Mitsubishi Electric PUHZ-SW160YKA-BS User manual

SERVICE MANUAL R410A
Outdoor unit
[Model Name]
PUHZ-SW160YKA
PUHZ-SW200YKA
[Service Ref.]
PUHZ-SW160YKA.UK
PUHZ-SW160YKAR1.UK
PUHZ-SW200YKA.UK
PUHZ-SW200YKAR1.UK
PUHZ-SW160YKA-BS.UK
PUHZ-SW160YKAR1-BS.UK
PUHZ-SW200YKA-BS.UK
PUHZ-SW200YKAR1-BS.UK
PARTS CATALOG (OCB583)
CONTENTS
TECHNICAL CHANGES ······························2
1. REFERENCE MANUAL····························2
2. SAFETY PRECAUTION····························2
3. FEATURES ············································6
4. SPECIFICATIONS ···································7
5. DATA ····················································8
6. OUTLINES AND DIMENSIONS················ 11
7. WIRING DIAGRAM································ 12
8. WIRING SPECIFICATIONS····················· 13
9. REFRIGERANT SYSTEM DIAGRAM ··········· 15
10. TROUBLESHOOTING···························· 17
11. DISASSEMBLY PROCEDURE ················· 60

Salt proof model
PUHZ-SW160YKA-BS
PUHZ-SW200YKA-BS
No. OCH583
REVISED EDITION-A
August 2015
SPLIT-TYPE, AIR TO WATER HEAT PUMP
Note:
• This manual describes service
data of the indoor units only.
• Please void OCH583.
Revision:
• PUHZ-SW160YKAR1.UK,
PUHZ-SW160YKAR1-BS.UK,
PUHZ-SW200YKAR1.UK and
PUHZ-SW200YKAR1-BS.UK
in REVISED EDITION-A.
• Some descriptions have been
modified.

2
2-1. ALWAYS OBSERVE FOR SAFETY
Before obtaining access to terminal, all supply circuits must be disconnected.
INDOOR UNIT SERVICE MANUAL
Model Name Service Ref. Service
Manual No.
ERSE-YM9EC
ERSE-MEC
EHSE-YM9EC
EHSE-MEC
ERSE-YM9EC.UK
ERSE-YM9ECR1.UK
ERSE-MEC.UK
ERSE-MECR1.UK
EHSE-YM9EC.UK
EHSE-YM9ECR1.UK
EHSE-MEC.UK
EHSE-MECR1.UK
OCH590
OCB590
PAC-IF012B-E
PAC-IF021B-E
PAC-IF032B-E
PAC-IF012B-E
PAC-IF021B-E
PAC-IF032B-E
OCB427
PAC-SIF051B-E PAC-SIF051B-E OCB536
PAC-IF061B-E
PAC-IF062B-E
PAC-IF063B-E
PAC-IF061B-E
PAC-IF062B-E
PAC-IF063B-E
OCB572
2SAFETY PRECAUTION
2-2. CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilizing refrigerant R410A
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.
1REFERENCE MANUAL
TECHNICAL CHANGES
Service ref. have been changed as follows.
PUHZ-SW160YKA(-BS).UK PUHZ-SW160YKAR1(-BS).UK
PUHZ-SW200YKA(-BS).UK PUHZ-SW200YKAR1(-BS).UK
1. A compliance with ErP directive Lot1 has been authorized.
OCH583A

3
[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 a syphon type.
· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
Gravimeter
Unit
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.
Contamination inside refrigerant piping can cause deterio-
ration of refrigerant oil, etc.
Store the piping indoors, and both ends of the
piping sealed until just before brazing.
(Leave elbow joints, etc. in their packaging.)
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
The refrigerant oil applied to flare and flange
connections must be ester oil, ether oil or
alkylbenzene oil in a small amount.
If large amount of mineral oil enters, that can cause deterio-
ration 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.
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.
Use new refrigerant pipes.
In case of using the existing pipes for R22, be careful with
the following:
· 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.
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.
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.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
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.
Use the specified refrigerant only.
OCH583A

4
2-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES
(1) Flowchart
(2) 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 times higher than that of R22, their sizes of flared sections and flare nuts are different.
1 Thickness 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 0.7 mm or below.)
1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
0.8
0.8
0.8
1.0
—
0.8
0.8
0.8
1.0
1.0
Nominal
dimensions (in)
Diagram below: Piping diameter and thickness
Outside
diameter (mm)
Thickness (mm)
R410A R22
[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. (UNF1/2)
· 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 —
Perform the airtight test, vacuum air purging,
additional refrigerant charging (if necessary),
and gas leak check.
• Refer to the owchart below to determine if the existing pipes can be used and if it is necessary to use a lter drier.
• If the diameter of the existing pipes is different from the specied diameter, refer to technological data materials to conrm if
the pipes can be used.
Measure the existing pipe thickness and
check for damage.
The existing pipe thickness meets specica-
tions and the pipes are not damaged.
Check if the existing air conditioner can operate.
After operating the cooling system for about 30
minutes, do a pump down work.
Disconnect the existing air conditioner from the
pipes.
Attach the new air conditioner
The existing pipes cannot be reused.
Use new pipes.
• If the existing air conditioner cannot operate, use a
refrigerant recovery device to collect the refrigerant.
• In case existing pipes were used for gas or oil
heat pump systems, be sure to clean the pipes.
The existing pipe thickness does not meet
specications or the pipes are damaged.
OCH583A

