Mitsubishi Electric Mr. Slim Series Operating manual

CONTENTS
1. REFERENCE MANUAL ···································· 2
2. PARTS NAMES AND FUNCTIONS ·················· 3
3. SPECIFICATION················································ 4
4. NOISE CRITERIA CURVES ······························ 5
5. OUTLINES AND DIMENSIONS ························ 7
6. WIRING DIAGRAM·········································· 10
7. REFRIGERANT SYSTEM DIAGRAM ············· 14
8 TROUBLESHOOTING······································ 18
9. DISASSEMBLY PROCEDURE ······················· 23
PARTS CATALOG (OCB598)
HFC
utilized
R410A
SPLIT-TYPE, AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
No. OCH598
REVISED EDITION-B
July 2016
Notes:
This manual describes service
data of outdoor unit only.
RoHS compliant products
have <G> mark on the spec
name plate.
[Model Name]
PU-P18VAKD
PU-P24VAKD
PU-P30VAKD
PU-P36VAKD
PU-P36YAKD
PU-P42YAKD
[Service Ref.]
PU-P18VAKD.TH
PU-P18VAKD.TH-D PU-P18VAKD.TH-N
PU-P24VAKD.TH
PU-P24VAKD.TH-D PU-P24VAKD.TH-N
PU-P30VAKD.TH
PU-P30VAKD.TH-D PU-P30VAKD.TH-N
PU-P36VAKD.TH
PU-P36VAKD.TH-D PU-P36VAKD.TH-N
PU-P36YAKD.TH
PU-P36YAKD.TH-D PU-P36YAKD.TH-N
PU-P42YAKD.TH
PU-P42YAKD.TH-D PU-P42YAKD.TH-N
PU-P18VAKD
Revision:
Added PU-P42YAKD.TH,
PU-P42YAKD.TH-D, and
PU-P42YAKD.TH-N in
REVISED EDITION-B.
Some description has been
modified.
OCH598 REVISED EDITION-A
is void.

3
PARTS NAMES AND FUNCTIONS
2
Air outlet
Drain outlet
Piping
Drain hose
Air inlet
(back and side)
PU-P18VAKD
PU-P24VAKD PU-P30VAKD
Piping
Air outlet
Drain outlet
Air inlet
(back and side)
Drain hose
Air outlet
Air inlet
Air inlet
Air outlet
PU-P36VAKD PU-P36YAKD
PU-P42YAKD
Note: Unit of pressure is based on ISO (International Standardization Organization)
[kgf/cm2] [MPa] (1MPa=10.2kgf/cm2)
OCH598B

