U-LE1E5 2 Pipe Mini VRF Installation Manual

INSTALLATION INSTRUCTIONS
– Mini VRF System Air Conditioner –
INSTRUCTIONS D’INSTALLATION
– Climatiseur Système Mini-VRF –
EINBAUANLEITUNG
– Mini VRF System-Klimaanlage –
ISTRUZIONI PER L’INSTALLAZIONE
– Condizionatore d’aria VRF Mini –
INSTRUÇÕES DE INSTALAÇÃO
– Sistema de Ar Condicionado Mini VRF –
ΟΔΗΓΙΕΣ ΤΟΠΟΘΕΤΗΣΗΣ
– Κλιματιστικό σύστημα Mini VRF –
INSTRUCCIONES DE INSTALACIÓN
– Acondicionador de aire del sistema Mini VRF –
INSTALLATIE-INSTRUCTIES
– Mini VRF Systeem Airconditioner –
ИНСТРУКЦИИ ЗА МОНТАЖ
– Климатик мини система VRF –
ИНСТРУКЦИИ ПО УСТАНОВКЕ
– Кондиционер системы Mini VRF –
ВКАЗІВКИ ЩОДО ВСТАНОВЛЕННЯ
– Система кондиціювання повітря Mini VRF –
EN
for Refrigerant R410A
pour réfrigérant R410A
FR
für Kühlmittel R410A
per refrigerante R410A
DE
Outdoor Units
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
para Refrigerante R410A
για το ψυκτικό R410A
IT
para refrigerante R410A
PT
voor koelmiddel R410A
за хладилен агент R410A
GR
для хладагента R410A
для охолоджувача R410A
ES
NL
Unités extérieures
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
Außeneinheiten
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
Unità esterne
BL
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
Unidades exteriores
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
Εξωτερικές Μονάδες
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
RU
Unidades exteriores
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
Buiteneenheden
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
Външни модули
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
UK
Внешние блоки
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
Ззовнішні агрегати
U-4LE1E5, U-5LE1E5, U-6LE1E5, U-4LE1E8, U-5LE1E8, U-6LE1E8
85464369493021 2011
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INSTALLATION INSTRUCTIONS
– Mini VRF System Air Conditioner –
for Refrigerant R410A
■ R410A Models
Model No.
Outdoor Units
4 hp
5 hp
6 hp
U-4LE1E5
U-4LE1E8
U-5LE1E5
U-5LE1E8
U-6LE1E5
U-6LE1E8
* Refrigerant R410A is used in the outdoor units.
hp = horsepower
Indoor Units
Indoor Unit Type
22
D1 1-Way Cassette
28
36
45
56
S-28MD1E5
S-36MD1E5
S-45MD1E5
S-56MD1E5
S-22ML1E5
S-28ML1E5
S-36ML1E5
S-45ML1E5
S-56ML1E5
U1 4-Way Cassette
S-22MU1E5
S-28MU1E5
S-36MU1E5
S-45MU1E5
S-56MU1E5
Y1 4-Way Cassette 60 × 60
S-22MY1E5
S-28MY1E5
S-36MY1E5
S-45MY1E5
S-56MY1E5
K1 Wall-Mounted
S-22MK1E5
S-28MK1E5
S-36MK1E5
S-45MK1E5
S-56MK1E5
S-36MT1E5
S-45MT1E5
S-56MT1E5
F1 Low Silhouette Ducted
S-22MF1E5
S-28MF1E5
S-36MF1E5
S-45MF1E5
S-56MF1E5
M1 Slim Low Static Ducted
S-22MM1E5
S-28MM1E5
S-36MM1E5
S-45MM1E5
S-56MM1E5
P1 Floor Standing
S-22MP1E5
S-28MP1E5
S-36MP1E5
S-45MP1E5
S-56MP1E5
R1 Concealed Floor Standing
S-22MR1E5
S-28MR1E5
S-36MR1E5
S-45MR1E5
S-56MR1E5
L1 2-Way Cassette
T1 Ceiling
E1 High Static Pressure Ducted
Indoor Unit Type
73
90
106
D1 1-Way Cassette
S-73MD1E5
L1 2-Way Cassette
S-73ML1E5
U1 4-Way Cassette
S-73MU1E5
S-106MU1E5
K1 Wall-Mounted
S-73MK1E5
S-106MK1E5
T1 Ceiling
S-73MT1E5
F1 Low Silhouette Ducted
S-73MF1E5
140
S-140MU1E5
160
S-160MU1E5
Y1 4-Way Cassette 60 × 60
S-90MF1E5
S-106MT1E5
S-140MT1E5
S-106MF1E5
S-140MF1E5
S-106ME1E5
S-140ME1E5
S-160MF1E5
M1 Slim Low Static Ducted
E1 High Static Pressure Ducted
S-73ME1E5
P1 Floor Standing
S-71MP1E5
R1 Concealed Floor Standing
S-71MR1E5
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IMPORTANT!
Please Read Before Starting
SPECIAL PRECAUTIONS
WARNING
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 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.
● 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 shortcircuit power Ssc greater than or equal to the value in
the table.
Ssc
U-4LE1E5
350 kVA
U-5LE1E5
400 kVA
•
•
•
•
•
U-6LE1E5
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.
Zmax
U-4LE1E5
0.298 Ω
U-5LE1E5
0.298 Ω
When Wiring
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.
ELCB must be incorporated in the fixed wiring.
Circuit breaker must be incorporated in the fixed wiring
in accordance with the wiring regulations.
Circuit breaker
U-4LE1E5
30 A
U-5LE1E5
40 A
U-6LE1E5
40 A
Circuit breaker
U-4LE1E8
20 A
U-5LE1E8
20 A
U-6LE1E8
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.
• To prevent possible hazards from insulation failure,
the unit must be grounded.
U-6LE1E5
0.298 Ω
When Transporting
● Pay close attention to all warning and caution notices
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.
given in this manual.
This symbol refers to a hazard or unsafe
WARNING practice which can result in severe
personal injury or death.
This symbol refers to a hazard or unsafe
CAUTION 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.
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Handle liquid refrigerant carefully as it may cause
frostbite.
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.
When Servicing
• Turn the power OFF at the main power box
(mains) before opening 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 being serviced.
…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.
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
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.
CAUTION
• Do not clean inside the indoor and
outdoor units by users. Engage
authorized dealer or specialist for
WARNING
cleaning.
• In case of malfunction of this
appliance, do not repair by yourself.
Contact the sales dealer or service
dealer for repair.
When Connecting Refrigerant Tubing
CAUTION
• 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.
WARNING
• Do not touch the air inlet or the
sharp aluminum fins of the
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.
• 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.
• 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.
Others
• 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.
CAUTION
• 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 touch the air inlet or
the sharp aluminum fins of the
outdoor unit. You may get injured.
• Do not sit or step on the unit,
you may fall down accidentally.
• Do not stick any object into
the FAN CASE.
You may be injured and the
unit may be damaged.
NOTICE
• Do not leak refrigerant while piping work for an
installation or re-installation, and while repairing
refrigeration parts.
The English text is the original instructions. Other
languages are translations of the original instructions.
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2.
Check of Density Limit
The standards for minimum room volume are as follows.
(1) No partition (shaded portion)
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.
(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).
Outdoor unit
Refrigerant tubing
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).
Indoor unit
(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.
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.
Refrigerant tubing
Total amount of refrigerant (kg)
Min. volume of the indoor unit installed room (m3)
< Density limit (kg/m3)
Outdoor unit
The density limit of refrigerant which is used in multi air
conditioners is 0.3 kg/m3 (ISO 5149).
Very
small
room
Small
room
NOTE
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.
For the amount of charge in this example:
3.
Outdoor unit
e.g., charged
amount (10 kg)
e.g., charged
amount (15 kg)
Room B
Room C
Room D
Room E
Room F
The possible amount of leaked refrigerant gas in rooms A,
B and C is 10 kg.
The possible amount of leaked refrigerant gas in rooms D,
E and F is 15 kg.
Min. indoor floor area
(when the ceiling is 2.7 m high)
Indoor unit
Room A
Large room
Medium
room
Mechanical ventilation device – Gas leak detector
m2
125
120
115
110
105
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
The minimum indoor floor space compared with the
amount of refrigerant is roughly as follows: (When the
ceiling is 2.7 m high)
Min. indoor volume
1.
Indoor unit
m3
337.5
324.0
310.5
297.0
283.5
270.0
256.0
243.0
229.5
216.0
202.5
189.0
175.5
162.0
148.5
135.0
121.5
108.0
94.5
81.0
67.5
54.0
40.5
27.0
13.5
0.0
0
Range below the
density limit of
0.3 kg/m³
(Countermeasures
not needed)
Range above the
density limit of
0.3 kg/m³
(Countermeasures
needed)
10
20
30
40
50
60
70
80
90 100 kg
Total amount of refrigerant
4
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Precautions for Installation Using New
Refrigerant
R407C
tools
New
compatible
tool?
with
R410A?
Item
1. Care regarding tubing
1-1. Process tubing
● Material: Use C1220 phosphorous deoxidized copper
specified in JIS H3300 “Copper and Copper Alloy Seamless
Pipes and Tubes”.
● Tubing size: Be sure to use the sizes indicated in the
table below.
● Use a tube cutter when cutting the tubing, and be sure to
remove any flash. This also applies to distribution joints
(optional).
Manifold
gauge
Yes
No
Types of refrigerant,
refrigerating machine oil,
and pressure gauge are
different.
Charge
hose
Yes
No
To resist higher pressure,
material must be changed.
Vacuum
pump
Yes
Yes
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
detector
Yes
No
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.
Flaring oil
Yes
No
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.
● When bending tubing, use a bending radius that is 4 times
the outer diameter of the tubing or larger.
CAUTION
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.
Unit: mm
Material
Copper
tube
O
Outer diameter
6.35
9.52
12.7 15.88 19.05
Wall thickness
0.8
0.8
0.8
1.0
1.2
1-2. 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.
Remarks
* Using tools for R22 and R407C and new tools for R410A
together can cause defects.
Manifold gauge
2. Be sure to recharge the refrigerant only in liquid form.
Vacuum pump
Outlet
Inlet
2-1. Since R410A is a non-azeotrope, recharging the refrigerant
in gas form can lower performance and cause defects of
the unit.
2-2. 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.
3. Different tools required
3-1. Tool specifications have been changed due to the
characteristics of R410A.
3-2. Use R410A exclusive cylinder only.
Some tools for R22- and R407C-type refrigerant systems
cannot be used.
Single-outlet valve
(with siphon tube)
Liquid refrigerant should be
recharged with the cylinder
standing on end as shown.
Valve
Liquid
5
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CONTENTS
Page
Page
IMPORTANT! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5. HOW TO PROCESS TUBING . . . . . . . . . . . . . . . . . . . . . 20
Please Read Before Starting
5-1.
Connecting the Refrigerant Tubing
Check of Density Limit
5-2.
Connecting Tubing Between Indoor and Outdoor
Units
5-3.
Insulating the Refrigerant Tubing
5-4.
Taping the Tubes
5-5.
Finishing the Installation
Precautions for Installation Using New Refrigerant
1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-1.
Tools Required for Installation (not supplied)
1-2.
Accessories Supplied with Outdoor Unit
1-3.
Type of Copper Tube and Insulation Material
1-4.
Additional Materials Required for Installation
1-5.
Tubing Size
1-6.
Straight Equivalent Length of Joints
1-7.
Additional Refrigerant Charge
7-1.
Preparing for Test Run
1-8.
System Limitations
7-2.
Test Run Procedure
1-9.
Tubing Length
7-3.
Outdoor Unit PCB Setting
1-10. Check of Limit Density
7-4.
Auto Address Setting
1-11. Installing Distribution Joint
7-5.
Caution for Pump Down
1-12. Optional Distribution Joint Kit
7-6.
Meaning of Alarm Messages
6. AIR PURGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
■ Air Purging with a Vacuum Pump (for Test Run) Preparation
7. TEST RUN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1-13. Example of Tubing Size Selection and Refrigerant
Charge Amount
8. MARKINGS FOR DIRECTIVE 97/23/EC (PED) . . . . . . . . 33
2. SELECTING THE INSTALLATION SITE . . . . . . . . . . . . . 11
2-1.
Outdoor Unit
2-2.
Air-Discharge Chamber for Top Discharge
2-3.
Installing the Unit in Heavy Snow Areas
2-4.
