Mitsubishi Electric Mr. Slim PUHZ-RP71VHA4 User manual

SERVICE MANUAL No.OCH451
REVISED EDITION-A
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
R410A
January 2010
Outdoor unit
[model name]
PUHZ-RP35VHA4
PUHZ-RP50VHA4
PUHZ-RP60VHA4
PUHZ-RP71VHA4
PUHZ-RP100VKA
PUHZ-RP125VKA
PUHZ-RP140VKA
PUHZ-RP100YKA
PUHZ-RP125YKA
PUHZ-RP140YKA
PUHZ-RP200YKA
PUHZ-RP250YKA
[Service Ref.]
PUHZ-RP35VHA4
PUHZ-RP50VHA4
PUHZ-RP60VHA4
PUHZ-RP71VHA4
PUHZ-RP100VKA
PUHZ-RP125VKA
PUHZ-RP140VKA
PUHZ-RP100YKA
PUHZ-RP125YKA
PUHZ-RP140YKA
PUHZ-RP200YKA
PUHZ-RP200YKAR1
PUHZ-RP250YKA
PUHZ-RP60VHA4
PUHZ-RP71VHA4
Revision:
•PUHZ-RP200YKAR1 is added in
REVISED EDITION-A.
•Some descriptions have been
modified.
PARTS CATALOG (OCB451)
CONTENTS
1 TECHNICAL CHANGE····································2
2 REFERENCE MANUAL··································2
3 SAFETY PRECAUTION··································2
4 FEATURES······················································6
5 SPECIFICATIONS···········································7
6 DATA······························································10
7 OUTLINES AND DIMENSIONS····················16
8 WIRING DIAGRAM ·······································20
9 WIRING SPECIFICATIONS···························26
10 REFRIGERANT SYSTEM DIAGRAM ··············31
11 TROUBLESHOOTING···································35
12 FUNCTION SETTING····································94
13 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ···101
14 EASY MAINTENANCE FUNCTION·············111
15 DISASSEMBLY PROCEDURE···················· 116
Note:
•This manual does not cover the
outdoor units. When serving out-
door units, please refer to the serv-
ice manual of outdoor unit and this
manual in a set.
• RoHS compliant products have <G>
mark on the spec name plate.
• Please void OCH451.

2
3-1. ALWAYS OBSERVE FOR SAFETY
Before obtaining access to terminal, all supply circuits must be disconnected.
2-1. INDOOR UNIT SERVICE MANUAL
Model name Service Ref. Service
Manual No.
PLA-RP35/50/60/71/100/125BA
PLA-RP71/125/140BA2 PLA-RP35/50/60/71/100/125BA#2.UK PLA-RP71/125/140BA2.UK OCH412 OCB412
PLA-RP100BA3 PLA-RP100BA3 OCH459
OCB459
PCA-RP50/60/71/100/125/140KA PCA-RP50/60/71/100/125/140KA OCH454
OCB454
PCA-RP71/125HA PCA-RP71/125HA#1 OC329
PKA-RP35/50HAL PKA-RP35/50HAL OCH453
OCB453
PKA-RP60/71/100KAL PKA-RP60/71/100KAL OCH452
OCB452
PSA-RP71/100/125/140GA PSA-RP71/100/125/140GA#1 OC332
PEAD-RP35/50/60/71/100/125/140JA(L) PEAD-RP35/50/60/71/100/125/140JA(L)(R1).UK HWE08130 BWE08240
BWE09220
PEA-RP200/250/400/500GA PEA-RP200/250/400/500GA.TH-AF
PEA-RP200/250GA.TH-AFMF HWE0708A
3SAFETY PRECAUTION
3-2. 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.
2REFERENCE MANUAL
1TECHNICAL CHANGE
PUHZ-RP200YKA PUHZ-RP200YKAR1
• Power board (P.B.) has been changed.
• Controller board (C.B.) has been changed. (S/W version up)

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 syphon type.
· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
Gravimeter
Unit
Use new refrigerant pipes.
Make sure that the inside and outside of refrige-
rant piping is clean and it has no contaminants
such as sulfur, oxides, dirt, shaving particles, etc,
which are hazard to refrigerant cycle.
In addition, use pipes with specified thickness.
Store the piping to be used indoors during
installation and both ends of the piping sealed
until just before brazing. (Leave elbow joints, etc.
in their packaging.)
The refrigerant oil applied to flare and flange
connections must be ester oil, ether oil or
alkylbenzene oil in a small amount.
In case of using the existing pipes for R22, be careful with
the followings.
· Be sure to clean the pipes and make sure that the insides
of the pipes are clean.
· Change flare nut to the one provided with this product.
Use a newly flared pipe.
· Avoid using thin pipes.
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition change
may occur in refrigerant and the efficiency will be lowered.
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.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.

