MSZ-GA00VA Indoor Unit
Product Information
The product is a split-type, heat pump air conditioner with
wireless capability. The indoor unit is described in this service
manual.
Wireless type models:
- MSZ-GA50VA – A1 (WH)
- MSZ-GA60VA – A1 (WH)
- MSZ-GA71VA – A1 (WH)
Outdoor unit service manual: MXZ-8A140VA1 (OC316)
Parts List
Indoor Unit Structural Parts
- E02 527 970 – Installation Plate
- E02 685 234 – Box (WH)
- E02 888 000 – Front Panel Assembly (WH)
- E02 408 142 – Catch
- E02 685 067 – Screw Cap (WH)
- E02 888 010 – Grille (WH)
- E02 534 100 – Catechin Air Filter
- E02 685 975 – Corner Box Right
- – Air Cleaning Filter
- E02 918 007 – Lamp Panel
Indoor Unit Heat Exchanger
- E02 851 620 – Indoor Heat Exchanger
- E02 819 620 – Indoor Heat Exchanger
- E02 179 667 – Union (Gas)
- E02 138 666 – Union (Gas)
- E02 151 667 – Union (Liquid)
- E02 527 667 – Union (Liquid)
Indoor Unit Functional Parts and Electrical Parts
- E02 527 302 – Line Flow Fan
- E02 408 509 – Bearing Mount
- E02 001 504 – Sleeve Bearing
- E02 408 702 – Drain Hose
- E02 527 235 – Nozzle (WH)
- E02 685 040 – Vane Upper (WH)
- E02 685 041 – Vane Lower (WH)
- E02 127 382 – Fuse
- E02 661 385 – Varistor
- E02 527 034 – Vane Crank Set
- E02 918 300 – Indoor Fan Motor Assembly W1 MF
- E02 448 303 – Vane Motor (Vertical)
- E02 408 303 – Vane Motor (Horizontal)
- E02 918 333 – Motor Band
- E02 918 329 – Display P.C. Board
- E02 918 468 – Receiver P.C. Board
- E02 996 452 – Electronic Control P.C. Board W2
- E02 997 452 – Electronic Control P.C. Board W2
- E02 998 452 – Electronic Control P.C. Board W2
- E02 527 308 – Room Temperature Thermistor RT11
- E02 918 375 – Terminal Block TB
- E02 918 920 – Indoor Coil Thermistor RT12, RT13
- E02 307 307 – Indoor Coil Thermistor RT12, RT13
- E02 528 034 – Vane Motor Support Set (Right)
- E02 529 034 – Vane Motor Support Set (Left)
Product Usage Instructions
To use the product, follow these steps:
- Install the indoor unit using the installation plate (E02 527
970). - Connect the necessary structural parts, such as the box (E02
685 234) and front panel assembly (E02 888 000). - Attach the catch (E02 408 142) and screw cap (E02 685
067). - Install the grille (E02 888 010) and catechin air filter (E02
534 100). - Connect the corner box right (E02 685 975).
- Install the air cleaning filter (not specified).
- Attach the lamp panel (E02 918 007).
- Connect the indoor heat exchanger and unions as indicated in
the diagram. - Install the line flow fan (E02 527 302) and bearing mount (E02
408 509). - Connect the necessary functional and electrical parts, such as
the sleeve bearing (E02 001 504), drain hose (E02 408 702), nozzle
(E02 527 235), vane upper (E02 685 040), vane lower (E02 685 041),
fuse (E02 127 382), varistor (E02 661 385), vane crank set (E02 527
034), indoor fan motor assembly (E02 918 300), vane motors (E02 448
303 and E02 408 303), motor band (E02 918 333), display P.C. board
(E02 918 329), receiver P.C. board (E02 918 468), electronic
control P.C. boards (E02 996 452, E02 997 452, and E02 998 452),
room temperature thermistor (E02 527 308), terminal block (E02 918
375), indoor coil thermistors (E02 918 920 and E02 307 307), and
vane motor support sets (E02 528 034 and E02 529 034).
Please refer to the provided diagram and consult the full user
manual for more detailed instructions.
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
INDOOR UNIT
SERVICE MANUAL
Wireless type Models
MSZ-GA50VA – A1 (WH) MSZ-GA60VA – A1 (WH) MSZ-GA71VA – A1 (WH)
No. OB419
MSZ-GA50VA – A1 MSZ-GA60VA – A1 MSZ-GA71VA – A1
Outdoor unit service manual MXZ-8A140VA1 (OC316)
CONTENTS
1. TECHNICAL CHANGES ····································2 2. PART NAMES AND FUNCTIONS······················3 3. SPECIFICATION·················································5 4. NOISE CRITERIA CURVES ·······························6 5. OUTLINES AND DIMENSIONS ·························7 6. WIRING DIAGRAM ············································8 7. REFRIGERANT SYSTEM DIAGRAM ················9 8. SERVICE FUNCTIONS ····································10 9. TROUBLESHOOTING······································12 10. DISASSEMBLY INSTRUCTIONS·····················24 11. PARTS LIST······················································27
NOTE: This service manual describes technical data of the indoor unit.
