Mitsubishi OCH415D Service Manual
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SERVICE MANUAL
R410A
Outdoor unit
[model names]
PUHZ-P100VHA2
PUHZ-P125VHA2
PUHZ-P140VHA2
PUHZ-P100VHA3
PUHZ-P125VHA3
PUHZ-P140VHA3
PUHZ-P100YHA
PUHZ-P125YHA
PUHZ-P140YHA
[Service Ref.]
PUHZ-P100VHA2.UK
PUHZ-P125VHA2.UK
PUHZ-P125VHA2
1
.UK
PUHZ-P140VHA2.UK
PUHZ-P140VHA2
1
.UK
PUHZ-P100VHA3.UK
PUHZ-P100VHA3R1.UK
PUHZ-P100VHA3R2.UK
PUHZ-P125VHA3.UK
PUHZ-P125VHA3R1.UK
PUHZ-P125VHA3R2.UK
PUHZ-P140VHA3.UK
PUHZ-P140VHA3R1.UK
PUHZ-P140VHA3R2.UK
PUHZ-P100YHA.UK
PUHZ-P125YHA.UK
PUHZ-P140YHA.UK
November 2009
No.OCH415
REVISED EDITION-D
Revision:
• PUHZ-P100/125/140
VHA3R2.UK and PUHZP100/125/140YHA.UK
are added in REVISED
EDITION-D.
• Some descriptions have
been modified.
• Please void OCH415
REVISED EDITION-C.
Note:
• RoHS compliant products
have <G> mark on the
spec name plate.
PUHZ-P100VHA2.UK
PUHZ-P100VHA3.UK
CONTENTS
1. TECHNICAL CHANGES
2. REFERENCE MANUAL
3. SAFETY PRECAUTION
4. FEATURES
5. SPECIFICATIONS
6. DATA
7. OUTLINES AND DIMENSIONS
8. WIRING DIAGRAM
9. WIRING SPECIFICATIONS
10.
REFRIGERANT SYSTEM DIAGRAM
11. TROUBLESHOOTING
12. FUNCTION SETTING
13. EASY MAINTENANCE FUNCTION
14.
MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER
15. DISASSEMBLY PROCEDURE
......................................................
...............................................................
.................................
..................................
..................................
...........................................
....................
.......................................
..........................
...............
...................................
....................................
..............
...
...................
105
2
2
3
6
7
9
12
20
23
28
31
85
92
95
PARTS CATALOG (OCB415)
1
TECHNICAL CHANGES
PUHZ-P100VHA3R1.UK PUHZ-P100VHA3R2.UK
PUHZ-P125VHA3R1.UK
PUHZ-P125VHA3R2.UK
PUHZ-P140VHA3R1.UK PUHZ-P140VHA3R2.UK
• Thermiostor <Discharge/TH4> has been changed to Thermistor <Comp. Surface/TH32>.
• Electrical parts, Controller circuit board (C.B.), Power circuit board (P.B.), Noise filter circuit board (N.F.) and Active filter module (ACTM)(inclucling P.B.) have been changed.
PUHZ-P100VHA3.UK PUHZ-P100VHA3R1.UK
PUHZ-P125VHA3.UK PUHZ-P125VHA3R1.UK
PUHZ-P140VHA3.UK PUHZ-P140VHA3R1.UK
• Fan grille has been changed.
• Structural parts have been changed. (Munsell 5Y 7/1 → 3Y 7.8/1.1)
PUHZ-P100VHA2.UK PUHZ-P100VHA3.UK
PUHZ-P125VHA21.UK PUHZ-P125VHA3.UK
PUHZ-P140VHA21.UK PUHZ-P140VHA3.UK
OUTDOOR CONTROLLER BOARD (C.B) has been changed.
(Corresponding to the additional combination between PKA-RP•HAL/KAL, PCA-RP•KA and PEAD-RP•JA(L))
* In case of UL error, the compressor may be damaged if the unit is restarted by remote controller.
To avoid the damage, unit has the system that is not able to be restarted unless the power is turned OFF once.
PUHZ-P125VHA2.UK PUHZ-P125VHA21.UK
PUHZ-P140VHA2.UK PUHZ-P140VHA21.UK
4-WAY VALVE and COIL (21S4) have been changed.
2
REFERENCE MANUAL
INDOOR UNIT’S SERVICE MANUAL
Model name Service Ref.
PLA-RP50/60/71/100/125/140BA
PLA-RP140BA2
PCA-RP50/60/71/100/125/140GA PCA-RP50/60/71/100/125/140GA(#1)
PCA-RP50GA2 PCA-RP50GA2(#1)
PCA-RP71/125HA
PKA-RP50GAL PKA-RP50GAL(#1)
PKA-RP60/71/100FAL PKA-RP60/71/100FAL(#1)
PKA-RP50FAL2 PKA-RP50FAL2(#1)
PEAD-RP50/60/71/125/140EA
PEAD-RP100EA2
PEAD-RP60/71/100GA
PLA-RP50/60/71/100/125/140BA(#2).UK
PLA-RP50/60/71BA
PLA-RP140BA2R1.UK
PCA-RP71/125HA(#1)
PEAD-RP50/60/71/125/140EA(#1).UK
PEAD-RP100EA2(#1).UK
PEAD-RP60/71/100GA(#1).UK
1.UK
Service
Manual No.
OCH412
OCB412
OC328
OC329
OC330
OC331
HWE0521
HWE0506
PKA-RP60/71/100KAL
PKA-RP35/50HAL
PCA-RP50/60/71/100/125/140KA
PEAD-RP35/50/60/71/100/125/140JA(L)
PKA-RP60/71/100KAL.TH
PKA-RP35/50HAL
PCA-RP50/60/71/100/125/140KA
PEAD-RP35/50/60/71/100/125/140JA(L).UK
2
OCH452
OCB452
OCH453
OCB453
OCH454
OCB454
HWE08130
BWE08240
3
SAFETY PRECAUTION
3-1. 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 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.
3-2. CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilizing refrigerant R410A
Use new refrigerant pipes.
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.
Make sure that the inside and outside of refrigerant 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.
Contamination inside refrigerant piping can cause deterioration of refrigerant oil etc.
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.)
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of compressor.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrigerant 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.
Tools for R410A
Gauge manifold
Charge hose
Gas leak detector
Torque wrench
Flare tool
Size adjustment gauge
Vacuum pump adaptor
Electronic refrigerant
charging scale
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of compressor.
Use ester oil, ether oil or alkylbenzene oil (small
amount) as the refrigerant oil applied to flares
and flange connections.
If large amount of mineral oil enters, 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.
3
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigerant will change 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.
[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.)
Unit
Gravimeter
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No.
Gauge manifold
1
Charge hose
2
Electronic scale
3
Gas leak detector · Use the detector for R134a, R407C or R410A.
4
Adaptor for reverse flow check · Attach on vacuum pump.
5
Refrigerant charge base
6
Refrigerant cylinder
7
Refrigerant recovery equipment
8
Tool name
· Only for R410A
· Use the existing fitting
· Use high-tension side pressure of 5.3 MPa·G or over.
· Only for R410A
· Use pressure performance of 5.09 MPa·G or over.
· Only for R410A · Top of cylinder (Pink)
· Cylinder with syphon
Specifications
specifications
—
—
—
. (UNF1/2)
4
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.
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.)
Diagram below: Piping diameter and thickness
Nominal
dimensions(inch)
1/4
3/8
1/2
5/8
3/4
Outside
diameter
6.35
9.52
12.70
15.88
19.05
(mm)
Thickness
R410A R22
0.8
0.8
0.8
1.0
—
(mm)
0.8
0.8
0.8
1.0
1.0
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 refrigerants. Therefore, to enhance airtightness and intensity, flare cutting dimension of copper pipe for R410A have been specified separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R410A also
have partly been changed to increase intensity as shown below. Set copper pipe correctly referring to copper pipe flaring
dimensions for R410A below. For 1/2 and 5/8 inch, the dimension B changes. Use torque wrench corresponding to each
dimension.
