Mitsubishi Electric MU-GD08ND Service Manual Download Page 1 | Manualshive

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CONTENTS

1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················3
3. SPECIFICATION·················································4
4. OUTLINES AND DIMENSIONS ·························5
5. WIRING DIAGRAM ············································6
6. REFRIGERANT SYSTEM DIAGRAM ················7
7. PERFORMANCE CURVES ································9
8. TROUBLESHOOTING······································11
9. DISASSEMBLY INSTRUCTIONS ····················12

SPLIT-TYPE, AIR CONDITIONERS

MU-GD08ND-

MU-GD10ND-

MU-GD12ND-

C1

C1

C1

TM

Indoor unit service manual

MS-GD•ND Series (TBH014)

No. TBH016

SERVICE MANUAL

Wireless type
Models

OUTDOOR UNIT

NOTE:
• RoHS compliant products have <G> mark on the spec name plate.

PARTS CATALOG (TBB016)

MU-GD08ND-

C1

1
2
3
...
»

Summary of Contents for MU-GD08ND

Page 1: ...M 7 7 PERFORMANCE CURVES 9 8 TROUBLESHOOTING 11 9 DISASSEMBLY INSTRUCTIONS 12 SPLIT TYPE AIR CONDITIONERS MU GD08ND MU GD10ND MU GD12ND C1 C1 C1 TM Indoor unit service manual MS GD ND Series TBH014 No TBH016 SERVICE MANUAL Wireless type Models OUTDOOR UNIT NOTE RoHS compliant products have G mark on the spec name plate PARTS CATALOG TBB016 MU GD08ND C1 ...

Page 2: ...r heat exchanger has been changed 4 Compressor capacitor has been changed 5 Fan motor capacitor has been changed MU A12ND C1 MU GD12ND C1 1 Compressor has been changed RH174NHNT RH189NRAT 2 Outdoor fan motor has been changed RA6N30 BA RA6V33 MC 3 Compressor capacitor has been changed 4 Fan motor capacitor has been changed MU A10ND C2 MU GD10ND C1 1 Model name changed ...

Page 3: ...ES AND FUNCTIONS Air outlet Drain outlet Piping Drain hose Air inlet back and side MU C08VC MU C10VC MU C13VC MU C18VC Air inlet back and side Piping Drain hose Air outlet Drain outlet MU GD08ND MU GD10ND MU GD12ND ...

Page 4: ...P 3 24 3 21 3 12 3 12 2 98 2 98 Compressor Model KS098NARC RH145NHNT RH189NRAT Output W 500 700 900 Winding resistance at 20 Ω C R 3 54 C S 4 90 C R 2 74 C S 3 78 C R 1 50 C S 2 33 Fan motor Model RA6V21 BE RA6N21 AB RA6V33 MC Winding resistance at 20 Ω WHT BLK 252 BLK RED 278 WHT BLK 384 BLK RED 259 WHT BLK 141 BLK RED 175 Dimensions WxHxD mm 684x540x255 800x550x285 Weight kg 22 34 35 Special rem...

Page 5: ...2 2 17 5 243 Bolt pitch for installation 500 684 61 105 Handle 2 holes 10 16 40 Unit mm Unit mm 0 1 69 800 302 5 500 Bolt pitch for installation 150 22 3 Handle 0 5 5 0 8 2 5 4 6 1 5 9 9 170 5 23 Service panel Service port 5 8 2 5 4 4 3 4 4 400 Air in Air out 5 7 1 r o f h c t i p t l o B n o i t a l l a t s n i 5 2 3 4 0 3 40 Liquid refrigerant pipe joint Refrigerant pipe flared 6 35 Gas refriger...

Page 6: ...6 WIRING DIAGRAM 5 MU C08VC MU C10VC MU C13VC MU GD08ND MU GD10ND ...

Page 7: ...g Capillary tube X3 0 X1 6 650 Compressor Stop valve with service port Stop valve Strainer 100 Outdoor heat exchanger Refrigerant pipe with heat insulator X6 35 Refrigerant pipe X9 52 with heat insulator Flared connection Flared connection Unit mm MU GD12ND MU GD08ND ...

Page 8: ...t pipeX6 35 with heat insulator Refrigerant pipe X9 52 MU GD10ND X12 7 MU GD12ND with heat insulator Flared connection Flared connection Refrigerant flow in cooling MU C18VC C1 C1 C1 MU GD10ND C1 MU GD12ND C1 MU GD08ND C1 Indoor unit Max Height B Outdoor unit Refrigerant Piping Max Length A MAX HEIGHT DIFFERENCE ADDITIONAL REFRIGERANT CHARGE R22 g MU GD10ND MU GD12ND Model Refrigerant piping m Pip...