5
2 Dimensions 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 refriger-
ants. Therefore, to enhance airtightness and strength, flare cutting dimension of copper pipe for R410A has been speci-
fied 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 strength as shown below. Set copper pipe correctly referring to copper pipe flaring
dimensions for R410A below. For 1/2 and 5/8 inch pipes, the dimension B changes.
Use torque wrench corresponding to each dimension.
3 Tools 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
9.1
13.2
16.6
19.7
—
9.0
13.0
16.2
19.4
23.3
Nominal
dimensions (in)
Flare cutting dimensions
Outside
diameter
Dimension A ( )
+0
-0.4 (mm)
(mm)
R410A R22 1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
17.0
22.0
26.0
29.0*
—
17.0
22.0
24.0
27.0
36.0
Nominal
dimensions (in)
Flare nut dimensions
Outside
diameter
Dimension B (mm)
(mm)
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
Refrigerant recovery
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
Refrigerant charge
Check the degree of vacuum. (Vacuum
valve prevents back flow of oil and refri-
gerant to thermistor vacuum gauge)
Refrigerant charge
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 adap-
ter for reverse flow check
Tools for other refrigerants
can be used by adjusting
flaring dimension
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants
can be used
Tool exclusive for R410A
Tools and materials Use R410A tools Can R22 tools be used?
(Usable if equipped
with adapter for rever-
se flow)
(Usable by adjusting
flaring dimension)
Can R407C tools be used?
Ester oil:
Alkylbenzene oil: minimum amount
(Usable if equipped
with adapter 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
2-4. PRECAUTIONS FOR SALT PROOF TYPE "-BS" MODEL
Although "-BS" model has been designed to be resistant to salt damage, observe the following precautions to maintain the per-
formance of the unit.
1. Avoid installing the unit in a location where it will be exposed directly to seawater or sea breeze.
2. If the cover panel may become covered with salt, be sure to install the unit in a location where the salt will be washed away
by rainwater. (If a sunshade is installed, rainwater may not clean the panel.)
3. To ensure that water does not collect in the base of the outdoor unit, make sure that the base is level, not at angle. Water
collecting in the base of the outdoor unit could cause rust.
4. If the unit is installed in a coastal area, clean the unit with water regularly to remove any salt build-up.
5. If the unit is damaged during installation or maintenance, be sure to repair it.
6. Be sure to check the condition of the unit regularly.
7. Be sure to install the unit in a location with good drainage.
OCH583A

6
3 FEATURES
CHARGELESS SYSTEM
PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT
Maximum 30 m
The refrigerant circuit with LEV (Linear Expansion Valve) and power receiver/ accumulator always control the optimal refrig-
erant level regardless of the length (30 m maximum and 5 m minimum) of piping. The additional refrigerant charging work
during installation often causes problems. It is completely eliminated by chargeless system. This unique system improves
the quality and reliability of the work done. It also helps to speed up the installation time.
PUHZ-SW160YKA
PUHZ-SW200YKA
PUHZ-SW160YKA-BS
PUHZ-SW200YKA-BS

OCH583A

7
4 SPECIFICATIONS
A
kW
W
kW
K
/min(CFM )
dB
dB
mm (in)
mm (in)
mm (in)
kg (lb)
kg (lb)
L
mm (in)
mm (in)
Power supply (phase, cycle, voltage)
Max. current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Crankcase heater
Heat exchanger
Fan Fan (drive) oNo.
Fan motor output
Airflow
Defrost method
Noise level (SPL)
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Service Ref. PUHZ-SW200YKA(-BS).UK
PUHZ-SW200YKAR1(-BS).UK
PUHZ-SW160YKA(-BS).UK
PUHZ-SW160YKAR1(-BS).UK
Munsell 3Y 7.8/1.1
Linear Expansion Valve
Hermetic
Inverter
—
Plate fin coil
Propeller fan o2
0.200 + 0.200
140 (4,940)
Reverse cycle
1,050 (41-5/16)
330 + 40 (13+1-9/16)
1,338 (52-11/16)
R410A
Flared
Flared & Brazing
Maximum 30 m
2 to 80 m
21
4.7
HP switch
Comp. surface thermo
HP sensor
3 phase 50Hz, 400V
OUTDOOR UNIT
REFRIGERANT PIPING
4.7
19
7.1 (15.7)
9.52 (3/8)
25.4 (1)
60
62
7.7 (17.0)
12.7 (1/2)
25.4 (1)
ANB52FRNMT
2.30 (FVC68D)
136 (299.88)
58
62
OCH583A

