Panasonic U-50PE2E5A / U-100PE1E8A / U-100PEY1E8 / U-125PE1E8A / U-125PEY1E8 / U-140PE1E8A / U-140PEY1E8 / S-100PU2E5B / S-125PU2E5B / S-140PU2E5B / S-71PU2E5B / S-100PF1E5B / S-125PF1E5B / S-140PF1E5B / S-71PF1E5B Service Manual ▷ View online
iv
WARNING
• When performing piping work, do
not mix air except for specified
refrigerant (R410A) in refrigeration
cycle. It causes capacity down, and
risk of explosion and injury due to
high tension inside the refrigerant
cycle.
• If the refrigerant comes in contact
with a flame, it produces a toxic
gas.
• Do not add or replace refrigerant
other than specified type. It may
cause product damage, burst and
injury, etc.
• Ventilate the room immediately, in the
event that is refrigerant gas leaks during
the installation. Be careful not to allow
contact of the refrigerant gas with a
flame as this will cause the generation
of toxic gas.
• Keep all tubing runs as short as
possible.
• Use the flare method for connecting
tubing.
• Apply refrigerant lubricant to the
matching surfaces of the flare and union
tubes before connecting them, then
tighten the nut with a torque wrench for
a leak-free connection.
• Check carefully for leaks before starting
the test run.
• Do not leak refrigerant while piping work
for an installation or re-installation, and
while repairing refrigeration parts.
Handle liquid refrigerant carefully as it
may cause frostbite.
• Under no circumstances shall potential
sources of ignition be used in the
searching or detection of refrigerant
leaks.
• A halide torch (or any other detector
using a naked flame) shall not be used.
• Electronic leak detectors may be used
to detect refrigerant leaks but, the
sensitivity may not be adequate, or
may need re-calibration. (Detection
equipment shall be calibrated in a
refrigerant-free area.)
• Ensure that the detector is not a
potential source of ignition and is
suitable for the refrigerant used.
• Leak detection fluids are suitable for
use with most refrigerants but the use of
detergents containing chlorine shall be
avoided as the chlorine may react with
the refrigerant and corrode the copper
pipe-work.
• If a leak is suspected, all naked flames
shall be removed/extinguished.
• If a leakage of refrigerant is found which
requires brazing, all of the refrigerant
shall be recovered from the system, or
isolated (by means of shut off valves)
in a part of the system remote from the
leak. Oxygen free nitrogen (OFN) shall
then be purged through the system both
before and during the brazing process.
When Servicing
• Contact to the sales dealer or service
dealer for a repair.
• Be sure to turn off the power before
servicing.
• Turn the power OFF at the main
power box (mains), wait at least 10
minutes until it is discharged, then
open the unit to check or repair
electrical parts and wiring.
• Keep your fingers and clothing away
from any moving parts.
• Clean up the site after you finish,
remembering to check that no metal
scraps or bits of wiring have been left
inside the unit.
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WARNING
• This product must not be
modified or disassembled under
any circumstances. Modified or
disassembled unit may cause fire,
electric shock or injury.
• Do not clean inside the indoor and
outdoor units by users. Engage
authorized dealer or specialist for
cleaning.
• In case of malfunction of this
appliance, do not repair by
yourself. Contact to the sales
dealer or service dealer for a
repair and disposal.
CAUTION
• Ventilate any enclosed areas
when installing or testing the
refrigeration system. Leaked
refrigerant gas, on contact
with fire or heat, can produce
dangerously toxic gas.
• Confirm after installation that
no refrigerant gas is leaking. If
the gas comes in contact with a
burning stove, gas water heater,
electric room heater or other
heat source, it can cause the
generation of toxic gas.
Others
When disposal of the product, comply
with national regulations.
WARNING
• Do not sit or step on the
unit. You may fall down
accidentally.
CAUTION
• Do not touch the air inlet or
the sharp aluminum fins of
the outdoor unit. You may get
injured.
