Fujitsu AUGB18GALH Installation Manual

TM
INSTALLATION MANUAL
INDOOR UNIT (Cassette Type)
For authorized service personnel only.
AUGB07GALH
AUGB09GALH
AUGB12GALH
AUGB14GALH
AUGB18GALH
AUGB24GALH
Refer to the rating label with the serial number.
MADE IN CHINA
PART NO. 9371022420-02
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INSTALLATION MANUAL
PART NO. 9371022420-02
VRF system indoor unit (Cassette type)
Do not attempt to install the air conditioner or a part of the air conditioner by yourself.
1.
SAFETY PRECAUTIONS ......................................................................................... 1
2.
ABOUT THIS PRODUCT.......................................................................................... 1
2.1. Precautions for using the R410A refrigerant ...................................................... 1
2.2. Special tool for R410A ....................................................................................... 1
2.3. Accessories ....................................................................................................... 2
2.4. Optional parts .................................................................................................... 2
INSTALLATION WORK ............................................................................................ 2
3.1. Selecting an installation location ....................................................................... 2
3.2. Installation dimensions ...................................................................................... 3
3.3. Discharge direction setting ................................................................................ 3
3.4. Installing the unit ................................................................................................ 3
4.
This mark indicates procedures which, if improperly performed,
might possibly result in personal harm to the user, or damage
to property.
Read carefully all security information before use or install the air conditioner.
Contents
3.
CAUTION
PIPE INSTALLATION ............................................................................................... 4
4.1. Selecting the pipe material ................................................................................ 4
4.2. Pipe requirement ............................................................................................... 4
4.3. Flare connection (pipe connection) ................................................................... 4
4.4. Installing heat insulation .................................................................................... 5
5.
INSTALLING DRAIN PIPES ..................................................................................... 5
6.
ELECTRICAL WIRING ............................................................................................. 6
6.1. Electrical requirement ........................................................................................ 7
6.2. Wiring method ................................................................................................... 7
6.3. Unit wiring .......................................................................................................... 7
6.4. Connection of wiring .......................................................................................... 8
6.5. External input and external output (Optional parts) ........................................... 9
This unit must be installed by qualified personnel with a capacity certificate for handling
refrigerant fluids. Refer to regulation and laws in use on installation place.
The installation must be carried out in compliance with regulations in force in the place
of installation and the installation instructions of the manufacturer.
This unit is part of a set constituting an air conditioner. It must not be installed alone or
with non-authorized by the manufacturer.
Always use a separate power supply line protected by a circuit breaker operating on all
wires with a distance between contact of 3mm for this unit.
The unit must be correctly earthed (grounded) and the supply line must be equipped
with a differential breaker in order to protect the persons.
The units are not explosion proof and therefore should not be installed in explosive
atmosphere.
Never touch electrical components immediately after the power supply has been turned
off. Electric shock may occur. After turning off the power, always wait 5 minutes before
touching electrical components.
This unit contains no user-serviceable parts. Always consult authorized service personnel to repairs.
When moving, consult authorized service personnel for disconnection and installation of
the unit.
2. ABOUT THIS PRODUCT
2.1. Precautions for using the R410A refrigerant
WARNING
7.
FIELD SETTING ..................................................................................................... 11
7.1. Setting the address .......................................................................................... 11
7.2. Custom code setting ........................................................................................ 12
7.3. Function setting ............................................................................................... 12
Do not introduce any substance other than the prescribed refrigerant into the
refrigeration cycle.
If air enters the refrigeration cycle, the pressure in the refrigeration cycle will become
abnormally high and cause the piping to rupture.
8.
CASSETTE GRILLE INSTALLATION ..................................................................... 13
8.1. Remove the intake grille .................................................................................. 13
8.2. Install cassette grille to indoor unit .................................................................. 14
8.3. Attach the intake grille ..................................................................................... 14
If there is a refrigerant leakage, make sure that it does not exceed the concentration
limit.
If a refrigerant leakage exceeds the concentration limit, it can lead to accidents such as
oxygen starvation.
9.
TEST RUN .............................................................................................................. 14
9.1. Test run using Outdoor unit (PCB) ................................................................... 14
9.2. Test run using Remote Controller .................................................................... 14
10. CHECK LIST........................................................................................................... 14
Do not touch refrigerant that has leaked from the refrigerant pipe connections or other
area. Touching the refrigerant directly can cause frostbite.
If a refrigerant leakage occurs during operation, immediately vacate the premises and
thoroughly ventilate the area.
If the refrigerant comes in contact with a flame, it produces a toxic gas.
11. ERROR CODES ..................................................................................................... 15
2.2. Special tool for R410A
1. SAFETY PRECAUTIONS
• Be sure to read this Manual thoroughly before installation.
• The warnings and precautions indicated in this Manual contain important information
pertaining to your safety. Be sure to observe them.
• Hand this Manual, together with the Operating Manual to the customer.
Request the customer to keep them on hand for future use, such as for relocating or
repairing the unit.
WARNING
This mark indicates procedures which, if improperly performed,
might lead to the death or serious injury of the user.
Request your dealer or a professional installer to install the unit in accordance with this
Manual.
An improperly installed unit can cause serious accidents such as water leakage, electric
shock, or fire.
If the unit is instruction in disregard of the instructions in the Installation Manual, it will
void the manufacturer’s warranty.
Do not turn ON the power until all work has been completed.
Turning ON the power before the work is completed can cause serious accidents such
as electric shock or fire.
If refrigerant leaks while work is being carried out, ventilate the area.
If the refrigerant comes in contact with a flame, it produces a toxic gas.
Installation work must be performed in accordance with national wiring standards by
authorized personnel only.
Except for EMERGENCY, never turn off main as well as sub breaker of the indoor units
during operation. It will cause compressor failure as well as water leakage. First, stop
the indoor unit by operating the control unit, converter or external input device and then
cut the breaker.
Make sure to operate through the control unit, converter or external input device.
When the breaker is designed, locate it at a place where the users cannot start and stop
in the daily work.
WARNING
To install a unit that uses the R410A refrigerant, use dedicated tools and piping materials
that have been manufactured specifically for R410A use.
Because the pressure of the R410A refrigerant is approximately 1.6 times higher than
the R22, failure to use dedicated piping material or improper installation can cause
rupture or injury.
Furthermore, it can cause serious accidents such as water leakage, electric shock, or
fire.
Tool name
Contents of change
Gauge manifold
Pressure is huge and cannot be measured with a conventional
(R22) gauge. To prevent erroneous mixing of other refrigerants,
the diameter of each port has been changed.
It is recommended to use a gauge manifold with a high
pressure display range –0.1 to 5.3 MPa and a low pressure
display range –0.1 to 3.8 MPa.
Charging hose
To increase pressure resistance, the hose material and base
size were changed.
Vacuum pump
A conventional (R22) vacuum pump can be used by installing a
vacuum pump adapter.
Be sure that the pump oil does not backflow into the system.
Use one capable for vacuum suction of –100.7 kPa (5 Torr,
–755 mmHg).
Gas leakage
detector
Special gas leakage detector for HFC refrigerant R410A.