8
5DATA
Service Ref.
Compressor model
(at 20°C)
U-V
U-W
W-V
Winding
Resistance
( ")
0.30
0.30
0.30
ANB52FRNMT
PUHZ-SW160/200YKA.UK
PUHZ-SW160/200YKA-BS.UK
PUHZ-SW160/200YKAR1.UK
PUHZ-SW160/200YKAR1-BS.UK
5-2. COMPRESSOR TECHNICAL DATA
5-1. ADJUSTING THE AMOUNT OF REFRIGERANT
Amount of additional refrigerant charge (kg)
30 m and less 31–40 m and less 41–50 m and less 51–60 m and less 61–70 m and less 71–80 m and less
0.9 kg 1.8 kg 2.7 kg 3.6 kg
1.2 kg 2.4 kg 3.6 kg 4.8 kg
Service Ref. Permitted
pipe length
PUHZ-SW160YKA.UK
PUHZ-SW160YKA-BS.UK
PUHZ-SW160YKAR1.UK
PUHZ-SW160YKAR1-BS.UK
80 m or less
Initial charge
(kg)
7.1
7.7
No additional
charge necessary
The additional charge
amount is obtained by
the following formula.
Main piping:
Liquid line size
[9.52overall length [m]
o
0.09 [kg/m]
Branch piping: Liquid
line size
[9.52 overall length[m]
o0.06[kg/m]
Branch piping: Liquid
line size
[6.35 overall length[m]
o0.02[kg/m]
3.6 (kg)
Amount of additional
charge [kg]
Main piping:
Liquid line size
[12.7over all length[m]
o0.11 [kg/m]
=
Additional charge amount
for 70 m
SW160 3.6 kg
SW200 4.8 kg
+++ –
Calculate the additional charge amount based on the following procedure.
If the calculation results in an amount that is smaller than the "Additional charge amount for 70 m," perform the additional charge using the amount shown
in "Additional charge amount for 70 m."
PUHZ-SW200YKA.UK
PUHZ-SW200YKA-BS.UK
PUHZ-SW200YKAR1.UK
PUHZ-SW200YKAR1-BS.UK
OCH583A

9
5-3. NOISE CRITERION CURVES
1.5 m
1m
MICROPHONE
UNIT
GROUND
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
PUHZ-SW160YKA.UK
PUHZ-SW160YKA-BS.UK
PUHZ-SW160YKAR1.UK
PUHZ-SW160YKAR1-BS.UK
COOLING
MODE
HEATING
58
SPL(dB)
62
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
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
COOLING
MODE
HEATING
60
SPL(dB)
62
LINE
PUHZ-SW200YKA.UK
PUHZ-SW200YKA-BS.UK
PUHZ-SW200YKAR1.UK
PUHZ-SW200YKAR1-BS.UK
OCH583A

10
5-4. <REFERENCE DATA> PLATE HEAT EXCHANGER (ACH70-74 PLATES)
Nominal water ow L/min 63.1
Heating
(A7/W35) Capacity kW 22.0
COP 4.20
Power input kW 5.238
Heating
(A7/W45) Capacity kW 22.0
COP 3.20
Power input kW 6.875
Heating
(A2/W35) Capacity kW 16.0
COP 3.11
Power input kW 5.144
Heating
(A2/W45) Capacity kW 16.0
COP 2.36
Power input kW 6.779
Nominal water ow L/min 45.9
Cooling
(A35/W7) Capacity kW 16.0
EER 2.76
Power input kW 5.800
Cooling
(A35/W18) Capacity kW 18.0
EER 4.56
Power input kW 3.950
Rating conditions
Nominal operating condition
Heating (A7/W35)
Outside air temperature (Dry-bulb) + 7°C
Outside air temperature (Wet-bulb) + 6°C
Water temperature (inlet/outlet) + 30°C/+ 35°C
Heating (A7/W45)
Outside air temperature (Dry-bulb) + 7°C
Outside air temperature (Wet-bulb) + 6°C
Water temperature (inlet/outlet) + 40°C/+ 45°C
Heating (A2/W35)
Outside air temperature (Dry-bulb) + 2°C
Outside air temperature (Wet-bulb) + 1°C
Water temperature (inlet/outlet) + 30°C/+ 35°C
Heating (A2/W45)
Outside air temperature (Dry-bulb) + 2°C
Outside air temperature (Wet-bulb) + 1°C
Water temperature (inlet/outlet) + 40°C/+ 45°C
Cooling (A35/W7)
Outside air temperature (Dry-bulb) + 35°C
Outside air temperature (Wet-bulb) + 24°C
Water temperature (inlet/outlet) + 12°C/+ 7°C
Cooling (A35/W18)
Outside air temperature (Dry-bulb) + 35°C
Outside air temperature (Wet-bulb) + 24°C
Water temperature (inlet/outlet) + 23°C/+ 18°C
Note: "COP" and "Power input" in the above table do NOT contain the "pump input (based on EN 14511)".
PUHZ-SW160YKA(-BS).UK
PUHZ-SW160YKAR1(-BS).UK
Nominal water ow L/min 71.7
Heating
(A7/W35) Capacity kW 25.0
COP 4.00
Power input kW 6.250
Heating
(A7/W45) Capacity kW 25.0
COP 3.10
Power input kW 8.064
Heating
(A2/W35) Capacity kW 20.0
COP 2.80
Power input kW 7.142
Heating
(A2/W45) Capacity kW 20.0
COP 2.20
Power input kW 9.090
Nominal water ow L/min 57.3
Cooling
(A35/W7) Capacity kW 20.0
EER 2.25
Power input kW 8.888
Cooling
(A35/W18) Capacity kW 22.0
EER 4.10
Power input kW 5.365
PUHZ-SW200YKA(-BS).UK
PUHZ-SW200YKAR1(-BS).UK
OCH583A

