Mitsubishi PU12EK Operating manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, AIR CONDITIONERS
CONTENTS
1. FEATURES························································2
2. TECHNICAL CHANGE······································3
3. COMBINATION OF INDOOR AND OUTDOOR UNITS ··············4
4. PART NAMES AND FUNCTIONS·····················4
5. SPECIFICATIONS ·············································5
6. DATA··································································6
7. OUTLINES AND DIMENSIONS ························9
8. WIRING DIAGRAM··········································13
9. REFRIGERANT SYSTEM DIAGRAM ···················18
10. MICROPROCESSOR CONTROL····················19
11. TROUBLESHOOTING·····································21
12. DISASSEMBLY INSTRUCTIONS····················25
13. PARTS LIST·····················································29
<Outdoor unit>
Models
Outdoor unit
TM
PU12EK
PU18EK PU18EK1
PU24EK PU24EK1PU24EK2PU24EK3
PU30EK PU30EK1PU30EK2PU30EK3
PU36EK PU36EK1PU36EK2PU36EK3
PU42EK2 PU42EK21
PU42EK7 PU42EK71PU42EK72
No. OC247
REVISED EDITION-E
L
I
S
T
E
D
CUS
•Please void OC247 REVISED EDITION-D.
Revision:
•Wiring diagram for PU12EK has been modified in
”8. WIRING DIAGRAM”.
•Transformer and outdoor controller board for
PU12EK has been modified in ”13. PARTS LIST”.
Note:
•Refer to other manual as for Indoor Units.
Model name
indication
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2
1FEATURES
Rear
Right
Base
Front
1. REDI-CHARGED REFRIGERANT SYSTEM
The industry’s first redi-charged refrigerant system.
There is no need to adjust the amount of refrigerant to match the piping length
on- site unless lines exceed 100ft.
You will see a major reduction in installation time and labor costs.
2. HIGH RELIABILITY AND EASY SERVICING
In addition to the self-diagnostic function, units are also equipped with a 3-minute time delay mechanism (cooling), an auto
restart function, an emergency operation function, a test run switch, etc., to assure high reliability and easy servicing.
3. FOUR-WAY PIPING ACCESS MAKES
INSTALLATION LAYOUT EASY
Piping on the outdoor unit may be connected from either of
four directions: front, rear, side or beneath the base.
This easy-access design makes it possible to install a
number of units in a compact arrangement at a single site.
The outdoor unit allows for unheard-of flexibility in
determining a piping layout, thus greatly simplifying
installation.
4. FRONT-ACCESS FACILITATES
MAINTENANCE
The outdoor unit has been designed with a front-access
service panel that allows easy access to all maintenance
point, regardless of the installation layout. What’s more, this
front panel may be removed by loosening only two screws.
It all adds up to greatly simplified maintenance work.
Correction:
“13. PARTS LIST ” has been modified on page 33 and 43.
Model
Page
33
IncorrectRevise point Correct
PU12EK
FUNCTIONAL PARTS
No.12 CAPILLARY
TUBE
FUNCTIONAL PARTS
No.17 TRANSFORMER
FUNCTIONAL PARTS
No.20 OUTDOOR
CONTROLLER BOARD
T7W 588 425 T7W E07 425
T7W 850 799 T7W A30 799
T7W 850 315 T7W E08 315
43 PU42EK7
PU42EK71
PU42EK72
FUNCTIONAL PARTS
No.1 FAN MOTOR T7W A05 763 T7W 853 763
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3
TECHNICAL CHANGE2
PU18EK ➔ PU18EK1
PU24EK ➔ PU24EK1
PU30EK ➔ PU30EK1
PU36EK ➔ PU36EK1
PU42EK2 ➔ PU42EK21
1. OUTDOOR CONTROLLER BOARD has been changed.
2. TRANSFORMER has been changed.
PU18EK ➔PU18EK1
• CONTACTOR has been changed.
PU24EK1➔PU24EK2
PU30EK1➔PU30EK2
PU36EK1➔PU36EK2
• COMPRESSOR has been changed.
