Page 1
AIR CONDITIONER
INDOOR UNIT
Wall Mounted Type
INSTALLATION MANUAL
For authorized service personnel only.
Contents
1. SAFETY PRECAUTIONS ............................................. 2
1.1. IMPORTANT! Please read before starting .............2
1.2. SPECIAL PRECAUTIONS ..................................... 2
2. ABOUT THE UNIT ........................................................3
2.1. Precautions for using R410A refrigerant ..................3
2.2. Special tools for R410A ............................................3
2.3. For authorized service personnel only. .................. 3
2.4. Accessories ........................................................... 4
2.5. Optional parts ...........................................................4
3. GENERAL .....................................................................4
3.1. Type of copper pipe and insulation material .......... 4
3.2. Additional materials required for installation .......... 4
3.3. Operating range..................................................... 5
4. ELECTRICAL REQUIREMENT .................................... 5
5. SELECTING THE MOUNTING POSITION ................... 5
6. INSTALLATION WORK ................................................ 5
6.1. Installation dimensions .......................................... 5
6.2. Indoor unit piping direction ....................................5
6.3.
Cutting the hole in the wall for the connecting piping
6.4. Installing the wall hook bracket ............................. 6
6.5. Forming the drain hose and pipe ........................... 6
6.6. Flare connection (Pipe connection) ....................... 7
7. ELECTRICAL WIRING ................................................. 8
7.1. Wiring system diagram .......................................... 8
7.2. How to the install the indoor unit wire harness ...... 9
7.3. How to connect wiring to the terminals .................. 9
.... 6
8. FINISHING .................................................................. 10
9. FRONT PANEL REMOVAL AND INSTALLATION ..... 10
9.1. Intake grille removal ............................................ 10
9.2. Intake grille installation ........................................10
9.3. Front panel removal............................................. 10
9.4. Front panel installation ........................................10
10. TEST RUN .................................................................. 11
11. REMOTE CONTROLLER INSTALLATION ................ 11
11.1. Remote controller holder installation ................. 11
12. OPTIONAL KIT INSTALLATION(OPTION) ................ 12
12.1. Before install optional remote controller ............ 12
12.2. Remote controller cable modifi cation ................12
12.3.
External input / output Wire modifi cation........... 12
12.4. Front panel, control box cover and display
case removal .....................................................12
Connecting cable to control board connector
12.5.
12.6. Front panel, control box cover and display
case installation ................................................. 13
13. FUNCTION SETTING .................................................14
14. ERROR CODES ......................................................... 16
15. CUSTOMER GUIDANCE ........................................... 17
....... 13
PART NO. 9318739022
9318739022_IM.indb 19318739022_IM.indb 1 2010-11-2 15:24:332010-11-2 15:24:33
Page 2
1. SAFETY PRECAUTIONS
1
1.1. IMPORTANT! Please read before starting
This air conditioning system meets strict safety and operating
standards.
As the installer or service person, it is an important part of
your job to install or service the system so it operates safely
and effi ciently.
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.
• Observe all local, state, and national electrical codes.
• Pay close attention to all danger, warning, and caution
notices given in this manual.
WARNING:
CAUTION:
• Hazard alerting symbols
Safety/alert
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.
This symbol refers to a hazard or unsafe
practice which can result in severe personal
injury or death.
This symbol refers to a hazard or unsafe
practice which can result in personal injury
and the potential for product or property
damage.
Electrical
1.2. SPECIAL PRECAUTIONS
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.
• Ground the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fi re hazard.
When Installing...
...In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the unit’s
weight. It may be necessary to construct a strong wood or
metal frame to provide added support.
...In a Room
Properly insulate any tubing run inside a room to prevent
“sweating” that can cause dripping and water damage to walls
and fl oors.
...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 baffl e.
...In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher than
drifting snow.
When Connecting Refrigerant Tubing
• Keep all tubing runs as short as possible.
• Use the fl are method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of the
fl are and union tubes before connecting them, then tighten
the nut with a torque wrench for a leak-free connection.
• Check carefully for leaks before opening the refrigerant
valves.
When Servicing
• Turn the power OFF at the main circuit breaker panel
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.
• After installation, explain correct operation to the customer,
using the operating manual.
DANGER
Never touch electrical components immediately after the power supply has been turned off. Electrical
shock may occur. After turning off the power, always
wait 5 minutes or more before touching electrical
components.
When Transporting
Be careful when picking up and moving the indoor and
outdoor units. Get a partner to help, and bend your knees
when lifting to reduce strain on your back. Sharp edges or thin
aluminum fi ns on the air conditioner can cut your fi ngers.
En-2
9318739022_IM.indb Sec1:29318739022_IM.indb Sec1:2 2010-11-2 15:24:372010-11-2 15:24:37
Page 3
2. ABOUT THE UNIT
1
2.1. Precautions for using R410A refrigerant
The basic installation work procedures are the same
as conventional refrigerant (R22) models.
However, pay careful attention to the following points:
(1) Since the working pressure is 1.6 times higher
than that of conventional refrigerant (R22)
models, some of the piping and installation and
service tools are special. (See the table below.)
Especially, when replacing a conventional
refrigerant (R22) model with a new refrigerant
R410A model, always replace the conventional
piping and fl are nuts with the R410A piping and
fl are nuts.
(2) Models that use refrigerant R410A have a
different charging port thread diameter to
prevent erroneous charging with conventional
refrigerant (R22) and for safety. Therefore, check
beforehand. [The charging port thread diameter
for R410A is 1/2 inch.]
(3) Be more careful that foreign matter (oil, water,
etc.) does not enter the piping than with
refrigerant (R22) models. Also, when storing the
piping, securely seal the opening by pinching,
taping, etc.
(4) When charging the refrigerant, take into account
the slight change in the composition of the gas
and liquid phases. And always charge from the
liquid phase where refrigerant composition is
stable.
1
2.2. Special tools for R410A
Tool name Contents of change
Pressure is high and cannot be
measured with a conventional (R22)
gauge. To prevent erroneous mixing
of other refrigerants, the diameter of
Gauge manifold
Charge hose
Vacuum pump
Gas leakage detector
each port has been changed.