Dimension A
Flare cutting dimensions
Nominal
dimensions(inch)
1/4
3/8
1/2
5/8
3/4
Outside
diameter
6.35
9.52
12.70
15.88
19.05
Dimension A
R410A R22
9.1
13.2
16.6
19.7
—
+0
( )
-0.4
9.0
13.0
16.2
19.4
23.3
(mm)
Flare nut dimensions
dimensions(inch)
Nominal
1/4
3/8
1/2
5/8
3/4
Outside
diameter
6.35
9.52
12.70
15.88
19.05
R410A
17.0
22.0
26.0
29.0
3 Tools for R410A (The following table shows whether conventional tools can be used or not.)
Tools and materials Use R410A tools Can R22 tools be used?
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 thermistor vacuum gauge and
vacuum valve
Charging cylinder
: 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.
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 refrigerant 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 adopter 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
(Usable if equipped
with adopter for rever se flow)
(Usable by adjusting
flaring dimension)
Dimension B
(mm)
Dimension B
+
—
R22
17.0
22.0
24.0
27.0
36.0
Can R407C tools be used?
Ester oil:
Alkylbenzene oil: minimum amount
(Usable if equipped
with adopter for rever se flow)
(Usable by adjusting
flaring dimension)
+36.0mm for
indoor unit
of RP100,
125 and 140
5
4 FEATURES
PUHZ-P100VHA2.UK
PUHZ-P100VHA3.UK
PUHZ-P125VHA2.UK
PUHZ-P140VHA2.UK
PUHZ-P125VHA2
PUHZ-P140VHA2
1.UK
1.UK
PUHZ-P125VHA3.UK
PUHZ-P140VHA3.UK
PUHZ-P125VHA3R1.UK
PUHZ-P100VHA3R1.UK
PUHZ-P100VHA3R2.UK
PUHZ-P100YHA.UK
PUHZ-P140VHA3R1.UK
PUHZ-P125VHA3R2.UK
PUHZ-P140VHA3R2.UK
PUHZ-P125YHA.UK
PUHZ-P140YHA.UK
CHARGELESS SYSTEM
PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT.
(Max. 30m (PUHZ-P125/P140))
The refrigerant circuit with LEV (Linear Expansion Valve) and Accumulator always control the optimal refrigerant level regardless
of the length (30m max. and 5m min.) 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.
6
5 SPECIFICATIONS
Service Ref.
Mode
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) % No.
Fan motor output
OUTDOOR UNIT
Airflow
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
REFRIGERANT PIPING
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Running current
Max. current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Crankcase heater
Heat exchanger
Fan Fan(drive) % No.
Fan motor output
Airflow
OUTDOOR UNIT
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
REFRIGERANT PIPING
Running current
*
/min(CFM
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
mm(in.)
mm(in.)
/min(CFM
*
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
mm(in.)
mm(in.)
kW
W
kW
dB
dB
A
A
kW
W
kW
dB
dB
PUHZ-P100VHA2.UK
PUHZ-P100VHA3.UK
PUHZ-P100VHA3R1.UK
Cooling
A
A
)
L
Cooling
17.37
)
L
12.26
Munsell 5Y 7/1 / Munsell 3Y 7.8/1.1 (VHA3R1 / R2)
PUHZ-P125VHA2.UK
PUHZ-P125VHA2
PUHZ-P125VHA3.UK
PUHZ-P125VHA3R1.UK
PUHZ-P125VHA3R2.UK
28
Munsell 5Y 7/1 / Munsell 3Y 7.8/1.1 (VHA3R1 / R2)
3.4
51
55
PUHZ-P100VHA3R2.UK
Single, 50Hz, 230V
28
Linear Expansion Valve
Hermetic
TNB220FLHMT
2.9
Inverter
HP switch
Discharge thermo
—
Plate fin coil
Propeller fan % 1
0.060
60(2120)
Reverse cycle
50
54
950(37-3/8)
330+30(13+1-3/16)
943(37-1/8)
75(165)
R410A
3.0(6.6)
0.87(FV50S)
9.52(3/8)
15.88(5/8)
Flared
Flared
Max. 30m
Max. 50m
1.UK
Heating
Single 50Hz, 230V
16.74
Linear Expansion Valve
Hermetic
TNB306FPGM
Inverter
HP switch
Discharge thermo
30
Plate fin coil
Propeller fan % 2
0.060+0.060
100(3,530)
Reverse cycle
950(37-3/8)
330+30(13+1-3/16)
1,350(53-1/8)
99(218)
R410A
4.5(9.9)
0.87(FV50S)
9.52(3/8)
15.88(5/8)
Flared
Flared
Max. 30m
Max. 50m
Heating
12.62
PUHZ-P140VHA2.UK
PUHZ-P140VHA2
PUHZ-P140VHA3.UK
PUHZ-P140VHA3R1.UK
PUHZ-P140VHA3R2.UK
Cooling
22.48
1.UK
29.5
3.9
52
56
Heating
21.31
7
Service Ref.
PUHZ-P100YHA.UK
Mode
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) % No.
Fan motor output
OUTDOOR UNIT
Airflow
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
REFRIGERANT PIPING
Running current
*
/min(CFM
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
mm(in.)
mm(in.)
A
A
kW
W
kW
dB
dB
L
Cooling
4.78
)
3phase, 50Hz, 400V
13
Munsell 3Y 7.8/1.1
Linear Expansion Valve
Hermetic
TNB220FLCMT
2.9
Inverter
HP switch
Discharge thermo
—
Plate fin coil
Propeller fan % 1
0.060
60(2120)
Reverse cycle
50
54
950(37-3/8)
330+30(13+1-3/16)
943(37-1/8)
77(170)
R410A
3.0(6.6)
0.87(FV50S)
9.52(3/8)
15.88(5/8)
Flared
Flared
Max. 30m
Max. 50m
Heating
5.05
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Running current
Max. current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Crankcase heater
Heat exchanger
Fan Fan(drive) % No.
Fan motor output
Airflow
OUTDOOR UNIT
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
REFRIGERANT PIPING
*
/min(CFM
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
mm(in.)
mm(in.)
A
A
kW
W
kW
dB
dB
PUHZ-P125YHA.UK
Cooling
6.18
)
L
13
3.4
51
55
Heating
3phase, 50Hz, 400V
6.09
Munsell 3Y 7.8/1.1
Linear Expansion Valve
Hermetic
TNB306FPNM
Inverter
HP switch
Discharge thermo
30
Plate fin coil
Propeller fan % 2
0.060+0.060
100(3,530)
Reverse cycle
950(37-3/8)
330+30(13+1-3/16)
1,350(53-1/8)
101(223)
R410A
4.5(9.9)
0.87(FV50S)
9.52(3/8)
15.88(5/8)
Flared
Flared
Max. 30m
Max. 50m
PUHZ-P140YHA.UK
Cooling
7.92
13
3.9
52
56
Heating
7.58
8
6 DATA
6-1. REFILLING REFRIGERANT CHARGE (R410A : kg)
Service Ref.
PUHZ-P100VHA2.UK
PUHZ-P100VHA3.UK
PUHZ-P100VHA3R1.UK
PUHZ-P100VHA3R2.UK
PUHZ-P100YHA.UK
PUHZ-P125VHA2.UK
PUHZ-P125VHA2
PUHZ-P125VHA3.UK
PUHZ-P125VHA3R1.UK
PUHZ-P125VHA3R2.UK
PUHZ-P125YHA.UK
PUHZ-P140VHA2.UK
PUHZ-P140VHA2
PUHZ-P140VHA3.UK
PUHZ-P140VHA3R1.UK
PUHZ-P140VHA3R2.UK
PUHZ-P140YHA.UK
1.UK
1.UK
10m
2.9
4.3
4.3
Piping length (one way)
20m
3.0
4.4
4.4
30m
3.6
4.5
4.5
40m
4.2
5.1
5.1
Initial
50m
4.8
5.7
5.7
Longer pipe than 20 or 30m, additional
charge is required.
charged
3.0
4.5
4.5
6-2. COMPRESSOR TECHNICAL DATA
PUHZ-P100VHA2.UK
PUHZ-P100VHA3.UK
Service Ref.
Compressor model
Winding
Resistance
( )
Service Ref.
