General ABH30L, ABH30LBAG, AOH30LMBWL, ABH36L, ABH36LBAG Installation Manual
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Refrigerant
GOOD
BAD BAD
R410A
Ceiling Suspension Type
SPLIT TYPE AIR CONDITIONER
INSTALLATION INSTRUCTION
SHEET
(PART NO. 9366160052)
For authorized service personnel only.
WARNING
CAUTION
The basic installation work procedures are the same as conventional refrigerant models.
However, pay careful attention to the following points:
1 Since the working pressure is 1.6 times higher than that of conventional refrigerant models, some of the piping and
installation and service tools are special. (See the table below.)
Especially, when replacing a conventional refrigerant model with a new refrigerant R410A model, always replace the
conventional piping and flare nuts with the R410A piping and flare nuts.
2 Models that use refrigerant R410A have a different charging port thread diameter to prevent erroneous charging with
conventional refrigerant and for safety. Therefore, check beforehand. [The charging port thread diameter for R410A is
1/2 UNF 20 threads per inch.]
3 Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant models. Also, when
storing the piping, securely seal the openings 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 side whose composition is stable.
5 When moving, if the compressor stops during pump down, close the valve immediately.
Special tools for R410A
Tool name
Gauge manifold
Charge hose
Vacuum pump
Gas leakage detector
Copper pipes
It is necessary to use seamless copper pipes and it is desirable that the amount of
residual oil is less than 40 mg/10 m. Do not use copper pipes having a collapsed,
deformed or discolored portion (especially on the interior surface). Otherwise, the
expansion valve or capillary tube may become blocked with contaminants.
As an air conditioner using R410A incurs pressure higher than when using
conventional 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 that in the table even when it is available on
the market.
This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of
the user.
This mark indicates procedures which, if improperly performed, might possibly result in personal harm to
the user, or damage to property.
This air conditioner uses new refrigerant HFC (R410A).
Pressure is high and cannot be measured with a conventional gauge. To prevent erroneous mixing of other
refrigerants, the diameter of each port has been changed.
It is recommended the gauge with seals –0.1 to 5.3 MPa (–76 cmHg to 53 kgf/cm
3.8 MPa (–76 cmHg to 38 kgf/cm
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.
2
) for low pressure.
Contents of change
2
) for high pressure. –0.1 to
Thicknesses of Annealed Copper Pipes (R410A)
Pipe outside diameter
6.35 mm (1/4 in.)
9.52 mm (3/8 in.)
12.70 mm (1/2 in.)
15.88 mm (5/8 in.)
19.05 mm (3/4 in.)
Thickness
0.80 mm
0.80 mm
0.80 mm
1.00 mm
1.20 mm
STANDARD PARTS
The following installation parts are furnished.
Use them as required.
INDOOR UNIT ACCESSORIES
Name and Shape
Remote
control unit
Battery (penlight)
Remote
control
unit holder
Tapping screw
(ø3 × 12)
Drain hose insulation
VT wire
Coupler heat insulator (large)
Coupler heat insulator (small)
Nylon fastener
Special nut A
(large flange)
Special nut B
(small flange)
Installation
template
Auxiliary pipe assembly
Q’ty
Use for air conditioner
operation
1
For remote control unit
2
For mounting the remote
control unit
1
For remote control unit
holder installation
2
Adhesive type 70 × 230
1
For fixing the drain hose
L 280 mm
1
For indoor side pipe joint
(Gas pipe)
2
For indoor side pipe joint
1
(Liquid pipe)
Large
For fixing the coupler heat
4
insulator
Small
4
For installing indoor unit
4
For installing indoor unit
4
For positioning the indoor
1
unit
For connecting the piping
1
Application
OPTIONAL PARTS
The following options are available.
••
• DRAIN PUMP UNIT: UTR-DPB241 (P/N 9034087001)
••
INSTALLATION PROCEDURE
1
REMOVE THE INTAKE GRILLE AND SIDE COVER
(1) Remove the two Air filters.
(2) Remove the two Intake grilles.