It is recommended the gauge with
seals-0.1 to 5.3 MPa (30 in.Hg to
768 psi) for high pressure.
-0.1 to 3.8 MPa (30 in.Hg to 551 psi)
for low pressure.
To increase pressure resistance, the
hose material and base size were
changed.
A conventional vacuum pump can be
used by installing a vacuum pump
adapter.
Special gas leakage detector for
HFC refrigerant R410A.
Copper pipes
It is necessary to use seamless copper pipes and it is
desirable that the amount of residual oil is less than
0.004 oz/100ft. Do not use copper pipes having a collapsed,
deformed or discolored portion (especially on the interior surface). Otherwise, the expansion value or capillary tube may
become blocked with contaminants.
As an air conditioner using R410A incurs pressure higher than
when using R22, it is necessary to choose adequate materials.
CONNECTION PIPE REQUIREMENT
WARNING
(1)
Do not use the existing (for R22) piping and fl are nuts.
• If the existing materials are used, the pressure inside
the refrigerant cycle will rise and cause failure, injury,
etc. (Use the special R410A materials.)
(2) When installing and relocating the air conditioner,
do not mix gases other than the specifi ed refriger-
ant (R410A) to enter the refrigerant cycle.
• If air or other gas enters the refrigerant cycle, the
pressure inside the cycle will rise to an abnormally
high value and cause failure, injury, etc.
2.3. For authorized service personnel only.
WARNING
• For the air conditioner to operate satisfactorily, install it as
outlined in this installation manual.
• Connect the indoor unit and outdoor unit or branch box
with the air conditioner piping and cables available from
your local distributor. This installation manual describes
the correct connections using the installation set available
from your local distributor.
• Installation work must be performed in accordance with
national wiring standards by authorized personnel only.
• Do not turn on the power until all installation work is
complete.
CAUTION
This installation manual describes how to install the indoor unit only.
To install the outdoor unit, refer to the installation manual
included with the outdoor unit or branch box.
Be careful not to scratch the air conditioner when han-
•
dling it.
After installation, explain correct operation to the cus-
•
tomer, using the operating manual.
En-3
9318739022_IM.indb Sec1:39318739022_IM.indb Sec1:3 2010-11-2 15:25:112010-11-2 15:25:11
Page 4
2.4. Accessories
The following installation accessories are supplied. Use them
as required.
Name and Shape Q’ty Name and Shape Q’ty
Operating Manual
Installation Manual
(This manual)
Drain hose insulation
1
Cloth tape
1
1
1
1
2.5. Optional parts
Refer to each installation manual for the method of installing
optional parts.
Model No.Parts name Application
Wired Remote
Controller
Wireless Remote
Controller
Simple Remote
Controller
External connect
kit
UTYRNNUM
UTYLNHUM
UTYRSNUM
UTYXWZX
For air conditioner
operation
For air conditioner
operation
For air conditioner
operation
For control input/output
port
Wall hook bracket
Tapping screw (big)
1
Remote
controller
Tapping screw
(small)
1
Battery
Air cleaning filter
2
Remote
controller
holder
Air cleaning filter
frame
1
The following items are necessary to install this air conditioner. (The items are not included with the air conditioner
and must be purchased separately.)
Name Q’ty
Connection pipe assembly 1
Connection cable (4-conductor) 1
Wall pipe 1
Decorative tape 1
Vinyl tape 1
Wall cap 1
Saddle 1 set
Drain hose 1
Tapping screws 1 set
Sealant 1
M10 bolt, nut 4 set
En-4
3. GENERAL
8
2
2
2
This INSTALLATION MANUAL 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
3.1.
Type of copper pipe and insulation material
CAUTION
Refer to the installation manual for the outdoor unit for
description of allowable pipe length and height difference.
3.1.1. SINGLE TYPE INSTALLATION
MODEL
Liquid pipe Gas pipe
18,000BTU/h model 9.52mm (3/8in.)* 15.88mm (5/8in.)*
24,000BTU/h model 9.52mm (3/8in.)* 15.88mm (5/8in.)
*
When single type installation, the ADAPTER included outdoor
unit is necessary to connect the indoor unit to the outdoor unit
Diameter
.
3.1.2. MULTI TYPE INSTALLATION
MODEL
Liquid pipe Gas pipe
18,000BTU/h model 6.35mm (1/4in.) 12.70mm (1/2in.)
24,000BTU/h model 6.35mm (1/4in.) 15.88mm (5/8in.)
CAUTION
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 248 °F.
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 70-80%, use heat insulation that is 15 mm
(19/32 in.) or thicker and if the expected humidity exceeds
80%, use heat insulation that is 20 mm (25/32 in.) or thicker.
If heat insulation is used that is not as thick as specifi ed,
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 68 °F).
]1
3.2.
Additional materials required for installation
A. Refrigeration (armored) tape
B. Insulated staples or clamps for connecting wire
(See your local electrical codes.)
C. Putty
D. Refrigeration lubricant
E. Clamps or saddles to secure refrigerant piping
Diameter
9318739022_IM.indb Sec1:49318739022_IM.indb Sec1:4 2010-11-2 15:25:112010-11-2 15:25:11
Page 5
]1
3.3. Operating range
Cooling/ Dry Mode Heating Mode
Temperature About 64 to 90 °F About 60 to 88 °F
Humidity About 80% or less ─
4. ELECTRICAL REQUIREMENT
The indoor unit is powered from the outdoor unit or branch
box. Do not power indoor unit from separate power source.
WARNING
Refer to local codes for acceptable cable type.
Cable Cable size Remarks
Connection cable 14AWG
Max. Cable Length: Limit voltage drop to less than 2%.
Increase cable gauge if voltage drop is 2% or more.
5.
SELECTING THE MOUNTING POSITION
Decide the mounting position with the customer as follows:
(1) Install the indoor unit level on a strong wall which is not
subject to vibration.
(2) The inlet and outlet ports should not be obstructed : the air
should be able to blow all over the room.