11 PARTS LIST
MSZ-GA50VA – A1 (WH) MSZ-GA60VA – A1 (WH) MSZ-GA71VA – A1 (WH) 11-1. INDOOR UNIT STRUCTURAL PARTS
11-2. INDOOR UNIT HEAT EXCHANGER
1
2 11
3
4
CATCH
5
SCREW CAP
6
8 9 (See 11-5.)
12 13
7
11-1. INDOOR UNIT STRUCTURAL PARTS
Part number that is circled is not shown in the illustration.
No. Part No.
Part Name
1 E02 527 970 INSTALLATION PLATE
2 E02 685 234 BOX (WH)
3 E02 888 000 FRONT PANEL ASSEMBLY(WH)
4 E02 408 142 CATCH
5 E02 685 067 SCREW CAP (WH)
6 E02 888 010 GRILLE (WH)
7 E02 534 100 CATECHIN AIR FILTER
8 E02 685 975 CORNER BOX RIGHT
9
–
AIR CLEANING FILTER
10 E02 918 007 LAMP PANEL
Symbol in Wiring Diagram
MSZ-GA50 VA – A1
(WH)
1 1 1 4 3 1 2 1 2 1
Q’ty/unit
MSZ-GA60 VA – A1
(WH)
1 1 1 4 3 1 2 1 2 1
MSZ-GA71 VA – A1
(WH)
Remarks
1
1
1
Including No.4,5,6
4
4PCS/ SET
3
3PCS/ SET
1
2
1
2
MAC-2300FT
1
11-2. INDOOR UNIT HEAT EXCHANGER
11
E02 851 620 E02 819 620
INDOOR HEAT EXCHANGER INDOOR HEAT EXCHANGER
12
E02 179 667 E02 138 666
UNION (GAS) UNION (GAS)
13
E02 151 667 E02 527 667
UNION (LIQUID) UNION (LIQUID)
1
1
1
1
{12.7
1
1
{15.88
1
1
{6.35
1
{9.52
26
MSZ-GA50VA – A1 (WH) MSZ-GA60VA – A1 (WH) MSZ-GA71VA – A1 (WH)
11-3. INDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS
1
20
19
2
3
SLEEVE BEARING
4
12
5
11 18 ROOM
TEMPERATURE THERMISTOR
6
14
13
17
10
7
11-4. ACCESSORY AND REMOTE CONTROLLER
23
24
FUSE 8
9 VARISTOR 15 16 17 SW P.C. BOARD
11-3. INDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS
Part numbers that are circled are not shown in the illustration.
No. Part No.
Part Name
Symbol in Wiring Diagram
MSZ-GA50 VA – A1
(WH)
Q’ty/unit
MSZ-GA60 VA – A1
(WH)
MSZ-GA71 VA – A1
(WH)
Remarks
1 E02 527 302 LINE FLOW FAN
1
1
1
2 E02 408 509 BEARING MOUNT
1
1
1
3 E02 001 504 SLEEVE BEARING
1
1
1
4 E02 408 702 DRAIN HOSE
1
1
1
5 E02 527 235 NOZZLE (WH)
1
1
1
6 E02 685 040 VANE UPPER (WH)
1
1
1
7 E02 685 041 VANE LOWER (WH)
1
1
1
8 E02 127 382 FUSE
F11
1
1
1
3.15A
9 E02 661 385 VARISTOR
NR11
1
1
1
10 E02 527 034 VANE CRANK SET
1
1
1
11 E02 918 300 INDOOR FAN MOTOR ASSEMBLY W1 MF
1
1
1
RC0J56 –
12 E02 448 303 VANE MOTOR (VERTICAL)
MV2
2
2
2
RIGHT & LEFT
13 E02 408 303 VANE MOTOR (HORIZONTAL)
MV1
1
1
1
UP & DOWN
14 E02 918 333 MOTOR BAND
1
1
1
15 E02 918 329 DISPLAY P.C. BOARD
1
1
1
16 E02 918 468 RECEIVER P.C. BOARD E02 996 452 ELECTRONIC CONTROL P.C. BOARD W2
1
1
1
1
AUTO RESTART
17 E02 997 452 ELECTRONIC CONTROL P.C. BOARD W2 E02 998 452 ELECTRONIC CONTROL P.C. BOARD W2
1
AUTO RESTART
1
AUTO RESTART
18 E02 527 308 ROOM TEMPERATURE THERMISTOR RT11
1
1
1
19 E02 918 375 TERMINAL BLOCK
TB
1
1
1
20
E02 E02
918 920
307 307
INDOOR COIL THERMISTOR INDOOR COIL THERMISTOR
RT12, RT13
1
RT12, RT13
1
1
21 E02 528 034 VANE MOTOR SUPPORT SET(RIGHT)
1
1
1
22 E02 529 034 VANE MOTOR SUPPORT SET(LEFT)
1
1
1
W1 Including FAN MOTOR RUBBER MOUNT W2 Including SW P.C. BOARD
11-4. ACCESSORY AND REMOTE CONTROLLER
23 E02 918 426 REMOTE CONTROLLER 24 E02 527 083 REMOTE CONTROLLER HOLDER
1
1
1
KM05C
1
1
1
27

