(3) Remove the Side cover A (Right side) and Side cover B (Right and
(4)
Tapping screw
2
You can use the accessory template to help you install the indoor unit.
The template helps you determine the appropriate locations for suspension bolts and pipe opening (drain pipe and connection cord).
1. LOCATION OF CEILING SUSPENSION BOLTS
PREPARING INDOOR UNIT
INSTALLATION
• For 4 Left rear drain and 5 Left drain: Remove air filters and intake
grilles at three places. (Refer to “2 INDOOR UNIT INSTALLATION”.)
Left side).
• For 5 Left drain : Remove both the Side cover A (Right and Left
side). (Refer to “2 INDOOR UNIT INSTALLATION”.)
This air conditioner can be set up to intake fresh air. For information
about how to install for fresh-air intake, refer to “0 FRESH-AIR INTAKE”.
Air filter
Intake grille
INDOOR UNIT
Side cover B
(Left side)
Side cover A (Right side)
Side cover B (Right side)
INDOOR UNIT INSTALLATION
Drilling position for Suspension bolt
Ceiling
Wall
Template
30 mm Suspension bolt pitch 1600 mm
INDOOR UNIT (TOP VIEW)
INDOOR UNIT
Drilling position for piping
Suspension bolt should
extend outward 30 to 75 mm.
30 mm
Dimensions
(Space Required
for Installation)
10 mm
155 mm
300 mm
[For Half-Concealed Installation]
••
• Suspension-bolt pitch should be as shown in the figure.
••
40 mm Ceiling Opening: 1580 mm 40 mm
Ceiling panel
Ceiling Opening: 640 mm
INDOOR UNIT
15 mm
Ceiling panel
Suspension bolt should
extend outward 30 to 50 mm.
2. SELECT PIPING DIRECTION
Select connection piping and drain piping directions.
5 Left piping
(Drain pipe only)
4 Left rear piping
(Drain pipe only)
INDOOR UNIT (TOP VIEW)
2 Top piping
(Connection pipe only)
1 Right rear piping
Cut off the piping outlet cutting groove
with a hacksaw, etc.
[FOR 4 Left rear piping, 5 Left piping]
••
• Transfer the Drain cap and Drain cap seal.
••
Drain cap seal
Drain cap
Indoor unit
Drain pan
Push cap all the way on
(as far as it will go).
Drain cap seal
Drain cap
3. DRILLING THE HOLES AND ATTACHING THE
SUSPENSION BOLTS
(1) Drill ø25 mm holes at the suspension-bolt locations.
(2) Install the bolts, then temporarily attach Special nuts A and B and a
normal M10 nut to each bolt. (The two special nuts are provided with
the unit. The M10 nut must be obtained locally.) Refer to the figure.
Bolt Strength 980 to 1470 N (100 to 150 kgf)
Ceiling panel
10 to 15 mm
Special nut A (Included)
Special nut B (Included)
M10 Nut (Obtained locally)
3 Right
piping
[If using anchor bolts]
(1) Drill holes for anchor bolts at the locations at which you will set the
suspension bolts. Note that anchor bolts are M10 bolts (to be obtained locally).
(2) Install the anchor bolts, then temporarily attach special nut “B” (in-
cluded) and a locally-procured M10 nut to each of the bolts.
Anchor-Bolt Strength 980 to 1470 N (100 to 150 kgf)
Ceiling
Special nut B
(Included)
M10 Nut
(Obtained locally)
M10 Anchor Bolt
(Obtained locally)
10 to 15 mm
4. INSTALLING THE INDOOR UNIT
(1) Lift unit so that suspension bolts pass through the suspension fittings
at the sides (four places), and slide the unit back.
Ceiling
Wall
Ceiling panel
Wall
INDOOR UNIT
(2) Fasten the indoor unit into place by tightening-up the special “B” bolts
and the M10 nuts. Make sure that unit is secure and will not shift back
and forth.
[For Half-Concealed Installation]
When installing the indoor unit in a semi-concealed orientation, make sure
to reinforce the insulation of the unit on all sides. Drops of water may fall
from the unit if it is not thoroughly insulated.