(3)
Install the unit a dedicated electrical branch circuit.
(4)
Do not install the unit where it will be exposed to direct sunlight.
(5) Install the unit where connection to the outdoor unit or
branch box is easy.
(6) Install the unit where the drain pipe can be easily installed.
(7) Take servicing, etc. into consideration and leave the
spaces shown in [6.1. Installation dimensions]. Also install
the unit where the filter can be removed.
Correct initial installation location is important because it is
diffi cult to move unit after it is installed.
• Select installation locations that can properly support the
weight of the indoor. Install the units securely so that they
do not topple or fall.
• 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 fi lled 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 fi bers or fl ammable dust, or volatile
infl ammables such as paint thinner or gasoline.
If gas leaks and settles around the unit, it can cause a fi re.
• Area where animals may urinate on the unit or ammonia
may be generated.
3 cable + Ground, 1 Ø 208/230V
WARNING
CAUTION
• 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
fl ammable gas.
• Install the unit where drainage does not cause any trouble.
• Install the indoor unit, outdoor unit, branch box , power
supply cable, transmission cable, and remote controller
cable at least 40 in. (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 40 in. (1 m) apart, you could still receive noise
under some signal conditions.)
• If children under 10 years old may approach the unit, take
preventive measures so that they cannot reach the unit.
• Install the indoor unit on the wall where the height from
the fl oors more than 1800 mm (70 in.).
6. INSTALLATION WORK
]1
6.1. Installation dimensions
80 mm (3-5/32 in.)
or over
80 mm (3-5/32 in.) or over
*
1500 mm (59-1/16 in.)
or over
1800 mm (70 in.) or
over
Remote
controller
* Space from wall hook bracket .
]1
6.2. Indoor unit piping direction
The piping can be connected in the 7 directions in the fi gure.
When the piping is connected in direction 2, 3, 4 or 5,
cut along the piping groove in the side of the front panel with
a hacksaw.
Right
2
outlet
Bottom
3
outlet
*
Wall hook bracket
(Wall cap)
Remote controller holder
Tapping screw (small)
(Rear)
Center
6
Rear
1
outlet
outlet
4
120 mm
(4-23/32 in.)
or over
5
Left rear
7
outlet
Left bottom
outlet
*
Left
outlet
En-5
9318739022_IM.indb Sec1:59318739022_IM.indb Sec1:5 2010-11-2 15:25:122010-11-2 15:25:12
Page 6
6.3.
Cutting the hole in the wall for the connecting piping
(1) Cut a 80 mm (3-5/32 in.) diameter hole in the wall at the
position shown in the fi gure.
(2)
When cutting the wall hole at the inside of the wall hook
bracket, cut the hole to a point of intersection of center marks.
When cutting the wall hole at the outside of the wall hook
bracket, cut the hole at a point of 10 mm (13/32 in.) below.
(3) Cut the hole so that the outside end is lower (5 to 10 mm
(3/16 to 13/32 in.)) than the inside end.
(4) Always align the center of the wall hole. If misaligned, wa-
ter leakage will occur.
(5) Cut the wall pipe to match the wall thickness, stick it into
the wall cap, fasten the cap with vinyl tape, and stick the
pipe through the hole.
(6) For left piping and right piping, cut the hole a little lower so
that drain water will fl ow freely.
Centering marksWall hook bracket
10 mm (13/32 in.)
or more lower
Fasten with
vinyl tape
Wall cap*
80 mm (3-5/32 in.)
hole
Wall pipe*
(Inside) Wall (Outside)
10 mm (13/32 in.)
or more lower
5 to 10 mm (3/16 to 13/32 in.)
*Field supplied
6.5. Forming the drain hose and pipe
[Rear piping, Right piping, Bottom piping]
• Install the indoor unit piping in the direction of the wall hole
and bind the drain hose and pipe together with vinyl tape.
• Install the piping so that the drain hose is at the bottom.
• Wrap the pipes of the indoor unit that are visible from the
outside with decorative tape.
[For Left rear piping, Left piping]
Interchange the drain cap and the drain hose.
CAUTION
•
Insert drain hose and drain cap securely. Drain
should slope down to avoid water leakage.
•
When inserting, be sure not to attach any material
besides water. If any other material is attached, it will
cause deterioration and water leakage.
•
After removing drain hose, be sure not to forget
mounting drain cap.
• Be sure to fi x the drain hose with tape to the bottom of piping.
• Prevent drain water freezing under low temperature
environment.
When installing indoor unit’s drain hose outdoors, necessary measure for frost protection should be taken to prevent drain water freezing.
Under low temperature environment (when outdoor temperature under 32 °F), after cooling operation is executed,
water in the drain hose could be frozen.
Once drain water is frozen, the drain hose will be blocked
and water leakage may result at the indoor unit
.
WARNING
If the wall pipe is not used, the cable interconnecting
the indoor unit(s) and outdoor unit or branch box may
touch metal and cause electric discharge.
]1
6.4. Installing the wall hook bracket
(1) Install the wall hook bracket so that it is correctly posi-
tioned horizontally and vertically. If the wall hook bracket is
tiled, water will drip to the fl oor.
(2) Install the wall hook bracket so that it is strong enough to
support the weight of the unit.
Fasten the wall hook bracket to the wall with 6 or more
●
screws through the holes near the outer edge of the bracket
● Check that there is no rattle at the wall hook bracket.
Wall hook bracket
CAUTION
Install the wall hook bracket level, both horizontally
and vertically.
Tapping screw
(size: large; quantity: 8)
Right piping
Bottom
piping
Indoor unit
drain hose
.
Bind with vinyl tape
Pipe (top)
Rear piping
Indoor unit drain hose
(bottom)
For left outlet piping, cut
off the piping outlet cutting
groove with a hacksaw.
Remove the drain cap by
pulling at the projection
Drain cap
CAUTION
at the end of the cap with
pliers, etc.
Insert the drain hose and drain cap into the drain port,
making sure that it comes in contact with the back of
the drain port, and then mount it. If the drain hose is
not connected properly, leaking will occur.