11
Unit: mm
6OUTLINES AND DIMENSIONS
PUHZ-SW160YKA.UK PUHZ-SW160YKA-BS.UK
PUHZ-SW200YKA.UK PUHZ-SW200YKA-BS.UK
PUHZ-SW160YKA.UK PUHZ-SW200YKA.UK
PUHZ-SW160YKA-BS.UK PUHZ-SW200YKA-BS.UK
PUHZ-SW160YKAR1.UK PUHZ-SW200YKAR1.UK
PUHZ-SW160YKAR1-BS.UK PUHZ-SW200YKAR1-BS.UK
OCH583A

12
PUHZ-SW160YKA.UK PUHZ-SW200YKA.UK
PUHZ-SW160YKA-BS.UK PUHZ-SW200YKA-BS.UK
PUHZ-SW160YKAR1.UK PUHZ-SW200YKAR1.UK
PUHZ-SW160YKAR1-BS.UK PUHZ-SW200YKAR1-BS.UK
Terminal Block <Power Supply>
Terminal Block <Indoor/Outdoor>
Motor for Compressor
Fan Motor
Solenoid Valve (Four-Way Valve)
High Pressure Switch
High Pressure Sensor
Thermistor <Liquid>
Thermistor <2-Phase Pipe>
Thermistor <Ambient>
Thermistor <Heat Sink>
Thermistor <Comp. Surface>
Linear Expansion Valve
Reactor
Reactor
Rush Current Protect Resistor
Fuse <T15AL250V>
P.B.
N.F.
C.B.
TB-U/V/W
TB-L1/L2/L3
TB-P1/P3
X52CA/B
LI1/LI2/LI3/NI
LO1/LO2/LO3
GD1, GD2
SW1
SW4
SW5
SW6
SW7
Power Circuit Board
Connection Terminal <U/V/W-Phase>
Connection Terminal <L1/L2/L3-Power Supply>
Connection Terminal
52C Relay
Noise Filter Circuit Board
Connection Terminal <L1/L2/L3/N-Power Supply>
Connection Terminal <L1/L2/L3-Power Supply>
Connection Terminal <Ground>
Controller Circuit Board
Switch <Manual Defrost, Defect History,
Record Reset, Refrigerant Address>
Switch <Test Operation>
Switch <Function Switch, Model Select>
Switch <Model Select>
Switch <Function Switch>
SW8
SW9
SWP
CN31
CN3S
CNDM
CN51
SV1
SS
CNM
LED1, LED2
F3, F4
X51, X52, X54
Switch <Function Switch>
Switch <Function Switch>
Switch <Pump Down>
Connector <Emergency Operation>
Connector <Connection for Option>
Connector <Connection for Option>
Connector <Connection for Option>
Connector <Connection for Option>
Connector <Connection for Option>
Connector <Connection for Option>
LED <Operation Inspection Indicators>
Fuse <T6.3AL250V>
Relay
SYMBOL
TB1
TB2
MC
MF1, MF2
21S4
63H
63HS
TH3
TH6
TH7
TH8
TH32
LEV-A
ACL4
DCL
RS
FUSE1, FUSE2
CapacitorCY1, CY2
SYMBOL SYMBOLNAME NAME NAME
CNDC
(PNK)
TRANS
3
1
MF1
CNF1
(WHT)
17
MS
3~
MF2
CNF2
(WHT)
17
2
MS
3~
X54
31
P.B.
U
POWER
SUPPLY
3N ~
400V 50Hz
TB1
VW
RED
WHT
BLK
MC
7
L1
L2
L3
N
N.F.
CNDC
(PNK) 31 CNL
(BLU)
13
CNAC2
(RED)
31
CNCT
(RED)1 2
LO3
GD1
NI
LI1
LI2
LI3
GD2
S1
S2
S3
2
2ACL4
RED
WHT
BLK
BLU
RED
WHT
BLK
TB2
X52CA RED
BLK
WHT
BLK
YLW
ORN
BRN
TB-P1 TB-P3
RED
GRN/YLW
BLK
BLK
WHT WHT
INDOOR
UNIT
1 2
CN6
(WHT) 1 2
CN5
(RED) CN2 (RED)
1 7 1 2
CN4
(WHT)
TB-U
TB-V
TB-W
L3IN
TB-L2
TB-L1
TH8
t°
RS
RED
MS
3~
22
CY1 CY2
C. B.
TH6TH7 TH3
21S4
t° t° t°
63HS
CNS
(WHT)
CNAC
(WHT) F3
F4 21S4
(GRN)
CN2
(RED)
CN4
(WHT)
SW5
TH7/6
(RED) TH3 (WHT)
SW8
SW6SW1
SW7SW9
CN31
X52
63H
(YLW)
2
7
*1
1 4 1 2
1 3
1 2
17
1
3
1 2
3431 SV1
(GRY)
63HS
(WHT)
31
SS
(WHT)
X51
31
CNF1
(WHT)
63H LEV-A
LEV-A
(WHT)51
M
CN3S
(WHT) 3
1
CNDM
(WHT)
CN51
(WHT)
3
1
5
1
1 2
TH32
(BLK)
TH32
t°
LED1 LED2
SWP
SW4
*1
TB-L3
X52CB
L3OUT
FUSE1
FUSE2
WHT
RED
WHT
RED
DCL
CNAC1
(WHT) 31 LO1
LO2
CNM
(WHT)
1 14
1 2 3 4 5 6 7 8
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6 7 8
OFF
ON
1 2 3 4 5 6
OFF
ON
SW6 MODEL SW5-6 *2
160Y
200Y
The black square (■) indicates a switch position.
*1. MODEL SELECT
*2. SW5-1 to 5: Function switch
7WIRING DIAGRAM
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8WIRING SPECIFICATIONS
8-1. FIELD ELECTRICAL WIRING (power wiring specifications)
Notes: 1. Wiring size must comply with the applicable local and national code..
2. Power supply cables and Indoor/Outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable.
3. Install an earth longer than other cables.
Warning:
In case of A-control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between
power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S1, S2, S3 terminals
when the power is energized. If isolator should be used between indoor unit and outdoor unit, please use 3-pole type.
(Design 60245 IEC 57)
S1
S2
S3
S1
S2
S3
A-Control
Outdoor Unit
3 poles isolator
Power supply
Isolator
Indoor Unit
Outdoor unit model SW160/200
Outdoor unit power supply 3N~ (3 ph 4-wires), 50 Hz, 400 V
Outdoor unit input capacity main switch (Breaker) *1 32 A
Wiring
Wire No. ×
size (mm²)
Outdoor unit power supply 5 × Min. 4
Indoor unit-Outdoor unit *2 Cable length 50m: 3×4 (Polar)/
Cable length 80m: 3×6 (Polar)
Indoor unit-Outdoor unit earth *2 1 × Min. 2.5
Remote controller-Indoor unit *3 2 × 0.3 (Non-polar)
Circuit rating
Outdoor unit L-N (single)
Outdoor unit L1-N, L2-N, L3-N (3 phase)
*4 230 V AC
Indoor unit-Outdoor unit S1-S2 *4 230 V AC
Indoor unit-Outdoor unit S2-S3 *4 24 V DC
Remote controller-Indoor unit *4 12 V DC
*1. A breaker with at least 3.0 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).
Make sure that the current leakage breaker is one compatible with higher harmonics.
Always use a current leakage breaker that is compatible with higher harmonics as this unit is equipped with an inverter.
The use of an inadequate breaker can cause the incorrect operation of inverter.
*2. Maximum 80 m. Total maximum including all indoor/indoor connection is 80 m.
• Use one cable for S1 and S2, and another for S3 as shown in the picture.
*3. The 10 m wire is attached in the remote controller accessory.
*4. The gures are NOT always against the ground.
S3 terminal has 24 V DC against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.
Caution: Be sure to install N-Line. Without N-Line, it could cause damage to the unit.
Notes: 1. Wiring size must comply with the applicable local and national codes.
2.
Power supply cables and the cables between indoor and outdoor unit shall not be lighter than polychloroprene sheathed exible cables. (Design
60245 IEC 57
)
3. Be sure to connect the cables between
indoor and outdoor unit directly to the units (no intermediate connections are allowed).
Intermediate connections may result in communication errors. If water enters at the intermediate connection point, it may cause insufcient
insulation to ground or a poor electrical contact .
(If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)
4. Install an earth longer than other cables.
5. Do not construct a system with a power supply that is turned ON and OFF frequently.
OCH583A

