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Multi Variable Air Conditioners Ducted Type Indoor Unit 

20 

6 Routine Maintenance 

 

 

(1)  Do turn off the unit and cut off the main power supply when cleaning the air conditioner to avoid electric 

shock or injury.   

(2)  Stand at solid table when cleaning the unit. 

(3)  Do not clean the unit with hot water whose temperature is higher than 45°C to prevent fade or deformation. 

(4)  Do not dry the filters by fire, or it may catch fire or become deformed. 

(5)  Clean the filter with a wet cloth dipped in neutral detergent. 

(6)  Please contact after-sales service staff if there is abnormal situation. 

6.1 Cleaning of Filter 

(1)  Remove the filters from inlet of IDU. Use a vacuum cleaner to remove dust. If the filters 

are dirty, wash them with warm water and mild detergent, and dry the filters in the shade. 

(2)  If the unit used in the environment with much dust, please clean it regularly. (Usually once 

every two weeks). 

6.2 Maintenance before the Seasonal Use 

(1)  Check if the air inlet and air outlet of indoor and outdoor unit are blocked. 

(2)  Check if securely grounded. 

(3)  Check if all the power cord and communication cable are securely connected. 

(4)  Check if any error code displayed after energized.   

6.3 Maintenance after the Seasonal Use 

(1)  Set the unit in fan mode for half a day in a sunny day to dry the inner part of unit; 

(2) 

When the unit won’t be used for a long time, please cut off power supply for energy saving; 

the  characters  on  the  wired  controller  screen  will  disappear  after  cutting  off  the  power 

supply. 

 

 

Summary of Contents for ULTRA heating GMVND07PLS/A-T

Page 1: ...ginal Instructions Commercial Air Conditioners Multi Variable Air Conditioners Ducted Type Indoor Unit Models GMV ND07PLS A T U GMV ND09PLS A T U GMV ND12PLS A T U GMV ND14PLS A T U GMV ND18PLS A T U...

Page 2: ...eration of this unit please read and follow the instructions carefully 4 During operation total capacity of indoor units should not exceed the total capacity of outdoor units Otherwise poor effect of...

Page 3: ...nd knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be supervised to ensure that they do not pl...

Page 4: ...nage System Testing 9 4 4 Installation of Air Duct 12 4 5 Installation of Wired Controller 15 5 Wiring Work 15 5 1 Connection of Wire and Patch Board Terminal 15 5 2 Power Cord Connection 16 5 3 Conne...

Page 5: ...piping and wiring are correct to avoid water leakage refrigerant leakage electric shock or fire etc 9 Do not insert fingers or objects into air outlet inlet grille 10 Open the door and window and kee...

Page 6: ...onous gas will emerge if the refrigerant gas meets fire 26 Volatile liquid such as diluent or gas will damage the unit appearance Only use soft cloth with a little neutral detergent to clean the outer...

Page 7: ...together with the hanger bolt for installing the unit 5 M10 Nut M10X8 4 Nut 4 To be used together with the hanger bolt for installing the unit 6 M10 Washer Spring Washer M10X2 6 4 To be used together...

Page 8: ...ence and noise Even if the distance is 1m 39 3 8 in when there is strong electric wave noise may still occur Unit mm in Fig 3 2 1 1 The unit shall be installed in accordance with national standards or...

Page 9: ...Indoor Unit and Outdoor Unit Fig 3 3 2 Material Type Total Length L m ft of Communication Cable between Indoor Unit and Indoor Outdoor Unit Wire size mm2 AWG Material Standard Remarks Light Ordinary p...

Page 10: ...ies please lower the capacity appropriately according to the specifications of power cord and air switch provided by manufacturer 4 Install cut off device near the unit The minimum distance between ea...

Page 11: ...15 24 1 4 200 7 7 8 121 4 3 4 928 36 1 2 161 6 3 8 980 38 5 8 GMV ND22 PLS A T U 4 1 2 Suspend the indoor unit 1 Drill bolt holes and install bolts 1 Stick the reference cardboard on the installation...

Page 12: ...r return outlet or air outlet you can need to reinforce the ceiling to prevent vibration For detailes please consult user or builder If the strength of the ceiling is not good please install a beam br...

Page 13: ...according to the following fig and arrange insulation to the drainage pipe Improper installation may lead to water leakage and damp the furniture and other things in the room 4 You can buy normal hard...

Page 14: ...onnecting several drain pipes follow the instruction as indicated in Fig 4 3 4 Choose the drain collecting pipe that matches with unit capacity Fig 4 3 4 5 Install the trap as shown in following Fig 4...

Page 15: ...he raising pipe is vertical with the unit the raising height should be less than C Unit mm in Fig 4 3 9 Unit mm in Model A B C GMV ND07PLS A T U GMV ND09PLS A T U GMV ND12PLS A T U GMV ND14PLS A T U G...

Page 16: ...kage occur 3 It is strongly recommend to do the drain test before ceiling decoration Fig 4 3 11 4 4 Installation of Air Duct Note There should be insulating layer on air out duct air return duct and f...

Page 17: ...een 3 Canvas Duct 7 Main Supply Air Duct 4 Return Air Inlet 8 Supply Air Outlet 2 Installation of Circular Duct Fig 4 4 2 No Name No Name 1 Return Air Duct 6 Transition Pipe 2 Canvas Duct 7 Supply Air...

Page 18: ...bottom as shown in Fig 4 4 5 Fig 4 4 5 2 If the bottom return air is desired just change the place of the rectangular flange and the return air cover plate 3 Connect one end of the return air duct to...

Page 19: ...ic shock 2 Please carefully read the wiring diagram before carry out the wiring work incorrect wiring could cause malfunction or even damage the unit 3 The unit should be powered by independent circui...

Page 20: ...e ring tongue terminal and tighten by crimping tool 4 Use the screwdriver for tightening the terminal Unit mm in Fig 5 1 1 Fig 5 1 2 5 2 Power Cord Connection NOTICE Every unit should be equipped with...

Page 21: ...n in fig 5 3 2 terminal resistor is provided with each ODU 5 4 Connect Communication Wire of Wired Controller 1 Open electric box cover of indoor unit 2 Let the communication wire go through the rubbe...

Page 22: ...t must be set as master one and slave one 4 One wired controller can control 16 indoor unitS in maximum at the same time as shown in fig 5 5 1 1 The type of indoor units must be the same if they are c...

Page 23: ...Multi Variable Air Conditioners Ducted Type Indoor Unit 19 Fig 5 5 1...

Page 24: ...e a vacuum cleaner to remove dust If the filters are dirty wash them with warm water and mild detergent and dry the filters in the shade 2 If the unit used in the environment with much dust please cle...

Page 25: ...epair 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 Troubleshoo...

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