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Multi Variable Air Conditioners Cassette 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 GMV-ND07T/A-T(U)

Page 1: ...T A T U GMV ND18T A T U GMV ND24T A T U GMV ND30T A T U GMV ND36T A T U GMV ND42T A T U GMV ND48T A T U Thank you for choosing Air Conditioners please read this owner s manual carefully before operati...

Page 2: ......

Page 3: ...rect operators or maintainers should well keep this manual 6 If this unit fails to operate normally please contact our service center as soon as possible and provide the following information 1 Conten...

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Page 5: ...Drainage System Testing 10 4 4 Panel Installation 13 4 5 Installation of Wired Controller 14 5 Wiring Work 15 5 1 Connection of Wire and Patch Board Terminal 15 5 2 Power Cord Connection 16 5 3 Conne...

Page 6: ...et the room temperature too low and keep the temperature difference between indoor and outdoor unit within 5 41 18 User is not allowed to repair the unit Fault service may cause electric shock or fire...

Page 7: ...ents No Name Air Outlet Filter Air Inlet Grile Fittings Louver Drainage Pipe 2 2 Rated Working Condition Indoor Side Condition Outdoor Side Condition Dry Bulb Temp C Wet Bulb Temp C Dry Bulb Temp Wet...

Page 8: ...2 paper pattern for installation 1 Locate the drill hole on ceiling 3 Tapping screw with washer 4 Fix paper pattern 4 Washer fixing plate 4 Prevent the washer from falling off 5 Drain Hose Assembly 1...

Page 9: ...7 1 2in Install then unit higher than 2 5 m 98 3 8in to avoid accidental touching 7 Keep the unit away from heating source inflammable gas or smoke 8 This is a concealed ceiling type unit 9 Indoor uni...

Page 10: ...ft 2 The cord shall be Circular cord the cores shall be twisted together 3 If unit is installed in places with intense magnetic field or strong interference it is necessary to use shielded wire 3 3 2...

Page 11: ...MV ND48T A T U 1 15 1 An all pole disconnection switch having a contact separation of at least 3mm 1 8 in in all poles should be connected in fixed wiring 2 The circuit breaker and power cord specific...

Page 12: ...950 37 3 8 890 35 1 16 840 33 1 16 680 26 3 4 780 30 11 16 4 1 2 Suspend the Indoor Unit 1 Drill bolt holes and install bolts 1 Stick the reference cardboard on the installation position drill 4 hole...

Page 13: ...the hanger bracket The washer fixing plate will prevent the washer from falling 3 The usage of paper pattern Refer to paper pattern of installation for ceiling opening dimension The center of ceiling...

Page 14: ...d then tighten the flaring nut with hand as shown in fig 4 2 2 Tighten the flaring nut with torque wrench Fig 4 2 3 Use pipe bend when bending the pipe and the bending angle should not be too small 4...

Page 15: ...e hole with glue 5 When the drainage pipelines are used for several units the position of pipeline should be about 100mm 4 in lower than the drainage port of each unit In this case thicker pipes shoul...

Page 16: ...raising height should be less than C Fig 4 3 3 Model A mm in B mm in C mm in 07 170 6 3 4 830 32 5 8 780 30 3 4 09 48 220 8 5 8 780 30 3 4 730 28 3 4 10 Drain pipes should have a downward slope of at...

Page 17: ...e electrical components e g water pump etc 2 In case of commissioning finished please energize the IDUs and switch to cooling or dry mode meanwhile the water pump operates you can check the draining t...

Page 18: ...decorative panel installation could cause the following problems Fig 4 4 1 2 Ensure that its clearance free between decoration panel and ceiling board after installation if not please adjust the body...

Page 19: ...lle from panel make a wiring connection of signal receiver Notices that the connection wire not stuck in the middle of body and panel or may cause air leakage and lead to condensation water drop 4 Tig...

Page 20: ...tor 7 The communication wires should be separated from power cord and connection wire between indoor unit 8 Adjust the static pressure via wired controller according to site circumstance 5 1 Connectio...

Page 21: ...he wiring through holes 3 Connect the power cord to terminal L1 L2 4 Fix the power card with wiring clamp 5 The wire diameter of power cord can t be less than 18AWG 5 3 Connection of Communication Wir...

Page 22: ...rminal H1 and H2 of indoor 4 bit wiring board 4 Fix the communication wire with wire clip on the electric box 5 Wiring instructions of remote receiving light board and wired controller 1 Wired control...

Page 23: ...ust 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 fig5 5 1 The type of indoor units must be the same if they are control...

Page 24: ...Multi Variable Air Conditioners Cassette Type Indoor Unit 19 Fig 5 5...

Page 25: ...se 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 cl...

Page 26: ...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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Page 28: ...0DWHULDO 6XSSO QF GED 3UR Add QGXVWU YH RQWDQD 86 Tel E mail ZZZ DFSUR FRP...

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