• Attach the Drain hose insulation to the drain hose.
Drain hose insulation
Drain hose
En-6
9318739022_IM.indb Sec1:69318739022_IM.indb Sec1:6 2010-11-2 15:25:132010-11-2 15:25:13
Page 7
• For left piping and left rear piping, align the marks on the
flats
wall hook bracket and shape the connection pipe.
• Bend the connection piping at the bend radius of
100 mm (3-30/32 in.) or more and install no more than
35 mm (1-3/8 in.) from the wall.
• After passing the indoor piping and drain hose through the
wall hole, hang the indoor unit on the hooks at the top and
bottom of the wall hook bracket.
[Installing the indoor unit]
• Hang the indoor unit from the hooks at the top of the wall
hook bracket.
• Insert the spacer, etc. between the indoor unit and the wall
hook bracket and separate the bottom of the indoor unit from
the wall.
Indoor unit
(Spacer)
Wall hook bracket
Alignment marks
Check if [L] is flared uniformly
and is not cracked or scratched.
Die
Pipe
Pipe outside
diameter
[mm (in.)]
Dimension A
[mm (in.)]
Flare tool for R410A,
clutch type
6.35 (1/4)
9.52 (3/8) 13.2 (17/32)
12.70 (1/2) 16.6 (21/32)
15.88 (5/8) 19.7 (25/32)
0 to 0.5
(0 to 0.020)
L
Dimension B
-00.4
[mm (in.)]
9.1 (11/32)
19.05 (3/4) 24.0 (15/16)
When using conventional fl are tools to fl are R410A pipes, the
dimension A should be approximately 0.5mm (0.020 in.) more
than indicated in the table (for fl aring with R410A fl are tools) to
achieve the specifi ed fl aring. Use a thickness gauge to measure
the dimension A.
Wall hook
bracket
Small piping
Connection piping
Indoor
unit
Large piping
Top hooks
Wall hook
bracket
(Fitting) Bottom hooks
After hooking the indoor unit to the top hook, hook the fi ttings
of the indoor unit to the 2 bottom hooks while lowering the unit
and pushing it against the wall.
6.6. Flare connection (Pipe connection)
WARNING
• Tighten the flare nuts with a torque wrench using the
specifi ed tightening method. Otherwise, the fl are nuts could
break after a prolonged period, causing refrigerant to leak
and generate hazardous gas if the refrigerant comes into
contact with a fl ame.
6.6.1. Flaring
• Use special pipe cutter and fl are 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 fl are nut (always use the fl are nut attached to the
indoor unit(s) and outdoor unit or branch box respectively)
onto the pipe and perform the fl are processing with a fl are
tool. Use the special R410A fl are tool, or the conventional
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.
Width across
flats
Pipe outside
diameter [mm (in.)]
Width across flats
of Flare nut [mm (in.)]
6.35 (1/4) 17 (21/32)
9.52 (3/8) 22 (7/8)
12.70 (1/2) 26 (1-1/32)
15.88 (5/8) 29 (1-5/32)
19.05 (3/4) 36 (1-13/32)
6.6.2. 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 diffi cult to bend or stretch them any
more.
•
Do not bend or stretch the pipes more than 3 times.
CAUTION
• To prevent breaking of the pipe, avoid sharp bends.
• If the pipe is bent repeatedly at the same place, it will break.
6.6.3. Pipe connection
CAUTION
• Be sure to Install the pipe against the port on the indoor unit
correctly. If the centering is improper, the flare nut cannot
tighten smoothly. If the fl are nut is forced to turn, the threads
will be damaged.
• Do not remove the fl are nut from the indoor unit pipe until
immediately before connecting the connection pipe.
• Hold the torque wrench at its grip, keeping it at a right angle
with the pipe, in order to tighten the fl are nut correctly.
• Tighten the flare nuts with a torque wrench using the
specifi ed tightening method. Otherwise, the fl are nuts could
break after a prolonged period, causing refrigerant to leak
and generate hazardous gas if the refrigerant comes into
contact with a fl ame.
En-7
9318739022_IM.indb Sec1:79318739022_IM.indb Sec1:7 2010-11-2 15:25:142010-11-2 15:25:14
Page 8
CAUTION
• Connect the piping so that the control box cover can
easily be removed for servicing when necessary.
• In order to prevent water from leaking into the control box,
make sure that the piping is well insulated.
• When single type installation, the ADAPTER included outdoor unit is necessary to connect the indoor unit to the out-
door unit.
SINGLE TYPE INSTALLATION
MODEL
Liquid pipe Gas pipe
18,000BTU/h model Use Use
24,000BTU/h model Use No use
ADAPTER
MULTI TYPE INSTALLATION
MODEL
Liquid pipe Gas pipe
18,000BTU/h model No use No use
24,000BTU/h model No use No use
When the fl are nut is tightened properly by your hand, hold the
body side coupling with a wrench, then tighten with a torque
wrench. (See the table below for the fl are nut tightening torques
and adapter tightening torque.)
Torque wrench
Indoor unit pipe
(Body side)
ADAPTER
Tighten with two wrenches.
Holding wrench
Flare nut
Connection pipe
Flare nut tightening torque
Flare nut [mm (in.)] Tightening torque [N·m (lbf·ft)]
6.35 (1/4) dia. 16 to 18 (11.8 to 13.3)
9.52 (3/8) dia. 32 to 42 (23.6 to 31.0)
12.70 (1/2) dia. 49 to 61 (36.1 to 45.0)
15.88 (5/8) dia. 63 to 75 (46.5 to 55.3)
19.05 (3/4) dia. 90 to 110 (66.4 to 81.1)
Adapter tightening torque
Adapter type Tightening torque [N·m (lbf·ft.)]
φ6.35mm (1/4in.)
→φ9.52mm (3/8in.)
φ12.7mm(1/2in.)
→φ15.88mm(5/8in.)
* When using the ADAPTER, be careful not to overtighten the
nut, or the smaller pipe may be damaged.
