Mitsubishi Electric Mr.SLIM PUZ-HA30NHA4 User manual

SERVICE MANUAL
CONTENTS
1. REFERENCE MANUAL ·································· 2
2. SAFETY PRECAUTION·································· 2
3. FEATURES······················································ 6
4. SPECIFICATIONS ··········································· 7
5. DATA································································ 8
6. OUTLINES AND DIMENSIONS ···················· 10
7. WIRING DIAGRAM·········································11
8. WIRING SPECIFICATIONS··························· 12
9. REFRIGERANT SYSTEM DIAGRAM ·············· 16
10. TROUBLESHOOTING··································· 17
11. EASY MAINTENANCE FUNCTION··············· 70
12. FUNCTION SETTING···································· 73
13. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ············81
14. DISASSEMBLY PROCEDURE······················ 91
No. OCH504
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
R410A
July 2011
PUZ-HA30NHA4
PUZ-HA36NHA4
Outdoor unit
NOTE:
• This manual describes only
service data of the outdoor
units.
• RoHS compliant products have
<G> mark on the spec name
plate.
Outdoor unit
[model name]
PUZ-HA30NHA4
PUZ-HA36NHA4
[Service Ref.]
PUZ-HA30NHA4
PUZ-HA36NHA4
PARTS CATALOG (OCB504)

2 3
2 SAFETY PRECAUTION
1-1. INDOOR UNIT
Model name Service Ref. Service
Manual No.
PLA-A18/30/36BA4 PLA-A18/30/36BA4
PKA-A18HA4 PKA-A18HA4 OCH482/OCB482 OCH483/OCB483
PCA-A30/36KA4 PCA-A30/36KA4 OCH484/OCB484
PEA-A18AA4
PEAD-A30/36AA4 PEA-A18AA4.TH PEAD-A30/36AA4 HWE08070 HWE09050
PKA-A30/36KA4 PKA-A30/36KA4.TH OCH488/OCB488
1REFERENCE MANUAL
Before obtaining access to terminal, all supply circuits must be disconnected.
Preparation before the repair service.
• Prepare the proper tools.
• Prepare the proper protectors.
• Provide adequate ventilation.
• After stopping the operation of the air conditioner, turn off the power-supply beaker.
• Discharge the condenser before the work involving the electric parts.
Precautions during the repair service.
• Do not perform the work involving the electric parts with wet hands.
• Do not pour water into the electric parts.
• Do not touch the refrigerant.
• Do not touch the hot or cold areas in the refrigerating cycle.
• When the repair or the inspection of the circuit needs to be done without turning off the power,
exercise great caution not to touch the live parts.
2-1. ALWAYS OBSERVE FOR SAFETY

2 3
Cautions for units utilizing refrigerant R410A
2-2. CAUTIONS RELATED TO NEW REFRIGERANT
Use new refrigerant pipes.
Make sure that the inside and outside of refrige-
rant piping is clean and it has no contaminants
such as sulfur, oxides, dirt, shaving particles, etc,
which are hazard to refrigerant cycle.
In addition, use pipes with specified thickness.
Store the piping to be used indoors during
installation and both ends of the piping sealed
until just before brazing. (Leave elbow joints, etc.
in their packaging.)
The refrigerant oil applied to flare and flange
connections must be ester oil, ether oil or
alkylbenzene oil in a small amount.
In case of using the existing pipes for R22, be careful with
the followings.
· Be sure to clean the pipes and make sure that the insides
of the pipes are clean.
· Change flare nut to the one provided with this product.
Use a newly flared pipe.
· Avoid using thin pipes.
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency will be
lowered.
Contamination inside refrigerant piping can cause deterio-
ration of refrigerant oil etc.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
If large amount of mineral oil enters, that can cause deterio-
ration of refrigerant oil etc.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrige-
rant can cause deterioration of refrigerant oil etc.
Use a vacuum pump with a reverse flow check
valve.
Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil etc.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt will change and the efficiency will be lowered.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
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.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.

