Download Chigo CS-25C3A-V85AY1 Service manual
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Service manual Room airconditioner Split Wall-Mounted Type NOTE: Before servicing the unit, please read this first Always contact with your service center if meet problem. 1 Table of Contents 1、Summary ………………………………………………………………………………………………………………3 2、Model explaining …………………………………………………………………………………………………….4 3、Installation……………………………………………………………………………………………………………..4 4、Exploded view and part list………………………………………………………………………………………..8 5、Operation principle………………………………………………………………………………………………….9 6、Specifications…………………………………………………………………………………………………………10 7、Wiring diagrams……………………………………………………………………………………………………...11 8、PCB principle chart……………………………………………………………………………………………….....16 9、PCB function …………………………………………………………………………………......17 10、Troubleshooting………………………………………………………………………………....33 2 1. Summary 1.1 indoor unit Model 38B model 85 1.2 outdoor unit 9000BTU 12000~18000 BTU 22000 BTU 24000~26000 BTU 3 2、Model explaining c Improve an ordinal number Divide the body outdoors box a body code External appearance characteristic code Separately the body indoor machine(or whole type) style code Separately the body pit code inside the indoor machine(or whole type) Code of refrigerant type:no code - R22;C-R407c、A-R410a Power type:1:115v/60Hz 2:220V/60Hz;3:220-240V/ 50Hz;4:240V/50Hz; Main function code: c-Cold breeze type;H-Hot pump type;A-Hot pump the type take assistance electricity to heat;E-The electricity heat Capacity code: x1000W Structure form code Special craft code:Q-Deal with contact quickly;S-Soft start;dOutside tube in addition to frost The weather type code(T1 type code abridge) "C" CHIGO brand Such as: CS-25C3A-V85AY1 T1 climate type,wall split type air conditioner, cooling capacity is 2500W,power is 220V~/50Hz/1PH, refrigeration is R410A,the kernel of indoor unit is fresh 98,the pattern no. is 85,first time design, outdoor unit is 1HP of 2003 year。 Indoor unit modle is:CS-25C3A-V85A,outdoor unit model is:CS-25C3A-Y1。 4 3. Attention of installation 3.1 Safety Precaution ■To prevent injury to the user or other people and property damage, the following instructions must be followed. ■Incorrect operation due to ignoring instruction will cause harm or damage. ■Before service unit, be sure to read this service manual at first. 3.2 Warning ﹥Installation ■Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit. There is risk of fire or electric shock. ■For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized service center. Do not disassemble or repair the product, there is risk of fire or electric shock. ■Always ground the product. There is risk of fire or electric shock. ■Install the panel and the cover of control box securely. There is risk of fire of electric shock. ■Always install a dedicated circuit and breaker. Improper wiring or installation may cause fore or electric shock. ■Use the correctly rated breaker of fuse. There is risk of fire or electric shock. ■Do not modify or extend the power cable. There is risk of fire or electric shock. ■Do not install, remove, or reinstall the unit by yourself (customer). There is risk of fire, electric shock, explosion, or injury. ■Be caution when unpacking and installing the product. Sharp edges could cause injury, be especially careful of the case edges and the fins on the condenser and evaporator. ■ For installation, always contact the dealer or an Authorized service center. There is risk of fire, electric shock, explosion, or injury. ■Do not install the product on a defective installation stand. It may cause injury, accident, or damage to the product. 5 ■Be sure the installation area does not deteriorate with age. If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury. ■Do not let the air conditioner run for a long time when the humidity is very high and a door or a windows is left open. Moisture may condense and wet or damage furniture. ■Take care to ensure that power cable could not be pulled out or damaged during operation. There is risk of fire or electric shock. ■ Do not place anything on the power cable. There is risk of fire or electric shock. ■Do not plug or unplug the power supply plug during operation. There is risk of fire or electric shock. ■Do not touch (operation) the product with wet hands. There is risk of fire or electric shock. ■Do not place a heater or other appliance near the power cable. There is risk of fire and electric shock. ■Do not allow water to run into electric parts. It may cause fire, failure of the product, or electric shock. ■Do not store or use flammable gas or combustible near the product. There is risk of fire or failure of product. ■ Do not use the product in a tightly closed space for a long time. Oxygen deficiency could occur. ■When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on. Do not use the telephone or turn switches on or off. There is risk of explosion or fire. ■If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire. ■Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives. There is risk of property damage, failure of product, or electric shock. ■Do not open the inlet grill of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure. ■When the product is soaked (flooded or submerged), contact an Authorized service center. There is risk of fire or electric shock. ■Be caution that water could not enter the product. 