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 Air Conditioner Service Manual

 

 

Inverter air conditioner 

 

Service Manual 

 
 
 

Models 

'6.,'7:'26.,'7:

             

'6.,'7:'26.,'7:

           

 

'6.,'7:'26.,'7:

'6.,'7:'26.,'7:

'6.,'4:'26.,'4:

'6.,'4:'26.,'4:

'6.,'4:'26.,'4:

'6.,'4:'26.,'4:

 
 
 
 

CONTENTS 

 

1.  Important Notice

2. 

Product Dimensions

 

3

. 

Refrigeration cycle diagram

 

4

. 

Operation details

5

. 

 Wiring diagram

 

6

. 

Explosion view and parts

 

7

. 

Precaution 

 

8

. 

 

Names of parts

 

9

. 

Installation

10.  Introduction R32/R290 air conditioner installation 

 

11

. 

Trouble shooting

 

 

 
 
 
 
 
 
 
 
 
 

DAITSU

DAITSU

Summary of Contents for DS-9KIDT

Page 1: ...6 4 26 4 6 4 26 4 6 4 26 4 6 4 26 4 CONTENTS 1 Important Notice 2 Product Dimensions 3 Refrigeration cycle diagram 4 Operation details 5 Wiring diagram 6 Explosion view and parts 7 Precaution 8 Names...

Page 2: ...le for the interpretation of this information nor can it assume any liability in connection with its use The information specifications and parameter are subject to change due to technical modificatio...

Page 3: ...LU RQGLWLRQHU 6HUYLFH 0DQXDO 2 Product Dimensions Indoor Unit Outdoor Unit 0RGHO QGRRU XQLW 2XWGRRU XQLW 6 7 26 7 6 7 26 7 6 7 26 7 6 7 26 7 6 4 26 4 6 4 26 4 6 4 26 4 6 4 26 4...

Page 4: ...mm 4 0 75mm 4 0 75mm Capillary Capillary Electronic expansion valve Electronic expansion valve Gas Inches 3 8 3 8 3 8 1 2 Liquid Inches 1 4 1 4 1 4 1 4 Others m 9 16 15 23 20 35 27 45 m 25 25 25 25 m...

Page 5: ...y Compressor Accumulator Heat exchange condenser Heat exchange Evaporator 2 way valve Liquid side 3 way valve Gas side Cooling Heating Gas side 3 way valve Liquid side 2 way valve Heat exchange Evapor...

Page 6: ...in 10 seconds the remote controller is preset as Heat Pump automatically LOCK UNLOCK When you press the buttons MODE and TIMER at the same time the remote controller will be locked all buttons of the...

Page 7: ...r or load of compressor is abnormity the air conditioner will shut down and show error code 7 IPM module protection IPM module has high temperature over current protection itself if there is signal fe...

Page 8: ...it operates in cooling mode the set temperature ST is RT 2 After that t he system will operate in cooling mode with lowest fan speed for 30 minutes and then change to middle speed for 30seconds as a c...

Page 9: ...s c Outdoor heat exchanger Temperature OPT is continuously less than 3 while the unit runs for more than 120 minutes and OPT is keeping below 2 for more than 3 minutes Before the air con comes into de...

Page 10: ...indoor unit for function test NOTE Do not press the EMERGEMCY Operation switch during normal operation 8 AUTO RESTART Function Option While air conditioner is operating in one mode all of its operatio...

Page 11: ...z Outdoor failure display There is a LED on outdoor power board it blinks 1s ON and 1s OFF while compressor standby and it always light ON while compressor running If there is failure happened on ODU...

Page 12: ...pressor overheat fault compressor top switch 9 Short circuit open circuit fault of outdoor temperature sensor 10 Short circuit open circuit fault of outdoor heat exchanger temperature sensor 11 Short...

Page 13: ...on under over voltage category III conditions and these means must be incorporated in the fixed wiring in accordance with the wiring rules z The air conditioner must be installed by professional or qu...

Page 14: ...e an excessive accumulation of dust or waste on the inner parts of the device with possible subsequent failures z The user is responsible for having the appliance installed by a qualified technician w...

Page 15: ...r could contain gas oil or sulphur or near sources of heat z This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experi...

Page 16: ...2 Air filter 3 Special filter option 4 Display PCB 5 Vertical vane 6 Horizontal vane 7 Remote controller 8 Names of parts Outdoor unit No Name 8 Air outlet grille 9 Electronic box cover 10 2 way valve...

Page 17: ...J 0D OHQJWK P GGLWLRQDO UHIULJHUDQW DOFXODWLRQ J J P P 6 7 26 7 6 4 26 4 J P 6 7 26 7 6 4 26 4 J P 6 7 26 7 6 4 26 4 J P 6 7 26 7 6 4 26 4 J P Connecting cables 7KH SRZHU FRUG VKRXOG EH VHOHFWHG DFFRU...

Page 18: ...HVVLEOH OUTDOOR UNIT l R QRW LQVWDOO WKH RXWGRRU XQLW QHDU VRXUFHV RI KHDW VWHDP RU IODPPDEOH JDV l R QRW LQVWDOO WKH XQLW LQ WRR ZLQG RU GXVW SODFHV l R QRW LQVWDOO WKH XQLW ZKHUH SHRSOH RIWHQ SDVV 6...

Page 19: ...e flange through the hole in the wall to keep the latter intact and clean The hole must slope downwards towards the exterior Note Keep the drain pipe down towards the direction of the wall hole otherw...

Page 20: ...not bend the pipe more than three times at one point z When extending the rolled pipe straighten the pipe by unwinding it gently as shown in the picture 9 2 6Connections to the indoor unit 1 Remove th...

Page 21: ...ening procedures described for the indoor unit Note If the tightening torque is not sufficient there will probably be some leakage With excessive tightening torque there will also be some leakage as t...

Page 22: ...intaining or scrapping an air conditioner l When filling the combustible refrigerant any of your rude operations may cause serious injury or injuries to human body or bodies and object or objects l A...

Page 23: ...auge used for Refrigerant 22 can be used for Refrigerants R290 and R161 the pressure gauge used for R410A can be used for Refrigerant 32 Fire Extinguisher It is necessary to carry fire extinguisher s...

Page 24: ...ring the maintenance it is a must to immediately take forced ventilation and plug up the leak source l If the product is damaged to the extent that it is a must to open the refrigerating system for ma...

Page 25: ...it is a must to confirm that the refrigerating system has been drained and the system has been cleaned and ensure that there has been no refrigerant in the outdoor unit l It is necessary to close the...

Page 26: ...vacuating the affected personnel urgently from the location l It is necessary to inform near residents of evacuating for over 20 meters from the location make an alarm call set the emergency area and...

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