4
SPECIFICATION
3
Outdoor model PU-P18VAKD PU-P24VAKD PU-P30VAKD
Function Cooling
Power supply Single phase
220–240 V, 50 Hz
Compressor
Model RN196VHSMT PN25VAFMT NN33VAAMT
Output W 1,300 1,800 2,200
Compressor motor current A 6.90 8.87 11.48
Winding
resistance (at 20°C) C-R 1.99
C-S 4.06
C-R 1.23
C-S 2.31
C-R 0.68
C-S 1.80
Fan
motor
Model RA6V33-QA RA6V75-FA RA6V75-FA
Fan motor current
A
0.30 0.50 0.60
Winding
resistance (at 20°C) WHT-BLK 171
BLK-RED 226
WHT-BLK 71.5
BLK-RED 89.5
WHT-BLK 64.3
BLK-RED 84.0
Dimensions W H D mm 800 × 550 × 285 840 × 880 × 330 840 × 880 × 330
Weight kg 36 56 72
$LUÀRZ /h 1,860 3,174 3,018
Sound level (SPL) dB(A) 51 54 55
Fan speed rpm 850 830 830
Fan speed regulator 1
5HIULJHUDQW¿OOLQJ
capacity (R410A) kg 1.20 1.35 1.85
Refrigeration oil (Model) L 0.44 (FV50S) 0.67 (FV50S) 1.3 (FV50S)
Note: Test conditions are based on ISO5151.
Cooling: Indoor Dry-bulb temperature 27 Wet-bulb temperature 19
Outdoor Dry-bulb temperature 35 Wet-bulb temperature 24
Indoor-Outdoor piping length: 7.5 m
Outdoor Voltage: PU-P·VAKD: 1ph 230 V
PU-P·YAKD: 3ph 400 V
Outdoor model PU-P36VAKD PU-P36YAKD PU-P42YAKD
Function Cooling
Power supply Single phase
220–240 V, 50 Hz
3 phase
380–415 V, 50 Hz
Compressor
Model NN40VAGMT NN40YCGMT BN65YFPMT
Output W 2,700 2,700 4,600
Compressor motor current A 14.08 3.58 7.58
Winding
resistance (at 20°C) C-R 0.63
C-S 1.55
U-V-W
3.32
U-V-W
1.79
Fan
motor
Model PK6V60-UB PK6V60-UB PK6V65-UB
Fan motor current
A
1.22 1.22 1.12
Winding
resistance (at 20°C) WHT-BLU 119
BLU-RED 83
WHT-BLU 119
BLU-RED 83
WHT-BLU 90.4
BLU-RED 89.6
Dimensions W H D mm 870 × 1258× 295 870 × 1258× 295 970 × 1258× 345
Weight kg 85 85 108
$LUÀRZ /h 3,350 3,350 3,530
Sound level (SPL) dB(A) 54 54 56
Fan speed rpm 720 720 780
Fan speed regulator 1
5HIULJHUDQW¿OOLQJ
capacity (R410A) kg 2.3 2.3 2.8
Refrigeration oil (Model) L 1.3 (FV50S) 1.3 (FV50S) 1.2 (FV50S)
OCH598B

7
PU-P18VAKD.TH PU-P18VAKD.TH-D PU-P18VAKD.TH-N
OUTLINES AND DIMENSIONS
5
Air in
Air out
Air in
Service port
Handle
500 Bolt pitch for installation
Service panel
Liquid refrigerant pipe joint
Refrigerant pipe (flared) ø6.35
Gas refrigerant pipe joint
Refrigerant pipe (flared) ø12.7
10
69
800
302.5
150
22.3
550
280
164.5
99.5
170.5
23
285
344.5
44
400
17.5
Bolt pitch for
installation
304~325
40
43°
35°
2-holes 10x21
Drain hole ø42
REQUIRED SPACE Basically, leave this space open.
Only if front and both sides are open,
leave 100 mm at minimum.
350mm or more
200mm or more
100mm or more
100mm or more
Leave any 2 sides
among right, left or rear open.
8QLWPP
417.5
40
42
Drain hole
175 500
330
50
Air in
Air in
Air out
2-holes 10 21
360
840
109
81
880
452
Service panel
99.5
164.5
195
35
44
Liquid refrigerant pipe joint
Refrigerant pipe (flared) Ø 6.35
Gas refrigerant pipe joint
Refrigerant pipe (flared) Ø 15.88
350 mm or more
100 mm or more
REQUIRED SPACE
Basically, leave this space open.
Only if front and both sides are open,
leave 500 mm at minimum.
100 mm or more
Basically, leave this space open.
If rear, top and both sides are open,
leave 500 mm at minimum.
8QLWPP
PU-P24VAKD.TH PU-P24VAKD.TH-D PU-P24VAKD.TH-N
PU-P30VAKD.TH PU-P30VAKD.TH-D PU-P30VAKD.TH-N
OCH598B