(PU24EK model) NH33NBD ➔NH33NBDT
(PU30EK model) NH41NAD ➔NH41NAHT
(PU36EK model) NH47NAD ➔NH47NAHT
Refer to “5. SPECIFICATIONS”, “6. DATA” and “13. PARTS LIST” for details.
PU42EK7 ➔PU42EK71
1. COMPRESSOR CONTACTOR has been changed to the one equipped THERMAL RELAY.
Refer to 8.WIRING DIAGRAM and 13.PARTS LIST for details.
2. OUTDOOR CONTROLLER BOARD has been changed.
Refer to “13. PARTS LIST” for details.
(OC247 REVISED EDITION-D)
PU24EK2➔PU24EK3
PU30EK2➔PU30EK3
PU36EK2➔PU36EK3
PU42EK71➔PU42EK72
• DRAIN PAN has been added.
<‘‘13. PARTS LIST’’ has been changed.>
PU36EK2➔PU36EK3
• COMPRESSOR CAPACITOR for PU36EK, PU36EK1, PU36EK2and PU36EK3are unified.
(OC247 REVISED EDITION-B)
(OC247 REVISED EDITION-A)
Change of the service parts.
Refer to “13. PARTS LIST” for the details.
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4
3 COMBINATION OF INDOOR AND OUTDOOR UNITS
Indoor unit
Models Service
manual No.
PL • AK
PL • FK(2)
PC • EK
PK • FL(3)
PC • GK
PK • FK(3)
OC246
OC001 SECOND EDITION
OC003 SECOND EDITION
OC194
OC185A, OC275
OC278
OC121, OC196A
OC274
18 24 30 36 42
PU
Outdoor unit
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
OC001 SECOND EDITION
OC003 SECOND EDITION
OC192
12
EK EK EK1EK EK1
EK2
EK3EK EK1
EK2
EK3EK EK1
EK2
EK3EK2 EK7
EK71
EK72
EK21
PK • EK OC001
SECOND EDITION
OC003 SECOND EDITION
4PART NAMES AND FUNCTIONS
PU18EK
PU18EK1
Outdoor unit
Air intake
Air outlet
Air intake
Air outlet
PU24EK PU30EK
PU24EK1PU30EK1
PU24EK2PU30EK2
PU24EK3PU30EK3
Outdoor unit
Air intake
Air outlet
PU36EK PU42EK2 PU42EK7
PU36EK1PU42EK21PU42EK71
PU36EK2PU42EK72
PU36EK3
Outdoor unit
PU12EK
Outdoor unit
Air intake
Air outlet
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5
SPECIFICATIONS5
OUTDOOR UNIT MODELS
External finish
Power supply
Max.fuse size (time delay)
Min.ampacity
Fan motor
Compressor
Crankcase heater
Refrigerant control
Sound level
Dimensions
Weight
Control voltage (by built-in transformer)
REFRIGERANT
REFRIGERANT PIPING
Pipe size
Connection
method
Between the indoor
& outdoor units
Model (type)
W
D
H
Name
Charge
Oil<Model>
Liquid
Gas
Indoors
Outdoors
Height difference
Piping length
V, phase, Hz
A
A
F.L.A.
R.L.A.
L.R.A.
A(W)
dB
in.
in.
in.
lb
OZ
in.
in.
ft
ft
PU12EK
Model
PU12EK
15
11
0.65
RH167NAB
8.9
29
50
25-9/16
105
4 lbs 14 oz
PU18EK
PU18EK
PU18EK1
0.75
RH247NAB
12.0
37
53
33-1/2
154
5 lbs 8 oz
3/8
5/8
PU24EK
207
9 lbs 15 oz
37<MS32(N-1)>
PU30EK
20
10 lbs 2 oz
Munsell 5Y 7/1
208/230, 1, 60
Capillary tube
55
Indoor unit-outdoor unit:DC12V
R22
Not supplied(optional parts)
Flared
Flared
PU36EK
22
0.75+0.75
0.16/0.17(33/39)
49-9/16
10 lbs 9 oz
Max, 164
Max. 164
Item
Operating range
Indoor intake air temperature
D.B. 95˚F, W.B. 71˚F
D.B. 67˚F, W.B. 57˚F
Outdoor intake air temperature
D.B. 115˚F
D.B. 0˚F w
Cooling Maximum
Minimum
PU42EK2 PU42EK7
PU42EK2
PU42EK21
27
NH569NXA
20.0
105
38-3/16
13-9/16
260
12 lbs 9 oz
49<MS32(N-1)>
PU42EK7
PU42EK71
PU42EK72
28
ZR42K3PFV
20.4
109
220
11 lbs 0 oz
42<SONTEX 200LT>
wIn case of the wind baffle installed.