• Do not stick any object into
the FAN CASE.
You may be injured and the
unit may be damaged.
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v
(3) If an indoor unit is installed in each partitioned room and
the refrigerant tubing is interconnected, the smallest room
of course becomes the object. But when mechanical
ventilation is installed interlocked with a gas leakage
detector in the smallest room where the density limit is
exceeded, the volume of the next smallest room becomes
the object.
of course becomes the object. But when mechanical
ventilation is installed interlocked with a gas leakage
detector in the smallest room where the density limit is
exceeded, the volume of the next smallest room becomes
the object.
2. The minimum indoor floor space compared with the
amount of refrigerant is roughly as follows: (When the
ceiling is 2.7 m high)
ceiling is 2.7 m high)
20
10
0
30
40
60
70
80
90 100
50
m
2
m
3
40.5
54.0
27.0
13.5
0.0
67.5
81.0
94.5
108.0
121.5
135.0
148.5
162.0
175.5
189.0
202.5
216.0
15
10
5
0
0
20
25
30
35
40
45
50
55
60
65
70
75
80
229.5
85
kg
Total amount of refrigerant
Range below the
density limit of
0.44
kg/m³
(Countermeasures
not needed)
Range above the
density limit of
0.44
kg/m³
(Countermeasures
needed)
Min. indoor volume
Min. indoor floor area (when the ceiling is 2.7 m high)
Check of Density Limit
Check the amount of refrigerant in the system and
floor space of the room according to the legislation on
refrigerant drainage. If there is no applicable legislation,
follow the standards described below.
floor space of the room according to the legislation on
refrigerant drainage. If there is no applicable legislation,
follow the standards described below.
The room in which the air conditioner is to be installed
requires a design that in the event of refrigerant gas
leaking out, its density will not exceed a set limit.
The refrigerant (R410A), which is used in the air conditioner,
is safe, without the toxicity or combustibility of ammonia, and
is not restricted by laws imposed to protect the ozone layer.
However, since it contains more than air, it poses the risk of
suffocation if its density should rise excessively. Suffocation
from leakage of refrigerant is almost non-existent. With the
recent increase in the number of high density buildings,
however, the installation of multi air conditioner systems is
on the increase because of the need for effective use of floor
space, individual control, energy conservation by curtailing heat
and carrying power, etc.
Most importantly, the multi air conditioner system is able
to replenish a large amount of refrigerant compared to
conventional individual air conditioners. If a single unit of the
multi air conditioner system is to be installed in a small room,
select a suitable model and installation procedure so that if the
refrigerant accidentally leaks out, its density does not reach the
limit (and in the event of an emergency, measures can be made
before injury can occur).
In a room where the density may exceed the limit, create an
opening with adjacent rooms, or install mechanical ventilation
combined with a gas leak detection device. The density is as
given below.
requires a design that in the event of refrigerant gas
leaking out, its density will not exceed a set limit.
The refrigerant (R410A), which is used in the air conditioner,
is safe, without the toxicity or combustibility of ammonia, and
is not restricted by laws imposed to protect the ozone layer.
However, since it contains more than air, it poses the risk of
suffocation if its density should rise excessively. Suffocation
from leakage of refrigerant is almost non-existent. With the
recent increase in the number of high density buildings,
however, the installation of multi air conditioner systems is
on the increase because of the need for effective use of floor
space, individual control, energy conservation by curtailing heat
and carrying power, etc.
Most importantly, the multi air conditioner system is able
to replenish a large amount of refrigerant compared to
conventional individual air conditioners. If a single unit of the
multi air conditioner system is to be installed in a small room,
select a suitable model and installation procedure so that if the
refrigerant accidentally leaks out, its density does not reach the
limit (and in the event of an emergency, measures can be made
before injury can occur).
In a room where the density may exceed the limit, create an
opening with adjacent rooms, or install mechanical ventilation
combined with a gas leak detection device. The density is as
given below.