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Cassette grille accessories
2.3. Accessories
WARNING
Name and Shape
For installation purposes, be sure to use the parts supplied by the manufacturer or other
prescribed parts.
The use of non-prescribed parts can cause serious accidents such as the unit to fall,
water leakage, electric shock, or fire.
Q’ty
Application
For covering connector
Connector cover
1
The following installation parts are furnished. Use them as required.
Keep the Installation Manual in a safe place and do not discard any other accessories
until the installation work has been completed.
Tapping screw
(M5 × 12mm)
For mounting cassette grille
4
Do not discard any accessories needed for installation until the installation work has
been completed.
Name and Shape
Q’ty
Application
For mounting connector cover
Tapping screw
(M4 × 12mm)
Operating manual
1
1
2.4. Optional parts
Installation manual
(This book)
Description
1
Cable tie (Large)
For fixing the connection pipe (Large
and Small)
External connect kit
Model
UTY-XWZXZC
UTY-XWZXZB
For control input function
(Apply voltage terminal / CNA01)
UTY-XWZXZD
For control input function
(Dry contact terminal / CNA02)
UTY-XWZXZ7
For forced thermostat off function
(Apply voltage terminal / CNA03)
UTY-XWZXZE
For forced thermostat off function
(Dry contact terminal / CNA04)
4
For transmission and remote
controller cable binding.
Cable tie (Medium)
Application
For output function
(Output terminal / CNB01)
2
Coupler heat insulation (Small)
For indoor side pipe joint (Small)
1
Coupler heat insulation (Large)
3. INSTALLATION WORK
Correct initial installation location is important because it is difficult to move unit after it is
installed.
For indoor side pipe joint (Large)
3.1. Selecting an installation location
1
WARNING
For installing indoor unit
Special nut A (Large flange)
4
CAUTION
For installing indoor unit
Special nut B (Small flange)
4
Template (Carton top)
For ceiling openings cutting
Also used as packing
1
For installing drain pipe
VP25 (O.D.32, I.D.25)
Drain hose
Select installation locations that can properly support the weight of the indoor. Install the
units securely so that they do not topple or fall.
1
Do not install the unit in the following areas:
• Area with high salt content, such as at the seaside.
It will deteriorate metal parts, causing the parts to fail or the unit to leak water.
• Area filled with mineral oil or containing a large amount of splashed oil or steam,
such as a kitchen.
It will deteriorate plastic parts, causing the parts to fail or the unit to leak water.
• Area that generates substances that adversely affect the equipment, such as
sulfuric gas, chlorine gas, acid, or alkali.
It will cause the copper pipes and brazed joints to corrode, which can cause
refrigerant leakage.
• Area that can cause combustible gas to leak, contains suspended carbon fibers or
flammable dust, or volatile inflammables such as paint thinner or gasoline.
If gas leaks and settles around the unit, it can cause a fire.
• Area where animals may urinate on the unit or ammonia may be generated.
Do not use the unit for special purposes, such as storing food, raising animals, growing
plants, or preserving precision devices or art objects.
It can degrade the quality of the preserved or stored objects.
Do not install where there is the danger of combustible gas leakage.
Do not install the unit near a source of heat, steam, or flammable gas.
Hose band
For installing drain hose
Install the indoor unit, power supply cable, transmission cable, and remote controller
cable at least 1 m away from a television or radio receivers. The purpose of this is to
prevent TV reception interference or radio noise.
(Even if they are installed more than 1 m apart, you could still receive noise under some
signal conditions.)
1
For installing drain pipe
Drain hose insulation
Install the unit where drainage does not cause any trouble.
If children under 10 years old may approach the unit, take preventive measures so that
they cannot reach the unit.
1
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Decide the mounting position with the customer as follows:
(1) Install the indoor unit on a place having a sufficient strength so that it withstands
against the weight of the indoor unit.
(2) The inlet and outlet ports should not be obstructed; the air should be able to blow all
over the room.
(3) Leave the space required to service the air conditioner.
* Select the most appropriate airflow direction from 3 or 4 directions according to the
shape of the room and the installation position.
* When changing the number of outlets, we recommend using the optional AIR OUTLET
SHUTTER PLATE KIT to close the outlet.
* For the specific closing pattern, please refer to the attached AIR OUTLET SHUTTER
PLATE KIT’S MANUAL. (Do so before installing the cassette grille as it will be installed
on the body.)
(4) A place from where the air can be distributed evenly throughout the room by the unit.
3.4. Installing the unit
(5) Install the unit where connection to the outdoor unit (or RB unit) is easy.
(6) Install the unit where the connection pipe can be easily installed.
WARNING
(7) Install the unit where the drain pipe can be easily installed.
(8) Install the unit where noise and vibrations are not amplified.
(9) Take servicing, etc., into consideration and leave the spaces. Also install the unit
where the filter can be removed.
3.2. Installation dimensions
Install the air conditioner in a location which can withstand a load of at least 5 times the
weight of the main unit and which will not amplify sound or vibration. If the installation
location is not strong enough, the indoor unit may fall and cause injuries.
If the job is done with the panel frame only, there is a risk that the unit will come loose.
Please take care.
When fastening the hangers, make the bolt positions uniform.
• Leave the space specified in Fig. A so that the air from the blower will cover the entire
room.
Perform final tightening by tightening the double nut firmly. The product may fall if not
installed properly.
• Install the indoor unit on a place having a sufficient strength so that it withstands
against the weight of the indoor unit.
Using a level, or vinyl hose filled with water, fine adjust so that the body is level.
Install the air conditioner as follows.
• A place from where drainage can be extracted outdoors easily.
Indoor unit installation
WARNING
Never install in a room where there is the potential of leaking flammable gas. A spark
could ignite the gas and cause an explosion or fire.
Avoid installing in a location with high temperature.
Fig. A
Strong and durable ceiling
(1)
(2)
(3)
(4)
(5)
(6)
Make the holes for installing in the ceiling (Fig. D).
Install the hanging bolts (M10), refer to the position in Fig. C.
Install special nut A, then special nut B onto the hanging bolt (Fig. D).
Raise the body and mount its hooks onto the hanging bolt between the special nuts.
Turn special nut B to adjust the height of the body.
Be sure to leave service access for future service at the designated position.
Fig. C
530 mm (Hanging bolt position)
High Ceiling
mode
AUGB07
AUGB09
AUGB12
AUGB14
AUGB18
AUGB24
2,700
2,700
2,700
2,700
2,700
2,700
-
-
3,000
3,000
3,000
3,000
* Be sure to make the function settings with the remote controller according to the
installed ceiling height.
150 to 200 mm
Standard mode
H (mm)
135 mm
Min. 450 mm
H: Maximum height from floor to ceiling
700 mm (Cassette grille)
75 mm
Obstruction
580 to 660 mm (Ceiling openings)
1,000 mm or
more
Floor
Model name
540 mm (Hanging bolt position)
570 mm (Indoor unit)
1,800 mm to H
1,000 mm or
more
262 mm
or more
250 mm
Service access
3.3. Discharge direction setting
• The discharge direction can be selected as shown below.