Compressor model
Winding
Resistance
( )
PUHZ-P100VHA3R1.UK
PUHZ-P100VHA3R2.UK
TNB220FLHMT
U-V
U-W
W-V
PUHZ-P100YHA.UK
TNB220FLCMT
U-V
U-W
W-V
0.88
0.88
0.88
1.41
1.41
1.41
(at 20˚C)
PUHZ-P125,140VHA2.UK
PUHZ-P125,140VHA2
PUHZ-P125,140VHA3.UK
PUHZ-P125,140VHA3R1.UK
PUHZ-P125,140VHA3R2.UK
TNB306FPGM
0.53
0.53
0.53
PUHZ-P125YHA.UK
PUHZ-P140YHA.UK
TNB306FPNM
1.02
1.02
1.02
1.UK
9
6-3. NOISE CRITERION CURVES
MICROPHONE
1.5m
1m
UNIT
GROUND
PUHZ-P100VHA2.UK
PUHZ-P100VHA3.UK
PUHZ-P100VHA3R1.UK
PUHZ-P100VHA3R2.UK
PUHZ-P100YHA.UK
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
NOISE
10
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
MODE
COOLING
HEATING
SPL(dB)
50
54
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
PUHZ-P125VHA2.UK
PUHZ-P125VHA21.UK
PUHZ-P125VHA3.UK
PUHZ-P125VHA3R1.UK
PUHZ-P125VHA3R2.UK
PUHZ-P125YHA.UK
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
NOISE
10
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
MODE
COOLING
HEATING
SPL(dB)
51
55
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
PUHZ-P140VHA2.UK
PUHZ-P140VHA21.UK
PUHZ-P140VHA3.UK
PUHZ-P140VHA3R1.UK
PUHZ-P140VHA3R2.UK
PUHZ-P140YHA.UK
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
NOISE
10
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
MODE
COOLING
HEATING
SPL(dB)
52
56
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
10
6-4. STANDARD OPERATION DATA
Representative matching
Mode
Capacity
To ta lElectrical circuitRefrigerant circuitIndoor side
Input
Indoor unit
Phase , Hz
Volts
Input
Amperes
Outdoor unit
Phase , Hz
Volts
Current
Discharge pressure
Suction pressure
Discharge temperature
Condensing temperature
Suction temperature
Ref. pipe length
Intake air temperature
Discharge air temperature
Intake air temperature
side
Outdoor
SHF
D.B.
W.B.
D.B.
D.B.
W.B.
W
kW
V
kW
A
V
A
MPa
(.f/%)
MPa
(.f/%)
°C
°C
°C
m
°C
°C
°C
°C
°C
PLA-RP100BA PLA-RP125BA PLA-RP140BA(2)
Cooling
9,400
3.12
PLA-RP100BA PLA-RP125BA PLA-RP140BA(2)
0.14
0.94
PUHZ-P100VHA2
PUHZ-P100VHA3 /
PUHZ-P100YHA
230 / 400
12.26 / 4.78
2.90
(29.6)
0.92
(9.4)
72.7
48.6
10.1
5
27
19
14.8
35
24
0.74
Heating
11, 200
3.28
1 , 50
230
0.13
0.87
1/3 , 50
12.62 / 5.05
2.57
(26.2)
0.62
(6.3)
75.5
41.4
0.1
5
20
15
43.4
7
6
—
Cooling
12,300
4.09
0.15
1.00
PUHZ-P125VHA2
PUHZ-P125VHA3 /
PUHZ-P125YHA
230 / 400
17.37 / 6.18
2.68
(27.3)
0.86
(8.8)
67.8
45.5
6.8
5
27
19
13.6
35
24
0.71
1 , 50
230
1 /3, 50
16.74 / 6.09
Heating
14,000
4.11
0.14
0.94
2.56
(26.1)
0.68
(6.9)
64.5
43.4
1.3
5
20
15
44.2
7
6
—
Cooling
13,600
5.21
1 , 50
0.16
1.07
PUHZ-P140VHA2
PUHZ-P140VHA3 /
PUHZ-P140YHA
1 /3, 50
230 / 400
22.48 / 7.92
2.79
(28.5)
0.79
(8.1)
72.7
47.0
4.4
5
27
19
12.9
35
24
0.71
Heating
16,000
4.98
230
0.15
1.00
21.31 / 7.58
2.75
(28.1)
0.64
(6.5)
70.8
47.2
1.0
5
20
15
48.0
7
6
—
BF
0.21
—
0.18
—
The unit of pressure has been changed to MPa based on international SI system.
The conversion factor is : 1 (MPa) = 10.2 (kgf/cm²)
11
0.14
—
7 OUTLINES AND DIMENSIONS
417
66 42
45
56
(19)37028
53
175600175
330
2-12%36 oval holes
(Foundation Bolt M10)
Air Discharge
Rear Air Intake
Side Air Intake
2-U Shaped notched holes
(Foundation Bolt M10)
Installation Feet
30
Over
Over
Less than
Piping and wiring connections
can be made from 4 directions:
front, right rear and below.
4 PIPING-WIRING DIRECTIONS
3 FOUNDATION BOLTS2 SERVICE SPACE
1 FREE SPACE (Around the unit)
Piping Knockout Hole Details
Example of Notes
···Refrigerant GAS pipe connection (FLARE)W15.88(5/8 inch)
···Refrigerant LIQUID pipe connection (FLARE)W 9.52(3/8 inch)
+1 ···Indication of STOP VALVE connection location.
The diagram below shows a
basic example.
Explanation of particular details is
given in the installation manuals etc.
Over10
500
500
Over100
Dimensions of space needed
for service access are
shown in the below diagram.
Service space
30
Please secure the unit firmly
with 4 foundation (M10) bolts.
(Bolts and washers must be
purchased locally.)
<Foundation bolt height>
Handle for moving
Side Air Intake
Front piping cover
Rear piping cover
14522030 145
81 219
145
71
71
Drain hole
(5-W33)
Bottom piping hole
(Knockout)
Air Intake
Rear Air Intake
Handle for moving
Handle for moving
23
943
473
950
322
+1 447
+1 443
670
Terminal Connections
Left···Power supply wiring
Right···Indoor/Outdoor wiring
Earth terminal
Service panel
Handle for moving
Handle for moving
1
2
19 55
23 27 92
92
40
75
73 63
Right piping hole
(Knockout)
Right trunking hole
(Knockout)
Power supply wiring hole
(2-W27Knockout)
W
92
27 55
732363
40
92
65
45
Front piping hole
(Knockout)
Front trunking hole
(Knockout)
Power supply wiring hole
(2-W27Knockout)
W
92
4045
65
92
27 55
23 73
63
Rear piping hole
(Knockout)
Rear trunking hole
(Knockout)
Power supply wiring hole
(2-W27Knockout)
W
92
FOUNDATION
Over 1
0mm
Over 1
0mm
Ove
r 5
00mm
Ove
r 1
00mm
FREE
OUTDOOR UNIT
PUHZ-P100VHA2.UK
PUHZ-P100VHA3.UK
Unit : mm(inch)
12
PUHZ-P125VHA2.UK
PUHZ-P140VHA2.UK
PUHZ-P125VHA2
PUHZ-P140VHA2
1.UK
1.UK
PUHZ-P125VHA3.UK
PUHZ-P140VHA3.UK
(19)28 370
2-U Shaped notched holes
(Foundation Bolt M10)
417
Unit : mm(inch)
1076
53 56
45
42
66
2-12 x 36 Oval holes
(Foundation Bolt M10)
Terminal connection
Left···Power supply wiring
Right···Indoor/Outdoor wiring
Service panel
Handle for moving
+1 447
+1 443
2
1
Front piping cover
Rear piping cover
71
71
Bottom piping hole
(Knockout)
Drain hole
(5-W33)
Rear Air Intake
600175 175
Installation Feet
330
Air Discharge
30
Side Air Intake
Piping and wiring connections
can be made from 4 directions:
front, right, rear and below.
4 PIPING-WIRING DIRECTIONS
FOUNDATION
Please secure the unit firmly
with 4 foundation (M10) bolts.
(Bolts and washers must be
purchased locally.)
3 FOUNDATION BOLTS
2 SERVICE SPACE
Dimensions of space needed
for service access are
shown in the below diagram.