Precautions for Installation in Heavy Snow Areas
2-5.
Dimensions of Air-Discharge Chamber
2-6.
Dimensions of Snow-Proof Vents
3. HOW TO INSTALL THE OUTDOOR UNIT . . . . . . . . . . . . 16
3-1.
Installing the Outdoor Unit
3-2.
Drainage Work
3-3.
Routing the Tubing and Wiring
4. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4-1.
General Precautions on Wiring
4-2.
Recommended Wire Length and Wire Diameter for
Power Supply System
4-3.
Wiring System Diagrams
6
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1. GENERAL
1-4. Additional Materials Required for Installation
This booklet briefly outlines where and how to install the
air conditioning system. Please read over the entire set of
instructions for the indoor and outdoor units and make sure all
accessory parts listed are with the system before beginning.
1.
Refrigeration (armored) tape
2.
Insulated staples or clamps for connecting wire (See your
local codes.)
3.
Putty
1-1. Tools Required for Installation (not supplied)
4.
Refrigeration tubing lubricant
1.
Flathead screwdriver
5.
Clamps or saddles to secure refrigerant tubing
2.
Phillips head screwdriver
6.
Scale for weighing
3.
Knife or wire stripper
4.
Tape measure
5.
Carpenter’s level
6.
Sabre saw or key hole saw
1-5. Tubing Size
Table 1-2 Main Tubing Size (LA)
7.
Hacksaw
System
horsepower
8.
Core bits
Gas tubing (mm)
9.
Hammer
4 hp
5 hp
6 hp
4
5
6
ø15.88
Liquid tubing (mm)
10. Drill
Unit: mm, hp = horsepower
11. Tube cutter
Note : If the system consists of only one indoor unit with an
outdoor 6HP, the main tube of the unit (LA) should be
ø19.05. Convert ø19.05 to ø15.88 using a reducer
(field supply) close to the indoor unit and then make the
connection.
12. Tube flaring tool
13. Torque wrench
14. Adjustable wrench
15. Reamer (for deburring)
16. Hexagonal wrench (4 mm and 5 mm)
Table 1-3 Main Tubing Size After Distribution (LB, LC...)
17. Pliers
Total
capacity after
distribution
18. Cutting pliers
1-2. Accessories Supplied with Outdoor Unit
Table 1-1 (Outdoor Unit)
Tubing size
Q’ty
Part
name
ø19.05
ø9.52
Figure
U-4LE1E5 U-5LE1E5 U-6LE1E5
U-4LE1E8 U-5LE1E8 U-6LE1E8
(4 hp)
(5 hp)
(6 hp)
7.1
12.1
(2.5 hp) (4 hp)
Below kW
Over kW
–
Gas tubing
(mm)
14.0
(5 hp)
15.5
(6 hp)
7.1(2.5 hp)
ø12.7
ø15.88
Liquid
ø9.52
tubing (mm)
ø19.05
ø9.52
Unit: mm, hp = horsepower
Note : In case the total capacity of connected indoor units
exceeds the total capacity of the outdoor units, select the
main tubing size for the total capacity of the outdoor units.
Table 1-4 Indoor Unit Tubing Connection ( 1, 2... n–1)
Indoor unite type 22 28 36 45 56 73 90 106 140 160
Tube
Discharge
Assy
0
0
1
Gas tubing (mm)
ø12.7
ø15.88
Liquid tubing (mm)
ø6.35
ø9.52
Unit: mm
1-6. Straight Equivalent Length of Joints
Design the tubing system by referring to the following table for
the straight equivalent length of joints.
Plastic bar
(L=115 mm)
2
Instruction
manual
1
2
1
2
Table 1-5 Straight Equivalent Length of Joints
Gas tubing size (mm)
12.7
15.88
1
paper
hp = horsepower
1-3. Type of Copper Tube and Insulation Material
If you wish to purchase these materials separately from a local
source, you will need:
1.
Deoxidized annealed copper tube for refrigerant tubing.
2.
Foamed polyethylene insulation for copper tubes as
required to precise length of tubing. Wall thickness of the
insulation should be not less than 8 mm.
3.
Mini_VRF_eng.indd 7
0.30
0.35
0.42
45° elbow
0.23
0.26
0.32
U-shape tube bend
(R60 − 100 mm)
0.90
1.05
1.26
Trap bend
2.30
2.80
3.20
Ball value for service
Equivalent length conversion
not needed.
Equivalent length conversion
not needed.
Table 1-6 Required Copper Tubing Dimensions
Unit: mm
Material
O
Outer
6.35 9.52 12.7 15.88 19.05
diameter
Copper
tubing
Wall
0.8
0.8
0.8
1.0
1.2
thickness
CAUTION
Check local electrical codes and regulations before
obtaining wire. Also, check any specified instructions or
limitations.
90° elbow
Y-branch distribution
joint
Use insulated copper wire for field wiring. Wire size varies
with the total length of wiring. Refer to 4. ELECTRICAL
WIRING for details.
19.05
7
2011/08/26 13:45:11
Table 1-10 Ranges that Apply to Refrigerant Tubing Lengths
and to Differences in Installation Heights
1-7. Additional Refrigerant Charge
Additional refrigerant charge amount is calculated from the
liquid tubing total length as follows.
Items
Length (m)
L1
Amount of refrigerant
charge/m (g/m)
26
56
ø6.35
ø9.52
Contents
Actual
≤ 120
Max. tubing length
length
Equivalent
≤ 140
length
Difference between max.
Allowable ΔL (L2 – L3) length and min. length
≤ 40
from the No.1 distribution
tubing
joint
length
, ... n Max. length of each
≤ 30
1 2
distribution tube
Total max. tubing length
including length of each
,
...
+L1
≤ 150
1 2
n-1
distribution tube (only
narrow tubing)
When outdoor unit is
installed higher than
≤ 50
indoor
unit
H1
Allowable
When outdoor unit is
elevation
installed lower than
≤ 40
difference
indoor unit
Max. difference between
H2
≤ 15
indoor units
L = Length, H = Height
Table 1-7 Amount of Refrigerant Charge Per Meter,
According to Liquid Tubing Size
Liquid tubing size
Marks
Required amount of charge
= (Amount of refrigerant charge per meter of each size of liquid tube
× its tube length) + (...) + (...)
* Always charge accurately using a scale for weighing.
Table 1-8 Refrigerant Charge Amount at Shipment (for
outdoor unit)
4 hp
5 hp
6 hp
3.5
3.5
3.5
Unit: kg, hp = horsepower
1-8. System Limitations
WARNING
Table 1-9 System Limitations
Outdoor units
4 hp
Number of max.
6
connectable indoor units
Max. allowable indoor/
outdoor capacity ratio
5 hp
6 hp
8
9
Always check the gas density limit for the room in which the
unit is installed.
1-10. Check of Limit Density
When installing an air conditioner in a room, it is necessary to
ensure that even if the refrigerant gas accidentally leaks out, its
density does not exceed the limit level for that room.
50 – 130%
hp = horsepower
If the density could exceed the limit level, it is necessary to
provide an opening between the unit and the adjacent room,
or to install mechanical ventilation which is interlocked with the
leak detector.
1-9. Tubing Length
Select the installation location so that the length and size of
refrigerant tubing are within the allowable range shown in the
figure below.
(Total refrigerant charged amount: kg)
(Min. indoor volume where indoor unit is installed: m3)
≤ Limit density 0.3 (kg/m3)
LA
LB
LC
L1
L2
LD
Less than
400 mm
Main tube
of unit
1st branch
The limit density of refrigerant which is used in this unit is
0.3 kg/m3 (ISO 5149).
n
For
extension
L3
1
2
3
n-1
The shipped outdoor unit comes charged with the amount of
refrigerant fixed for each type, so add it to the amount that
is charged at the field. (For the refrigerant charge amount at
shipment, refer to the unit’s nameplate.)
H1
H2
Unit distribution tube
Distribution joint (CZ-P160BK2)
Ball valve (field supply)
Note: Do not use commercially available T-joints for the liquid tubing.
* Be sure to use special R410A
distribution joints (CZ-P160BK2 :
purchased separately) for outdoor
unit connections and tubing
branches.
R410A distribution joint
CZ-P160BK2 (for indoor unit)
8
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m2
125
120
115
110
105
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Min. indoor volume
Min. indoor floor area
(when the ceiling is 2.7 m high)
Minimum indoor volume & floor area relative to the amount of
refrigerant are roughly as given in the following table.
m3
337.5
324.0
310.5
297.0
283.5
270.0
256.0
243.0
229.5
216.0
202.5
189.0
175.5
162.0
148.5
135.0
121.5
108.0
94.5
81.0
67.5
54.0
40.5
27.0
13.5
0.0
0
Types of vertical trap specifications
(When using ball valve (field supply))
Main tubing
Indoor unit (more than 2 units)
(If only 1 unit is connected, a ball
valve is also needed on this side.)
Ball valve
(BV: field supply)
Range below the
density limit of 0.3 kg/m³
(Countermeasures not
needed)
Indoor unit (1)
(When not using ball valve)
Range above the
density limit of 0.3 kg/m³
(Countermeasures needed)
Main tubing
Horizontal (Each unit is
Indoor unit connected to
tubing that is either
Branch tubing is
level or is directed
directed upward.
downward.)
More than
20 cm
Indoor unit is directed downward
10
20
30
40
50
60
70
80
90 100 kg
1-12. Optional Distribution Joint Kit
Total amount of refrigerant
See the installation instructions packaged with the distribution
joint kit for the installation procedure.
CAUTION
Pay special attention to any location, such as a basement,
etc. where leaking refrigerant can accumlate, since
refrigerant gas is heavier than air.
Table 1-11
Cooling capacity
after distribution
22.4 kW or less
Model name
CZ-P160BK2
1-11. Installing Distribution Joint
Remarks
For indoor unit
CZ-P160BK2
(1) Refer to “HOW TO ATTACH DISTRIBUTION JOINT”
enclosed with the optional distribution joint kit
(CZ-P160BK2).
Use: For indoor unit (Capacity after distribution joint is 22.4 kW or less.)
Example
(2) In order to prevent accumulation of refrigerant oil in
stopped units, if the main tubing is horizontal then each
branch tubing length should be at an angle that is greater
than horizontal. If the main tubing is vertical, provide a
raised starting portion for each branch.
Gas tube
Liquid tube
110
110
97
97
C
A
B
B
D
A
Distribution
joint
D
E
C
Insulation
If a trap or ball valve (field supply) is not added, do not
operate the system before repairs to a malfunctioning unit
are completed. (The refrigerant oil sent through the tubing to
the malfunctioning unit will accumulate and may damage the
compressor.)
DE
C
72
72
Distribution joint
(3) If there are height differences between indoor units or if
branch tubing that follows a distribution joint is connected
to only 1 unit, a trap or ball valve (field supply) must be
added to that distribution joint. (When adding the ball
valve, locate it within 40 cm of the distribution joint.)
C
C
B
Insulation
Table 1-12 Size of connection point on each part
(shown are inside diameters of tubing)
Size
mm
Tube branching methods (horizontal use)
Part A
ø19.05
Part B
ø15.88
Part C
ø12.7
Part D
ø9.52
Part E
ø6.35
Unit: mm
0º
o3
t
15
B
B
A
Horizontal
A
View as seen from
line
arrow
Arrow view
9
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Example:
1-13. Example of Tubing Size Selection and
Refrigerant Charge Amount
Additional refrigerant charging
Based on the values in Tables 1-2, 1-3, 1-4 and 1-7, use the
liquid tubing size and length, and calculate the amount of
additional refrigerant charge using the formula below.
Main tube
of unit
Required additional
= [56 × (a) + 26 × (b)] × 10 –3
refrigerant charge (kg)
(a): Liquid tubing
(b): Liquid tubing
L1
L2
LA
1st branch
Unit distribution
tube
Total length of ø9.52 (m)
Total length of ø6.35 (m)
● Charging procedure
LB
LC
LN
n
1
2
3
n–1
type
22
type
28
type
36
type
56
type
45
● Example of each tubing length
Main tubing
LA = 40 m
LB = 5 m
LC = 5 m
LD = 15 m
Be sure to charge with R410A refrigerant in liquid form
1. After performing a vacuum, charge with refrigerant from
the liquid tubing side. At this time, all valves must be in the
“fully closed” position.
2. If it was not possible to charge the designated amount,
operate the system in Cooling mode while charging with
refrigerant from the gas tubing side. (This is performed at
the time of the test run. For this, all valves must be in the
“fully open” position.)