4
3-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES
(1) Flowchart
[4] Refrigerant leakage detection function
This air conditioner (outdoor unit PUHZ-RP35~140, except PUHZ-RP200/250) can detect refrigerant leakage which may
happen during a long period of use. In order to enable the leakage detection, settings are required to let the unit memo-
rize the initial conditions (initial learning). Refer to 14-3. INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION
FUNCTION.
[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 flowchart below to determine if the existing pipes can be used and if it is necessary to use a filter dryer.
• If the diameter of the existing pipes is different from the specified diameter, refer to technological data materials to confirm if
the pipes can be used.
▼
▼
▼
▼
▼
▼▼
Measure the existing pipe thickness and
check for damage.
The existing pipe thickness meets specifica-
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
Test run 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
for RP100-250 models.
Use new pipes for RP35-71 models.
The existing pipe thickness does not meet
specifications or the pipes are damaged.

5
(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.
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 0.7 mm 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 refriger-
ants. Therefore, to enhance airtightness and intensity, 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 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.
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
+
+36.0mm for
indoor unit
of RP100,
125 and 140
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 adop-
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 adopter for rever-
se flow)
(Usable by adjusting
flaring dimension)
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)
: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.
Dimension A
Dimension B

6
4 FEATURES
CHARGELESS SYSTEM
PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT.
Max. 30m (PUHZ-RP35-250)
The refrigerant circuit with LEV (Linear Expansion Valve) and power receiver always control the optimal refrigerant level
regardless of the length (30 m max. and 5 m min.) 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 reli-
ability of the work done. It also helps to speed up the installation time.
REFRIGERANT LEAKAGE DETECTION FUNCTION (except for RP200/250)
PUHZ-RP35-140 can detect refrigerant leakage which may happen during a long period of use.
PUHZ-RP60VAH4
PUHZ-RP71VHA4
PUHZ-RP100VKA
PUHZ-RP125VKA
PUHZ-RP140VKA
PUHZ-RP100YKA
PUHZ-RP125YKA
PUHZ-RP140YKA
PUHZ-RP200YKA
PUHZ-RP200YKAR1
PUHZ-RP250YKA
PUHZ-RP35VHA4
PUHZ-RP50VHA4

7
5 SPECIFICATIONS
A
kW
W
kW
*
/min(CFM )
dB
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
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) %No.
Fan motor output
Airflow
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
Mode
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Service Ref. PUHZ-RP35VHA4 PUHZ-RP50VHA4
Cooling
13
0.9
Munsell 3Y 7.8/1.1
Linear Expansion Valve
Hermetic
SNB130FGCH
Inverter
—
Plate fin coil
Propeller fan %1
0.040
35(1,240)
Reverse cycle
44
46
800(31-1/2)
300+23(11-13/16+7/8)
600(23-5/8)
42(93)
R410A
2.5(5.5)
0.45(NEO22)
6.35(1/4)
12.7(1/2)
Flared
Flared
Max. 30m
Max. 50m
Heating Cooling
13
1.1
Heating
HP switch
Comp.shell thermo
Discharge thermo
Single, 50Hz, 230V
OUTDOOR UNIT
REFRIGERANT PIPING
A
kW
W
kW
*
/min(CFM )
dB
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
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) %No.
Fan motor output
Airflow
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
Mode
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Service Ref. PUHZ-RP71VHA4
PUHZ-RP60VHA4 Cooling
SNB172FDHM1
Propeller fan %1
0.086
55(1,940)
47
48
943(37-1/8)
67(148)
3.5(7.7)
0.70(FV50S)
Max. 50m
Munsell 3Y 7.8/1.1
Linear Expansion Valve
Hermetic
Inverter
—
Plate fin coil
Reverse cycle
950(37-3/8)
330+30(13+1-3/16)
R410A
9.52(3/8)
15.88(5/8)
Flared
Flared
Max. 30m
HeatingCooling Heating
HP switch
Comp.shell thermo
Discharge thermo
Single, 50Hz, 230V
OUTDOOR UNIT
REFRIGERANT PIPING
1.61.4
19

8
A
kW
W
kW
*
/min(CFM )
dB
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
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) %No.
Fan motor output
Airflow
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
Mode
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Service Ref. PUHZ-RP140VKAPUHZ-RP125VKA
PUHZ-RP100VKA Cooling
49
51
Munsell 3Y 7.8/1.1
Linear Expansion Valve
Hermetic
Inverter
—
Plate fin coil
Propeller fan %2
0.060+0.060
Reverse cycle
1,050(41-5/16)
330+30(13+1-3/16)
1,338(52-11/16)
R410A
5.0(11.0)
1.40(FV50S)
9.52(3/8)
15.88(5/8)
Flared
Flared
Max. 30m
Max. 75m
HeatingCooling Heating Cooling
28
2.9
Heating
HP switch
Comp.shell thermo
Discharge thermo
Single 50Hz, 230V
OUTDOOR UNIT
REFRIGERANT PIPING
2.4
1.9
26.5
ANB33FDUMT ANB42FDWMT
50
52
116(256) 119(262)
110(3,880) 120(4,230)
A
kW
W
kW
*
/min(CFM )
dB
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
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) %No.
Fan motor output
Airflow
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
Mode
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Service Ref. PUHZ-RP140YKAPUHZ-RP125YKA
PUHZ-RP100YKA Cooling
49
51
9.5
Munsell 3Y 7.8/1.1
Linear Expansion Valve
Hermetic
Inverter
—
Plate fin coil
Propeller fan %2
0.060+0.060
Reverse cycle
1,050(41-5/16)
330+30(13+1-3/16)
1,338(52-11/16)
R410A
5.0(11.0)
1.40(FV50S)
9.52(3/8)
15.88(5/8)
Flared
Flared
Max. 30m
Max. 75m
HeatingCooling Heating Cooling
2.9
Heating
HP switch
Comp.shell thermo
Discharge thermo
3phase, 50Hz, 400V
OUTDOOR UNIT
REFRIGERANT PIPING
2.41.9
110(3,880) 120(4,230)
813
ANB33FDVMT
50
52
ANB42FDXMT
124(273) 126(278) 132(291)