Min. 450 mm
Fig. B
100 mm or more
123 mm
Control box
Gas pipe
Liquid pipe
58 mm
Ceiling
262 mm
99 mm
30 mm
40 mm
30 mm
(3 directions)
Piping position
Drain pipe (O.D. ø25.4)
102 mm
146 mm
(4 directions)
245 mm
40 mm
Fig. D
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Special nut A
CAUTION
30 mm or more
Hook
After installing the body,
tighten the nuts.
Indoor unit
Special nut B
Hanging bolt
Ceiling
19 mm
Leveling
• Using a level, or vinyl hose filled with water, fine adjust so that the body is level.
• Inclined installation so as the drain pipe side is higher may cause a malfunction of the
float switch, and may cause water leakage.
Drain pipe
Install heat insulation around both the gas and liquid pipes. Failure to do so may cause
water leaks.
Use heat insulation with heat resistance above 120 °C. (Reverse cycle model only)
In addition, if the humidity level at the installation location of the refrigerant piping is
expected to exceed 70 %, install heat insulation around the refrigerant piping. If the
expected humidity level is 70 to 80 %, use heat insulation that is 15 mm or thicker and
if the expected humidity exceeds 80 %, use heat insulation that is 20 mm or thicker. If
heat insulation is used that is not as thick as specified, condensation may form on the
surface of the insulation. In addition, use heat insulation with heat conductivity of 0.045
W/(m·K) or less (at 20 °C).
4.3. Flare connection (pipe connection)
WARNING
Tighten the flare nuts with a torque wrench using the specified tightening method.
Otherwise, the flare nuts could break after a prolonged period, causing refrigerant to
leak and generate hazardous gas if the refrigerant comes into contact with a flame.
4.3.1. Flaring
Vinyl hoses
Use special flare tool exclusive for R410A.
(1) Cut the connection pipe to the necessary length with a pipe cutter.
(2) Hold the pipe downward so that cuttings will not enter the pipe and remove any burrs.
(3) Insert the flare nut (always use the flare nut attached to the indoor and outdoor units (or
RB unit) respectively) onto the pipe and perform the flare processing with a flare tool. Use
the special R410A flare tool. Leakage of refrigerant may result if other flare nuts are used.
(4) Protect the pipes by pinching them or with tape to prevent dust, dirt, or water from
entering the pipes.
4. PIPE INSTALLATION
CAUTION
Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with
refrigerant R410A models. Also, when storing the piping, securely seal the openings by
pinching, taping, etc.
While welding the pipes, be sure to blow dry nitrogen gas through them.
B
Check if [L] is flared uniformly and
is not cracked or scratched.
Die
A
4.1. Selecting the pipe material
Pipe
CAUTION
Do not use existing pipes from another refrigeration system or refrigerant.
Use pipes that have clean external and internal sides without any contamination which
may cause trouble during use, such as sulfur, oxide, dust, cutting waste, oil, or water.
It is necessary to use seamless copper pipes.
Material : Phosphor deoxidized seamless copper pipes
It is desirable that the amount of residual oil is less than 40 mg/10 m.
Do not use copper pipes that have a collapsed, deformed, or discolored portion
(especially on the interior surface). Otherwise, the expansion valve or capillary tube may
become blocked with contaminants.
Improper pipe selection will degrade performance. As an air conditioner using R410A
incurs pressure higher than when using conventional (R22) refrigerant, it is necessary to
choose adequate materials.
• Thicknesses of copper pipes used with R410A are as shown in the table.
• Never use copper pipes thinner than those indicated in the table even if they are
available on the market.
Pipe outside diameter
[mm (in)]
Dimension A [mm]
Flare tool for R410A,
clutch type
0
Dimension B-0.4
[mm]
6.35 (1/4)
9.1
9.52 (3/8)
13.2
12.70 (1/2)
0 to 0.5
16.6
15.88 (5/8)
19.7
19.05 (3/4)
24.0
When using conventional (R22) flare tools to flare R410A pipes, the dimension A should
be approximately 0.5 mm more than indicated in the table (for flaring with R410A flare
tools) to achieve the specified flaring. Use a thickness gauge to measure the dimension A.
It is recommended that a R410A flaring tool is used.
Width across
flats
Thicknesses of Annealed Copper Pipes (R410A)
Pipe outside diameter
[mm (in)]
Width across flats of
Flare nut [mm]
6.35 (1/4)
17
9.52 (3/8)
22
Pipe outside diameter [mm (in)]
Thickness [mm]
12.70 (1/2)
26
6.35 (1/4)
0.80
15.88 (5/8)
29
9.52 (3/8)
0.80
19.05 (3/4)
36
12.70 (1/2)
0.80
15.88 (5/8)
1.00
19.05 (3/4)
1.20
4.2. Pipe requirement
4.3.2. Bending pipes
• If pipes are shaped by hand, be careful not to collapse them.
• Do not bend the pipes in an angle more than 90°.
• When pipes are repeatedly bend or stretched, the material will harden, making it
difficult to bend or stretch them any more.
• Do not bend or stretch the pipes more than 3 times.
CAUTION
CAUTION
Refer to the installation manual for the outdoor unit for description of allowable pipe
length and height difference.
To prevent breaking of the pipe, avoid sharp bends.
If the pipe is bent repeatedly at the same place, it will break.
Use pipe with water-resistant heat insulation.
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4.3.3. Pipe connection
When the flare nut is tightened properly by your hand, hold the body side coupling with
a separate spanner, then tighten with a torque wrench. (See the table below for the flare
nut tightening torques.)
5. INSTALLING DRAIN PIPES
WARNING
Do not insert the drain piping into the sewer where sulfurous gas occurs. (Heat
exchange erosion may occur)
CAUTION
Hold the torque wrench at its grip, keeping it at a right angle with the pipe, in order to
tighten the flare nut correctly.
Tighten with 2 wrenches.
Insulate the parts properly so that water will not drip from the connection parts.
Check for proper drainage after the construction by using the visible portion of
transparent drain port and the drain piping final outlet on the body.
Holding wrench
Flare nut
Torque wrench
Indoor unit pipe
(Body side)
Connection pipe
CAUTION
Do not apply adhesive agent on the drain port of the body. (Use the attached drain hose
and connect the drain piping)
• Install the drain pipe with downward gradient (1/100 to 1/50) and so there are no rises
or traps in the pipe. Unsmooth draining caused by accumulated water flow in the pipe
may cause clogged drain.
• Use general hard polyvinyl chloride pipe (VP25) [outside diameter 32 mm].
• When the pipe is long, install supporters.
• Do not perform air bleeding. Drainage may be blown out.
Flare nut [mm (in)]
Tightening torque [N·m (kgf·cm)]
6.35 (1/4) dia.
16 to 18 (160 to 180)
9.52 (3/8) dia.
32 to 42 (320 to 420)
12.70 (1/2) dia.
49 to 61 (490 to 610)
15.88 (5/8) dia.
63 to 75 (630 to 750)
19.05 (3/4) dia.
90 to 110 (900 to 1,100)
• Always heat insulate the indoor side of the drain pipe.