Charge with R410A refrigerant in liquid form.
With R410A refrigerant, charge while adjusting the
amount being fed a little at a time in order to prevent liquid
refrigerant from backing up.
Distribution joint tubing
Indoor side
1=5m
4=6m
2=5m
5=5m
3=2m
● Obtain charge amount for each tubing size
Note that the charge amounts per 1 meter are different for
each liquid tubing size.
ø9.52 → LA + LB + LC + LD : 65 m × 0.056 kg/m = 3.64 kg
ø6.35 → 1+ 2+ 3+ 4+ 5 : 23 m × 0.026 kg/m = 0.598 kg
Total 4.238 kg
Additional refrigerant charge amount is 4.238 kg.
● After charging is completed, turn all valves to the “fully open”
position.
CAUTION
● Replace the tubing covers as they were before.
Be sure to check the limit density for the room in which the
indoor unit is installed.
Tightening torque for 4
valve stem cap:
19 – 21 N·m
Tightening torque: 3
34 – 42 N·m
2 Tightening torque for valve
stem cap: 28 – 32 N·m
1 Tightening torque:
68 – 82 N·m
CAUTION
1. R410A additional charging absolutely must be done
through liquid charging.
2. The R410A refrigerant cylinder has a gray base color,
and the top part is pink.
3. The R410A refrigerant cylinder includes a siphon tube.
Check that the siphon tube is present. (This is indicated
on the label at the top of the cylinder.)
4. Due to differences in the refrigerant, pressure, and
refrigerant oil involved in installation, it is not possible in
some cases to use the same tools for R22 and for R410A.
10
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Checking of limit density
Exhaust fan
Density limit is determined on the basis of the size of a room
using an indoor unit of minimum capacity. For instance, when
an indoor unit is used in a room (floor area 7.43 m2 × ceiling
height 2.7 m = room volume 20.06 m3), the minimum room
volume should be 25.8 m3 (7.738 kg ÷ 0.3 kg/m3) for refrigerant
of 7.738 kg (3.5 kg + 4.238 kg). Accordingly, openings such as
louvers are required for this room.
Hot air
Heat source
Outdoor
unit
<Determination by calculation>
Fig. 2-1
Overall refrigerant charge amount for the air conditioner: kg
(Minimum room volume for indoor unit:
=
4.238 (kg) + 3.5 (kg)
= 0.39 (kg/m3)
m3)
Installation space for outdoor unit
Install the outdoor unit with a sufficient space around the
outdoor unit for operation and maintenance.
0.3 (kg/m3)
20.06 (m3)
(1) Obstructions on the left side, right side and rear side (Front
side and above the unit are opened). (Fig. 2-2)
m2
125
120
115
110
105
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Min. indoor volume
Min. indoor floor area
(when the ceiling is 2.7 m high)
Therefore, openings such as louvers are required for this room.
m3
337.5
324.0
310.5
297.0
283.5
270.0
256.0
243.0
229.5
216.0
202.5
189.0
175.5
162.0
148.5
135.0
121.5
108.0
94.5
81.0
67.5
54.0
40.5
27.0
13.5
0.0
0
A
15 cm
or more
*B
25 cm
or more
C
20 cm
or more
A
*B
Range below the
density limit of 0.3 kg/m³
(Countermeasures not
needed)
Fig. 2-2
* The outdoor units require necessary space to unscrew on
the rear side for maintenance and if a sufficient maintenance
space is provided on the rear side (40 cm), the space of over
15 cm is enough at the right side.
Range above the
density limit of 0.3 kg/m³
(Countermeasures needed)
(2) Obstructions on the front side and rear side (Left side, right
side and above the unit are opened). (Fig. 2-3)
*A
50 cm
or more
10
20
30
40
50
60
70
80
90 100 kg
B
15 cm
or more
B
Total amount of refrigerant
*A
2. SELECTING THE INSTALLATION SITE
Fig. 2-3
* For compressor replacement, 50 cm or more is required on
the front side even when using the air discharge chamber.
2-1. Outdoor Unit
(3) Obstructions on the front side and above the unit (Left
side, right side and rear side are opened). (Fig. 2-4)
AVOID:
● heat sources, exhaust fans, etc. (Fig. 2-1)
B
● damp, humid or uneven locations
A
50 cm
or more
● indoors (no-ventilation location)
DO:
● choose a place as cool as possible.
● choose a place that is well ventilated and outside air
temperature does not exceed maximum 45°C constantly.
● allow enough room around the unit for air intake/
exhaust and possible maintenance. (Figs. 2-2, 2-3, 2-4)
● use lug bolts or equal to bolt down unit, reducing vibration
and noise.
B
30 cm
or more
A
Fig. 2-4
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In case of multiple installations
2-3. Installing the Unit in Heavy Snow Areas
● Provide a solid base (concrete block, 10 × 40 cm beams or
equal), a minimum of 15 cm above ground level to reduce
humidity and protect the unit against possible water damage
and decreased service life. (Fig. 2-5)
● Use lug bolts or equal to bolt down unit, reducing vibration
and noise.
In locations with strong wind, snow-proof ducting should be
fitted and direct exposure to the wind should be avoided as
much as possible.
Air intake
■ Countermeasures against snow and wind
In regions with snow and strong wind, the following problems
may occur when the outdoor unit is not provided with a platform
and snow-proof ducting:
a) The outdoor fan may not run and damage to the unit may
occur.
b) There may be no air flow.
c) The tubing may freeze and burst.
d) The condenser pressure may drop because of strong wind,
and the indoor unit may freeze.
Air intake
Air discharge
Air discharge
Anchor bolts
(4 pieces)
2-4. Precautions for Installation in Heavy Snow Areas
(1) The platform should be higher than the max. snow depth.
(Fig. 2-7)
Min. 15cm
Fig. 2-5
2-2. Air-Discharge Chamber for Top Discharge
Be sure to install an air-discharge chamber in the field when:
● it is difficult to keep a space of min. 50 cm between the air
discharge outlet and an obstacle.
● the air discharge outlet is facing a sidewalk and discharged
hot air may annoy passers-by. Refer to Fig. 2-6.
Air discharge
Without snowproof ducting
(Low platform)
With snowproof ducting
(High platform)
Fig. 2-7
(2) The 2 anchoring feet of the outdoor unit should be used for
the platform, and the platform should be installed beneath
the air intake side of outdoor unit.
(3) The platform foundation must be firm and the unit must be
secured with anchor bolts.
(4) In case of installation on a roof subject to strong wind,
countermeasures must be taken to prevent the unit from
being blown over.
Fig. 2-6
Min. 100
Duct
In regions with significant snowfall, the outdoor unit
should be provided with a platform and snow-proof duct.
308
Outdoor Unit
Outdoor
Unit
Min. 100 166
Unit: mm
Duct
Duct
Higher than the
maximum snow depth
Air intake
Air intake
Platform (foundation)
About 1/2 of the unit height
Fig. 2-8
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2-5. Dimensions of Air-Discharge Chamber
Reference diagram for air-discharge chamber (field supply)
660
(110)
340
380
20
10
Unit: mm
Air Intake
20
20
Air Intake
170
940
568
643
(303)
340
217
(316)
566
89
56
Installation anchoring holes (4-R6.5) / Anchor bolt M10
Air
discharge
1330
Air Intake
Air
discharge
(88)
555
32
Required space around outdoor unit
If the air discharge chamber is used, the space shown below must be secured around the outdoor unit.
If the unit is used without the required space, a protective device may activate, preventing the unit from operating.
(1) Single-unit installation
Unit: mm
The top and both sides must remain open.
CAUTION If there are obstacles to the front and rear of
front or rear must be no taller than the height
Min. 150
or more
Min. 500
or more
the outdoor unit, the obstacle at either the
of the outdoor unit.
(2) Multiple-unit installation
Installation in lateral rows
Installation in front-rear rows
Installation with intakes facing
intakes or outlets facing outlets
Min. 200
or more
Min. 300 or more
Min. 250
or more
Min. 1000 or more
Min. 250
or more
Not less than 150* or more
Unit: mm
Unit: mm
NOTE
● The amount of space is required for removing the screws
on the rear of the unit. If in case the sufficient space for
maintenance is ensured on the rear of the outdoor unit,
installation is possible with the space of both sides of not less
than 150mm where marked with * mark.
CAUTION The front and both sides must remain open.
CAUTION The front and top must remain open.
The obstacles must be no taller than the height
of the outdoor unit.
13
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2-6. Dimensions of Snow-Proof Vents
Reference diagram for snow-proof vents (field supply)
Unit: mm
Air Intake
(295)
Air discharge
227
20
20
340
380
20
10
702
Mounting hole
(2-13 × 18 hole)
660
997
645
2
691
340
(303)
1209
1333
733
Air discharge
Air discharge
(124)
Air Intake
Required space around outdoor unit
[Obstacle to the rear of unit]
● Top is open:
(1) Single-unit installation
(2) Obstacles on both sides
Unit: mm
Min. A
or more
Min. D
or more
A
150
Min. B
or more
B
150
C
250*
D
200
E
250
F
150
G
200
Notes:
1. In cases 2 and 3 the height of the obstacle must be no taller
than the height of the outdoor unit.
2. The amount of space is required for removing the screw on the
rear of the unit. If in case the sufficient space for maintenance
is ensured on the rear of the outdoor unit, installation is
possible with the space of both sides of not less than 150mm
where marked with * mark.
Min. C
or more
(3) Multiple-unit installation (2 or more units)
Min. G
or more
● Top is blocked by an obstacle:
Min. E
or more
Min. E
or more
Min. K
or more
Min. E
or more
Min. F
or more
Min. L
or more
Unit: mm
K
L
500
150
14
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[Obstacle to the front of unit]
● Top is open:
● Top is blocked by an obstacle:
Unit: mm
I
J
500
250*
1000
Unit: mm
Min. N
or more
H
Min. H
or more
(1) Single-unit installation
M
N
500
300
Min. M
or more
Min. I
or more
Note:
Min. J
or more
(2) Multiple-unit installation (2 or more units)
Min. I
or more
The amount of space is required for removing the screws
on the rear of the unit.
If in case the sufficient space for maintenance is ensured
on the rear of the outdoor unit, installation is possible
with the space of both sides of not less than 150mm
where marked with * mark.
[Obstacle to the front and rear of unit]
● The top and both sides must remain open. Either the obstacle to the front or the obstacle to the rear must be no taller
than the height of the outdoor unit.
(1) Single-unit installation
Min. P
or more
Q
(2) Obstacles on both sides
Installation is possible with the maximum 3 outdoor units.
O
500
Unit: mm
P
Min. 250*
or more
Q
Min.300
or more
Min. O
or more
Min.1000
or more
Unit: mm
Min. 250*
or more
150
Note:
Dimension Q
If a snow protection duct is attached after the unit is
installed, verify that dimension Q is 500 mm or more.
The amount of space is required for removing the screws on the rear
of the unit. If in case the sufficient space for maintenance is ensured
on the rear of the outdoor unit, installation is possible with the space
of both sides of not less than 150mm where marked with * mark.
[Installation in front-rear rows]
● The top and both sides must remain open.
Either the obstacle to the front or the obstacle to
the rear must be no taller than the height of the
outdoor unit.
Unit: mm
Min. 300 or more
Min. 1500 or more
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3-3. Routing the Tubing and Wiring
3. HOW TO INSTALL THE OUTDOOR UNIT
●
3-1. Installing the Outdoor Unit
●
Use concrete or a similar material to create the base, and
ensure good drainage.
●
Ordinarily, ensure a base height of 5 cm or more. If a drain
pipe is used, or for use in cold-weather regions, ensure a
height of 15 cm or more at the feet on both sides of the unit.
(In this case, leave clearance below the unit for the drain
pipe, and to prevent freezing of drainage water in coldweather regions.)
●
Refer to Fig. 3-1 for the anchor bolt dimensions.
●
Be sure to anchor the feet with anchor bolts (M10). In
addition, use anchoring washers on the top side. (Use large
square 32 × 32 SUS washers with JIS nominal diameter of
10.) (Field supply)
940
18
Air discharge 13
Inter-unit control wiring outlet*
Inspection panel
Rear
Cover B
Cover A
Right
Front
Power wiring outlet*
20
13
(2) If the routing direction is down, use a nipper or similar tool
to cut out the lower flange from cover A.
