innovair BIN312C2V31 Service Manual
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innovair BIN312C2V31 Service Manual

innovair BIN312C2V31 Service Manual

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CSI-1206-A

SERVICE MANUAL

BIN312C2V31
BIN414C2V31
BIN520C2V31
BIN625C2V31
AIR CONDITIONER

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Summary of Contents for innovair BIN312C2V31

  • Page 1: Service Manual

    CSI-1206-A SERVICE MANUAL BIN312C2V31 BIN414C2V31 BIN520C2V31 BIN625C2V31 AIR CONDITIONER...

  • Page 2: Table Of Contents

    CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution.......................... 1 1.2 Warning ............................1 2. Function................................ 6 3. Dimension ..............................8 3.1 Indoor Unit............................. 8 3.2 Outdoor Unit..........................11 4. Refrigerant Cycle Diagram ........................12 5. Wiring Diagram ............................14 5.1 Indoor Unit........................... 14 5.2 Outdoor Unit..........................

  • Page 3: Precaution

    1. Precaution 1.1 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. 1.2 Warning Installation Do not use a defective or underrated circuit breaker.
  • Page 4 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. Be sure the installation area does not deteriorate with age.
  • Page 5 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.
  • Page 6 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.
  • Page 7 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.

  • Page 8: Function

    2. Function Indoor unit Operation by remote controller Sensing by room temperature Room temperature sensor. Pipe temperature sensor. Room temperature control Maintain the room temperature in accordance with the setting temperature. Anti-freezing control in cooling Prevent the water being frozen on evaporator by sensing the evaporator pipe temperature in cooling mode Time Delay Safety control...
  • Page 9 Outdoor unit Power relay control The unit has 3 minutes delay between continuously ON/OFF operations. Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly. Anti-rust cabinet Made from electrolytic zinc steel sheet and anti-rust coated components. Valve protection cover It protects the valves and prevents water from dripping.

  • Page 10: Dimension

    3. Dimension 3.1 Indoor Unit Model W(mm) H(mm) D(mm) BIN312C2V31 BIN414C2V31 BIN520C2V31 BIN625C2V31 1080...
  • Page 11 Model R(mm) L(mm) H(mm) Dimension of installation hole(mm) BIN312C2V31 BIN414C2V31 Model R(mm) L(mm) H(mm) Dimension of installation hole(mm) BIN520C2V31...
  • Page 12 Model R(mm) L(mm) H(mm) Dimension of installation hole(mm) BIN625C2V31 106.5...

  • Page 13: Outdoor Unit

    3.2 Outdoor Unit Dimension Mode BIN312C2V31 BIN414C2V31 BIN520C2V31 BIN625C2V31...

  • Page 14: Refrigerant Cycle Diagram

    4. Refrigerant Cycle Diagram For cooling only models: INDOOR OUTDOOR LIQUID SIDE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE COMPRESSOR...
  • Page 15 For heat pump models: INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING VALVE 3-WAY VALVE (Heating Model only) ACCUMULATOR COOLING COMPRESSOR HEATING...

  • Page 16: Wiring Diagram

    5. Wiring Diagram 5.1 Indoor Unit BIN312C2V31, BIN414C2V31, BIN520C2V31 BIN625C2V31...

  • Page 17: Outdoor Unit

    5.2 Outdoor Unit BIN312C2V31 BIN520C2V31...
  • Page 18 BIN625C2V31 BIN414C2V31 202037391056...

  • Page 19: Installation Details

    6 Installation details 6.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque inch N.cm N.cm 6.35 1500(153kgf.cm) 1600(163kgf.cm) 9.52 2500(255kgf.cm) 2600(265kgf.cm) 12.7 3500(357kgf.cm) 3600(367kgf.cm) 4500(459kgf.cm) 4700(479kgf.cm) 6500(663kgf.cm) 6700(683kgf.cm) 6.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Rated current of appliance Nominal cross-sectional area (mm²) >3 and 6...

  • Page 20: Pipe Length And The Elevation

    6.3 Pipe length and the elevation Pipe size Standard Max. Max. Additional Capacity length Elevation Length refrigerant Btu/h Liquid B (m) A (m) (g/m) 3/8’’ 1/4’’ ( 9.52) ( 6.35) 1/2’’ 1/4’’ 12k,15k ( 12.7) ( 6.35) 1/2’’ 1/4’’ ( 12.7) ( 6.35) 5/8’’...

  • Page 21: Installation For The First Time

    6.4 Installation for the first time Air and moisture in the refrigerant system have undesirable effects as below: Pressure in the system rises. Operating current rises. Cooling or heating efficiency drops. Moisture in the refrigerant circuit may freeze and block capillary tubing. Water may lead to corrosion of parts in the refrigerant system.
  • Page 22 the meter does not indicate -0.1Mpa after pumping 30 minutes, it should be pumped 20 minutes more. If the pressure can’t achieve -0.1Mpa after pumping 50 minutes, please check if there are some leakage points. Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump. Confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump).
  • Page 23 Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2-way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa. 6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open position.

  • Page 24: Adding The Refrigerant After Running The System For Many Years

    6).When the electronic scale displays the proper weight (refer to the table), disconnect the charge hose from the 3-way valve’s service port immediately and turn off the air conditioner before disconnecting the hose. 7). Mount the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N.m.