Total amount of refrigerant (
kg)
Min. volume of the indoor unit installed room (m
3
)
< Density limit (
kg/m
3
)
The density limit of refrigerant which is used in multi air
conditioners is 0.44
conditioners is 0.44
kg/m
3
(ISO 5149).
NOTE
1. The standards for minimum room volume are as follows.
(1) No partition (shaded portion)
(1) No partition (shaded portion)
(2) When there is an effective opening with the adjacent room
for ventilation of leaking refrigerant gas (opening without
a door, or an opening 0.15% or larger than the respective
floor spaces at the top or bottom of the door).
a door, or an opening 0.15% or larger than the respective
floor spaces at the top or bottom of the door).
Outdoor unit
Refrigerant tubing
Indoor unit
Mechanical ventilation device – Gas leak detector
Refrigerant tubing
Outdoor unit
Indoor unit
Very
small
room
room
Small
room
Medium
room
room
Large room
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vi
(3) If an indoor unit is installed in each partitioned room and
the refrigerant tubing is interconnected, the smallest room
of course becomes the object. But when mechanical
ventilation is installed interlocked with a gas leakage
detector in the smallest room where the density limit is
exceeded, the volume of the next smallest room becomes
the object.
of course becomes the object. But when mechanical
ventilation is installed interlocked with a gas leakage
detector in the smallest room where the density limit is
exceeded, the volume of the next smallest room becomes
the object.
2. The minimum indoor floor space compared with the
amount of refrigerant is roughly as follows: (When the
ceiling is 2.7 m high)
ceiling is 2.7 m high)
20
10
0
30
40
60
70
80
90 100
50
m
2
m
3
40.5
54.0
27.0
13.5
0.0
67.5
81.0
94.5
108.0
121.5
135.0
148.5
162.0
175.5
189.0
202.5
216.0
15
10
5
0
0
20
25
30
35
40
45
50
55
60
65
70
75
80
229.5
85
kg
Total amount of refrigerant
Range below the
density limit of
0.44
kg/m³
(Countermeasures
not needed)
Range above the
density limit of
0.44
kg/m³
(Countermeasures
needed)
Min. indoor volume
Min. indoor floor area (when the ceiling is 2.7 m high)
Check of Density Limit
Check the amount of refrigerant in the system and
floor space of the room according to the legislation on
refrigerant drainage. If there is no applicable legislation,
follow the standards described below.
floor space of the room according to the legislation on
refrigerant drainage. If there is no applicable legislation,
follow the standards described below.
The room in which the air conditioner is to be installed
requires a design that in the event of refrigerant gas
leaking out, its density will not exceed a set limit.
The refrigerant (R410A), which is used in the air conditioner,
is safe, without the toxicity or combustibility of ammonia, and
is not restricted by laws imposed to protect the ozone layer.
However, since it contains more than air, it poses the risk of
suffocation if its density should rise excessively. Suffocation
from leakage of refrigerant is almost non-existent. With the
recent increase in the number of high density buildings,
however, the installation of multi air conditioner systems is
on the increase because of the need for effective use of floor
space, individual control, energy conservation by curtailing heat
and carrying power, etc.
Most importantly, the multi air conditioner system is able
to replenish a large amount of refrigerant compared to
conventional individual air conditioners. If a single unit of the
multi air conditioner system is to be installed in a small room,
select a suitable model and installation procedure so that if the
refrigerant accidentally leaks out, its density does not reach the
limit (and in the event of an emergency, measures can be made
before injury can occur).
In a room where the density may exceed the limit, create an
opening with adjacent rooms, or install mechanical ventilation
combined with a gas leak detection device. The density is as
given below.
requires a design that in the event of refrigerant gas
leaking out, its density will not exceed a set limit.
The refrigerant (R410A), which is used in the air conditioner,
is safe, without the toxicity or combustibility of ammonia, and
is not restricted by laws imposed to protect the ozone layer.
