Friedrich MR24DY3F User manual

SPLIT TYPE ROOM AIR CONDITIONER
INSTALLATION INSTRUCTION
SHEET
(PART NO. 9374747054)
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 efficiently.
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: This symbol refers to a hazard or unsafe practice which
can result in severe personal injury or death.
CAUTION:
This symbol refers to a hazard or unsafe practice which
can result in personal injury and the potential for product
or property damage.
•Hazel alerting symbols
Electrical
Safety / alert
If Necessary, Get Help
These instructions are all you need for most installation sites and mainte-
nance 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.
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 con-
nection points and a possible fire hazard.
When Transporting
Be careful when picking up and moving the indoor and outdoor units. Get
a partner to help, and bend your knees when lifting to reduce strain on
your back. Sharp edges or thin aluminum fins on the air conditioner can
cut your fingers.
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 floors.
...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 abnor-
mal vibration.
...In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a metal frame. Pro-
vide a suitable air baffle.
...In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher than drifting
snow. Provide snow vents.
When Connecting Refrigerant Tubing
•Keep all tubing runs as short as possible.
•Use the flare method for connecting tubing.
•Apply refrigerant lubricant to the matching surfaces of the flare and
union tubes before connecting them, then tighten the nut with a torque
wrench for a leak-free connection.
•Check carefully for leaks before starting the test run.
NOTE:
Depending on the system type, liquid and gas lines may be either narrow
or wide. Therefore, to avoid confusion the refrigerant tubing for your par-
ticular model is specified as either “small” or “large” rather than as “liquid”
or “gas”.
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.

5 cm or over
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 threads per inch.]
(3) Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrige-
rant 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 side whose composition is
stable.
Special tools for R410A
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/10m. Do not
use copper pipes having a collapsed, deformed or discolored
portion (especially on the interior surface). Otherwise, the ex-
pansion value or capillary tube may become blocked with con-
taminants.
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 table. Never use copper pipes thinner than 0.8 mm even
when it is available on the market.
Contents of change
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 (-1 to 53 bar) for high pressure.
-0.1 to 3.8 MPa (-1 to 38 bar) 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.
Thicknesses of Annealed Copper Pipes
Thickness (mm)
Nominal
diameter
1/4
3/8
1/2
Outer diameter
(mm)
6.35
9.52
12.70
R410A
0.80
0.80
0.80
[ref.] R22
0.80
0.80
0.80
(1) Do not use the existing (for R22) piping and flare nuts.
• If the existing materials are used, the pressure inside the refrigerant cycle will rise and cause breakage, injury,
etc. (Use the special R410A materials.)
(2) When installing and relocating the air conditioner, do not mix gases other than the specified refrigerant (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 breakage, injury, etc.
WARNING
This air conditioner uses new refrigerant HFC (R410A).
Tool name
Gauge manifold
Charge hose
Vacuum pump
Gas leakage detector

GENERAL
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. TYPE OF COPPER PIPE AND INSULATION MATERIAL
Copper tubing for connecting the outdoor unit to the indoor
unit and insulation material is available for purchase locally.
When you purchase them, please specify the following.
A. Deoxidized annealed copper pipe for refrigerant piping as:
Small pipe Large pipe
Outer diameter Thickness Outer diameter Thickness
9-12 type 1/4" (6.35 mm) 1/32" (0.80 mm) 3/8" (9.52 mm) 1/32" (0.80 mm)
18 type 1/4" (6.35 mm) 1/32" (0.80 mm) 1/2" (12.70 mm) 1/32" (0.80 mm)
Cut each pipe to the appropriate length +12" (30 cm)
to 16" (40 cm) to dampen vibration between units.
B. Foamed polyethylene insulation for copper pipes as
required to precise length of piping. Wall thickness
of the insulation should not be less than 5/16" (8 mm).
C. Use insulated copper wire for field wiring.
CAUTION
Check local electrical codes and regulations
before obtaining wire. Also, check any specified
instructions or limitations.
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
Connection pipe assembly
Connection cord (3-conductor) + Earth
Wall pipe
Decorative tape
Vinyl tape
Wall cap
Saddle
Drain hose
Tapping screws
Sealant
Name Q’ty
1
1
1
1
1
1
1 set
1
1 set
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.)
STANDARD ACCESSORIES
The following installation accessories are supplied. Use them as re-
quired.
INDOOR UNIT ACCESSORIES
Name and Shape Q’ty
Air cleaning filter
Air cleaning filter frame
Tapping screw (big)
Tapping screw (small)
Cloth tapeWall hook bracket
Remote
control unit
Battery (penlight)
Remote control
unit holder
1
Q’ty
1
2
1
1
8
2
2
2
Name and Shape

