Mitsubishi Electric Mr. Slim MSZ-GE09NA User manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES······································· 2
2. PART NAMES AND FUNCTIONS·····················3
3. SPECIFICATION················································5
4. OUTLINES AND DIMENSIONS ························ 7
5. WIRING DIAGRAM············································ 9
6. REFRIGERANT SYSTEM DIAGRAM············· 11
7. SERVICE FUNCTIONS ···································12
8. MICROPROCESSOR CONTROL ···················14
9. TROUBLESHOOTING·····································21
10. DISASSEMBLY INSTRUCTIONS····················40
No. OBH548
REVISED EDITION-D
SPLIT-TYPE AIR CONDITIONERS
INDOOR UNIT
Outdoor unit service manual
MUZ-GE•NA MUY-GE•NA
Series (OBH549)
MXZ-B·NA Series (OB444)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
PARTS CATALOG (OBB548)
Revision D:
• MSZ-GE06/09/12/15/18NA- 9and MSY-
GE09/12/15/18NA- 9have been added.
Please void OBH548 REVISED EDITION-C
MSZ-GE06NA
MSZ-GE09NA
MSZ-GE12NA
MSZ-GE15NA
MSZ-GE18NA
MSZ-GE24NA
MSY-GE09NA
MSY-GE12NA
MSY-GE15NA
MSY-GE18NA
MSY-GE24NA
Models
MSZ-GE06/09/12/15/18NA
MSY-GE09/12/15/18NA
MSZ-GE06NA- 8,9
MSZ-GE09NA- 8,9
MSZ-GE12NA- 8,9
MSZ-GE15NA- 8,9
MSZ-GE18NA- 8,9
MSY-GE09NA- 8,9
MSY-GE12NA- 8,9
MSY-GE15NA- 8,9
MSY-GE18NA- 8,9

2
MSZ-GE06NA MSZ-GE09NA MSZ-GE12NA MSZ-GE15NA MSZ-GE18NA MSZ-GE24NA
MSY-GE09NA MSY-GE12NA MSY-GE15NA MSY-GE18NA MSY-GE24NA
1. New model
1TECHNICAL CHANGES
Revision A:
• MSZ-GE24NA and MSY-GE24NA have been added.
Revision B:
• MSZ-GE06/09/12/15/18NA- 8and MSY-GE09/12/15/18NA- 8have been added.
Revision D:
• MSZ-GE06/09/12/15/18NA- 9and MSY-GE09/12/15/18NA- 9have been added.
Use the specified refrigerant only
Never use any refrigerant other than that specified.
Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.
Correct refrigerant is specified in the manuals and on the spec labels provided with our products.
We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by
failure to follow the instructions.
MSZ-GE06NA MSZ-GE06NA - 8
MSZ-GE09NA MSZ-GE09NA - 8
MSZ-GE12NA MSZ-GE12NA - 8
MSZ-GE15NA MSZ-GE15NA - 8
MSZ-GE18NA MSZ-GE18NA - 8
MSY-GE09NA MSY-GE09NA - 8
MSY-GE12NA MSY-GE12NA - 8
MSY-GE15NA MSY-GE15NA - 8
MSY-GE18NA MSY-GE18NA - 8
1. These models have been modified to be compatible with Honeywell remote controller.
2. Indoor electronic control P.C. board has been changed.
MSZ-GE06NA - 8MSZ-GE06NA - 9
MSZ-GE09NA - 8MSZ-GE09NA - 9
MSZ-GE12NA - 8MSZ-GE12NA - 9
MSZ-GE15NA - 8MSZ-GE15NA - 9
MSZ-GE18NA - 8MSZ-GE18NA - 9
MSY-GE09NA - 8MSY-GE09NA - 9
MSY-GE12NA - 8MSY-GE12NA - 9
MSY-GE15NA - 8MSY-GE15NA - 9
MSY-GE18NA - 8MSY-GE18NA - 9
1. Model name has been changed.
2. New service parts numbers (Refer to OBB548 1-9 to 1-12.)
Revision C:
• Specification has been corrected.
The value of "Moisture removal" for MSZ-GE24NA and MSY-GE24NA has been corrected. [
2.7 pt./h 5.1 pt./h]
OBH548D

3
MSZ-GE06NA MSZ-GE09NA MSZ-GE12NA MSZ-GE15NA MSZ-GE18NA
MSY-GE09NA MSY-GE12NA MSY-GE15NA MSY-GE18NA
Remote controller
Operation indicator lamp
Remote control receiving section
Emergency operation switch (E.O. SW)
Horizontal vane
Air outlet
Air ¿lter
[Catechin air ¿lter (GENA) ]
Air inlet
Heat exchanger
Front panel
Air cleaning ¿lter
(Anti-Allergy Enzyme
Filter)
[Nano platinum ¿lter (GENA- 8 , - 9 ) ]
Display section
2PART NAMES AND FUNCTIONS
ACCESSORIES
Installation plate 1
Installation plate fixing screw 4 × 25 mm 5
Remote controller holder 1
Fixing screw for 3.5 × 16 mm (Black) 2
Battery (AAA) for remote controller 2
Wireless remote controller 1
Felt tape (Used for left or left-rear piping) 1
OBH548D

