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14

7.3 Fault Symptom: Non Air 

Conditioning Issues

Symptom 1: The system does not operate

● 

The air conditioner does not start immediately after the ON/

OFF button on the remote controller is pressed. 

  

If  the  operating  indicator  lights  up,  the  system  is  working 

normally. To prevent overloading of the compressor motor, 

the air conditioner starts 3 minutes after it is turned on.

● 

If the operation lamp and the "PRE-DEF indicator (cooling 

and heating type) or fan only indicator (cooling only type)" 

light up, it means you must choose heating mode. When the 

unit has just started up, if the compressor has not started, 

the IDU displays "anti cold wind" protection because the air 

outlet temperature is too low.

Symptom 2: The system switches into the fan mode during cooling

● In order to prevent the indoor evaporator from frosting, the 

system will switch into fan mode automatically, and promptly 

return to cooling mode.

● When the room temperature drops to the set temperature, 

the compressor goes off and the IDU switches to fan mode; 

when  the  temperature  increases,  the  compressor  starts 

again. It is same in heating mode.

Symptom 3: White mist comes out of unit
Symptom 3.1: IDU

● When humidity is high during cooling operation, if the interior 

of the IDU is dirty, the indoor temperature distribution will be 

uneven. The interior of the IDU needs to be cleaned. Ask the 

dealer for detailed information on how to clean the unit. This 

operation requires a qualified service person

Symptom 3.2: IDU, ODU

● When  the  system  switches  over  to  heating  operation 

after  defrost  operation,  moisture  generated  by  defrosting 

becomes steam and is discharged.

Symptom 4: Air conditioner generates noise during cooling
Symptom 4.1: IDU

● A "zeen" sound is heard immediately after the power supply 

is turned on. The electronic

    expansion  valve  inside  an  indoor  unit  starts  working  and 

makes the noise.

    it will reduce in about one minute.

    A continuous low "shah" sound is heard when the system is 

in COOL mode or stops.

    This noise can be heard when the drainage pump is running 

(optional accessory).

    A "pishi-pishi" squeaking sound is heard when the system 

stops after heating operation.

    Expansion  and  contraction  of  plastic  parts  caused  by 

temperature changes can make this noise.

Symptom 4.2: IDU, ODU

● A continuous low hissing sound is heard when the system is 

in operation.

   This is the sound of refrigerant gas flowing through both the 

IDU and ODU.

● A hissing sound is heard when the system starts or stops 

operation  or  after  the  defrosting  operation  has  been 

completed.

   This  is  the  noise  of  refrigerant  that  occurs  when  it  stops 

flowing or its flow changes.

Symptom 4.3: ODU

● When  the  tone  of  operating  noise  changes,  the  noise  is 

caused by the change of frequency.

Symptom 5: Dust comes out of the unit

● When the unit is being used for the first time after a long 

period of disuse, dust has got into the unit, which leads to 

this symptom.

Symptom 6: The units give off odours

● 

This unit will absorb the odours of rooms, furniture, cigarettes 

and others, and then disperse the odours again.

● 

During  operation,  the  speed  of  the  fan  is  controlled  to 

optimize product performance.

Symptom 7: The ODU fan does not spin.

8 Relocation

Please contact the dealer to dismantle and reinstall all the units. 

You need specialized skills and technology to move the units.

9 Disposal

This  unit  uses  hydrogen  fluorocarbons.  Please  contact  the 

dealer  when  you  want  to  dispose  of  this  unit.  Law  requires 

that  the  collection,  transportation  and  disposal  of  refrigerants 

must conform with the regulations governing the collection and 

destruction of hydrofluorocarbons.

Installation Manual

10 Precautions

●  Before  installing  the  unit,  ensure  that  all  Local,  National 

and  International  regulations  are  satisfied,  and  read  these 

“PRECAUTIONS” carefully.

●  The  precautions  described  below  include  important  items 

regarding safety. They must be strictly observed.

●  After the installation work, perform a test run to check for any 

problems.

●  Explain  how  to  use  and  maintain  the  unit  to  the  customer 

following the Owner's Manual.

●  Turn off the main power supply breaker before maintaining the 

unit.

●  Retain the Installation Manual and the Owner's Manual.

●  Specialized tools are required for the installation of 

air conditioner with new refrigerant (R32).

