Carrier 40MBQB09F3 Installation Manual

40MB*F
Floor Console Ductless Split System
Sizes 09 to 12

Installation Instructions

TABLE OF CONTENTS

PAGE

SAFETY CONSIDERATIONS. . . . . . ....... . . . . . ...... . . 2

SYSTEM REQUIREMENTS . . . . . . . . . . . . . . ....... . . . . ..2

MODEL NUMBER NOMENCLATURE..... . . . ... ..... . . 3

PRECAUTIONS . . . . . . . . . . . . . . ....... . . . . . . . . ....... . 4

INSTALLATION INFORMATION . . . . . . . . . . . . . . ....... . 5

ACCESSORIES . . . . . . . . . . . . . . ....... . . . . . . . . . . . . . . . . 6

INSPECTING AND HANDLING THE UNIT . . . . . . . ...... 7

INDOOR UNIT INSTALLATION . . . . . . . . . . . . . . ....... . . 7

OUTDOOR UNIT INSTALLATION . . . . . . . . . . . . . . ..... . . 8

INSTALL THE CONNECTING PIPE . . . . . . . . . . . . . . ..... . 9

CONNECT THE DRAIN PIPE . . . . . . . . . . . . . . ....... . . . . . 12

WIRING . . . . . . . . . . . . . . ....... . . . . . . . . . . . . . . . . ..... . . 13

TEST OPERATION . . . . . . . . . . . . . . ....... . . . . . . . . ..... 14

NOTE: Read the entire instruction manual before starting the
installation.

SAFETY CONSIDERATIONS

2

Installing, starting up, and servicing air-conditioning equipment

to

can be hazardous due
and equipment location (roofs, elevated structures, etc.).

Only trained, qualified installers and service mechanics should
install, start-up, and service this equipment.

Untrained personnel can perform basic maintenance functions such
as

cleaning coils. All other operations should be performed by

trained service personnel.
When working on the equipment, observe precautions in the

literature and on tags, stickers, and labels attached to the
equipment.

Follow all safety codes.
quenching cloth and fire extinguisher nearby when brazing. Use
care in handling, rigging, and setting bulky equipment.

Read these instructions thoroughly and follow all warnings or
cautions included in literature and attached to the unit. Consult
local building codes and National Electrical Code
special requirements. Recognize safety information. This is the

safety-alert
in instructions or manuals, be alert
injury. Understand these signal words: DANGER, WARNING, and
CAUTION. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies hazards
which could result in personal injury or death. CAUTION is used
to

identify unsafe practices which
injury or product and property damage. NOTE is used
suggestions which will result in enhanced installation, reliability, or
operation.

symbol&.

A.

ELECTRICAL
Failure to follow this warning could result in personal

injury or death.
Before installing, modifying, or servicing system, main

electrical disconnect switch must be in the OFF
position. There may be more than 1 disconnect switch.
Lock out and tag switch with a suitable warning label.

A.

system pressures, electrical components,

Wear

safety glasses and work gloves. Keep

(NEC) for

When you see this symbol on the unit and

to

the potential for personal

may

result in minor personal

to

WARNING

SHOCK

HAZARD

WARNING

EXPLOSION HAZARD
Failure

to

result in death, serious personal injury,

and/or property damage.

Never use air or gases containing
oxygen for leak testing or operating
refrigerant compressors. Pressurized
mixtures
oxygen can lead

follow this warning could

of

air or gases containing

to

an

explosion.

highlight

A.

EQUIPMENT DAMAGE HAZARD
Failure

to

damage or improper operation.
Do not bury more than 36 in. (914 mm)

in the ground.

6 in. (152 mm) vertical rise

a
the outdoor units.
buried, refrigerant may migrate
during extended periods
refrigerant slugging and could possibly damage the
compressor

follow this caution may result in equipment

CAUTION

If

any section

If

more than the recommended length is

of

at

start-up.

of

of

pipe is buried, there must be

to

the valve connections on

to

the cooler buried section

system shutdown. This causes

refrigerant pipe

SYSTEM REQUIREMENTS

Allow sufficient space for airflow and servicing unit. See Fig. 1
for minimum required distances between unit and walls or ceilings.

and

Recommended Connection Method for Power
cation Wiring
ence>

Power Wiring:
The main power is supplied

connecting cable from the outdoor unit
three (3) wires and provides the power for the indoor unit.
wires are high voltage AC power and one is a ground wire.