4
Remote controller
Display section
Front panel
Air filter
(Nano platinum filter)
Air inlet
Air cleaning filter
(Electrostatic anti-allergy
enzyme filter)
Air outlet
Horizontal vane
Heat exchanger
MSZ-GE24NA
MSY-GE24NA
ACCESSORIES
Installation plate 1
Installation plate fixing screw 4 × 25 mm 7
Remote controller holder 1
Fixing screw for 3.5 × 16 mm (Black) 2
Battery (AAA) for remote controller 2
Wireless remote controller 1
Felt tape (Used for left or left-rear piping) 1
Air cleaning filter 2
OBH548D

5
Indoor model MSZ-GE06NA MSZ-GE09NA
MSY-GE09NA MSZ-GE12NA MSY-GE12NA
Power supply V, phase, Hz 208/230, 1, 60
Max. fuse size (time delay)/ Disconnect switch A15
Min. circuit ampacity A 1.0
Fan motor F.L.A 0.76
Airflow
Super High - High - Med. -
Low - Quiet
COOL Dry
(Wet)
CFM 399-321-237-170-145
(364-286-201-134-109)
HEAT Dry CFM 406-321-233-170-145 406-321-237-170-145
Moisture removal pt./h – 1.5 2.5
Sound level
Super High - High - Med. -
Low - Quiet
Cooling dB(A) 43-37-30-22-19 45-37-30-22-19
Heating dB(A) 43-37-30-22-19
Cond. drain connection O.D. in. 5/8
Dimensions
W
in.
31-7/16
D 9-1/8
H 11-5/8
Weight Ib. 22
External finish Munsell 1.0Y 9.2/0.2
Control voltage (by built-in transformer) 12 - 24 VDC
Indoor model MSZ-GE15NA
MSY-GE15NA MSZ-GE18NA MSY-GE18NA MSZ-GE24NA MSY-GE24NA
Power supply V, phase, Hz 208/230, 1, 60
Max. fuse size (time delay)/ Disconnect switch A15 20
Min. circuit ampacity A 1.0
Fan motor F.L.A 0.76
Airflow
Super High - High - Med. -
Low - Quiet (GE15/18)
Powerful - High - Med - Low
(GE24)
COOL Dry
(Wet)
CFM 533-420-335-272-205
(498-385-300-237-170)
533-420-339-275-230
( 498-385-304-240-194)
738-628-469-388
(661-562-420-347)
HEAT Dry CFM 463-367-304-247-205 512-431-339-275-230 738-628-469-388
Moisture removal pt./h 2.7 4.6 5.1
Sound level
Super High - High - Med. -
Low - Quiet (GE15/18)
Powerful - High - Med - Low
(GE24)
Cooling dB(A) 49-44-38-32-26 49-44-38-33-28 53-49-41-34
Heating dB(A) 46-40-35-30-26 49-43-38-33-28 52-49-41-32
Cond. drain connection O.D. in. 5/8
Dimensions
W
in.
31-7/16 43-5/16
D 9-1/8 9-3/8
H 11-5/8 12-13/16
Weight Ib. 22 37
External finish Munsell 1.0Y 9.2/0.2
Control voltage (by built-in transformer) 12 - 24 VDC
NOTE: Test conditions are based on AHRI 210/240.
3SPECIFICATION
OBH548D

6
3-2. OUTLET AIR SPEED AND COVERAGE
●The air coverage is the figure up to the
position where the air speed is 1 ft./s.,
when air is blown out horizontally from
the unit properly at the High speed posi-
tion.
The coverage should be used only as a
general guideline since it varies accord-
ing to the size of the room and furniture
arranged inside the room.
(2) OPERATION
Mode Condition
Intake air temperature (°F)
Indoor Outdoor
DB WB DB WB
Cooling
Standard temperature 80 67 95 —
Maximum temperature 90 73 115 —
Minimum temperature 67 57 14 —
Maximum humidity 78% —
Heating
Standard temperature 70 60 47 43
Maximum temperature 80 67 75 65
Minimum temperature 70 60 -4 -5
3-1. OPERATING RANGE
(1) POWER SUPPLY
Rated voltage Guaranteed voltage (V)
Indoor unit
208/230 V
1 phase
60 Hz
Min. 187 208 230 Max. 253
Model Mode Function Airflow
(CFM)
Air speed
(ft./s.)
Coverage (ft.)
MSZ-GE06NA
HEAT Dry 406 20.6 29.5
COOL Dry 321 16.3 23.5
Wet 286 14.5 21.0
MSZ-GE09NA
MSY-GE09NA
HEAT Dry 406 20.6 29.5
COOL Dry 321 16.3 23.5
Wet 286 14.5 21.0
MSZ-GE12NA
MSY-GE12NA
HEAT Dry 406 20.6 29.5
COOL Dry 321 16.3 23.5
Wet 286 14.5 21.0
MSZ-GE15NA
MSY-GE15NA
HEAT Dry 463 23.4 33.5
COOL Dry 420 21.3 30.5
Wet 385 19.5 28.0
MSZ-GE18NA
MSY-GE18NA
HEAT Dry 512 25.9 36.9
COOL Dry 420 21.3 30.5
Wet 385 19.5 28.0
MSZ-GE24NA
MSY-GE24NA
HEAT Dry 738 18.0 36.9
COOL Dry 738 18.0 36.9
Wet 661 16.1 33.2
OBH548D

