Mitsubishi | MS-GD10ND | User manual | MU-GD08ND- MU-GD10ND- MU-GD12ND- C1

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Mitsubishi | MS-GD10ND | User manual | MU-GD08ND- MU-GD10ND- MU-GD12ND- C1 | Manualzz
SPLIT-TYPE, AIR CONDITIONERS
OUTDOOR UNIT
SERVICE MANUAL
No. TBH016
Wireless type
Models
MU-GD08NDMU-GD10NDMU-GD12ND-
C1
C1
C1
Indoor unit service manual
MS-GD•ND Series (TBH014)
CONTENTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
MU-GD08ND-
C1
TECHNICAL CHANGES ····································2
PART NAMES AND FUNCTIONS ······················3
SPECIFICATION ·················································4
OUTLINES AND DIMENSIONS ·························5
WIRING DIAGRAM ············································6
REFRIGERANT SYSTEM DIAGRAM ················7
PERFORMANCE CURVES ································9
TROUBLESHOOTING······································11
DISASSEMBLY INSTRUCTIONS ····················12
PARTS CATALOG (TBB016)
TM
NOTE:
• RoHS compliant products have <G> mark on the spec name plate.
1
TECHNICAL CHANGES
C2 = MU-GD08ND- C1
Compressor has been changed. (2R10S3R236A-6B = KS-098NARC)
Outdoor fan motor has been changed. (RA6N33-AA = RA6V21-BE)
Outdoor heat exchanger has been changed.
Compressor capacitor has been changed.
Fan motor capacitor has been changed.
MU-A08ND1.
2.
3.
4.
5.
C1 = MU-GD12ND- C1
Compressor has been changed. (RH174NHNT = RH189NRAT)
Outdoor fan motor has been changed. (RA6N30-BA = RA6V33-MC)
Compressor capacitor has been changed.
Fan motor capacitor has been changed.
MU-A12ND1.
2.
3.
4.
C2 = MU-GD10ND1. Model name changed.
MU-A10ND-
C1
2
2
PART NAMES AND FUNCTIONS
MU-C08VC
MU-GD08ND
MU-C10VC
MU-C13VC
Air inlet
(back and side)
Piping
Drain hose
Air outlet
Drain outlet
MU-GD10ND
MU-C18VC
MU-GD12ND
Air inlet
(back and side)
Piping
Drain hose
Air outlet
Drain outlet
3
3
SPECIFICATION
Electrical data
Capacity
Outdoor model
MU-GD08ND -
Compressor
Fan
motor
MU-GD10ND Cooling
Power supply
Single phase
220-230V, 60Hz
Capacity
kW
2.2-2.2
MU-GD12ND -
C1
Function
2.9-2.9
R/h
0.1
0.45
1.1
Air flow
K /h
1896-1962
1452-1524
2106-2124
Power outlet
A
10
10
10
Running current (Total)
A
3.19-3.24
4.31-4.31
5.7-5.7
Power input (Total)
W
680-685
930-930
1210-1210
Power factor (Total)
%
97-92
98-94
96-92
Starting current
A
19
26
40
Compressor motor current
A
2.67-2.71
3.86-3.85
5.14-5.13
Fan motor current
A
0.330-0.340
0.260-0.270
0.370-0.380
3.24-3.21
3.12-3.12
2.98-2.98
Model
C1
3.6-3.6
Dehumidification
Coefficient of performance (C.O.P)
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
RA6V21-BE
RA6N21-AB
RA6V33-MC
Ω
WHT-BLK 252
BLK-RED 278
WHT-BLK 384
BLK-RED 259
WHT-BLK 141
BLK-RED 175
mm
684x540x255
Model
Winding
resistance (at 20:)
Dimensions WxHxD
Weight
Special
remarks
C1
800x550x285
kg
22
34
35
Sound level
dB
46-47
46-46
50-51
Fan speed
rpm
820-830
690-720
980-990
Fan speed regulator
1
Refrigerant filling capacity (R22)
kg
Refrigeration oil (Model)
cc
0.55
1.10
300(NM56)
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
520(NM56)
4
OUTLINES AND DIMENSIONS
Unit : mm
MU-GD08ND
REQUIRED SPACE
Basically open 100mm or more
without any obstruction in front
and on both sides of the unit.
ore
381.5
30 0
Air in
or m
ore
255
Service panel
20.8
17.5
Handle
43
40
10
144.6
89.6
Liquid refrigerant pipe joint
Refrigerant pipe (flared) ;6.35
540
270
mm
Open two sides of left,
right, or rear side.