• If it is impossible to have sufficient gradient of pipe, perform drain lift-up.
Pipe size
Drain pipe
VP25 (O.D. 32 mm)
1.5 to 2 m
Hanging fittings
4.4. Installing heat insulation
Install the heat insulation material after performing a refrigerant leak check (see the Installation Manual for the outdoor unit for details).
Coupler heat insulation
• Insulate by the coupler heat insulation (Accessories) around the gas pipe and liquid
pipe of indoor side.
• After installing the coupler heat insulation, wrap both end with vinyl tape so that there
is no gap.
VP25 (O.D. 32 mm)
Downward gradient 1/100 to 1/50
PROHIBITED:
• After affixing the coupler heat insulation, secure it with 2 cable ties (large), one on
each end of the insulation.
• Make sure that the cable ties overlap the heat insulation pipe.
Coupler heat insulation
(Accessories)
Cover this portion with
heat insulation.
Rise
Trap
Air bleeding
When lifting up drain:
• Height of inclined pipe should be less than 700 mm from the ceiling. A rise dimension
over this range will cause leakage.
• Lift up the pipe vertically at the position of 300 mm or less from the unit.
300 mm or less
Downward gradient
1/100 to 1/50
VP25 (O.D. 32 mm)
local arrangement
700 mm or less
Heat insulation
Heat insulation
Horizontal or
upward gradient
Cable tie (Large)
(Accessories)
CAUTION
After checking for gas leaks (refer to the Installation Manual of the outdoor unit), perform
this section.
700 mm or less
VP30 (O.D. 38 mm) or more
Downward gradient 1/100 to 1/50
Install heat insulation around both the large (gas) and small (liquid) pipes. Failure to do
so may cause water leaks.
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Working procedure
(1) Install the attached drain hose to the drain port of the body. Install the hose band
from the top of the hose within the graphic display area.
(2) Use vinyl adhesive agent to glue the drain piping (PVC pipe VP25) which is prepared
on site or elbow socket.
(Apply color adhesive agent evenly until the gauge line and seal)
(3) Check the drainage. (See separate diagram)
(4) Install the heat insulation.
(5) Use the attached heat insulation to insulate the drain port and band parts of the
body.
Install the knob
faces upward
Locally arranged
vinyl pipe
Attached hose band
(Accessories)
Attached drain hose
(Accessories)
Attached heat insulation
(Accessories)
6. ELECTRICAL WIRING
WARNING
Electrical work must be performed in accordance with this Manual by a person certified
under the national or regional regulations. Be sure to use a dedicated circuit for the unit.
An insufficient power supply circuit or improperly performed electrical work can cause
serious accidents such as electric shock or fire.
Before starting work, check that power is not being supplied to the all units.
For wiring, use the prescribed type of cables, connect them securely, making sure that
there are no external forces of the cables applied to the terminal connections.
Improperly connected or secured cables can cause serious accidents such as
overheating the terminals, electric shock, or fire.
Securely install the electrical box cover on the unit.
An improperly installed electrical box cover can cause serious accidents such as electric
shock or fire through exposure to dust or water.
Install sleeves into any holes made in the walls for wiring. Otherwise, a short circuit
could result.
Use the included connection cables and power cables or ones specified by the
manufacturer. Improper connections, insufficient insulation, or exceeding the allowable
current can cause electric shock or fire.
Do not modify the power cables, use extension cables, or use any branches in the
wiring. Improper connections, insufficient insulation, or exceeding the allowable current
can cause electric shock or fire.
Match the terminal block numbers and connection cable colors with those of the outdoor
unit (or RB unit). Erroneous wiring may cause burning of the electric parts.
Securely connect the connection cables to the terminal board. In addition, secure the
cables with wiring holders. Improper connections, either in the wiring or at the ends of
the wiring, can cause a malfunction, electric shock, or fire.
Always fasten the outside covering of the connection cable with the cable clamp. (If the
insulator is chafed, electric discharge may occur.)
(a) Top view
Install an earth leakage breaker. In addition, install the earth leakage breaker so that the
entire AC main power supply is cut off at the same time. Otherwise, electric shock or fire
could result.
(b) Side view
5 to 10 mm
Drain hose
Hose band
35 mm
Always connect the earth (ground) cable.
Improper earthing (grounding) work can cause electric shocks.
Applying area
of adhesive
Install the remote controller cables so as not to be direct touched with your hand.
Perform wiring work in accordance with standards so that the air conditioner can be
operated safely and positively.
Gauge line
Connect the connection cable firmly to the terminal board. Imperfect installation may
cause a fire.
20 mm
Drain
hose
20 mm
Transparent
visible portion
If the supply cable is damaged, it must be replaced by the manufacturer, its service
agent or similarly qualified persons in order to avoid a hazard.
4 mm or less
CAUTION
(c) Hose opening view
(d) Top view
Earth (Ground) the unit.
Do not connect the earth (ground) cable to a gas pipe, water pipe, lightning rod, or a
telephone earth (ground) cable.
Improper earthing (grounding) may cause electric shock.
Wind the attached heat insulation
around the hose band
Make sure the
alignment is on top
Do not connect power supply cables to the transmission or remote controller terminals,
as this will damage the product.
Make sure there
are no gaps
NOTE: Check for drainage
Pour about 1 liter of water from the position shown in the diagram or from the airflow
outlet to the dew tray. Check for any abnormalities such as strange noises and whether
the drain pump functions normally.
Never bundle the power supply cable and transmission cable, remote control cable
together.
Separate these cable by 50 mm or more.
Bundling these cables together will cause miss operation or breakdown.
When handling PCB, static electricity charged in the body may cause malfunction of the
PCB. Follow the cautions below:
• Establish an earth (ground) for the indoor and outdoor units and peripheral
devices.
• Cut power (breaker) off.
• Touch metal part of the indoor units for more than 10 seconds to discharge static
electricity charged in the body.
• Do not touch terminals of parts and patterns implemented on PCB.
Drain pipe
Wire cover
Watering pot
Screw
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6.1. Electrical requirement
6.2. Wiring method
Example
Voltage rating
230 V
Operating range
198 to 264 V (50 Hz)
198 to 253 V (60 Hz)
Outdoor unit or RB unit *1
Transmission
• Select the power cable type and size in accordance with relevant local and national
regulations.
• Specifications for local wiring power cord and branch wiring are in compliance with local code.
• Max. wire length: Set a length so that the voltage drop is less than 2%. Increase the wire
diameter when the wire length is long.
Breaker should be installed at every refrigerant system. Do not use a breaker in a different
refrigerant system.
Refer to the table for the breaker specifications of each installation condition. Perform
the power crossover wiring within the range of the same refrigerant system. When the
crossover wiring is done, make a connection for indoor units to satisfy conditions A and B
below.
A. Current breaker requirements
Model
Indoor unit
Transmission
AUGB07GALH
0.20 A
AUGB09GALH
0.20 A
AUGB12GALH
0.24 A
AUGB14GALH
0.29 A
AUGB18GALH
0.30 A
AUGB24GALH
0.75 A
Indoor unit
*2
*3
Remote controller
(Slave)
Remote controller
(Master)
*3
Breaker
Breaker
MFA
20 A
*2
Breaker
Power supply
MCA
Remote controller
*1: When connecting to the Heat Recovery System, refer to the installation manual of the
RB unit.