14
8-2. INDOOR – OUTDOOR CONNECTING CABLE
The cable shall not be lighter than design 60245 IEC or 60227 IEC.
Note: The Max. cable length may vary depending on the condition of installation, humidity or materials, etc.
Indoor unit-Outdoor unit
Outdoor power supply Max. 45 m
3 o1.5 (polar)
1 oMin. 1.5
Max. 50 m
3 o2.5 (polar)
1 oMin. 2.5
Max. 80 m
3 o2.5 (polar) and S3 separated
1 oMin. 2.5
Indoor unit-Outdoor unit earth
Wire No. oSize (mm²)
Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections).
Intermediate connections can lead to communication errors if water enters the cables and causes insufficient
insulation to ground or a poor electrical contact at the intermediate connection point.
Indoor unit-Outdoor unit
Indoor/Outdoor separate
power supply Max. 120 m
2 oMin. 0.3
—
Indoor unit-Outdoor unit earth
Wire No. oSize (mm²)
Note: The optional indoor power supply terminal kit is necessary.
Cross section of cable Wire size (mm2)Number of wires Polarity L(m)*5
Round 2.5 3 Clockwise : S1-S2-S3
(Pay attention to stripe of yellow and green.) (30)
*1
Flat 2.5 3 Not applicable
(since center wire has no cover finish.) Not applicable
*4
Flat 1.5 4 From left to right : S1-Open-S2-S3 (18)
*2
Round 2.5 4 Clockwise : S1-S2-S3-Open
(Connect S1 and S3 to the opposite angle.) (30)
*3
Note: Power supply cords of appliances shall not be lighter than design 60245 IEC or
227 IEC.
*1 In case that cable with stripe of yellow and green is available.
*2 In case of regular polarity connection (S1-S2-S3), wire size is 1.5 mm2.
*3 In case of regular polarity connection (S1-S2-S3).
*4 In the flat cables are connected as this picture, they can be used up to 30 m.
*5 Mentioned cable length is just a reference value.
It may be different depending on the condition of installation, humidity or
materials, etc.
(3C Flat cable × 2)
S1 S3S2
OCH583A