22.5
2 holes 10'16
350
ore
or m
mm
100
40
Air out
or m
rm
ore
Bolt pitch for
installation
264~280
Drain hole ;33
47.5
Air in
mm
100
100
mm
o
Gas refrigerant pipe joint
Refrigerant pipe (flared) ;9.52
61
Service port
243
105
145.5
500
Bolt pitch for installation
684
MU-GD10ND
MU-GD12ND
Unit : mm
REQUIRED SPACE
400
Air in
Drain hole ;42
Bolt pitch for
installation
304~325
44
285
100
Air in
mm
o
o
mm
100
rm
ore
40
17.5
mm
200
2 holes 10'21
re
r mo
or
or m
e
350
m
mo
rm
ore
Open two sides of left,
right, or rear side.
Air out
22.3
Service panel
23
Handle
Liquid refrigerant pipe joint
Refrigerant pipe (flared) ;6.35
150
164.5
43
10
35
280
550
69
302.5
Gas refrigerant pipe joint
Refrigerant pipe (flared) ;9.52 (MU-GD10ND)
99.5
344.5
Basically open 100mm or more
without any obstruction in front
and on both sides of the unit.
500 Bolt pitch for installation
170.5
Service port
800
5
;12.7 (MU-GD12ND)
5
WIRING DIAGRAM
MU-GD08ND
MU-C08VC
MU-C10VC
MU-GD10ND
MU-C13VC
6
MU-GD12ND
MU-C18VC
6
REFRIGERANT SYSTEM DIAGRAM
MU-GD08ND
Unit : mm
Refrigerant pipe X9.52
(with heat insulator)
Stop valve
(with service port)
Flared
connection
Compressor
Outdoor
heat
exchanger
Strainer
#100
Flared
connection
Stop valve Capillary tube
X3.0 ' X1.6 ' 650
Refrigerant pipe X6.35
(with heat insulator)
Refrigerant flow in cooling
7
MU-GD10ND
MU-C18VC
MU-GD12ND
Refrigerant pipe X9.52 (MU-GD10ND)
X12.7 (MU-GD12ND)
(with heat insulator)
Stop valve
(with service port)
Outdoor heat
exchanger
Flared
connection
Strainer
#100
Compressor
Flared
connection
Stop valve
Capillary tube
X3.0 ' X1.6 ' 850 (MU-GD10ND - C1 )
X3.0 ' X1.6 ' 450 (MU-GD12ND - C1 )
Refrigerant flow in cooling
Refrigerant pipe X6.35
(with heat insulator)
MAX.REFRIGERANT PIPING LENGTH
Refrigerant
piping
Refrigerant
piping
: m: m
Model
Model
MU-GD08ND
- C1
MU-GD08ND-
C1
MU-GD10ND
- C1
MU-GD10ND-
C1
MU-GD12NDMU-GD12ND
- C1
C1
Piping size O.D : mm
Piping size O.D : mm
Max. Max.
lengthlength Max.
Max.height
height
A
A
BB
20
10
20
10
30
Gas
Gas
Liquid
Liquid
X9.52
ø9.52
X12.7
X6.35
ø6.35
ø12.7
MAX.HEIGHT DIFFERENCE
Indoor
unit
Max. Height
B
Refrigerant Piping
Max. Length
A
Outdoor unit
ADDITIONAL REFRIGERANT CHARGE(R22 : g)
Outdoor unit
precharged
Model
Outdoor unit precharged 7m
Model
MU-GD08ND -
Refrigerant piping length (one way)
C1
MU-GD08ND- C1
MU-GD10ND - C1
C1
MU-GD10NDMU-GD12NDMU-GD12ND - C1
C1
550
550
1100
1100
0
10m
7m
0
Refrigerant piping length (one way)
15m
10m
45
45120
20m
15m
20m
195
120
195
30m
345
NOTE : Calculation : Xg=15g/m x (Refrigerant piping length (m)-7)
8
7
PERFORMANCE CURVES
MU-GD08ND MU-C10VC
MU-GD10NDMU-C13VC
MU-GD12ND
MU-C08VC
MU-C18VC
The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions.
