Mitsubishi Electric MSZ-GL06NA-U1 User manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES································ 2
2. PART NAMES AND FUNCTIONS··················3
3. SPECIFICATION ········································6
4. OUTLINES AND DIMENSIONS ·····················8
5. WIRING DIAGRAM···································10
6. REFRIGERANT SYSTEM DIAGRAM ···········12
7. SERVICE FUNCTIONS······························13
8. MICROPROCESSOR CONTROL ················15
9. TROUBLESHOOTING·······························23
10. DISASSEMBLY INSTRUCTIONS·················41
No. OBH732
REVISED EDITION-C
Outdoor unit service manual
MUZ-GL•NA, MUY-GL•NA Series (OBH733)
MXZ-C•NA, MXZ-C•NAHZ Series (OCH573)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
PARTS CATALOG (OBB732)
MSZ-GL06NA -U1
MSZ-GL09NA -U1
MSZ-GL12NA -U1
MSZ-GL15NA -U1
MSZ-GL18NA -U1
MSZ-GL24NA -U1
Models
MSZ-GL18NA
MSY-GL18NA
INDOOR UNIT
Revision C:
• For the airflow of MSZ-GL24NA- U1 and MSY-
GL24NA- U1 on the specification table has
been corrected (3. SPECIFICATION).
OBH732 REVISED EDITION-A is void.
MSY-GL09NA -U1
MSY-GL12NA -U1
MSY-GL15NA -U1
MSY-GL18NA -U1
MSY-GL24NA -U1

2
MSZ-GL18NA - U1 MSY-GL18NA - U1
MSZ-GL24NA - U1 MSY-GL24NA - U1
1. New model
1TECHNICAL CHANGES
Use the specied 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.
Revision A:
• MSZ-GL06/09/12/15NA- U1 and MSY-GL09/12/15NA- U1 have been added.
Revision B:
• 3. SPECIFICATION has been corrected.
MSZ-GL06NA - U1 MSY-GL09NA - U1
MSZ-GL09NA - U1 MSY-GL12NA - U1
MSZ-GL12NA - U1 MSY-GL15NA - U1
MSZ-GL15NA - U1
1. New model
Revision C:
• For the airflow of MSZ-GL24NA- U1 and MSY-GL24NA- U1 on the specification table has been corrected
(3. SPECIFICATION).
OBH732C

3
2PART NAMES AND FUNCTIONS
MSZ-GL06NA MSZ-GL09NA MSZ-GL12NA MSZ-GL15NA
MSY-GL09NA MSY-GL12NA MSY-GL15NA
Remote controller
Operation indicator lamp
Remote control receiving section
Emergency operation switch
Horizontal vane
Air outlet
Air filter
Air inlet
Heat exchanger
Front panel
Air cleaning filter
(Anti-Allergy Enzyme
Filter)
(Nano platinum filter )
Display section
ACCESSORIES
Installation plate 1
Attachment screws for the installation plate
4 × 25 mm 5
Remote controller holder 1
Screws for 3.5 × 16 mm (Black) 2
Battery (AAA) for remote controller 2
Wireless remote controller 1
Felt tape (For left or left-rear piping) 1
Air cleaning lter 2
OBH732C

4
MSZ-GL18NA
MSY-GL18NA
ACCESSORIES
Installation plate 1
Installation plate xing 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
Air cleaning lter 2
Remote controller
Operation indicator lamp
Remote control receiving section
Emergency operation switch
Horizontal vane
Air outlet
Air filter
Air inlet
Heat exchanger
Front panel
Air cleaning filter
(Anti-Allergy Enzyme
Filter)
(Nano platinum filter )
Display section
OBH732C

5
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
Operation indicator lamp
Remote control receiving section
Emergency operation switch
MSZ-GL24NA
MSY-GL24NA
ACCESSORIES
Installation plate 1
Installation plate xing 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 lter 2
OBH732C