*2: Earth (Ground) the remote controller if it has an earth (ground) cable.
*3: When connecting the 2-wire type remote controller, Y3 is not used.
(Crossover wiring of power supply)
Indoor unit
MCA: Minimum Circuit Ampacity
MFA: Maximum Fuse Ampacity
When the power crossover wiring is done, make it so that the total of the MCA of the
connected RB units and indoor units does not exceed the 15 A. For RB unit MCA, refer to
the RB unit installation manual.
If the capacity of connected RB units and indoor units exceeds the upper limit, either add
breakers or use a breaker with a greater capacity.
Power supply
Indoor unit
Power supply
Indoor unit
Power supply
Pull box
Breaker
Pull box
Power supply
B. Earth leakage breaker requirements
Breaker capacity
* Maximum connectable “indoor units” or
“indoor units + RB units”
30 mA, 0.1 sec or less
44 or less
100 mA, 0.1 sec or less
45 to 148 **
6.1.1. Cable specifications
Cable type
6.3. Unit wiring
Before attaching the cable to terminal block.
* Heat pump type: indoor units, Heat recovery type: indoor units and RB units.
** If the 100 mA capacity breaker is not provided, split the quantity of the indoor units into
small groups of 44 units or less and provide a breaker with capacity of 30 mA for each
group.
Recommended
cable size (mm2)
*2
Power supply
Indoor unit
Remote
control
*3
Remark
Power supply
cable
2.5
Type245 IEC57 or
equivalent
2 Cable + earth
(ground)
Transmission
cable
0.33
LONWORKS
compatible cable
22 AWG LEVEL 4
(NEMA) non-polar 2
core, twisted pair solid
core diameter 0.65 mm
Remote
controller cable
(2-wire type)
0.33 to 1.25
Sheathed PVC
cable*
Non-polar 2 core,
twisted pair
Remote
controller cable
(3-wire type)
0.33
Sheathed PVC
cable*
Polar 3 core
*: Use shielded cable in accordance with local rules for remote controller cable.
6.3.1. Power supply cable
Adjust the length of power supply cable to avoid excessive tension with referring figure
below.
20 mm
Earth (Ground)
cable
50 mm
A. For solid core wiring
(1) To connect the electrical terminal, follow the below diagram and connect after
looping it around the end of the cable.
(2) Use the specified cables, connect them securely, and fasten them so that there is no
stress placed on the terminals.
(3) Use an appropriate screwdriver to tighten the terminal screws.
Do not use a screwdriver that is too small, otherwise, the screw heads may be
damaged and prevent the screws from being properly tightened.
(4) Do not tighten the terminal screws too much, otherwise, the screws may break.
(5) See the table for the terminal screw tightening torques.
(6) Do not fix 2 or more power supply cables with 1 screw.
Strip 25 mm
Loop
Cable
Screw with
special washer
Screw with
special washer
Cable end (Loop)
Cable end (Loop)
Terminal block
Cable
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Tightening torque
WARNING
When using solid core cables, do not use the ring terminal. If you use the solid core
cables with the ring terminal, the ring terminal's pressure bonding may malfunction and
cause the cables to abnormally heat up.
M3 screw (Transmission /X1, X2)
(Remote controller /Y1, Y2, Y3)
B. For strand wiring
(1) Use ring terminals with insulating sleeves as shown in the figure below to connect to
the terminal block.
(2) Securely clamp the ring terminals to the cables using an appropriate tool so that the
cables do not come loose.
(3) Use the specified cables, connect them securely, and fasten them so that there is no
stress placed on the terminals.
(4) Use an appropriate screwdriver to tighten the terminal screws.
Do not use a screwdriver that is too small, otherwise, the screw heads may be
damaged and prevent the screws from being properly tightened.
(5) Do not tighten the terminal screws too much, otherwise, the screws may break.
(6) See the table for the terminal screw tightening torques.
(7) Do not fix 2 or more power supply cables with 1 screw.
CAUTION
To peel the sheath from the lead cable, use a dedicated tool that will not damage the
conductor cable.
When installing a screw on the terminal block, do not cut the wire by overtightening the
screw. On the other hand, an undertightened screw can cause faulty contact, which will
lead to a communication failure.
6.4. Connection of wiring
(1) Remove the control box cover and install each connection cable.
Screw
Ring terminal
Strip 10 mm
0.5 to 0.6 N•m (5 to 6 kgf•cm)
Control box cover
Sleeve
Screw with
special washer
Screw with
special washer
Cable
Ring terminal
Ring terminal
Terminal block
Cable
WARNING
Use ring terminals and tighten the terminal screws to the specified torques, otherwise,
abnormal overheating may be occurred and possibly cause serious damage inside the
unit.
Tightening torque
(2) Connect the connection cable, with the cable tie.
M4 screw (Power supply /L, N, GND)
1.2 to 1.8 N•m (12 to 18 kgf•cm)
6.3.2. Transmission and Remote controller cable
Transmission cable
Shield cable (no film)
CAUTION
When switching the DIP switch (SW1), be sure to turn off the power supply to the
indoor unit. Otherwise, the PC board of the indoor unit may be damaged.
30 mm
40 mm
Remote controller cable
For 3-wire type
For 2-wire type
30 mm
30 mm
• Connect remote controller and transmission cables as shown in Fig. C.
Fig. C
GOOD
PROHIBITED
Different diameter
Connect to 1 side
WARNING
Tighten the terminal screws to the specified torques, otherwise, abnormal overheating
may be occurred and possibly cause serious damage inside the unit.
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Input select
Use either one of these types of terminal according to the application. (Both types of terminals cannot be used simultaneously.)
2WIRE
Y1,Y2,Y3: Remote
controller cable
Cable tie (Medium)
(Accessories)
X1, X2:
Transmission cable
For 2-wire type
For 3-wire type
Connect the remote
controller cable
Y1: Non-polar
Y2: Non-polar
Y3: Do not connect *1
Y1: Red
Y2: White
Y3: Black
Set the DIP switch (SW1)
2WIRE (Factory setting)
3WIRE
● Apply voltage terminal ([CNA01], [CNA03])
When a power supply must be provided at the input device you want to connect, use the
Apply voltage terminal ([CNA01], [CNA03]).
DC power supply *1
12 to 24V
Input
device 1
DIP switch (SW1)
Load resistance
*a
Input
device 2
SW1
Load resistance
*a
Input
device 3
3WIRE
Load resistance
*a
P.C.B
CNA01
*b
*1: If you connect the remote controller cable to the terminal Y3, 2-wire type
remote controller does not work.
CNA03
connected unit
*1 Make the power supply DC12 to 24V. Select a power supply capacity with an ample surplus for the connected load.
Do not impress a voltage exceeding 24V across pins 1-2, and 1-3.
*a The allowable current is DC 5mA to 10mA. (Recommended: DC5mA)
Provide a load resistance such that the current becomes DC10mA or less.