SELECTING THE MOUNTING
POSITION
Decide the mounting position with the customer as follows:
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) Install the unit near an electric outlet or special 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 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 figure. Also install the unit where the filter can be removed.
WARNING
Install at a place that can withstand the weight of the
indoor and outdoor units and install positively so that
the units will not topple or fall.
ELECTRICAL REQUIREMENT
Always make the air conditioner power supply a special branch cir-
cuit and provide a special switch and receptacle. Do not extend the
power cord.
CAUTION
Use 14AWG for connection cord.
CAUTION
(1) Do not install where there is the danger of com-
bustible gas leakage.
(2) Do not install near heat sources.
(3) If children under 10 years old may approach the
unit, take preventive measures so that they can-
not reach the unit.
INSTALLATION DIAGRAM OF
INDOOR UNITS
2-2/5" (6 cm) or over
Wall hook bracket
2" (5 cm)
or over
3- 3/5" (9 cm)
or over
60" (150 cm) or over
(Wall cap)
Remote
control unit
Tapping
screw
(small)
Remote
control
unit holder
95" (240 cm)
or over
Connection Cord
14AWG
[Indoor unit piping direction]
The piping can be connected in the 6 directions indicated. When the
piping is connected in direction 2,3,4or 5cut along the piping
groove in the side of the front cover with a hacksaw.
(Rear)
1Rear outlet
2Right outlet
3Bottom outlet 4Left bottom
outlet
5Left
outlet
6Left rear
outlet

Indoor unit drain hose (bottom)
Pipe (top)
Bottom
piping
(1) Cut a 3-2/16" (80 mm) diameter hole in the wall at the position
shown in figure.
(2) When cutting the wall hole at the inside of the installation
frame, cut the hole within the range of the left and right center
marks 3/8" (10 mm) below the installation frame.
When cutting the wall hole at the outside of the installation frame,
cut the hole at least 3/8" (10 mm) below less.
(3) Cut the hole so that the outside end is lower 3/16" to 3/8" (5 to 10 mm)
than the inside end.
(4) Always align the center of the wall hole. If misaligned, water leak-
age 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. (The connection pipe is supplied in the installation set.)
(6) For left piping and right piping, cut the hole a little lower so that
drain water will flow freely.
Fasten with
vinyl tape
(Wall cap)
(Wall pipe)
(Inside) Wall (Outside)
Wall hook
bracket
Counter
weight
(1) Install the wall hook bracket so that it is correctly positioned hori-
zontally and vertically. If the wall hook bracket is titled, water will
drip to the floor.
(2) Install the wall hook bracket so that it is strong enough to with-
stand the weight of an adult.
●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.
WARNING
If the wall pipe is not used, the cord interconnecting
the indoor and outdoor units may touch metal and
cause electric leakage.
CAUTION
Install the wall hook bracket horizontally and perpen-
dicularly.
Wall hook bracket
Tapping screw
Center notch
String
[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
After removing the drain hose, do not forget to install
the drain cap.
Right piping
Bind with vinyl tape
For left outlet piping,
cut off the piping
outlet cutting groove
with a hacksaw.
Indoor unit
drain hose
Remove the drain cap
by pulling at the
projection at the end
of the cap with pliers, etc.
Insert the drain cap and drain
hose until it butts against the
drain port.
Drain cap
Indoor unit
drain hose
Drain cap
Lower
3-2/16" (80 mm)
dia. hole
Center mark
3/8" (10 mm)
or over
3/16 " to 3/8 "
(5 to 10 mm)
low
3/8" (10 mm)
or over
Lower
3-2/16" (80 mm) dia. hole
(A 2-9/16" (65mm)
diameter hole is possible
for the right-hand side.)
Hook
Rear piping
2. INSTALLING THE WALL HOOK BRACKET
INDOOR UNIT
1. CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING
3. FORMING THE DRAIN HOSE AND PIPE