Indoor unit pipe
16 to 18 (11.8 to 13.3)
49 to 61 (36.1 to 45.0)
Adapter
Flare nut
Connection pipe
7. ELECTRICAL WIRING
]1
7.1. Wiring system diagram
INDOOR UNIT SIDE
INDOOR UNIT
TERMINAL
DISCONNECT
SWITCH
(FIELD SUPPLY)
14AWG
(Inter-unit)
Power lines
208/230 V
208/230 V
208/230 V
Grounding line
Disconnect switch - fi eld supplied if required by local code. Select
the correct capacity of disconnect switch according to the load.
Indoor unit
terminal block
Earth
screw
Disconnect switch
• To connect the indoor unit wires to the terminal correctly,
refer to the fi gure for proper length.
14AWG
Earth wire
25 mm
(31/32 in.)
190 mm
(7-15/32 in.)
25 mm
(31/32 in.)
175 mm
(6-7/8 in.)
Conduit holder
CAUTION
Every wire must be connected fi rmly.
No wire should be allowed to touch refrigerant tubing,
the compressor or any moving part.
Loose wiring may cause the terminal to overheat or
result in unit malfunction. A fi re hazard may also exist.
Therefore, be sure all wiring is tightly connected.
Connect wires to the matching numbers of terminals.
OUTDOOR UNIT
or BRANCH BOX
Please connect
it to the specifi ed
terminal.
Outdoor unit or
Branch box
Please connect
it to the specifi ed
terminal.
Conduit connector
En-8
9318739022_IM.indb Sec1:89318739022_IM.indb Sec1:8 2010-11-2 15:25:152010-11-2 15:25:15
Page 9
]1
7.2.
How to the install the indoor unit wire harness
1. Remove the screws, then remove the conduit holder.
2. Fasten the indoor unit wire harness to the conduit holder
using the lock nut.
IMPORTANT: Refer to fi gure of indoor unit wire length
about the length of indoor unit wire harness.
3. Use the screws to install the conduit holder provide with the
indoor unit.
4. Remove the screws, then remove the cable clamp.
5. Connect indoor unit wire harness to the terminal.
Refer to the wiring diagram.
6. Use the screws to install the cable clamp.
lock nut
CONDUIT
HOLDER
SCREW
CONDUIT
CONNECTOR
]1
7.3. How to connect wiring to the terminals
Caution when wiring cable
• When stripping off the insulation of a lead wire, always use a
special tool such as a wire stripper. If there is no special tool
available, carefully strip the insulation with a knife etc.
(1) Use crimp-type terminals with insulating sleeves as shown
in the fi gure below to connect to the terminal block.
(2) Securely clamp the crimp-type terminals to the wires using
an appropriate tool so that the wires do not come loose.
Strip : 10 mm (13/32 in.)
(3) Use the specifi ed wires, 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.
Screw with special washer
Wire
Crimp-type terminal
Crimp-type
terminal
Sleeve
Screw with
special washer
Crimp-type
terminal
Connection
cable
Cable
clamp
Screw
Cable clamp
Ta b
Screw
Insert the tab into the square hole of the indoor unit and fasten with a screw.
Square hole
Connection cable
Terminal blocks
Wire
(6) See the table below for the terminal screw tightening
torques.
Tightening torque [N·m (lbf·in)]
M4 screw 1.2 to 1.8 (11 to 16)
CAUTION
• Match the terminal block numbers and connection cable
colors with those of the outdoor unit or branch box.
Erroneous wiring may cause burning of the electric parts.
• Connect the connection cables firmly to the terminal
block. Imperfect installation may cause a fi re.
• Always fasten the outside covering of the connection
cable with the cable clamp. (If the insulator is chafed,
electric discharge may occur.)
• Always connect the ground wire.
• Do not use the ground screw of the indoor unit for the
connection other than a specifi ed outdoor unit or branch
box.
En-9
9318739022_IM.indb Sec1:99318739022_IM.indb Sec1:9 2010-11-2 15:25:162010-11-2 15:25:16
Page 10
]1]1
8. FINISHING
(1) Insulate between pipes.
● Insulate suction and discharge pipes separately.
● For rear, right, and bottom piping, overlap the connection
pipe heat insulation and indoor unit pipe heat insulation
and bind them with vinyl tape so that there is no gap.
● For left and left rear piping, butt the connection pipe heat
insulation and indoor unit pipe heat insulation together and
bind them with and vinyl tape so that there is no gap.
●
For left and left rear piping, wrap the area which
accommodates the rear piping housing section with cloth tape.
● For left and left rear piping, bind the connection cable to
the top of the pipe with vinyl tape.
●
For left and left rear piping, bundle the piping and drain hose
together by wrapping them with cloth tape over the range
within which they fi t into the rear piping housing section.
(2) Temporarily fasten the connection cable along the
connection pipe with vinyl tape. (Wrap to about 1/3 the
width of the tape from the bottom of the pipe so that
water does not enter.)
(3) Fasten the connection pipe to the outside wall with
saddles, etc.
(4)
Fill the gap between the outside wall pipe hole and the pipe
with sealer so that rain water and wind cannot blow in.
(5) Fasten the drain hose to the outside wall, etc.
]1
9.
FRONT PANEL REMOVAL AND INSTALLATION
9.1. Intake grille removal
(1) Open the intake grille.
(2) Pull down the knob.
(3) Lift the intake grille upward, until the axle at the top of the
intake grille is removed.
1
9.2. Intake grille installation
(1)
The fi xing axle of the intake grille is installed on the Panel.
(2) Lay down the intake grille.
1
9.3. Front panel removal
(1)
Remove intake grille (Reference the intake grille removal.)
(2) Remove 6 screws.
The thumb is hung on the lower part as shown in the fi gure,
(3)
and it pulls to the front, pushing [▲] mark , and bottom
hooks (2 position) is removed from wall hook bracket.
(4) The front panel is pulled to the front, raising the upper
surface, and a front panel is removed.
9.4. Front panel installation
Saddle*
Pipe
Connection pipe
(heat insulation)
Bind the pipes together so
that there is no gap.