Select very low current use contacts (usable at DC12V, DC1mA or less).
*b The polarity is [+] for pin 1 and [-] for pin 2 and 3. Connect correctly.
When connected to Apply voltage terminals of multiple indoor units with a connected unit,
be sure to make a branch outside the indoor unit using a pull box, etc. as shown on below
example.
CNA01
(3) Install control box cover.
CAUTION
Do not bundle the remote controller cable, or wire the remote controller cable in
parallel, with the indoor unit connection cable (to the outdoor unit) and the power
supply cable. It may cause erroneous operation.
P.C.B
CNA01
P.C.B
connected unit
CNA01
6.5. External input and external output (Optional parts)
Indoor unit
Load resistance
P.C.B
Indoor unit
Input
device 1
Load resistance
Input
device 2
DC power supply
12 to 24V
L, N:
Power supply cable
Indoor unit
Cable clamp
Controller PCB
DIP switch
(SET 2)
ON
Output terminal
(CNB01)
OFF
SW4
SW3
SW2
SW1
Apply voltage terminal
● Dry contact terminal ([CNA02], [CNA04])
When a power supply is unnecessary at the input device you want to connect, use the Dry
contact terminal ([CNA02], [CNA04]).
P.C.B
(CNA01)
(CNA03)
Dry contact terminal
(CNA04)
*c
Ch 1
*c
Ch 2
(CNA02)
(1) External input
• Indoor unit can be Operation/Stop, Emergency stop or Forced stop by using indoor unit
PCB CNA01 or CNA02.
• “Operation/Stop” mode, “Emergency stop” mode or “Forced stop” mode can be selected
with function setting of indoor unit.
• Indoor unit can be Forced thermostat off by using indoor unit PCB CNA03 or CNA04.
• A twisted pair cable (22 AWG) should be used. Maximum length of cable is 150 m.
• Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed.
• The wire connection should be separate from the power cable line.
*c
Ch 3
CNA02
GND
*d
CNA04
connected unit
*c Select very low current use contacts (usable at DC12V, DC1mA or less).
*d The wiring is different from Apply voltage terminals. Be sufficiently careful when wiring.
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When connected to Dry contact terminals of multiple indoor units with a connected unit,
insulate each indoor unit with relay, etc. as shown on below example.
● When function setting is “Forced stop” mode.
[In the case of “Edge” input]
Connector
Indoor unit
K1
K4
CNA02
Command
CNA02
K3
ON → OFF
Normal
[In the case of “Pulse” input]
Input signal
Command
Ch1
OFF → ON
Forced stop
Ch2
OFF → ON
Normal
CNA01 or CNA02
* When the forced stop is triggered, indoor unit stops and Operation/Stop operation by a
remote controller is restricted.
P.C.B
Input device 1
Forced stop
Connector
Indoor unit
K5
OFF → ON
Ch1 of CNA01 or CNA02
P.C.B
K2
K6
CNA02
Input device 2
Indoor unit
Power supply for relay
Input signal
P.C.B
K1 - K6: Relay
(Device for DC Current)
* When forced stop function is used with forming a remote controller group, connect the
same equipment to each indoor unit within the group.
• Selection method of functions
“Operation/Stop” mode or “Emergency stop” mode, “Forced stop” mode can be selected
with function setting of indoor unit.
● Forced thermostat off function
[“Edge” input only]
NOTE :
When connected to multiple indoor units directly, it will cause breakdown.
Operation behavior
Edge
● Input signal type
Connector
Input signal
Pulse
Input signal type
OFF (Factory setting)
Edge
ON
Pulse
OFF → ON
Thermostat off
ON → OFF
Normal
Ch3 of CNA03 or CNA04
The input signal type can be selected.
It is switched by DIP switch on the indoor unit PCB.
DIP switch [Set 2 SW2]
Command
The width of pulse
must be longer than
200msec.
● When function setting is “Operation/Stop” mode.
(2) External output
• A twisted pair cable (22AWG) should be used. Maximum length of cable is 25m.
• Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed.
• Output voltage: Hi DC12V±2V, Lo 0V.
• Permissible current: 50mA
[In the case of “Edge” input]
Connector
Input signal
Command
OFF → ON
Operation
ON → OFF
Stop
Output select
● When indicator etc. are connected directly
P.C.B
Ch1 of CNA01 or CNA02
Operation indicator
[In the case of “Pulse” input]
Connector
Command
Ch1
OFF → ON
Operation
Ch2
OFF → ON
Stop
Indoor unit Fan
status indicator
CNA01 or CNA02
* The last command has priority.
* The indoor units within the same remote controller group operates in the same mode.
connected unit
● When connecting with unit equipped with a power supply
P.C.B
Connected
device 1
● When function setting is “Emergency stop” mode.
[In the case of “Edge” input]
Connector
CNB
01
Error indicator
Input signal
Input signal
Connected
device 2
Command
OFF → ON
Emergency stop
ON → OFF
Normal
CNB
01
Connected
device 3
Ch1 of CNA01 or CNA02
connected unit
Relay (locally purchased)
[In the case of “Pulse” input]
Connector
Ch1
Input signal
OFF → ON
Command
Operation behavior
Connector
Emergency stop
CNA01 or CNA02
Ch2
OFF → ON
External output1
Pins 1-2
Normal
* All indoor units of same refrigerant system stops when Emergency stop operates.
CNB01
External output2
Pins 1-3
External output3
Pins 1-4
Output voltage
0V
DC 12 V
0V
DC 12 V
0V
DC 12 V
Status
Stop
Operation
Normal
Error
Indoor unit fan stop
Indoor unit fan operation
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(3) Connection methods
• Wire modification
Remove insulation from wire attached to wire kit connector.
Remove insulation from locally purchased cable. Use crimp type insulated butt connector to join field cable and wire kit wire.
Connect the wire with connecting wire with solder.
Setting
Indoor unit
address
Setting
range
0 to 63
Type of switch
Setting example
2
IMPORTANT: Be sure to insulate the connection between the wires.
IU AD×10
IU AD×1
Option parts:
External input /output wire
Locally purchased
Refrigerant circuit
address
0 to 99
Setting example
63
REF AD×10
REF AD×1
Solder and insulate the connected parts.
(1) Indoor unit address
• Connection terminals and wiring arrangement
In following figure, all the possible connectors are connected for description.
In actual installation, you cannot connect all the connectors at once.
CNA02
CNA01
CNB01
Transmission cable
Rotary switch (IU AD ×1)...Factory setting “0”
Rotary switch (IU AD ×10)...Factory setting “0”
When connecting multiple indoor units to 1 refrigerant system, set the address at IU AD
SW as shown in the Table A.
(2) Refrigerant circuit address
Rotary switch (REF AD ×1)...Factory setting “0”
Rotary switch (REF AD ×10)...Factory setting “0”
In the case of multiple refrigerant systems, set REF AD SW as shown in the Table A
for each refrigerant system.
Set to the same refrigerant circuit address as the outdoor unit.
• If working in an environment where the wireless remote controller can be used, the
addresses can also be set using the remote controller.
