Mitsubishi Electric PUHZ-SW75VHAR6 User manual

SERVICE MANUAL
CONTENTS
1. REFERENCE MANUAL ................................. 2
2. SAFETY PRECAUTION ................................. 3
3. FEATURES..................................................... 7
4. SPECIFICATIONS .......................................... 8
5. DATA............................................................... 9
6. OUTLINES AND DIMENSIONS ...................11
7. WIRING DIAGRAM ......................................14
8. WIRING SPECIFICATIONS.......................... 17
9. REFRIGERANT SYSTEM DIAGRAM
.............18
10. TROUBLESHOOTING..................................21
11. DISASSEMBLY PROCEDURE.....................65
R410A
PUHZ-SW75VHAR6
Note:
• This manual describes
service data of the outdoor
units only.
PARTS CATALOG (OCB755)
No. OCH755
September 2020
SPLIT-TYPE, AIR TO WATER HEAT PUMP
Outdoor unit
[Model Name]
PUHZ-SW75VHA
PUHZ-SW100VHA
PUHZ-SW120VHA
PUHZ-SW100YHA
PUHZ-SW120YHA
[Service ref.]
PUHZ-SW75VHAR6
PUHZ-SW100VHAR6
PUHZ-SW120VHAR6
PUHZ-SW100YHAR6
PUHZ-SW120YHAR6

2
OCH755
1REFERENCE MANUAL
INDOOR UNIT SERVICE MANUAL
Model name Service ref. Service manual No.
EHST20C-VM6HB
EHST20C-YM9HB
EHST20C-TM9HB
EHST20C-VM2B
EHST20C-VM6B
EHST20C-YM9B
EHST20C-VM6EB
EHST20C-YM9EB
EHST20C-VM6SB
EHST20C-VM6HB.UK
EHST20C-YM9HB.UK
EHST20C-TM9HB.UK
EHST20C-VM2B.UK
EHST20C-VM6B.UK
EHST20C-YM9B.UK
EHST20C-VM6EB.UK
EHST20C-YM9EB.UK
EHST20C-VM6SB.UK
OCH531/OCB531
EHSC-VM2B
EHSC-VM6B
EHSC-YM9B
EHSC-TM9B
EHSC-VM6EB
EHSC-YM9EB
ERSC-VM2B
EHSC-VM2B.UK
EHSC-VM6B.UK
EHSC-YM9B.UK
EHSC-TM9B.UK
EHSC-VM6EB.UK
EHSC-YM9EB.UK
ERSC-VM2B.UK OCH532/OCB532
EHST20C-VM2C
EHST20C-VM6C
EHST20C-YM9C
EHST20C-TM9C
EHST20C-VM2EC
EHST20C-VM6EC
EHST20C-YM9EC
EHST20C-MHCW