4. CONNECTING THE PIPING
●For left piping and left rear piping, align the marks on the wall
hook bracket and shape the connection pipe.
●Bend the connection piping at a bend radius of 2- 3/4" (70 mm) or
more and install no more than 1- 3/8" (35 mm) 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.
After hooking the indoor unit to the top hook, hook the fittings of the
indoor unit to the two bottom hooks while lowering the unit and
pushing it against the wall.
Top hooks
Indoor unit (Fitting) Bottom hooks
Wall hook
bracket
Indoor unit
Wall hook bracket
(Spacer)
CONNECTION
(1) Install the outdoor unit wall cap (supplied with the optional in-
stallation set or procured at the site) to the wall pipe.
(2) Connect the outdoor unit and indoor unit piping.
(3) After matching the center of the flare surface and tightening the
nut hand tight, tighten the nut to the specified tightening torque
with a torque wrench. (Tighten the flare nut of the outdoor unit
3-way valve after air purging.)
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 onto the pipe and flare the pipe with a flaring
tool.
Check if [L] is flared uniformly
and is not cracked or scratched.
Pipe size
1/4" (6.35 mm) dia.
3/8" (9.52 mm) dia.
1/2" (12.70 mm) dia.
L dimension
1/16" (1.4 to 1.7 mm)
5/64" (1.8 to 2.0 mm)
11/128" (1.9 to 2.2 mm)
Flare nut tightening torque
Tighten with two wrenches.
Torque wrench
Wrench (fixed)
Flare nut
Indoor unit pipe Connection pipe
To prevent gas leakage,
coat the flare surface with
alkylbenzene oil (HAB).
Do not use mineral oil.
Connection pipe
(1/4" (6.35 mm) dia.)
Connection pipe
(3/8" (9.52 mm) dia.)
Align the marks.
Bend 2-3/4" (R70)
with a pipe bender
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 bent 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.
OK NO
Extend the pipe
by unwinding it.
Flare nut
1/4" (6.35 mm) dia.
3/8" (9.52 mm) dia.
1/2" (12.70 mm) dia.
Tightening torque
11.57 to 13.02 ft•lbs (160 to 180 kgf•cm)
21.70 to 30.38 ft•lbs (300 to 420 kgf•cm)
35.44 to 44.12 ft•lbs (490 to 610 kgf•cm)
Thin pipe
Thick pipe