Consult your local building codes and the NEC (National
Electrical Code) or CEC (Canadian Electrical Code) for special
requirements.

All wires must be sized per NEC or CEC and local codes. Use
Electrical Data table MCA (minimum circuit amps) and MOCP
(maximum over current protection)
the disconnect fuse or breakers respectively.

Per caution note, only copper conductors with a minimum 300 volt
rating and 2/64-inch thick insulation must be used.

Communication Wiring:
A separate shielded copper conductor only, with a minimum 300

volt rating and 2/64-inch thick insulation, must be used
communication wire from the outdoor unit

To

minimize voltage drop

wire size and maximum lengths shown in the chart below:

EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment

damage or improper operation.

• Wires should be sized based on NEC and local codes.

• Use copper conductors only with a minimum 300 volt
rating and 2/64 inch thick insulation.

A.

ITo

minimize communication wiring interfer-

to

Wire Size

18AWG
16AWG

the outdoor unit. The field supplied

of

the control wire, use the following

to

indoor unit consists

to

correctly size the wires and

to

50 {15)

CAUTION

Communi-

the indoor unit.

Length

ft (m)

50 {15)

to

100 (30)

as

of

Two

the

4

If usedasMULTIunit,please refer to the Installation& operation manuals packed with outdoorunit.

Unit Tons Unit Btuh

0.75 9,000
12,000

208/230-1 40MBQB09F--3

40MBQB12F--3208/230-11

Indoor Model

Number

Volt- Ph @

60Hz

Model Numbers

The first two digits indicate the equipment type.
40 = Indoor unit;
38 = Outdoor uni

Digit 5 indicates the system's type:
C = Cooling only;
Q = Heat pump

Maximum Number of fan coil units connected to the outdoor unit
B = 1:1

Digits 7, 8 indicate the system's capacity in 1000
BTU/Hr

Example: 09 = 9000 BTU/Hr

Digit 9 - Indoor Fan Coil Unit Type
B = High-Wall
C = Cassette
D = Ducted
F = Console
G = Underceiling
H = High Wall Color Variation

- = Outdoor

Digit 12 indicates voltage
1 = 115/l/60
3 = 208-230-1-60Hz

40 MA Q B 09 B -- 3

Digits 10, 11 - blank

Digits 3 and 4 represent the model

3

Be sure to comply with the local, national and international
laws and regulations.

Read "PRECAUTIONS" carefully before installation.

The following precautions include important safety items.
Observe them and never forget.

Keep this manual with the owner's manual in a handy place
for future reference.

Installation must be performed in accordance with the
requirement of NEC and CEC by authorized personnel only.
（Applicable to the North American area only）

1. PRECAUTIONS

The safety precautions listed here are divided into two categories. In
either case, important safety information is listed which must be read
carefully.

After completing the installation, make sure that the unit operates
properly during the start-up operation. Please instruct the customer
on how to operate the unit and keep it maintained.Also, inform
customers that they should store this installation manual along with
the owner's manual for future reference.

Only trained and qualified service personnel should
install, repair or service the equipment.

Improper installation, repair, and maintenance may result in
electric shocks, short-circuit, leaks, fire or other damage to
the equipment.

Failure to observe a warning may result in death.

Failure to observe a caution may result in injury or
damage to the equipment.

Install the unit according to this installation instructions
found in this document.

If installation is defective, it will cause water leakage,
electrical shock or fire.

When installing the unit in a small space, take measures
to prevent refrigerant concentration from exceeding
allowable safety limits in the event of refrigerant leakage.

Contact the place of purchase for more information.
Excessive refrigerant in a closed space can lead to oxygen
deficiency.

Use the attached accessories parts and specified parts
for installation.

Failure to use the included parts will cause the set to fall,
water leakage, electrical shock or fire.