• If setting the addresses using the wireless remote controller, set the indoor unit
address and refrigerant circuit address to “00”.
(For information on setting using the wireless remote controller.)
CNA04
CNA03
Cable tie (locally purchased):
Bind to the transmission cable
Table A
Address
Rotary switch setting
Refrigerant
circuit
REF AD SW
× 10
×1
× 10
×1
0
0
0
0
0
0
1
0
1
1
0
1
2
0
2
2
0
2
3
0
3
3
0
3
4
0
4
4
0
4
5
0
5
5
0
5
6
0
6
6
0
6
7
0
7
7
0
7
8
0
8
8
0
8
9
0
9
9
0
9
CAUTION
10
1
0
10
1
0
Use an insulated screwdriver to set the dip switches.
11
1
1
11
1
1
12
.
.
.
1
.
.
.
2
.
.
.
12
.
.
.
1
.
.
.
2
.
.
.
99
9
9
63
6
3
7. FIELD SETTING
There are 3 methods for address setting by FIELD SETTING as follows.
Set by either of the methods.
Each setting method is described (1) to (3) below.
(1) IU AD, REF AD SW settings ............. This section (7.1. Setting the address)
(2) Remote controller settings ............... Refer to the wired or wireless remote controller
manual for detailed setting information. (Set IU
AD, REF AD SW to 0)
(3) Automatic address settings ............. Refer to the outdoor unit manual for detailed
setting information. (Set IU AD, REF AD SW to 0)
CAUTION
Be sure to turn OFF the power before performing the field setting.
7.1. Setting the address
Rotary switch
Example: “0”
Address
Indoor unit
Rotary switch setting
IU AD SW
Do not set the indoor unit address (IU AD SW) at 64 to 99.
It may result in failure.
(3) Remote controller address
Rotary switch
Example: “0”
i) 3-wire type
Rotary switch (RC AD SW)...Factory setting “0”
When connecting multiple indoor units to 1 standard wired remote controller, set the
address at RC AD SW in sequence from 0.
Setting
Remote controller
address
Setting
range
0 to 15
Type of switch
Setting
example 0
RC AD
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Example
If 4 indoor units are connected.
7.3. Function setting
Indoor unit
Indoor unit
Indoor unit
Indoor unit
RC AD SW
0
RC AD SW
1
RC AD SW
2
RC AD SW
3
• FUNCTION SETTING can be performed with the wired or wireless remote controller.
(The remote controller is optional equipment)
• Refer to the wired or wireless remote controller manual for detailed setting information.
• Refer to “7.1. Setting the address.” for indoor unit address and refrigerant circuit
address settings.
• Turn the power of the indoor unit ON before starting the setting.
Remote
controller
* Turning on the power to the indoor units initializes EEV, so make sure the piping air
tight test and vacuuming have been conducted before turning on the power.
RC AD SW
0
1
2
3
4
5
6
7
Address
0
1
2
3
4
5
6
7
RC AD SW
8
9
A
B
C
D
E
F
Address
8
9
10
11
12
13
14
15
* Also check again to make sure no wiring mistakes were made before turning on the
power.
Function details
Function
Function
number
Setting number
00 Standard
ii) 2-wire type
Rotary switch (RC AD SW)...Factory setting “0”
Since the remote controller address settings are automatically configured, you do not
need to configure them.
If configuring manually, it is necessary to configure both the indoor unit and the remote
controller. For details, please refer to the remote controller manual.
7.2. Custom code setting
Selecting the custom code prevents the indoor unit mix-up.
(Up to 4 codes can be set.)
Perform the setting for both the indoor unit and the remote controller.
Filter indicator interval
11
Default
Details
○
Adjust the filter cleaning interval
notification. If the notification is too early,
change to setting 01. If the notification is
too late, change to setting 02.
01 Longer
02 Shorter
00 Enable
Filter indicator action
13
Ceiling
airflow
20
Vertical airflow direction
23
○
Enable or disable the filter indicator. Setting 02 is for use with a central remote
controller.
01 Disable
Display only on
02 central remote
controller
00 Standard
○
Regulate the airflow according to the
needs of the installation location. When
set to 01, the airflow will be stronger.
(Cassette type only)
○
Adjust the vertical airflow direction. All
airflow direction louvers are adjusted
together.
(Cassette type only)
○
Adjust the cool air trigger temperature.
To lower the trigger temperature, use
setting 01. To raise the trigger temperature, use setting 02.
○
Adjust the heat air trigger temperature.
To lower the trigger temperature by 6
degrees C, use setting 01. To lower the
trigger temperature by 4 degrees C, use
setting 02. To raise the trigger temperature, use setting 03.
01 High Ceiling
Code change
Confusion
Indoor
unit
A
Remote
controller
A
B
B
C
C
D
D
Cool air
temperature
trigger
Custom code setting for indoor unit
00 Standard
01 Raise
00 Standard
30
01 Adjust (1)
02 Adjust (2)
Set the DIP switch SET 3 SW1 , SW2, referring to the Table B.
00 Standard
Heat air
temperature
trigger
31
01 Adjust (1)
02 Adjust (2)
03 Adjust (3)
Auto restart
40
Cool Air
Prevention
43
ON
DIP switch “SET3”
00 Enable
01 Disable
00 Super low
Follow the
setting on
01
the remote
controller
00 Start/Stop
OFF
SW SW SW SW
1
2
3
4
External
control
46
01
○
○
○
Emergency
stop
Table B
Custom code
DIP switch SET 3 SW1
DIP switch SET 3 SW2
02 Forced stop
A (Factory setting)
B
C
D
OFF
ON
OFF
ON
OFF
OFF
ON
ON
CAUTION
Do not operate any switches other than prescribed, as it can cause the unit to operate
improperly or malfunction.
00 All
Error report
target
47
Display only on
01 central remote
controller
Follow the
setting on
00
the remote
controller
○
Fan setting when
cooling
thermostat
OFF
49
(Forbidden)
60
00
○
(Forbidden)
61
00
○
(Forbidden)
62
00
○
○
01 Stop
Enable or disable automatic system
restart after a power outage.
Restrain the cold airflow with making
the airflow lower when starting
heating operation. To correspond to
the ventilation, set to 01.
Allow an external controller to start
or stop the system, or to perform an
emergency stop.
* If an emergency stop is performed
from an external controller, all refrigerant systems will be disabled.
* If forced stop is set, indoor unit
stops by the input to the external
input terminals, and Start/Stop by a
remote controller is restricted.
Change the target for reporting errors.
Errors can either be reported in all
locations, or only on the central remote
controller.
When set to 01, the fan stops when
the thermostat is OFF in cooling operation. Connection of the wired remote controller (2-wire type or 3-wire
type) and switching its thermistor are
necessary.
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7.3.1. Button name and function
• Setting details
Function number
Item
Setting number
01
Indoor unit address
00 to 63
02
Refrigeration address
00 to 99
For use with a remote controller, set all rotary switches to 0, and refer to “7.1. Setting the
address” for details.
All switches are set to 0 at the factory.