(10)
50
13
20 20
380
219 7575
13 Air Intake
The service valves are housed inside the unit. To access
them, remove the inspection panel. (To remove the
inspection panel, remove the 3 screws, then slide the panel
downward and pull it toward you.)
(1) If the routing direction is through the front, rear, or right,
use a nipper or similar tool to cut out the knockout holes for
the inter-unit control wiring outlet, power wiring outlet, and
tubing outlet from the appropriate covers A and B.
When routing the wiring, be sure to attach each supplied
plastic bar to the edges around the wiring outlet holes in
order to protect the wiring from scratches by the cutting
burr.
4- ø32
Drain port (2 locations)
110
340
290
26
105
660
●
410
170
The tubing and wiring can be extended out in 4 directions
(front, rear, right, and down):
Down
Tubing outlet
Fig. 3-2
4- ø13 Anchor bolt hole
N OT E
1330
* When not using a conduit material or existing materials,
measure and cut the supplied plastic bar according to the size
of the wiring outlet hole. Then attach the plastic bar to the edges
around the hole. Use sealing putty to seal off the hole to prevent
the dust and insects from entering the wiring outlet holes.
CAUTION
● Route the tubing so that it does not contact the
compressor, panel, or other parts inside the unit.
Increased noise will result if the tubing contacts these
parts.
● When routing the tubing, use a tube bender to bend the
tubes.
Anchor bolt (M10)
4. ELECTRICAL WIRING
Drain port
4-1. General Precautions on Wiring
Fig. 3-1
(1) Before wiring, confirm the rated voltage of the unit as
shown on its nameplate, then carry out the wiring closely
following the wiring diagram.
3-2. Drainage Work
Follow the procedure below to ensure adequate draining for the
outdoor unit.
●
For the drain port dimensions, refer to Fig. 3-1.
●
Ensure a base height of 15 cm or more at the feet on both
sides of the unit.
●
When using a drain pipe, install the drain socket (field
supply) onto the drain port. Seal the other drain port with the
rubber cap supplied with the drain socket.
●
For details, refer to the instruction manual of the drain socket
(field supply).
●
After completing the installation work of the drain socket,
make sure that the water does not leak from any part of
connection.
(2) Provide a power outlet to be used exclusively for each
unit and a power supply disconnect, circuit breaker and
earth leakage breaker for overcurrent protection should be
provided in the exclusive line.
(3) To prevent possible hazards from insulation failure, the unit
must be grounded.
(4) Each wiring connection must be done in accordance with
the wiring system diagram. Wrong wiring may cause the
unit to disorder or become damaged.
(5) Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
(6) Unauthorized changes in the internal wiring can be very
dangerous. The manufacturer will accept no responsibility
for any damage or malfunction that occurs as a result of
such unauthorized changes.
(7) Regulations on wire diameters differ from locality to
locality. For field wiring rules, please refer to your LOCAL
ELECTRICAL CODES before beginning.
16
Mini_VRF_eng.indd 16
You must ensure that installation complies with all relevant
rules and regulations.
2011/08/26 13:45:18
(8) To prevent malfunction of the air conditioner caused by electrical noise, care must be taken when wiring as follows:
● The remote control wiring and the inter-unit control wiring should be wired apart from the inter-unit power wiring.
● Use shielded wires for inter-unit control wiring between units and ground the shield on both sides.
(9) If the power supply cord of this appliance is damaged, it must be replaced by a repair shop appointed by the manufacturer,
because special purpose tools are required.
4-2. Recommended Wire Length and Wire Diameter
for Power Supply System
Indoor unit
Type
Outdoor unit (Single-phase)
(A) Power supply
Wire size
U-4LE1E5
U-5LE1E5
U-6LE1E5
Max. length
4 mm2
6 mm2
6 mm2
21 m
24 m
20 m
K1
D1, L1, U1, Y1, T1, F1, M1,
P1, R1
E1 (73, 106, 140)
Time delay capacity
Circuit
Fuse
breaker
25 A
30 A
35 A
40 A
35 A
40 A
(A) Power supply
U-4LE1E8
U-5LE1E8
U-6LE1E8
Max. length
2.5 mm2
2.5 mm2
2.5 mm2
58 m
49 m
41 m
Max. 130 m
10 – 16 A
Max. 60 m
10 – 16 A
Control wiring
(C) Inter-unit
(between outdoor (D) Remote control (E) Control wiring for
and indoor units)
wiring
group control
control wiring
0.75 mm2 (AWG #18)
0.75 mm2 (AWG #18) 0.75 mm2 (AWG #18)
Use shielded
wiring*1
Max. 1,000 m
Max. 500 m
Max. 200 m (Total)
Outdoor unit (3-phase)
Wire size
(B) Power supply Time delay fuse or
circuit capacity
2.5 mm2
Max. 150 m
10 – 16 A
Time delay capacity
Circuit
Fuse
breaker
20 A
20 A
20 A
20 A
20 A
20 A
N OT E
*1 With ring-type wire terminal.
4-3. Wiring System Diagrams
Indoor unit
(No. 1)
L
Power supply
220 – 240V ~50/60Hz N
Ground
Remote
controller
WHT 1
BLK 2
Outdoor unit : single-phase model
L
N
B
D
Power supply
220 – 240 V, single-phase, ~ 50 Hz
C
U1
U1
U2
U2
Ground
R1
R2
1
2
In case of 3-phase power supply
Outdoor unit : 3-phase model
C
Ground
1
Indoor unit
(No. 2)
L
Power supply
220 – 240V ~50/60Hz N
2
L1
L2
L3
N
L1
L2
L3
N
B
Ground
U1
U2
D
Outdoor unit : single-phase model
R1
R2
1
2
Power supply
380 – 415 V, 3-phase, ~ 50 Hz
Ground
L
Ground
Remote
controller
WHT 1
BLK 2
Ground
Ground
2P terminal board
Outdoor unit : 3-phase model
4P terminal board
C
Indoor unit
(No. 3)
Group control:
L
Power supply
220 – 240V ~50/60Hz N
U1
U2
U1
U2
L
N
Ground
Ground
B
E
U1
L
N
U1 U2
Power supply
U2
R1
R2
Inter-unit
control wiring
L1
L2
L3
Power supply
N
U1 U2
Inter-unit
control wiring
Mini VRF System
Ground
C
N OT E
(1) Refer to Section 4-2. “Recommended Wire Length
and Wire Diameter for Power Supply System” for the
explanation of “A”, “B”, “C”, “D” and “E” in the above
diagrams.
Indoor unit
(No. n)
L
Power supply
220 – 240V ~50/60Hz N
L
N
Ground
Ground
Remote
controller
WHT 1
BLK 2
B
D
1
2
(2) The basic connection diagram of the indoor unit shows
the 7P terminal board, so the terminal boards in your
equipment may differ from the diagram.
U1
U2
R1
R2
(3) Refrigerant Circuit (R.C.) address should be set before
turning the power on.
(4) Regarding the R.C. address setting, refer to Section 7-4.
“Auto Address Setting”. Address setting can be executed
by remote controller automatically.
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CAUTION
(1) When linking outdoor units in a network, disconnect the terminal extended from the short plug (CN-TERMINAL, 2P Black,
location: right bottom on the outdoor main control PCB) from all outdoor units except any one of the outdoor units.
(When shipping: In shorted condition)
For a system without link (no connection wiring between outdoor units), do not remove the short plug.
(2) Do not install the inter-unit control wiring in a way that forms a loop. (Fig. 4-1)
Outdoor unit
Outdoor unit
Outdoor unit
Prohibited
Prohibited
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Fig. 4-1
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes mis-address setting.
Outdoor unit
NO
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Branch point
Fig. 4-2
(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.
(Branches less than 1 m are not included in the total branch number.) (Fig. 4-3)
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
more than 1 m
Branch
Point
16 or fewer
Indoor unit
Indoor unit
more than 1 m
Indoor unit
less than 1 m
Indoor unit
Fig. 4-3
(5) Use shielded wires for inter-unit control wiring (c) and
ground the shield on both side, otherwise malfunction
from noise may occur. (Fig. 4-4) Connect wiring as
shown in Section “4-3. Wiring System Diagrams”.
WARNING
Loose wiring may cause the terminal to overheat or result
in unit malfunction. A fire hazard may also occur. Therefore,
ensure that all wiring is tightly connected.
Shielded wire
Ground
When connecting each power wire to the terminal, follow the
instructions on “How to connect wiring to the terminal” and
fasten the wire securely with the fixing screw of the terminal
plate.
Ground
Fig. 4-4
(6) Use the standard power supply cables for Europe
(such as H05RN-F or H07RN-F which conform to
CENELEC (HAR) rating specifications) or use the
cables based on IEC standard. (code designation,
60245 IEC 57, 60245 IEC 66)
18
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2011/08/26 13:45:18
■ Wiring sample
Outdoor unit : single-phase model
How to connect wiring to the terminal
■ For stranded wiring
(1) Cut the wire end with cutting pliers, then strip the insulation
to expose the stranded wire about 10 mm and tightly twist
the wire ends. (Fig. 4-5)
Use this screw when
connecting to ground
for the inter-unit control
wiring.
Stranded wire
Strip 10 mm
Ring
pressure
terminal
U1
U2
Fig. 4-5
(2) Using a Phillips head screwdriver, remove the terminal
screw(s) on the terminal plate.
(3) Using a ring connector fastener or pliers, securely clamp
each stripped wire end with a ring pressure terminal.
(4) Place the ring pressure terminal, and replace and tighten
the removed terminal screw using a screwdriver. (Fig. 4-6)
Special washer
Screw
Ring pressure
terminal
Wire
Screw and
Special washer
Terminal plate
Earth
Ring
pressure
terminal
Wire
Inter-unit Control Wiring
Fig. 4-6
Power Supply
Outdoor unit : 3-phase model
■ Examples of shield wires
(1) Remove cable coat not to scratch braided shield. (Fig. 4-7)
Use this screw when
connecting to ground
for the inter-unit control
wiring.
(2) Unbraid the braided shield carefully and twist the
unbraided shield wires tightly together. Insulate the shield
wires by covering them with an insulation tube or wrapping
insulation tape around them. (Fig. 4-8)
(3) Remove coat of signal wire. (Fig. 4-9)
(4) Attach ring pressure terminals to the signal wires and the
shield wires insulated in Step (2). (Fig. 4-10)
U1
U2
Fig. 4-7
Insulation tape
Shield mesh
Fig. 4-8
m
8m
Insulation tape
Shield mesh
Fig. 4-9
Earth
Fig. 4-10
Inter-unit Control Wiring
Power Supply
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5. HOW TO PROCESS TUBING
Caution Before Connecting Tubes Tightly
Both the liquid tubing and the gas tubing sides are connected
by a flare nut.
(1) Apply a sealing cap or water-proof tape to prevent dust or
water from entering the tubes before they are used.
5-1. Connecting the Refrigerant Tubing
(2) Be sure to apply refrigerant lubricant to the matching
surfaces of the flare and union before connecting them
together. This is effective for reducing gas leaks. (Fig. 5-4)
Use of the Flaring Method
Many of conventional split system air conditioners employ the
flaring method to connect refrigerant tubes which run between
indoor and outdoor units. In this method, the copper tubes are
flared at each end and connected with flare nuts.
Apply refrigerant lubricant.
Flaring Procedure with a Flare Tool
Fig. 5-4
(1) Cut the copper tube to the required length with a tube
cutter. It is recommended to cut approx. 30 – 50 cm longer
than the tubing length you estimate.
(3) For proper connection, align the union tube and flare tube
straight with each other, then screw in the flare nut lightly
at first to obtain a smooth match. (Fig. 5-5)
(2) Remove burrs at the end of the copper tube with a tube
reamer or file. This process is important and should be
done carefully to make a good flare. (Fig. 5-1)
Deburring
Before
After
Copper
tubing
Union
Reamer
Fig. 5-1
Flare nut
Fig. 5-5
● Adjust the shape of the liquid tube using a tube bender at the
installation site and connect it to the liquid tubing side valve
using a flare.
Fig. 5-2
Cautions During Brazing
NOTE
When reaming, hold the tube end downward and be sure that
no copper scraps fall into the tube. (Fig. 5-2)
● Replace air inside the tube with nitrogen gas to prevent
copper oxide film from forming during the brazing
process. (Oxygen, carbon dioxide and Freon are not
acceptable.)
(3) Remove the flare nut from the unit and be sure to mount it
on the copper tube.
