Friedrich Metal Products M09YH Installation Manual

SPLIT TYPE ROOM AIR CONDITIONER

G

1

G

3

2

1

2

3

208/230V

208/230V

208/230V

L2

L1

LO

HI

INSTALLATION MANUAL

(P/N 9332279009-01) ENGLISH

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:

CAUTION:

• Hazel alerting symbols

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

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.

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 abnor­mal vibration.

...In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame.
Provide a suitable air baffle.

...In a Snowy Area (for Heat Pump-type Systems)

Install the outdoor unit on a raised platform that is higher than drifting
snow. Provide snow vents.

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
particular 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.

This air conditioner uses new refrigerant HFC (R410A).

5 cm or over

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) mod-

els, 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 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(R22) 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

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 side whose composition is
stable.

Special tools for R410A

Tool name

Pressure is high and cannot be measured with a conventional gauge. To prevent erroneous

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/10m. 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.
Thicknesses of copper pipes used with R410A are as shown in Table1.Never use copper pipes thinner than 0.8mm even
when it is available on the market.

(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.

When installing pipes shorter than 10ft (3m), sound of the outdoor unit will be transferred to the indoor unit, which
will cause large operating sound or some abnormal sound.

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.

Contents of change

Table 1 Thicknesses of Annealed Copper Pipes

WARNING

CAUTION

Nominal

diameter

1/4

3/8

Outer diameter

(mm)

6.35

9.52

Thickness (mm)

R410A

0.80

0.80

[ref.] R22

0.80

0.80

INDOOR UNIT

1.

CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING

(1) Cut a 2-9/16” (65 mm) diameter hole in the wall at the position shown

in (Fig. 1).

(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 of the
installation frame.
When cutting the wall hole at the outside of the installation frame,
cut the hole at least 3/8” (10 mm) lower.

(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 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. (The connection pipe is supplied in the installation set.) (Fig. 5)

(6) For left piping and right piping, cut the hole a little lower so that

drain water will flow freely. (Fig. 1)

2. INSTALLING THE WALL HOOK BRACKET

(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.

Fig. 1

Center mark

at least 3/8” (10 mm)
lower

Fasten with
vinyl tape

(Wall pipe)

(Wall cap)

Wall hook bracket

Fig. 2

2-9/16” (65 mm) dia. hole 2-9/16” (65 mm) dia.

(Inside)

Wall

WARNING

If the wall pipe is not used, the cord interconnecting
the indoor and outdoor units may touch metal and
cause electric leakage.

Install the wall hook bracket horizontally and perpen­dicularly.

CAUTION

3. 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. (Fig. 3)

● 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

(1) In order to align the drain hose and drain cap, be

sure to insert securely and vertically. Incline in­sertion will cause water leakage.

(2) When inserting, be sure not to attach any mate-

rial besides water. If any other material is attached,
it will cause deterioration and water leakage.

(3) After removing drain hose, be sure not to forget

mounting drain cap.

(4) Be sure to fix the drain hose with tape to the bot-

tom of piping.

(5) Prevent drain water frozen under low tempera-

ture environment.

When installing indoor unit's drain hose outdoors,
necessary measure for frost protection should be
taken to prevent drain water frozen.

●

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 be resulted
for indoor unit.

Installation method of Drain cap

● Use a hexagonal wrench (3/16” (4 mm)

at opposite side) to insert the drain cap,
till the drain cap contacts the tip of drain
cock.

Hexagonal
wrench

No gap

Drain cock

Drain cap

Fig. 3

Right piping

Bind with vinyl tape

Bottom
piping

Indoor unit
drain hose

Pipe (top)
Rear piping

Indoor unit drain hose (bottom)

Drain cap

Removal method of drain
hose

● Remove the screw at the left of
drain hose and pull out drain
hose.

Screw

Drain fixture
(white)

●

Be sure to install around the drain hose connector.

●

As the screw is inside, be sure to use screwdriver treated with magnet.