8
PU-P36VAKD.TH PU-P36VAKD.TH-D PU-P36VAKD.TH-N
PU-P36YAKD.TH PU-P36YAKD.TH-D PU-P36YAKD.TH-N
Front opening
2-U-shaped
notched holes
(refrigerant,
drainage and wiring)
Knock out hole
for right piping
Front right piping holes -
detail figures
piping hole
Bottom
2-12×23 Oval holes
(standard bolt M10)
Drain hole
Drain hole
Standard bolt length
Knock out holes for
SRZHUOLQHij
Service space
upper clearance.
Note : Allow adequate
Outdoor Unit - necessary surrounding clearance
Air intake
Air intake
Air outlet
Side air intake
Rear fresh
air intake
Rear piping hole
Handle
for moving
For 10 units or less
The upper side must be open.
(Concentrated installation)
Outdoor Unit - necessary surrounding clearance
Refrigerant-pipe flared
FRQQHFWLRQOLTXLGij)
Refrigerant-pipe flared
FRQQHFWLRQJDVij)
Terminal block for power line
Handle for moving
(refrigerant,drainage
and wiring)
Knock out hole
for front piping
Handle
for moving
Service panel
Terminal block for
indoor and outdoor
unit connection
installation hole
Outlet guide


300
300
R20

R20
12
R6


10
33
23
PD[


10
1000
100
10 10

 
302
  
40 
  61 

60 60
120
 
 24





104





362
330
OCH598B

9
NOTE : ALLOW ADEQUATE
UPPER CLEARANCE.
OUTDOOR UNIT - NECESSARY SURROUNDING CLEARANCE
THE UPPER SIDE MUST BE OPEN.
OUTDOOR UNIT - NECESSARY SURROUNDING CLEARANCE
(CONCENTRATED INSTALLATION)
FRONT OPENING
(REFRIGERANT,DRAINAGE
AND WIRING)
(REFRIGERANT,DRAINAGE
AND WIRING)
352
970
REAR PIPING HOLE
(STANDARD BOLT M10)
HANDLE FOR MOVING
AIR INTAKE
483
392
REFRIGENRANT-PIPE FLARED
&211(&7,21*$66ij)
REFRIGENRANT-PIPE FLARED
&211(&7,21/,48,'ij)
12
17
R6
FRONT RIGHT PIPING HOLES -
DETAIL FIGURES
65
80
R20
R20
STANDARD BOLT LENGTH
25 MAX.
300150
SERVICE SPACE
500
1010
500
10
345
150
300
10
FOR 10 UNITS OR LESS
1000
959
38015
52
600
HANDLE
FOR MOVING
REAR FRESH
AIR INTAKE
95
138
23
SIDE AIR INTAKE
30
33
7
SERVICE PANEL
TERMINAL BLOCK FOR
INDOOR AND OUTDOOR
UNIT CONNECTION
TERMINAL BLOCK FOR POWER LINE
BOTTOM
PIPING HOLE
KNOCK OUT HOLE FOR FRONT PIPING
2-U-SHAPED
NOTCHED HOLES
ij+2/(
(STANDARD BOLT M10)
2-12×23 OVAL HOLES
DRAIN HOLE
DRAIN HOLE
104
39
OUTLET GUIDE
AIR OUTLET GUIDE
INSTALLATION HOLE
HANDLE FOR MOVING
345 585
524
83 524 61 524
1258
60
90
KNOCK OUT HOLE FOR RIGHT PIPING
KNOCK OUT HOLES FOR 32:(5/,1(ij
60
120
53 45
AIR OUTLET
AIR INTAKE
185 185
17
27.539.5
412
PU-P42YAKD.TH PU-P42YAKD.TH-D PU-P42YAKD.TH-N
OCH598B