Glass wool insulate
(10 to 20 mm thick)
INDOOR UNIT
(Top view)
Wall
Ceiling panel
CAUTION
In order to check the drainage, be sure to use a level
during installation of the indoor unit. If the installation site
of the indoor unit is not level, water leakage may occur.
5. DRAIN PIPING
CAUTION
Install the drain pipe in accordance with the instructions
in this installation instruction sheet and keep the area
warm enough to prevent condensation. Problems with the
piping may lead to water leaks.
••
• Install the drain pipe with downward gradient (1/50 to 1/100) and so
••
there are no rises or traps in the pipe.
••
• Use general hard polyvinyl chloride pipe (VP25) [outside diameter
••
38 mm].
••
• During installation of the drain pipe, be careful to avoid applying
••
pressure to the drain port of the indoor unit.
••
• When the pipe is long, install supporters.
••
••
• Do not perform air bleeding.
••
••
• Always heat insulate (8 mm or over thick) the indoor side of the drain
••
pipe.
Drain pipe
Arrange the drain pipe
lower than this portion.
Lifted up
Wave
End in water
Supporter
(1) Install insulation for the drain pipe.
Cut the included insulation material to an appropriate size and adhere
it to the pipe.
Indoor unit (drain port)
Indoor unit
(2) If “1 Right rear piping” : fasten the drain pipe with VT wire so that the
pipe slopes correctly within the indoor unit.
Indoor unit (rear view)
1.5 to 2 m
Insulation for drain pipe
(To be obtained locally. Length
should be at least 8 mm.)
Drain pipe insulation (accessories)
Drain pipe insulation
No gap
10 mm or over
VT wire
Drain pipe
Drain pipe
Drain hose
3
CONNECTING THE PIPE
CAUTION
1 Do not use mineral oil on flared part. Prevent mineral
oil from getting into the system as this would reduce
the lifetime of the units.
2 While welding the pipes, be sure to blow dry nitrogen
gas through them.
3 The maximum lengths of this product are shown in the
table. If the units are further apart than this, correct
operation can not be guaranteed.
1. FLARING
(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 the burrs.
(3) Insert the flare nut (always use the flare nut attached to the indoor
and outdoor units respectively) onto the pipe and perform the flare
processing with a flare tool.
Use the special R410A flare tool, or the conventional flare tool.
Check if [L] is flared uniformly
and is not cracked or scratched.
Die
A
Pipe
Pipe outside diameter
6.35 mm (1/4 in.)
9.52 mm (3/8 in.)
12.70 mm (1/2 in.)
15.88 mm (5/8 in.)
19.05 mm (3/4 in.)
Pipe outside diameter
6.35 mm (1/4 in.)
9.52 mm (3/8 in.)
12.70 mm (1/2 in.)
15.88 mm (5/8 in.)
19.05 mm (3/4 in.)
When using conventional 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.
Width across flats
Pipe outside
diameter
6.35 mm (1/4 in.)
9.52 mm (3/8 in.)
12.70 mm (1/2 in.)
15.88 mm (5/8 in.)
19.05 mm (3/4 in.)
Dimension A
Flare tool for R410A, clutch type
0 to 0.5
Dimension B
9.1
13.2
16.6
19.7
24.0
Width across flats
of Flare nut
17 mm
22 mm
26 mm
29 mm
36 mm
(mm)
0
(mm)
-0.4
B
CONNECTION PIPE REQUIREMENT
CAUTION
The maximum lengths of this product are shown in the following table. If the units are further apart than this, correct operation can not be guaranteed.
Diameter
Liquid
9.52 mm (3/8 in.)
••
• Use pipe with water-resistant heat insulation.
••
Gas
15.88 mm (5/8 in.)
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 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 70-80%, 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).
ELECTRICAL REQUIREMENT
••
• Electric wire size:
••
Connection cord (mm )
MAX.
2.5
••
• Always use H07RN-F or equivalent to the connection cord.
••
••
• Install the disconnect device with a contact gap of at least 3 mm in all poles nearby the units. (Both indoor unit and outdoor unit)
••
2
MIN.