(1) Match the terminal block numbers and connection
cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the elec-
tric parts.
(2) Connect the connection cords firmly to the terminal
block. Imperfect installation may cause a fire.
CAUTION
(3) Always fasten the outside covering of the connec-
tion cord with the cord clamp. (If the insulator is
chafed, electric leakage may occur.)
(4) Securely earth the power cord plug.
(5) Do not use the earth screw for an external connector.
Only use for interconnection between two units.
ELECTRICAL WIRING (INDOOR UNIT)
HOW TO THE INSTALL THE INTER-UNIT WIRE HARNESS
1. Remove the screws, then remove the conduit holder.
2. Fasten the inter-unit wire harness to the conduit holder using the lock nut.
3. Use the screws to install the conduit holder with which Inter-unit wire har-
ness is included.
4. Remove the screws, then remove the wire clamper.
5. Connect inter-unit wire harness to the terminal.
Refer to the wiring diagram.
6. Use the screws to install the wire clamper.
ELECTRICAL WIRING (INDOOR UNIT)
1. Remove the screws, then remove the cord clamp.
2. Connect connection cord to the terminal.
Refer to the wiring diagram
3. Use the screws to install the cord clamp.
A. For solid core wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
the insulation to about 15/16" (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 termi-
nal 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 3/8" (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 termi-
nal screw using a screwdriver.
A. Solid wire
Strip 15/16" (25 mm)
Insulation
Loop
B. Strand wire
Strip 3/8" (10 mm)
Round
terminal
Wire
Screw with
special washer
Round
terminal
Terminal
board
Terminal block
Wire
Screw with
special washer
Round
terminal
Screw
Cord clamp
SCREW
Screw
Cord clamp
(There is a
terminal block
inside.)
Connection cord
Connection cord
WASHER
CONDUIT PLATE
CONDUIT CONNECTOR
HOW TO CONNECT WIRING TO THE TERMINALS
G
1
3
2
208/230V
208/230V
208/230V
Indoor unit
Terminal
Grounding line
Control line
(Inter Unit)
Power line
DISCONNECT
SWITCH
(FIELD
SUPPLY)
To outdoor unit
CIRCUIT
BREAKER
(FIELD
SUPPLY)
INDOOR
WARNING
Disconnect switch and circuit breaker for over current pro-
tection given in the table below is to be installed between
the indoor unit and the outdoor unit.
15A 240 V - 5A
Disconnect switch Circuit breaker (or Fuse)

Wave
FINISHING
(1) Insulate between pipes.
●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 insula-
tion 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 cord 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 fit into the rear piping housing section.
(2) Temporarily fasten the connection cord 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 a saddle, 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.
Pipe
(Saddle)
(Outside wall cap)
(Sealer putty)
(Outdoors)
Connection pipe
(heat insulation)
Bind the pipes together
to that there is no gap.
Overlap the insulation
Indoor unit pipe
(heat insulation)
Vinyl tape
Pipe
Drain hose Cloth tape
Wrap with cloth tape
Left piping
Connection cord
Pipe
Drain hose
For connection from the left rear
Connection cord
Drain hose
Wall pipe
Connection pipe
Drain hose
GOOD BAD BAD BAD
Lifted up
Saddle
End in water
Wall
Check the following: View from indoors
- Continued on back -
FRONT PANEL REMOVAL AND INSTALLATION
THE 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.
THE INTAKE GRILLE INSTALLATION
(1) The fixing axle of the intake grille is installed on the Panel.
(2) Lay down the intake grille.
THE FRONT PANEL REMOVAL
(1) Remove intake grille (Reference the intake grille removal.)
(2) Remove four screws.
(3) The thumb is hung on the lower part as shown in the figure, and it
pulls to the front, pushing [-] mark , and bottom hooks (two posi-
tion) is removed from wall hook bracket.
(4) The front panel bottom is pulled to the front, and bottom hooks is
removed indoor unit.
(5) The front panel is pulled to the front, raising the upper surface,
and a front panel is removed.
THE FRONT PANEL INSTALLATION
(1) Firstly, fit the lower part of the front panel, and insert top and bot-
tom hooks. (Three top sides, six bottom sides)
(2) Four screws is attached.
(3) The intake grille is attached.
Bottom hole
(six positions)
Front panel
Indoor unit
Bottom hooks
(six positions)
Front panel
Bearing
Mounting shaft
Intake grille
Intake grille
Knob
Top holes (two sides)
Top hole (center)
Top hook (center)
Front panel
Top hooks
(two sides)
Indoor unit
Wall hook bracket
Front panel
Push
[-] mark
Push
Front panel
Screws
(4 positions)