Install the unit in a strong and firm location which is able
to withstand the set' s weight.

If the installation site is not secure or the installation is not
properly done, the set will drop and possibly cause injury or
damage.

The appliance should not be installed in the laundry.

Before obtaining access to terminals, all supply circuits
must be disconnected.

The appliance must be positioned so that the plug is
accessible.

The enclosure of the appliance shall be marked with
words, or with symbols, with the direction of the fluid
flow.

For electrical work, follow the local national wiring
standard, regulations and these installation instructions.
An independent circuit and single outlet must be used.

If electrical circuit capacity is insufficient or a defect exists in
the electrical work, it will cause an electrical shock or a fire.

Connect the specified cable tightly and then clamp the
cable so that no external force can act on the terminal.

If connection or fixing is not correct , it will cause a heat
build-up or fire at the connection.

Wiring routing must be properly arranged so the control
board cover is fixed properly.

If the control board cover is not fixed properly, it will cause a
heat build-up at the connection point of the terminal, which
may result in a fire or an electrical shock.

If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or similarly qualified
person in order to avoid a hazard.

An all-pole disconnection switch with a contact
separation of at least 3mm in all poles should be
connected in the fixed wiring.

When performing the piping connection, make sure that
air substances do not enter the refrigeration cycle.

If air substances enter the refrigeration cycle, it will reduce
capacity, abnormal high pressure in the refrigeration cycle,
explosion and injury.

Do not modify the length of the power supply cord or use
an extension cord, and do not share the single outlet
with other electrical appliances.

Failure to comply will cause fire or electrical shock.

Carry out the specified installation work after taking into
account strong winds, typhoons or earthquakes.

Improper installation work may result in the equipment falling
and causing accidents.

CAUTION

WARNING

WARNING

4

To install properly, please read this "installation manual"
first.

The air conditioner must be installed by qualified persons.

When installing the indoor unit or its tubing, please follow
this manual closely.

If the air conditioner is installed on a metal part of the
building, it must be electrically insulated according to the
relevant standards to electrical appliances.

When all the installation work is finished, please turn on
the power only after a thorough check.

2. INSTALLATION INFORMATION

Ground the air conditioner.

Do not connect the ground wire to gas or water pipes,
lightning rod or a telephone ground wire.Incomplete
grounding may result in electric shocks.

Be sure to install an earth leakage breaker.

Failure to install an earth leakage breaker may result in
electric shocks.

Connect the outdoor unit wires , then connect the indoor
unit wires.

You should not connect the air conditioner with the power
source until wiring and piping the air conditioner is done.

While following the instructions in this installation
manual, install drain piping in order to ensure proper
drainage and insulate piping in order to prevent
condensation.

Improper drain piping may result in water leakage and
property damage.

Install the indoor and outdoor units, power supply wiring
and connecting wires at least 3.28ft (1m) meter away
from televisions or radios in order to prevent image
interference or noise.

Depending on the radio waves, a distance of 3.28ft (1m) may
not be sufficient enough to eliminate the noise.

The appliance is not intended for use by young children
or infirm persons without supervision.

Don't install the air conditioner in the following
locations:t

Near petroleum facilities.

Near coastal areas with any concentration of salty air.

Near caustic gases, like sulfide, especially when near hot
springs.

The volt vibrates violently (in the factories).

In buses or cabinets.

In kitchens with large amounts of oil gas.

Near a strong electromagnetic wave.

Near inflammable materials or gas.

Anywhere there is acid or alkaline liquid evaporating.

Other hazardous conditions.

If the refrigerant leaks during installation, ventilate the
area immediately.

Toxic gas may be produced if the refrigerant enters into the
area and comes in contact with fire.

The temperature of refrigerant circuit is high, please keep
the interconnection cable away from the copper tube.

After completing the installation work, ensure that the
refrigerant does not leak.

Toxic gas may be produced if the refrigerant leaks into the
room and comes into contact with a source of fire, such as a
fan heater, stove or cooker.

INSTALLATION ORDER

Select the location.

Install the indoor unit.

Install the outdoor unit.

Install the connecting pipe.

Connect the drain pipe.

Connect the wiring.

Test operation.