1.0
SELECTING THE MOUNTING POSITION
Decide the mounting position with the customer as follows:
WARNING
Select installation locations that can properly support the weight of the indoor and outdoor units. Install the units securely so
that they do not topple or fall.
CAUTION
1 Do not install where there is the danger of combustible gas leakage.
2 Do not install the unit near heat source of heat, steam, or flammable gas.
3 If children under 10 years old may approach the unit, take preventive measures so that they cannot reach the unit.
INDOOR UNIT
(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) Do not install the unit where it will be exposed to direct sunlight.
(4) Install the unit where connection to the outdoor unit is easy.
(5) Install the unit where the drain pipe can be easily installed.
(6) Take servicing, etc., into consideration and leave the spaces shown
in the figure. Also install the unit where the filter can be removed.
Ceiling
INDOOR UNIT
[FOR HALF CONCEALED INSTALLATION]
INDOOR UNIT
80 mm
or over
Ceiling panel
10 mm
or over
Ceiling panel
150 mm
or over
2. BENDING PIPES
The pipes are shaped by your hands. 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 three times.
CAUTION
1 To prevent breaking of the pipe, avoid sharp bends.
Bend the pipe with a radius of curvature of 150 mm or
over.
2 If the pipe is bent repeatedly at the same place, it will
break.
3. CONNECTION PIPES
Indoor unit
(1) Detach the caps and plugs from the pipes.
CAUTION
1 Be sure to apply the pipe against the port on the in-
door unit correctly. If the centering is improper, the flare
nut cannot be tightened smoothly. If the flare nut is
forced to turn, the threads will be damaged.
2 Do not remove the flare nut from the indoor unit pipe
until immediately before connecting the connection
pipe.
(2) Centering the pipe against port on the indoor unit, turn the flare nut
with your hand.
To prevent gas leakage, coat the flare
surface with alkylbenzene oil (HAB).
Do not use mineral oil.
(3) Remove the filter guide.
Indoor unit
(4) Attach the connection pipe.
Indoor unit
Filter guide
Connection pipe (Gas)
Connection pipe (Liquid)
• For 2 Top piping and 3 Right piping connections, use the Auxiliary
pipe (Gas pipe) provided.
2 Top piping
Connection pipe (Gas)
Indoor unit (rear)
Connection pipe (Gas)
3 Right piping
(5) When the flare nut is tightened properly by your hand, use a torque
wrench to finally tighten it.
Body side
Auxiliary pipe (Gas pipe)
Holding spanner
Torque wrench
CAUTION
Hold the torque wrench at its grip, keeping it in the right
angle with the pipe, in order to tighten the flare nut
correctly.
Flare nut Tightening torque
6.35 mm (1/4 in.) dia.
9.52 mm (3/8 in.) dia.
12.70 mm (1/2 in.) dia.
15.88 mm (5/8 in.) dia.
19.05 mm (3/4 in.) dia.
14 to 18 N·m (140 to 180 kgf·cm)
33 to 42 N·m (330 to 420 kgf·cm)
50 to 62 N·m (500 to 620 kgf·cm)
63 to 77 N·m (630 to 770 kgf·cm)
100 to 110 N·m (1000 to 1100 kgf·cm)
4. HEAT INSULATION ON THE PIPE JOINTS
(INDOOR SIDE ONLY)
After checking for gas leaks, insulate by wrapping insulation around the
two parts (Gas and Liquid) of the indoor unit coupling, using the coupler
heat insulation.
After installing the coupler heat insulation, wrap both ends with vinyl tape
so that there is no gap.
Secure both ends of the heat insulation material using nylon fasteners.
And finally fix connection pipe (Liquid) to connection pipe (Gas) by rolling
vinyl tape over coupler heat insulation (Gas) and coupler heat insulation
(Liquid).
Coupler heat insulation (Large)
Indoor unit
Coupler heat insulation (Small)
Indoor unit
Indoor unit
• When using an auxiliary pipe, make sure that the fastener used is insulated in the same way.
There should be no gaps between the insulation and the
product.
