Mitsubishi Electric MSZ-D30NA User manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES······································· 3
2. PART NAMES AND FUNCTIONS····················· 4
3. SPECIFICATION················································ 5
4. OUTLINES AND DIMENSIONS ························ 7
5. WIRING DIAGRAM············································ 8
6. REFRIGERANT SYSTEM DIAGRAM ··············· 9
7. SERVICE FUNCTIONS ··································· 10
8. MICROPROCESSOR CONTROL ··················· 12
9. TROUBLESHOOTING····································· 19
10. DISASSEMBLY INSTRUCTIONS···················· 32
Models
MSZ-D30NA MSZ-D30NA- 8
MSZ-D36NA MSZ-D36NA- 8
MSY-D30NA MSY-D30NA- 8
MSY-D36NA MSY-D36NA- 8
No. OBH501
REVISED EDITION-C
INDOOR UNIT
Outdoor unit service manual
MUZ-D•NA Series (OBH502)
MUY-D•NA Series (OBH502)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
PARTS CATALOG (OBB501)
Please void OBH501 REVISED EDITION-B.
Revision C:
• MSZ-D30/D36NA- 8and
MSY-D30/D36NA-
8have been added.
DAC-1

2
Revision A:
• 3. SPECIFICATION has been corrected.
Revision B:
• 3. SPECIFICATION has been corrected.
Powerful has 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.
Revision C:
• MSZ-D30/D36NA- 8and MSY-D30/D36NA- 8have been added.

3
MSZ-D30NA MSZ-D36NA MSY-D30NA MSY-D36NA
1. New model
MSZ-D30NA MSZ-D36NA - 8
1. Electronic control P.C. board has been changed.
MSZ-D36NA MSZ-D36NA - 8
1. Electronic control P.C. board has been changed.
MSY-D30NA MSY-D30NA - 8
1. Electronic control P.C. board has been changed.
MSY-D36NA MSY-D36NA - 8
1. Electronic control P.C. board has been changed.
TECHNICAL CHANGES
1

4
Remote controller
Operation indicator
lamp
Remote control
receiving section
Emergency operation
switch
Horizontal vane
Air outlet
Air filter
(Catechin air filter)
Air inlet
Front panel
Air cleaning filter
(Anti-Allergy Enzyme Filter)
ACCESSORIES
MSZ-D30NA MSZ-D36NA MSY-D30NA MSY-D36NA
MSZ-D30NA
MSZ-D36NA
MSY-D30NA
MSY-D36NA
Installation plate 1
Installation plate screw 4 × 25 mm 7
Remote controller holder 1
Screw for 3.5 × 1.6 mm (Black) 2
Battery (AAA) for remote controller 2
Wireless remote controller 1
Felt tape (Used for left or left-rear piping) 2
L-Joint pipe 1
Conduit plate 1
Air cleaning filter 2
PART NAMES AND FUNCTIONS
2

5
Model MSZ-D30NA MSY-D30NA MSZ-D36NA MSY-D36NA
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
Low - Med. - High
- Powerful
COOL Dry
(Wet)
CFM
389 - 639 - 848 - 887
(350 - 576 -763 - 798)
HEAT Dry 445 - 639 - 848 - 887 — 445 - 639 - 848 - 887 —
Moisture removal pt./h 9.9 11.3 11.9
Sound level
Low - Med. - High
- Powerful
Cooling
dB(A)
32 - 42 - 49 -51
Heating 34 - 42 - 49 - 50 — 34 - 42 - 49 - 50 —
Cond. drain connection O.D. in. 5/8
Dimensions
W
in.
46-1/16
D 11-5/8
H 14-3/8
Weight Ib. 40
External finish Munsell 1.0Y 9.2/0.2
Remote controller Wireless type
Control voltage (by built-in transformer) 12-24 VDC
NOTE : Test conditions are based on AHRI 210/240.
SPECIFICATION
3