SYMBOL NAME SYMBOL NAME SYMBOL NAME
COMPRESSOR
(INNER PROTECTOR)
TERMINAL BLOCK
(POWER SUPPLY)
FAN MOTOR
(INNER FUSE)
TERMINAL BLOCK
(CONNECTING WIRES INDOOR/OUTDOOR)
C1
C2
52C
TB2
COMPRESSOR CAPACITOR
FAN MOTOR CAPACITOR
COMPRESSOR CONTACTOR
MC
MF
TB1
YE
TB2
1
2
TB1
COM
BU
RD
OG
BU
C1
POWER SUPPLY
~ /N 220-240 V 50Hz
R
52C
BK
MC
C
WH
RD
S
N
L
TO INDOOR UNIT
12 V DC
MF
C2
BK
BU
WH WH
RD RD
1 1
3 3
WH
M
1~
M
1~
NO
SYMBOL NAME SYMBOL NAME SYMBOL
COMPRESSOR
(INNER PROTECTOR)
TERMINAL BLOCK
(POWER SUPPLY)
FAN MOTOR
(INNER THERMOSTAT)
TERMINAL BLOCK
(CONNECTING WIRES INDOOR/OUTDOOR)
MF TB2
52C
COMPRESSOR CONTACTOR X1 52C RELAY
C1 MC TB1
C2
FAN MOTOR CAPACITOR
COMPRESSOR CAPACITOR
RD RD
TB1
BU
X1
NO
OG
COM
2
1
TB2
YE
RD
L
N
11
MF
4 4
OG
RD
BK
WH
BU
WH
OG
RD
S
RD
WH
C
MC
BK
A2 A1
R/1/L1 U/2/T1
52C
R
C2
C1
BU
W/6/T3
T/5/L3
BU
POWER SUPPLY
~/N
220-240 V 50Hz
TO INDOOR UNIT
12 V DC
M
1~
M
1~
NAME
10
6WIRING DIAGRAM
PU-P18VAKD.TH PU-P18VAKD.TH-D PU-P18VAKD.TH-N
PU-P24VAKD.TH PU-P24VAKD.TH-D PU-P24VAKD.TH-N
PU-P30VAKD.TH PU-P30VAKD.TH-D PU-P30VAKD.TH-N
OCH598B

SYMBOL NAME SYMBOL NAME SYMBOL NAME
COMPRESSOR
(INNER THERMOSTAT)
TERMINAL BLOCK
(CONNECTING WIRES INDOOR/OUTDOOR)
FAN MOTOR
(INNER THERMOSTAT)
TERMINAL BLOCK
(POWER SUPPLY)
MC
MF3, 4
SA
TB1
C
C3, 4
F2
HC
COMPRESSOR CAPACITOR
FAN MOTOR CAPACITOR
FUSE (6.3A/250V) SURGE ABSORBER
CRANKCASE HEATER
TB3
X1
52C
52C RELAY
COMPRESSOR CONTACTOR
POWER SUPPLY
~/N 220-230-240V
50Hz
1
2
TB3
TO INDOOR UNIT
12 V DC
MF3
OG
M
1~
RD
WH
BU
OG
RD
WH
BU
C3
44
11
RD
N
L
M
1~
C
R
S
MF4
OG
M
1~
RD
WH
BU
OG
RD
WH
BU
C4
44
11
52C
X1
TB1
N
52C
X1
E
F2
SA
1
HC
COM
OG
L1/1
L3/5
T1/2
T3/6BU
A2
A1
2
1
2
31
32
52C
GNYE
RD BU
GY BK
RD
WH RD
BK
WH
RD
WH
MC
RD
BU
BU
L1/R
GY
NO
C
11
PU-P36VAKD.TH PU-P36VAKD.TH-D PU-P36VAKD.TH-N
OCH598B