6 There is risk of fire, electric shock, or product damage. ■Ventilate the product from time to time when operating it together with a stove, etc. There is risk of fire or electric shock. ■Turn the main power off when cleaning or maintaining the product. There is risk of electric shock. ■When the product is not be used for a long time, disconnect the power supply plug or turn off the breaker. There is risk of product damage or failure, or unintended operation. ■Take care to ensure that nobody could step on or fall onto the outdoor unit. This could result in personal injury and product damage. ﹥CAUTION ■Always check for gas (refrigerant) leakage after installation or repair of product. Low refrigerant levels may cause failure of product. ■Install the drain hose to ensure that water is drained away properly. A bad connection may cause water leakage. ■Keep level even when installing the product. To avoid vibration of water leakage. ■Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. It may cause a problem for your neighbors. ■Use two or more people to lift and transport the product. Avoid personal injury. ■Do not install the product where it will be exposed to sea wind (salt spray) directly. It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation. ﹥Operational ■Do not expose the skin directly to cool air for long periods of time. (Do not sit in the draft). This could harm to your health. ■ Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigerant system. There is risk of damage or loss of property. ■ Do not block the inlet or outlet of air flow. It may cause product failure. 7 ■Use a soft cloth to clean. Do not use harsh detergents, solvents, etc. There is risk of fire, electric shock, or damage to the plastic parts of the product. ■ Do not touch the metal parts of the product when removing the air filter. They are very sharp. There is risk of personal injury. ■ Do not step on pr put anything on the product. (outdoor units) There is risk of personal injury and failure of product. ■Always insert the filter securely. Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage. ■Do not insert hands or other object through air inlet or outlet while the product is operated. There are sharp and moving parts that could cause personal injury. ■ Do not drink the water drained from the product. It is not sanitary could cause serious health issues. ■Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury. ■Replace the all batteries in the remote control with new ones of the same type. Do not mix old and mew batteries or different types of batteries. There is risk of fire or explosion. ■ Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire. They may burn of explode. ■ If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote of the batteries have leaked. The chemical in batteries could cause burns or other health hazards. 3.3 Installation details ■ Wrench torque sheet for installation Outside diameter Torque mm inch Kg.m φ6.35 1/4 1.8 φ9.52 3/8 4.2 φ12.7 1/2 5.5 φ15.88 5/8 6.6 φ19.05 3/4 6.6 8 ■Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit 7K 9K 12K 18K 24K 28K mm2 1.0 1.0 1.5 2.5 2.5 2.5 ■ Pipe length and the elevation Standard length Capacity Max. Max. Additional Elevation Elevation refrigerant B (m) A (m) (g/m) Pipe size (m) Btu/h GAS LIQUID 9K-12K 3/8’’ (φ9.52) 1/4’’ (φ6.35) 3.5 5 10 30 18K-22K 1/2’’ (φ12.7) 1/4’’ (φ6.35) 4 10 15 30 24K-28K 5/8’’ (φ15.88) 3/8’’ (φ9.52) 5 15 20 65 Caution:Capacity is base on standard length and maximum allowance length is base of reliability.Oil trap should be install per 5-7 meters. 4、Indoor unit and outdoor unit explosion diagram and spare parts list(see explosion diagram file) 5. Refrigerant cycle diagram 5.1 Cooling only 9 5.2 Heat pump mode 6. Specifications (see spec sheet) 10 7.Wiring diagrams 7.1Indoor unit 11 12 13 14 7.2 Outdoor unit 15 8.PCB principle chart 8.1、38 section of crystal color ordinary schematic diagram 3 4 B E1 C13 10 4 8 P07 30 20 X3A 13 4 P32 GND P33 C15 10 2 HSTP.0 B 16 电加热 26 P12 D11 GND 41 48 外风 机 X4A FM O 15 外风 机 2 52 X4B P11 Q 5 制热 5 DATA GND 4 D7 41 48 IC1 R8 4. 7 K R9 4. 7 K 74 AL S1 64 电 加 热 /无 HSTP.1 32 R13 IN41 48 18 15 4. 7 K 4. 7 K R7 B L1 C24 U2 GND GND 8 R6 4. 7 K P00 +5 2 Q7 18 15 GND 13 P34 1 XL 8. 0 0 R20 4. 3 K C8 10 4 GND GND 3 R17 51 0 P20/AN0 R18 4. 3 k Vss C6 10 4 15 3 4. 7 K R22 GND P14 R21 C18 10 1 14 10 K 4. 7 K GND C10 10 2 +5 GND INT0 16 R4 10 K 10 K 产品 名称 AC..ZERO R2 设 计 绘 图 5 GND GND 6 8.2、65 Mitsubishi main chip schematic diagram 16 22 UF/1 6V (37544)38款晶彩普通电 控 原 理 图 审 A 核 姚贤 清 批 准 杜娟 日 期 4. 7 K 标准 化 Q1 C18 15 10 2 4 E1 1 GND 10 2 C5 HS 0 0 3 8 R1 51 GND C11 GND 3 GND C19 10 4 R3 22 GND 3 2 1 2 GND CNW R5 4. 7 K 4 GND 2 +5 风机 反馈 5 P37 GND B LED DPY-8 *2 dp RMT S 1 GN D 3 +5 V CNTR0 Xin f b c d S 3 R24 10 K R23 P30 2 CN D +5 +5V 30 0K Tp 管 GND 11 R15 P21/AN1 GND GND 10 uf/1 6F 4. 7 K C12 10 2 51 0 CO M2 GND -+ R19 a a g e 10 4 GND 17 Xout GND h f dp 接收头 R35 12 +5 g b c d 21 C14 10 2 /RESET g e E5 51 0 R38 10 K 7 10 SW 1 GND b a 2 Vcc C4 R16 10 K GND R25 R39 10 K c f 6 应急 键 d R31 4. 7 K Q8 9012 2 e COM2 P22 +5 E8 1u F/5 0V C7 10 4 6 1 MC3 02 1 C9 10 4 23 com2 R37 33 0 R34 2K 4 CO M3 com1 4 +5 1 6 Q5 90 12 R11 P24 L E D5 R30 4. 7 K R14 39 0 IC5 3 CNG TEMP 3 D2 L E D3 4. 7 K 3 2 BCR R36 22 0 +5 10 2 +5 IC6 L E D4 L E D7 COM3 3 1 D1 4. 7 K 2 C20 47 3/2 75 V L E D6 4. 7 K Q6 90 12 R12 P25 24 1 N 改为 跳 线 , 保 留 孔 位 CFI 1. 