Since operating conditions vary according to the areas where these units are installed. The following information has been
provided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.
(1) GUARANTEED VOLTAGE
198 ~ 253V, 60Hz
(2) AIR FLOW
Air flow should be set at MAX.
(3) MAIN READINGS
(1) Indoor intake air wet-bulb temperature :
°CWB
(2) Indoor outlet air wet-bulb temperature :
°CWB
(3) Outdoor intake air dry-bulb temperature : °CDB
(4) Total input:
W
Indoor air wet/dry-bulb temperature difference on the left side of the chart on next page shows the difference between the
indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your reference at service.
How to measure the indoor air wet/dry-bulb temperature difference
INDOOR UNIT
OUTDOOR UNIT
Wet and dry-bulb
thermometers
Wet and dry-bulb
thermometers
5.6 7.0
8.5
5.1 6.5
7.8
4.7 5.9
7.1
4.3 5.4
6.4
3.8 4.8
5.8
3.4 4.3
5.1
MS-GD12ND- C1
MU-GD12ND- C1
3.
4.
5.
6.
7.
MS-GD10ND- C1
MU-GD10ND- C1
2.
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.
Attach at least 2 sets of wet and dry-bulb thermometers to the outdoor air intake.
Cover the thermometers to prevent direct rays of the sun.
Check that the air filter is cleaned.
Open windows and doors of the room.
Press the EMERGENCY OPERATION switch once to start the EMERGENCY COOL MODE.
When system stabilizes after more than 15 minutes, measure temperature and take an average temperature.
10 minutes later, measure temperature again and check that the temperature does not change.
MS-GD08ND- C1
MU-GD08ND- C1
1.
Indoor intake air WB temperature ()
Outdoor intake air DB temperature ()
9
Indoor intake air WB temperature ()
Outdoor intake air DB temperature ()
OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
COOL operation
Both indoor and outdoor units are under the same temperature/humidity condition.
Dry-bulb temperature ()
Relative humidity (%)
20
50
25
60
30
70
Air flow should be set at MAX.
The unit of pressure has been changed to MPa on the international system of units(SI unit system).
The conversion factor is : 1(MPa [Gauge]) =10.2(kgf/C [Gauge])
MU-GD08ND
(kgf/& [Gauge])(MPa [Gauge])
8.0
7.0
6.0
5.0
4.0
0.9
230V
220V
0.8
0.7
0.6
0.5
0.4
15
20
50
25
60
30
70
(kgf/& [Gauge])(MPa [Gauge])
0.8
3.5
3.0
2.5
2.0
15
35()
(%)
Ambient temperature (˚C)/Ambient humidity (%)
0.8
MU-GD08ND
4.0
Outdoor unit current (A)
Outdoor low pressure
9.0
20
50
25
60
30
70
35()
(%)
Ambient temperature (˚C)/Ambient humidity (%)
MU-GD10ND
MU-GD10ND
4
230V
0.6
0.5
0.4
0.7
Outdoor unit current (A)
Outdoor low pressure
220V
0.7
0.6
0.5
0.4
15
20
50
25
60
30
70
(kgf/& [Gauge])(MPa [Gauge])
0.7
0.7
2
1
35()
(%)
Ambient temperature (˚C)/Ambient humidity (%)
3
15
20
50
25
60
30
70
Ambient temperature (˚C)/Ambient humidity (%)
MU-GD12ND
MU-GD12ND
7
230V
230V
220V
0.5
0.4
0.3
0.6
Outdoor unit current (A)
Outdoor low pressure
220V
0.6
0.5
0.4
0.3
15
20
50
25
60
30
70
35()
(%)
5
4
35()
(%)
Ambient temperature (˚C)/Ambient humidity (%)
6
15
20
50
25
60
30
70
35()
(%)
Ambient temperature (˚C)/Ambient humidity (%)
10
8
TROUBLESHOOTING
MU-GD08ND
MU-GD10NDMU-C13VC
MU-GD12ND
MU-C08VC MU-C10VC
MU-C18VC
8-1. Cautions on troubleshooting
1. Before troubleshooting, check the following:
1) Check the power supply voltage.