However, since it contains more than air, it poses the risk of
suffocation if its density should rise excessively. Suffocation
from leakage of refrigerant is almost non-existent. With the
recent increase in the number of high density buildings,
however, the installation of multi air conditioner systems is
on the increase because of the need for effective use of floor
space, individual control, energy conservation by curtailing heat
and carrying power, etc.
Most importantly, the multi air conditioner system is able
to replenish a large amount of refrigerant compared to
conventional individual air conditioners. If a single unit of the
multi air conditioner system is to be installed in a small room,
select a suitable model and installation procedure so that if the
refrigerant accidentally leaks out, its density does not reach the
limit (and in the event of an emergency, measures can be made
before injury can occur).
In a room where the density may exceed the limit, create an
opening with adjacent rooms, or install mechanical ventilation
combined with a gas leak detection device. The density is as
given below.
Total amount of refrigerant (
kg)
Min. volume of the indoor unit installed room (m
3
)
< Density limit (
kg/m
3
)
The density limit of refrigerant which is used in multi air
conditioners is 0.44
conditioners is 0.44
kg/m
3
(ISO 5149).
NOTE
1. The standards for minimum room volume are as follows.
(1) No partition (shaded portion)
(1) No partition (shaded portion)
(2) When there is an effective opening with the adjacent room
for ventilation of leaking refrigerant gas (opening without
a door, or an opening 0.15% or larger than the respective
floor spaces at the top or bottom of the door).
a door, or an opening 0.15% or larger than the respective
floor spaces at the top or bottom of the door).
Outdoor unit
Refrigerant tubing
Indoor unit
Mechanical ventilation device – Gas leak detector
Refrigerant tubing
Outdoor unit
Indoor unit
Very
small
room
room
Small
room
Medium
room
room
Large room
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Precautions for Installation Using New Refrigerant
1. Care regarding tubing
Material: Use seamless phosphorous deoxidized copper tube for refrigeration. Wall thickness shall comply with the applicable
legislation. The minimal wall thickness must be in accordance with the table below.
1-1. Process tubing
1-2.
2-1.
3-1.
* Using tools for R22 and R407C and new tools for R410A together can cause defects.
2-2.
Since R410A is a non-azeotrope, recharging the refrigerant in gas form can lower performance and cause defects in the unit.
Since refrigerant composition changes and performance decreases when gas leaks, collect the remaining refrigerant and recharge
the required total amount of new refrigerant after fixing the leak.
Since refrigerant composition changes and performance decreases when gas leaks, collect the remaining refrigerant and recharge
the required total amount of new refrigerant after fixing the leak.
Tool specifications have been changed due to the characteristics of R410A.
Some tools for R22- and R407C-type refrigerant systems cannot be used.
Some tools for R22- and R407C-type refrigerant systems cannot be used.
3-2. Use R410A exclusive cylinder only.
(with siphon tube)
Liquid refrigerant should be
recharged with the cylinder
standing on end as shown.
Liquid refrigerant should be
recharged with the cylinder
standing on end as shown.
Prevent impurities including water, dust and oxide from entering the tubing. Impurities can cause R410A refrigerant deterioration
and compressor defects. Due to the features of the refrigerant and refrigerating machine oil, the prevention of water and other
impurities becomes more important than ever.
and compressor defects. Due to the features of the refrigerant and refrigerating machine oil, the prevention of water and other
impurities becomes more important than ever.
Tubing size: Be sure to use the sizes indicated in the table below.
For the renewal tubing size, refer to the Technical Data.
When bending tubing, use a bending radius that is 4 times the outer diameter of the tubing or larger.
Use a tube cutter when cutting the tubing, and be sure to remove any flash. This also applies to distribution joints (optional).
Use sufficient care in handling the tubing. Seal the tubing ends with caps or tape to prevent dirt,
moisture, or other foreign substances from entering. These substances can result in system
malfunction.
moisture, or other foreign substances from entering. These substances can result in system
malfunction.