7
Unit: inch
MSZ-GE06NA MSZ-GE09NA MSZ-GE12NA MSZ-GE15NA MSZ-GE18NA
MSY-GE09NA MSY-GE12NA MSY-GE15NA MSY-GE18NA
8-5/16
9-1/8
9-15/16
7/8
6-1/8 6-1/8
3-1/8
3-1/8 8-7/8 8-7/8
1/8
3/4
6 - 1/4
2- 5/16
3/16
9-1/8
2-3/16 2-3/4
31-7/16
30-15/16 1/4
5-1/824-3/81-15/16
11-5/8
1-15/16
1-5/8
2-3/16
1-11/16
1-5/8
5/16
3-15/16
4/3/16
4-3/8
1-3/4
2-3/16
2-11/16
13-5/162-3/8
8-3/8
10
1-5/8
1-5/8
13-9/16 2-1/8
7/16×1 Oblong hole 7/16×13/16 Oblong hole
Installation plate
Indoor unit Wall hole ø2-9/16
Air in
Air out
Installation plate
Piping
Drain hose
Piping
Insulation ø1 - 3/8 O.D
Liquid line ø1/4 19 - 11/16 (Flared connection ø1/4)
Gas line ø3/8 16 - 15/16
(Flared connection: ø3/8 (GE06/09/12NA), ø1/2 (GE15/18NA))
Drain hose Insulation ø1-1/8 O.D Connected part ø5/8 O.D
Piping
Insulation ø1 - 3/8 O.D
Liquid line ø1/4 19 - 11/16 (Flared connection ø1/4)
Gas line ø3/8 16 - 15/16
(Flared connection: ø3/8 (GE06/09/12NA), ø1/2 (GE15/18NA))
Drain hose Insulation ø1-1/8 O.D Connected part ø5/8 O.D
4OUTLINES AND DIMENSIONS
MSZ-GE06NA- 9 MSZ-GE09NA- 9 MSZ-GE12NA- 9 MSZ-GE15NA- 9 MSZ-GE18NA- 9
MSY-GE09NA- 9 MSY-GE12NA- 9 MSY-GE15NA- 9 MSY-GE18NA- 9
MSZ-GE06NA- 8 MSZ-GE09NA- 8 MSZ-GE12NA- 8 MSZ-GE15NA- 8 MSZ-GE18NA- 8
MSY-GE09NA-
8 MSY-GE12NA- 8 MSY-GE15NA- 8 MSY-GE18NA- 8
OBH548D

8
MSZ-GE24NA
MSY-GE24NA
42-7/8 3/16
43-5/16
1-3/4 9-3/8
10-3/16
1/8
11
8-7/8 8-7/8
5-1/16
9-7/16
11-1/16
1-3/4
1-15/16 19-3/4 17-5/16
7-27/327-27/32
4-3/8
2-9/16
2-1/2
333-1/8 7-1/8
2-9/16
2-9/16
1-3/16
2-1/2
2-9/16
2-5/8
2-1/2
12-13/16
1/8
3-15/16
4-7/8
6-5/16
4-5/16
( 70° )
9-3/8
3/16
8-1/4
27/32
7-1/4
1/2
Piping
Insulation Ø2 O.D
Liquid line Ø3/8 19-11/16 (Flared connection Ø3/8)
Gas line Ø1/2 16-15/16 (Flared connection Ø5/8)
Drain hose Insulation Ø1-1/8 Connected part Ø5/8 O.D
Air out
Piping
Drain hose
7/16×1 Oblong hole 7/16×3/4 Oblong hole
Installation plate
Indoor unit
Wall hole Ø 3
Air in Installation plate
3/4
6-1/4
2-5/16
OBH548D

9
MSZ-GE06NA MSZ-GE09NA MSZ-GE12NA MSZ-GE15NA MSZ-GE18NA
MSY-GE09NA MSY-GE12NA MSY-GE15NA MSY-GE18NA
5WIRING DIAGRAM
MSZ-GE06NA- 8 MSZ-GE09NA- 8 MSZ-GE12NA- 8 MSZ-GE15NA- 8 MSZ-GE18NA- 8
MSY-GE09NA- 8 MSY-GE12NA- 8 MSY-GE15NA- 8 MSY-GE18NA- 8
OBH548D

10
MSZ-GE06NA- 9 MSZ-GE09NA- 9 MSZ-GE12NA- 9 MSZ-GE15NA- 9 MSZ-GE18NA- 9
MSY-GE09NA-
9 MSY-GE12NA- 9 MSY-GE15NA- 9 MSY-GE18NA- 9
MSZ-GE24NA
MSY-GE24NA
OBH548D