2) Check the indoor/outdoor connecting wire for mis-wiring.
2. Take care of the following during servicing
1) Before servicing the air conditioner, be sure to turn OFF the main unit first with the remote controller, and then after
confirming the horizontal vane is closed, turn OFF the breaker and / or disconnect the power plug.
2) Be sure to turn OFF the power supply before removing the front panel,
the cabinet, the top panel and the electronic control P.C. board.
3) When removing the electronic control P.C. board, hold the edge of the
board with care NOT to apply stress on the components.
4) When connecting or disconnecting the connectors, hold the housing of the
connector. DO NOT pull the lead wires.
Lead wiring
Housing point
8-2. Trouble criterion of main parts
MU-GD08ND
MU-GD10ND
MU-GD12ND
Check method and criterion
Part name
Measure the resistance between the terminals with a tester.
(Coil wiring temperature -10oC ~ 40oC)
Compressor (MC)
INNER
PROTECTOR
MU-GD08ND- C1
155&5 OPEN
90&10 CLOSE
MU-GD10/GD12ND150&5 OPEN
90&10 CLOSE
Figure
Normal
Color of
lead wire
C1
Outdoor fan
motor (MF)
WHT
C
MU-GD08ND-
MU-GD10ND-
C1
C1
MU-GD12ND-
P
C1
S
C-R
3.12 ~ 3.82 Ω
2.41 ~ 2.96 Ω
1.32 ~ 1.62 Ω
C-S
4.32 ~ 5.29 Ω
3.33 ~ 4.08 Ω
2.05 ~ 2.52 Ω
R BLK
RED
Measure the resistance between the terminals with a tester.
(Coil wiring temperature -10oC ~ 40oC)
MAIN
INNER FUSE
MU-GD08/GD12ND126&2 OPEN
MU-GD10ND- C1
145 OPEN
C1
Color of
lead wire
AUX.
Normal
MU-GD08ND -
MU-GD10ND -
C1
C1
MU-GD12ND -
WHT-BLK
222 ~ 272 Ω
338 ~ 415 Ω
124 ~ 153 Ω
BLK-RED
245 ~ 300 Ω
228 ~ 280 Ω
154 ~ 189 Ω
FUSE
C1
BLK
RED WHT
$:INNER PROTECTOR
11
9
DISASSEMBLY INSTRUCTIONS
<"Terminal with locking mechanism" Detaching points>
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 mechanism can be detached by pulling it out.
Check the shape of the terminal before detaching.
(1) Slide the sleeve and check if there is a locking lever or not.
(2) The terminal with this connector has the
locking mechanism.
Sleeve
Locking lever
9-1.
Slide the sleeve.
Pull the terminal while
pushing the locking
lever.
Hold the sleeve, and
pull out the terminal
slowly.
Connector
MU-C08VC MU-C10VC MU-C13VC
MU-GD08ND
PHOTOS
OPERATING PROCEDURE
1. Removing the cabinet
Photo 1
(1) Remove the screws fixing the top panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Remove the screw fixing the service panel. (See Photo 2.)
(4) Pull down the service panel and remove it. (See Photo 2.)
(5) Remove the screws fixing the cabinet.
(6) Remove the cabinet.
(7) Disconnect the power supply and indoor/outdoor connecting wire.
(8) Remove the screws fixing the back panel.
(9) Remove the back panel.
Screws
of the
top panel
Screw of
the top panel
Photo 2
Screws of
the cabinet
Screw of the
service panel
Direction to
remove
Hooks
12
Service
panel
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)
NOTE : When attaching compressor contactor (52C)
to relay panel, make sure that the side with
printed letters is facing upward.
Photo 3
Outdoor fan
capacitor
(C2)
Lead clamp
Compressor
capacitor
(C1)
Model and type name
OMRON
G7L-1A-TUB-07
Connector
xxxxxx
x
xxxxxx
xxxxxx x
xxxxxx xxxxxxxxxx
xx xxxxxxxxx
xxxx
x
xxxxxx
x
xxxxxx
xxxxxx
xxxxxx
Terminal
block (TB2)
1
0
8
Terminal
block(TB1)
2
0 4
6
Earth screw of
indoor/ outdoor
connecting wire
1
3. Removing the propeller and the outdoor fan motor
(1) Remove the cabinet. (Refer to 1.)