2 uF 1 9 BUZZ P01 1 R32 S C23 10 4/2 75 V L E D2 CO M1 L E D1 COM1 +5 Q2 2K CNU Q4 90 12 P02 25 90 13 GND R5 8 D6 R33 +5 4. 7 K 52 CB Q3 R6 压机 BZ 41 48 D8 R10 GND C R9 D10 41 48 41 48 R2 D12 8 7 P23 R8 P13 51 0* 8 R4 2 +5 TYPE1.1 dhon/off 31 14 41 48 R3 P10 3 52 X5B JZC-7F*2 Tr 室 102 +5 TYPE1.0 heat/cool D9 Q 3 通风 102 R7 14 换向阀 A 51 C16 10 2 FM C B R26 CLOCK 3 1 51 单 冷 / 双温 P03 1 52 X6B R27 C2 9 4 19 P31 C3 8 29 C28 10 2 Q7 P06 Q 4 除湿 DA T A 7 5 Q 2 制冷 CL OC K MR 28 5 Q6 12 3 步进电机 5 4 GND Q 5 CL K CN M U1 C AT 2 4 C0 2 4 13 P05 6 18 20 S 7 R28 4. 7 K D Q 7经 济 F R11 10 K 12 11 电加热 四通阀 3 5 R12 10 K R29 4. 7 K 2 52 X6A 6 CN1 1 +5 27 IC7 Q 1强 力 D Vss P04 7 GND CN 2 MC2 00 3 10 1 10 4 1 A Q 0 定时 E Q4 9 C17 火线 七灯显 示 板 Q 6 运行 GND +5 11 52 C-1A 配灵通3号遥控器 22 0UF/16V +5 E4 22 UF/2 5F 2 CN 10 00 UF/35 V JS2-B38aC-M15A/0 E3 C3 10 4 A COM CM +5 3 OUT CN4T B 5 压机 Vin C2 10 4 B U2 JL C03 01 IN40 01 变压器 L2 U1 变压初级 火线 由 压 机 的 COM 端进 入 E2 C1 10 4 22 0UF/35V Q3 1 0A FUSE F3 A 25 0V 1 D5 Q2 火线 51 /1W D1-D4 C22 10 4/2 75 Q1 47 1 U D R1 AC.ZERO T JL C03 01 C21 10 4/2 75 V 6 10 L3 ZR 8 编号 5 零线 7 78 05 Q0 N 6 IC4 4 CNB N1 5 变 压 器 次级 G ND 2 2 1 佛山市中格威电 7 子有限公 司 8 2 3 FU S E 火线 4 5 L1 FU S E +ZR 6 B 1 0 A- 1 8 0 - 6 2 1 R1 1 T1 CNC 8 编号 +5 Vin 51 /2W CNB 2 5 0 V/3 .1 5 A 7 IC 6 7805 3 Vout G ND 1 JS2-B65aC-M11A/0 E1 D1 -D 4 D 5 2 CB 1 10 低风 CN U 7 8 C2 2 1 0 0 /1 W P3 0 E3 1 0 0 UF/2 5 V GND 11 0 .1 u f/27 5 V IC 2 F 18 6 CFO 4 高风 电 容 3 .5 UF/50 0 V 低风 X3 B 中风 X4 B 高风 X5 B IC 2 E 12 P3 1 19 5 X2 A P0 3 4 20 IC 3 2003 1 4. 7 K R13 26 10 3 C10 P3 3 16 IN 2 OUT 2 15 3 IN 3 OUT 3 14 4 IN 4 OUT 4 13 5 IN 5 OUT 5 12 6 IN 6 OUT 6 11 7 IN 7 OUT 7 10 8 COMCLAMP 9 X1 A 外风 IC 2 C X2 B 机 FMO 2 14 换向 阀 X1 B 20S 5 2 X6 A R1 6 9 NC 1 E1 0 DA 2 IN 4 1 4 8 DA 3 IN 4 1 4 8 DA 4 IN 4 1 4 8 DA 5 IN 4 1 4 8 DA 6 IN 4 1 4 8 * R1 0 R8 4 .7 K 4 .7 K R1 1 R9 4 .7 K 1 P1 0 4 .7 K R7 +5 GND R6 10K P 11 3 4 .7 K A 单冷 有 室外传感器化霜 双温 双温有电加热 外板化霜 数码管显示 DA 3 DA 4 AR 5 39 0Ω R5 R4 6 4. 7 K 4. 7 K 7 R28 R29 8 IC 8 +5V GND COM 1 P2 3 / AN3 C7 10 2 90 12 COM 2 COM 1 P2 1 Q4 COM 2 GND1 0 0 UF/2 5 V 30 Vs s P0 7 C1 9 104 SW1 GND AR 5 金膜 E 10 22 UF/2 5V (37544)诚 丰 65款主控/ 电 源板 原 理 图 产品 名称 可调 电 阻 GND C2 0 104 GND GND 16 Vr e f 1 0 4. 7 K 10 2 C9 90 12 C22 10 4 设 计 张建 绘 图 范丽英 4 批 准 日 期 佛山市中格威电 GND 3 5 A 核 审 标准 化 M3 7 5 4 4 G2 ASP +5 CN1 2 GND R2 R2 4 10K GND E8 1 0 0 u f/25 V 10 2 C8 FE E D 外反 馈 7 13 Vc c 5 B 化霜 R2 3 +5 C4 +5 90 12 E4 1 R2 5 4 .7 k R12GND +5V A0 * Q3 C6 102 A1 VCC 1 0 0 u f/25 V 1 0* 4 P2 0 4. 7 K DATA WP 2 2 4 C0 2 R M T _IN CLK 4 GND 3 SCL 4 DE FR OS T E R 2 0 0 K/2 W D6 IN 4 0 0 7 C1 8 A2 SDA GND E5 R3 4. 7 K +5V COM 3 1 5 31 Q2 39 0Ω 双温无电加热 智能化霜 灯板显示 化霜参数调节(请参看说明书) DA 2 P1 4 32 103 +5V C5 102 P 10 GND DA 1 P1 1 P1 3 L R2 2 2 0 0 K/2 W D5 IN 4 0 0 7 IC 5 +5 P1 2 2 GND 104 AA 25 v GND 10K R2 6 4 .7 K T YPE _ IN2 104 IC 4 R2 1 P0 6 2 9 金膜 C1 7 103 RE SE T T YPE _ IN1 C2 3 E7 1 0 UF GND 10K R2 7 TR t。 室温 +5V 4 .7 K R3 1 5 1 0 Ω 10K GND 无 无 P2 2 / AN2 6 11 R3 4 R3 2 10K P20 B DA 1 IN 4 1 4 8 金膜 R1 9 4 .3 K C2 1 C1 6 104 R20 Q1 90 12 CN1 2 0 P21 R3 5 4 .7 K t。 TP 管温 GND 4 .7 K GND AA 4 .7 u F/5 0 v DA 5 R1 8 C1 5 104 R3 3 2K 8 P07 CN G1 R1 7 4 .3 K C1 4 104 8 P0 0 CO M 5 2 CA 二极管 P2 4 / AN4 23 +5 C 104 +5 4 .7 K C1 3 104 GND 7 16 压机 GND C2 4 P3 7 IC 2 A 5 2 X6 B 电 加 热 R3 6 4 .3 K GND 22 2 +5 BZ R14 C1 2 1 0 4 GND P2 5 / AN5 6 15 电加 热 B CN M2 2 2 UF/25 V P3 4 IC 2 B 换 向 阀 CNG2 CN M1 E6 R3 7 4 .7 K * 21 3 T P2 管温 2 2K CNVs s 1 2 GND C +12 IN 1 OUT 1 2 P3 2 IC 2 D 3 13 外风 机 步 进 电 机 GND P0 5 2 8 27 P0 4 25 P0 2 24 P0 1 X5 A 电 容 R3 0 3 0 0 K XL 1 8M 15 Xo ut 6 中风 零线 17 C3 104 X4 A R2 5 14 Xi n B CN 负离 子 GND I C1 IC 2 G X3 A 火线 t。 B 2003 CN 1 S2 4 7 0 u F/3 5 V 金膜 0 .1 UF/27 5 V 零线 C2 104 2 2 0 UF/2 5 V 40 07 9 D E2 2 C1 104 C2 1 S1 6 子有限公 司 7 8 8.3、85 section of schematic diagrams 1 2 3 零线 1 2 4 3 变压 器 初 1 E1 10 00 UF/35 V IN 4 0 0 7 D1 --D 4 次级 级 4 7 3 / 2 75 V 2K C1 9 净化 R2 CNL C30 10 4 E9 22 UF/1 6V GND X1A 换向 阀 CNG T MP86 F80 9NG 30 CLAMPCOM 8 OUT 7 IN 7 7 11 OUT 6 IN 6 6 12 OUT 5 IN 5 5 15 13 4 16 OUT 4 IN 4 IW U1 B E2 22 0UF/25V GND C32 31 10 2 R47 4. 7 k R27 10 K X2A 电加 热 5 2 X4 A F MO 外风 机 +5V 压机 L3 C3 N1 IC4 CF I 1 . 2 UF / 4 5 0 VAC MF1 1 R1 220 内风 机 4 1 6 2 BT 13 1 IW 24 C20 C21 104 104 VD D 5 IC2 14 3 18 OUT 3 IN 3 15 2 25 OUT 2 IN 2 R3 0 10 4 4 .3 K 4 .3 K 10 4 C16 16 OUT 1 IN 1 GND R32 P1 1 R25 4. 7 k +5 7 10 2 19 C24 10 2 R9 20 GND 21 C9 10 2 10 4 R19 GND 5 +5 10 2 10 2 10 2 11 C33 12 CNE 10 4 R14 E9 C22 +5 +5 4 IC5 24 C02 8 A1 WP 7 SCL 6 A2 10 2 C29 GND SDA 4148 4148 D9 GND D7 4148 4148 GND R11 +5 GND GND R6 1 2 +5V 管温2 B 强制 按键 GND 5 R7 GND C8 10 2 1 6 VC C 1 0 S CL R 9 Q H* 51 R5 4. 7 K C10 10 2 G ND GND +5 CL OC K1 4 S I DA T A 1 1 S CK 13 G 8 GN D E5 QH 7 QG 6 QF 5 QE 4 QD 3 QC 2 QB 1 Q A 15 G ND 4 7 UF/25 V M7 4 H5 9 5 3 4. 7k 10 4 IC16 16 15 14 13 12 11 10 9 IN 1OUT 1 IN 2OUT 2 IN 3OUT 3 IN 4OUT 4 IN 5OUT 5 IN 6OUT 6 IN 7OUT 7 COM CLAMP SW1 C7 10 2 GND GND GND +5 RC K +5 1 2 3 4 5 6 7 8 20 03 IC 1 3 12 51 Q1 90 13 2 10 K R41 R38 R35 R34 R4 4. 7 K R12 4. 7 k* 2 C6 B R39 R40 R37 R36 4148 10 2 A 1 R1 3 10k R2 4 4. 7 K R4 5 +5 VCC 4148 D1 1 C28 4 .7 k +5V A0 D8 D1 0 R2 9 4 .3 K 10 4 C18 10 4 10 k* 5 R4 4 4 .7 k 1 0 0 uF/ 2 5 V E6 D1 2 +5 22 UF/1 6V 3 R17 R16 CNP +5V GND GND 2 9 13 10 4 GND 1 R15 R18 GND R28 10 K 32 1 C36 E 7 4 .7 UF/50 V RE S E T 8 10 C11 IN 4 1 4 8 D6 28 R23 C12 GND GND R4 3 10K R22 4 2 +5 2 29 22 0* 3 6 B XI N XL C14 10 2 Z R8 4. 