4
5
Gravimeter
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No. Tool name Specifications
1Gauge manifold · Only for R410A
· Use the existing fitting specifications.
· Use high-tension side pressure of 5.3MPa·G or over.
2Charge hose · Only for R410A
· Use pressure performance of 5.09MPa·G or over.
3Electronic scale
4Gas leak detector · Use the detector for R134a, R407C or R410A.
5Adaptor for reverse flow check · Attach on vacuum pump.
6Refrigerant charge base
7Refrigerant cylinder · Only for R410A · Top of cylinder (Pink)
· Cylinder with syphon
8Refrigerant recovery equipment
[1] Cautions for service
(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) When performing service, install a filter drier simultaneously.
Be sure to use a filter drier for new refrigerant.
[2] Additional refrigerant charge
When charging directly from cylinder
· Check that cylinder for R410A on the market is syphon type.
· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)

4
5
2-3. CAUTIONS FOR REFRIGERANT PIPING WORK
New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is
same as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the
working pressure of R410A is 1.6 time higher than that of R22, their sizes of flared sections and flare nuts are different.
1Thickness of pipes
Because the working pressure of R410A is higher compared to R22, be sure to use refrigerant piping with thickness
shown below. (Never use pipes of 0.7mm [7/256 inch] or below.)
2Dimensions of flare cutting and flare nut
The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that,
R410A is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other
refrigerants. Therefore, to enhance air tightness and intensity, flare cutting dimension of copper pipe for R410A has
been specified separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for
R410A also has partly been changed to increase intensity as shown below. Set copper pipe correctly referring to cop-
per pipe flaring dimensions for R410A below. For 1/2 and 5/8 inch, the dimension B changes.
Use torque wrench corresponding to each dimension.
 3Tools for R410A (The following table shows whether conventional tools can be used or not.)
1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
0.8 [1/32]
0.8 [1/32]
0.8 [1/32]
1.0 [5/128]
—
0.8 [1/32]
0.8 [1/32]
0.8 [1/32]
1.0 [5/128]
1.0 [5/128]
Nominal
dimensions
(inch)
Diagram below: Piping diameter and thickness
Outside
diameter (mm)
Thickness : mm [inch]
R410A R22
1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
9.1 [11/32-23/64]
13.2 [1/2-33/64]
16.6 [41/64-21/32]
19.7 [49/64-25/32]
—
9.0
13.0
16.2
19.4
23.3
Nominal
dimensions(inch)
Flare cutting dimensions
Outside
diameter(mm) Dimension A ( )
+0
-0.4
Unit : mm [inch]
R410A R22
1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
17.0 [43/64]
22.0 [7/8]
26.0 [1-3/64]
29.0 [1-9/64]
—
17.0
22.0
24.0
27.0
36.0
Nominal
dimensions(inch)
Flare nut dimensions Outside
diameter(mm) Dimension B
Unit : mm [inch]
R410A R22
Gauge manifold
Charge hose
Gas leak detector
Refrigerant recovery equipment
Refrigerant cylinder
Applied oil
Safety charger
Charge valve
Vacuum pump
Flare tool
Bender
Pipe cutter
Welder and nitrogen gas cylinder
Refrigerant charging scale
Vacuum gauge or thermis-
tor vacuum gauge and
vacuum valve
Charging cylinder
Air purge, refrigerant charge
and operation check
Gas leak check
Recover refrigerant
Refrigerant charge
Apply to flared section
Prevent compressor malfunction
when charging refrigerant by
spraying liquid refrigerant
Prevent gas from blowing out
when detaching charge hose
Vacuum drying and air
purge
Flaring work of piping
Bend the pipes
Cut the pipes
Weld the pipes
Recover refrigerant
Check the degree of vacuum. (Vacuum
valve prevents back flow of oil and refri-
gerant to thermistor vacuum gauge)
Recover refrigerant
Tool exclusive for R410A
Tool exclusive for R410A
Tool for HFC refrigerant
Tool exclusive for R410A
Tool exclusive for R410A
Ester oil and alkylbenzene
oil (minimum amount)
Tool exclusive for R410A
Tool exclusive for R410A
Tools for other refrigerants can
be used if equipped with adop-
ter for reverse flow check
Tools for other refrigerants
can be used by adjusting
flaring dimension
Tools can be used for other refrigerants
Tools can be used for other refrigerants
Tools can be used for other refrigerants
Tools can be used for other refrigerants
Tools can be used for other
refrigerants
Tool exclusive for R410A
Tools and materials Use R410A tools Can R22 tools be used?
(Usable if equipped
with adopter for rever-
se flow)
(Usable by adjusting
flaring dimension)
: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.
Dimension A
Dimension B

