Master 9369651014 Installation Manual

MULTI SPLIT TYPE ROOM AIR CONDITIONER

INSTALLATION INSTRUCTION SHEET

(PART NO. 9369651014)

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

CAUSION

• Hazel alerting symbols

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.

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

ENGLISH

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.

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

connection points and a possible fire hazard.

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

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• 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.

GENERAL

This INSTALLATION INSTRUCTION SHEET 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.
(1) Deoxidized annealed copper pipe for refrigerant piping as:

Table 1

STANDARD ACCESSORIES

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

INDOOR UNIT ACCESSORIES

UNIT A1, A2

Name and Shape

Wall hook bracket

Wall cap

Q’ty

1

1

UNIT B

Name and Shape

Wall hook bracket

—

Q’ty

For indoor unit
installation

1

For through
hole connection
pipe protection

USE

Small pipe Large pipe

Outer diameter Thickness Outer diameter Thickness

1/4” (6.35 mm) 1/32” (0.8 mm) 1/2”(12.7 mm) 1/32” (0.8 mm)

Cut each pipe to the appropriate length + 12” (30 cm) to 16” (40 cm)
to dampen vibration between units.

(2) 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).

(3) 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

(1) Refrigeration (armored) tape
(2) Insulated staples or clamps for connecting wire

(See your local electrical codes.)

(3) Putty
(4) Refrigeration lubricant
(5) Clamps or saddles to secure refrigerant piping

3. OPERATING RANGE

Table 2

Temperature INDOOR OUTDOOR

Maximum

Cooling

Minimum 65 °F (18 °C) DB 32 °F(0 °C) DB

90 °F (35 °C) DB

humidity about 80% or less

110 °F(43.3 °C) DB

Remote
control unit

Battery (penlight)

Remote control
unit holder

Cloth tape

Tapping screw (big)

(ø4 × 25)

Tapping screw (small)
(ø3 × 12)

Seal A

Remote
control unit

1

Battery (penlight)

2

Remote control
unit holder

1

1

8

2

1

—

Tapping screw (big)

(ø4 × 20)

Tapping screw (small)
(ø3 × 12)

—

OUTDOOR UNIT ACCESSORIES

Cable mark

A1-A

A1-A
A2-A

B-A

A1-B
A2-B

A2-A

B-A

Hexagon
wrench

Edge cover

Tapping screw

Binder

B-B

A1-B
A2-B

B-B

Stick on both ends of
connection cord (to

1

prevent incorrect wiring)

For air purge

1

For wiring conduit
installation hole edge

1

protection

For cabinet A and

•

2

cabinet D mounting (1)

• Spare (1)

For power cord binding

2

1

For remote
control unit

4

Use as remote
control unit

1

holder

For indoor unit
installation

For wall hook
bracket

12

installation

For remote
contorol unit

2

holder installation

For indoor unit
installation

Putty

For sealing

1

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 manual and installation instruction sheet to

the customer.

INDOOR UNIT INSTALLATION (UNIT A1 and A2)

INDOOR UNIT PIPING DIRECTION

The piping can be connected in the five directions indicated by 1, 2, 3,
4, and 5 in (Fig. 4). When the piping is connected in direction 2 or 5, cut

along the piping groove in the side of the front cover with a hacksaw. When
connecting the piping in direction 3, cut a notch in the thin wall at the
front bottom of the front cover.

INSTALLING THE WALL HOOK BRACKET

CAUTION

1 Install the wall hook bracket so that it is correctly

positioned horizontally and vertically. If the wall
hook bracket is tilted, water will drip to the floor.

2 Install the wall hook bracket so that it is strong

enough to withstand the weigtht of an adult.

(1) Before fastening the wall hook bracket to the wall with the screws,

level it by tapping the hook at the center of bracket to the wall with
the handle of a screwdriver.

(2) Fasten the wall hook bracket to the wall with 6 or more screws through

the holes near the outer edge of the bracket.

(3) Check that there is no rattle at the wall hook bracket.