<Foundation bolt height>
150
Over
FREE
30
Less than
500
Over
10
Over
Over 150mm
500
Over
Service space
Ove
r 10mm
950
Earth terminal
322
Handle for moving
Side Air Intake
Rear Air Intake
1350
Handle for moving
Handle for moving
Handle for moving
371 635
Air intake
23
27Knockout)
W
Power supply wiring hole
(2-
Rear trunking hole
(Knockout)
45 40
Right trunking hole
(Knockout)
27Knockout)
W
Power supply wiring hole
(2-
75 40
Right piping hole
(Knockout)
4540
27Knockout)
W
Power supply wiring hole
(2-
81 219
92
W
92
W
27 92
73 63
92
W
14514522030 145
Rear piping hole
(Knockout)
92
65
27 55
23 73 63
92
19 55
73 63
23
23
27 55
65
92
r 10mm
1 FREE SPACE (Around the unit)
The diagram below shows a
basic example.
Explanation of particular details is
given in the installation manuals etc.
Ove
000mm
Over 1
Example of Notes
+1 ···Indication of STOP VALVE connection location.
···Refrigerant GAS pipe connection (FLARE)W15.88(5/8 inch)
···Refrigerant LIQUID pipe connection (FLARE)W 9.52(3/8 inch)
13
Piping Knockout Hole Details
Front trunking hole
(Knockout)
Front piping hole
(Knockout)
417
66 42
45
56
(19)37028
53
175600175
330
2-12%36 oval holes
(Foundation Bolt M10)
Air Discharge
Rear Air Intake
Side Air Intake
2-U Shaped notched holes
(Foundation Bolt M10)
Installation Feet
30
Over
Over
Less than
Piping and wiring connections
can be made from 4 directions:
front, right rear and below.
4 PIPING-WIRING DIRECTIONS
3 FOUNDATION BOLTS2 SERVICE SPACE
1 FREE SPACE (Around the unit)
Piping Knockout Hole Details
Example of Notes
···Refrigerant GAS pipe connection (FLARE)W15.88(5/8 inch)
···Refrigerant LIQUID pipe connection (FLARE)W 9.52(3/8 inch)
+1 ···Indication of STOP VALVE connection location.
The diagram below shows a
basic example.
Explanation of particular details is
given in the installation manuals etc.
Over10
500
500
Over100
Dimensions of space needed
for service access are
shown in the below diagram.
Service space
30
Please secure the unit firmly
with 4 foundation (M10) bolts.
(Bolts and washers must be
purchased locally.)
<Foundation bolt height>
Handle for moving
Side Air Intake
Front piping cover
Rear piping cover
14522030 145
81 219
145
71
71
Drain hole
(5-W33)
Bottom piping hole
(Knockout)
Air Intake
Rear Air Intake
Handle for moving
Handle for moving
23
943
473
950
322
+1 447
+1 443
670
Terminal Connections
Left···Power supply wiring
Right···Indoor/Outdoor wiring
Earth terminal
Service panel
Handle for moving
Handle for moving
1
2
19 55
23 27 92
92
40
75
73 63
Right piping hole
(Knockout)
Right trunking hole
(Knockout)
Power supply wiring hole
(2-W27Knockout)
W
92
27 55
73
23
63
40
92
65
45
Front piping hole
(Knockout)
Front trunking hole
(Knockout)
Power supply wiring hole
(2-W27Knockout)
W
92
4045
65
92
27 55
23 73 63
Rear piping hole
(Knockout)
Rear trunking hole
(Knockout)
Power supply wiring hole
(2-W27Knockout)
W
92
FOUNDATION
over 100mm
over 500mm
over 10mm
FREE
over 10mm
OUTDOOR UNIT
PUHZ-P100VHA3R1.UK
Unit : mm (inch)
14
Less than
Over
Over
Over
Over
Handle for moving
Side Air Intake
Front piping cover
Rear piping cover
Air intake
Rear Air Intake
Handle for moving
Handle for moving
Terminal connection
Left···Power supply wiring
Right···Indoor/Outdoor wiring
Earth terminal
Service panel
Handle for moving
1
2
The diagram below shows a
basic example.
Explanation of particular details is
given in the installation manuals etc.
Dimensions of space needed
for service access are
shown in the below diagram.
<Foundation bolt height>
Please secure the unit firmly
with 4 foundation (M10) bolts.
(Bolts and washers must be
purchased locally.)
Air Discharge
Rear Air Intake
Side Air Intake
···Refrigerant GAS pipe connection (FLARE)W15.88(5/8 inch)
···Refrigerant LIQUID pipe connection (FLARE)W 9.52(3/8 inch)
+1 ···Indication of STOP VALVE connection location.
Example of Notes
Piping Knockout Hole Details
1 FREE SPACE (Around the unit)
2 SERVICE SPACE
3 FOUNDATION BOLTS
4 PIPING-WIRING DIRECTIONS
Piping and wiring connections
can be made from 4 directions:
front, right, rear and below.
30
FOUNDATION
150
500
500
10
Service space
600175 175
330
417
42
66
53 56
45
(19)28 370
2-U Shaped notched holes
(Foundation Bolt M10)
2-12 x 36 Oval holes
(Foundation Bolt M10)
Installation Feet
30
45 40
65
92
27 55
23 73 63
Rear piping hole
(Knockout)
Rear trunking hole
(Knockout)
Power supply wiring hole
(2-
W
27Knockout)
W
92
19 55
92
75 40
73 63
23
27 92
Right piping hole
(Knockout)
Right trunking hole
(Knockout)
Power supply wiring hole
(2-
W
27Knockout)
W
92
92
65
4540
27 55
23
73
63
Front piping hole
(Knockout)
Front trunking hole
(Knockout)
Power supply wiring hole
(2-
W
27Knockout)
W
92
14514522030 145
81 219
71
71
Bottom piping hole
(Knockout)
Drain hole
(5-W33)
1350
23
950
1076
+1 447
+1 443
371 635
322
Handle for moving
Ove
r 10mm
Over 10mm
Ove
r 150mm
Over 1000mm
FREE
PUHZ-P125VHA3R1.UK
PUHZ-P140VHA3R1.UK
Unit : mm (inch)
15
PUHZ-P100VHA3R2.UK
Unit : mm (inch)
(19)370
2-U Shaped notched holes
(Foundation Bolt M10)
175600175
Rear Air Intake
Installation Feet
Side Air Intake
417
330
670
+1 447
28
54
53
41
56 41
2-12%36 oval holes
(Foundation Bolt M10)
Air Discharge
30
Left···Power supply wiring
Right···Indoor/Outdoor wiring
Terminal Connections
Service panel
950
Earth terminal
322
Handle for moving
Handle for moving
943
+1 431
2
1
473
Rear piping cover
Front piping cover
71
71
23
Bottom piping hole
(Knockout)
81 219
Drain hole
(5-W33)
145
14522030 145
Piping and wiring connections
can be made from 4 directions:
front, right rear and below.
4 PIPING-WIRING DIRECTIONS
FOUNDATION
Please secure the unit firmly
with 4 foundation (M10) bolts.
(Bolts and washers must be
3 FOUNDATION BOLTS2 SERVICE SPACE
Dimensions of space needed
for service access are
shown in the below diagram.
<Foundation bolt height>
purchased locally.)
Over100
30
Less than
500
Over
Over
Over10
Service space
over 10mm
500
FREE
over 100mm
Rear Air Intake
Side Air Intake
Handle for moving
Handle for moving
Handle for moving
Air Intake
Power supply wiring hole
(2-W27Knockout)
Rear trunking hole
(Knockout)
4045
Right trunking hole
(Knockout)
Power supply wiring hole
(2-W27Knockout)
40
75
Right piping hole
(Knockout)
45
40
Power supply wiring hole
(2-W27Knockout)
92
W
73 63
92
W
63
73
92
W
Rear piping hole
(Knockout)
92
65
27 55
23
92
19 55
73 63
23 27 92
23
27 55
65
92
1 FREE SPACE (Around the unit)
The diagram below shows a
basic example.
Explanation of particular details is
given in the installation manuals etc.
over 10mm
over 500mm
Example of Notes
+1 ···Indication of STOP VALVE connection location.
···Refrigerant GAS pipe connection (FLARE)W15.88(5/8 inch)
···Refrigerant LIQUID pipe connection (FLARE)W 9.52(3/8 inch)
16
Piping Knockout Hole Details
Front trunking hole
(Knockout)
Front piping hole
(Knockout)
PUHZ-P125VHA3R2.UK
PUHZ-P140VHA3R2.UK
Unit : mm (inch)
417
(19)
2-U Shaped notched holes
(Foundation Bolt M10)
600175 175
Rear Air Intake
Installation Feet
330
28 370
53 54
41
41
56
2-12 x 36 Oval holes
Air Discharge
30
Side Air Intake
Piping and wiring connections
can be made from 4 directions:
front, right, rear and below.