6
7
3 FEATURES
HIGH HEATING CAPACITY
Industry-first flash injection circuit is equipped, which enables to
keep the equal capacity to the rating even when outside tem-
perature is 5°F[-15°C].
HIGH SPEED HEATING START UP
The performance of heating start up is improved. Compared to
PUZ-A type, Hyper Heating Inverter reduced the time for heat-
ing start up by about half. After starting operation, the airflow
temperature goes up to 105°F[41°C] quickly in 10 minutes. With
industry first shorter and less frequent defrost, defrosting time is
cut down by 15% compared to PUZ-A type and heating operation
can continuosly run for maximum 150 minutes.
WIDE HEATING RANGE
The heating range is expanded to -13°F[-25°C] compared to
PUZ-A type which is up to 10°F[-12°C].
CHARGELESS SYSTEM
PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT.
Max.100ft, 30m
The refrigerant circuit with LEV(Linear Expansion Valve) and power receiver always control the optimal refrigerant level
regardless of the length (max.: 100ft [30m] and mim.: 16ft [5m]) of piping. The additional refrigerant charging work during
installation often causes problems. It is completely eliminated by chargelss system. This unique system improves the quality
and reliability of the work done. It also helps to speed up the installation time.
PUZ-HA30NHA4
PUZ-HA36NHA4
Outdoor W.B. temp.
Heating capacity
-13°F
[-25°C] -4°F [-20°C] 5°F [-15°C] 14°F [-10°C] 23°F [-5°C] 32°F [0°C]
A36
HA36
40,000
(Btu/h)
30,000
23,500BTU/h
38,000BTU/h
0
Performance
about 60%UP
33,000Btu/h
(Outlet air temp.
105°F[41°C])
About 5min.
Stable
About 50% CUT
Elapsed time(min.)
Heating capacity(peak)
About 10 min.
When stabled,
hot air of 122˚F[50˚C]
PUZ-A type:
Outlet air temp. 105˚F[41˚C]
HA36
Outlet air temp.105˚F[41˚C]+1
40,000
(Btu/h)
30,000
5 100
+1 Condition
Room temp. 70°F[21°C](D.B.) Outdoor temp. 35°F[1.7°C](D.B.) / 33°F[0.6°C](W.B.) : Hi notch
It doesn’t become 122˚F[50˚C]
when outside air temp.
is too low.
0
Expanded
Up to -13 °F
Outdoor wet-bulb temperature
A36 type
HA36 type
-13°F
10°F
-13°F
[-25°C] -4°F [-20°C] 5°F [-15°C] 14°F [-10°C] 23°F [-5°C] 32°F [0°C]

6
7
4 SPECIFICATIONS
Service Ref.
Power supply Phase Single
Cycle 60Hz
Voltage 208/230V
MCA A 28
MOCP A 40
Breaker size A 30
External finish Munsell 3Y 7.8/1.1
Heat exchanger Plate fin coil
Defrost method Reverse cycle
Crankcase heater kW -
Compressor Hermetic
Model
Motor output kW 2.5
R.L.A. 20
L.R.A. 27.5
Starter type Inverter
Fan Fan(drive) %No. Propeller fan %2
Fan motor output kW 0.086 + 0.086
Fan motor F.L.A. 0.40 + 0.40
Airflow m
3
/min 100
CFM 3530
Sound level Cooling dB 52
Heating dB 53
Protection devices HP switch
LP switch
Discharge thermo
Dimension W mm 950
D mm 330+30
H mm 1350
W in. 37-12/32
D in. 13 + 1-3/16
H in. 53-5/32
Weight kg
lbs
Refrigerant Charged kg 5.5
R410A
lbs 12
Control Linear expansion valve
Oil Model Ether (FV50S)
Charged L 1.4
oz 45
Refrigerant Pipe size OD mm 9.52
piping Liquid in. 3/8
Pipe size OD mm 15.88
Gas in. 5/8
Connection method Indoor Flared
Connection method Outdoor Flared
Height difference m Max. 30
IU - OU ft Max. 100
Piping length m Max. 75
ft Max. 245
PUZ-HA30NHA4
PUZ-HA36NHA4
ANB33FJEMT
120
265

