Panasonic U-4LE1E5 / U-4LE1E8 / U-5LE1E5 / U-5LE1E8 / U-6LE1E5 / U-6LE1E8 Service Manual ▷ View online
85464849296003
REFERENCE NO.
SM830196-03
Mini VRF System
Outdoor Unit
Model No.
HP = horsepower
4HP
U-4LE1E5
5HP
U-5LE1E5
6HP
U-6LE1E5
U-4LE1E8
U-5LE1E8
U-6LE1E8
Model Name
Class
E1
High Static Pressure
Ducted
Ducted
Indoor Unit
Class
22
U1
4-Way Cassette
S-22MU1E5
S-22MU1E51
L1
2-Way Cassette
S-22ML1E5
D1
1-Way Cassette
F1
Low Silhouette Ducted
S-22MF1E5
T1
Ceiling
K1
Wall Mounted
S-22MK1E5
R1
Concealed Floor
Standing
Standing
S-22MR1E5
P1
Floor Standing
S-22MP1E5
Y1
4-Way Cassette 60×60
S-22MY1E5
F2
Low Silhouette Ducted
S-22MF2E5
M1
Slim Low Static Ducted
S-22MM1E5
15
S-15MM1E5
28
S-28MU1E5
S-28MU1E51
S-28ML1E5
S-28MF1E5
S-28MD1E5
S-28MK1E5
S-28MR1E5
S-28MP1E5
S-28MY1E5
S-28MF2E5
S-28MM1E5
36
S-36MU1E5
S-36MU1E51
S-36ML1E5
S-36MF1E5
S-36MD1E5
S-36MK1E5
S-36MR1E5
S-36MP1E5
S-36MY1E5
S-36MF2E5
S-36MM1E5
S-36MT1E5
45
S-45MU1E5
S-45MU1E51
S-45ML1E5
S-45MF1E5
S-45MD1E5
S-45MK1E5
S-45MR1E5
S-45MP1E5
S-45MY1E5
S-45MF2E5
S-45MM1E5
S-45MT1E5
56
S-56MU1E5
S-56MU1E51
S-56ML1E5
S-56MF1E5
S-56MD1E5
S-56MK1E5
S-56MR1E5
S-56MP1E5
S-73ME1E5
S-106ME1E5
S-140ME1E5
S-56MY1E5
S-56MF2E5
S-56MM1E5
S-56MT1E5
60
S-60MU1E51
S-60MF2E5
73
S-73MU1E5
S-73MU1E51
S-73ML1E5
S-73MF1E5
S-73MD1E5
S-73MK1E5
S-71MR1E5
S-71MP1E5
S-73MF2E5
S-73MT1E5
90
S-90MU1E51
S-90MF1E5
S-90MF2E5
106
S-106MU1E5
S-106MU1E51
S-106MF1E5
S-106MK1E5
S-106MF2E5
S-106MT1E5
140
S-140MU1E5
S-140MU1E51
S-140MF1E5
S-140MF2E5
S-140MT1E5
160
S-160MU1E5
S-160MU1E51
S-160MF1E5
K2
Wall Mounted
S-22MK2E5
S-36MK2E5
S-28MK2E5
Y2
4-Way Cassette 60×60
S-22MY2E5
S-45MY2E5
S-56MY2E5
S-160MF2E5
Order No. SM830196-11CE
S-28MY2E5
S-36MY2E5
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IMPORTANT!
Please Read Before Starting
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.
or installer.
This information is provided for use only by authorized
persons.
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.
This product is intended for professional use.
Permission from the power supplier is required when
installing the U-4LE1E8, U-5LE1E8, U-6LE1E8,
outdoor units that are connected to a 16 A distribution
network.
installing the U-4LE1E8, U-5LE1E8, U-6LE1E8,
outdoor units that are connected to a 16 A distribution
network.
This equipment complies with EN/IEC 61000-3-12
provided that the short-circuit power Ssc is greater
than or equal to the following table at the interface point
between the user’s supply and the public system.
It is the responsibility of the installer or user of
the equipment to ensure, by consultation with the
distribution network operator if necessary, that the
equipment is connected only to a supply with a short-
circuit power Ssc greater than or equal to the value in
the table.
than or equal to the following table at the interface point
between the user’s supply and the public system.
It is the responsibility of the installer or user of
the equipment to ensure, by consultation with the
distribution network operator if necessary, that the
equipment is connected only to a supply with a short-
circuit power Ssc greater than or equal to the value in
the table.
U-4LE1E5
U-5LE1E5
U-6LE1E5
Ssc
350 kVA
400 kVA
550 kVA
This equipment complies with EN/IEC 61000-3-11
provided that the system impedance Zmax is less than
or equal to the values corresponding to each model as
shown in the table below at the interface point between
the user’s supply and the public system. Consult with
the supply authority for the system impedance Zmax.
or equal to the values corresponding to each model as
shown in the table below at the interface point between
the user’s supply and the public system. Consult with
the supply authority for the system impedance Zmax.
U-4LE1E5
U-5LE1E5
U-6LE1E5
Zmax
0.298
Ω
0.298
Ω
0.298
Ω
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.
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.
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.
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.
improper installation or maintenance service, including
failure to follow the instructions in this document.
SPECIAL PRECAUTIONS
WARNING
When Wiring
ELECTRICAL SHOCK CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH.