Connection pipe (Gas)
Connection pipe (Liquid)
Nylon fastener (Large)
Nylon fastener (Small)
Connection pipe (Gas)
Connection pipe (Liquid)
Vinyl tape
CAUTION
No gap
Coupler heat
insulation
4
ELECTRICAL WIRING
WARNING
1 Before starting work, check that power is not being
supplied to the indoor unit and outdoor unit.
2 Match the terminal board numbers and connection
cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the electric
parts.
3 Connect the connection cords firmly to the terminal
board. Imperfect installation may cause a fire.
4 Always fasten the outside covering of the connection
cord with the cord clamp. (If the insulator is chafed,
electric leakage may occur.)
5 Always connect the ground wire.
HOW TO CONNECT WIRING TO THE
TERMINALS
A. For solid core wiring (or F-cable)
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
the insulation to about 25 mm to expose the solid wire.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal
board.
(3) Using pliers, bend the solid wire to form a loop suitable for the
terminal screw.
(4) Shape the loop wire properly, place it on the terminal board and
tighten securely with the terminal screw using a screwdriver.
B. For strand wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
the insulation to about 10 mm to expose the strand wiring.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal
board.
(3) Using a round terminal fastener or pliers, securely clamp a round
terminal to each stripped wire end.
(4) Position the round terminal wire, and replace and tighten the
terminal screw using a screwdriver.
Strip 25 mm
Wire
A. Solid wire
Insulation
Loop
Screw with
special washer
Round terminal
Terminal
board
Wire
Terminal block
B. Strand wire
Strip 10 mm
Screw with
special washer
Round
terminal
Round
terminal
1. CONNECTION DIAGRAMS
Control line
Outdoor unit
Indoor unit
side terminal
Power line
2. CONNECTION CORD PREPARATION
60 mm
For earth
Power supply cord
70 mm or more
or connection cord
3. INDOOR UNIT
CAUTION
Use care not to mistake the power supply cord and
connection wires when installing.
(1) Remove the two tapping screws and pull the control box downward.
Indoor unit
Control box
Tapping screw
(2) Remove the Cover A and install the Connection cord.
(3) Reattach Cover A. Then fasten the control box back into its original
position using the two tapping screws.
Control box
Cover A
(4) After wiring is complete, clamp the Connection cord with the Cord
clamp.
(5) Attach the connection cord and cable clips. Make sure that they are
positioned so that they will not interfere with opening and closing of
the intake grille or with removal and installation of the air filters.
Control box
Connection cord
Terminal board
Earth screw
Cord clamp
To outdoor unit
Connection cord
Connection cord
Cable clip
80 mm
or over
Ceiling
10 mm
or over
150 mm
or over
- Continued on back -
5
JM1
JM2
JM3
SWING SWING TIMER
OPERATION
MANUAL
AUTO
REMOTE CONTROL UNIT
INSTALLATION
CAUTION
1 Check that the indoor unit correctly receives the
signal from the remote control unit, then install the
remote control unit holder.
2 Select the remote control unit 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.
• Remote control unit settings
(1) Press the START/STOP button and display only the clock.
(2) Press the MASTER CONTROL button continuously for more than five
seconds to display the current signal code.
6
(1) Install the filter guide.
(2) Install the intake grilles.
(3) Install side covers A and B (if the unit is installed in a half-concealed
orientation, only install side cover A).
(4) Install the air filters.
7
CUSTOMER GUIDANCE
FINISHING
8
••
• Perform test operation and check items 1 and 2 below.
••
••
• For the operation method, refer to the operating manual.
••
••
• The outdoor unit may not run, depending on the room temperature.
••
In this case, the ‘TEST RUN’ signal is received during air conditioner
operation (use a metallic object to short the two metal contacts under
the battery compartment lid and send the ‘TEST RUN’ signal from the
remote control unit).
TEST RUNNING
Short the two metal contacts
under the battery compartment lid.
1. REMOTE CONTROL UNIT HOLDER INSTALLATION
••
• Install the remote control unit holder to a wall or pillar with the tapping
••
screws.