Drain hose

Center mark

at least 3/8” (10 mm)

lower

hole

3/16’’ to 3/8’’
(5 to 10 mm)
low

(Outside)

Tapping screw

For left outlet piping, cut off the
piping outlet cutting groove
with a hacksaw.

Remove the drain cap by pulling
at the projection at the end of
the cap with pliers, etc.

Installation method of
drain hose

● Vertically insert the drain hose
toward the inside, so that the
drain fixture (white) can accu­rately align with the screw hole
around the drain cock.
After inserting and before re­placing, please reinstall and fix
the removed screws.

Screw hole

Drain cock

Drain fixture (white)

Drain hose

Screw

● 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.

Indoor unit

(Spacer)

Wall hook bracket

CONNECTING THE PIPING

CONNECTION

(1) Install the outdoor unit wall cap (supplied with the optional installa-

tion 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. (Table 2)

FLARING

(1) Cut the connection pipe to the nec-

essary 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.

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 (for R22) flare tool.
When using the conventional flare tool,
always use an allowance adjustment
gauge and secure the A dimension
shown in table 3 .

BENDING PIPES

The pipes are shaped by your hands. Be careful not to collapse them.

OK NO

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.

Extend the pipe
by unwinding it.

Check if [L] is flared uniformly
and is not cracked or scratched.

Die

A

Pipe

Fig. 4

Connection pipe
(1/4” (6.35 mm)
dia.)

Bend (R70) with
a pipe bender

Indoor unit

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.

Fig. 5

Table 2 Flare nut tightening torque

1/4” (6.35 mm) dia.

3/8” (9.52 mm) dia.

Table 3 Pipe outside diameter

Pipe outside

diameter

1/4” (6.35 mm)
3/8” (9.52 mm)

Tighten with two wrenches.

Torque
wrench

Indoor unit pipe

Flare nut

R410A, clutch type

Wrench (fixed)

Flare nut

Connection pipe

Flare tool for

0 to 1/32
0 to 1/32

Align the marks.

Connection pipe
(3/8” (9.52 mm) dia.)

Top hooks

Bottom hooks

To prevent gas leakage, coat the flare
surface with refrigerator oil.

Tightening torque

11.57 to 13.20 ft
(160 to 180 kgf

21.70 to 30.38 ft
(300 to 420 kgf

A (in)

Conventional (R22) flare tool

Clutch type

1/32 to 2/32

1/32 to 2/32

Wall hook bracket

• lbs

• cm)

• lbs

• cm)

Wing nut type

2/32 to 3/32

2/32 to 3/32

CAUTION

(1) Fasten a flare nut with a torque wrench as instructed in this manual. If

fastened too tight, the flare nut may be broken after a long period of time
and cause a leakage of refrigerant.

(2) During installation, make sure that the refrigerant pipe is attached firmly

before you run the compressor. Do not operate the compressor under the
condition of refrigerant piping not attached properly with 2-way or 3-way
valve open. This may cause abnormal pressure in the refrigeration cycle
that leads to breakage and even injury.

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 connectin 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:

Table 4

Small pipe Large pipe

Outer diameter Thickness Outer diameter Thickness

1/4”(6.35 mm) 1/32”(0.8 mm) 3/8”(9.52 mm) 1/32”(0.8 mm)

Cut each pipe to the appropriate length +12” (30 cm)
to16” (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

3. OPERATING RANGE

Table 5

Cooling/Dry Mode

Outdoor temperature

Indoor temperature

Indoor humidity

About 14 to 115 °F

About 64 to 90 °F

About 80% or less

ADDITIONAL CHARGE

Refrigerant suitable for a piping length of 49 ft (15 m) is charged in
the outdoor unit at the factory.
When the piping is longer than 49 ft (15 m), additional charging is necessary.
For the additional amount, see the table below.

Table 6

Pipe length

Additional

refrigerant

Between 49 ft (15 m) and 66 ft (20 m), when using a connection pipe
other than that in the table, charge additional refrigerant with 0.2 oz/
ft (20g/1 m) as the criteria.