 

Caution

THIS AIR CONDITIONER ADOPTS THE NEW HFC 

REFRIGERANT(R32) WHICH DOES NOT DESTROY THE 

OZONE LAYER.

The  characteristics  of  R32  refrigerant  are:  it  is  a  hydrophilic, 

oxidizing membrane or oil, and its pressure is approx. 1.6 times 

higher than that of refrigerant R22. Accompanied with the new 

refrigerant,  refrigerating  oil  has  also  been  changed. Therefore, 

during  installation  work,  be  sure  that  water,  dust,  former 

refrigerant,  or  refrigerating  oil  does  not  enter  the  refrigerating 

cycle.

To prevent charging an incorrect refrigerant and refrigerating oil, 

the sizes of connecting sections of charging port of the main unit 

and installation tools are different from those for the conventional 

refrigerant.

This  means  that  exclusive  tools  are  required  for  the  new 

refrigerant (R32):

For  connecting  pipes,  use  new  and  clean  piping  designed  for 

R32, and please take care so that water or dust does not enter. 

In  addition,  do  not  use  the  existing  piping  because  there  are 

problems with pressure-resistance force and impurities in it.

Содержание KMF-80 DVR5

Страница 1: ...lly and keep it for future reference All the pictures in this manual are for illustration purpose only OWNER S INSTALLATION MANUAL Mini Amazon VRF ODU KMF 80 DVR5 KMF 100 DVR5 KMF 120 DVR5 KMF 140 DVR...

Страница 2: ...ll prevail The units comply with IEC 61000 3 12 NOTE a b c 0 00 1 00 2 00 3 00 4 00 5 00 6 00 7 00 8 00 5 15 25 35 45 55 65 Minimum room area Amin m2 Maximum refrigerant charge Mmax kg Figure 1 Curve...

Страница 3: ...2 1 601 4 803 5 871 64 2 731 7 7 7 7 130 3 892 7 7 7 7 23 1 637 4 911 6 003 65 2 752 7 7 7 7 135 3 966 7 7 7 7 24 1 672 5 017 6 132 66 2 773 7 7 7 7 140 4 039 7 7 7 7 25 1 706 5 12 6 258 67 2 794 7 7...

Страница 4: ...edure 10 6 Maintenance and Repair 11 6 1 About Refrigerant 11 6 2 After sales Service and Warranty 11 7 Troubleshooting 12 7 1 Air Conditioner Problems and Causes 12 7 2 Remote Controller Problems and...

Страница 5: ...Cable Connection 36 17 Configuration 37 17 1 Overview 37 17 2 Functions of SW1 and SW2 Buttons 37 17 3 S2 DIP Switch Function 37 17 4 Display Function 37 18 Commissioning 38 18 1 Overview 38 18 2 Thi...

Страница 6: ...nguages are translations 2 Safety Signs 2 1 Explanation of Safety Signs The precautions and things to note in this document involve very important information Please read them carefully DANGER Indicat...

Страница 7: ...d in a well ventilated location other than the occupied space such as in the open air For installation of the indoor unit refer to the corresponding installation and operation manual If an indoor unit...

Страница 8: ...rrespondence of the maximum refrigerant charge with the minimum room area Amin is shown in Figure 1 and Table 1 And different values are used for different indoor installation heights The VRF IDU inst...

Страница 9: ...ety checks are necessary to minimize the risk of ignition When repairing the refrigerating system comply with the following precautions prior to conducting work on the system shall be undertaken accor...

Страница 10: ...turer Other parts may result in the ignition of refrigerant which has leaked into the surroundings Check that cabling will not be subject to wear corrosion excessive pressure vibration sharp edges or...

Страница 11: ...has been cleaned and checked Equipment shall be labeled stating that it has been de commissioned and emptied of refrigerant The label shall be dated and signed Ensure that there are labels on the equi...

Страница 12: ...ctor or telephone earth wire CAUTION In order to avoid injury do not remove the fan guard of the outdoor unit Do not operate the air conditioner with wet hands An electric shock may happen Do not touc...

Страница 13: ...b a b b d c e d c e d c e Figure 4 1 Case 2 ODU is connected with VRF IDU and DHW kit DHW kit cannot be independently connected with the ODU a Heat pump outdoor unit b Refrigerant piping c VRF indoor...

Страница 14: ...t will automatically restart its operation when the power supply resumes 5 2 2 Cooling Heating DHW Fan Only and Auto The IDU of the air conditioning system can be controlled separately but the ODU can...