Material
Temper - O (Soft copper tube)
2. Be sure to recharge the refrigerant only in liquid form.
3. Different tools required
Item
New tool?
R407C tools
compatible
with R410A?
Remarks
Manifold gauge
Yes
Manifold gauge
Types of refrigerant, refrigerating machine oil,
and pressure gauge are different.
To resist higher pressure, material must be
changed.
Use a conventional vacuum pump if it is equipped
with a check valve. If it has no check valve,
purchase and attach a vacuum pump adapter.
Leak detectors for CFC and HCFC that react to
chlorine do not function because R410A contains
no chlorine. Leak detectors for HFC134a can be
used for R410A.
For systems that use R22, apply mineral oil
(Suniso oil) to the flare nuts on the tubing to
prevent refrigerant leakage. For machines that
use R407C or R410A, apply synthetic oil (ether
oil) to the flare nuts.
and pressure gauge are different.
To resist higher pressure, material must be
changed.
Use a conventional vacuum pump if it is equipped
with a check valve. If it has no check valve,
purchase and attach a vacuum pump adapter.
Leak detectors for CFC and HCFC that react to
chlorine do not function because R410A contains
no chlorine. Leak detectors for HFC134a can be
used for R410A.
For systems that use R22, apply mineral oil
(Suniso oil) to the flare nuts on the tubing to
prevent refrigerant leakage. For machines that
use R407C or R410A, apply synthetic oil (ether
oil) to the flare nuts.
Charge hose
Vacuum pump
Leak detector
Flaring oil
Outlet
Inlet
Valve
Yes
No
No
No
No
Yes
Yes
Yes
Vacuum pump
Yes
Single-outlet valve
01_2812008_2WAY_eng.indb 6
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CAUTION
Unit: mm
Copper tube
Outer diameter
Wall thickness
Wall thickness
6.35
9.52
12.7
15.88
0.8
0.8
0.8
1.0
Liquid
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vii
Important Information Regarding The Refrigerant Used
This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere.
Refrigerant type: R410A
GWP
(1)
value: 2088
(1)
GWP = global warming potential
Periodical inspections for refrigerant leaks may be required depending on European or local legislation.
Please contact your local dealer for more information.
Please contact your local dealer for more information.
Please fill in with indelible ink,
①: the factory refrigerant charge of the product
②: the additional refrigerant amount charged in the field
① +
②: the total refrigerant charge
(
①
+ ②) x ③/1000: CO
2
equivalent in tons; multiply the total refrigerant charge by GWP value, then divided by 1000.
on the refrigerant charge label supplied with the product.
The filled out label must be adhered in the proximity of the product charging port (e.g. onto the inside of the service cover).
1. Factory refrigerant charge of the product: see unit name plate
2. Additional refrigerant amount charged in the field*
3. Total refrigerant charge
4. Contains fluorinated greenhouse gases
5. Outdoor unit
6. Refrigerant cylinder and manifold for charging
7. GWP(global warming potential) of the refrigerant used in this product
8. CO
2. Additional refrigerant amount charged in the field*
3. Total refrigerant charge
4. Contains fluorinated greenhouse gases
5. Outdoor unit
6. Refrigerant cylinder and manifold for charging
7. GWP(global warming potential) of the refrigerant used in this product
8. CO
2
equivalent of fluorinated greenhouse gases contained in this product
* See the section “Tubing Size” on page 1-11-1-6.
4
5
6
7
This product contains fluorinated greenhouse gases.
CO
2
equivalent amount is shown in “CO
2
eq.”
1
2
“CO
2
eq.”
1 000
( ) x
+
1
2
3
1
1
kg
2
2
kg
1
2
3
kg
8
ton
R410A
GWP : 2088
3
* English text printed on this label is original. Each
language label will be sealed on this original text.
SM830274-02_欧州向けR410Aシングル_TD&SM.indb 7
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