EHST20C-MEC
ERST20C-VM2C
ERST20C-MEC
EHST20D-VM2C
EHST20D-VM2EC
EHST20D-YM9C
EHST20D-MHCW
EHST20D-MEC
EHST20D-MHC
ERST20D-VM2C
ERST20D-MEC
EHST20C-VM2C(R2).UK
EHST20C-VM6C(R2).UK
EHST20C-YM9C(R2).UK
EHST20C-TM9C(R2).UK
EHST20C-VM2EC(R2).UK
EHST20C-VM6EC(R2).UK
EHST20C-YM9EC(R2).UK
EHST20C-MHCW(R2).UK
EHST20C-MEC(R2).UK
ERST20C-VM2C(R2).UK
ERST20C-MEC(R2).UK
EHST20D-VM2C(R2).UK
EHST20D-VM2EC(R2).UK
EHST20D-YM9C(R2).UK
EHST20D-MHCW(R2).UK
EHST20D-MEC(R2).UK
EHST20D-MHC(R2).UK
ERST20D-VM2C(R2).UK
ERST20D-MEC(R2).UK
OCH570/OCB570
EHSC-MEC
EHSC-VM2C
EHSC-VM2EC
EHSC-VM6C
EHSC-VM6EC
EHSC-YM9C
EHSC-YM9EC
EHSC-TM9C
ERSC-MEC
ERSC-VM2C
EHSD-MC
EHSD-MEC
EHSD-VM2C
EHSD-YM9C
ERSD-VM2C
EHSC-MEC(R2).UK
EHSC-VM2C(R2).UK
EHSC-VM2EC(R2).UK
EHSC-VM6C(R2).UK
EHSC-VM6EC(R2).UK
EHSC-YM9C(R2).UK
EHSC-YM9EC(R2).UK
EHSC-TM9C(R2).UK
ERSC-MEC(R2).UK
ERSC-VM2C(R2).UK
EHSD-MC(R1/R2).UK
EHSD-MEC(R2).UK
EHSD-VM2C(R2).UK
EHSD-YM9C(R2).UK
ERSD-VM2C(R2).UK OCH571/OCB571
EHSC-MED
EHSC-VM2D
EHSC-VM6D
EHSC-YM9D
EHSC-YM9ED
EHSC-TM9D
ERSC-MED
ERSC-VM2D
ERSC-VM6D
ERSC-YM9D
EHSC-MED.UK
EHSC-VM2D.UK
EHSC-VM6D.UK
EHSC-YM9D.UK
EHSC-YM9ED.UK
EHSC-TM9D.UK
ERSC-MED.UK
ERSC-VM2D.UK
ERSC-VM6D.UK
ERSC-YM9D.UK OCH712/OCB712
EHST20C-MED
EHST20C-VM2D
EHST20C-VM6D
EHST20C-YM9D
EHST20C-YM9ED
EHST20C-TM9D
ERST20C-VM2D
ERST20C-VM6D
ERST20C-YM9D
EHST30C-MED
EHST30C-VM6ED
EHST30C-YM9ED
EHST30C-TM9ED
ERST30C-VM2ED
ERST30C-VM6ED
ERST30C-YM9ED
EHST20C-MED(R1).UK
EHST20C-VM2D(R1).UK
EHST20C-VM6D(R1).UK
EHST20C-YM9D(R1).UK
EHST20C-YM9ED(R1).UK
EHST20C-TM9D(R1).UK
ERST20C-VM2D(R1).UK
ERST20C-VM6DR1.UK
ERST20C-YM9DR1.UK
EHST30C-MED(R1).UK
EHST30C-VM6ED(R1).UK
EHST30C-YM9ED(R1).UK
EHST30C-TM9ED(R1).UK
ERST30C-VM2ED(R1).UK
ERST30C-VM6EDR1.UK
ERST30C-YM9EDR1.UK
OCH714/OCB714

