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Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit

 

22 

8 Troubleshooting 

The air conditioner is not expected to be serviced by users. Incorrect repair may cause 

electric shock or fire, so please contact an authorized service center for professional service. 
The following checks prior to contact may save your time and money. 

Phenomenon 

Troubleshooting 

The unit can’t start up 

Power supply is not connected 

Circuit breaker tripping caused by leakage of electricity 

Input voltage is too low 

Operation button is closed 

Control loop is abnormal 

The unit stops after running for a 

while 

There is obstacle in front of the condenser 

Control loop is abnormal 

Set the unit in cooling mode when outdoor ambient temperature 

is higher than 43°C 

Poor cooling effect 

The filter is dirty 

Too heavy heat load of room(e.g. too many people) 

Door or window is open 

Inlet and outlet of IDU are blocked 

Setting temperature is too high 

The performance of room temperature sensor is getting worse 

Poor heating effect 

The filter is dirty 

Door or window is open 

Setting temperature is too low 

Refrigerant leakage 

Outdoor ambient temperature is lower than -5°C 

Abnormality of control circuit 

Indoor fan doesn’t start up during 

heating 

Placing position of tube temperature sensor head is not suitable 

Tube temperature sensor head isn't inserted well 

Wiring of tube temperature sensor head is broken 

Capacitor is leaking electricity 

Note: 

If air conditioner still fails to work normally after checking and handling as described above, 

please stop using it immediately and contact local service center for assistance. 

 

Содержание GMV-ND112ZD/B-T

Страница 1: ...Conditioners Multi Variable Air Conditioners Floor Ceiling Type Indoor Unit Models GMV ND28ZD B T GMV ND36ZD B T GMV ND50ZD B T GMV ND56ZD B T GMV ND63ZD B T GMV ND71ZD B T GMV ND90ZD B T GMV ND112ZD...

Страница 2: ...le or explosive environment or the place with special requirements such as kitchen Otherwise it will affect the normal operation or shorten the service life of the unit or even cause fire hazard or se...

Страница 3: ...turer 3 After verification the defect of product is directly caused by corrosive gas 4 After verification defects are due to improper operation during transportation of product 5 Operate repair mainta...

Страница 4: ...on 11 4 3 Drainage Pipe Installation and Drainage System Testing 11 4 4 Wired Controller Installation 15 5 Wiring Work 15 5 1 Connection of Wire and Patch Board Terminal 15 5 2 Power Cord Connection 1...

Страница 5: ...ual carefully before turning on or repairing the unit Installation should be conducted by the dealer or qualified personnel Please do not attempt to install the air conditioner by yourself Improper in...

Страница 6: ...een turned off and the power has been cut off otherwise it may cause electric shock or injury Never spray or flush water towards the air conditioner otherwise malfunction or electric shock may happen...

Страница 7: ...irement current shall be referred to the table of Dimension of power cord and capacity of air switch in Section 3 4 and safety class of construction is I Correct Disposal of this Product This marking...

Страница 8: ...sories according to the requirement No Name Appearance Q ty Usage 1 Remote Controller 1 2 To control the indoor unit 2 Special Nut 2 GMV ND28 140ZD B T 1 GMV ND160ZD B T 3 Corrugated Pipe 1 GMV ND160Z...

Страница 9: ...far from heat sources flammable or explosive gas or smog spread in the air 6 The indoor unit outdoor unit power cord and connection electricity wire should be at least 1m from television and radio in...

Страница 10: ...Type Total Length of Communication Line between Indoor Unit and Wired Controller L m Wire Size mm2 Material Standard Remarks Light Ordinary polyvinyl chloride sheathed cord 60227 IEC 52 60227 IEC 53...

Страница 11: ...reaker and power cord specification in above sheet are based on max power max current of the unit The power cord specification in above sheet is based on ambient temperature of 40 C The circuit breake...

Страница 12: ...Drainage pipe Outer Diameter wall thickness mm Outer diameter of connection pipe mm Liquid pipe Gas pipe GMV ND28ZD B T 870 235 812 280 665 17 1 75 6 35 9 52 GMV ND36ZD B T GMV ND50ZD B T 6 35 12 7 G...

Страница 13: ...2 4 Put the hanger bolt into the clasp of the indoor unit and tighten screws on the hanger to prevent the indoor unit from moving as shown in Fig 4 1 2 3 5 Reinstall and tighten the right and left si...

Страница 14: ...m Fig 4 1 2 3 Fig 4 1 2 4 4 1 3 Leveling The water level test must be done after installing the indoor unit to make the unit is horizontal as shown in Fig 4 1 3 Note Adjust the height of the unit to m...

Страница 15: ...sponge and then tie them firmly with tape 4 3 Drainage Pipe Installation and Drainage System Testing 4 3 1 Notice for Installation of Drainage Pipe 1 It is not allowed to connect the condensate drain...

Страница 16: ...ine should be about 100mm lower than the drainage port of each unit In this case thicker pipes should be applied Fig 4 3 1 1 9 Connect the drainage pipe properly as shown in Fig 4 3 1 2 Fig 4 3 1 2 4...

Страница 17: ...n of drainage pipe joints Fig 4 3 2 2 No 2 Connection of downspout elbow Fig 4 3 2 3 No 3 Inserting horizontal pipe connection Fig 4 3 2 4 Fig 4 3 2 2 Fig 4 3 2 3 Fig 4 3 2 4 8 Drain pipes should have...

Страница 18: ...d Inject approximately 1L purified water to drain pan from air vent ensure that not to splash the water over the electrical components e g water pump etc 2 During the test please carefully check the d...

Страница 19: ...o related regulations and electrical standards Crimp terminal or single wire must be applied for all wires Keep cable away from refrigerant piping compressor and fan motor Do not change the wiring ins...

Страница 20: ...be equipped with a circuit breaker for short circuit and overload protection During operation all indoor units connected to the same outdoor unit system must be kept energized status Otherwise the uni...

Страница 21: ...g 5 3 2 4 Fix the communication cable with clamp of electric box 5 For more reliable communication make sure connect the downstream IDU of the communication bus terminal D1 and D2 as shown in Fig 5 3...

Страница 22: ...g 5 4 2 5 5 Wiring Instructions of Wired Controller and Indoor Units Network 1 Communication wire of indoor unit and outdoor unit or indoor unit is connected to D1 D2 2 Wired controller is connected t...

Страница 23: ...y are controlled by the same wired controller When the indoor unit is controlled by two wired controllers the addresses of the two wired controllers should be different through address setting Address...

Страница 24: ...n neutral detergent Please contact after sales service staff if there is abnormal situation 6 1 Maintenance before the Seasonal Use 1 Check if the air inlet and air outlet of indoor and outdoor unit a...

Страница 25: ...2 Sensor Error L7 No Master Indoor Unit Error d6 Outlet Pipe Temperature Sensor Error C0 Communication Error L8 Power Insufficiency Protection d7 Humidity Sensor Error AJ Filter Cleaning Reminder L9 Q...

Страница 26: ...outdoor ambient temperature is higher than 43 C Poor cooling effect The filter is dirty Too heavy heat load of room e g too many people Door or window is open Inlet and outlet of IDU are blocked Setti...

Страница 27: ......

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