(In case of the wind baffle is not installed, the minimum temperature is D.B. 23˚F)
PU24EK
PU24EK1
NH33NBD
11.5
52
PU24EK2
PU24EK3
NH33NBDT
10.8
57
PU30EK
PU30EK1
NH41NAD
14.0
73
208
PU30EK2
PU30EK3
NH41NAHT
12.9
75
210
PU36EK
PU36EK1
NH47NAD
17.5
87
220
PU36EK2
PU36EK3
NH47NAHT
15.1
81
222
20
16
34-1/4
11-5/8
0.65+0.65
30
40<MS32(N-1)>
40
0.8+0.8
56
0.11/0.12(23/28)
16<MS-56>
Max. 130
Max. 130
1/2
3/4
MODELS : PU12EK PU18EK PU24EK PU30EK PU36EK PU42EK2 PU42EK7
PU18EK1 PU24EK1PU30EK1PU36EK1PU42EK21PU42EK71
PU24EK2PU30EK2PU36EK2PU42EK72
PU24EK3PU30EK3PU36EK3
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6
6DATA
1. ADDITIONAL REFRIGERANT CHARGE (R22 : oz)
2. COMPRESSOR TECHNICAL DATA
PU12EK
PU42EK7
PU42EK71
PU42EK72
Piping length (one way)
100 ft 115 ft 130 ft 145 ft 160 ft 164 ft Factory
charged
Service Ref.
PU24EK
PU24EK1
PU24EK2
PU24EK3
PU30EK
PU30EK1
PU30EK2
PU30EK3
PU18EK
PU18EK1
PU36EK
PU36EK1
PU36EK2
PU36EK3
PU42EK2
PU42EK21
0
0
0
0
0
0
0
2
2
2
5
5
5
5
4
4
4
10
10
10
10
—
—
6
14
14
14
14
—
—
8
19
19
19
19
—
—
9
20
20
20
20
4 lbs 14 oz
5 lbs 8 oz
9 lbs 15 oz
10 lbs 2 oz
10 lbs 9 oz
12 lbs 9 oz
11 lbs 0 oz
Compressor model
Winding
Resistance
( ")
R-C
S-C
RH167NAB NH33NBD
Unit PU12EK PU30EK
PU30EK1
PU24EK
PU24EK1
PU18EK
PU18EK1
NH41NAD
2.47
4.62
RH247NAB
1.59
3.22
0.92
1.93
NH33NBDT
PU24EK2
PU24EK3
0.92
1.93
NH41NAHT
PU30EK2
PU30EK3
0.62
1.51
0.63
1.37
at 68°F (Only PU42EK7 PU42EK71: at 77°F)
Compressor model
Winding
Resistance
( ")
R-C
S-C
Unit
ZR42K3PFV
PU36EK2
PU36EK3
0.54
1.28
0.55
1.24
NH47NAD
PU36EK
PU36EK1
0.52
1.28
NH47NAHT
PU42EK2
PU42EK21
PU42EK7
PU42EK71
PU42EK72
NH569NXA
0.55
1.24
at 68°F(Only PU42EK7 PU42EK71: at 77°F)
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7
3. NOISE CRITERION CURVES
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
PU12EK 50
SPL(dB) LINE
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
SPL(dB) LINE
PU24EK PU30EK
PU24EK1PU30EK1
PU24EK2PU30EK2
PU24EK3PU30EK355
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
PU18EK
PU18EK153
SPL(dB) LINE
90
80
70
60
50
40
30
20
10
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
SPL(dB) LINE
PU36EK
PU36EK1
PU36EK2
PU36EK355
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8
90
80
70
60
50
40
30
20
10
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
SPL(dB) LINE
56
PU42EK2 PU42EK7
PU42EK21PU42EK71
PU42EK72
3.3ft
3.3ft
MICROPHONE UNIT
GROUND
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9
OUTLINES AND DIMENSIONS7
5-7/16
29/32
9/32 11-5/8
1-5/16
13-11/32
3-1/32 20-5/8
1-9/16 20-5/8
11-3/32
11-11/16
17-15/32
25-9/16
34-1/4
11-7/8
2-3/8 2-3/8
4-3/4
2-1/16 1-3/4
4-1/8
15/32 2-9/16
21/32
3-5/32
31/32 max.