4 PIPING-WIRING DIRECTIONS
Terminal connection
(Foundation Bolt M10)
950
Earth terminal
322
Handle for moving
Side Air Intake
Rear Air Intake
Left···Power supply wiring
Right···Indoor/Outdoor wiring
Service panel
Handle for moving
Handle for moving
1076
635
1350
Handle for moving
Front piping cover
+1 447
+1 431
2
1
371
Rear piping cover
71
23
Bottom piping hole
(Knockout)
71
81 219
Drain hole
(5-W33)
14514522030 145
Please secure the unit firmly
with 4 foundation (M10) bolts.
(Bolts and washers must be
purchased locally.)
3 FOUNDATION BOLTS
2 SERVICE SPACE
Dimensions of space needed
for service access are
shown in the below diagram.
1 FREE SPACE (Around the unit)
The diagram below shows a
basic example.
Explanation of particular details is
<Foundation bolt height>
150
Over
Over 150mm
FREE
0mm
Ove
r 1
given in the installation manuals etc.
500
Over
FOUNDATION
Over
10
30
Less than
500
Over
Service space
Over 10mm
Over 1000mm
Handle for moving
Example of Notes
+1 ···Indication of STOP VALVE connection location.
···Refrigerant GAS pipe connection (FLARE)W15.88(5/8 inch)
···Refrigerant LIQUID pipe connection (FLARE)W 9.52(3/8 inch)
27Knockout)
W
Power supply wiring hole
(2-
Rear trunking hole
(Knockout)
92
W
45 40
Right trunking hole
(Knockout)
27Knockout)
W
Power supply wiring hole
(2-
Air intake
Right piping hole
(Knockout)
27Knockout)
W
Power supply wiring hole
(2-
Piping Knockout Hole Details
92
W
75 40
63
4540
92
W
Front trunking hole
(Knockout)
27 92
73
Rear piping hole
(Knockout)
92
65
27 55
23 73 63
92
19 55
73 63
23
23
27 55
65
92
Front piping hole
(Knockout)
17
PUHZ-P100YHA.UK
Unit : mm (inch)
(19)370
2-U Shaped notched holes
(Foundation Bolt M10)
175600175
Rear Air Intake
Installation Feet
Side Air Intake
417
330
589
+1 447
28
54
53
41
56 41
2-12%36 oval holes
(Foundation Bolt M10)
Air Discharge
30
Left···Power supply wiring
Right···Indoor/Outdoor wiring
Terminal Connections
Service panel
950
Earth terminal
322
Handle for moving
Handle for moving
943
+1 431
2
1
473
Rear piping cover
Front piping cover
71
71
23
Bottom piping hole
(Knockout)
81 219
Drain hole
(5-W33)
145
14522030 145
Piping and wiring connections
can be made from 4 directions:
front, right rear and below.
4 PIPING-WIRING DIRECTIONS
FOUNDATION
Please secure the unit firmly
with 4 foundation (M10) bolts.
(Bolts and washers must be
3 FOUNDATION BOLTS2 SERVICE SPACE
Dimensions of space needed
for service access are
shown in the below diagram.
<Foundation bolt height>
purchased locally.)
Over100
30
Less than
500
Over
Over
Over10
Service space
over 10mm
500
FREE
over 100mm
Rear Air Intake
Side Air Intake
Handle for moving
Handle for moving
Handle for moving
Air Intake
Power supply wiring hole
(2-W27Knockout)
Rear trunking hole
(Knockout)
4045
Right trunking hole
(Knockout)
Power supply wiring hole
(2-W27Knockout)
4075
Right piping hole
(Knockout)
45
40
Power supply wiring hole
(2-W27Knockout)
92
W
92
W
7323 63
92
W
Rear piping hole
(Knockout)
92
65
27 55
23 73 63
92
19 55
73 63
23 27 92
27 55
65
92
1 FREE SPACE (Around the unit)
The diagram below shows a
basic example.
Explanation of particular details is
given in the installation manuals etc.
over 10mm
over 500mm
Example of Notes
···Refrigerant GAS pipe connection (FLARE)W15.88(5/8 inch)
···Refrigerant LIQUID pipe connection (FLARE)W 9.52(3/8 inch)
+1 ···Indication of STOP VALVE connection location.
18
Piping Knockout Hole Details
Front trunking hole
(Knockout)
Front piping hole
(Knockout)
PUHZ-P125YHA.UK
PUHZ-P140YHA.UK
Unit : mm (inch)
417
(19)
2-U Shaped notched holes
(Foundation Bolt M10)
600175 175
Rear Air Intake
Installation Feet
330
28 370
53 54
41
41
56
2-12 x 36 Oval holes
Air Discharge
30
Side Air Intake
Piping and wiring connections
can be made from 4 directions:
front, right, rear and below.
4 PIPING-WIRING DIRECTIONS
Terminal connection
(Foundation Bolt M10)
950
Earth terminal
322
Handle for moving
Side Air Intake
Rear Air Intake
Left···Power supply wiring
Right···Indoor/Outdoor wiring
Service panel
Handle for moving
Handle for moving
994
635
1350
Handle for moving
Front piping cover
+1 447
+1 431
2
1
371
Rear piping cover
71
23
Bottom piping hole
(Knockout)
71
81 219
Drain hole
(5-W33)
14514522030 145
Please secure the unit firmly
with 4 foundation (M10) bolts.
(Bolts and washers must be
purchased locally.)
3 FOUNDATION BOLTS
2 SERVICE SPACE
Dimensions of space needed
for service access are
shown in the below diagram.
1 FREE SPACE (Around the unit)
The diagram below shows a
basic example.
Explanation of particular details is
<Foundation bolt height>
150
Over
Over 150mm
FREE
0mm
Ove
r 1
given in the installation manuals etc.
500
Over
FOUNDATION
Over
10
30
Less than
500
Over
Service space
Over 10mm
Over 1000mm
Handle for moving
Example of Notes
+1 ···Indication of STOP VALVE connection location.
···Refrigerant GAS pipe connection (FLARE)W15.88(5/8 inch)
···Refrigerant LIQUID pipe connection (FLARE)W 9.52(3/8 inch)
27Knockout)
W
Power supply wiring hole
(2-
Rear trunking hole
(Knockout)
92
W
45 40
Right trunking hole
(Knockout)
27Knockout)
W
Power supply wiring hole
(2-
Air intake
Right piping hole
(Knockout)
27Knockout)
W
Power supply wiring hole
(2-
Piping Knockout Hole Details
92
W
75 40
63
4540
92
W
Front trunking hole
(Knockout)
27 92
73
Rear piping hole
(Knockout)
92
65
27 55
23 73 63
92
19 55
73 63
23
23
27 55
65
92
Front piping hole
(Knockout)
19
8 WIRING DIAGRAM
PUHZ-P100VHA2.UK PUHZ-P125VHA2.UK PUHZ-P140VHA2.UK
PUHZ-P125VHA2
PUHZ-P100VHA3.UK PUHZ-P125VHA3.UK PUHZ-P140VHA3.UK
PUHZ-P100VHA3R1.UK PUHZ-P125VHA3R1.UK PUHZ-P140VHA3R1.UK
SYMBOL NAME SYMBOL NAME SYMBOL NAME
TB1
MC
MF1,MF2
21S4
SV Solenoid Valve (Bypass Valve)
CH Crankcase Heater
63H
TH3
TH4
TH6
TH7
TH8
LEV-A
DCL
ACTM
CB
Terminal Block<Power Supply, Indoor/Outdoor >
Motor Compressor
Fan Motors
Solenoid Valve (Four-Way Valve)
High Pressure Switch
Thermistor<Outdoor Pipe>
Thermistor<Discharge>
Thermistor<Outdoor 2-Phase Pipe>
Thermistor<Outdoor>
Thermistor<Heatsink>
Electronic Expansion Valve
Reactor
Active Filter Module
Main Smoothing Capacitor
1.UK PUHZ-P140VHA21.UK
P. B.
TABU/V/W
TAB S/T
TABP1/P2/P
TABN1/N2/N
DS2,3
IPM
N.F.
C.B.