7 K 10 3 RX 8M 30 0K 26 22 0 R20 C37 10 K C27 XO UT 3 27 C GND Q2 18 15 C26 10 2 R21 22 0 C13 GND GND R42 10 K P1 0 2 2 C34 1 C15 10 2 R10 4. 7 K +5 2 10 2 GND CNM 3 10 k GND 23 14 1 +5 GND C19 E 3 1 0 0 UF/2 5 V GND +5 10 0UF/25V TE ST 4 GND 4 7 3 / 2 75 V 3 +5V R3 1 C17 E8 C31 10 4 6 R4 6 390 C3 5 52 CA B R3 330 1 0 4 / 2 75 V 5 C 52 X6A U1 X5B 室温 17 P1 2 VS S 1 FMC 管温 R26 10 K GND GND H F 2 16 0-1A -1 2D E 外风 机 220 5 2 X5 A 20S JS2-B85aC-T01A/0 3 20 03 IC14 10 电加 热 四通阀 OUT IC1 R3 3 U COM B Vin C25 10 4 10 4 C23 B BZ COM B 9 5 3 -1 A 5 2 X6 HE AT NO X 5B CN A U 火线 X5A 5 2 C (12 V ) NO 8 编号 D 负离子 CM 7 +5 7805 U1 S1 压机 6 IC 5 IN 4 0 0 7 10 4/2 75 V 10 4/2 75 V EF - 1 0 05 GS1 2 1 CN C T RANS C2 C1 S B D5 G ND ZR CN1 5 Z CN B L FUSE D 4 U1 62 1-1 0-12 6 2 3. 1 5A 2 50V 火线 U 1 2 3 4 5 6 7 8 IC15 20 03 IN 1OUT 1 IN 2OUT 2 IN 3OUT 3 IN 4OUT 4 IN 5OUT 5 IN 6OUT 6 IN 7OUT 7 COM CLAMP 16 15 14 13 12 11 10 9 CNM2 B E4 CNM1 B CNM 产品 名称 M70 内核东 芝 809 芯片85款(简易 三 灯 ) 电 控 原理 图 计 审 绘 图 批 准 B 日 期 标准 化 B 1 0 0 UF/2 5 V C5 GND 4 10 4 佛山市中格威电 5 6 A 核 设 7 子有限公 司 8 8.4、Three water chestnut 18NV 85 section of entire compatible electrically controlled schematic diagrams 17 1 2 3 4 5 6 7 B U1 L Vin 4 3 1 2 D1 - D4 4001 C1 2 1 0 4 / 2 75 AC- N 编号 3 OUT JS2-B85AC-M01A/0 GN D L1 火线 由 压 机 的 ON端引人 8 +5 1 安规 电 容 E1 C1 I C4 7805 C2 10 4 E1 E3 2 F USE+ ZR F USE C3 104 4 7 0 UF / 2 5 V T RANS 1 0 0 0 UF/ 3 5 V 1 0 4 4 7 0 UF / 5 0 V 零线 D D N HI IC1 U1 X3 B B GND C5 IC1 X4 B MI D I C4C 9 B MF1 低风 X5 B 中风 X4 B P07 14 R9 30 220 4148 D6 4 .7 K P10 8 P2 4 / AN 3 高风 R1 0 2 2 0 31 4148 D7 D9 13 52 X6 B X2 B X1 B 换向阀 外风 机 2 X2 B 15 20 03 1 电加热 COM 52 X6 B I C3B L 压机 3 52 CB 16 火线 CN UL 20 03 52 CB COM 压机 火线 +5 V CM CN C4 9 10 11 12 13 14 15 16 2 步 进 3 电 VC C GND QH 7 QG 6 10 4 机 9 10 11 12 13 14 15 16 1 CNM GND G 3 电 4 C2 2 C2 4 10 2 10 2 10 2 17 51 R4 7 51 P0 3 27 P0 4 P1 2 1 P1 1 32 1 GND R11 4. 3 K P2 1 / AN R1 5 5 C10 10 2 +5 39 0 R1 2 4. 3K GND +5 V P2 0 / AN 室温 28 P0 5 IC4F 6 2 P1 3 IC4E 3 5 20 03 B 。 t 3 铜头 R1 3 4. 3K C1 1 10 4 R7 22 0 CNG 管温 C9 10 4 GND IC5 +5 A T2 4C 0 2 R 40 R 39 4.7K 4.7K 8 P1 4 / CNTR0 1 2 6 3 E8 4.7u f/2 5F 7 4 5 GND 8 GND E7 +5 V GND E 10 R44 2K 30 0K 14 1 R45 10 K E6 2 2 SDA R 3 51 0 Xi n Vr e f 10 Vc c 13 +5 V 1 1 / RES ET C1 2 22 uf / 2 5V CN1 6 1 R46 10 K GND 4. 7K R2 Vs s 1 2 CNVs s 16 三菱(37544)18NV P型板85款全兼容电控原理图 产品 名称 R4 1 8. 00 GND 90 12 2 1 SCL P3 7 XL Q7 1u F/50 V B P3 4 1 5 Xo ut 10 0u F/25V R6 10 0 1 泪滴 C8 10 4 R1 4 4 4 7 UF/16 V 12 5 。 t 2 C1 0 10 4 +5 机 10 4 E9 管温2 C7 10 4 4 E4 11 R5 C2 0 2 1 4. 7 K GND 22 Uf / 5 0V R8 4.7K 2K CNG2 R4 6 GND GND BZ E5 10 4 计 审 绘 图 批 准 10 uf / 1 6v 日 期 标准 化 GND GND 佛山市中格威电 GND 2 3 4 5 6 7 2 3 4 5 CN B IN 4 0 0 7 变压器 FU S E F3 .1 5 A 2 5 0 V AC 火线 由 压 机 的 COM 端进 入 U1 变压初级 IN 4 0 0 7 CN 5 2 C-1 A C2 2 102 P11 32 26 4 .7 K D8 P03 5 2 X6 A P12 1 P13 2 25 P02 D1 5 B 31 P10 M C 20 03 B X1 A 四通阀 X2 B 电加热 5 2 X6 B P24 5 13 L1 压机 5 2 CB 外风机 X1 B 11 R2 6 220 1 C1 4 7 3 /2 75 V 1 1 P00 23 6 P23 7 P32 4 IC 4 +5 17 18 P01 2 P3 0 P3 1 10K R19 10K 28 P05 24 2 1 GND C2 4 104 Xout P20 10K P21 3 +5 4 C2 6 104 R3 2 4 .3 k GND Q1 R2 0 2 K AC..ZERO R3 0 10K C1 1 1 0 K 102 C2 5 103 2 +5 +5 R2 1 4 .3 K +5 C23 10 4 QD QE QF 1 2 3 4 5 IC2 7 QH 6 8 10 SCLR RCK R38 4. 7 K QG M74HC595 1 2 C5 16 VCC B G 90 13 Q4 13 GND GND +5 104 XH-2A GND GND 90 13 Q2 GND 10 VRE F GND C1 7 104 15 +5 E1 1 0 0 u F/1 6 V R4 10K 4 5 29 P06 GND R1 6 4 .7 K S P37 C1 8 102 产品 名称 +5 22 R3 10K C1 0 102 3 16 Vss CNW +5 R3 1 4 .7 K CNTR0 P14 C1 3 102 风机 反馈 GND 4 E2 GND 5 计 绘 图 小分体电控原 理图( 0C314芯片) C2 9 104 陈 斐 审 A 核 批 准 日 期 标准 化 佛山市中格威电 6 18 设 10 0μF/2 5V GND 3 QC 12 R7 4. 7 K CN1 R2 9 1 0 K INT10 GND GND GND 11 S1 14 4. 7 K GND R2 C1 8 1 5 SCK 1 5 R13 R2 7 10K GND GND GND 1 C2 0 104 R5 QB 13 Vcc RX 300K +5 GND R1 4 R22 10 0 47 1 104 C1 9 14 10 0 C28 11 /RESET Xin XL 8 .0 0 GND 47 1 GND Q3 9012 10K E6 47 UF/2 5V GND C27 C7 2K E3 GND 7 4 CLK DATA 6 P22 104 510 5 4 3 2 1 B E5 4 7 u f/2 5V 3 QA GND GND R3 3 1uf/50V C2 1 104 2 IC7 AT 2 4 C0 2 27 P04 R23 GND 1 5 15 R3 4 R36 +5 R1 R1 7 4 .3 K 8 R3 7 4 .7 K 6 P07 30 7 2K TEMP GND CNM1 B R1 8 4 .7 K 10 C 步 进 电 机内 风 门 +5 2 5 4 3 2 1 B D1 6 GND GND A 步 进 电 机外 风 门 C16 10 2 GND 1 GND C1 4 104 COM CLAMP IN 7OUT 7 IN 6OUT 6 IN 5OUT 5 IN 4OUT 4 IN 3OUT 3 IN 2OUT 2 IN 1OUT 1 R3 5 4 .7 K R2 4 390 BC R B Tp 管 C12 10 2 C8 10 2 CNM 9 10 11 12 13 14 15 16 20 03 R1 0 2 2 0 IC1 0C314 IC5 4148 BZ +5 QA QB QC QD QE QF QG 1 2 3 4 5 6 8 7 6 5 4 3 2 1 IC 9 B Tr 室 CNE XH-6A +5 S GND R6 2 2 0 MC3 0 2 1 CNG GND DI 20 P33 12 CNVSS R2 5 3 3 0 6 3 B C15 4148 D9 R1 1 2 2 0 U1 3 2 D1 4 4 1 4 8 4148 WR +5 CFI 1 .2 u F TYPE1.1 dhon/off 3 N 5 16 C2 1 0 4 /2 75 V 电 加 热 /无 CS 21 P34 P25 9 4 D1 3 4 1 4 8 D1 2 4 1 4 8 10 4 19 外风机 D7 R9 R8 4 .7 K 4 .7 K 8 FM C CNU 4148 9 GND IC3 12 +5 TYPE1.0 heat/cool E4 4 7 u F/2 5 V 四通阀 GND R1 2 4 .7 K D1 0 4 1 4 8 单 冷 / 双温 HSTP.1 C9 1 0 4 X2 A FM O D1 1 4 1 4 8 4148 HSTP.0 GND C E1 1 2 2 0 UF/2 5 V D GND S W 1 U1 JS2-B85aC-M01A/2 104 +5 R2 8 火线 8 编号 C6 R1 5 10K H E AT 20 S OUT +5 应急 键 电加热 C4 104 E1 0 1 0 0 0 UF/3 5 V 变压器次级 COM CM 压机 Vin AC.ZERO D1 2 D1 -D 4 2 D T 3 2 ZR 6 2 1 -1 0-1 2 6 火线 L 7 +5 IC 8 7 8 0 5 1 1 零线 N 6 B CN C C3 1 0 4 /2 75 V AC G ND 1 7 子有限公 司 8 8.5、Mitsubishi Jin dynasty 85 model of simple three lamp electrically controlled motherboards N1 A 核 设 GND 1 C 2 GND C8 10 2 HS 0 0 3 8 2 2 UF/16 V 3 P3 0 26 51 +5 V SW1 GND A 10 15 Q3 R1 C N 13 3 R2 2 10 k 强制按键 R4 6 3 2 1 E2 1 +5 V 1 RMT S 3 GN D GND R2 3 10 k +1 2V 20 03 6 S CN 1 2 3 C2 3 +5 8 M7 4 H5 9 5 8 7 6 5 4 3 2 1 AJ1 进 2 Q6 90 13 R45 4. 