49 ft (15 m)

None

66 ft (20 m)

3.5 oz (100 g)

CAUTION

(1) When adding refrigerant, add the refrigerant from

the charging port at the completion of work.

(2) The maximum length of the piping is 66 ft (20 m).

If the units are further apart than this, correct
operation can not be guaranteed.

Heating Mode

About 5 to 75 °F

86 °F or less

STANDARD ACCESSORIES

The following installation accessories are supplied. Use them as
required.

Name and Shape

Wall hook bracket

Remote
control
unit

Battery (penlight)

Remote control
unit holder

The following items are necessary to install this air conditioner. (The
items are not included with the air conditioner and must be purchased
separately.)

Q’ty

1

1

2

1

Name and Shape

Cloth tape

Tapping screw (big)

Tapping screw (small)

Drain pipe

Name

Connection pipe assembly

Connection cord (3-conductor)

Wall pipe

Decorative tape

Vinyl tape

Wall cap

Saddle

Drain hose

Tapping screws

Sealant

Q’ty

1

8

2

1

Q’ty

1

1

1

1

1

1

1 set

1

1 set

1

ELECTRICAL REQUIREMENT

Always make the air conditioner power supply a special branch cir­cuit and provide a special switch and receptacle. Do not extend the
power cord.
Always select the size that corresponds to the capacity of the breaker to
the size of the power cord.

CAUTION

9000 BTU/h 12000 BTU/h

MINIMUM CIRCUIT AMPACITY 10 A 12 A

MAXIMUM OVERCURRENT PROTECTION
(TIME DELAY FUSE OR HACR TYPE CIRCUIT BREAKER)

15 A 15 A

SELECTING THE MOUNTING
POSITION

Decide the mounting position with the customer as follows:

1. 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 (Fig. 7). Also install the unit where the filter can be removed.

2. OUTDOOR UNIT

(1) If possible, do not install the unit where it will be exposed to di-

rect sunlight. (If necessary, install a blind that does not interfere

with the air flow.)
(2) Do not install the unit where a strong wind blows or where it is

very dusty.
(3) Do not install the unit where people pass.
(4) Take you neighbors into consideration so that they are not dis-

turbed by air blowing into their windows or by noise.
(5) Provide the space shown in Fig. 7 so that the air flow is not blocked.

Also for efficient operation, leave open three of the four direc-

tions front, rear, and both sides.

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.

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.
(4) Install the indoor unit on the wall where the height

from the floors more than 70”(180 cm).

[Indoor unit piping direction]

The piping can be connected in the six directions indicated in (Fig. 6).
When the piping is connected in direction 2 , 3 , 4 or 5 , cut along the
piping groove in the side of the front cover with a hacksaw.

Fig. 6

(Rear)

2 Right
outlet

Fig. 8

1 Rear outlet

3 Bottom outlet

18” (45.4 cm)

4 Left bottom
outlet

5 Left
outlet

4 Left rear outlet

12-9/16” (32 cm)

INSTALLATION DIAGRAM OF
INDOOR AND OUTDOOR UNITS

Fig. 7

[INDOOR UNIT]

2”(5 cm)

2-2/5”(6 cm) or over

60”(150 cm) or over

Connection Cord

14AWG

or over

70” (180 cm)
or over

Remote
control unit

[OUTDOOR UNIT]

24”(60 cm)
or over

4”(10 cm) or over

8”(20 cm) or over

• Do not directly install it
on the ground, otherwise
it will cause failure.

• To obtain better operation
efficiency, when the outdoor
unit is installed, be sure to
open the front and left side.

When the outdoor temperature is 32°F (0°C) or less, do not use the

(1)

accessor y drain pipe and drain cap. If the drain pipe and drain cap are
used, the drain water in the pipe may freeze in extremety cold weather.
(Reverse cycle model only)

(2)

In the area with heavy snowfall, if the intake and outlet of outdoor unit

is blocked with snow, it might become difficult to get warm and it is
likely to cause of the breakdown. Please construct a canopy and a ped­estal or place the unit on a high stand (local configured).

