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
ii
IMPORTANT!
Please Read Before Starting
This air conditioner must be installed by the sales dealer
or installer.
This information is provided for use only by authorized
persons.
For safe installation and trouble-free operation, you
For safe installation and trouble-free operation, you
must:
●
Carefully read this instruction booklet before beginning.
●
Follow each installation or repair step exactly as shown.
●
This air conditioner shall be installed in accordance with
National Wiring Regulations.
●
That compliance with national gas regulations shall be
observed.
●
The product meets the technical requirements of
EN/IEC 61000-3-3.
●
Pay close attention to all warning and caution notices
given in this manual.
WARNING
This symbol refers to a hazard or
unsafe practice which can result in
severe personal injury or death.
CAUTION
This symbol refers to a hazard or
unsafe practice which can result
in personal injury or product or
property damage.
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for
a special problem, contact our sales/service outlet or your
certified dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for
improper installation or maintenance service, including
failure to follow the instructions in this document.
WARNING
• Do not use means to accelerate
the defrosting process or to clean,
other than those recommended by
the manufacturer.
• The appliance shall be stored
in a room without continuously
operating ignition sources (for
example: open flames, an
operating gas appliance or an
operating electric heater).
• Do not pierce or burn.
• Be aware that refrigerants may not
contain an odour.
SPECIAL PRECAUTIONS
WARNING When Wiring
WARNING
Risk of Electric Shock
ELECTRICAL SHOCK CAN
CAUSE SEVERE PERSONAL
INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD
ATTEMPT TO WIRE THIS
SYSTEM.
• Do not supply power to the unit until
all wiring and tubing are completed or
reconnected and checked.
• Highly dangerous electrical voltages are
used in this system. Carefully refer to the
wiring diagram and these instructions
when wiring. Improper connections
and inadequate grounding can cause
accidental injury or death.
• Connect all wiring tightly. Loose wiring
may cause overheating at connection
points and a possible fire hazard.
• Provide a power outlet to be used
exclusively for each unit.
• Provide a power outlet exclusively for
each unit, and full disconnection means
having a contact separation by 3 mm
in all poles must be incorporated in the
fixed wiring in accordance with the wiring
rules.
• To prevent possible hazards from
insulation failure, the unit must be
grounded.
00_301040_all.indb 2
2018/3/2 10:02:31
• Check that cabling will not be subject
to wear, corrosion, excessive pressure,
vibration, sharp edges or any other
adverse environmental effects.
The check shall also take into account
the effects of aging or continual vibration
from sources such as compressors or
fans.
• This equipment is strongly
recommended to be installed with
Earth Leakage Circuit Breaker (ELCB)
or Residual Current Device (RCD).
Otherwise, it may cause electrical
shock and fire in case of equipment
breakdown or insulation breakdown.
When Transporting
• It may need two or more people to carry
out the installation work.
• Be careful when picking up and moving
the indoor and outdoor units. Get a
partner to help, and bend your knees
when lifting to reduce strain on your
back. Sharp edges or thin aluminum
fins on the air conditioner can cut your
fingers.
When storing…
WARNING
• The appliance shall be stored
in a well-ventilated area where
the room size corresponds to
the room area as specified for
operation.
• The appliance shall be stored
in a room without continuously
operating open flames (for
example: an operating gas
appliance) and ignition sources
(for example: an operating
electric heater).
• The appliance shall be stored so as
to prevent mechanical damage from
occurring.
When Installing…
• Select an installation location which is
rigid and strong enough to support or
hold the unit, and select a location for
easy maintenance.
• In cases that require mechanical
ventilation, ventilation openings shall be
kept clear of obstruction.
…In a Room
Properly insulate any tubing run inside
a room to prevent “sweating” that can
cause dripping and water damage to
walls and floors.
CAUTION
Keep the fire alarm and
the air outlet at least
1.5 m away from the
unit.
…In Moist or Uneven Locations
Use a raised concrete pad or concrete
blocks to provide a solid, level foundation
for the outdoor unit. This prevents water
damage and abnormal vibration.
…In an Area with High Winds
…In an Area with High Winds
Securely anchor the outdoor unit down
with bolts and a metal frame. Provide a
suitable air baffle.
…In a Snowy Area (for Heat Pump-
…In a Snowy Area (for Heat Pump-
type Systems)
Install the outdoor unit on a raised
platform that is higher than drifting snow.
Provide snow vents.
(Type K2)
...At least 1.8m
Indoor unit of this air conditioner shall be
installed in a height of at least 1.8 m.
…In laundry rooms
Do not install in laundry rooms. Indoor
unit is not drip proof.
When Connecting Refrigerant
Tubing
Pay particular attention to refrigerant
leakages.
(Type Y2)
(Type U2, Type T2, Type F1, Type N1)
...At least 2.5m
Indoor unit of this air conditioner shall be
installed in a height of at least 2.5 m.
…At least 2.2m
Indoor unit of this air conditioner shall be
installed in a height of at least 2.2m.
SM830274-02_欧州向けR410Aシングル_TD&SM.indb 2
2019/09/24 16:21:15
iii
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.
00_301040_all.indb 4
2018/3/2 10:02:31
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.
00_301040_all.indb 5
2018/3/2 10:02:32
SM830274-02_欧州向けR410Aシングル_TD&SM.indb 3
2019/09/24 16:21:16
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.
00_301040_all.indb 4
2018/3/2 10:02:31
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.
00_301040_all.indb 5
2018/3/2 10:02:32
SM830274-02_欧州向けR410Aシングル_TD&SM.indb 4
2019/09/24 16:21:16
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
01_2812008_2WAY_eng.indb 5
2016/11/28 13:03:48
SM830274-02_欧州向けR410Aシングル_TD&SM.indb 5
2019/09/24 16:21:16