Страница 15: ...lic module will change and the electric heating of the DHW kit and the hydraulic module will also automatically start These measures are all aimed at preventing the outlet water temperature from falli...

Страница 16: ...s when it accidentally leaks and comes in contact with flammable substances generated by heaters and burning devices in the room Qualified maintenance personnel must verify that the point of leakage h...

Страница 17: ...ly Clean the air filter and external shell of the unit Please contact the installation or maintenance personnel to clean the air filter and external shell of the indoor unit The installation operation...

Страница 18: ...mpletely closed Leakage of refrigerant or lack of refrigerant Use heating devices Close doors and windows Check for leakage and correctly recharge refrigerant Table 7 2 Symptom Troubleshooting Solutio...

Страница 19: ...of refrigerant that occurs when it stops flowing or its flow changes Symptom 4 3 ODU When the tone of operating noise changes the noise is caused by the change of frequency Symptom 5 Dust comes out o...

Страница 20: ...installation work properly according to the Installation Manual Incorrect installation may result in water leakage electric shock or fire When the air conditioner is installed in a small room take ap...

Страница 21: ...that is sufficient to support the weight of the unit and with a width of at least 20 mm Images are for reference purpose only Please refer to the actual product The belt must have enough strength to...

Страница 22: ...of ODU HP Number of IDUs Combination ratio of VRF IDU Number of hydraulic modules 8 3 0 2 4 50 100 1 10 3 6 2 6 50 100 1 12 4 5 2 7 50 100 1 14 5 0 2 8 50 100 1 16 6 0 2 9 50 100 1 Case 4 ODU is indi...

Страница 23: ...e interferes your neighbour s everyday life A place that is too weak to bear the weight of the unit An uneven place Insufficient ventilation place A place near a private power station or high frequenc...

Страница 24: ...e wall of the building 2000 Caution 13 1 3 Requirements for ODU Installation in Cold Regions Protect the ODU from direct snowfall and be careful not to let the ODU become covered in snow Snow may accu...

Страница 25: ...ts using nuts with resin washers If the coating in the fastening area is peeled off the metal is prone to rusting Resin washer Caution Build a concrete base according to the specifications of the ODU...

Страница 26: ...al R32 does not contain fluorine does not destroy the ozone layer and does not deplete the ozone layer that protects the earth from harmful ultraviolet radiation However if it is released R32 can also...

Страница 27: ...rence for Refrigerant Piping Table 14 2 Permitted value Piping Piping Length Length of refrigerant pipe actual 60 m 8 kW 80 m 10 12 kW 100 m 14 16 kW L1 L2 L3 L4 L5 a b c d e f Piping length between t...

Страница 28: ...d gas side is 90 m as listed in Table 14 5 Caution Pipe diameter and branch joints between ODU and IDU according to downstream IDU DHW kit and hydraulic module need not to be included Table 14 6 Total...

Страница 29: ...as and liquid pipe size of a to f are 12 7 and 6 35 respectively Example 2 of refrigerant piping selection ODU N1 28 N3 28 N5 28 N6 60 N2 28 N4 28 A B D E C a b c d L1 L2 L5 L3 L4 e f Figure 14 3 The...

Страница 30: ...ze from a to c is respectively 12 7 and 6 35 According to Table 14 7 the pipe size d is respectively 15 9 and 9 52 14 2 Connecting Refrigerant Piping 14 2 1 Things to Note When Connecting the Refriger...

Страница 31: ...Gas pipe Provided on site Liquid pipe Provided on site Side out pipe please remove the L shaped metal plate otherwise wiring cannot be completed Back out pipe please wipe off the bracket rubber beside...

Страница 32: ...t be used for flushing Use of such gases may result in fire or explosion CAUTION The liquid and gas sides must be flushed simultaneously The flushing procedure is as follows 1 Cover the inlets and out...

Страница 33: ...vacuum drying once the gas tightness test is complete reduce the system pressure to 0 5 0 8MPa and leave the system pressurized until ready to carry out the vacuum drying procedure Gas side of stop va...

Страница 34: ...on the installation environment 14 3 6 1 Selection of insulation material thickness Condensed water may form on the surface of the insulation layer Table 14 10 Piping size Humidity 80 RH Thickness Hu...