● Do not allow the tubing to get too hot during brazing.
The nitrogen gas inside the tubing may overheat,
causing refrigerant system valves to become damaged.
Therefore allow the tubing to cool when brazing.
(4) Make a flare at the end of the copper tube with a flare tool.
(Fig. 5-3)
● Use a reducing valve for the nitrogen cylinder.
● Do not use agents intended to prevent the formation
of oxide film. These agents adversely affect the
refrigerant and refrigerant oil, and may cause damage or
malfunctions.
Flare nut
Copper
tubing
Flare tool
Fig. 5-3
NOTE
A good flare should have the following characteristics:
● inside surface is glossy and smooth
● edge is smooth
● tapered sides are of uniform length
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5-2. Connecting Tubing Between Indoor and Outdoor
Units
5-3. Insulating the Refrigerant Tubing
Tubing Insulation
(1) Tightly connect the indoor-side refrigerant tubing extended
from the wall with the outdoor-side tubing.
● Standard Selection of Insulation Material
Under the environment of the high temperature and high
humidity, the surface of the insulation material is easy to
become condesation. This will result in leakage and dew
drop. Refer to the chart shown below when selecting the
insulation material. In case that the ambient temperature and
relative humidity are placed above the line of the insulation
thickness, the condensation may occasionally make a dew
drop on the surface of the insulation material. In this case,
select the better insulation efficiency.
(2) To fasten the flare nuts, apply specified torque as shown in
the table below.
● When removing the flare nuts from the tubing connections,
or when tightening them after connecting the tubing, be sure
to use 2 adjustable wrenches or spanners. (Fig. 5-6)
If the flare nuts are over-tightened, the flare may be
damaged, which could result refrigerant leakage and cause
injury or asphyxiation to room occupants.
* However, since the condition will be different due to
the sort of the insulaton material and the environmental
condition of the installation place, see the chart shown
below as a reference when making a selection.
Torque wrench
Spanner
Indoor unit
Standard Selection of Tubing Insulation
Calculating condition
● For the flare nuts at tubing connections, be sure to use the
flare nuts that were supplied with the unit, or else flare nuts
for R410A (type 2). The refrigerant tubing that is used must
be of the correct wall thickness as shown in the table below.
Tightening torque
(approximate)
Tube thickness
ø6.35 (1/4")
14 – 18 N · m
(140 – 180 kgf · cm)
0.8 mm
ø9.52 (3/8")
34 – 42 N · m
(340 – 420 kgf · cm)
0.8 mm
ø12.7 (1/2")
49 – 55 N · m
(490 – 550 kgf · cm)
0.8 mm
ø15.88 (5/8")
68 – 82 N · m
(680 – 820 kgf · cm)
1.0 mm
ø19.05 (3/4")
100 – 120 N · m
(1000 – 1200 kgf · cm)
1.2 mm
Polyethylene heat resisting
material
Thermal conductivity of
insulation material
Based on JIS A9501
Calculating formula used
when calculating thickness
Based on JIS A9501
Refrigerant temperature
2°C
100
Ambient relative humidity [%]
Tube diameter
Sort of insulation material
Because the pressure is approximately 1.6 times higher than
conventional refrigerant pressure, the use of ordinary flare nuts
(type 1) or thin-walled tubes may result in tube rupture, injury, or
asphyxiation caused by refrigerant leakage.
o6.35
100
Thickness
30 mm
Thickness
20 mm
90
80
70
Thickness
10 mm
60
50
40
10
20
30
40
50
Ambient relative humidity [%]
Fig. 5-6
Ambient relative humidity [%]
100
● In order to prevent damage to the flare caused by over-
80
70
60
tightening of the flare nuts, use the table on this page as a
guide when tightening.
● When tightening the flare nut on the liquid tube, use an
adjustable wrench with a nominal handle length of 200 mm.
Thickness
30 mm
Thickness
20 mm
70
60
Thickness
10 mm
50
40
10
20
30
40
50
Ambient temperature [°C]
Ambient relative humidity [%]
100
40
10
20
30
40
50
o15.88
90
Thickness
30 mm
Thickness
20 mm
80
70
60
Thickness
10 mm
50
40
10
20
30
40
50
Ambient temperature [°C]
o19.05
Two tubes arranged together
90
Thickness
30 mm
Thickness
20 mm
80
70
60
Liquid tubing
Gas tubing
Thickness
10 mm
50
40
10
Thickness
10 mm
50
100
80
Thickness
30 mm
Thickness
20 mm
Ambient temperature [°C]
o12.7
90
o9.52
90
Ambient temperature [°C]
Ambient relative humidity [%]
Outdoor unit
Insulation
20
30
40
50
Ambient temperature [°C]
Fig. 5-7
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CAUTION
If the exterior of the outdoor unit valves
has been finished with a square duct
covering, make sure you allow sufficient
space to use the valves and to allow the
panels to be attached and removed.
5-5. Finishing the Installation
Apply putty here
After finishing insulating and taping
over the tubing, use sealing putty to
seal off the hole in the wall to prevent
rain and draft from entering. (Fig. 5-11)
Taping the flare nuts
Tubing
Wind the white insulation tape around the flare nuts at the gas
tube connections. Then cover up the tubing connections with
the flare insulator, and fill the gap at the union with the supplied
black insulation tape. Finally, fasten the insulator at both ends
with the supplied vinyl clamps. (Fig. 5-8)
Fig. 5-11
6. AIR PURGING
Air and moisture in the refrigerant
system may have undesirable effects
as indicated below.
Sealer (supplied) Insulation tape (white)
(supplied)
Flare insulator (supplied)
Tube insulator
(not supplied)
Heat resistant
120°C or above
Unit side
insulator
Flare nut
Vinyl clamps (supplied)
Fig. 5-8
Insulation material
Refrigerant tubing and insulator (not supplied)
Drain pipe and insulator (not supplied)
Drain insulator
and clamp. Large
(supplied)
operating current rises
●
cooling (or heating) efficiency drops
●
moisture in the refrigerant circuit may
freeze and block capillary tubing
Fig. 6-1
Vacuum pump
Outlet
Inlet
Fig. 6-2
■ Air Purging with a Vacuum Pump (for Test Run)
Preparation
Check that each tube (both liquid and gas tubes) between the
indoor and outdoor units has been properly connected and all
wiring for the test run has been completed. Remove the valve
caps from both the gas tube and liquid tube service valves on
the outdoor unit. Note that both liquid and gas tube service
valves on the outdoor unit are kept closed at this stage.
(Fig. 6-3)
Insulation tape
Vinyl clamp
Flare insulator
Seal
pressure in the system rises
●
water may lead to corrosion of parts
in the refrigerant system
Therefore, the indoor unit and tubing
between the indoor and outdoor unit
must be leak tested and evacuated
to remove any noncondensables and
moisture from the system.
(Figs. 6-1 and 6-2)
After a tube has been insulated, never try
to bend it into a narrow curve because it
can cause the tube to break or crack.
Packing clamp.
Small hose band
(supplied)
●
●
The material used for insulation must have good insulation
characteristics, be easy to use, be age resistant, and must not
easily absorb moisture.
CAUTION
Manifold gauge
The procedure used for
installing the insulator
for both gas and liquid
tubes is the same.
Manifold valve
Fig. 5-9
Never grasp the drain or refrigerant connecting outlets
when moving the unit.
Pressure
gauge
5-4. Taping the Tubes
Lo
Hi
Charge hose
(1) At this time, the refrigerant tubes (and electrical wiring
if local codes permit) should be taped together with
armoring tape in 1 bundle. To prevent condensation from
overflowing the drain pan, keep the drain hose separate
from the refrigerant tubing.
Cylinder
valve
Nitrogen gas cylinder
(In vertical standing
position)
(2) Wrap the armoring tape from the bottom of the outdoor
unit to the top of the tubing where it enters the wall. As you
wrap the tubing, overlap half of each previous tape turn.
Service port ø7.94 mm
(3) Clamp the tubing bundle to the wall, using 1 clamp approx.
each meter. (Fig. 5-10)
Open
Gas tube
Close
Outdoor unit
Clamp
Insulated tubes
Open
Drain hose
Liquid tube
Close
NOTE
Fig. 5-10
Do not wind the armoring tape too tightly since this will
decrease the heat insulation effect. Also ensure that the
condensation drain hose splits away from the bundle and drips
clear of the unit and the tubing.
Mini_VRF_eng.indd 22
Fig. 6-3
22
2011/08/26 13:45:20
Leak test
Manifold valve
(1) Attach a manifold valve (with pressure gauges) and dry
nitrogen gas cylinder to this service port with charge
hoses.
Lo
CAUTION
Hi
Pressure
gauge
Use a manifold valve for air purging. If it is not available,
use a stop valve for this purpose. The “Hi” knob of the
manifold valve must always be kept closed.
(2) Pressurize the system to no more than 3.80 MPa with dry
nitrogen gas and close the cylinder valve when the gauge
reading reaches 3.80 MPa. Then, test for leaks with liquid
soap.
CAUTION
Vacuum pump
To avoid nitrogen entering the refrigerant system in a
liquid state, the top of the cylinder must be higher than
the bottom when you pressurize the system. Usually, the
cylinder is used in a vertical standing position.
Service port ø7.94 mm
(3) Do a leak test of all joints of the tubing (both indoor and
outdoor) and both gas tube and liquid tube service valves.
Bubbles indicate a leak. Wipe off the soap with a clean
cloth after the leak test.
Open
Gas tube
Close
(4) After the system is found to be free of leaks, relieve the
nitrogen pressure by loosening the charge hose connector
at the nitrogen cylinder. When the system pressure is
reduced to normal, disconnect the hose from the cylinder.
Outdoor unit
Open
Liquid tube
Close
Evacuation
Fig. 6-4
(1) Attach the charge hose end described in the preceding
steps to the vacuum pump to evacuate the tubing and
indoor unit. Confirm that the “Lo” knob of the manifold
valve is open. Then, run the vacuum pump. The operation
time for evacuation varies with the tubing length and
capacity of the pump. The following table shows the
amount of time for evacuation:
CAUTION
Use a cylinder designed for use with R410A respectively.
Required time for evacuation
when 30 gal/h vacuum pump is used
If tubing length is
less than 15 m
45 min. or more
Charging additional refrigerant
● Charging additional refrigerant (calculated from the liquid
tube length as shown in Section 1-7 “Additional Refrigerant
Charge”) using the liquid tube service valve. (Fig. 6-5)
If tubing length is
longer than 15 m
90 min. or more
● Use a balance to measure the refrigerant accurately.
NOTE
● If the additional refrigerant charge amount cannot be
charged at once, charge the remaining refrigerant in liquid
form by using the gas tube service valve with the system in
cooling operation mode at the time of test run. (Fig. 6-6)
The required time in the above table is calculated based on the
assumption that the ideal (or target) vacuum condition is less
than –101 kPa (–755 mmHg, 5 Torr).
(2) When the desired vacuum is reached, close the “Lo”
knob of the manifold valve and turn off the vacuum pump.
Confirm that the gauge pressure is under –101 kPa
(–755 mmHg, 5 Torr) after 4 to 5 minutes of vacuum pump
operation. (Fig. 6-4)
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7. TEST RUN
Manifold valve
7-1. Preparing for Test Run
Lo
● Before attempting to start the air conditioner, check the
following points.
Hi
Pressure
gauge
(1) All loose matter is removed from the cabinet especially
steel filings, bits of wire, and clips.
Valve
(2) The control wiring is correctly connected and all electrical
connections are tight.
(3) The transportation pads for the indoor fan have been
removed. If not, remove them now.
(4) The power has been supplied to the unit for at least 5
hours before starting the compressor. The bottom of
the compressor should be warm to the touch and the
crankcase heater around the feet of the compressor should
be hot to the touch. (Fig. 7-1)
Liquid
R410A
Close
ON
Gas tube
Close
(Power must be turned ON at least
5 hours before attempting test run)
Outdoor unit
Open
Liquid tube
Power mains switch
Fig. 7-1
Close
Fig. 6-5
(5) Both the gas and liquid tube service valves are open.
If not, open them now. (Fig. 7-2)
Open
Gas tube
Liquid tube service cap
Open
Gas tube service cap
Outdoor unit
Close
Fig. 7-2
Liquid tube
(6) Request that the customer be present for the test run.
Explain the contents of the instruction manual, and then
have the customer actually operate the system.
Open
Fig. 6-6
(7) Be sure to give the instruction manual and warranty
certificate to the customer.