F1~F4
SW1
SW4
SW5
SW6
SW7
Power Circuit Board
Connection Terminal<U/V/W-Phase>
Connection Terminal<L/N- Phase>
Connection Terminal<DC Voltage>
Connection Terminal<DC Voltage>
Diode Bridge
Power Module
Noise Filter Circuit Board
Controller Circuit Board
Fuse<T6.3AL250V>
Switch<Forced Defrost, Defect History Record
Reset, Refrigerant Address>
Switch<Test Operation>
Switch<Function Switch>
Switch<Model Select>
Switch<Function Setup>
Switch
SW8
SW9
Switch
SWP
Switch<Pump Down>
CN31
Connector<Emergency Operation>
LED1,LED2
Light Emitting Diodes
<Operation Inspection Indicators>
CNM
Connector<A-Control Service Inspection Kit>
Connector<Connected to Optional M-NET Adapter Board>
CNMNT
CNVMNT
Connector<Connected to Optional M-NET Adapter Board>
CNDM
Connector<Connected for Option (Contact Input)>
X51,X52,X54,X55
Relay
+ 2
MF1
MS
3~
MF2
MS
3~
C.B.
1
1
CNS
WHT)
(
31
TH8
CB
63H
TH7 TH6 TH3 TH4
TRANS
CNAC
WHT)
(
12
34
t°t° t°t°
14
122
TH7/6
TH3
(WHT)
(WHT)
(RED)
(WHT)
17
F3
F4
TH4
CN2
1
1
63H
(YLW)
7
7
CNF1
(WHT)
7
CNF2
WHT)
(
3
2
1
CNDC
PNK)
(
F2
F1
LED2
3
21S4
(GRN)
LEV-A
M
16
LEV-A
(WHT)
LED1
1
CN4
(WHT)
12
2
X52
X55
31
31
21S4
SV2
(BLU)
SV
+ 2
3
3
1
CNVMNT
(WHT)
CNM
(WHT)
X54
31
SV1/CH
(GRY)
CH
+
2
1
CNMNT
(WHT)
CN52C
(RED)
1
31
5
5
SW5SW8SW4 SWP
14
2
2
X51
SS
(WHT)
When M-NET adaptor is connected
5
+ 1+ 1
SW7
SW6SW1
SW9
CN31
1
3
CNDM
(WHT)
1
CN51
(WHT)
5
ABS
5
SW1
CN5
(WHT)
1
LED2
LED3
LED4
M-NET SUBSTRATE
2
1
CN2M
(WHT)
LED5
LED1
TB7
M-NET
SW11
SW12
CND
(WHT)
31
3
N.F.
LO
NO
1
52C
P. B .
4
1
CNAF
(WHT)
6
7
1
CN2
IPM
(WHT)
CN3
(WHT)
CN5
(RED)
CN4
(WHT)
TABN
TABP
+
TAB P2
TABURED
UVW
7
1
2
t°
2
1
2
2
1
2
+
MS
3~
TAB VWHT
BLK
MC
CNDC
2
(PNK)
1
3
–
TAB N1
+
TAB W
TAB T
DS3
–~
+
~
TABS
DS2
–
~
+
~
TABP1
U
TAB N2
3
1
(RED)
CNAC2
3
1
(WHT)
CNAC1
LI
U
NI
U
2
CN52C
E2
1
2
CN5
EI
2
(BLK)
2
(RED)
DCL
+
—
ACTM
L1 L2
4
16
P
N1
N2
Io
POWER SUPPLY
~/N 230V 50Hz
20
INDOOR
UNIT
CY1
CY2
+ 1 MODEL SELECT
S3S2S1NL
TB1
The black square ( ) indicates a switch position.
MODEL
SW5-6
+
3
ON
100V
OFF
123456
ON
125V
OFF
123456
ON
140V
OFF
123456
+ 2 P125, P140 only
+ 3 SW5-1 to 5: Function Switch
ON
OFF
ON
OFF
ON
OFF
SW6
123456
123456
123456
78
78
78
PUHZ-P100VHA3R2.UK PUHZ-P125VHA3R2.UK PUHZ-P140VHA3R2.UK
21
The black square ( ) indicates a switch position.
PUHZ-P100YHA.UK PUHZ-P125YHA.UK PUHZ-P140YHA.UK
The black square ( ) indicates a switch position.
22
9 WIRING SPECIFICATIONS
9-1. FIELD ELECTRICAL WIRING (power wiring specifications)
Outdoor unit model
Outdoor unit power supply
Outdoor unit input capacity
Main switch (Breaker)
)
2
Outdoor unit power supply
.%
Indoor unit-Outdoor unit *2
ing
Indoor unit-Outdoor unit earth *2
Wir
Wire No
Remote controller-Indoor unit *3
size (mm
Outdoor unit L-N (single)
Outdoor unit L1-N, L2-N, L3-N (3 phase)
Indoor unit-Outdoor unit S1-S2 *4
Indoor unit-Outdoor unit S2-S3 *4
Circuit rating
Remote controller-Indoor unit *4
*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use earth leakage breaker(NV).
*2. Refer to 9-3.
*3. The 10 m wire is attached in the remote controller accessory.
*4. The figures are NOT always necessarily the voltage to ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.
P100, 125V P140V
~/N (single), 50 Hz, ~/N (single), 50 Hz,
*1
*4
230 V 230 V
32 A 40 A
3 % Min. 4 3 % Min. 6
3 % 1.5 (Polar) 3 % 1.5 (Polar)
1 % Min. 1.5 1 % Min. 1.5
2 % 0.3 (Non-polar) 2 % 0.3 (Non-polar)
AC 230 V AC 230 V
AC 230 V AC 230 V
DC 24 V DC 24 V
DC 12 V DC 12 V
P100,125,140Y
3N~ (3ph,4-wires),
50Hz, 400 V
16 A
5 % Min. 1.5
3 % 1.5 (Polar)
1 % Min. 1.5
2 % 0.3 (Non-polar)
AC 230 V
AC 230 V
DC 24 V
DC 12 V
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 code.
2. Power supply cords and Indoor/Outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord. (Design 60245 IEC 57)
3. Install an earth longer than other cables.
Power supply
Isolator
S1
3 poles isolator
S1
A-Control
Outdoor Unit
S2
S3
S2
S3
A-Control
Indoor Unit
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.
1:1 system Synchronized twin and triple system Electrical wiring
• Synchronized twin
Unit
power
supply
Earth leakage breaker
wiring circuit breaker or
isolating switch
Outdoor
unit
L
N
Indoor/outdoor
unit connection
cable
S1
S2
S3
Indoor
unit
S1
S2
S3
1
Remote
controller
2
Unit
power
supply
Earth leakage breaker
wiring circuit breaker or
isolating switch
Outdoor
unit
L
N
Indoor/outdoor
unit connection
cable
S1
S2
S3
Indoor
unit
S1
S2
S3
1
2
• Synchronized triple
Indoor
unit
S1
S2
S3
1
2
Remote
controller
Unit
power
supply
Earth leakage breaker
wiring circuit breaker or
isolating switch
Outdoor
unit
L
N
Indoor/outdoor
connection cable
S1
S2
S3
Remote
controller
Indoor
unit
1
2
S1
S2
S3
Indoor
unit
1
2
S1
S2
S3
Indoor
unit
1
2
S1
S2
S3
23
9-2. SEPARATE INDOOR UNIT/OUTDOOR UNIT POWER SUPPLIES
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
<For models without heater>
1:1 System
* The optional indoor power supply terminal kit is required.
L
N
S1
S2
S3
L
N
S1
S2
S3
1
2
* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Simultaneous twin/triple system
<For models without heater>
* The optional indoor power supply terminal kits are required.
L
N
S1
S2
S3
* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
If the indoor and outdoor units have separate power supplies, refer to the table below.
If the optional indoor power supply terminal kit is used, change the indoor unit
electrical box wiring referring to the figure in the right and the DIP switch settings of
the outdoor unit control board.
Indoor unit specifications
Indoor power supply terminal kit (option)
Indoor unit electrical box connector connection change
Label affixed near each wiring diagram
for the indoor and outdoor units
Outdoor unit DIP switch settings (when
using separate indoor unit/outdoor unit
power supplies only)
Required
Required
Required
ON
OFF 1 2
Set the SW8-3 to ON.