R 1/4
R25/32
R25/32
Bottom piping hole
Front right piping holes - detail Figures
Standard bolt length
2-U-shaped notched holes
1-5/16
1-21/32
1-25/32
3-3/4
Handle for moving
Rear fresh air intake
Outlet guide installation hole
Terminal bed for indoor and outdoor unit connection Terminal bed for power line
Refrigerant-pipe flared connection 5/8
Knock out hole for front piping
Knock out hole for front piping
Knock out holes for power line 1-1/16
15/32 29/32 Oval holes
Drain hole
Drain hole
(standard bolt M10)
(refrigerant, drainage and wiring)
(refrigerant, drainage and wiring)
Ground terminal Handle for moving Service panel
Handle for moving
Side air intake
Rear piping hole
Air in
Air in
Air out
7-9/32 7-9/32
14-1/4
1-9/16 1-3/32 11/169/16 13
19-11/16
Refrigerant-pipe flared connection 3/8
1
Front opening
Service space
(for N.E.C)
1/2
36
36
4
Note:Allow adequate
upper clearance.
1/2
8
1/2
Outdoor Unit - necessary surrounding clearance
Unit : inch
Outdoor Unit PU12EK
40
1/2
Outdoor Unit-Necessary surrounding clearance
(Concentrated installation) The upper side must be open.
4
8
For 10 units or less
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10
Unit : inch
Outdoor Unit PU18EK
PU18EK1
Terminal block for indoor and outdoor unit connection Terminal block for power line
Ground terminal
Handle for moving Service panel
Refrigerant pipe (Flared) 5/8
Knock out hole for front piping 4-3/4 (refrigerant. drainage and wiring)
4-1/8
Drain hole
Drain hole
2-U-shaped notched holes
1-5/8
1-3/4
1-5/16
Bottom piping hole
2-9/16
3-1/8
R13/16
Front right piping holes- detail figures
Standard bolt length
1 max.
1/2
1/2x7/8 Oval holes
(standard bolt W3/8(M10) Knock out hole for
right piping (refrigerant. drainage and wiring)
15-7/8
7-1/18 20-5/18
17-3/18
1
2
13-7/4
13-7/8 21-3/4
2-3/820-5/81-9/16
33-1/2
34-1/4
11-7/8
7-9/32 7-9/32
Front opening
Service space
(for N.E.C)
1/2
36
36
4
Note:Allow adequate
upper clearance.
1/2
8
1/2
1-9/161-1/16
13
14-1/4 11/169/16
19-11/16
Refrigerant pipe (Flared) 3/8
Outlet guide installation hole
1
40
1/2
Outdoor Unit-Necessary surrounding clearance
(Concentrated installation) The upper side must be open.
4
8
For 10 units or less
11-5/8
Side air intake
Handle for moving
Rear fresh air intake
Rear piping hole
Handle for moving
3-3/4
5-7/16
2-3/8 Knock out holes for
power line 1-1/16
1-3/4
2-1/16
Air intake
Air intake
Air outlet
11/16
R1/4
R13/16
1/4
Outdoor Unit - necessary surrounding clearance
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