2”(5 cm) or over

Drain hose

CAUTION

Wall hook bracket

3- 9/16”(9 cm)
or over

(Wall cap)

Remote
control
unit
holder

Tapping
screw
(small)

4”(10 cm)
or over

Outdoor unit bottom

10”(25 cm)
or over

OUTDOOR UNIT

OUTDOOR UNIT INSTALLATION

● Set the unit on a strong stand, such as one made of concrete blocks

to minimize shock and vibration.

● Do not set the unit directly on the ground because it will cause trou-

ble.

Connector cover removal

● Remove the tapping screw.

Installing the connector cover

(1) After inserting the four hooks, then push upward.
(2) Tighten the tapping screw.

WARNING

(1) Install the unit where it will not be tilted by more

than 5°.

(2) When installing the outdoor unit where it may ex-

posed to strong wind, fasten it securely.

AIR PURGE

Always use a vacuum pump to purge the air.
Refrigerant for purging the air is not charged in the
outdoor unit at the factory.

Close the high pressure side valve of the gauge manifold fully and do
not operate it during the following work.

1. Check if the piping connections are secure.

2. Check that the stems of 2-way valve and 3-way valve are closed
fully.

3. Connect the gauge manifold charge hose to the charging port
of the 3-way valve (side with the projection for pushing in the
valve core).

4. Open the low pressure side valve of the gauge manifold fully.

5. Operate the vacuum pump and start pump down.

6. Slowly loosen the flare nut of the 3-way valve and check if air
enters, then retighten the flare nut.
(When the flare nut is loosened the operating sound of the
vacuum pump changes and the reading of the compound
pressure gauge goes from minus to zero.)

7. Pump down the system for at least 15 minutes, then check if the
compound pressure gauge reads -0.1 MPa (-76 cmHg, -1 bar).

8. At the end of pump down, close the low pressure side gauge of
the gauge manifold fully and stop the vacuum pump.

9. Slowly loosen the valve stem of the 3-way valve. When the
compound pressure gauge reading reaches 0.1-0.2 MPa,
retighten the valve stem and disconnect the charge hose
from the 3-way valve charging port.
(If the stem of the 3-way valve is opened fully before the
charge hose is disconnected, it may be difficult to disconnect
the charge hose.)

Fig. 9

Tapping screw

Rear hook

Connector cover

Always use the screws as shown above.
Do not select the top and bottom screws incorrectly.

10. Fully open the valve stems of the 2-way valve and 3-way valve
using a hexagon wrench. (After the valve stem begins to turn,
turn it with a torque of less than 2.17ft•lbs (30 kgf•cm) until it
stops turning.)

11. Firmly tighten the 2-way valve and 3-way valve blank cap and
the charging port cap.

Fig. 10

3-way valve

Charging port cap

2-way valve

Compound pressure gauge

Flare nut

Low pressure
side valve

Valve stem

Blank cap

Charge hose

Charging port

-0.1 MPa
(-76 cmHg

-1 bar)

Gauge manifold

Pressure gauge

High
pressure
side valve
(closed)

Charge
hose

Vacuum pump

Table 7

Tightening torque

Blank cap 14.47 to 18.08 ft

Charging port cap 9.04 to 11.57 ft

• lbs (200 to 250 kgf • cm)

• lbs (125 to 160 kgf • cm)

CAUTION

(1) Refrigerant must not be discharged into atmos-

phere.

(2) After connecting the piping , check the joints for

gas leakage with gas leak detector.

(3)

When adding refrigerant, add the refrigerant from
the charging port at the completion of work.

(4)

The maximum length of the piping is 66 ft (20 m).
If the units are further apart than this, correct

operation can not be guaranteed.

ELECTRICAL WIRING (OUTDOOR UNIT)

1. Remove the screws, then remove the control box cover.

2. Fasten the Inter unit wire harness and power supply to the conduit holder using the lock nut.

3. Connect inter-unit wire harness and power supply to the terminal.
Refer to the wiring diagram

4. Use the screws to install the control box cover.

WARNING

Be sure to comply with local codes while run­ning the wire from the indoor unit to the out­door unit (size of wire and wiring method, etc.).