Remote control
unit holder
Tapping
screws
(small)
Remote Control Unit
holder fixing
2 Push
Remote
control unit
1 Set
Remote Control
Unit mounting
2. SWITCHING REMOTE CONTROL UNIT SIGNAL
CODE
Confirm the setting of the remote control unit signal code and the printed
circuit board setting.
If these are not confirmed, the remote control unit cannot be used to
operate for the air conditioner.
Jumper wire
JM2
Connect
Connect
Disconnect
Disconnect
JM3
Connect
Disconnect
Connect
Disconnect
Remote control unit
signal code
A (Primary setting)
B
C
D
(3) Change the signal code with the
(4) Press the MASTER CONTROL button again to return to the clock
display and change the signal code.
button ( ).
Explain the following to the customer in accordance with the operating
manual:
(1) Starting and stopping method, operation switching, temperature
adjustment, timer, air flow adjustment, and other remote control unit
operations.
(2) Air filter removal and cleaning.
(3) Give the operating manual and installation instruction sheet to the
customer.
••
• To end test operation, press the remote control unit START/STOP
••
button.
(When the air conditioner is run by pressing the remote control unit
TEST RUN button, the OPERATION and TIMER lamps will simultaneously flash slowly.)
(1) Is operation of each button on the remote control unit normal?
(2) Does each lamp light normally?
(3) Do not air flow direction flap and louvers operate normally?
(4) Is the drain normal?
Indoor unit
Printed circuit board
9
Operation can be checked by lighting and flashing of the display section
OPERATION, TIMER and VERTICAL SWING lamps.
Perform judgment in accordance with the following.
AN ERROR DISPLAY
VERTICAL SWING lamp (Orange)
TIMER lamp (Green)
OPERATION lamp (Red)
10
(1) Open up the knockout hole for the fresh-air intake, as shown in the
figure. (If using half-concealed installation, open up the top knockout
hole instead.)
FRESH-AIR INTAKE
For half concealed
installation
Indoor unit
• Test running
When the air conditioner is run by pressing the remote control unit test
run button, the OPERATION, TIMER and VERTICAL SWING lamps
flash slowly at the same time.
• Error
The OPERATION, TIMER and VERTICAL SWING lamps operate as
follows according to the error contents.
OPERATION
lamp (RED)
(2 times)
(2 times)
(3 times)
(3 times)
(4 times)
(5 times)
(5 times)
(6 times)
TIMER lamp
(GREEN)
(2 times)
(3 times)
(3 times)
(4 times)
(4 times)
(5 times)
(5 times)
(6 times)
(7 times)
: 0.1s ON/0.1s OFF (flash) : OFF
: 0.5s ON/0.5s OFF (flash)
SWING lamp
(ORANGE)
Indoor EEPROM abnormal
Outdoor EEPROM abnormal
Indoor room temperature sensor
open
Indoor room temperature sensor
shortcircuited
Indoor heat exchanger temperature
sensor open
Indoor heat exchanger temperature
sensor shortcircuited
Float switch operated
Indoor signal abnormal
Outdoor signal abnormal
Indoor fan abnormal
Outdoor power source connection
abnormal
Outdoor heat exchanger
temperature sensor open
Outdoor heat exchanger
temperature sensor shortcircuited
Outdoor temperature sensor open
Outdoor temperature sensor
shortcircuited
Outdoor discharge pipe temperature
sensor or compressor temperature
sensor open
Outdoor discharge pipe temperature
sensor or compressor temperature
sensor shortcircuited
Outdoor high pressure abnormal
Outdoor discharge pipe temperature
or compressor temperature sensor
abnormal
Error contents
CAUTION
1 When removing the cabinet (iron plate), be careful not
to damage the indoor unit internal parts and surrounding area (outer case).
2 When processing the cabinet (iron plate), be careful
not to injure yourself with burrs, etc.
(2) Fasten the round flange (optional) to the fresh-air intake, as shown in
the figure. (If using half-concealed installation, attach to the top.)
Round duct (option parts)
[After completing “2 INDOOR UNIT INSTALLATION”...]
(3) Connect the duct to the round flange.
(4) Seal with a band and vinyl tape, etc. so that air does not leak from the
connection.
Duct
PART NO. 9366160052
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