15
Unit: mm (in)
9REFRIGERANT SYSTEM DIAGRAM
Heat exchanger
Thermistor TH6
(2-phase pipe) Thermistor TH7
(Ambient)
Distributor
Accumulator
Compressor
Refrigerant GAS pipe
connection [25.4([1 inch)
Refrigerant LIQUID pipe
SW160 : connection [9.52([3/8 inch)
SW200 : connection [12.7([1/2 inch)
Stop valve
(with service port)
4-way valve
Linear expansion valve A
Thermistor TH32
(Comp. surface)
Muffler
Ball valve
#50
Strainer
Oil return hole
with strainer #40
Strainer
#100
Strainer
#100 Strainer #100
Refrigerant flow in cooling
Refrigerant flow in heating
Charge plug
(High pressure)
<Brazing>
Thermistor TH8
(Heat sink)
HEX
Stop valve
Thermistor TH3
(Liquid)
LEV-A
High pressure
switch 63H
Charge plug
(Low pressure)
High pressure
sensor 63HS
PUHZ-SW160YKA.UK PUHZ-SW200YKA.UK
PUHZ-SW160YKA-BS.UK PUHZ-SW200YKA-BS.UK
PUHZ-SW160YKAR1.UK PUHZ-SW200YKAR1.UK
PUHZ-SW160YKAR1-BS.UK PUHZ-SW200YKAR1-BS.UK
9-1. REFRIGERANT SYSTEM DIAGRAM
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16
9-2. REFRIGERANT COLLECTING (PUMP DOWN)
When relocating or disposing of the indoor/outdoor unit, pump down the system following the procedure below so that no refriger-
ant is released into the atmosphere.
1 Turn off the power supply (circuit breaker).
2 Connect the low-pressure valve on the gauge manifold to the charge plug (low pressure side) on the outdoor unit.
3 Close the liquid stop valve completely.
4 Supply power (circuit breaker).
• When power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controller. If “CEN-
TRALLY CONTROLLED” is displayed, the refrigerant collecting (pump down) cannot be completed normally.
• Startup of the indoor-outdoor communication takes about 3 minutes after the power (circuit breaker) is turned on. Start the
pump-down operation 3 to 4 minutes after the power (circuit breaker) is turned on.
5 Perform the refrigerant collecting operation (cooling test run).
• Push the pump-down SWP switch (push-button type) on the control board of the outdoor unit. The compressor and ventilators
(indoor and outdoor units) start operating (refrigerant collecting operation begins). (LED1 and LED2 on the control board of
the outdoor unit are lit.)
• Only push the pump-down SWP switch if the unit is stopped. However, even if the unit is stopped and the pump-down SWP
switch is pushed less than 3 minutes after the compressor stops, the refrigerant collecting operation cannot be performed.
Wait until the compressor has been stopped for 3 minutes and then push the pump-down SWP switch again.
6 Fully close the ball valve on the gas pipe side of the outdoor unit when the pressure gauge on the gauge manifold shows 0.05
to 0 MPa [Gauge] (approx. 0.5 to 0 kgf/cm²) and quickly stop the air conditioner.
• Because the unit automatically stops in about 3 minutes when the refrigerant collecting operation is completed (LED1 off,
LED2 lit), be sure to quickly close the gas ball valve. However, if LED1 is lit, LED2 is off, and the unit is stopped, open the
liquid stop valve completely, close the valve completely after 3 minutes or more have passed, and then repeat step 5. (Open
the gas ball valve completely.)
• If the refrigerant collecting operation has been completed normally (LED1 off, LED2 lit), the unit will remain stopped until the
power supply is turned off.
• Note that when the extension piping is very long with a large refrigerant amount, it may not be possible to perform a pump
down operation. In this case, use refrigerant recovery equipment to collect all of the refrigerant in the system.
7 Turn off the power supply (circuit breaker), remove the gauge manifold, and then disconnect the refrigerant pipes.
Warning:
When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.
• If the refrigerant pipes are disconnected while the compressor is operating and the stop valve (ball valve) is open, the
pressure in the refrigeration cycle could become extremely high if air is drawn in, causing the pipes to burst, personal
injury, etc.
Note: This section is applicable only for PAC-IF061/062B-E/PAC-SIF051B-E or later models.
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10 TROUBLESHOOTING
<Check code displayed by self-diagnosis and actions to be taken for service (summary)>
Present and past check codes are logged, and they can be displayed on the wired remote controller and control board of out-
door unit. Actions to be taken for service, which depends on whether or not the trouble is reoccurring in the field, are summa-
rized in the table below. Check the contents below before investigating details.
10-1. TROUBLESHOOTING
Unit conditions at service Check code Actions to be taken for service (summary)
The trouble is reoccurring.
Displayed
Not displayed
Judge what is wrong and take a corrective action according
to “10-2. SELF-DIAGNOSIS ACTION TABLE”.
Conduct trouble shooting and ascertain the cause of the
trouble according to “10-3. TROUBLESHOOTING OF
PROBLEMS”.
The trouble is not reoccurring.
Logged
Not logged
1Consider the temporary defects such as the work of
protection devices in the refrigerant circuit including
compressor, poor connection of wiring, noise, etc.
Re-check the symptom, and check the installation
environment, refrigerant amount, weather when the
trouble occurred, matters related to wiring, etc.
2Reset check code logs and restart the unit after finishing
service.
3There is no abnormality in electrical component,
controller board, remote controller, etc.
1Re-check the abnormal symptom.
2Conduct trouble shooting and ascertain the cause of the
trouble
according to “10-3. TROUBLESHOOTING OF
PROBLEMS”.
3Continue to operate unit for the time being if the cause
is not ascertained.
4There is no abnormality concerning of parts such as
electrical component, controller board, remote controller,
etc.
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10-2. SELF-DIAGNOSIS ACTION TABLE