3
(SW8)
L
L
N
N
S1
S1
S2
S3
1
2
S2
S3
1
2
Electric heater
(For models with
heater)
L
N
S1
S2
S3
Indoor unit power supplied from outdoor unit
(when shipped from factory)
L
L
N
N
S1
S1
S2
S2
S3
S3
1
1
2
2
Connectors (connections when shipped
from the factory are for indoor unit power
supplied from outdoor unit)
BLUE
BLUE
YELLOW
YELLOW
CND or
CN01
control board
Indoor unit
* There are three types of labels (labels A, B and C). Affix the appropriate labels to
the units according to the wiring method.
Outdoor unit power supply
Earth leakage breaker
Wiring circuit breaker or isolating switch
Outdoor unit
Indoor unit/outdoor unit connecting cords
Remote controller
Indoor unit
Option
Indoor unit power supply
Outdoor unit power supply
Earth leakage breaker
Wiring circuit breaker or isolating switch
Outdoor unit
Indoor unit/outdoor unit connecting cords
Remote controller
Indoor unit
Option
Indoor unit power supply
Indoor unit earth
If the indoor and
outdoor units have
separate power
supplies, change the
connections of the
connectors as shown
in the following
figure.
Electric heater
(For models with
heater)
L
N
S1
S2
S3
Separate indoor unit/outdoor unit power
supplies
YELLOW
BLUE
BLUE
YELLOW
CN01
CND or
Connectors
Indoor unit
control board
Indoor unit model
Indoor unit power supply
Indoor unit input capacity
Main switch (Breaker)
Indoor unit power supply
Indoor unit power supply earth
)
2
Indoor unit-Outdoor unit
(mm
Wiring
Indoor unit-Outdoor unit earth
Wire No. % size
Remote controller-Indoor unit
Indoor unit L-N *4
Indoor unit-Outdoor unit S1-S2 *4
Indoor unit-Outdoor unit S2-S3 *4
rating
Circuit
Remote controller-Indoor unit *4
*1
*2
*3
RP35~140
~/N (single), 50 Hz, 230 V
16 A
2 % Min. 1.5
1 % Min. 1.5
2 % Min. 0.3
–
2 % 0.3 (Non-polar)
AC 230 V
–
DC24 V
DC12 V
*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).
*2. Max. 120 m
*3. The 10 m wire is attached in the remote controller accessory. Max. 500 m
*4. The figures are NOT always necessarily the voltage to ground.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cords and indoor unit/outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord.
(Design 60245 IEC 57)
3. Install an earth longer than other cables.
24
9-3. INDOOR – OUTDOOR CONNECTING CABLE
The cable shall not be lighter than design 60245 IEC or 60227 IEC.
The cable length may vary depending on the condition of installation, humidity or materials, etc.
Cross section
of cable
Round
Wire size
2
)
(mm
2.5
Number
of wires
3
Polarity L(m) *5
Clockwise : S1-S2-S3
50
*1
Flat
2.5
3
Not applicable
(Because center wire has no cover finish)
Flat
1.5
4
From left to right : S1-Open-S2-S3
Round
2.5
*1 : In case that cable with stripe of yellow and green is available.
*2 : In case that the flat cables are connected as this picture, they can be used up to 80m.
(3C Flat cable × 2)
S1 S2 S3
*3 : In case of regular polarity connection (S1-S2-S3), wire size is 1.5mm
*4 : In case of regular polarity connection (S1-S2-S3)
*5 : Mentioned cable length is just a reference value.
It may be different depending on the condition of installation, humidity or materials, etc.
4
Clockwise : S1-S2-S3-Open
Connect S1 and S3 to the opposite angle
2
.
Not
applicable
*2
45
*3
60
*4
Wire No. % Size ($)
Outdoor power supply
Max. 45m
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
+ The Max. cable length may vary depending on the condition of installation, humidity or materials, etc.
3 % 1.5 (polar)
1 % Min. 1.5
Indoor/Outdoor separate
power supply
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
+ The optional indoor power supply terminal kit is necessary.
Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections).
Intermediate connections can lead to communication errors if water enters the cables and causes insufficient insulation to
earth or a poor electrical contact at the intermediate connection point.
Max. 50m
3 % 2.5 (polar)
1 % Min. 2.5
Wire No. % Size ($)
Max. 120m
2 % Min. 0.3
Max. 80m
3 % 2.5 (polar) and S3 separated
1 % Min. 2.5
—
25
9-4. M-NET WIRING METHOD
(Points to note)
(1) Outside the unit, transmission wires should stay away from electric wires in order to prevent electromagnetic noise from
making an influence on the signal communication. Place them at intervals of more than 5 cm. Do not put them in the same
conduit tube.
(2) Terminal block (TB7) for transmission wires should never be connected to V power supply. If it is connected, electronic
parts on M-NET P.C. board may burn out.
(3) Use 2-core × 1.25 mm² shield wire (CVVS, CPEVS) for the transmission wire. Transmission signals may not be sent or
received normally if different types of transmission wires are put together in the same multi-conductor cable. Never do this
because this may cause a malfunction.
Group
remote
controller
Power
supply
unit for
transmission
wire
A-control
remote
It would be ok if M-NET wire (non-polar, 2-cores) is arranged in addition to the wiring for A-control.
(4) Earth only one of any appliances through M-NET transmission wire (shield wire). Communication error may occur due to
the influence of electromagnetic noise.
“Ed” error will appear on the LED display of outdoor unit.
“0403” error will appear on the central-control remote controller.
Bad example (Multi spot earthing of shield wire)
Central
remote
controller
M-NET transmission wire
controller
Power
supply
appliance
Refrigerant
address 00
M-NET
address 01
M-NET type
outdoor unit
M-NET type
outdoor unit
A-control
remote
controller
Refrigerant
address 00
M-NET
address 02
M-NET type
outdoor unit
A-control
remote
controller
Refrigerant
address 00
M-NET
address 03
Good example 1 (Single spot earthing of shield wire)
Central
remote
controller
M-NET transmission wire
Good example 2 (Single spot earthing of shield wire)
Central
remote
controller
M-NET transmission wire
If there are more than 2 grounding spots on the shield wire, noise may enter into the shield wire because the earth wire
and shield wire form 1 circuit and the electric potential difference occurs due to the impedance difference among earthing
spots. In case of single spot grounding, noise does not enter into the shield wire because the earth wire and shield wire do
not form 1 circuit.
To avoid communication errors caused by noise, make sure to observe the single spot grounding method described in the
installation manual.
Power
supply
appliance
Power
supply
appliance
M-NET type
outdoor unit
M-NET type
outdoor unit
M-NET type
outdoor unit
M-NET type
outdoor unit
M-NET type
outdoor unit
M-NET type
outdoor unit
26
M-NET wiring
(1) Use 2-core × 1.25 mm² shield wire for electric wires.
(Excluding the case connecting to system controller.)
(2) Connect the wire to the M-NET terminal block. Connect one core of the trans-
mission wire (no-polarity) to A terminal and the other to B. Peel the shield wire,
twist the shield part to a string and connect it to S terminal.
(3) In the system which several outdoor units are being connected, the terminal
(A, B, S) on M-NET terminal block should be individually wired to the other
M-NET
terminal
block
ABS
Transmission
wire
Earth
wire
Shield
part
outdoor unit’s terminal, i.e. A to A, B to B and S to S. In this case, choose one of those outdoor units and drive a screw
to fix an ground wire on the plate as shown on the right figure.
9-4-1. M-NET address setting
In A-control models, M-NET address and refrigerant address should be set only for the outdoor unit. Similar to CITY MULTI
system, there is no need to set the address of outdoor unit and remote controller. To construct a central control system, the
setting of M-NET address should be conducted only upon the outdoor unit. The setting range should be 1 to 50 (the same as
that of the indoor unit in CITY MULTI system), and the address number should be consecutively set in a same group.
Address number can be set by using rotary switches
(SW11 for 1s digit and SW12 for 10s digit), which
is located on the M-NET board of outdoor unit.
(Factory setting: all addresses are set to “0”.)
<Setting example>
M-NET Address No.