Every wire must be connected firmly.

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 fire hazard
may also exist. Therefore, be sure all wiring is
tightly connected.

Connect wires to the matching numbers of
terminals.

Fig. 11

Indoor unit

Terminal

Earth Screw

G

3

2

1

DISCONNECT
SWITCH
(FIELD SUPPLY)

G

Grounding line

Control line

(Inter Unit)
Power line

12

208/230V

208/230V

208/230V

3

Outdoor unit

Terminal

G

L2

L1

3

2

1

Connection cord

NOTE:

• Connector trade size for this unit is 1/2” (12.7 mm). The connec­tor can be bought at a hardware store. Refer to “How to connect
wiring to the terminals” for instructions on connecting depend­ing on the wire type you are using.

• The fuse located in the outdoor unit provides power supply pro­tection and may blow when power is applied if the system has
been incorrectly wired.

POWER SUPPLY

Single-phase, 208/230V

12

Lock nut

terminal block

3

Earth Screw

Power supply line

Control box cover

Inter-unit wire harness

Power supply

Inter-unit wire harness

L1 L2

Earth Screw

G

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.
IMPORTANT: Refer to Fig. 19 about the length of inter-unit wire harness.

3. Use the screws to install the conduit holder with which Inter-unit wire har­ness 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.

Fig. 13

Wire cover

Screw

Cord clamp

Screw

Fig. 12

Wire cover

Screw

LOCK NUT

SCREW

CONDUIT HOLDER

EARTH WIRE

CONDUIT CONNECTOR

Cord clamp

Screw

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.

Fig. 16

(Outside wall cap)

(Saddle)

(Sealer putty)

Fig. 15

Connection pipe
(heat insulation)

Bind the pipes together
to that there is no gap.

Pipe

Drain hose

Check the following:

GOOD

Overlap the insulation

Indoor unit pipe
(heat insulation)

Vinyl tape

Wrap with cloth tape

Cloth tape

Left piping

Connection cord

Pipe

Drain hose

For connection from the left rear

Wall pipe

Drain hose

Connection cord

Connection pipe

View from indoors

BAD

BAD BAD

The method of adjusting inter-unit wire harness

To connect inter-unit wire harness to the terminal correctly, please
refer to Fig. 19 to adjust the length of the part of Inter-unit Wire
harness ahead from conduit holder.

EARTH WIRE

Fig. 19

14AWG

(1:1)

15/16" (25mm)

Connection cord

Connection cord

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 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.

Fig. 14

A. Solid wire

Insulation

Strip 15/16" (25 mm)

Wire

Insert the tab into the square hole of the
indoor unit and fasten with a screw.

Loop

Strip 3/8" (10 mm)

Screw with
special washer

Round
terminal

Terminal
board

Wire

Terminal block

B. Strand wire

Screw with
special washer

Connection
cord

Round
terminal

Round
terminal

(Outdoors)

Pipe

Wall

FRONT PANEL REMOVAL AND INSTALLATION

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 in-

take grille is removed.

INTAKE GRILLE INSTALLATION

(1) The fixing axle of the intake grille is installed on the Panel.
(2) Lay down the intake grille.

FRONT PANEL REMOVAL

(1) Remove intake grille (Reference the intake grille removal.)
(2) Remove wire cover.
(3) Remove three screws.
(4) 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

bottom hooks. (Three top sides, eight bottom sides)
(2) Three screws is attached.
(3) The wire cover is attached.
(4) The intake grille is attached.