<Abnormalities detected when the power is put on> Note: Refer to indoor unit section for codes starting with P and E.
Check Code Abnormal points and detection method
Case Judgment and action
None —
1 No voltage is supplied to termi-
nal block (TB1) of outdoor unit.
a) Power supply breaker is
turned off.
b) Contact failure or disconnec-
tion of power supply terminal
c) Open phase (L2 or N phase)
2 Electric power is not supplied
to power supply terminal of out-
door power circuit board.
a) Contact failure of power
supply terminal
b) Open phase on the outdoor
power circuit board
(Disconnection of terminal
on outdoor power circuit
board)
3 Electric power is not supplied
to outdoor controller circuit
board.
a) Disconnection of connector
(CNDC)
4
Disconnection of reactor (ACL4)
5 Disconnection of outdoor noise
filter circuit board or parts fail-
ure in outdoor noise filter circuit
board
6 Defective outdoor power circuit
board
7 Open of rush current protect
resistor (RS)
8 Defective outdoor controller
circuit board
1 Check following items.
a) Power supply breaker
b) Connection of power supply terminal block
(TB1)
c) Connection of power supply terminal block
(TB1)
2 Check following items.
a) Connection of power supply terminal block
(TB1)
b) Connection of terminal on outdoor power
circuit board
3Check connection of the connector (CNDC)
on the outdoor controller circuit board.
Check connection of the connector CNDC
on the noise filter circuit board. Refer to "10-
6. TEST POINT DIAGRAM".
4Check connection of reactor. (
ACL4 )
Refer to "8. WIRING DIAGRAM".
5 a) Check connection of outdoor noise filter
circuit board.
b) Replace outdoor noise filter circuit board.
Refer to "10-6. TEST POINT DIAGRAM".
6 Replace outdoor power circuit board.
7 Replace rush current protect resistor (RS)
Power circuit board might be short-circuit.
Check the power circuit board. (Refer to "10-
6. TEST POINT DIAGRAM".)
8 Replace controller board. (When items
above are checked but the units cannot be
repaired.)
F5
(5201)
63H connector open
Abnormal if 63H connector circuit is open
for 3 minutes continuously after power sup-
ply.
63H: High-pressure switch
1 Disconnection or contact failure
of 63H connector on outdoor
controller circuit board
2 Disconnection or contact failure
of 63H
3 63H is working due to defective
parts.
4 Defective outdoor controller
circuit board
1 Check connection of 63H connector on
outdoor controller circuit board.
Refer to "10-6. TEST POINT DIAGRAM".
2 Check the 63H side of connecting wire.
3 Check continuity by tester.
Replace the parts if the parts are defective.
4 Replace outdoor controller circuit board.
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Check Code Abnormal points and detection method
Judgment and action
Eb
(6845)
Miswiring of indoor/outdoor unit
connecting wire (converse wiring or
disconnection)
Outdoor controller circuit board can
automatically set the unit number of indoor
units.
Abnormal if the indoor unit number cannot
be set within 4 minutes after power on
because of miswiring (converse wiring
or disconnection) of indoor/outdoor unit
connecting wire.
EC
(6846)
Startup time over
The unit cannot finish startup process
within 4 minutes after power on.
Case
1 Contact failure of indoor/
outdoor unit connecting wire
2 Diameter or length of indoor/
outdoor unit connecting wire is
out of specified capacity.
7 2 or more outdoor units have
refrigerant address “0” .
(In case of group control)
8 Noise has entered into power
supply or indoor/outdoor unit
connecting wire.
1 Contact failure or miswiring of
indoor/outdoor unit connecting
wire
2 Diameter or length of indoor/
outdoor unit connecting wire is
out of specified capacity.
4 Defective transmitting receiving
circuit of outdoor controller circuit
board
5 Defective transmitting receiving
circuit of indoor controller board
6 Defective indoor power board
7 2 or more outdoor units have
refrigerant address “0” .
(In case of group control)
8 Noise has entered into power
supply or indoor/outdoor unit
connecting wire.
Miswiring of indoor/outdoor unit
connecting wire
1. Outdoor controller circuit board can
automatically check the number of
connected indoor units. Abnormal if the
number cannot be checked automatically
due to miswiring of indoor/outdoor unit
connecting wire, etc. after power is
turned on for 4 minutes.
2. Abnormal if outdoor controller circuit
board recognizes excessive number of
indoor units.
1 Check disconnection or looseness or polarity
of indoor/outdoor unit connecting wire of
indoor and outdoor units.
2 Check diameter and length of indoor/outdoor
unit connecting wire.
Total wiring length: 80 m
(including wiring connecting each indoor unit
and between indoor and outdoor unit)
Also check if the connection order of flat
cable is S1, S2, S3.
3 Check the number of indoor units that are
connected to one outdoor unit. (If EA is
detected)
4–6 Turn the power off once, and on again to
check.
Replace outdoor controller circuit board,
indoor controller board or indoor power
board if abnormality occurs again.
7 Check if refrigerant addresses (SW1-3 to
SW1-6 on outdoor controller circuit board) are
overlapping in case of group control system.
8 Check transmission path, and remove the
cause.
Note: The descriptions above 1–8, are for EA,
Eb and EC.
1 Contact failure or miswiring of
indoor/outdoor unit connecting
wire
2 Diameter or length of indoor/
outdoor unit connecting wire is
out of specified capacity.
3 Excessive number of indoor
units are connected to 1 out-
door unit.
4 Defective transmitting receiving
circuit of outdoor controller
circuit board
5 Defective transmitting receiving
circuit of indoor controller board
6 Defective indoor power board
7 2 or more outdoor units have
refrigerant address “0” .
(In case of group control)
8 Noise has entered into power
supply or indoor / outdoor unit
connecting wire.
EA
(6844)
OCH583A