8 9
Piping Length (one way)
Charged
Factory
Service Ref. 100ft 110ft 120ft 130ft 140ft 150ft 160ft 165ft
30m 33m 37m 40m 43m 46m 49m 50m
PUZ-HA30NHA4
PUZ-HA36NHA4
194 oz 200 oz 206 oz 212 oz 218 oz 224 oz 230 oz 237 oz 195 oz
5.5 kg 5.7 kg 5.9 kg 6.0 kg 6.2 kg 6.4 kg 6.6 kg 6.7 kg
180ft 200ft 210ft 230ft 245ft
55m 61m 64m 70m 75m
242 oz 254 oz 260 oz 272 oz 280 oz
6.9 kg 7.2 kg 7.4 kg 7.7 kg 7.9 kg 5.5 kg
Longer pipe than 100 ft,additional charge is required.
Service Ref.
Compressor model
()
Winding Registance
U-V
U-W
W-V
(at 20°C,68°F )
PUZ-HA30NHA4
PUZ-HA36NHA4
ANB33FJEMT
0.188
0.188
0.188
5-1. REFILLING REFRIGERANT CHARGE (R410A : oz, kg)
5-2. COMPRESSOR TECHNICAL DATA
5DATA
5-3. 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
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
PUZ-HA30NHA4
PUZ-HA36NHA4
COOLING
MODE
HEATING
52
SPL(dB)
53
LINE
5ft
3.3ft
MICROPHONE
UNIT
GROUND

8 9
PUZ-HA30NHA2
Representative matching PKA-A36KA4
Mode COOLING HEATING
Total Capacity BTU/h 33,500
2,790 38,000 3,410
Input W
Electrical circuit
Indoor unit model PKA-A36KA
Phase Single
Cycle 60Hz
Voltage 230V
Current 0.36A
Outdoor unit model PUZ-HA36NHA2
Phase Single
Cycle 60Hz
Voltage 230V
Current
Refrigerant circuit
Discharge pressure MPa
Suction pressure MPa
Discharge temperature °C
Condensing temperature °C
Suction temperature °C
Ref. Pipe length m
Discharge pressure PSIG
Suction pressure PSIG
Discharge temperature °F
Condensing temperature °F
Suction temperature °F
Ref. Pipe length ft
side
Indoor Intake air temperature DB °C
Intake air temperature WB °C
Discharge air temperature DB °C
side
Outdoor Intake air temperature DB °C
Intake air temperature WB °C
side
Indoor Intake air temperature DB °F
Intake air temperature WB °F
Discharge air temperature DB °F
side
Outdoor Intake air temperature DB °F
Intake air temperature WB °F
SHF
BF
PKA-A30KA4
COOLING HEATING
12.2 A
2.58
0.87
70.8
44.4
10.5
7.6
374
126
159
112
51
25
26.7
19.4
12.5
35
23.9
80
67
55
95
75
0.71
0.09
15.4 A
2.94
0.73
75.6
49.7
2.8
7.6
427
106
168
121
37
25
21.1
15.6
43.5
8.3
6.1
70
60
110
47
43
—
—
30,000
2,500 32,000 2,930
PKA-A30KA
0.57A
11.1 A
2.51
0.88
67.7
43.3
10.8
7.6
364
128
154
110
51
25
26.7
19.4
12.3
35
23.9
80
67
54
95
75
0.70
0.09
13.0 A
2.92
0.71
78.1
49.4
2.5
7.6
424
103
173
121
37
25
21.1
15.6
43.4
8.3
6.1
70
60
110
47
43
—
—
5-4. STANDARD OPERATION DATA