Pipe
Drain hose
Left piping
Connection cable
Wall
Overlap the insulation
Cloth tape
Pipe
Drain hose
Outside wall cap*
Sealer putty*
(Outdoors)
*Field supplied
Indoor unit pipe
(heat insulation)
Vinyl tape
Wrap with
cloth tape
(1) First, fi t the lower part of the front panel, and insert top
and bottom hooks. (3 top sides)
(2) Attach the 6 screws.
(3) Attach the intake grille.
Screws (6 position)
Push
Top holes (two sides)
Top hole (center)
Intake grille
Mounting shaft
Bearing
Front panel
Front panel
Wall hook bracket
Push
[▲] mark
Intake grille
Knob
Front panel
Top hook (center)
Front panel
For connection from the left rear
Wall pipe
Drain hose
Connection cable
Connection pipe
Indoor unit
Top hooks
(2 sides)
CAUTION
Check the following:
GOOD
Drain hose
Saddle
NO GOOD
Lifted up
NO GOOD
Wave End in water
NO GOOD
Install the front panel and INTAKE GRILLE securely.
If installation is imperfect, the front panel or INTAKE
GRILLE may fall off and cause injury.
En-10
9318739022_IM.indb Sec1:109318739022_IM.indb Sec1:10 2010-11-2 15:25:162010-11-2 15:25:16
Page 11
10. TEST RUN
WARNING
Do not turn on the power until all installation work is complete.
CAUTION
When restarting after a long period of disuse in the winter, turn
the power switch on at least 12 hours before starting the unit.
Check items
(1) Is operation of each button on the remote controller nor-
mal?
(2) Does each lamp light normally?
(3) Do air fl ow direction louvers operate normally?
(4) Is the drain normal?
(5) Do not have an abnormal noise and vibration during op-
eration?
● Do not operate the air conditioner in test run for a long
time.
[Operation method]
● F
or the operation method, refer to the operating manual.
● T
he outdoor unit may not operate depending on the room
temperature.
In this case, press the test run button on the remote controller
while the air conditioner is running.
(Point the transmitter section of the remote controller toward
the air conditioner and press the test run button with the tip of
a ballpoint pen, etc.)
Transmitter section
11. REMOTE CONTROLLER INSTALLATION
1
CAUTION
• Check that the indoor unit correctly receives the
signal from the remote controller, then install the
remote controller holder.
• Select the remote controller holder selection site by
paying careful attention to the following:
Avoid places in direct sunlight.
Select a place that will not be affected by the heat
from a stove, etc.
11.1. Remote controller holder installation
• Install the remote controller a maximum distance of 7 m
(23 ft) from the remote control receiver. However, when
installing the remote controller, check that it operates correctly.
• Install the remote controller holder to a wall, pillar, etc. with
the tapping screw.
Remote controller holder fixing Remote controller mounting
Remote controller
holder
(1) Set
(2) Push
Test run button
● To end test operation, press the remote controller
START/
STOP button.
(When the air conditioner is running by pressing the test
run button, the OPERATION Lamp and TIMER Lamp will
simultaneously fl ash slowly.)
[Using the wired remote controller] (Option)
● For the operation method, refer to the operating
manual.
(1) Stop the air conditioner operation.
(2) Press the master control button and the fan control button
simultaneously for 2 seconds or more to start the test run.
Test run display
(3) Press the start/stop button to stop the test run.
Tapping
screw
(small)
Remote
controller
En-11
9318739022_IM.indb Sec1:119318739022_IM.indb Sec1:11 2010-11-2 15:25:182010-11-2 15:25:18
Page 12
12.
OPTIONAL KIT INSTALLATION(OPTION)
This air conditioner can be connected with the following optional kits. Refer to each installation manual for the method of
installing optional parts.
• Wired remote controller
• Simple remote controller
• External connect kit
]1
12.1.
Before install optional remote controller
• When you use optional remote controller, some functions
may not be used.
• Please use the recommended optional remote controller.
CAUTION
•
Before installing, be sure to disconnect all power supply.
• Don’t touch the heat exchanger.
• During installing or removing operation, be sure not
to have wire caught by parts or pull it hard.
• Avoid place in direct sunlight.
• Select placing that will not be affected by the heat
from a stove, etc.
• Before setting up the optional kit, please confirm
whether air-conditioner can receive the signal.
• Do not connect the optional remote controller to the
terminal for power supply.
• When connecting the optional remote controller with
the indoor unit, please use the connecting cable
packaged up with the optional remote controller.
• Recommended cable length of optional remote
controller is 10 m (33 ft). Make sure to do insulate of
connecting part when extending the cable.
12.3.
External input / output Wire modifi cation
(1)
Remove insulation from wire attached to wire kit connector.
Remove insulation from field supplied cable. Use crimp
type insulated butt connector to join fi eld cable and wire kit
wire.
(2) Connect the wire and Field supply wire.
(supplied with external connect kit)
Important:
Be sure to solder wires to connect. Be sure to insulate
the connection between the wires.
Option parts
External input/output wire
Insulated connection
Cable (Field supply)
]1
12.4. Front panel, control box cover and
display case removal
(1) Refer to “FRONT PANEL REMOVAL AND INSTALLATION”
to remove the front panel.
(2) Remove the screw then remove the control box cover.
(3) Remove the display case and connector.
control box cover
connector
]1
12.2. Remote controller cable modifi cation
(1) Use a tool to cut off the terminal on the end of the remote
controller cable,and then remove the insulation from the
cut end of the cable.
(2) Connect the remote controller cable and connecting cable.
(supplied with wired remote controller)
Important:
Be sure to solder wires to connect. Be sure to insulate
the connection between the wires.
Connecting cable
Red
White
White
Red
Black
Insulated
connection
Black
20 mm
(13/16 in.)
Remote
controller cable
Remote
controller cable
screw
display case
En-12
9318739022_IM.indb Sec1:129318739022_IM.indb Sec1:12 2010-11-2 15:25:182010-11-2 15:25:18
Page 13
]1
12.5. Connecting cable to control board
connector
(1) Pass the cable from the hole in the back of indoor unit.
(2) Connect the cable to the control board connector.