CAUTION

The appliance must be installed in accordance with
national wiring regulations.

Do not operate your air conditioner in a wet room such
as a bathroom or laundry room.

An all-pole disconnection device which has at least 3mm
clearances in all poles, and has a leakage current that
may exceed 10mA, and a residual current device (RCD)
which has a rated residual operating current not to
exceed 30mA, and a disconnection must be incorporated
in the fixed wiring in accordance with the wiring rules.

5

SET TEMPERATURE｣ｨOC)

AUTO
COOL
DRY
HEAT

FAN
HIGH
MED
LOW

TEMP.

MODE

ON/OFF

FAN SPEED

SWING

ECONOMIC

TIMER ON

RESET

LOCK

TIMER OFF

AIR DIRECTION

POWERFUL

3. ACCESSORIES

Please check whether the following fittings are in scope. If there are some spare fittings , please restore them carefully.

Fig.3-1

Never throw or beat the controller.

Before installation, operate the remote controller to determine its location in a
reception range.

Keep the remote controller at least 3.28ft (1m) apart from the nearest TV set or
stereo equipment. (it is necessary to prevent image disturbances or noise
interferences.)

Do not install the remote controller in a place exposed to direct sunlight or close to a
heating source, such as a stove.

Note that the positive and negative poles are right positions when loading batteries.

This manual is subject to changes due to technological improvement without further
notices.

Cautions on remote controller installation:

Remote

controller

Remote controller

holder

Mounting screw B

ST2.9x10-C-H

Table 3-1

QUANTITYSHAPENAME

1.Hook

6. Owner's manual

7. Installation manual

2. Remote controller

3. Frame

5. Alkaline dry batteries (AM4)

2

1

1

2

2

1

1

(on some models)

1

Installation fittings

Remote controller and its
Frame

Others

4. Mounting screw(ST2.9×

10-C-H)

8 .Transfer connector( 9.52- 12.7)
(Packed with the indoor unit ,used for
multi-type models only )
(NOTE: Pipe sizes differ from appliance
to appliance.To meet different pipe size
requirements, sometimes the pipe
connections need the transfer connector
installed on the outdoor unit .)

9. Magnetic ring

(Hitch on the communication cable and

wind for two circles.)

10. Red short connected wire

(Applied to the W/L pin of outdoor unit

terminal block be short-circuited.)

1

(on some models)

1

(on some models)

6

5. INDOOR UNIT INSTALLATION

4. INSPECTING AND HANDLING THE UNIT

At delivery, the package should be checked and any damage
should be reported immediately to the service agent.

When handling the unit, take into account the following:

Fragile, handle the unit with care.

Keep the unit upright in order to avoid compressor
damage.

Determine before hand the path which the unit is to be
brought in.

Move this unit in the originally package is possible.

When lifting the unit , always use protectors to prevent
belt damage and pay attention to the position of the
unit’s centre of gravity.

1

2

3

4

Keep the indoor unit, the outdoor unit, the power
supply wiring and transmission wiring at least 3.28ft
(1m) away from televisions and radios. This is to
prevent image interference and noise in those
electrical appliances. (Noise may be generated
depending on the conditions under which the electric
wave is generated, even if a distance of 3.28ft (1m) is
maintained.)

There is enough room for installation and maintenance.

(Refer to Fig.5-1 and Fig.5-2)

The outlet and the inlet are not impeded, and the
influence of external air is minimal.

The air flow can reach throughout the room.

The connecting pipe and drainpipe could be extracted out
easily.

There is no direct radiation from heaters.

5.1 Installation place

5.2 Install the main body

The indoor unit should be installed in a location that meets
the following requirements:

CAUTION

Fig.5-1

Fig.5-2

Fig.5-3

Fig.5-4

Fix the hook with a tapping screw onto the wall.(Refer to
Fig.5-3)

Hang the indoor unit on the hook.

(The bottom of body can touch with floor or suspended,
however the body must install vertically.)