7 K 13 GN D BB 5 BB 39 0 CLAM COM P OUT 7 IN 7 OUT 6 IN 6 OUT 5 IN 5 OUT 4 IN 4 OUT 3 IN 3 OUT 2 IN 2 OUT 1 IN 1 2 步 R36 P2 2 / AN 16 IC7 E7 22 uf / 2 5V 10 0 C6 10 4 S CL R 1 0 5 4 Q H* 9 3 2 1 14 15 CL OC K S I DA T A S CK 1 1 QF QE QD QC QB QA B B 25 AA 2 R44 4. 7 K 8 7 6 5 4 3 2 1 20 03 C5 5 P02 +5 V CLAM COM P OUT 7 IN 7 OUT 6 IN 6 OUT 5 IN 5 OUT 4 IN 4 OUT 3 IN 3 OUT 2 IN 2 OUT 1 IN 1 4 R35 RC K 1 2 IC6 C N -AC A P3 1 10 0 +5 V GND 10 4 B B 18 24 IC 3 CN12 负离子 P3 2 20 03 I C3C EF AN HEAT P3 3 19 23 P01 - + FM C 20 3 P00 AA 4 ST B 14 X1 B C 4 I C3D 外风 机 P23 R34 10 0 20 03 CNH M37544G2SP 换向阀 7 4 20 03 I C3E 电加热 R3 2 D1 1 4 1 4 8 4148 4 .7 K 13 X3 B CF I VALVE +5 R3 3 D1 0 4 1 4 8 9 P2 5 / AN 20 03 I C4E CF 4148 D8 GND 20 03 I C4D X5 B LO 10 4 2 15 子有限公 司 8 9. PCB function: NOTE: Ts is the set temperature, Tr is indoor room temperature, TP1 is indoor coil pipe temperature, TP2 is outdoor coil pipe temperature. Display panel [1]only two LED ①running lamp(green):power on light, flash one time/ one second during anti cooled wind. ②timer lamp(yellow):only light at timer state. [2]eleven LED ① running lamp(green):power on light, flash one time/ one second during anti cooled wind. ②temperature lamp(green):16~31℃ set temp. and room temp. display, light is set temp. flash is set temp. [3]two LED and two 8LED running timer ① running lamp(green):power on light, flash one time/ one second during anti cooled wind. ② timer lamp(yellow):only light at timer state. ③8LED display set temp., also it can display timer time and failure code. [4]LED multi-colour panel ①according to display mode: dehumidification, cooling, ventilation, heating, auto, sleep, fan speed, swing, timer, indoor fan running. 19 Cooling ● Start up the compressor: when the room temperature is more than Ts+1℃, compressor → start-up ● Shut down the compressor: when the room temperature is less than or equal to the set temperature Ts-1℃, compressor → shutdown ● When the temperature of coil pipe of the indoor units is less than or equal to 1℃ for one minute and the compressor has continuous run for more than ten minutes, the compressor and outdoor blower fan shut down through the electric control board and the indoor blower fan is running at low speed. ● When the temperature of coil pipe of the indoor units is more than or equal to 7℃ and the compressor has shutdown for more than three minutes, the compressor and outdoor blower fan start to run and the indoor blower fan is running at set speed. ● When the temperature of coil pipe of the indoor units is equal to or less than -10℃ for three minutes in the compressor has continuous run for three minutes, the compressor, indoor and outdoor blower fans and swinging wind shut down. Restart up six minutes later; if the above situations appear again within six minutes, all the outputs are shut down through the electric control board and display failure. ● When you press turbo button of remote, the air conditioner enter turbo running, compressor and outdoor blower fan turn on all along, indoor blower fan run at high speed, turbo indication is light. ● After the compressor runs five minutes, the lamp flashes 4 times per six seconds or display E4 if the temperature of indoor coil pips is more than 25℃ in the continuous 20 minutes. The controller will automatically shut down if the temperature of indoor coil pips is more than 25℃ in another continuous 20 minutes, that is the abnormality protection of outdoor units and the indicator lamp keeps its former state of flashing. If the temperature of indoor coil pips is less than 25℃ in the second 20 minutes or the compressor shuts down, the electric control board will store to the normal display and the time is restarted when starting up the compressor next time. 20 Tr 7¡ ã C 1¡ ã C -10¡ ã C compr essor out door bl ower f an door bl ower f an Tr compr essor door bl ower f an Heating (only applicable to heat pump units) ● Start up the compressor: when the room temperature is less than Ts-1℃, compressor → start-up ● Shut down the compressor: when the room temperature is more than or equal to the set temperature Ts+3℃, 21 compressor → shutdown ● The electric heating start-up in the heating mode shall meet the following conditions: ① start up the compressor and indoor blower fan ② none defrost ③ TP1< 49℃ ④Tr ≤20℃. ● The electric heating shutdown in the heating mode shall meet one of the following conditions: ① shutdown indoor blower fan ② Tr ≥ 23℃ ③ TP1≥50℃. ● In the heating mode, the indoor flower fan can be set as high/ medium/ low /automatic running mode by remote control however the anti cool air function is prior. In the heating mode, the anti cool air control function is to control shutdown of the indoor blower fan by detecting the temperature of coil pipe of evaporator so as to attain the purpose of preventing cold air from blowing. ● For the waste heat emission function in the heating mode, in principle, the indoor blower fan shall be on for fifteen seconds after the electric heating is closed. ● When the temperature of coil pipe of indoor units is more than or equal to 56℃, the outdoor blower fan shuts down and it enters the overload protection; when the temperature of coil pipe of indoor units is less than