FILTER indicator lamp (Red)
TIMER indicator lamp (Orange)
OPERATION indicator lamp (Green)
MANUAL AUTO button
(2) Others
Indication pattern
Indicator Name
Indication pattern
OPERATION indicator lamp (Green)
Function number; tens place (0.5s ON/0.5s
OFF)
TIMER indicator lamp (Orange)
Function number; ones place (0.5s ON/0.5s
OFF)
FILTER indicator lamp (Red)
Setting number: (0 to 9) (0.5s ON/0.5s OFF)
(Example) Function : 31, Setting number : 2
7.3.2. Checking the function settings
1 cycle 12 sec
• Press and hold the “MANUAL AUTO” button on the indoor unit for 3 seconds to check
the function settings. It is necessary to disconnect the power in order to return to
normal operation mode.
(1) Indoor unit and refrigerant address indication
Indication pattern
OPERATION
indicator lamp
(Green)
TIMER
indicator lamp
(Orange)
FILTER
indicator
lamp (Red)
ON
OFF
ON
OFF
ON
OFF
0.5s 0.5s 0.5s 0.5s 0.5s 0.5s
9 sec
0.5s 0.5s
11 sec
0.5s 0.5s 0.5s 0.5s
10 sec
Indication pattern
Indicator name
Indoor unit
address
OPERATION indicator lamp
(Green)
Refrigerant address
ON
Flash (1.0s ON/1.0s OFF)
TIMER indicator lamp (Orange)
Address: tens place (0.5s ON/0.5s OFF)
FILTER indicator lamp (Red)
Address: ones place (0.5s ON/0.5s OFF)
8. CASSETTE GRILLE INSTALLATION
8.1. Remove the intake grille
(1) Slide the 2 grille hook
• Indoor unit address example
(Example) ADDRESS : 24
1 cycle 12 sec
OPERATION
indicator lamp
(Green)
TIMER
indicator lamp
(Orange)
FILTER
indicator
lamp (Red)
ON
ON
OFF
ON
0.5s 0.5s 0.5s 0.5s
OFF
ON
10 sec
0.5s 0.5s 0.5s 0.5s 0.5s 0.5s 0.5s 0.5s
OFF
8 sec
Grille hook
(2) Open the intake grille and remove.
• Refrigerant address example
(Example) ADDRESS : 30
1 cycle 12 sec
OPERATION
indicator lamp
(Green)
TIMER
indicator lamp
(Orange)
FILTER
indicator
lamp (Red)
ON
OFF
ON
OFF
ON
OFF
1.0s
1.0s
1.0s
1.0s
0.5s 0.5s 0.5s 0.5s 0.5s 0.5s
1.0s
1.0s
1.0s
9 sec
OFF
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8.2. Install cassette grille to indoor unit
(1) Install the cassette grille on the indoor unit.
8.3. Attach the intake grille
The installation is the reverse of “8.1. Remove the intake grille”.
The intake grille can be rotated and installed 4 ways to suit the user’s preference.
“PIPE” mark
“DRAIN” mark
CAUTION
The louver angle cannot be changed if the power is not on, (If moved by hand, it may
be damaged.)
The grille assembly is directional relative to the air conditioner body.
Install so that there is no gap between the grille assembly and the air conditioner body.
9. TEST RUN
* Align the stamped marks on the cassette grille against the pipe and the drain of the
indoor unit.
9.1. Test run using Outdoor unit (PCB)
• Refer to the Installation Manual for the outdoor unit if the PCB for the outdoor unit is to
be used for the test run.
CAUTION
9.2. Test run using Remote Controller
5 to 7 mm
Use only the supplied screws to install the cassette grille.
Indoor unit
Sealant
Ceiling
• Refer to the Installation Manual for the remote controller to perform the test run using
the remote controller.
• When the air conditioner is being test run, the OPERATION and TIMER indicator
lamps flash slowly at the same time.
10.CHECK LIST
Cassette grille
Pay special attention to the check items below when installing the indoor unit(s). After
installation is complete, be sure to check the following check items again.
No gap between ceiling and
cassette grille around entire
periphery
(2) Connect the connector.
Cable (louver): WHITE
Cable (display): WHITE
Cable (louver): RED
Indoor unit side
• Arrange the cables as illustrated below.
CHECK ITEMS
If not performed correctly
Has the indoor unit been installed
correctly?
Vibration, noise, indoor unit
may drop
Has there been a check for gas leaks
(refrigerant pipes)?
No cooling, No heating
Has heat insulation work been
completed?
Water leakage
Does water drain easily from the indoor
units?
Water leakage
Is the voltage of the power source the
same as that indicated on the label on
the indoor unit?
No operation, heat or burn
damage
Are the wires and pipes all connected
completely?
No operation, heat or burn
damage
Is the indoor unit earthed (grounded)?
Short circuit
Is the connection cable the specified
thickness?
No operation, heat or burn
damage
Are the inlets and outlets free of any
obstacles?
No cooling, No heating
Does start and stop air conditioner
operation by remote control unit or
external device?
No operation
CHECK
BOX
After installation is completed, has the
proper operation and handling been
explained to the user?
(3) Attach the connector cover.
Connector cover
Screw
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Wired remote controller display
11. ERROR CODES
If you use a wired type remote controller, error codes will appear on the remote controller display. If you use a wireless remote controller, the lamp on the photodetector unit
will output error codes by way of blinking patterns. See the lamp blinking patterns and
error codes in the table below.
Error indications
OPERATION
lamp (green)
TIMER
lamp
(orange)
FILTER
lamp (red)
Wired Remote
Controller
Error code
UTY-RNKY / UTY-RNKG / UTY-RNKYT (3-wire type)
Error code
Error contents
UTY-RNRY / UTY-RNRG / UTY-RNRYZ1 / UTY-RNRGZ1 (2-wire type)
(1)
(2)
Remote controller
communication error
(1)
(4)
Network communication error
(1)
(6)
Peripheral unit communication
error
(2)
(6)
Indoor unit address setting
error
(2)
(9)
Connection unit number error
in wired remote controller
system
(1)
Indoor unit power supply
abnormal
Error icon
Touch the [Status].
Touch the [Next Page] (or [previous page])
to switch to other indoor unit information.
Touch the [Error Information].
2-digit numbers are corresponding to
the error code in the preceding table.
For more information, refer to the installation manual of the remote controller.
UTY-RLRY / UTY-RLRG (2-wire type)
Error icon
(3)
(3)
(2)
Indoor unit main PCB error
(3)
(10)
Indoor unit communication
circuit (wired remote controller)
error
(4)
(1)
Indoor unit room temp.
thermistor error
(4)
(2)
Indoor unit heat ex. temp.
thermistor error
(5)
(1)
Indoor unit fan motor 1 error
(5)
(2)
Indoor unit coil (expansion
valve) error
(5)
(3)
Indoor unit water drain
abnormal
(9)
(15)
Outdoor unit miscellaneous
error
(13)
(1)
RB unit error
Display mode
Error code
For more information, refer to the installation manual of the remote controller.
: 0.5s ON / 0.5s OFF
: 0.1s ON / 0.1s OFF
( ) : Number of flashing
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