Finishing the job
(8) When replacing the control PCB, be sure to make all the
same settings on the new PCB as were in use before
replacement.
The existing EEPROM is not changed, and is connected to
the new control PCB.
(1) With a hex wrench, turn the liquid tube service valve stem
counterclockwise to fully open the valve.
(2) Turn the gas tube service valve stem counterclockwise to
fully open the valve.
CAUTION
To avoid gas from leaking when removing the charge hose,
make sure the stem of the gas tube is turned all the way
out.
(3) Loosen the charge hose connected to the gas tube service
port (for ø 7.94 mm tube) slightly to release the pressure,
then remove the hose.
(4) Replace the service port cap on the gas tube service port
and fasten the cap securely with an adjustable wrench or
box wrench. This process is very important to prevent gas
from leaking from the system.
(5) Replace the valve caps at both gas tube and liquid tube
service valves and fasten them securely.
This completes air purging with a vacuum pump. The air
conditioner is now ready for a test run. Refer to Section
“7. TEST RUN”.
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7-2. Test Run Procedure
Items to Check Before the Test Run
1. Turn the remote power switch on at least 5 hours before the test, in order to energize the crankcase heater.
2. Turn the outdoor service valves (2 locations) to the full-open positions.
● Use caution when making the settings.
If there are duplicated system addresses, or if the settings for the Nos. of the indoor units are not consistent, an alarm will occur
and the system will not start.
● These settings are not made on the indoor unit PCB.
Recheck the items to check before the test run.
<Outdoor unit control PCB>
Unit No. setting switch
(S004)
Set the No. of indoor units.
(Check the link wiring.)
Are the inter-unit control wires
connected to more than 1 refrigerant
system?
<Outdoor unit control PCB>
Unit No. setting switch
(S002 and S003)
Set the system address.
Each system to be a unique number.
CASE 1
NO
YES
When multiple outdoor units exist, disconnect the terminals extended
Refer to Figs. 7-4, -5 from the shorted plugs (CN-TERMINAL) at all outdoor main unit PCBs
except for 1. Alternatively, move the sockets to the OPEN side.
YES
Is it possible to turn ON the power only
for the 1 refrigerant system where the
test run will be performed?
CASE 2
Turn ON the indoor and
outdoor unit power for that
refrigerant system only.
NO
Make necessary corrections.
Will automatic address setting be performed
in Heating mode?
NO
YES
CASE 3B
Is it OK to start the compressors?
Is it OK to start the compressors?
*2
Short-circuit the cooling side of the
mode change 3P pin (CN-MODE) on
the outdoor main unit PCB. At the
same time, short-circuit the automatic
address pin (CN-A.ADD) for 1 second
or longer, then pull it out. *1
*3
Turn OFF the indoor and
outdoor unit power.
Check the alarm contents.
Turn ON the indoor and
outdoor unit power.
Turn ON the indoor and
outdoor unit power.
*2
CASE 3A
Short-circuit the automatic
address pin (CN-A.ADD) on the
outdoor unit PCB for 1 second
or longer, then release it. *1
Make necessary
corrections
Turn OFF the indoor
and outdoor unit
Short-circuit the automatic address pin
(CN-A.ADD) on the outdoor unit PCB
for 1 second or longer, then release it.
LED 1 and 2 blink alternately
(about 2 or 3 minutes).
NO
Are LEDs 1 and 2 on the
outdoor unit PCB OFF?
Refer to “Table of
Self-Diagnostic Functions
and Description of Alarm
YES
Displays.”
*3
Start indoor and outdoor unit
cooling operation. LED 1 and
2 blink alternately.
Start indoor and outdoor unit
heating operation. LED 1
and 2 blink alternately.
Are LEDs 1 and 2 on the outdoor
unit PCB OFF?
Check the alarm
contents.
NO
YES
Check that test run preparation is OK.
(Do not allow the short-circuited pins to remain short-circuited.)
Set the wired remote controller for test run.
Refer to the remote
controller test-run
settings.
Does system operate?
NO
Check and make corrections according to
“Table of Self-Diagnostic Functions.”
YES
Return remote control to normal mode
*1 Use a flathead screwdriver to short-circuit the pin on the PC board.
*2 A minimum of 5 hours must have passed after the power was turned ON to
the outdoor unit.
*3 All indoor units operate in all refrigerant systems where the power is ON.
End test run.
Fig. 7-3
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7-3. Outdoor Unit PCB Setting
(for single-phase outdoor unit PCB)
S004
D303
(LED2)
CN-A.ADD
D302
(LED1)
CN-MODE
S003
S002
CN-TERMINAL
(for 3-phase outdoor unit PCB)
S004
D303
(LED2)
CN-A.ADD
D302
(LED1)
CN-MODE
S003
S002
CN-TERMINAL
Fig. 7-4
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● Examples of the No. of indoor units settings
7-4. Auto Address Setting
Indoor unit setting (S004)
(Rotary switch, gray)
No. of indoor units
1 unit (factory setting)
set to 1
2 units
set to 2
Basic wiring diagram: Example (1)
• If link wiring is not used
(The inter-unit control wires are not connected to multiple
refrigerant systems.)
Indoor unit addresses can be set without operating the
compressors.
No. 1 unit settings
System address
(system 1 setting)
1
2
(S002)
ON
(S004)
8
(S003)
ON
set to 9
9 units
No. of indoor units
(8 units setting)
OFF
● Examples of refrigerant circuit (R.C.) address settings
(required when link wiring is used)
System address
No.
System address
System address
(S003)
(S002)
(2P DIP switch, black) (Rotary switch, yellow)
Outdoor
Unit
Unit
No. 1
Both OFF
ON
ON
Inter-unit control wiring
set to 1
System 1 (factory setting)
1
2
OFF
Indoor Unit
1 ON
ON
ON
set to 1
System 11
1
2
2 ON
ON
Remote
controller
1-8
Remote controller
communication wiring
Fig. 7-6
ON
1
OFF
On the outdoor unit control PCB, check that the system
address rotary switch (S002) is set to “1” and that the DIP
switch (S003) is set to “0”.
ON
ON
1&2 ON
ON
ON
set to 0
System 30
1
1-3
(1) Automatic Address Setting from the Outdoor Unit
set to 1
2
1-2
OFF
System 21
1
1-1
2
1
OFF
2
OFF
(These are the settings at the time of factory shipment.)
2
To set the number of indoor units that are connected to the
outdoor unit to 8 on the outdoor unit control PCB, set the
No. of indoor units rotary switch (S004) to “8”.
3
Turn ON the power to the indoor and outdoor units.
4
On the outdoor unit control PCB, short-circuit the automatic
address pin (CN-A.ADD) for 1 second or longer, then
release it.
↓
(Communication for automatic address setting begins.)
↓
* To cancel, again short-circuit the automatic
address pin (CN-A.ADD) for 1 second or
longer, then pull it out.
The LED that indicates that automatic address
setting is in progress turns OFF and the
process is stopped.
5
(Automatic address setting is completed when LEDs 1 and
2 on the outdoor unit control PCB turn OFF.)
↓
Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote
controller, perform steps 1 to 3, then use the remote
controller and complete automatic address setting.
Refer to “Automatic Address Setting from the Remote
Controller.”
27
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2011/08/26 13:45:23
Basic wiring diagram: Example (2)
• If link wiring is used
<Case 2> Automatic Address Setting (no compressor
operation)
* When multiple outdoor units exist, remove the socket that is
used to short-circuit the terminal plug (CN-TERMINAL) from
all outdoor unit PCBs except for 1. Alternatively, move the
sockets to the “OPEN” side.
● Indoor and outdoor unit power can be turned ON for each
system separately.
Indoor unit addresses can be set without operating the
compressors.
Automatic Address Setting from Outdoor Unit
1
No. 1 unit settings
System address
(system 1 setting)
(S003)
ON
ON
(S004)
(S002)
ON
2
6
ON
1
No. of indoor units
(6 units setting)
On the outdoor unit control PCB, check that the system
address rotary switch (S002) is set to “1” and that the DIP
switch (S003) is set to “0”.
OFF
1
2
OFF
(These are the settings at the time of factory shipment.)
Leave the socket
that is used to
short-circuit the
terminal plug.
(CN-TERMINAL)
Unit
No. 1
Outdoor unit
system 1
2
To set the number of indoor units that are connected to the
outdoor unit to 6 on the outdoor unit control PCB, set the
No. of indoor units rotary switch (S004) to “6”.
3
At the outdoor unit where all indoor and outdoor unit power
has been turned ON, short-circuit the automatic address
pin (CN-A.ADD) for 1 second or longer, then pull it out.
↓
(Communication for automatic address setting begins.)
↓
* To cancel, again short-circuit the automatic
address pin (CN-A.ADD) for 1 second or
longer, then pull it out.
The LED that indicates automatic address
setting is in progress turns OFF and the
process is stopped.
Inter-unit control wiring
Indoor unit
1-1
1-2
1-3
Remote
controller
1-6
Remote controller
communication wiring
No. 2 unit settings
System address
(system 2 setting)
(S002)
No. of indoor units
(7 units setting)
(S003)
(S004)
ON
7
ON
1
2
4
OFF
Outdoor unit
system 2
Leave the socket
that is used to
open circuit the
terminal plug
(CN-TERMINAL).
Unit
No. 1
5
Inter-unit control wiring
To other system
link wiring
Indoor unit
Remote
controller
2-1
2-2
(Automatic address setting is completed when LEDs 1 and
2 on the outdoor unit control PCB turn OFF.)
↓
Next turn the power ON only for the indoor and outdoor
units of the next (different) system. Repeat steps 1 – 3 in
the same way to complete automatic address settings for
all systems.
↓
Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote
controller, perform steps 1 and 2, then use the remote
controller complete automatic address setting.
Refer to “Automatic Address Setting from the Remote
Controller.”
2-7
Remote controller
communication wiring
Make settings as appropriate for the cases listed below.
Indoor and outdoor unit power can be
turned ON for each system separately.
<Case 2>
Indoor and outdoor unit power cannot
be turned ON for each system separately.
Automatic address setting in Heating mode
<Case 3A>
Automatic address setting in Cooling mode
<Case 3B>
Fig. 7-7
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<Case 3A> Automatic Address Setting in Heating Mode
<Case 3B> Automatic Address Setting in Cooling Mode
● Indoor and outdoor unit power cannot be turned ON for each
system separately.
In the following, automatic setting of indoor unit addresses is
not possible if the compressors are not operating. Therefore
perform this process only after completing all refrigerant
tubing work.
● Indoor and outdoor unit power cannot be turned ON for each
system separately.
In the following, automatic setting of indoor unit addresses is
not possible if the compressors are not operating. Therefore
perform this process only after completing all refrigerant
tubing work.
Automatic address setting can be performed during Cooling
operation.
Automatic Address Setting from Outdoor Unit
1
Perform steps 1 and 2 in the same way as for <Case 2> .
2
Turn the indoor and outdoor unit power ON at all systems.
↓
To perform automatic address setting in <Heating mode>,
on the outdoor unit control PCB in the refrigerant system
where you wish to set the addresses, short-circuit the
automatic address pin (CN-A.ADD) for 1 second or longer,
then pull it out.
(Be sure to perform this process for one system at a time.
Automatic address settings cannot be performed for more
than one system at the same time.)
↓
(Communication for automatic address setting begins, the
compressors turn ON, and automatic address setting
in heating mode begins.)
(All indoor units operate.)
↓
* To cancel, again short-circuit the automatic
address pin (CN-A.ADD) for 1 second or
longer, then pull it out.
The LED that indicates automatic address
setting is in progress turns OFF and the
process is stopped.
3
4
5
Automatic Address Setting from Outdoor Unit
(Automatic address setting is completed when the
compressors stop and LEDs 1 and 2 on the outdoor unit
control PCB turn OFF.)
↓
At the outdoor unit in the next (different) system, shortcircuit the automatic address pin (CN-A.ADD) for 1 second
or longer, then pull it out.
↓
(Repeat the same steps to complete automatic address
setting for all units.)
↓
Operation from the remote controllers is now possible.
1
Perform steps 1 and 2 in the same way as for <Case 2> .
2
Turn the indoor and outdoor unit power ON at all systems.