10
11
6OUTLINES AND DIMENSIONS
PUZ-HA30NHA4 Unit : mm<inch>
PUZ-HA36NHA4
Min. 1000mm
<39-3/8> Min. 150mm
<5-29/32>
Min. 10mm
<3/8> Min. 10mm
<3/8>
FREE
<Foundation bolt height>
FOUNDATION
Service space
Terminal Block
Left···Power supply wiring Right····Indoor/Outdoor wiring
Earth terminal
Service panel
Handle
1
2
23<29/32>
1076<42-3/8>
* 1 447<17-19/32>
* 1 443<17-7/16>
Handle
Front piping cover
Rear piping cover
Air Discharge
Rear Air Intake
Side Air Intake
31<1-7/32>
145
<5-23/32>
145
<5-23/32>
220
<8-21/32>
30<1-3/16> 145
<5-23/32>
81<3-3/16> 219<8-5/8>
71<2-13/16>
71<2-13/16>
Bottom piping hole (Knockout)
Drain hole 5-:33<1-5/16>
Handle
Side Air Intake
Air intake
Rear Air Intake
Handle
Handle
40<1-9/16>
74<2-19/32>
When installing the conduit. Set the attachment to the inner side of each panel.
2-:22.2<7/8>
1/2 Conduit attachment
45<1-25/32>
40<1-9/16>
65<2-9/16>
92<3-5/8>
27<1-1/16>
55<2-3/16>
23<29/32> 73<2-7/8>
63<2-1/2>
Rear piping hole (Knockout)
Rear trunking hole (Knockout)
Conduit hole (2-:27<1-1/16>Knockout)
:92
<3-5/8>
19<3/4>
55<2-3/16>
92<3-5/8>
75
<2-31/32>
40<1-9/16>
73<2-7/8>
63<2-1/2>
23<29/32> 27<1-1/16>
92<3-5/8>
Right piping hole (Knockout) Right trunking hole
(Knockout)
Conduit hole (2-:27<1-1/16>Knockout)
:92
<3-5/8>
92<3-5/8>
65<2-9/16>
45<1-25/32>
40<1-9/16>
27<1-1/16>
55<2-3/16>
23<29/32>
73<2-7/8>
63
<2-1/2>
Front piping hole (Knockout)
Front trunking hole (Knockout)
Conduit hole (2-:27<1-1/16>Knockout)
:92
<3-5/8>
371<14-19/32>
330<13>30<1-3/16>
175<6-7/8> 600<23-5/8> 175<6-7/8>
42<1-21/32>66<2-5/8>
950<37-13/32>
322<12-11/16>
1350<53-5/32>
635<25>
19<3/4>
417<16-13/32>
370<14-9/16>
2-U Shaped notched hole (Foundation Bolt M10<W3/8>)
56<2-7/32>
28<1-3/32>
53<2-3/32>
45<1-25/32>
2-12%36 Oval hole (Foundation Bolt M10<W3/8>)
····Refrigerant GAS pipe connction (FLARE):15.88<5/8> ····Refrigerant LIQUID pipe connection (FLARE):9.52<3/8> *1 ····Indication of STOP VALVE connection location.
Example of Notes
1 FREE SPACE (Around the unit)
2 SERVICE SPACE
3 FOUNDATION BOLTS
4 PIPING-WIRING DIRECTIONS
Piping Knockout Hole Details
The diagram below shows a basic example. Explantion of particular details are given in the installation manuals etc.
Dimensions of space needed for service access are shown in the below diagram.
Please secure the unit firmly with 4 foundation (M10<W3/8>) bolts. (Bolts and washers must be purchased locally.)
Piping and wiring connections can be made from 4 directions: front, right, rear and below.
Min. 10mm<3/8>
Min.
500mm
<19-11/16>
Min. 500mm <19-11/16>
Min.
150mm
<5-29/32>
Min.
30mm
<1-3/16>