≥3.9in/100mm

≥39.4in/

1000mm

≥3.9in/100mm

≥3.9in/100mm

Hook

Hook

Tapping

screw

Washer

＜0.24in/6mm

27.6in/700mm

8.3in/210mm

7.7in/195mm

7.7in/195mm

23.6in/600mm

7

X

O

6.1 Installation Place

6. OUTDOOR UNIT INSTALLATION

There is enough room for installation and maintenance.

The air outlet and the air inlet are not impeded, and can
not be reached by strong wind.

The installation area must be a dry and well ventilated
place.

The support should be flat, horizontal and can with stand
the weight of the outdoor unit. There should be no
additional noise or vibration.

The unit or the placement of the unit should not impede
on the safety or disturb the comfort of others nearby.

The connecting pipes and cables are easy to install.

Determine the air outlet direction where the discharged
air is not blocked.

There is no danger of fire due to leakage of inflammable
gas.

The piping length between the outdoor unit and the indoor
unit may not exceed the allowable piping length.

In case the installation place is exposed to strong wind
such as a seaside, make sure the fan operates properly
by putting the unit lengthwise along the wall or use a dust
shield.(Refer to Fig.6-1)

If possible, do not install the unit where it is exposed to
direct sunlight.

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

During the heating mode, the water drains off the outdoor
unit. The condensation should be drained away from the
unit through the drain hole to an appropriate location to
avoid contact with people, plants, or animals.

Select the position where the unit will not be subject to
snow drifts, accumulation of leaves or other seasonal
debris. If unavoidable, please cover it with a shelter.

Locate the outdoor unit as close to the indoor unit as
possible.

If possible, please remove the obstacles nearby to
prevent the unit's performance from being impeded by a
lack of air circulation.

The minimum distance between the outdoor unit and
obstacles described in the installation chart does not
mean that the same is applicable to the situation of an
airtight room. Leave open two of the three
directions.(Refore to Fig.6-3)

Fig.6-1

The outdoor unit should be installed in the location that
meets the following requiements:

All the pictures in this manual are for illustration
purposes only. They may differ slightly from the air
conditioner you purchased(depending on the model).

NOTE

Strong wind

Fig.6-2

Fig.6-3

Refore to Fig.6-2～Fig.6-3

Table 6-1 Unit:in/mm

(in=mm/25 .4)

32.0 (810) 22.0 (558) 82.5 (37.4)12.2 (310)

11.4 (290)

20.9 (530)

8

Fig.6-4

NOTE

CAUTION

>11.8in/

30cm

>23.6in/

60cm

>11.8in/

30cm

>78.7in/

200cm

(Wall or obstacle)

Air outlet

Air inlet

M

P

Air inlet

Maintain channel

N

Side air outlet outdoor unit

Fig.6-5

6.2 Moving and installation

All the pictures in this manual are for illustration
purposes only. They may differ slightly from the air
conditioner you purchased(depending on model).

NOTE

All the pictures in this manual are for illustration
purposes only. They may differ slightly from the air
conditioner you purchased(depending on the model).

Since the gravity center of the unit is not at its physical
center, be careful when lifting it with a sling.

Never hold the inlet of the outdoor unit to prevent it from
deforming.

Do not touch the fan with hands or other objects.

Do not lean the unit more than 45, and do not lay it sidelong.

Make a concrete foundation according to the specifications of
the outdoor units.(Refer to Fig.6-5)

Fasten the feet of this unit with bolts firmly to prevent it from
collapsing in case of earthquake or strong wind.(Refer to
Fig.6-5)

7. INSTALL THE CONNECTING PIPE

Check whether the height drop between the indoor unit and
outdoor unit, the length of refrigerant pipe, and the number of
the bends meet the following requirements:

All field piping must be provided by a licensed
refrigeration technician and must comply with the
relevant local and national codes.
Do not let air, dust, or other impurities fall in the pipe
system during the installation.
The connecting pipe should not be installed until the
indoor and outdoor units have been fixed already.
Keep the connecting pipe dry, and do not let moisture in
during installation.
Execute heat insulation work completely on both sides
of the gas piping and the liquid piping. Otherwise, this
can sometimes result in water leakage.