(2) Remove the propeller nut and the propeller.
NOTE : Loose the propeller in the rotating direction for
removal.
When attaching the propeller, align the mark on the
propeller and the motor shaft cut section.
Set the propeller in position by using the cut on the shaft
and the mark on the propeller.
(3) 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.
Earth screw of
power supply
Photo 4
Set screws of the
outdoor fan motor
Outdoor fan motor lead wires
Hook
Propeller
Propeller
nut
Set screws of the
outdoor fan motor
13
Compressor
contactor
(52C)
Outdoor
fan motor
Relay panel
OPERATING PROCEDURE
PHOTOS
4. Removing the compressor
(1) Remove the cabinet. (Refer to 1.)
(2) Remove the soundproof felt.
(3) Remove the screws fixing the relay panel.
(4) Remove the terminal cover.
(5) Pull out the lead wires from the glass terminal of the compressor.
(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
MU-C08/10VC
Discharge
pipe
Terminal
cover
Suction
pipe
Compressor
Compressor set nuts
(3 places)
Photo 6
MU-C13VC
Discharge
pipe
Terminal
cover
Suction
pipe
Compressor
Compressor set nuts
(3 places)
14
9-2.
MU-GD10ND
MU-C18VC MU-GD12ND
OPERATING PROCEDURE
PHOTOS
1. Removing the cabinet
(1) Remove the screws fixing the top panel. (See Photo 2 and
3.)
(2) Remove the top panel. (See Photo 3.)
(3) Remove the screw fixing the service panel. (See Photo 3.)
(4) Pull down the service panel 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 front panel and motor support
Screws of the cabinet
Photo 3
Photo 2
Screws of the
top panel
Service
panel
Screws of the
top panel
Screw of the
service panel
Direction
to remove
Screws of
the cabinet
Hooks
Screw of the
cabinet
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 4
Lead clamp
MU-GD10ND
Connector
Outdoor fan
capacitor (C2)
Compressor
capacitor (C1)
Terminal
block(TB1)
Terminal
block (TB2)
Earth screw of indoor/
outdoor connecting wire
15
Earth screw of
power supply
OPERATING PROCEDURE
PHOTOS
MU-GD12ND
Connector
Outdoor fan
capacitor (C2)
Lead clamp
Terminal
block(TB1)
Compressor
capacitor (C1)
3. Removing propeller and the outdoor fan motor
(1) Remove the cabinet. (Refer to 1.)
(2) Remove the propeller nut and remove the propeller.
NOTE : Loose the propeller in the rotating direction for
removal.
When attaching the propeller, align the mark on the
propeller and the motor shaft cut section.
Set the propeller in position by using the cut on the
shaft and the mark on the propeller.
(3) Disconnect the connector 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-GD10ND
Set screws of the
outdoor fan motor
Terminal
block (TB2)
Outdoor fan motor
lead wires
Relay panel
Hook
Propeller
Propeller nut
Set screws of the
outdoor fan motor
MU-GD12ND
Set screws of the
outdoor fan motor
Propeller
Propeller nut
16
Compressor
contactor
(52C)
Hook
Set screws of the
outdoor fan motor
Outdoor
fan motor
Outdoor fan motor
lead wires
Relay panel
Outdoor
fan motor
OPERATING PROCEDURE
PHOTOS
4. Removing the compressor
(1) Remove the cabinet. (Refer to 1.)
(2) Remove the relay panel.
(3) Remove the soundproof felt.
(4) Remove the terminal cover.
(5) Pull out the lead wires from the glass terminal of the compressor.
(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 and the compressor.
Photo 6
MU-GD10ND
Discharge pipe
Suction pipe
Glass
terminal
Compressor
Compressor
nuts
MU-GD12ND
Glass
terminal
Discharge
pipe
Suction
pipe
Compressor
Compressor nuts
(3 places)
17
TM
HEAD OFFICE: TOKYO DENKI BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN
MITSUBISHI ELECTRIC CONSUMER PRODUCTS (THAILAND) CO., LTD.
AMATA NAKORN 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.

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