SW11
Switch
setting
1s
digit
SW12
10s
digit
12
3
3
4
4
2
2
5
1
0
9
2
1
0
9
5
1
6
6
0
7
7
9
8
8
3
3
4
4
2
5
5
1
6
6
0
7
7
9
8
8
50
3
4
2
5
1
6
0
7
9
8
~
3
4
2
5
1
6
0
7
9
8
9-4-2. Refrigerant address setting
In case of multiple grouping system (multiple refrigerant circuits in one group), indoor units should be connected by remote
controller wiring (TB5) and the refrigerant address needs to be set. Leave the refrigerant addresses to “00” if the group setting is not conducted. Set the refrigerant address by using DIP SW1-3 to -6 on the outdoor controller board. [Initial setting: all
switches are OFF. (All refrigerant addresses are “00”.)]
Refrigerant
address
ON
OFF
1
ON
OFF
1
The black square (
ON
OFF
1
3
4
5
2
6
0
ON
OFF
1
3
4
5
2
6
8
ON
OFF
1
3
4
5
2
6
1
ON
OFF
1
3
4
5
2
6
9
■
) indicates a switch position.
ON
OFF
1
3
4
5
2
6
2
ON
OFF
1
3
4
5
2
6
10
ON
OFF
1
3
4
5
2
6
3
ON
OFF
1
3
4
5
2
6
11
ON
OFF
1
3
4
5
2
6
4
ON
OFF
1
3
4
5
2
6
12
ON
OFF
1
3
4
5
2
6
5
ON
OFF
1
3
4
5
2
6
13
ON
OFF
1
3
4
2
6
3
4
2
14
3
5
5
4
5
2
6
OFF
6
6
7
ON
1
3
4
5
2
6
15
9-4-3. Regulations in address settings
In case of multiple grouping system, M-NET and refrigerant address settings should be done as explained in the above section. Set the lowest number in the group for the outdoor unit whose refrigerant address is “00” as its M-NET address.
Group A Group B Group C
System
controller
Power
supply
unit for
transmission
wire
Refrigerant
address 00
M-NET
address 01
A-control
remote
controller
Refrigerant
address 00
M-NET
address 02
A-control
remote
controller
Refrigerant
address 01
M-NET
address 03
TB5
Refrigerant
address 00
M-NET
address 04
A-control
remote
controller
w Refrigerant addresses can be overlapped if they are in the different group.
Group A Group B
System
controller
Power
supply
unit for
transmission
wire
Refrigerant
address 00
M-NET
address 01
A-control
remote
controller
Refrigerant
address 01
M-NET
address 02
Refrigerant
address 00
M-NET
address 04
TB5
A-control
remote
controller
Refrigerant
address 01
M-NET
address 03
Refrigerant
address 02
M-NET
address 05
w In group B, M-NET address of the outdoor unit whose refrigerant address is “00” is not set to the minimum in the group. As
“3” is right for this situation, the setting is wrong. Taking group A as a good sample, set the minimum M-NET address in the
group for the outdoor unit whose refrigerant address is “00”.
27
10 REFRIGERANT SYSTEM DIAGRAM
Unit : mm (inch)
PUHZ-P100VHA2.UK
PUHZ-P100VHA3.UK
PUHZ-P100VHA3R1.UK
Stop valve
Refrigerant GAS pipe
15.88mm(:5/8)
Refrigerant LIQUID pipe
9.52mm(:3/8)
(#50)
Strainer
Service
port
(check)
Accumulator
Strainer
(#40)
Stop valve
(with service port)
4-way valve
Muffler
Service
port
(check)
Compressor
Refrigerant flow in cooling
Refrigerant flow in heating
High pressure
protect switch
Outdoor heat exchanger
Thermistor
(TH4)
(#100)
Strainer
Linear expansion valve
Thermistor
(TH6)
Thermistor
(TH3)
Distributor
(#100)
Strainer
PUHZ-P125VHA2.UK PUHZ-P140VHA2.UK
PUHZ-P125VHA2
.UK PUHZ-P140VHA21.UK
1
PUHZ-P125VHA3.UK PUHZ-P140VHA3.UK
PUHZ-P125VHA3R1.UK PUHZ-P140VHA3R1.UK
Bypass valve
Compressor
Strainer
(#100)
Stop valve
Refrigerant GAS pipe
15.88
mm(:
5/8)
Refrigerant LIQUID pipe
9.52
mm(:
3/8)
(#50)
Strainer
Service
port
(check)
Strainer
(#40)
4-way
valve
Accumulator
Service port
(check)
High pressure protect switch
Muffler
Thermistor
(TH4)
Strainer
(#100)
Thermistor
(TH6)
Distributor
Thermistor (TH3)
Capillary tube
(
:
4.0%:3.0%-L200)%2
Stop valve
(with service port)
Linear expansion valve
28
Unit : mm (inch)
PUHZ-P100VHA3R2.UK
PUHZ-P100YHA.UK
Stop valve
Refrigerant GAS pipe
15.88mm(:5/8)
Refrigerant LIQUID pipe
9.52mm(:3/8)
(#50)
Strainer
Service
port
(check)
Accumulator
Strainer
(#40)
Stop valve
(with service port)
4-way valve
Muffler
Service
port
(check)
Compressor
Refrigerant flow in cooling
Refrigerant flow in heating
High pressure
protect switch
Outdoor heat exchanger
Thermistor
(TH32)
(#100)
Strainer
Linear expansion valve
Thermistor
(TH6)
Thermistor
(TH3)
Distributor
(#100)
Strainer
PUHZ-P125VHA3R2.UK PUHZ-P140VHA3R2.UK
PUHZ-P125YHA.UK PUHZ-P140YHA.UK
Bypass valve
Thermistor
(TH32)
Compressor
Strainer
(#100)
Stop valve
Refrigerant GAS pipe
15.88
mm(:
5/8)
Refrigerant LIQUID pipe
9.52
mm(:
3/8)
(#50)
Strainer
Service
port
(check)
Strainer
(#40)
4-way
valve
Accumulator
Service port
(check)
High pressure protect switch
Muffler
Strainer
(#100)
Thermistor
(TH6)
Distributor
Thermistor (TH3)
Capillary tube
(
:
4.0%:3.0%-L200)%2
Stop valve
(with service port)
Linear expansion valve
29
1. Refrigerant recovery (pump down)
Perform the following procedures to recover the refrigerant when moving the indoor unit or the outdoor unit.
1 Turn on the power supply (circuit breaker).
w When power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controller. If
“CENTRALLY CONTROLLED” is displayed, the refrigerant recovering (pump down) cannot be completed normally.
2 After the liquid stop valve is closed, set the SWP switch on the control board of the outdoor unit to ON. The compressor
(outdoor unit) and ventilators (indoor and outdoor units) start operating and refrigerant recovery operation begins. LED1 and
LED2 on the control board of the outdoor unit are lit.
w Set the SWP switch (push-button type) to ON in order to perform refrigerant recovery operation only when the unit is
stopped. However, refrigerant recovery operation cannot be performed until compressor stops even if the unit is stopped.
Wait 3 minutes until compressor stops and set the SWP switch to ON again.
3 Because the unit automatically stops in about 2 to 3 minutes after the refrigerant recovering operation (LED1 is not lit and
LED2 is lit), be sure to quickly close the gas stop valve.
w In case the outdoor unit is stopped when LED1 is lit and LED2 is not lit, open the liquid stop valve completely, and then
repeat step 2 3 minutes later.
w If the refrigerant recovering operation has been completed normally (LED1 is not lit and LED2 is lit), the unit will remain
stopped until the power supply is turned off.
4 Turn off the power supply (circuit breaker.)
2. Start and finish of test run
• Operation from the indoor unit
Execute the test run using the installation manual for the indoor unit.
• Operation from the outdoor unit
By using the DIP switch SW4 on the control board of outdoor unit, test run can be started and finished, and its operation
mode (cooling/heating) can be set up.
1Set the operation mode (cooling/heating) using SW4-2.
2Turn on SW4-1 to start test run with the operation mode set by SW4-2.
3Turn off SW4-1 to finish the test run.
• There may be a faint knocking sound around the machine room after power is supplied, but this is
no problem with product because the linear expansion pipe is just moving to adjust opening pulse.
• There may be a knocking sound around the machine room for several seconds after compressor
starts operating. But this is not a problem with product because the check valve itself generates the
sound due to small pressure difference in the refrigerant circuit.
Stop Operation
Cooling Heating
<SW4>
ON
OFF
12
Note:
The operation mode cannot be changed by SW4-2 during test run. (To change test run mode, stop the unit by SW4-1,
change the operation mode and restart the test run by SW4-1.)
30
Loading...