The Procedure of Connecting Pipes

7.1

Table 7-1

Capacity(Btu/h)

The max height drop

The length of refrigerant pipe

The number of bends

16.4ft/5m

Less than

32.8ft/10m

Less than 5

Fix with bolt

CAUTION

Drill a hole in the wall (suitable just for the size of the wall
conduit), then set on the fittings such as the wall conduit and
its cover.

Bind the connecting pipe and the cables together tightly with
binding tapes.
Pass the bound connecting pipe through the wall conduct
from outside. Be careful of the pipe allocation to avoid
damage to the tubing.

Connect the pipes. Refer to "How to Connect the pipes" for
details.

Expel the air with a vacuum pump. Refer to "How to expel the
air with a vacuum pump" for details.

Open the stop values of the outdoor unit to connect the
refrigerant pipe to the indoor unit with the outdoor unit in
fluent flow.

Check the leakage. Check all the joints with the leak detector
or soap water.

Cover the joints of the connecting pipe with the soundproof /
insulating sheath (fittings), and bind it well with tape to
prevent leakage.

1

2

3

5

6

7

4

Ensure that the insulating materials cover all the exposed
parts of the flare pipe joints and refrigerant pipe on the
liquid-side and the gas-side. Ensure there is no gap
between them.
Incomplete insulation may cause water condensation.

>23.6in/

60cm

9000~12000

9

Fig.7-1

Open the front panel

1

Slide the two stoppers on the left and right sides inword
until they click .(Refer to Fig.7-1)

How to take indoor unit apart to connect
the pipes

Remove the front panel.

2

Remove the string.(Refer to Fig.7-2)
Allowing the front panel to fall forward will enable you to
remove it.

Remove the face plate .

3

Remove the four screws.(Refer to Fig.7-2)
Open the bottom of face plate to a 30 degree angle, then
you can remove the top of the face plate.(Refer to Fig.7-3)

Fig.7-2

Fig.7-3

How to take outdoor unit apart to connect
the pipes

Remove the water tray(Refer to Fig.7-4)

Flaring

1

Cut a pipe with a pipe cutter. (Refer to Fig.7-5)

Insert a flare nut into a pipe and flare the pipe.

Refer to Table 7-2 for the dimension of flare nut spaces.

90

Lean crude burr

Fig.7-5

Fig.7-4

How to Connect the pipes

Water tray

Table 7-2

0.33/8.3 0.34/8.7

0.47/12.0

0.61/15.4

Ø1/4in/6.35

Ø3/8in/9.52

Ø1/2in/12.7

R0.016~0.031

0.4~0.8

45

°

±

2

90

°

±

4

A

357～367 kgf.cm

(35～36 N.m)

255～265 kgf.cm

(25～26N.m)

153～163 kgf.cm

(15～16 N.m)

(in/mm)

min max

Pipe gauge

Tightening torque

Flare dimensin A

Flare shape

0.48/12.4

0.62/15.8

10

2

Bend the tubing in the proper way.

Connect the indoor unit first, then the outdoor
unit.

Too much torque will harm the bellmouthing and an
inadequate amount of torque will cause leakage. Please
determine the torque according to Table 4.

After the connecting work is finished, be sure to check
that there is no gas leak.

The bending angle should not exceed 90.

The bending position is preferably in the middle of the
bendable pipe. The larger the bending radius the better it
is.

Do not bend the pipe more than three times.

When connecting the flare nut, coat the flare both inside
and outside with either oil or ester oil and initially tighten
by hand 3 or 4 turns before tighting firmly.

Bend the pipe with thumb

min-radius 100mm

How to expel the air with a vacuum pump

Stop valve operation introduction

1. Opening stop valve

1.

2.

3.

Remove the cap and turn the valve counter
clock-wise with the hexagon wrench.

Turn it until the shaft stops.Do not apply excessive force
to the stop valve. Doing so may break the valve body,
as the valve is not a backseat type. Always use the
special tool.

Make sure to tighten the cap securely.

Fig.7-6

Fig.7-7

Fig.7-8

Be sure to use both a spanner and torque wrench
together when connecting or disconnecting pipes to /from
the unit.

Make sure to tighten the cap securely.
For the tightening torque,refer to the table below.