Bottom holes

Indoor unit

(two position)

Front panel

Screws (Wire cover)

Top hole (center)

Indoor unit

Drain hose

Saddle

Fig. 17

Wire cover

Lifted up

Intake grille

Mounting shaft

Bearing

Front panel

Screws (3 position)

Top holes (two sides)

Wave

Top hook (center)

End in water

Intake grille

Knob

Front panel

Top hooks (two sides)

Front panel

7-7/8" (200mm)

7-15/32" (190mm) 15/16" (25mm)

CONDUIT PLATE

CAUTION

(1) Match the terminal block numbers and connection

cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the elec­tric parts.

(2) Connect the connection cords firmly to the terminal

block. Imperfect installation may cause a fire.

(3) Always fasten the outside covering of the connection

cord with the cord clamp. (If the insulator is chafed,

electric leakage may occur.)
(4) Always connect the ground wire.
(5) Do not use the earth screw for an external connector.

Only use for interconnection between two units.

TEST RUNNING

● Perform test operation and check items 1 and 2 below.

● For the test 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, (Point the transmitter section of the remote control unit toward the air conditioner and press the test run
button with the tip of a ball-point pen, etc.)

● 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?

Transmitter section

Fig. 18

2. OUTDOOR UNIT

(1) Is there any abnormal noise and vibration during operation?
(2) Will noise, wind, or drain water from the unit disturb the neighbors?
(3) Is there any gas leakage?

Test run button

POWER

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 208 V-10% to 230V+10% range.

(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 stand-

ards 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 electric com-

pany standards.

(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.

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 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.

CAUTION

Bottom holes
(six position)

Bottom hooks
(six position)

CAUTION

Install the front panel and INTAKE GRILLE securely. If installation is imperfect, the front panel or INTAKE GRILLE
may fall off and cause injury.

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.

1. REMOTE CONTROL UNIT HOLDER INSTALLATION

• Install the remote control unit with a distance of 23 ft

(7 m) between the remote control unit and the photocell
as the criteria. However, when installing the remote con­trol unit, check that it operates positively.

• Install the remote control unit holder to a wall, pillar,

etc. with the tapping screw (Fig. 20).

Fig. 20

Remote control unit
holder fixing

Remote control
unit holder

Tapping
screw
(small)

Remote control
unit mounting

1 Set

2 Push

Remote
control unit

IMPORTANT

This product has been designed and manufactured to meet ENERGY STAR criteria for energy efficiency when matched
with appropriate coil components. However, proper refrigerant charge and proper air flow are critical to achieve rated
capacity and efficiency. Installation of this product should follow the manufacturer's refrigerant charging and air flow
instructions. Failure to confirm proper charge and air flow may reduce energy efficiency and shorten equipment life.

CONDUIT CONNECTOR

PUMP DOWN OPERATION (FORCED COOLING OPERATION)

To avoid discharging refrigerant into the atmosphere at the time of relocation or disposal, recover refrigerant by doing the cooling operation or
forced cooling operation according to the following procedure. (When the cooling operation cannot start in winter, and so on, start the forced
cooling operation.)

(1) Do the air purging of the charge hose by connecting the charging hose of gauge manifold to the charging port of 3 way valve and opening the

low-pressure valve slightly.
(2) Close the valve stem of 2 way valve completely.
(3) Start the cooling operation or following forced cooling operation.

Keep on pressing the MANUAL AUTO button of the indoor unit for more than 10 seconds.

The operation indicator lamp and timer indicator lamp will begin to flash simultaneously during test run.

(The forced cooling operation cannot start if the MANUAL AUTO button is not kept on pressing for more than 10 seconds.)
(4) Close the valve stem of 3 way valve when the reading on the compound pressure gage becomes 0.05~0 MPa (0.5~0 kg/cm
(5) Stop the operation.

• Press the START/STOP button of the remote control unit to stop the operation.

• Press the MANUAL AUTO button when stopping the operation from indoor unit side.

(It is not necessary to press on keeping for more than 10 seconds.)

CAUTION

During the pump-down operation, make sure that the compressor is turned off before you remove the refrigerant piping.

Do not remove the connection pipe while the compressor is in operation with 2 way or 3 way valve open. This may cause abnormal

pressure in the refrigeration cycle that leads to breakage and even injury.

2

).