Page 9: ... bulb thermometers How to measure the indoor air wet dry bulb temperature difference 1 Attach at least 2 sets of wet and dry bulb thermometers to the indoor air intake as shown in the figure and at least 2 sets of wet and dry bulb thermometers to the indoor air outlet The thermometers must be attached to the position where air speed is high 2 Attach at least 2 sets of wet and dry bulb thermometers...

Page 10: ...i n u r o o d t u O kgf Gauge MPa Gauge Ambient temperature C Ambient humidity Ambient temperature C Ambient humidity 230V 220V 0 4 0 5 0 6 0 7 0 8 1 2 3 4 0 8 0 7 0 6 0 5 0 4 15 20 50 25 60 30 70 35 15 20 50 25 60 30 70 35 Ambient temperature C Ambient humidity e r u s s e r p w o l r o o d t u O Ambient temperature C Ambient humidity A t n e r r u c t i n u r o o d t u O kgf Gauge MPa Gauge 230V...

Page 11: ...ecting or disconnecting the connectors hold the housing of the connector DO NOT pull the lead wires MU C08VC MU C10VC MU C13VC MU C18VC Lead wiring Housing point Outdoor fan motor MF INNER FUSE MU GD08 GD12ND 126 2 OPEN MU GD10ND 145 OPEN Measure the resistance between the terminals with a tester Coil wiring temperature 10oC 40oC WHT RED BLK AUX MAIN FUSE Compressor MC INNER PROTECTOR MU GD08ND 15...

Page 12: ...k if there is a locking lever or not 2 The terminal with this connector has the locking mechanism Slide the sleeve Pull the terminal while pushing the locking lever Hold the sleeve and pull out the terminal slowly The terminal which has the locking mechanism can be detached as shown below There are two types Refer to 1 and 2 of the terminal with locking mechanism The terminal without locking mecha...

Page 13: ...motor Hook Relay panel Outdoor fan motor lead wires Set screws of the outdoor fan motor OPERATING PROCEDURE PHOTOS 2 Removing the electrical parts 1 Remove the service panel and the cabinet Refer to 1 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB Compressor contactor 52C Photo 3 Outdoor fan capacitor C2 Terminal block TB2 Compressor capacitor C1 Le...

Page 14: ...r 6 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 kg cm2 0MPa 7 Disconnect the welded part of the suction pipe and discharge pipe 8 Remove the nuts fixing the compressor 9 Remove the compressor Photo 5 Compressor Discharge pipe Compressor set nuts 3 places Terminal cover Suction pipe MU C08 10VC Photo 6 Compressor Discharge pipe Compresso...

Page 15: ...l and remove it See Photo 3 5 Remove the screws fixing the cabinet 6 Remove the cabinet 7 Disconnect the indoor outdoor connecting wire 8 Remove the screws fixing the back panel 9 Remove the back panel Photo 1 Screws of the cabinet Screws of the front panel and motor support Photo 3 Screws of the top panel Service panel Screw of the cabinet Direction to remove Hooks Screw of the service panel Scre...

Page 16: ...or and remove the lead clamps and outdoor fan motor lead wires 4 Remove the screws fixing the outdoor fan motor 5 Remove the outdoor fan motor Photo 5 MU GD12ND MU GD10ND MU GD12ND Relay panel Hook Outdoor fan motor lead wires Set screws of the outdoor fan motor Propeller Set screws of the outdoor fan motor Propeller nut Outdoor fan motor Set screws of the outdoor fan motor Propeller nut Relay pan...

Page 17: ...pressor 6 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 kg cm2 0MPa 7 Disconnect the welded part of the suction pipe and dis charge pipe 8 Remove the nuts fixing the compressor and the compres sor Glass terminal Compressor Suction pipe Discharge pipe Compressor nuts Photo 6 MU GD10ND Glass terminal Discharge pipe Suction pipe Compressor n...

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Page 20: ... INDUSTRIAL ESTATE 700 406 MOO 7 TAMBON DON HUA ROH AMPHUR MUANG CHONBURI 20000 THAILAND Made in Thailand New publication effective Apr 2008 Specifications subject to change without notice HEAD OFFICE TOKYO DENKI BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN TM ...

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