(3) Hook the cable to the rib.
hole
connect the cable
CN14
CN16
PCB
CN6
(5) Fix the binder clamp with the screw and bind the wire of
external kit with the binder.
binder clamp
screw
binder
external connect wire
screw
binder clamp
conduit holder
original wire of
control box
rib
Option type Connector No
Wired remote controller
Simple remote contoroller
CN6
External input CN14
External output CN16
(4) Use cable clamper and screw to fasten the cable of wired
remote controller.
cable
clamper
screw
screw
cable clamper
conduit holder
cable of wired
remote controller
external connect wire
]1
12.6. Front panel, control box cover and
display case installation
Install front panel, control box cover and display case by the
reverse procedures as stated in 12.4 Front panel, control box
cover and display case removal.
original wire of control unit
En-13
9318739022_IM.indb Sec1:139318739022_IM.indb Sec1:13 2010-11-2 15:25:192010-11-2 15:25:19
Page 14
13. FUNCTION SETTING
•
Perform the “FUNCTION SETTING” according to the
installation conditions using the remote controller.
CAUTION
• Confi rm whether the wiring work for Outdoor unit or Branch
box has been fi nished.
• Confirm that the cover for the electrical enclosure on the
outdoor unit is in place.
•
This procedure changes to the function settings used to control
the indoor unit according to the installation conditions. Incorrect
settings can cause the indoor unit to malfunction.
• After the power is turned on, perform the “FUNCTION
SETTING” according to the installation conditions using the
remote controller.
• The settings may be selected between the following two:
Function Number or Setting Value.
• Settings will not be changed if invalid numbers or setting
values are selected.
• Refer to the installation manual enclosed with the remote
controller when the wired remote controller (option) is used.
Entering the Function Setting Mode
•
While pressing the FAN button and SET TEMP. ( ) simultaneously,
press the RESET button to enter the function setting mode.
STEP 1
Selecting the Remote Controller Signal Code
Use the following steps to select the signal code of the remote
controller. (Note that the air conditioner cannot receive a signal code if
the air conditioner has not been set
for the signal code.)
The signal codes that are set through
this process are applicable only to the
signals in the FUNCTION SETTING.
For details on how to set the signal
codes through the normal process,
refer to Remote controller signal code.
Press SET TEMP. ( ) ( ) button
1
to change the signal code between
the display to the air conditioner
signal code. (initially set to )
(If the signal code does not need
to be selected, press the MODE
button and proceed to STEP 2.)
Press the TIMER MODE button
2
and check that the indoor unit can
receive signals at the displayed
signal code.
Press the MODE button to accept
3
the signal code, and proceed to
STEP 2.
. Match the code on
The air conditioner signal code is set to A prior to shipment. Contact your retailer to change the signal code.
The remote controller resets to signal code A when the
batteries in the remote controller are replaced. If you use a
signal code other than signal code A, reset the signal code
after replacing the batteries.
If you do not know the air conditioner signal code setting,
try each of the signal codes (
the code which operates the air conditioner.
) until you fi nd
STEP 2
Selecting the Function Number and Setting Value
Press the SET TEMP. ( ) ( ) buttons to select the function number.
1
(Press the MODE button to switch between the left and right digits.)
Press the FAN button to proceed to setting the value.
2
(Press the FAN button again to return to the function number
selection.)
Press the SET TEMP. ( ) ( ) buttons to select the setting value.
3
(Press the MODE button to switch between the left and
right digits.)
Press the TIMER
4
MODE button,
and START/STOP
button, in the order
listed to confi rm the
settings.
Press the RESET
5
button to cancel the
function setting mode.
After completing the
6
FUNCTION SETTING,
be sure to turn off the
power and turn it on again.
Function
number
Setting
value
CAUTION
After turning off the power, wait 10 seconds or more
before turning on it again.
The Function Setting does not become active unless
the power is turned off then on again.
Filter Sign
• The indoor unit has a sign to inform the user that it is time to
clean the fi lter. Select the time setting for the fi lter sign dis-
play interval in the table below according to the amount of
dust or debris in the room. If you do not wish the fi lter sign
to be displayed, select the setting value for “No indication”.
(♦... Factory setting)
Setting Description
Standard (400 hours)
Function
Number
Setting
Value
00
Long interval (1,000 hours) 01
Short interval (200 hours) 02
♦
No indication 03
11
En-14
9318739022_IM.indb Sec1:149318739022_IM.indb Sec1:14 2010-11-2 15:25:212010-11-2 15:25:21
Page 15
Cooling Room Temperature Correction
• Depending on the installed environment, the room temperature sensor may require a correction.
The settings may be selected as shown in the table below.
(♦... Factory setting)
Setting Description
♦
Standard
Slightly lower control 01
Lower control 02
Warmer control 03
Function
Number
30
Setting
Value
00
Heating Room Temperature Correction
• Depending on the installed environment, the room temperature sensor may require a correction.
The settings may be changed as shown in the table below.
(♦... Factory setting)
Setting Description
♦
Standard
Lower control 01
Slightly warmer control 02
Warmer control 03
Function
Number
31
Setting
Value
00
Auto Restart
• Enable or disable automatic system restart after a power
outage.
Setting Description
♦
Yes
No 01
(♦... Factory setting)
Function
Number
40
Setting
Value
00
* Auto restart is an emergency function such as for
power failure etc. Do not start and stop the indoor unit
by this function in normal operation. Be sure to operate by the control unit, or external input device.
Indoor room temperature sensor switching function
(Only for wired remote controller)
• The following settings are needed when using the wired
remote controller temperature sensor.
(♦... Factory setting)
Setting Description
♦
* If setting value is “00” :
Room temperature is controlled by the indoor unit temperature sensor.
* If setting value is “01” :
Room temperature is controlled by either indoor unit temperature sensor or remote controller unit sensor.
No
Yes 01
Function
Number
42
Setting
Value
00
Remote controller signal code
• Change the indoor unit Signal Code, depending on the
remote controllers.
(♦... Factory setting)
Setting Description
♦
Function
Number
A
B01
44
C02
D03
Setting
Value
00
External input control
•
“Operation/Stop” mode or “Forced stop” mode can be elected.