9
A
kW
W
kW
*
/min(CFM )
dB
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
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) %No.
Fan motor output
Airflow
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
Mode
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Service Ref. PUHZ-RP250YKA
PUHZ-RP200YKA
PUHZ-RP200YKAR1
Cooling
Munsell 3Y 7.8/1.1
Linear Expansion Valve
Hermetic
Inverter
—
Plate fin coil
Propeller fan %2
0.150 + 0.150
140(4,940)
Reverse cycle
1,050(41-5/16)
330 + 30(13+1-3/16)
1,338(52-11/16)
R410A
Flared
Flared & Brazing
Max. 30m
Max. 120m
Heating Cooling
21
ANB66FFRMT
5.5
Heating
HP switch
Comp.shell thermo
Discharge thermo
3 phase 50Hz, 400V
OUTDOOR UNIT
REFRIGERANT PIPING
ANB52FFQMT
4.7
19
58
59
135(297)
7.1(15.7)
1.70(FV50S)
9.52(3/8)
25.4(1)
58
59
141(311)
7.7(17.0)
1.70(FV50S)
12.7(1/2)
25.4(1)

10
6DATA
6-1. REFILLING REFRIGERANT CHARGE (R410A : kg) PUHZ-RP35~140
U-V
U-W
W-V
Service Ref.
Compressor model
Winding
Resistance
()
ANB33FDUMT
(at 20°C)
0.466
0.466
0.466
SNB130FGCH
0.64
0.64
0.64
PUHZ-RP100/125VKA
ANB33FDVMT
1.20
1.20
1.20
ANB42FDXMTANB42FDWMT
1.20
1.20
1.20
0.302
0.302
0.302
PUHZ-RP100/125YKA
PUHZ-RP35/50VHA4
SNB172FDHM1
1.34
1.34
1.34
PUHZ-RP60/71VHA4
PUHZ-RP140YKA
PUHZ-RP140VKA
U-V
U-W
W-V
Service Ref.
Compressor model
Winding
Resistance
()
ANB52FFQMT
(at 20°C)
0.30
0.30
0.30
PUHZ-RP200YKA(R1)
ANB66FFRMT
0.37
0.37
0.37
PUHZ-RP250YKA
Longer pipe than 30 m, additional charge is
required.
Service Ref. Piping length (one way) Initial
charged
10m 20m 30m 40m 50m 60m 75m
PUHZ-RP35VHA4 2.1 2.3 2.5 2.7 2.9 — — 2.5
PUHZ-RP50VHA4 2.1 2.3 2.5 2.7 2.9 — — 2.5
PUHZ-RP60VHA4 3.1 3.3 3.5 4.1 4.7 — — 3.5
PUHZ-RP71VHA4 3.1 3.3 3.5 4.1 4.7 — — 3.5
PUHZ-RP100VKA
PUHZ-RP100YKA 4.6 4.8 5.0 5.6 6.2 6.8 7.5 5.0
PUHZ-RP125VKA
PUHZ-RP125YKA 4.6 4.8 5.0 5.6 6.2 6.8 7.5 5.0
PUHZ-RP140VKA
PUHZ-RP140YKA 4.6 4.8 5.0 5.6 6.2 6.8 7.5 5.0
6-3. COMPRESSOR TECHNICAL DATA
6-2. ADJUSTING THE AMOUNT OF REFRIGERANT PUHZ-RP200/250
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 71-120 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-RP200YKA
PUHZ-RP200YKAR1
PUHZ-RP250YKA
120m 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
:9.52overalllength [m]
%
0.09 [kg/m]
Branch piping:Liquid
line size
:9.52 overall length[m]
%0.06[kg/m]
Branch piping:Liquid
line size
:6.35 overall length[m]
%0.02[kg/m]
3.6 (kg)
Amount of additional
charge [kg]
Main piping:
Liquid line size
:12.7overall length[m]
%0.11 [kg/m]
=
Additional charge amount
for 70 m RP200 3.6 kg
RP250 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 70m," perform the additional charge using the amount shown
in "Additional charge amount for 70m."