ONLY A QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD ATTEMPT TO
WIRE THIS SYSTEM.
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.
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.
hazard.
• Provide a power outlet to be used exclusively for each
unit.
• ELCB must be incorporated in the fixed wiring.
Circuit breaker must be incorporated in the fixed wiring
in accordance with the wiring regulations.
in accordance with the wiring regulations.
U-4LE1E5
U-5LE1E5
U-6LE1E5
Circuit breaker
30 A
40 A
40 A
U-4LE1E8
U-5LE1E8
U-6LE1E8
Circuit breaker
20 A
20 A
20 A
• Provide a power outlet exclusively for each unit, and
full disconnection means having a contact separation
in all poles must be incorporated in the fixed wiring in
accordance with the wiring rules.
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.
When Transporting
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.
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.
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When Connecting Refrigerant Tubing
• Ventilate the room well, 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 poisonous gas.
contact of the refrigerant gas with a flame as this will
cause the generation of poisonous 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.
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.
refrigeration parts.
Handle liquid refrigerant carefully as it may cause
frostbite.
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.
refrigerant (R410A) in refrigeration
cycle. It causes capacity down, and
risk of explosion and injury due to
high tension inside the refrigerant
cycle.
• Refrigerant gas leakage may cause
fire.
Do not add or replace refrigerant
other than specified type.
It may cause product damage, burst
and injury etc.
Do not add or replace refrigerant
other than specified type.
It may cause product damage, burst
and injury etc.
•
When Servicing
• Turn the power OFF at the main power box
(mains) before opening the unit to check or repair
electrical parts and wiring.
electrical parts and wiring.
•
Keep your fingers and clothing away from any moving
parts.
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 being serviced.
check that no metal scraps or bits of wiring have been
left inside the unit being serviced.
WARNING
•
•
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.
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.
CAUTION
• Do not touch the air inlet or the
sharp aluminum fins of the
outdoor unit. You may get injured.
outdoor unit. You may get injured.
• Ventilate any enclosed areas when
installing or testing the refrigeration
system. Escaped refrigerant gas, on
contact with fire or heat, can produce
dangerously toxic gas.
system. Escaped 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 poisonous gas.
comes in contact with a burning stove,
gas water heater, electric room heater
or other heat source, it can cause the
generation of poisonous gas.
Others
CAUTION
•
•
•
Do not touch the air inlet or the
sharp aluminum fins of the
outdoor unit. You may get injured.
sharp aluminum fins of the
outdoor unit. You may get injured.
Do not sit or step on the unit,
you may fall down accidentally.
you may fall down accidentally.
Do not stick any object into the
FAN CASE.
You may be injured and the
unit may be damaged.
FAN CASE.
You may be injured and the
unit may be damaged.
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 a Room
Properly insulate any tubing run inside a room to prevent
“sweating” that can cause dripping and water damage to
walls and floors.
enough to support or hold the unit, and select a location
for easy maintenance.
…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.
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
Securely anchor the outdoor unit down with bolts and a
metal frame. Provide a suitable air baffle.
…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.
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
Securely anchor the outdoor unit down with bolts and a
metal frame. Provide a suitable air baffle.
…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.
ii
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RoHS
· This product does not contain any hazardous
· This product does not contain any hazardous
substances prohibited by the RoHS Directive.
WARNING
· You are requested to use RoHS compliant
· You are requested to use RoHS compliant
parts for maintenance or repair.
2.
The standards for minimum room volume are as follows.
(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).
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).
(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.
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.
3.
The minimum indoor floor space compared with the
amount of refrigerant is roughly as follows: (When the
ceiling is 2.7 m high)
amount of refrigerant is roughly as follows: (When the
ceiling is 2.7 m high)
40.5
54.0
27.0
13.5
13.5
0.0
20
10
0
30
40
60
70
80
90 100
50
67.5
81.0
94.5
108.0
121.5
135.0
148.5
162.0
175.5
189.0
202.5
216.0
229.5
243.0
256.0
270.0
m
2
m
3
15
10
10
5
0
0
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
283.5
297.0
310.5
324.0
337.5
k
g
Check of Density Limit
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.
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.
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 (k
g)
Min. volume of the indoor unit installed room (m
3
)
< Density limit (k
g/m
3
)
The density limit of refrigerant which is used in multi air
conditioners is 0.3 k
conditioners is 0.3 k
g/m
3
(ISO 5149).
NOTE
1.
If there are 2 or more refrigerating systems in a single
refrigerating device, the amount of refrigerant should be as
charged in each independent device.
refrigerating device, the amount of refrigerant should be as
charged in each independent device.
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in rooms A,
B and C is 10 k
B and C is 10 k
g.
The possible amount of leaked refrigerant gas in rooms D,
E and F is 15 k
E and F is 15 k
g.
e.g., charged
amount (10 k
amount (10 k
g)
Indoor unit
Outdoor unit
e.g., charged
amount (15 k
amount (15 k
g)
Room A
Room B
Room C
Room D
Room E
Room F
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
Range below the
density limit of
0.3 k
density limit of
0.3 k
g/m³
(Countermeasures
not needed)
not needed)
Range above the
density limit of 0.3
k
density limit of 0.3
k
g/m³
(Countermeasures
needed)
needed)
Total amount of refrigerant
Min. indoor volume
Min. indoor floor area
(when the ceiling is 2.7 m high)
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