3
OCH755
2SAFETY PRECAUTION
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 contamination
such as sulfur hazardous for use, oxides, dirt,
shaving particles, etc.
In addition, use pipes with specified thickness.
Store the piping indoors, and both ends of the
piping sealed until just before brazing.
(Leave elbow joints, etc. in their packaging.)
Use ester oil, ether oil or alkylbenzene oil (small
amount) as the refrigerant oil applied to flares
and flange connections.
In the case of using the existing pipes for R22, be careful
with the following:
· Be sure to perform replacement operation before test run.
· 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.
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
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.
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.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
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.
2-1. ALWAYS OBSERVE FOR SAFETY
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 breaker.
• 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.

4
OCH755
Electronic weighing scale
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
[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) If moisture or foreign matter might have entered the refrigerant piping during service, ensure to remove them.
[2] Additional refrigerant charge
When charging directly from cylinder
(1) Check that cylinder for R410A on the market is a syphon type.
(2) Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
No. Tool name Specifications
1Gauge manifold · Only for R410A
· Use the existing fitting specifications. (UNF1/2)
· Use high-tension side pressure of 5.3 MPa·G or over.
2Charge hose · Only for R410A
· Use pressure performance of 5.09 MPa·G or over.
3Electronic weighing 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 —

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OCH755
2-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES
Flowchart
• Refer to the owchart below to determine if the existing pipes can be used and if it is necessary to use a lter dryer.
• If the diameter of the existing pipes is different from the specied diameter, refer to technical data materials to conrm if the pipes can be used.
Perform the airtight test, vacuum air
purging, additional refrigerant charging (if
necessary), and gas leak check.
Measure the existing pipe thickness
and check for damage.
The existing pipe thickness meets speci-
cations and the pipes are not damaged.
Check if the existing outdoor unit can
operate.
After operating the cooling system for
about 30 minutes, do a pump down work.
Disconnect the existing outdoor unit from
the pipes.
Attach the new outdoor unit
The existing pipes cannot be reused.
Use new pipes.
• If the existing outdoor unit cannot operate,
use a refrigerant recovery device to collect
the refrigerant.
Use new pipes for SW75, SW100 and SW120
models.
The existing pipe thickness does not meet
specications or the pipes are damaged.

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OCH755
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.
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 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 refrig-
erants. Therefore, to enhance airtightness and strength, 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 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.
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
0.8
0.8
1.0
—
0.8
0.8
0.8
1.0
1.0
Nominal
dimensions(inch)
Diagram below: Piping diameter and thickness
Outside
diameter (mm)
Thickness (mm)
R410A R22
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(inch)
Flare cutting dimensions
Outside
diameter
Dimension A ( )
+0
-0.4
(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(inch)
Flare nut dimensions
Outside
diameter
Dimension B
(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

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OCH755
3 FEATURES
PUHZ-SW75VHA
CHARGELESS SYSTEM
PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT.
(Maximum 10 m (PUHZ-SW75–120))
The refrigerant circuit with LEV (Linear Expansion Valve) and accumulator always control the optimal refrigerant level regard-
less of the length (10 m maximum and 5 m minimum) of piping. The additional refrigerant charging work during installation often
causes problems. Heretofore it is completely eliminated. This unique system improves the quality and reliability of the work done.
It also helps to speed up the installation time.
PUHZ-SW100VHA
PUHZ-SW100YHA
PUHZ-SW120VHA
PUHZ-SW120YHA

8
OCH755
4 SPECIFICATIONS
<Reference data> Plate heat exchanger (ACH70-40 plates)
Note: "COP" and "Power input" in the above table do NOT
contain the "pump input (based on EN 14511)".
Nominal water ow L/min 22.9
Heating
(A7/W35)
Capacity kW 8.00
COP 4.40
Power input kW 1.82
Heating
(A7/W45)
Capacity kW 8.00
COP 3.40
Power input kW 2.35
Heating
(A2/W35)
Capacity kW 7.50
COP 3.40
Power input kW 2.20
Heating
(A2/W45)
Capacity kW 7.50
COP 2.83
Power input kW 2.65
Nominal water ow L/min 18.9
Cooling
(A35/W7)
Capacity kW 6.60
EER 2.82
Power input kW 2.34
Cooling
(A35/W18)
Capacity kW 7.10
EER 4.43
Power input kW 1.60
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
Nominal water ow L/min 32.1
Heating
(A7/W35)
Capacity kW 11.2
COP 4.45
Power input kW 2.51
Heating
(A7/W45)
Capacity kW 11.2
COP 3.42
Power input kW 3.27
Heating
(A2/W35)
Capacity kW 10.0
COP 3.32
Power input kW 3.01
Heating
(A2/W45)
Capacity kW 10.0
COP 2.66
Power input kW 3.76
Nominal water ow L/min 26.1
Cooling
(A35/W7)
Capacity kW 9.10
EER 2.75
Power input kW 3.31
Cooling
(A35/W18)
Capacity kW 10.0
EER 4.35
Power input kW 2.30
PUHZ-SW75VHAR6
PUHZ-SW100VHAR6 PUHZ-SW100YHAR6
PUHZ-SW120VHAR6 PUHZ-SW120YHAR6
Nominal water ow L/min 45.9
Heating
(A7/W35)
Capacity kW 16.0
COP 4.10
Power input kW 3.90
Heating
(A7/W45)
Capacity kW 16.0
COP 3.23
Power input kW 4.95
Heating
(A2/W35)
Capacity kW 12.0
COP 3.24
Power input kW 3.70
Heating
(A2/W45)
Capacity kW 12.0
COP 2.52
Power input kW 4.76
Nominal water ow L/min 35.8
Cooling
(A35/W7)
Capacity kW 12.5
EER 2.32
Power input kW 5.39
Cooling
(A35/W18)
Capacity kW 14.0
EER 4.08
Power input kW 3.43