12
PU-P36YAKD.TH PU-P36YAKD.TH-D PU-P36YAKD.TH-N
POWER SUPPLY
3N~ 380-400-415 V
50Hz
1
2
N
TB3
TO INDOOR UNIT
12 V DC
MF3
OG
M
1~
RD
WH
BU
OG
RD
WH
BU
C3
44
11
BU
RD
L3
L2
L1
M
3~
W
U
V
MF4
OG
M
1~
RD
WH
BU
OG
RD
WH
BU
C4
44
11
52C
X6
X14
TB1
51C
52C
X6
X14
F3
47
F1
F2
SA
C
A47
1
2
AB52C52CP1 P3
L1/1
L2/3
L3/5
2/T1
4/T2
6/T3
CP
WH
BK
A1
A2
96
95
14
13
51C52C
GNYE
RD
BU
YE OG GY
VT VT BN
YE
RD
WH
BK
BU
BK
RD
WH
BK
WH
RD
WH +
-
~
~
E
N
L3/T
L2/S
L1/R
MC
RD WH BU
L2/S L3/T L1/R
SYMBOL NAME SYMBOL NAME SYMBOL NAME
COMPRESSOR
(INNER THERMOSTAT)
FAN MOTOR
(INNER THERMOSTAT)
TERMINAL BLOCK
(POWER SUPPLY)
TERMINAL BLOCK
(CONNECTING WIRES INDOOR/OUTDOOR)
MC
MF3, 4
TB1
TB3
CP
C3, 4
F1, 2
F3
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE (6.3A/250V)
FUSE (5.0A/250V)
SA
47
51C
52C
SURGE ABSORBER
ANTI-PHASE PROTECTOR
THERMAL RELAY
COMPRESSOR CONTACTOR
OCH598B

13
PU-P42YAKD.TH PU-P42YAKD.TH-D PU-P42YAKD.TH-N
SYMBOL NAME SYMBOL NAME SYMBOL NAME
FAN MOTOR
(INNER THERMOSTAT)
SURGE ABSORBER
TERMINAL BLOCK
(POWER SUPPLY)
TERMINAL BLOCK
(CONNECTING WIRES INDOOR/OUTDOOR)
MF3, 4
SA
TB1
TB3
CP
C3, 4
F1, 2
F3
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE (6.3A/250V)
FUSE (5.0A/250V)
51C
52C
63H
63L
THERMAL RELAY
COMPRESSOR CONTACTOR
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
ANTI-PHASE PROTECTOR 47MC
Caution:
Prohibit: reverse-phase connection
The compressor will be damaged.
When the buzzer of reverse-phase protector sounds after the power supply is
turned on, this indicates reverse-phase connection. Please confirm the phase
of the power supply, and reconnect the power supply.
Caution:
Be sure to install N-line. Without N-line, it could cause damage to the unit.
POWER SUPPLY
3N~ 380 - 400 - 415 V
50Hz
1
2
N
TB3
TO INDOOR UNIT
12 V DC
MF3
OG
M
1~
RD
WH
BU
OG
RD
WH
BU
C3
44
11
BU
RD
L3
L2
L1
M
3~
W
U
V
MF4
OG
M
1~
RD
WH
BU
OG
RD
WH
BU
C4
4 4
11
52C
X6
X17
X14
TB1
63L
63H51C
52C
X6 X17
X14
F3
47
A C
L1/R
L2/S
L3/T
47
1
2
ABP1 52C 52C P3 P3 P2
L1/1
L2/3
L3/5
2/T1
4/T2
6/T3
CP
WH
BK
A1
A2
95
96
13 14
51C52C
F1
F2
SA
E
N
L3/T
L2/S
L1/R
RD
WH
BK
BU
BK
RD
RD
WH
BK
+
-
~
~
GNYE
MC
YE
GY
BK
RD RD
GY
WH WH
BK GY
RD
WH
RD
WH
BK
COMPRESSOR
(INNER THERMOSTAT)
BU
WH
OCH598B