Fig. 4

2 Right outlet

Fig. 5

Tapping screw
(big)

Ta p

(Rear)

1 Rear outlet

3 Bottom outlet

Wall hook bracket

(Handle of screwdriver)

5 Left outlet

4 Left rear outlet

Center notch

Hook

Wall hook
bracket

String

Hook

CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING

(1) Cut a 3-2/16” (80 mm) diameter hole in the wall at the position shown

in (Fig. 6).

(2) When cutting the wall hole at the inside of the wall hook bracket, cut

the ø80 mm hole within the range of the left and right center marks.
When cutting the wall hole at the outside of the wall hook bracket,
cut the hole at least 3/8” (10 mm) below the center line.

(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 acces-

sory wall cap-B, fasten the cap with vinyl tape, and stick the pipe
through the hole. (The connection pipe is supplied in the installation
set.) (Fig. 6)

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

drain water will flow freely. (Fig. 6)

NOTE:

• Always align the center of the wall hole. If misaligned, water leakage
will occur.

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

Fig. 6

3-2/16” (80 mm) dia. hole

Center mark

Lower

3/8”
(10 mm) or over

Fasten with
vinyl tape

(Wall pipe)

Wall cap-B

(Inside) Wall (Outside)

3/16” to 3/8”
(5 to 10 mm) low

3-2/16” (80 mm) dia.
hole (Rights side hole
only. 2-9/16” (65 mm)
diameter hole is also
possible.)

Counter weight

Lower

3/8”
(10 mm) or over

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. 7)

• 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.

Fig. 7

Cut off the piping
outlet cutting
groove with a
hacksaw, etc.

Decorative tape

Pipe (top)

Right piping

Notch the thin part
of under cover A.

Bind with
vinyl tape

Bottom piping

Rear piping

Indoor unit drain
hose (bottom)

Indoor unit drain hose

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

[For Left rear piping, Left piping]

Interchanging the drain cap and the drain hose.

• For left piping and left rear piping, align the marks on the wall hook bracket and shape the connection pipe.

• 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.

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

Fig. 8

Align the marks.

Connection pipe
(1/4” (6.35 mm) dia.)

Connection pipe
(3/8” (9.52 mm) dia. or
1/2” (12.7 mm) dia.)

[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.

CAUTION

After removing the drain hose, don’t forget to install
the drain cap.

Top hooks

Indoor unit

Bottom hooks(Fitting)

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. 9

Indoor unit

Wall hook bracket

Fig. 10

Wall hook
bracket

Spacer

NOTE:

• To prevent breaking of the pipe, avoid sharp bends. Bend the pipe
with a radius of curvature of 4” (100 mm) or more.

• If the pipe is bent repeatedly at the same place, it will break.

• Do not remove the flare nut from the indoor unit pipe until imme-

diately before connecting the connection pipe.

Drain cap

Insert the drain cap and drain
hose until it butts against the
drain port.

Indoor unit
drain hose

SELECTING THE MOUNTING POSITION

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) Do not install the unit where it will be exposed to direct sun-

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

removed.

Fig. 1

Right side
5 cm

or over
Left side
5 cm
or over

150 cm
or over

6 cm or over

150 to 200 cm

2. OUTDOOR UNIT

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

sunlight. (If necessary, install a blind that does not interfere with
the air flow.)

(2) Install the outdoor unit in a place where it will be free from be-

ing dirty or getting wet by rain as much as possible.
(3) Install the unit when connection to the indoor unit is easy.
(4) Do not place animals and plants in the path of the warm air.
(5) Take the air conditioner weight into account and select a place

where noise and vibration are small.
(6) Select a place so that the warm air and noise from the air condi-

tioner do not disturb neighbors.
(7) Provide the space shown in Fig. 2 so that the air flow is not

blocked. Also for efficient operation, leave open three of the four

directions front, rear, and both sides.
(8) Install the unit near the special branch circuit.

Fig. 2

30 cm

or over

1 cm or over

10 cm
or over

Fig. 3

UNIT B (Large)

UNIT A2 (Small)

UNIT A1 (Small)

60 cm

or over

60 cm or over

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.

CAUTION

MINIMUM CIRCUIT AMPACITY 25A

MAXIMUM OVERCURRENT PROTECTION 30A

(TIME DELAY FUSE OR HACR TYPE CIRCUIT BREAKER)