2. Closing stop valve

1.

2.

Remove the cap and turn the valve clockwise with the
hexagon wrench.

Securely tighten the valve until the shaft contacts the
main bodyseal.

CAUTION

CAUTION

Always use a charge hose for service port connection.

After tightening the cap, check that no refrigerant leaks exist.

Table 7-3

Tightening torque N M (Turn clockwise to close)

Stop

Valve size Shaft (valve body)

Cap

(Valve lid)

Hexagonal

wrench

0.16in/4 mm

Mainte­nance nut

18～22

13.5～16.55.4～6.6

8.1～9.9

11.5～13.9

1

2

4

3

5

7

6

Using the vacuum pump

Loosen and remove the maintenance nuts of stop valves A
and B, and connect the charge hose of the manifold valve to
the service port of stop valve A. (Be sure that stop valves A
and B are both closed)

Connect the joint of the charge hose with the vacuum pump.

Open the Lo-lever of the manifold value completely.

Turn on the vacuum pump. At the beginning of pumping,
loosen the maintenance nut of stop valve B a little to check
whether the air comes in the (the sound of the pump
changes, and the indicator of compound meter turns below
zero). Then fasten the maintenace nut.

When the pumping has finished, close the Lo-lever of the
manifold valve completely and turn off the vacuum
pump.Continue pumping for 15 minutes or more and check
that the compound meter indicates -2.5ftHg/-76cmHg(-1 X10
Pa)

Loosen and remove the cap of stop valves A and B to open
stop valve A and B completely, then fasten the cap.

Disassemble the charge hose from the service port of stop

5

Fig.7-10

Fig.7-9

service port

cap

maintenance nut

Stop valve

Gas side

Liquid side

hexagon holeshaftseal

Outdoor

unit

Indoor

unit

A

C

D

B

Ø1/4in/6.35

Ø3/8in/9.52

Ø1/2in/12.7

11

CAUTION

Additional Refrigerant Charge

7.2

Refrigerant cannot be charged until field wiring has been
completed.

Refrigerant may only be charged after performing the leak
test and the vacuum pumping.

When charging a system, care shall be taken that the
maximum permissible charge is not exceeded, in view of the
danger of liquid hammer.

Charging with an unsuitable substance may cause explosions
and accidents, so always ensure that the appropriate
refrigerant is charged.

Refrigerant containers shall be opened slowly.

Always use protective gloves and protect your eyes when
charging refrigerant.

Fig.7-11

NOTE

Pressure meterMulti-meter

Lo-lever

Lo-lever

Charge hose Charge hose

Vacuum pump

Hi-lever

Manifold valve

If a negative result is received for R from the formula at
right, no refrigerant needs to be added nor removed.

The outdoor unit is factory charged with refrigerant. Some
systems require additional charging of refrigerant depending
on pipe lengths. The additional refrigerant to be charged can
be calculated from the following formule:

The standard pipe length will vary according to the requirements of
your area. For example, in North America area, the standard pipe
length is 25ft(7.5m). While in the other areas, the standard pipe
length is 16ft(5m).

Inverter R410A:

Liquid side:φ1/4"(6.35) (Total pipe length - standard pipe length)x0.16oZ(15g)/m(ft)
Liquid side:φ3/8"(9.52) (Total pipe length - standard pipe length)x0.32oZ(30g)/m(ft)

CAUTION

The drain pipe of indoor unit must be heat insulated, or it will
condense dew, as well as the connections of the indoor unit.

Hard PVC binder must be used for pipe connection, and make
sure there is no leakage.

With the connection part to the indoor unit, be sure not to
impose pressure on the side of indoor unit pipes.

When the declivity of the drain pipe downwards is over 1/100,
there should not be any winding.

The total length of the drain pipe when pulled out traversely
shall not exceed 20m, when the pipe is over long, a prop stand
must be installed to prevent winding.

Refer to the figures on the right for the installation of the pipes.

8. CONNECT THE DRAIN PIPE

Install the drainpipe of the indoor unit

The outlet has PTI screw thread, Please use sealing materials
and pipe sheath(fitting) when connecting PVC pipes.