↓
3
To perform automatic address setting in <Cooling mode>,
on the outdoor unit control PCB in the refrigerant system
where you wish to set the addresses, short-circuit the
cooling side of the mode change 3P pin (CN-MODE). At
the same time, short-circuit the automatic address pin
(CN-A.ADD) for 1 second or longer, then pull it out. (Be
sure to perform this process for one system at a time.
Automatic address settings cannot be performed for more
than one system at the same time.)
↓
(Communication for automatic address setting begins, the
compressors turn ON, and automatic address setting
in Cooling mode begins.)
(All indoor units operate.)
↓
* To cancel, again short-circuit the automatic
address pin (CN-A.ADD) for 1 second or
longer, then pull it out.
The LED that indicates automatic address
setting is in progress turns OFF and the
process is stopped.
4
* To perform automatic address setting from the remote
controller, perform steps 1 and 2, then use the remote
controller complete automatic address setting.
Refer to “Automatic Address Setting from the Remote
Controller.”
5
(Automatic address setting is completed when the
compressors stop and LEDs 1 and 2 on the outdoor unit
control PCB turn OFF.)
↓
At the outdoor unit in the next (different) system, shortcircuit the automatic address pin (CN-A.ADD) for 1 second
or longer, then pull it out.
↓
(Repeat the same steps to complete automatic address
setting for all units.)
↓
Operation from the remote controllers is now possible.
* Automatic address setting in Cooling mode cannot be
done from the remote controller.
29
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Automatic Address Setting from the Remote Controller*
Display during automatic address setting
Selecting each refrigerant system individually for automatic
address setting
●
On outdoor unit PCB
LED 2
---Automatic address setting for each system: Item code “A1”
●
1
Press the remote controller timer time
button and
button at the same time. (Press and hold for 4 seconds or
longer.)
Blink alternately
●
Next, press either the temperature setting
button.
(Check that the item code is “A1.”)
●
Use either the
or
button to set the system
No. to perform automatic address setting.
* Do not short-circuit the automatic address setting pin
(CN-A.ADD) again while automatic address setting is in
progress. Doing so will cancel the setting operation and
will cause LEDs 1 and 2 to turn OFF.
●
Then press the
button.
(Automatic address setting for one refrigerant system
begins.)
(When automatic address setting for one system is
completed, the system returns to normal stopped status.)
<Approximately 4 – 5 minutes is required.>
” is displayed
(During automatic address setting, “
on the remote controller. This message disappears when
automatic address setting is completed.)
●
or
* When automatic address setting has been successfully
completed, both LEDs 1 and 2 turn OFF.
* LED 1 is D302. LED 2 is D303.
* If automatic address setting is not completed
successfully, refer to the table below and correct the
problem. Then perform automatic address setting again.
●
Display details of LEDs 1 and 2 on the outdoor unit control
PCB
Repeat the same steps to perform automatic address setting
for each successive system.
: Blinking ● : OFF)
: ON
(
LED 1 LED 2
Display meaning
After the power is turned ON (and automatic address
setting is not in progress), no communication with the
indoor units in that system is possible.
After the power is turned ON (and automatic address
setting is not in progress), 1 or more indoor units are
confirmed in that system; however, the number of
indoor units does not match the number that was set.
●
Automatic address setting is in progress.
Alternating
●
●
Automatic address setting completed.
At time of automatic address setting, the number
of indoor units did not match the number that was
Simultaneous set. (when indoor units are operating) indication
appears on the display.
Alternating
Note:
●
Refer to Table of Self-Diagnostic Functions and
Description of Alarm Displays.
indicates that the solenoid is fused or that there is a
CT (current detection circuit) failure (current is detected
when the compressor is OFF).
Remote controller display during automatic setting
is blinking
30
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Remote Controller Test Run Settings
Request concerning recording the indoor/outdoor
unit combination Nos.
1
After automatic address setting has been completed, be sure to
record them for future reference.
appears on the LCD display while the test run is
in progress.
● The
(Outdoor) 1 – (Indoor) 1-1, 1-2, 1-3…
2
(Outdoor) 2 – (Indoor) 2-1, 2-2, 2-3…
These numbers are necessary for later maintenance. Please be
sure to indicate them.
Checking the indoor unit addresses
Use the remote controller to check the indoor unit address.
Press and hold the
button and
button for 4
seconds or longer (simple settings mode).
2
The address is displayed for the indoor unit that is
connected to the remote controller.
(Only the address of the indoor unit that is connected to
the remote controller can be checked.)
3
Press the
button again to return to normal remote
controller mode.
temperature cannot be adjusted when in Test Run
mode.
(This mode places a heavy load on the machines.
Therefore use it only when performing the test run.)
The test run can be performed using the HEAT, COOL, or
FAN operation modes.
Note: The outdoor units will not operate for approximately
3 minutes after the power is turned ON and after
operation is stopped.
3
If correct operation is not possible, a code is displayed on
the remote controller display.
(Refer to “7-6. Meaning of Alarm Messages” and correct
the problem.)
4
After the test run is completed, press the
button
again. Check that “TEST” disappears from the remote
controller display.
(To prevent continuous test runs, this remote controller
includes a timer function that cancels the test run after 60
minutes.)
* If the test run is performed using the wired remote
controller, operation is possible even if the cassette-type
ceiling panel has not been installed. (“P09” display does
not occur.)
<If 1 indoor unit is connected to 1 remote controller>
1
button for 4 seconds or
button.
● “TEST”
List the outdoor unit system address and the addresses of the
indoor units in that system in an easily visible location (next
to the nameplate), using a permanent marking pen or similar
means that cannot be erased easily.
Example:
Press the remote controller
longer. Then press the
7-5. Caution for Pump Down
Pump down means refrigerant gas in the system is returned
to the outdoor unit. Pump down is used when the unit is to be
moved, or before servicing the refrigerant circuit.
CAUTION
● This outdoor unit cannot collect more than the rated
refrigerant amount as shown by the nameplate on the
back.
● If the amount of refrigerant is more than that
recommended, do not conduct pump down. In this case,
use another refrigerant collecting system.
Number changes to indicate which
indoor unit is currently selected.
Indoor unit address
<If multiple indoor units are connected to 1 remote
controller (group control)>
1
Press and hold the
button and
button for 4
seconds or longer (simple settings mode).
2
“ALL” is displayed on the remote controller.
3
Next, press the
4
The address is displayed for 1 of the indoor units which is
connected to the remote controller. Check that the fan of
that indoor unit starts and that air is discharged.
5
Press the
button again and check the address of
each indoor unit in sequence.
6
Press the
button again to return to normal remote
controller mode.
button.
Number changes to indicate which
indoor unit is currently selected.
Indoor unit address
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7-6. Meaning of Alarm Messages
Improper setting.
Alarm messages are indicated by the blinking of LED 1 and 2
(D302, D303) on the outdoor unit PCB. They are also displayed
on the wired remote controller.
●
Viewing the LED 1 and 2 (D302 and D303) alarm displays
LED 2
Alternating
(
Serial communication errors⁄Mis-setting
LED 1
Alarm contents
Alarm display
LED 1 blinks M times, then LED 2 blinks N
times. The cycle then repeats.
M = 2: P alarm 3: H alarm 4: E alarm
5: F alarm 6: L alarm
N = Alarm No.
Example: LED 1 blinks 2 times, then
LED 2 blinks 17 times. The cycle then
repeats. Alarm is “P17”.
: Blinking)
Possible cause of malfunction
Remote controller
is detecting error
signal from indoor
unit.
Indoor unit is
detecting error
signal from main
outdoor unit.
<E01>
Error in transmitting serial
communication signal.
<E02>
During auto
address setting,
number of
connected
units does not
correspond to
number set.
When turning
on the power
supply, number
of connected
units does not
correspond to
number set.
(Except R.C.
address is “0”.)
Indoor unit
communication
error of group
control wiring.
Mini_VRF_eng.indd 32
<<E03>>
Error in receiving serial
communication signal. When
turning on the power supply,
the number of connected indoor
units does not correspond to
the number set. (Except R.C.
address is “0”.)
E04
Error of the outdoor unit in
receiving serial communication
signal from the indoor unit.
<E06>
Indoor unit address setting is
duplicated.
Remote controller address
connector (RCU. ADR) is
duplicated. (Duplication of main
remote controller)
Starting auto address setting is
prohibited.
This alarm message shows that
the auto address connector
CN-A.ADD is shorted while
other RC line is executing auto
address operation.
E08
<<E09>>
E12
Error in auto address setting.
(Number of connected indoor
units is less than the number
set)
E15
Error in auto address setting.
(Number of connected indoor
units is more than the number
set)
E16
No indoor unit is connected
during auto address setting.
E20
Main outdoor unit is detecting
error signal from sub outdoor
unit.
E24
Error of outdoor unit address
setting.
E25
The number of connected main
and sub outdoor units do not
correspond to the number set
at main outdoor unit PCB.
E26
Error of sub outdoor unit in
receiving serial communication
signal from main outdoor unit.
E29
Error of main indoor unit in
receiving serial communication
signal from sub indoor units.
This alarm message shows
when the indoor unit for
multiple-use is not connected
to the outdoor unit.
L02
Duplication of main indoor
unit address setting in group
control.
<L03>
Duplication of outdoor R.C.
address setting.
L04
There are
2 or more
indoor units
controllers
which have
operation
mode priority
in 1 refrigerant
circuit.
Protective device
in outdoor unit is
activated.
Activation of protective device
Serial communication errors⁄Mis-setting
Improper setting
of indoor unit or
remote controller.
Alarm
message
Error in receiving serial
communication signal. (Signal
from main indoor unit in case of
group control) Ex: Auto address
is not completed.
Indoor unit is detecting error signal from remote
controller (and system controller).
Alarm
message
Possible cause of malfunction
Table of Self-Diagnostics Functions and Description of
Alarm Displays
Protective device
in outdoor unit is
activated.
Priority set
remote
controller
L05
Non-priority
set remote
controller
L06
Group control wiring is
connected to individual control
indoor unit.
L07
Indoor unit address is not set.
L08
Capacity code of indoor unit is
not set.
<<L09>>
Capacity code of outdoor unit
is not set.
L10
Mis-matched connection of
outdoor units which have
different kinds of refrigerant.
L17
4-way valve operation failure
L18
Thermal protector in indoor unit
fan motor is activated.
<<P01>>
Improper wiring connections of
ceiling panel.
<<P09>>
Float switch is activated.
<<P10>>
Operation of protective function
of fan inverter
<<P12>>
Compressor thermal protector
is activated.
Power supply voltage is
unusual. (The voltage is more
than 260 V or less than 160 V
between L and N phase.)
P02
Incorrect discharge
temperature. (Comp. No. 1)
P03
Power supply circuit failure,
missing-phase detection.
P05
Forgot to open service valve
P13
O2 sensor (detects low oxygen
level) activated.
P14
Compressor running failure
resulting from missing phase
in the compressor wiring, etc.
(Start failure not caused by
IPM or no gas.)
P16
Outdoor unit fan motor is
unusual.
P22
IPM trip (IPM current or
temperature)
H31
Missing-phase/reverse-phase
in the compressor wiring,
Compressor start-up failure
(Overcurrent at time of INV
compressor starts up, etc.)
P29
continued
E18
32
2011/08/26 13:45:28
Possible cause of malfunction
Indoor thermistor
is either open or
damaged.
Thermistor fault
Indoor coil temp. sensor (E1)
<<F01>>
Indoor coil temp. sensor (E2)
<<F02>>
Indoor coil temp. sensor (E3)
<<F03>>
Indoor suction air (room) temp.
sensor (TA)
<<F10>>
Indoor discharge air temp.
sensor (BL)
<<F11>>
Outdoor
Compressor No. 1 discharge
thermistor is either gas temp. sensor (TD)
open or damaged.
Outdoor No. 1 coil gas temp.
sensor (EXG1)
Protective device for compressor is activated
Protective device
for compressor
No. 1 is activated.
Outdoor air temp. sensor (TO)
F08
Compressor intake port
temperature sensor (TS)
F12
High pressure sensor failure
F16
Low pressure sensor failure
F17
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F31
Overcurrent of power supply
current (CT) sensor
H01
PAM failure
H02
Power supply current (CT)
sensor failure (Current is not
detected at time of compressor
ON.)