Страница 35: ...No 0 14 No Yes 0 333 16 No Yes 0 380 Table 15 4 Total additional charge R is equal to the sum of R1 R2 and R3 Calculate the refrigerant charge according to the following formula R R1 R2 R3 Determine t...

Страница 36: ...ker 3 The wire carrying capacity is for reference purposes only The modification factor of the actual carrying ca pacity depends on cable type and length lead through method and the environment for ca...

Страница 37: ...main circuit breaker or safety device that can disconnect all polarities must be installed and it can be completely disconnected when the voltage gets too high Wiring must be carried out in strict ac...

Страница 38: ...ompleted by professionals Communication wires between IDUs including multiple IDUs DHW kits and hydraulic modules and ODUs shall only be led out from ODUs When a single communication wire is not long...

Страница 39: ...14 1 and EN 55014 2 Caution Communication Wiring Diagram when ODU is connected with VRF IDU and DHW kit Figure 16 5 Communication wire Power cable ODU L2 Power distribution cabinet Power distribution...

Страница 40: ...be used Connect the shielding nets at both ends of the shielded cable to the sheet metal of the electrical control box Applicable standards EN 55014 1 and EN 55014 2 Caution Communication Wiring Diagr...

Страница 41: ...he ground and you must turn off the power supply when you are connecting the ground line before you connect the power cable Before installing the screws you must first comb through the path along the...

Страница 42: ...nabled priority default 1 2 21 3 Heating mode priority 1 2 21 3 In response to heating mode only 17 4 Display Function There are buttons 8 16 kW for SW2 on the ODU check board main control board The d...

Страница 43: ...wing items first After all following checks have been completed you must shut down the unit This is the only way to start the unit again Table 18 1 Installation Check if the unit is installed correctl...

Страница 44: ...ect to automatic diagnosis during the test run If the ODU cannot start or stops abnormally during the test run conduct troubleshooting according to the table of error codes and perform the test run ag...

Страница 45: ...12 Cooling ambient temperature lower than 16 C No EP 13 DC bus voltage protection No F1 14 L L0 L1 fault occurring 3 times in 1 hour Yes H4 15 Online IDU quantity decrease increase No H7 16 Radiator...

Страница 46: ...arm where refrigerant is usually stored IDU IDU Refrigerant has leaked throughout the room Refrigerant is used out A Ventilation opening Figure 19 1 Table 19 2 Model Factory charge Refrigerant kg tons...

Страница 47: ...onent name 1 Compressor 2 Muffler 3 High pressure switch 4 4 way valve ST1 5 Fan 6 Heat exchanger 7 Electronic expansion valve EXVA 8 Stop valve liquid side 9 Stop valve gas side 10 Gas liquid separat...

Страница 48: ...or 2 Muffler 3 High pressure switch 4 4 way valve ST1 5 Fan 6 Heat exchanger 7 Electronic expansion valve EXVA 8 Stop valve liquid side 9 Stop valve gas side 10 Gas liquid separator 11 Low pressure sw...

Страница 49: ...e 1 Compressor 2 Muffler 3 High pressure switch 4 4 way valve ST1 5 Fan 6 Heat exchanger 7 Electronic expansion valve EXVA 8 Stop valve liquid side 9 Stop valve gas side 10 Gas liquid separator 11 Low...

Страница 50: ...me 1 Compressor 2 Oil separator 3 High pressure switch 4 4 way valve ST1 5 Fan 6 Heat exchanger 7 Electronic expansion valve EXVA 8 Stop valve liquid side 9 Stop valve gas side 10 Gas liquid separator...

Страница 51: ...rage season A Annual electricity consumption in heating QHE average season kWh a 1821 Design load in heating mode Pdesignh kW 5 20 Declared capacity at reference design condition heating average seaso...

Страница 52: ...nual electricity consumption in heating QHE average season kWh a 1984 Design load in heating mode Pdesignh kW 5 60 Declared capacity at reference design condition heating average season kW 9 00 Back u...

Страница 53: ...Pdc 7 20 kW Tj 35 C EERd 3 23 Tj 30 C Pdc 5 31 kW Tj 30 C EERd 5 30 Tj 25 C Pdc 3 41 kW Tj 25 C EERd 8 50 Tj 20 C Pdc 3 10 kW Tj 20 C EERd 9 90 Degradation co efficient for air conditioners Cdc 0 25...