TEST RUNNING
●Perform test operation and check items 1 and 2 below.
●For the operation method, refer to the operating manual.
●The outdoor unit, may not operate, depending on the room
temperature. In this case, press the test run button on the
remote control unit while the air conditioner is running. (With
the transmit section of the remote control unit facing the body,
press the TEST RUN button with the tip of a ball point pen.)
●To end test operation, press the remote control unit START/
STOP button. (When the air conditioner is run by pressing
the test run button, the OPERATION indicator lamp and TIMER
indicator lamp will simultaneously flash slowly.)
1. INDOOR UNIT
(1) Is operation of each button on the remote control unit
normal?
(2) Does each lamp light normally?
(3) Do the air flow-direction louver operate normally?
(4) Is the drain normal?
2. OUTDOOR UNIT
(1) Is there any abnormal noise and vibration during op-
eration?
(2) Will noise, wind, or drain water from the unit disturb
the neighbors?
(3) Is there any gas leakage?
•Error
The OPERATION, TIMER, AIR CLEAN or QUIET and COIL DRY
lamps operate as follows according to the error contents.
Error contents
Error display
CUSTOMER GUIDANCE
WARNING
(1) The rated voltage of this product is 208/230 V
AC 60 Hz.
(2) Before turning on the power, check if the
voltage is within the 187~253 V.
(3) Always use a special branch circuit and install a
special receptacle to supply power to the room
air conditioner.
(4) Use a circuit breaker and receptacle matched to
the capacity of the air conditioner.
(5) Do not extend the power cord.
(6) Perform wiring work in accordance with
standards so that the air conditioner can be
operated safely and positively.
(7) Install a leakage circuit breaker in accordance
with the related laws and regulations and elec-
tric company standards.
CAUTION
(1) The power source capacity must be the sum of
the air conditioner current and the current of
other electrical appliances. When the current
contracted capacity is insufficient, change the
contracted capacity.
(2) When the voltage is low and the air conditioner
is difficult to start, contact the power company
the voltage raised.
Explain the following to the customer in accordance with the
operating manual:
(1) Starting and stopping method, operation switching, tempera-
ture adjustment, timer, air flow switching, and other remote
control unit operations.
(2) Air filter removal and cleaning, and how to use the air louvers.
(3) Give the operating and installation manuals to the customer.
POWER
Communication error
Indoor unit temperature error
Outdoor unit temperature error 1
Outdoor unit temperature error 2
Indoor unit control system error
Outdoor unit control system error
Indoor unit fan motor error
Refrigerant system error
Added function error
Indoor unit connect error
OPERATION TIMER AIR CLEAN COIL DRY
or QUIET
(RED) (GREEN) (GREEN) (ORANGE)
OFF OFF OFF
2 times OFF OFF
3 times OFF OFF
3 times OFF OFF
4 times OFF OFF
5 times OFF OFF
6 times OFF OFF
7 times OFF OFF
8 times OFF OFF
: flashing
: flashing (2~8 times)
: Fast flashing
Transmitter section
Test run button

AIR CLEANING FILTER INSTALLATION
1. Open the Intake Grille and remove the Air filters.
2. Install the Air cleaning filter set (set of 2).
(1) Set the air cleaning filter into the air cleaning filter frame.
(2) Engage the latch at both ends of the filter with the two hooks
at the rear of the air cleaning filter frame.
Take care that the air cleaning filter does not project beyond the
frame.
Air cleaning filter set
Air cleaning filter frame
Air cleaning filter
Hook (2 places at the rear)
Latch (2 places)
Air Filter
(Right & Left)
(3) Engage the four fixing locations at the top and bottom of the
air cleaning filter frame with the hooks of the air filter.
3. Install the two Air filters and close the Intake Grille.
●When air cleaning filters are used, the effect will increased by
setting the fan speed to “High”.
Fixing location, hook (4 places)
Air Filter
(Right & Left)
Rear of the filter