H03
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㼂㼍㼞㼕㼛㼡㼟
㼂㼍㼞㼕㼛㼡㼟
㻹 㻭 㼄 㻚 㼃 㻻 㻾 㻷 㻵 㻺 㻳 㻌 㻼 㻾 㻱 㻿 㻿 㼁 㻾 㻱 㻌 㻦 㻴 㻵 㻳 㻴 㻌 㻿 㻵 㻰 㻱 ᵣᴾᵘᴾ
㻸 㻻 㼃 㻌 㻌 㻿 㻵 㻰 㻱 ᵤᴾᵘᴾ
㼗㼓
㻾 㻱 㻲 㻾 㻵 㻳 㻱 㻾 㻭 㻺 㼀 㻦 㻌 㻾 㻠 㻝 㻜 㻭 ᵥᴾᵘᴾ
㼂㼍㼞㼕㼛㼡㼟
㻺㻱㼀䚷㼃㻱㻵㻳㻴㼀䠖
㼂㼍㼞㼕㼛㼡㼟㻌㻔㻺㼛㼠㻌㼒㼛㼞㻌㼠㼔㼑㻌㻼㻱㻰㻕
㻿㻱㻾㻵㻭㻸㻌㻌㻺㻻㻚㻌㻌㻦㻌㻌㻌㻌㼂㼍㼞㼕㼛㼡㼟
Серийный номер.㻌㻦㻌 㻙 㻙 㻙 㻙 㻙 㻙 㻙
Серійний номер.㻌㻦㻌㻌㻌㻌
F29
EEPROM on the outdoor unit
PCB is a failure.
ᵟᴾᵘᴾModel Name Various
㻹㻼㼍㻌㼂㼍㼞㼕㼛㼡㼟
㻹㻼㼍㻌㼂㼍㼞㼕㼛㼡㼟
㻼㻾㻻㻰㻚㻌㻰㻭㼀㻱㻌㻌㻦 㻹㻹㻙㼅㼅㼅㼅
Дата производства : 㻹㻹㻙㼅㼅㼅㼅㻌㻌
Дата виготовлення :
THE CAPACITY, CURRENT AND POWER INPUT ARE FOR THIS UNIT CONNECTED TO THE
FOLLOWING INDOOR UNITS.
ПРОИЗВОДИТЕЛЬНОСТЬ, ТОК И ПОТРЕБЛЯЕМАЯ МОЩНОСТЬ ДАННОГО БЛОКА ПРИ
ЕГО ПОДКЛЮЧЕНИИ К СЛЕДУЮЩИМ ВНУТРЕННИМ БЛОКАМ.
ПРОДУКТИВНІСТЬ, СТРУМ ТА СПОЖИВАНА ПОТУЖНІСТЬ ДАНОГО БЛОКУ ПРИ ЙОГО
ПІДКЛЮЧЕННІ ДО НАСТУПНИХ ВНУТРІШНІХ БЛОКІВ.
4-Way Cassette, 56 type × 2 /4-сторонняя кассета, 56 тип × 2 /4-стороння касета, 56 тип × 2
FOR OTHER COMBINATIONS, REFER TO MANUAL.
ИНФОРМАЦИЮ ПО ДРУГИМ КОМБИНАЦИЯМ СМОТРИТЕ В ИНСТРУКЦИИ.
ЗА ІНФОРМАЦІЄЮ СТОСОВНО ІНШИХ КОМБІНАЦІЙ ЗВЕРТАЙТЕСЯ ДО ІНСТРУКЦІЇ.
㻼㼍㼚㼍㼟㼛㼚㼕㼏㻌㻹㼍㼞㼗㼑㼠㼕㼚㼓㻌㻱㼡㼞㼛㼜㼑㻌㻳㼙㼎㻴
㼃㼕㼚㼟㼎㼑㼞㼓㼞㼕㼚㼓㻌㻝㻡㻘㻌㻞㻞㻡㻞㻡㻌㻴㼍㼙㼎㼡㼞㼓㻘㻌㻳㼑㼞㼙㼍㼚㼥
㻭㼡㼠㼔㼛㼞㼕㼦㼑㼐㻌㼞㼑㼜㼞㼑㼟㼑㼚㼠㼍㼠㼕㼢㼑㻌㼕㼚㻌㻱㼁
㻼㼍㼚㼍㼟㼛㼚㼕㼏㻌㼀㼑㼟㼠㼕㼚㼓㻌㻯㼑㼚㼠㼞㼑
Discharge gas temperature
of the comp. No. 1 is not
detected.
Temp. sensor is not seated at
the sensor holder.
H05
Low pressure switch is
activated.
H06
Made in China
Сделано в Китае
Вироблено в Китаї
Fabricado en China
Panasonic Corporation
㻝㻜㻜㻢㻌㻷㼍㼐㼛㼙㼍㻘㻌㻷㼍㼐㼛㼙㼍㻌㻯㼕㼠㼥㻌㻻㼟㼍㼗㼍㻘㻌㻶㼍㼜㼍㼚
Tabulation of Various data
H07
A
Comp. No. 1 oil sensor
U-4LE1E5
B
H08
U-5LE1E5
U-6LE1E5
220 – 240 V ~ 50 Hz
C
4.84 kW, 21.0 A
5.64 kW, 24.5 A
6.45 kW, 28.0 A
Alarm messages displayed on system controller
D
25 A
35 A
35 A
Serial communication errors⁄
Mis-setting
Oil sensor fault.
(Disconnection,
etc)
Multi Type Air Conditioner
Кондиционер Мульти
Мульти‒Сплит
Сплит Система ᵫᶍᶂᶃᶊᴾᵬᶍᵌ
Кондиціонер Мульти
Мульти‒спліт
спліт система
F06
F07
Low oil level.
Rating nameplate figure
F04
Outdoor No. 1 coil liquid temp.
sensor (C1)
EEPROM on indoor unit PCB failure
8. MARKINGS FOR DIRECTIVE 97/23/EC
(PED)
Alarm
message
E
Error in
transmitting serial
communication
signal
Indoor or main outdoor unit is
not operating correctly.
Mis-wiring of control wiring
between indoor unil, main
outdoor unit and system
controller.
Error in
receiving serial
communication
signal
Indoor or main outdoor unit is
not operating correctly. Miswiring of control wiring between
indoor unit, main outdoor unit
and system controller.
CN1 is not connected properly.
Activation of
protective device
Protective device
of sub indoor unit
in group control is
activated.
When using wireless remote
controller or system controller,
in order to check the alarm
message in detail, connect
wired remote controller to
indoor unit temporarily.
3.80 MPa
F
C05
2.70 MPa
G
3.5 kg
A
U-4LE1E8
B
C06
3.5 kg
U-5LE1E8
U-6LE1E8
380 – 415 V ~ 50 Hz
C
5.62 kW, 8.5 A
D
20 A
6.61 kW, 10.0 A
7.94 kW, 12.0 A
20 A
20 A
E
3.80 MPa
F
2.70 MPa
G
P30
3.5 kg
3.5 kg
3.5 kg
3.5 kg
NOTE
1.
Alarm messages in << >> do not affect other indoor unit
operations.
2.
Alarm messages in < > sometimes affect other indoor unit
operations depending on the fault.
33
Mini_VRF_eng.indd 33
2011/08/26 13:45:28
Compliance with regulation 842/EC/2006 Article 7(1) requirements
EN
DO NOT VENT R410A INTO THE ATMOSPHERE: R410A IS A FLUORINATED GREENHOUSE GAS,
COVERED BY THE KYOTO PROTOCOL, WITH A GLOBAL WARMING POTENTIAL (GWP) = 1975.
Conformité aux exigences de l’article 7 (1) de la réglementation 842/EC/2006
FR
NE PAS METTRE LE R410A À L’AIR LIBRE: LE R410A EST UN GAZ À EFFET DE SERRE FLUORÉ,
RÉGULÉ PAR LE PROTOCOLE DE KYOTO AVEC UN POTENTIEL DE RÉCHAUFFEMENT DE LA PLANÈTE (GWP) = 1975.
Kompatibilität mit den Anforderungen der Vorschrift 842/EC/2006, Artikel 7 (1)
DE
R410A NICHT IN DIE AUSSENLUFT ABLASSEN: R410A IST EIN FLUORIERTES TREIBHAUSGAS, DAS IM
KYOTO-PROTOKOLL ENTHALTEN IST UND EIN ERDERWÄRMUNGSPOTENTIAL (GWP) VON 1975 AUFWEIST.
Osservanza delle richieste dell’Articolo 7(1) delle regolamentazioni 842/EC/2006
IT
NON DISPERDERE R410A NELL’ATMOSFERA: L’R410A È UN GAS FLUORATO CAUSA DI EFFETTO SERRA E
COPERTO DAL PROTOCOLLO DI KYOTO CON UN POTENZIALE DI RISCALDAMENTO GLOBALE (GWP) = 1975.
Conformidade com o regulamento 842/EC/2006 Requisitos do Artigo 7(1)
PT
NÃO DEIXE O R410A ESCAPAR PARA A ATMOSFERA: O R410A É UM GÁS FLUORADO COM EFEITO DE ESTUFA,
REGULADO PELO PROTOCOLO DE QUIOTO, COM UM POTENCIAL DE AQUECIMENTO GLOBAL (GWP) = 1975.
Συμμόρϕωση με τις απαιτήσεις του κανονισμού 842/EC/2006 Άρθρο 7(1)
GR
ΜΗΝ ΑΠΕΛΕΥΘΕΡΩΣΕΤΕ ΤΟ R410A ΣΤΗΝ ΑΤΜΟΣΦΑΙΡΑ: ΤΟ R410A ΕΙΝΑΙ ΦΘΟΡΙΟΥΧΟ ΑΕΡΙΟ ΘΕΡΜΟΚΗΠΙΟΥ ΠΟΥ
ΚΑΛΥΠΤΕΤΑΙ ΑΠΟ ΤΟ ΠΡΩΤΟΚΟΛΛΟ ΤΟΥ ΚYΟΤΟ, ΜΕ ΔΥΝΑΜΙΚΟ ΠΛΑΝΗΤΙΚΗΣ ΑΥΞΗΣΗΣ ΤΗΣ ΘΕΡΜΟΚΡΑΣΙΑΣ (GWP) = 1975.
Cumplimiento de los requisitos del Artículo 7 (1) de la Directiva 842/EC/2006
ES
NO LIBERAR R410A AL AIRE LIBRE: EL R410A ES UN GAS FLUORIZADO DE EFECTOS DE INVERNADERO,
INCLUIDO EN EL PROTOCOLO DE KYOTO, CON UN POTENCIAL DE CALENTAMIENTO GLOBAL (GWP) = 1975.
Voldoet aan de eisen van regeling 842/EC/2006 artikel 7(1)
NL
LAAT R410A NIET ONSNAPPEN IN DE DAMPKRING: R410A IS EEN FLUORHOUDEND BROEIKASGAS ZOALS
BEDOELD IN HET KYOTO PROTOCOL, MET EEN AARDOPWARMINGSVERMOGEN (GWP) = 1975.
Съответствие с изискванията на 842/EC/2006 член 7(1)
BL
НЕ ИЗПУСКТАЙТЕ R410A В АТМОСФЕРАТА: R410A Е ПАРНИКОВ ГАЗ, СЪДЪРЖАЩ ФЛУОР, ВКЛЮЧЕН В
ПРОТОКОЛА ОТ КИОТО С ПОТЕНЦИАЛ ЗА ГЛОБАЛНО ЗАТОПЛЯНЕ (GWP) = 1975.
Соответствие требованиям Статьи 7(1) правил 842/EC/2006
RU
НЕ ДОПУСКАЙТЕ ВЫБРОСОВ R410A В АТМОСФЕРУ: R410A ЯВЛЯЕТСЯ ФТОРИРОВАННЫМ ПАРНИКОВЫМ ГАЗОМ,
ОХВАТЫВАЕМЫМ КИОТСКИМ ПРОТОКОЛОМ, С ПОТЕНЦИАЛОМ ГЛОБАЛЬНОГО ПОТЕПЛЕНИЯ (GWP) = 1975.
Згідно норм 842/EC/2006 стаття 7(1)
UK
НЕ ВИПУСКАЙТЕ R410A В АТМОСФЕРУ: R410A – ФТОРОВМІСНИЙ ПАРНИКОВИЙ ГАЗ, ЩО ПІДПАДАЄ ПІД ДІЮ
КІОТСЬКОГО ПРОТОКОЛУ, З ПОТЕНЦІАЛОМ ГЛОБАЛЬНОГО ПОТЕПЛІННЯ (GWP) = 1975.
DC0611-10811
Printed in China
Mini_VRF_Cover.indd 2
2011/09/06 9:29:22
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