or equal to 52℃, the outdoor blower fan starts up and it exit the overload protection. ● When the temperature of coil pipe of indoor units rises to 63℃, the compressor and outdoor blower fan are closed and two minutes later, the change valve is closed. The indoor blower fan is running at the set speed. Restart up six minutes later; if the above situations appear again within ten minutes, all the outputs are shut down through the electric control board and display failure. ● When you press turbo button of remote, the air conditioner enter turbo running, compressor ,outdoor blower fan and four-way valve turn on all along, indoor blower fan run at high speed and it must meet start condition, turbo indication is light. ● After the compressor runs five minutes, the lamp flashes 4 times per six seconds or display E4 if the temperature of indoor coil pips is less than 30℃ (heating) in the continuous 20 minutes. The controller will automatically shut down if the temperature of indoor coil pips is less than 30℃ in another continuous 20 minutes, that is the abnormality protection of outdoor units and the indicator lamp keeps its former state of flashing. 22 Tr Tr +3 -1 over 6 MIN COMPRESSOR out door bl ower f an four-way valve bl ower f an st ar t - up st ar t - up st ar t - up st ar t - up l ower l ow speed speed st ar t - up st ar t - up 2 MIN st ar t - up l ower l ow speed speed l ow speed 23 st ar t - up 2 MIN st ar t - up Tr 36 compr essor door bl ower f an Defrost (only applicable to the heating mode) 1. the intelligent defrost In the heating mode, the electric control board checks and compares the temperature of indoor room and indoor coil pipe after the compressor works for a while; judge whether the outdoor heat exchanger part is frosted or not according to conditions such as the change of indoor coil pipe temperature; if it is judged as frosted, it automatically enters defrosting process. When defrosting, close the indoor and outdoor blower fan and four-way valve. 2. Outdoor PCB for defrost. In the heating mode, the unit defrost by outdoor control board: ①unit start defrost shall all meet the following conditions: a、compressor continuous running over 7 minutes; b、defrost relay shut off; (-5℃) c、compressor cumulate running time over 50 minutes.; ②first defrost interval time is 50 minutes, later defrost interval time decided by last defrost time. Defrost time(minute) Next defrost interval time(minute) 15 30 10--15 40 7--10 60 3--7 70 24 80 ≤3 (2)end defrost condition(meet one of follows) a、defrost time have fifteen minutes. b、defrost relay turn on; (>8℃) c、press ON/OFF key in defrost process. 3. Outdoor sensor for defrost ① unit start defrost shall meet one of the following conditions: a. compressor cumulate running time over 30 minutes and it continuous running over 3 minutes, the temperature of coil pipe of the outdoor units is equal to or less than -15℃ for one minutes (Tp2≤-15℃). b. compressor cumulate running time over 40 minutes and it continuous running over 3 minutes, the temperature of coil pipe of the outdoor units is equal to or less than -5℃ for one minutes (Tp2≤-15℃). c. Air conditioner first power on or it wait over 30 minutes ,the temperature of coil pipe of the outdoor units is equal to or less than -2℃ (Tp2≤-15℃) ②end defrost condition(meet one of follows) a. the temperature of coil pipe of the outdoor units is more than 15℃ (Tp2≥-15℃). b. defrost time have fifteen minutes. Tr TP2 compr essor out door bl ower f an door bl ower f an 25 Tr TP2 compr essor out door bl ower f an door bl ower f an Tr TP2 compr essor out door bl ower f an door bl ower f an 26 Tr TP2 defrost time over 15 MIN or TP2 >15¡ ã C compr essor out door bl ower f an door bl ower f an ■ Sequence chart in defrosting mode st ar t def r ost end def r ost def r ost compr essor st ar t - up shut down out door bl ower f an st ar t - up our - way val ve door bl ower f an st ar t - up st ar t - up st ar t - up shut down shut down st ar t - up st ar t - up shut down st ar t - up shut down st ar t - up Dehumidification Dehumidification running is to eliminate the water vapor in the air by using the cool circulating capacity, but the dehumidification will not decrease the indoor temperature in great deal. The air conditioner automatically repeats on and off circulation according the room temperature, which is shown in the following figure. 27 Tr ¡ ã C ¡ ã C Tr ≤ 10℃ i ndoor bl ower f an l ow speed f or bi d dehumi di f y st ar t - upshut down st ar t - up shut down shut down st ar t - up shut down st ar t - up shut down door shut down st ar t - up shut down shut down st ar t - up shut down st ar t - up shut down bl ower f an st ar t - up shut down ● In the dehumidification mode, the indoor fan is running at the low speed for twenty seconds at first, then it select working mode. Ventilation working mode (only applicable to single cooling unit) In the ventilation mode.When ventilating, the compressor, outdoor blower fan, four-way valve and electric heating are all closed and the indoor blower fan is running at the set speed. Tr compr essor out door bl ower f an door bl ower f an Automatic mode ● Conditions for entering the automatic running mode are: After power-up for the first time, start up and select the automatic operating mode of remote or press emergency key, the working mode depends on Tr and if the working 28 mode had set , it doesn’t change by Tr and the default set temperature is 25 ℃. Tr 26¡ ã C 21 25 mode Time on and time off When the time on or time off is used, the clock of remote controller shall be corresponding to the current clock and the timing times is less than or equal to 24 hours, when the timing time is reached, unit will start-up or shutdown. Sleep function When the sleep key is press, air conditionerenter sleep state, indoorblower fan running at low speed, only sleep indication display. Emergency key function There is a forcible execution key on the panel of indoor units and the air conditioner can run by pressing the key when the remote control is out of work or missing. When pressing down the forcible execution key, then power up and enter the self-check program. Failure display LED lamp display failure code explain code DF display at flicker 1/1 The reason of fault and solution explain defrost 29 Normal, the defrost state is removed, it will return to normal condition automatically on state SEC display at flicker 1/3 indication 1、 Normal (during heating mode ) anti cold wind off state SEC 2、It will be removed when the coil pipe temperature sensor reaches certain temperature. 1、Check whether the resistance of the sensor is normal (the resistance is 5КΩ in the normal temperature 25℃), when it is abnormal the sensor should be replaced. display at display at flicker 1/1 E2 room temp. on/off off state SEC 2、Check whether there is short circuit or open circuit in the wire of the sensor, and whether the plug is sensor fault state connected well, whether there is welding off or rosin joint on the electric control board, if there is any, it should be repaired. 3、When the 1 and 2 are both normal, then the components or integrated circuit is damaged, the electric control board should be replaced. 1、Check whether the resistance of the sensor is normal (the resistance is 5КΩ in the normal temperature 25℃), when it is abnormal the sensor should be replaced. display at display at flicker 3/5 E3 coil temp. on/off off state SEC 2、Check whether there is short circuit or open circuit in the wire of the sensor, and whether the plug is sensor fault state connected well, whether there is welding off or rosin joint on the electric control board, if there is any, it should be repaired. 3 、 When the 1 and 2 are both normal, then the components or integrated circuit is damaged, the electric control board should be replaced. 1、 Check whether the winding resistance and operation current of the compressor are normal. display at display at flicker 4/6 E4 outdoor unit off state on/off state SEC 2、Check whether the high and low pressure is normal when the unit is running. abnormal 3、Check (whether the coil pipe sensor is normal) whether the contact of the inserter on the circuit board is well, the coil pipe temperature sensor is fixed, the 30 evaporation of the indoor unit is well, the key is to check the evaporator temperature detected by the coil pipe temperature sensor has reached the cooling or heating temperature. 4、Check whether the surface of the condenser is too dirty, it should be cleaned when it is too dirty. 5、Check whether the capacitance of the outdoor motor and the fan is damaged, it should be replaced when it is damaged. 6、If the above items are normal, the electric control board should be replaced. 1、Check whether two sets of plugs on the outlet end of the motor have loosed from the socket of the PG motor no feedback flicker 5/7 E5 display at display at 2、Check whether the indoor motor has damaged, the signal of indoor SEC off state off state electric control board, insert it firmly when loosing. fan motor should be replaced when it is damaged 3、 Check whether the controllable silicon and other components on the electric control board have damaged, replace the controllable silicon or electric control board when they are damaged. 1、Firstly check whether the indoor fan is normal. PG motor E6 flicker 6/8 display at no over zero SEC off state signal display at off state 2、Check whether the signal outputting from the integrated chip of the electric control board is normal, the electric control board should be replaced when the signal is abnormal. 1、Check whether the winding resistance and operation current of the compressor are normal 2、Check whether the high and low pressure is normal when the unit is running. display at flicker 7/9 display at outdoor 3、Check whether the indoor and outdoor wiring is off state SEC off state feedback fault right; when it is wrong, connect them again E7 according to the circuit diagram 4、 Check whether the contact of the inserter on the circuit board and the connection are well, otherwise repair. 5、Check whether the signal feedback wire is 31 disconnected, replace or connect the feedback signal wire. 6、Check whether the supply power is phase-lacking or phase opposition. 7、Check whether the AC electromagnetic contactor is well. 1、Check whether the filter of the indoor unit is dirty or blocked, and clean if it is dirty. 2、Check whether the indoor fan is running normally, frost display at flicker 8/10 display at E8 and replace the motor if it is abnormal. protection/over off state SEC off state heat protection 3、Check whether indoor pipe temperature sensor is normal, and replace the sensor if it is abnormal. 4、Check whether the system pressure is normal, if abnormal, should check whether there is leakage, and fill the refrigerant again. 