14
8QLWPP
REFRIGERANT SYSTEM DIAGRAM
7
Capillary tube
ø3.0 x ø1.6 x 450
Stop valve
(with service port)
Stop valve
Compressor Strainer
#100
Outdoor heat
exchanger
Refrigerant pipe ø6.35
(with heat insulator)
Refrigerant pipe ø12.7
(with heat insulator)
Refrigerant flow in cooling
Flared connection
Flared connection
Muffler
ø38
Compressor
Flared connection
Flared connection
Stop valve
Stop valve
(with service port)
Capillary tube
ø 3.0 × ø 2.0 × 500
Refrigerant flow in cooling
Refrigerant pipe
ø 15.88
(with heat insulator)
Refrigerant pipe ø 6.35
(with heat insulator)
Strainer
#100
Outdoor heat
exchanger
PU-P18VAKD.TH PU-P18VAKD.TH-D PU-P18VAKD.TH-N
PU-P24VAKD.TH PU-P24VAKD.TH-D PU-P24VAKD.TH-N
OCH598B

15
8QLWPP
PU-P30VAKD.TH PU-P30VAKD.TH-D PU-P30VAKD.TH-N
Flared connection
Flared connection
Stop valve
Stop valve
(with service port)
Capillary tube
ø 4.0 × ø 2.4 × 600
Refrigerant flow in cooling
Compressor
Refrigerant pipe ø 15.88
(with heat insulator)
Refrigerant pipe ø 9.52
(with heat insulator)
Strainer
#100
Outdoor heat
exchanger
Accumulator
PU-P36VAKD.TH PU-P36VAKD.TH-D PU-P36VAKD.TH-N
PU-P36YAKD.TH PU-P36YAKD.TH-D PU-P36YAKD.TH-N
Charge
plug
[9.52
(3/8'')
Compressor
Stop valve
(With service port)
Ball
valve
Outdoor heat
exchanger
Charge
plug
Refrigerant flow
Capillary
tube
([3.0o[1.6-L350)o2pcs
Strainer #50
Strainer #50
[15.88
(5/8'')
Strainer #50
OCH598B

16
Charge
plug
[9.52
(3/8'')
Compressor
Stop valve
(With service port)
Outdoor heat
exchanger
Charge
plug
High
pressure
switch
Low
pressure
switch
Refrigerant flow
Capillary
tube
Strainer #50
Strainer #50
[15.88
(5/8'')
Strainer #50
Strainer
#100
Capillary tube ([3.0 o[2.0 -L600) o2pcs
Ball
valve
PU-P42YAKD.TH PU-P42YAKD.TH-D PU-P42YAKD.TH-N
OCH598B

17
Indoor
unit
Max. Height
difference
B*
Outdoor unit
Refrigerant Piping
Max. Length
A
MAX. HEIGHT DIFFERENCE
0$;5()5,*(5$173,3,1*/(1*7+DQG0$;+(,*+7',))(5(1&(
Refrigerant piping: m Piping size O.D: mm
Max. Length
A
Max. Height difference
BGas Liquid
PU-P18VAKD 30 10 12.7 6.35
PU-P24VAKD 30 10 15.88 6.35
PU-P30VAKD 30 15 15.88 9.52
PU-P36VAKD
PU-P36YAKD 40 30 15.88 9.52
PU-P42YAKD 50 30 15.88 9.52
$'',7,21$/5()5,*(5$17&+$5*(5$J
Model Outdoor unit
precharged
Refrigerant piping length (one way)
7.5 m 10 m 15 m 20 m 25 m 30 m 35 m 40 m 45 m 45 m
PU-P18VAKD 1,200
0
50 150 250 350 450 ņ ņ ņ ņPU-P24VAKD 1,350
PU-P30VAKD 1,850
PU-P36VAKD
PU-P36YAKD 2,300 75 225 375 525 675 825 975 ņ ņ
PU-P42YAKD 2,800 1125 1275
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3839<$.'383<$.';J JPî5HIULJHUDQWSLSLQJOHQJWKPí
Note: Refrigerant piping exceeding 7.5 m requires additional refrigerant charge according to the calculation.
*Height difference limitations are binding regardless of the height position at which either indoor or outdoor is placed higher.
OCH598B