Mitsubishi Electric MU-GD15ND User manual

SERVICE MANUAL
Wireless type
Models
No. TBH017
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OUTDOOR UNIT
Indoor unit service manual
MS-GD•ND Series (TBH015)
MU-GD15ND- C1
MU-GD18ND- C1
MU-GD24ND- C1
MU-GD15ND- C1
MU-GD18ND- C1
TECHNICAL CHANGES.....................................
PART NAMES AND FUNCTIONS......................
SPECIFICATION................................................
OUTLINES AND DIMENSIONS.........................
WIRING DIAGRAM............................................
REFRIGERANT SYSTEM DIAGRAM................
PERFORMANCE CURVES...............................
TROUBLESHOOTING.......................................
DISASSEMBLY INSTRUCTIONS.....................
2
3
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5
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9
12
16
1.
2.
3.
4.
5.
6.
7.
8.
9.
CONTENTS
PARTS CATALOG (TBB017)
NOTE:
• RoHS compliant products have <G> mark on the spec name plate.
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2
TECHNICAL CHANGES
1
MU-A15ND- C1 ➔ MU-GD15ND- C1
MU-A18ND- S1 ➔ MU-GD18ND- C1
1. Outdoor unit model has been changed.
• Dimension has been changed. (850Wx605Hx290D  800Wx550Hx285D)
2. Compressor has been changed. (RH207NRAT  RH189NRAT)
3. Outdoor fan motor has been changed. (RA6V60-MA  RA6V33-MC)
4. Compressor capacitor has been changed.
5. Fan motor capacitor has been changed.
6. Condenser has been changed.
1. Outdoor unit model has been changed.
• Dimension has been changed. (850Wx605Hx290D  800Wx550Hx285D)
2. Outdoor fan motor has been changed. (RA6V60-MA  RA6V33-MC)
3. Compressor capacitor has been changed.
4. Condenser has been changed.
MU-A24ND- S1 ➔ MU-GD24ND- C1
1. Compressor has been changed. (PH33NPBT  PH36NPBT)
2. Outdoor fan motor has been changed. (RA6N75-BA  RA6V85-CA)
3. Fan motor capacitor has been changed.
4. Condenser has been changed.

3
Outdoor model MU-GD15ND- C1 MU-GD18ND- C1 MU-GD24ND- C1
Funtion Cooling
Power supply Single phase
220-230V, 60Hz
Capacity
Capacity kW 4.1-4.1 5.0-5.0 6.6-6.6
Dehumidification R/h 0.43 1.2 2.4
Air flow K/h 2,106-2,124 2,772-2,892
Electrical data
Power outlet A 15 15 20
Running current (total) A 6.0-6.0 8.3-8.3 11.1-11.1
Power input (total) W 1,280-1,280 1,765-1,770 2,375-2,375
Power factor (total) % 97-93 97-93 97-93
Starting current A 40.0 45.0 67.0
Compressor motor current A 5.26-5.25 7.56-7.55 10.17-10.15
Fan motor current A 0.37-0.38 0.37-0.38 0.56-0.58
Coefficient of performance (C.O.P) 3.20-3.20 2.83-2.82 2.78-2.78
Compressor
Model RH189NRAT RH247NRAT PH36NPBT
Output W 900 1,200 1,600
Winding
resistance (at 20°C) "C-R 1.50 C-S 2.33
C-R 1.43
C-S 2.06
C-R 0.76
C-S 1.88
Fan
motor
Model RA6V33-MC RA6V85-CA
Winding
resistance (at 20°C) "WHT-BLK 141 BLK-RED 175
WHT-BLK 86
BLK-RED 92
Dimensions WxHxD mm 800 x 550 x 285 840 x 850 x 330
Weight kg 35 34 61
Special
remarks
Sound level dB 52-52 54-54 54-54
Fan speed rpm 980-990 750-780
Fan speed regulator 1
Refrigerant filling
capacity (R22) kg 1.25 1.40 1.65
Refrigeration oil (Model) cc 520 (NM56) 900 (NM56)
2
MU-GD15ND
MU-GD18ND
MU-GD24ND
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SPECIFICATION
3
OUTDOOR UNIT
PART NAMES AND FUNCTIONS
NOTE: Test conditions are based on CNS 14464
Cooling : Indoor Dry-bulb temperature 27°C Wet-bulb temperature 19°C
Outdoor Dry-bulb temperature 35°C Wet-bulb temperature 24°C
Refrigerant piping length(one way) 7.5 m

4
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4
MU-GD15ND
MU-GD18ND
MU-GD24ND
OUTDOOR UNIT
OUTDOOR UNIT
OUTLINES AND DIMENSIONS
( MU-GD15ND- C1 )
( MU-GD18ND- C1 )
Unit : mm
Unit : mm

5
5
MU-GD15ND
OUTDOOR UNIT
MU-GD18ND
OUTDOOR UNIT
WIRING DIAGRAM

6
MU-GD24ND
OUTDOOR UNIT

7
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6REFRIGERANT SYSTEM DIAGRAM
MU-GD15ND
MU-GD18ND
OUTDOOR UNIT
MU-GD24ND
OUTDOOR UNIT
( MU-GD15ND- C1 )
( MU-GD18ND- C1 )
MU-GD15ND- C1 ({3.0x{1.8x700)
MU-GD18ND- C1 ({3.0x{1.8x450)
({3.0x{2.0x300)

8
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
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MU-GD15ND-
C1
MU-GD18ND-
C1
MU-GD24ND-
C1
MU-GD15ND-
C1
MU-GD18ND-
C1
MU-GD24ND-
C1

9
7PERFORMANCE CURVES








 
 
 
 


�
�
�
�






























   


 
MU-GD15ND MU-GD18ND MU-GD24ND
MS-GD15ND-
C1
MU-GD15ND-
C1
MS-GD18ND-
C1
MU-GD18ND-
C1
MS-GD24ND-
C1
MU-GD24ND-
C1

10






  
  
  
















 


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  
  
  



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
 




 


 
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  
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

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MU-GD15ND
MU-GD18ND
MU-GD15ND
MU-GD18ND