32 10. TROUBLE SHOOTING Indoor Tr sensor error Is CN (Tr sensor connector) connected properly? NO Connect CN properly. YES Is Tr sensor resistance value (5KO at 25? ) normal? NO Replace TA sensor. YES Indoor P. C. board is defective. Replace P. C. board. Indoor TP1 sensor error Is CN (TP1 sensor connector) connected properly? NO Connect CN properly. YES Is TP1 sensor resistance value (5KO at 25? ) normal? NO Replace TC sensor. YES Indoor P. C. board is defective. 33 Replace P. C. board. Only indoor fan motor does not operate. <Primary check> (1) Is it possible to detect the power supply voltage (200-240V) between L and N on the terminal block? (2) Does the indoor fan motor operate in cooling operation? Turn off power supply once, and turn it on again. Does compressor continue to operate? YES NO Is it possible to detect AC 220V between pin(high/middle/low) and pin(common) of motor connector . Start to operate indoor unit in cooling operation at airflow level “ LOW” ,wait three minutes.. Does indoor fan operate? NO Replace main P.C. board. YES NO Turn off indoor unit and rotate cross-flow fan by hand when the unit is on standby.Is it possible to rotate cross-flow fan by hand properly? NO Replace bearing. NO Replace capacitor YES YES Is capacitor of indoor fan ok? YES Fan motor operates normally. Replace indoor fan motor. 34 Compressor does not operate. Turn on power supply. Does OPERATION indication indicate? <Primary check> (1) Is the room temperature higher than the preset temperature in cooling operation? (2) Is the crossover cable connected properly? NO Check power supply. YES Does compressor delay three minutes by temperature changes or others? NO Is resistance value of room sensor (Tr) and heat exchanger sensor (TP1) normal? NO Room sensor or heat exchanger sensor is defective. YES Replace room sensor or heat exchanger sensor. YES Wait three minutes Is it possible to detect AC 220-240V on terminal block or contactor of compressor? NO Microcontroller is defective or miniature relay is defective.. Replace P.C. board. YES Are all of compressor cords normal? NO Rewire or replace defective cords. YES Is compressor motor winding normal?(Check winding resistor.) NO Compressor is defective. Replace compressor. Capacitor is defective. Replace capacitor. Overload relay is defective. Replace overload relay. Compressor is defective. Replace compressor. Gas shortage (Gas leak) Supply gas. YES Is capacitor for compressor normal? NO YES NO Is overload relay normal? YES NO Does compressor start? YES Does compressor stop after a while? YES Is gas quantity normal? (Check gas pressure.) NO YES Compressor is defective. YES Replace compressor. 35 Press START/STOP button. Is transmission mark indicated? The unit does not beep at all. OPERATION indication on indoor unit is not indicated. NO YES Is receiver on indoor unit exposed to direct sunlight? Press RST button on remote control with tip of pencil. NO YES YES Is there any thyristor fluorescent light nearby? NO NO YES Does indoor unit operate when moving remote control near receiver or indoor unit? YES YES Press START/STOP button. Batteries are exhausted. NO Does indoor unit start to operate by automatic restart function? Is transmission mark indicated? NO YES YES NO Does indoor unit beep and operate? YES Does radio sound is affected by remote control when a signal is transmitted at distance of 5 cm from radio? NO YES Remote control is defective. P.C. board is defective. Avoid direct sunlight. Keep indoor unit away from thyristor fluorescent light. Replace P.C. board. Replace batteries. 36 Normal operation Replace remote control. Trouble shooting NO Trouble Is the unit display normal? YES Check power supply mains or interconnection wires YES Does outdoor unit run? YES NO Is the power applied to the unit? NO Does the compressor run normally? Is the power normal? check the voltage between L&N of terminal block Check the compressor ,wires and it’ s capacitor. NO Check the wiring of indoor and outdoor YES Press the power ON/OFF button of wire control or remote control Does the control ok? NO YES Does the indoor unit run? YES Does the beeper beep? Normal NO Check the failure code according to the failure table YES NO NO Control failure YES Does the control PCB ok? Is the display all off? YES Check the connector on display PCB connected to control PCB Check the display PCB itself 37 NO Control PCB failure Indoor unit and outdoor unit don’ t operate Indoor and outdoor unit don’ t operate Does the electric switch cut off after a few nimutes? Does the electric switch cut off? YES Is the power supply no problem? YES NO Reconnect the wires. NO Change a good remote, does the air conditioner running? Is the insulation of indoor unit and outdoor unit no problem? Press emergency key, does the air conditioner running? Replace remote control. YES Replace remote receiver or display panel. NO Does the fuse of indoor PCB burn out? YES NO YES NO YES Rreplace the failure componet. Make the power supply ok. YES Is the wires of indoor unit and outdoor unit no problem? YES Find the reason and replace the failure componet. NO YES Replace fuse of indoor PCB. NO Is the resistance of each main component no problem? Does the transformer has output? NO Replace transformer. YES Does the 12V and 5V of indoor PCB have? YES normal 38 NO Replace PCB. 39