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OCH755
Service Ref. PUHZ-SW
75VHAR6 100VHAR6 120VHAR6 100YHAR6 120YHAR6
OUTDOOR UNIT
Power source (Phase, cycle, voltage) Single 50 Hz, 230 V 3-Phase 50 Hz, 400 V
Max. current A 17.0 29.5 29.5 13.0 13.0
External nish Munsell 3Y 7.8/1.1
Refrigerant control Linear Expansion Valve
Compressor Hermetic
Model SNB220FAGMC-L1 ANB33FNEMT ANB42FNEMT ANB33FNDMT ANB42FNDMT
Motor output kW 1.5 2.5 2.5 2.5 2.5
Starter type Inverter
Protection devices HP switch
Comp. surface thermo
Discharge thermo
Overcurrent detection
HP switch
LP switch
Comp. surface thermo
Discharge thermo
Over current detection
Crankcase heater W —
Heat exchanger Plate n coil
Fan Fan (drive) × No. Propeller fan x 1 Propeller fan x 2
Fan motor output kW 0.074 0.074+0.074
Airow
K/min (CFM)
55 (1,940) 100 (3,353)
Defrost method Reverse cycle
Noise level Cooling dB 48 50 51 50 51
Heating dB 51 54 54 54 54
Dimensions W mm (in) 950 (37-13/32)
D mm (in) 330+30 (13+1-3/16)
H mm (in) 943 (37-1/8) 1,350 (53-1/8)
Weight kg (lb) 75 (166) 118 (261) 130(287)
Refrigerant R410A
Quantity chargeless kg (lb) 3.2 (7.0) 4.6 (10.1)
Oil (Model) L 0.60 (FV50S) 1.40 (FV50S)
Refrigerant piping
Pipe size OD Liquid mm (in) 9.52 (3/8)
Gas mm (in) 15.88 (5/8)
Connection
method
Indoor side Flared
Outdoor side Flared
Between the
indoor & outdoor
Height difference Maximum 30 m
Piping length 2 to 40 m 2 to 75 m
5DATA
5-1. REFILLING REFRIGERANT CHARGE (R410A : kg)
5-2. COMPRESSOR TECHNICAL DATA
Service Ref. Piping length (one way) Initial
charge
10 m 20 m 30 m 40 m 50 m 60 m 75 m
PUHZ-SW75VHAR6 3.2 3.35 3.5 4.1 — — — 3.2
PUHZ-SW100V/YHAR6 4.6 4.8 5.0 5.6 6.2 6.8 7.5 4.6
PUHZ-SW120V/YHAR6 4.6 4.8 5.0 5.6 6.2 6.8 7.5 4.6
Additional charge is required for pipes
longer than 10 m.
Service Ref. PUHZ-SW75VHAR6 PUHZ-SW100VHAR6 PUHZ-SW120VHAR6 PUHZ-SW100YHAR6 PUHZ-SW120YHAR6
Compressor model SNB220FAGMC-L1 ANB33FNEMT ANB42FNEMT ANB33FNDMT ANB42FNDMT
Winding
Resistance (Ω)
U-V 0.95 0.19 0.30
U-W 0.95 0.19 0.30
W-V 0.95 0.19 0.30
(Winding temperature at 20°C)

10
OCH755
5-3. NOISE CRITERION CURVES
1.5m
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
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PUHZ-SW75VHAR6
COOLING
MODE
HEATING
48
SPL(dB)
51
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
PUHZ-SW100VHAR6
PUHZ-SW100YHAR6
COOLING
MODE
HEATING
50
SPL(dB)
54
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
PUHZ-SW120VHAR6
PUHZ-SW120YHAR6
COOLING
MODE
HEATING
51
SPL(dB)
54
LINE