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Check Code Abnormal points and detection method
Judgment and action
U1
(1302)
High pressure (High-pressure switch
63H operated)
Abnormal if high-pressure switch 63H
(4.15MPa) operated during compressor
operation.
1 Decreased water flow
2 Clogged filter of water pipe
3 Locked water pump
4 Malfunction of water pump
5 Dirt of indoor heat exchanger
6 Defective operation of stop
valve (Not full open)
7 Clogged or broken pipe
8 Locked outdoor fan motor
9
Malfunction of outdoor fan motor
0 Short cycle of outdoor unit
1 Dirt of outdoor heat exchanger
2 Decreased airflow caused by
defective inspection of outside
temperature thermistor
(It detects lower temperature
than actual temperature.)
3 Disconnection or contact failure
of connector (63H) on outdoor
controller board
4 Disconnection or contact failure
of 63H connection
5 Defective outdoor controller board
6 Defective action of linear
expansion valve
7 Malfunction of fan driving circuit
1−5 Check water circuit and repair defect.
6 Check if stop valve is fully open.
7 Check piping and repair defect.
8−1 Check outdoor unit and repair defect.
2 Check the detected temperature of outside
temperature thermistor on LED display.
(SW2 on A-Control Service Tool : Refer
to "10-7. FUNCTION OF SWITCHES,
CONNECTORS AND JUMPERS".)
3−5 Turn the power off and check if F5 is
displayed when the power is turned on
again.
When F5 is displayed, refer to “Judgment
and action” for F5.
6 Check linear expansion valve.
Refer to "10-4. HOW TO CHECK THE PARTS" .
7 Replace outdoor controller board.
Case
U2
(TH32:1132)
High comp. surface temperature
(1)
Abnormal if comp. surface thermistor (TH32)
exceeds 125°C or 115°C continuously for
5 minutes.
Abnormal if comp. surface thermistor (TH32)
exceeds 110°C or more continuously for
30 seconds after 90 seconds have passed
since the defrosting operation started.
(2) Abnormal if discharge superheat
(Cooling: TH32−T63HS
Heating: TH32−T63HS ) increases.
All the conditions in A or B are detected
simultaneously for 10 minutes continu-
ously after 6 minutes past from compres-
sor startup (including the thermostat indi-
cation or recovery from defrosting).
<Condition A>
• Heating mode
• When discharge superheat is less than
70 °C .
• When the TH6 temp is more than the
value obtained by TH7−5:.
• When the condensing temp of TH5 is
less than 35:.
<Condition B>
• During compressor operation (Cooling
and Heating)
• When discharge superheat is less than
80 °C in Cooling.
• When discharge superheat is less than
90 °C in Heating.
• When condensing temp of TH6 is
more than −40:. (In Cooling only.)
1 Overheated compressor
operation caused by shortage
of refrigerant
2 Defective operation of stop
valve
3 Defective thermistor
4 Defective outdoor controller
board
5 Defective action of linear
expansion valve
1 Check intake superheat.
Check leakage of refrigerant.
Charge additional refrigerant.
2 Check if stop valve is fully open.
34 Turn the power off and check if U3 is
displayed when the power is on again.
When U3 is displayed, refer to “Judgment
and action” for U3.
5 Check linear expansion valve.
Refer to "10-4. HOW TO CHECK THE
PARTS".
<Abnormalities detected while unit is operating>
U3
(TH32:5132)
Open/short circuit of comp. surface
thermistor (TH32)
Abnormal if open (−20°C or less) or
short (217°C or more) is detected during
compressor operation.
(Detection is inoperative for 10 minutes
of compressor starting process and for 10
minutes after and during defrosting.)
1 Disconnection or contact failure
of connector (TH32) on the
outdoor controller circuit board
2 Defective thermistor
3 Defective outdoor controller
circuit board
1
Check connection of connector (TH32) on the
outdoor controller circuit board. Check breaking
of the lead wire for thermistor TH32). Refer to
"10-6. TEST POINT DIAGRAM".
2 Check resistance value of thermistor (TH32)
or temperature by microprocessor.(Thermistor/
TH32: Refer to "10-4. HOW TO CHECK THE
PARTS".)(SW2 on A-Control Service Tool:
Refer to "10-7. FUNCTION OF SWITCHES,
CONNECTORS AND JUMPERS".)
3 Replace outdoor controller board.
OCH583A