Mitsubishi Electric MSH-A18ND-S1 User manual

CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················2
3. SPECIFICATION·················································4
4. OUTLINES AND DIMENSIONS ·························5
5. WIRING DIAGRAM ············································6
6. REFRIGERANT SYSTEM DIAGRAM················7
7. SERVICE FUNCTIONS ······································8
8. TROUBLESHOOTING······································10
9. DISASSEMBLY INSTRUCTIONS ····················18
10. PARTS LIST······················································20
11. RoHS PARTS LIST···········································23
SPLIT-TYPE, HEAT PUMPAIR CONDITIONERS
Outdoor unit service manual
MUH-A·ND Series (OB428)
MSH-A18ND
MSH-A24ND
TM
Wireless type
Models
MSH-A18ND -
MSH-A24ND - S1
S1
SERVICE MANUAL
INDOOR UNIT No. OB427
REVISED EDITION-B
Please void OB427 REVISED EDITION-A.
Revision B:
•Remote controller model has been changed.
•RoHS PARTS LIST has been added.
NOTE:
This service manual describes technical data of the indoor units.
RoHS compliant products have <G> mark on the spec name plate.
For servicing of RoHS compliant products, refer to the RoHS PARTS LIST (RoHS compliant).
OB427B-1.qxp 07.5.16 3:30 PM Page 1
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TECHNICAL CHANGES
2
1
PART NAMES AND FUNCTIONS
2
INDOOR UNIT
Grille
Air inlet
Remote controller
Remote control
receiving section
Air cleaning filter
(White bellows type)
Horizontal vane
Vertical vanes
Catechin air filter
(When the grille is opened)
Operation section Display section
Emergency operation switch
Operation indicator lamp
Remote control
receiving section
Front panel
MSH-A18ND
MSH-A24ND
MSH-18TN - ➔MSH-A18ND -
MSH-24TN - ➔MSH-A24ND -
1. Model name has been changed.
2. Grille design has been changed.
3. Unit size has been changed.(W 1,015a o H 320a o D 190a➔W 1,100a o H 325a o D 258a)
4. Electricity receiving unit has been changed from indoor unit to outdoor unit.
S1S1
S1S1
ACCESSORIES
1
2
3
4
5
6
7
8
Installation plate
Installation plate fixing screw 4 o25 mm
Remote controller holder
Fixing screw for 3o3.5 o1.6 mm (Black)
Battery (AAA) for remote controller
Wireless remote controller
Air cleaning filter
Felt tape (Used for left or left-rear piping)
1
7
1
2
2
1
2
1
MSH-A18ND
MSH-A24ND
Revision A:
•Parts No. of 10.PARTS LIST has been revised.
Revision B:
•Remote controller model has been changed. (KP0A ➔KM04A)
Both remote controllers can be used as alternative.
•RoHS PARTS LIST has been added.
OB427B-1.qxp 07.5.17 7:35 AM Page 2
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REMOTE CONTROLLER
MSH-A18ND
MSH-A24ND
3
ON/OFF
TOO
COOL
PM
AM
TOO
WARM
ON/OFF
FAN
TOO
WARM TOO COOL
VANE
MODE
ECONO COOL
STOP
START
HR.
MIN.
WIDE VANE
LONG
I FEEL COOL
HEAT
DRY
PM
CLOCK
AM
RESET CLOCK
Open the front lid.
Signal transmitting section
Operation display section
OPERATE /STOP
(ON /OFF) button
TEMPERATURE buttons
OPERATION SELECT button
FAN SPEED CONTROL button
OFF-TIMER button
HR. button
MIN. button
(TIME SET button)
ON-TIMER button
RESET button
ECONO COOL button
VANE button
(Horizontal vane button)
CLOCK SET button
LONG button
WIDE VANE button
(Vertical vane button)
Indication of remote controller
model is on back.
OB427B-1.qxp 07.5.16 3:30 PM Page 3
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SPECIFICATION
4
3
Indoor model
Function
Power supply
Air flow
(High/Med./Low)
Running current
Power input
Power factor
Model
Current
Winding
resistance (at 20:)
Dimensions WOHOD
Weight
Air direction
Sound level (High/Med./Low)
Fan speed (High/Med./Low)
Fan speed regulator
Remote controller model
K/h
A
W
%
A
"
mm
kg
dB
rpm
Single phase
220V, 60Hz
768/642/516
0.28
60
97
RC4N32-AA
0.28
WHT-BLK 205.5
BLK-RED 217.6
1,100O325O258
16
5
42/37/32
1,070/920/780
3
KP0A, KM04A
Cooling Heating Cooling
954/822/684
1,280/1,130/970
Heating
954/834/726
1,280/1,150/1,020
Single phase
220V, 60Hz
0.37
81
99
RC4V40-AA
0.37
WHT-BLK 138.2
BLK-RED 159.0
1,100O325O258
16
5
47/42/37
3
KP0A, KM04A
Electrical
data
Fan
motor
Special
remarks
Capacity
MSH-A18ND MSH-A24ND
NOTE: Test conditions are based on ISO 5151.
Cooling : Indoor DB27°C WB19°C Heating : Indoor DB20°C WB 15.5°C
Outdoor DB35°C WB(24°C) Outdoor DB 7°C WB 6°C
Indoor-Outdoor piping length : 5m
Test conditions are based on SSA 356/366.
Cooling : Indoor DB29°C WB19°C Heating : Indoor DB21°C
Outdoor DB46°C WB24°C Outdoor DB 7°C WB 6°C
Indoor-Outdoor piping length : 7.5m
OB427B-1.qxp 07.5.16 3:30 PM Page 4
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5
OUTLINES AND DIMENSIONS
4
258
162
19
58
47
7.5
315
255.547
2.5
98 173
98 173414.5 414.5
5
253
791
56
1068
1100
325
Air out
Air in
Insulation [28
Drain hose [16
(Connected part O.D)
Installation plate
Wall hole [75
Wireless remote controller
Installation plate Indoor unit
{
Liquid line [6.35-0.5m
Gas line [12-0.43m
Insulation [50 O.D
[32 I.D
{
Liquid line [9.52-0.5m
Gas line [12-0.43m
Insulation [50 O.D
[32 I.D
for MSH-A18ND
for MSH-A24ND
INDOOR UNIT
MSH-A18ND
MSH-A24ND Unit: mm
OB427B-1.qxp 07.5.16 3:30 PM Page 5
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