Haier AU282AHAFA [11/14] Installation procedure

Содержание

• Installation instructions 1
• Outdoor unit 1
• Room air conditioner 1
• Name of parts 2
• Carefully read the following information in order to operate the airconditioner correctly 3
• Safety cautions 3
• Warning 3
• Earthing 4
• Earthing wire should not be con nected to the gas pipe water pipe lightning rod or phone line in correct earthing may cause shock 4
• If conditioner is installed in a small room be sure to take every measure in order to prevent suffocation accident even in case of refrigerant leakage 4
• Incorrect installation may cause water leak electrical shock and fire hazard 4
• Incorrect installation may cause water leaking electrical shock and fire hazard 4
• Incorrect pipe use may cause water leaking 4
• It easily cause electrical shock without circuit breaker 4
• May not use wire or any other materials replacing fuse other wise may cause faults or fire accidents 4
• Otherwise will be shocked 4
• Safety cautions 4
• The falling of goods and people may cause accidents 4
• Warning 4
• Accessories 5
• Installation procedure 5
• Selection of the place of installation 5
• Installation of outdoor unit 6
• Installation procedure 6
• 1 outline piping 8
• Installation of outdoor unit 8
• Installation procedure 8
• Refrigerant piping 8
• 2 piping size 9
• 3 limitations for one way piping length and vertical height difference 9
• 4 piping connection 9
• Installation procedure 9
• Refrigerant piping 9
• Air discharging method 10
• Check if the pressure drops 10
• Installation procedure 10
• Charging amount of refrigerant 11
• Installation procedure 11
• Piping and indoor unit vacuumizing 11
• Refrigerant piping 11
• 1 selection of size of power supply and interconnecting wires 12
• 2 wiring connection 12
• A warning 12
• Au182afaea au182afmea au182afafa au182afmfa 12
• Au282ahafa 12
• Danger of bodily injury or death 12
• Electric wiring 12
• Electric wiring work should be conducted only by authorized personnel do not connect more than three wires to the terminal block always use round 12
• Installation procedure 12
• Make wiring to supply power to the outdoor unit so that the power for the indoor unit is supplied by terminals 12
• Precautions for electric wiring 12
• Turn off electric power at circuit breaker or power source before making any electric connections ground connections must be completed before making line voltage connections 12
• Type crimped terminal lugs with insulated grip on the ends of the wires 12
• Use copper conductor only select wire sizes and circuit protection from table below this table shows 20 m length wires with less than 2 voltage drop 12
• Installation procedure 13
• A caution 14
• Electric wiring 14
• Installation procedure 14
• Run the unit continuously for about 30 minutes and check the following 14
• Suction pressure at check joint of service valve for gas pipe discharge pressure at check joint on the compressor discharge pipe temperature difference between return air and supply air for indoor unit 14
• Test run 14
• This unit will be started instantly without on operation when electric power is supplied be sure to execute off operation before electric power is disconnected for servicing 14
• Trouble display 14

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Installation Procedure Refrigerant piping 6 Piping and indoor unit vacuumizing Use vacuum pump to perform vacuumizing It is strictly forbidden to use the refrigerant to remove the air inside the system After air tightness test and discharging all the nitrogen connect the vacuum pump Liquid side It shall use the vacuum pump of lower than 755mmHg high vacuum degree and large air discharging over 401 min The vacuumizing time depends on the length of the connecting pipe generally is 1 2 hours When vacuumizing it shall be confirmed both gas and liquid side valves are closed If after 2 hours vacuumizing it cannot reach the vacuum degree below 755mmHg it can be vacuumized for other 1 hour If after 3 hours vacuumizing it still cannot reach the vacuum degree below 755mmHg check if there is any leaking point and repair the them If after over 2 hours vacuumizing the vacuum degree is below 755mmHg close the VL and VH on the meter separator and stop vacuumizing 1 hour later to confirm if the vacuum degree changes If changes it indicates there is leaking point in the system Check the leaking point and repair After finishing the above vacuumizing change the vacuum pump into refrigerant pump to charge the refrigerant 7 Charging amount of refrigerant When the total length L of the two indoor units connecting pipe is less than 5m it is unnecessary to charge additional refrigerant If the connecting pipe L exceeds 5m it shall charge Mg additional refrigerant per meter That is Refrigerant charging amount L 5 x M g For Series 18 M 30 For Series 28 M 65 Only in COOLING operation can charge the additional refrigerant When charging the refrigerant shall be charged from the charging nozzle of low pressure vavle Be carefull when charging refrigerant do not let the air mix into the system and must charge the additional refrigerant in liquid condition 10