Страница 54: ...W Tj 2 C COPd 3 85 Tj 7 C Pdh 1 80 kW Tj 7 C COPd 5 10 Tj 12 C Pdh 0 80 kW Tj 12 C COPd 6 90 Tbiv bivalent temperature Pdh 5 20 kW Tbiv bivalent temperature COPd 2 10 TOL operation temperature Pdh 5 2...

Страница 55: ...00 kW Tj 35 C EERd 3 06 Tj 30 C Pdc 6 70 kW Tj 30 C EERd 5 10 Tj 25 C Pdc 4 30 kW Tj 25 C EERd 7 70 Tj 20 C Pdc 3 37 kW Tj 20 C EERd 10 50 Degradation co efficient for air conditioners Cdc 0 25 Power...

Страница 56: ...C COPd 3 80 Tj 7 C Pdh 1 94 kW Tj 7 C COPd 5 10 Tj 12 C Pdh 0 87 kW Tj 12 C COPd 6 30 Tbiv bivalent temperature Pdh 5 60 kW Tbiv bivalent temperature COPd 2 20 TOL operation temperature Pdh 5 60 kW T...

Страница 57: ...Pdc 12 30 kW Tj 35 C EERd 3 20 Tj 30 C Pdc 9 00 kW Tj 30 C EERd 5 20 Tj 25 C Pdc 5 80 kW Tj 25 C EERd 10 00 Tj 20 C Pdc 4 10 kW Tj 20 C EERd 15 00 Degradation co efficient for air conditioners Cdc 0...

Страница 58: ...kW Tj 2 C COPd 4 13 Tj 7 C Pdh 2 70 kW Tj 7 C COPd 6 20 Tj 12 C Pdh 1 20 kW Tj 12 C COPd 8 70 Tbiv bivalent temperature Pdh 7 80 kW Tbiv bivalent temperature COPd 2 10 TOL operation temperature Pdh 7...

Страница 59: ...Pdc 14 00 kW Tj 35 C EERd 3 23 Tj 30 C Pdc 10 30 kW Tj 30 C EERd 5 30 Tj 25 C Pdc 6 60 kW Tj 25 C EERd 9 10 Tj 20 C Pdc 6 00 kW Tj 20 C EERd 11 10 Degradation co efficient for air conditioners Cdc 0...

Страница 60: ...kW Tj 2 C COPd 4 45 Tj 7 C Pdh 3 46 kW Tj 7 C COPd 6 00 Tj 12 C Pdh 1 54 kW Tj 12 C COPd 7 50 Tbiv bivalent temperature Pdh 10 00 kW Tbiv bivalent temperature COPd 2 30 TOL operation temperature Pdh 1...

Страница 61: ...Pdc 15 50 kW Tj 35 C EERd 3 02 Tj 30 C Pdc 11 40 kW Tj 30 C EERd 4 60 Tj 25 C Pdc 7 30 kW Tj 25 C EERd 8 60 Tj 20 C Pdc 5 20 kW Tj 20 C EERd 12 00 Degradation co efficient for air conditioners Cdc 0...

Страница 62: ...kW Tj 2 C COPd 3 85 Tj 7 C Pdh 3 81 kW Tj 7 C COPd 6 65 Tj 12 C Pdh 1 69 kW Tj 12 C COPd 8 50 Tbiv bivalent temperature Pdh 11 00 kW Tbiv bivalent temperature COPd 2 20 TOL operation temperature Pdh 1...

Страница 63: ...iciency 0 211 10 2 Flow rate s at optimum energy efficiency m3 h 4891 10 3 Pressure s at optimum energy efficiency Pa 50 11 Rotations per minute R P M at the optimum energy efficiency point 800r min 1...

Страница 64: ...rgy efficiency 0 198 10 2 Flow rate s at optimum energy efficiency m3 h 4886 10 3 Pressure s at optimum energy efficiency Pa 50 11 Rotations per minute R P M at the optimum energy efficiency point 800...

Страница 65: ...ciency 0 288 10 2 Flow rate s at optimum energy efficiency m3 h 5615 10 3 Pressure s at optimum energy efficiency Pa 60 11 Rotations per minute R P M at the optimum energy efficiency point 900r min 12...

Страница 66: ...rgy efficiency 0 294 10 2 Flow rate s at optimum energy efficiency m3 h 5448 10 3 Pressure s at optimum energy efficiency Pa 65 11 Rotations per minute R P M at the optimum energy efficiency point 900...

Страница 67: ...16127000005207...

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