  • Page 25: Re-Installation While The Indoor Unit Need To Be Repaired

    6).When the electronic scale displays the proper weight (refer to the gauge and the pressure of the low side), disconnect the charge hose from the 3-way valve’s service port immediately and turn off the air conditioner before disconnecting the hose. 7).
  • Page 26 5). Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0.1MPa. 6). Set the 3-way valve to the closed position immediately Do this quickly so that the gauge ends up indicating 0.3 to 0.5Mpa. Disconnect the charge set, and tighten the 2-way and 3-way valve’s stem nuts.

  • Page 27: Re-Installation While The Outdoor Unit Need To Be Repaired

    Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2-way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa. 6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems.
  • Page 28 2. Refrigerant charging Electronic scale Procedure: 1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder.
  • Page 29 Use torque wrench to tighten the service port cap to a torque of 18N.m. Be sure to check for gas leakage.

  • Page 30: Operation Characteristics

    7. Operation characteristics Mode Cooling operation Drying operation Temperature Room temperature ¡ ¢ £ £ £ Outdoor temperature (-15 ~ 50 :For the models with ~ 50 £ £ £ £ low temperature cooling system) CAUTION: 1. If air conditioner is used outside of the above conditions, certain safety protection features may come into operation and cause the unit to function abnormally.

  • Page 31: Electronic Function

    8. Electronic function 8.1 Abbreviation T1: Indoor room temperature T2: Coil temperature of evaporator T3: Coil temperature of condenser T4: Outdoor ambient temperature T5: Compressor discharge temperature 8.2 Display function 8.2.1 Icon explanation on indoor display board. ¤ Auto indicator This indicator illuminates when the air conditioner is in AUTO operation.

  • Page 32: Main Protection

    This indicator appears only when the compressor is in operation and indicates the current operating frequency. 8.3 Main Protection 8.3.1 Three Minutes Delay at restart for compressor. ---- 1 minute delay for the 1st time start-up and 3 minutes delay for others. 8.3.2 Temperature protection of compressor top.

  • Page 33: Operation Modes And Functions

    ----Preheating release condition: If T4 or the compressor starts running, preheating function will stop. ¡ ---- Heating cable It starts when T4<5 and stops when T4>15 ¡ ¡ 8.3.8 Zero crossing detection error protection If AC detects time interval is not correct for continuous 20 zero crossing signal, the unit will stop and the LED will display the failure.
  • Page 34 8.4.2 Cooling Mode 8.4.2.1 Compressor running rules: The operation frequency of compressor after starting submits to the following rule. Fmax=F4 Fmax=F7 Fmax=F8 Fmax=F6 Fmax=F3 If users switch on AC by remote controller, the compressor will run at the Fmax frequency for 7 minutes according to outdoor ambient temp.
  • Page 35 F: Keep the current frequency. G: Decrease the frequency to the lower level until to F1. H: Run at F1 for 1h.(if T1-Ts<-2 , compressor will stop) ¡ Meanwhile, the compressor running frequency is limited by the current. Current Compressor off I3COOL Frequency decrease I2COOL...
  • Page 36 8.4.2.3 Condenser high temperature T3 protection. When 55 <T3<60 , the compressor frequency will decrease to the lower level until to F1 and then ¡ ¡ runs at F1. When T3<54 , the compressor will keep running at the current frequency. ¡...
  • Page 37 8.4.4 Auto-mode This mode can be chosen with remote controller and the setting temperature can be changed between 17~30 £ In auto mode, the machine will choose cooling, heating or fan-only mode according to T ( T =T1-Ts). T=T1-Ts Running mode Cooling £...
  • Page 38 8.4.6.2 Timer on. After turning off, the machine will turn on automatically when reaching the setting time. 8.4.6.3 Timer off. After turning on, the machine will turn off automatically when reaching the setting time. 8.4.6.4 Timer on/off. After turning off, the machine will turn on automatically when reaching the setting “on”...

  • Page 39: Troubleshooting

    9. Troubleshooting 9.1 Indoor Unit Error Display Display LED STATUS Timer Auto Operation EEPROM parameter error Indoor / outdoor units communication protection Zero-crossing signal error Indoor fan speed has been out of control Open or short circuit of outdoor temperature sensor Open or short circuit of room or evaporator temperature sensor IPM malfunction or IGBT over-strong...

  • Page 40: Diagnosis And Solution

    9.2 Diagnosis and Solution 9.2.1 EEPROM parameter error diagnosis and solution...
  • Page 41 9.2.2 Indoor / outdoor units communication protection diagnosis and solution...
  • Page 42 9.2.3 Zero-crossing signal diagnosis and solution...
  • Page 43 9.2.4 Indoor fan speed has been out of control diagnosis and solution...
  • Page 44 9.2.5 Open or short circuit of temperature sensor diagnosis and solution.
  • Page 45 9.2.6 IPM malfunction or IGBT over-strong current protection diagnosis and solution " # " # & " #...
  • Page 46 9.2.7 Over voltage or too low voltage protection diagnosis and solution. ' )*+,...
  • Page 47 9.2.8 High temperature protection of compressor top diagnosis and solution & 01 20$ 1 01 " & 9.2.9 Inverter compressor drive error diagnosis and solution...
  • Page 48 Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) Connect discharge resistance (approx.1005 40W) or soldering iron (plug) between +, - terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.
  • Page 49 Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(T5) sensor. Measure the resistance value of each winding by using the multi-meter. Table 1: Some frequently-used R-T data for T1,T2,T3 and T4 sensor: Temperature ( Resistance Value (K5) 26.9...

This manual is also suitable for:

Bin520c2v31Bin625c2v31Bin414c2v31

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