(♦... Factory setting)
Setting Description
♦
Operation/Stop mode
(Setting forbidden) 01
Forced stop mode 02
Function
Number
46
Setting
Value
00
Setting record
• Record any changes to the settings in the following table.
Setting Description Setting Value
Filter sign
Cooler room temperature correction
Heater room temperature correction
Auto restart
Indoor room temperature sensor
switching function
Remote controller signal code
External input control
After completing the FUNCTION SETTING, be sure to turn off
the power and turn it on again.
En-15
9318739022_IM.indb Sec1:159318739022_IM.indb Sec1:15 2010-11-2 15:25:222010-11-2 15:25:22
Page 16
14.
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. An error display is displayed only during operation.
Error display
OPERATION
lamp
(green)
TIMER
lamp
(orange)
ECONOMY
lamp
(green)
(1) (1)
(1) (2)
(1) (5)
(2) (1)
(2) (2)
(2) (3)
(2) (4)
(3) (2) Indoor unit
(3) (5) Indoor unit
(4) (1) Indoor unit
(4) (2) Indoor unit
(5) (1) Indoor unit
(5) (3) Indoor unit
(5) (15) Indoor unit
(6) (2) Outdoor unit
(6) (3) Outdoor unit
(6) (4) Outdoor unit
(6) (5) Outdoor unit
(6) (10) Outdoor unit
(7) (1) Outdoor unit
(7) (2) Outdoor unit
(7) (3) Outdoor unit
(7) (4) Outdoor unit
(7) (5) Outdoor unit
(7) (7) Outdoor unit
(8) (2) Outdoor unit
(8) (3) Outdoor unit
(8) (4) Outdoor unit
(8) (6) Outdoor unit
(9) (4) Outdoor unit
(9) (5) Outdoor unit
(9) (7) Outdoor unit
(9) (9) Outdoor unit
(10) (1)
(10) (3)
(10) (5)
(13) (2) Branch box
Wired
remote
controller
Error code
Mode DESCRIPTION Remark
•
Communication
Communication
Communication
Function setting
Function setting
Function setting
Function setting
Serial communication error
Remote controller
communication error
Scan error
Initial setting error
Indoor unit capacity error
Connection disabled (series error)
Connection unit number error
Indoor unit main PCB error
Manual auto switch error
Room error
Indoor unit Heat Ex. sensor error
Indoor unit fan motor error
Water Drain error
Indoor unit error
Outdoor unit main PCB error
Inverter PCB error
Active fi lter error,
PFC circuit error
IPM error
Display panel error
Discharge thermistor error
Compressor thermistor error
Outdoor unit Heat Ex.
Sensor error
Outdoor thermistor error
Suction Gas thermistor error
Heat sink thermistor error
Sub-cool Heat Ex. gas
thermistor error
Liquid pipe thermistor error
Current sensor error
Pressure sensor error
Trip detection
compressor motor control error
Outdoor unit fan motor 1 error
4-way valve error
Refrigerant system
Refrigerant system
Refrigerant system
Discharge temperature 1 error
Compressor temperature error
Pressure error 2
Unit fl ow divider error
When the indoor unit cannot receive the signal from the branch unit
•
When the branch unit cannot receive the signal from the indoor unit
•Wired remote controller communication error
•
Check operation incompletion error (normally, operation disabled)
•Wiring mistake
•Indoor unit capacity error
•Combination error
•Connection unit number error (indoor unit)
•Connection unit number error (branch unit)
•Indoor unit PCB Model information error
•Manual auto switch error
•Inlet thermistor error
•Indoor unit Heat Ex. Middle thermistor error
•Main fan motor lock error
•Main fan motor revolution speed error
•Drain pump error
•Indoor unit error
•Outdoor unit PCB Model information error
•Outdoor unit PCB microcomputer communication error
•Inverter error
•Voltage error stoppage permanently
•Voltage error (can restore)
•Over current protected operation stoppage permanently
•PFC hardware error
•Trip terminal L error
•Microcomputers communication error
•Discharge thermistor 1 error
•Compressor thermistor 1 error
•Outdoor unit Heat Ex. liquid thermistor error
•Outdoor thermistor error
•Suction Gas thermistor error
•Heat sink thermistor error
•Sub-cool Heat Ex. gas inlet thermistor error
•Sub-cool Heat Ex. gas outlet thermistor error
•Liquid pipe thermistor 1 error
•Current sensor 1 error (stoppage permanently)
•Discharge pressure sensor error
•Suction pressure sensor error
•High pressure switch 1 error
•Trip detection
•Rotor position detection error (stoppage permanently)
•Duty error
•4-way valve error
•Discharge temperature 1 error
•Compressor 1 temperature error
•Low pressure error
•EEPROM access error
•Equipment type information error
•Serial communication error to outdoor unit
•Branch units serial communication error
•Serial communication error to indoor unit
•Liquid pipe thermistor error
•Gas pipe thermistor error
•Expansion valve full closure operation error
•Remote controller communication error
•Branch unit error
•Display mode : 0.5s ON / 0.5s OFF, ( ) : Number of fl ashing, : 0.1s ON / 0.1s OFF
En-16
9318739022_IM.indb Sec1:169318739022_IM.indb Sec1:16 2010-11-2 15:25:232010-11-2 15:25:23
Page 17
Wired Remote Controller Display (Option)
Error code
15. CUSTOMER GUIDANCE
Explain the following to the customer in accordance with the
operating manual:
(1) Starting and stopping method, operation switching,
temperature adjustment, timer, air fl ow switching, and
other remote controller operations.
(2) Air fi lter removal and cleaning, and how to use the air
louvers.
(3) Give the operating manual to the customer.
En-17
9318739022_IM.indb Sec1:179318739022_IM.indb Sec1:17 2010-11-2 15:25:282010-11-2 15:25:28
Page 18
9318739022_IM.indb Sec1:189318739022_IM.indb Sec1:18 2010-11-2 15:25:282010-11-2 15:25:28
Loading...