Cable Cross Plate Rear Case assy Fan Motor Motor MP24AA Crank Display Board Ambient Temperature Sensor Transformer Electric Box Assy Electric Box 4-bit Terminal Board Main Board Jumping Connector Tube Sensor (20K black) Electric Box Cover1 Shield cover of Electric Box sub-assy Remote Control Electric Box Cover2 Screw Cover Front panel D1 Front Panel Sub-Assy 81 MW12C1H Parts List 82 NO. 1 2 3 4 5 6 7 FPN 69700100 69700141 69700142 69700103 69700104 69700105 69700106 Part Description Filter Sub-Assy Front Case Sub-Assy Front Case Evaporator Assy Evaporator Support Guide Louver Axile Bush (guide louver) 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 69700108 69700109 69700110 69700111 69700112 69700113 69700114 69700115 69700116 69700117 69700118 69700119 69700120 69700121 69700122 69700123 69700124 69700125 69700126 69700127 69700143 69700129 69700130 69700131 69700144 69700133 69700134 69700135 69700145 69700137 69700138 69700139 69700140 Helicoid tongue Air Louver 2 Air Louver 1 Left Axile Bush Bearing cushion rubber base O-Gasket sub-assy of Bearing Cross Flow Fan Water Tray Glue Plug Wall Mounting Frame MotorPressPlate Pipe Clamp Drainage Pipe Cable Cross Plate Rear Case assy Fan Motor Motor MP24AA Crank Display Board Ambient Temperature Sensor Transformer Electric Box Assy Electric Box 4-bit Terminal Board Main Board Jumping Connector Tube Sensor (20K black) Electric Box Cover1 Shield cover of Electric Box sub-assy Remote Controller Electric Box Cover2 Screw Cover Front panel D1 Front Panel Sub-Assy SPLIT TYPE ROOM AIR CONDITIONER - WALL MOUNTED SYSTEM COMPONENTS 10 11 12 13 14 1 31 30 29 28 3 2 4 5 27 25 6 26 21 7 8 20 24 19 9 16 15 17 18 22 23 MR09C1H Exploded Diagram 83 MR09C1H Parts List NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 84 FPN 69700000 69700001 69700002 69700003 69700004 69700005 69700006 69700007 69700008 69700009 69700010 69700011 69700012 69700013 69700014 69700015 69700016 69700017 69700018 69700019 69700020 69700021 69700022 69700023 69700024 69700025 69700026 69700027 69700028 69700029 69700030 Part Description Mesh Enclosure Cabinet Axial-flow Fan Motor FW30G-ZL Reactor Support Assy Choke Plug Compressor Gasket Compressor C-6RZ110H1A Electric Expansion Valve Sub-Assy Cut-off Valve (1/4) Cut-off Valve (3/8) Valve Support Cable Cross Plate Assy Right Side Plate Assy Wire cover Magnet Coil Temperature Sensor for Discharge Gas Tube Sensor (20K black) Discharge Tube Inhalation Tube Overload Protector Sensor Rear Grill Condenser Assy Clapboard Sub-Assy Top Cover Plate Motor suport spot welding sub-assy Electric box cover sub-assy Main Board Electric Box Assy Terminal Board SPLIT TYPE ROOM AIR CONDITIONER - WALL MOUNTED SYSTEM COMPONENTS 3 6 1 5 7 4 9 2 8 10 25 13 24 15 26 23 22 16 21 12 11 20 14 19 17 27 18 MR12C1H Exploded View 85 MR12C1H Parts List NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 86 FPN 69700000 69700031 69700002 69700003 69700017 69700016 69700021 69700032 69700033 69700019 69700025 69700034 69700035 69700015 69700036 69700011 69700027 69700029 69700020 69700006 69700037 69700010 69700009 69700007 69700038 69700039 69700028 Part Description Mesh Enclosure Front Panel Axial-flow Fan Motor FW30G-ZL Tube Sensor (20K black) Temperature Sensor for Discharge Gas Sensor Motor suport spot welding sub-assy Condenser Assy Inhalation Tube Top Cover Plate Rear Grill Discharge Tube Magnet Coil Right Side Plate Valve Support Electric box cover sub-assy Electric Box Assy Overload Protector Compressor Gasket Drainage Plug Cut-off Valve (3/8) Cut-off Valve (1/4) Compressor C-6RZ110H1A Clapboard Sub-Assy Chassis Sub-assy Main Board FRIEDRICH AIR CONDITIONING CO. 10001 Reunion Place, Ste. 500, San Antonio, TX 78216 (210) 546-0500 877-599-5665 x 261 FAX (210) 546-0630 Email: firstname.lastname@example.org www.friedrich.com Printed in the U.S.A.