Drainage test

Ensure the drainpipe is unhindered.

The newly built housing should have this test preformed
before paving the ceiling.

4.9ft/1.5m~ 6.6ft/2m

Insulating

material

Downward declivity

lower than 1/100

Bend

S shape

VP30

Downward declivity

lower than 1/100

Put as deep as possible

(about 3.9in/10cm)

Fig. 8-1

Install the drain joint of the outdoor unit

Fit the seal into the drain joint, then insert the drain joint into the
base pan hole of outdoor, rotate 90 to securely assemble them.
Connect the drain joint with an extension drain hose (Locally
purchased), in case of the condensation draining off the outdoor
unit during the heating mode.(Refer to Fig.8-2)

-2.5ftHg/-76cmHg

12

CAUTION

NOTE

NOTE

All the pictures in this manual are for illustration purposes only.
They may differ slightly from the air conditioner you
purchased(depending on model).

9. WIRING

The appliance shall be installed in accordance with
national wiring regualtions.

The air conditioner should use aseparate power supply
with rated voltage.

The external power supply to the air conditioner should
have a ground wiring, which is linked to the ground
wiring of the indoor and outdoor unit.

The wiring work should be done by qualified persons
according to circuit drawing.

An all-pole disconnection device which has at least 3mm
separation distance in all pole and a residual current
device(RCD)with the rating of above 10mA shall be
incorporated in the fixed wiring according to the national
rule.

Be sure to locate the power wiring and the signal wiring
well to avoid cross-disturbance.

Do not turn on the power until you have checked the
wiring carefully.

Remark per EMC Directive 89/336/EEC
To prevent flicker impressions during the start of the
compressor (technical process), the following installation
conditions apply.

The power connection for the air conditioner has to be
done at the main power distribution. The distribution must
have low impedance, normally the required impedance
reaches a 32 A fusing point.

No other equipment has to be connected with this power
line.

For detailed installation acceptance please refer to your
power supplier, for products like washing machines, air
conditioners or electrical ovens.

1

2

3

Seal

The base pan hole

of outdoor unit

Drain joint

Seal

The base pan

of outdoor unit

Drain

joint

Fig.8-2

NOTE

Dissemble the bolts from the cover.(If there isn't a cover on
the outdoor unit, disassemble the bolts from the maintenance
board, and pull it in the direction of the arrow to remove the
protection board.)

(Refer to Fig.9-2)

Rotate the installation bearer of the sensing device to the
other side, and then take off the cover of electrical box. (Take
off the electrical box if the capacity is 18000btu/h and its
using the network function.)

(Refer to Fig.9-1)

Connect the cable

9.1

Fig.9-2

Protection board

Cover

For power details of the air conditioner refer to the rating
plate of the product.

If you have any questions, contact your local dealer.

4

5

All the pictures in this manual are for illustration
purposes only. They may differ slightly from the air
conditioner you purchased(depending on the model).

Installation bearer
of sensing device

Fig.9-1

13

(Only 1800 BTU/h units have the network address set function.)

Every air conditioner in the network has one network address to
distinguish it from the other. The address code of the air conditioner
in LAN is set by code switches S1 & S2 on the Main Control Board
of the indoor unit, and the set range is 0-63.

Network address set

9.4

Table 9-1

Connect the connective cables to the terminals as identified
with their respective matched numbers on the terminal block
of the indoor and outdoor units.

Re-install the Indoor unit and outdoor unit

The Specification of Power

9.2

Wiring figure

9.3

(Refer to Table 9-2)

(Refer to Fig9-4～Fig9-7)

10. TEST OPERATION

The test operation must be performed after the entire
installation has been completed.

Please confirm the following points before the test operation:

2

1

According to the user's requirement, install the remote
controller frame where the remote controller's signal can best
reach the indoor unit.

Test the operation.

4

3

The indoor unit and outdoor unit are installed properly.

Tubing and wiring are correctly completed.

The refrigerant pipe system is leakage-checked.

The drainage is unimpeded.

The heating insulation works well.

The ground wiring is connected correctly.

The length of the tubing and the added stow capacity of
the refrigerant have been recorded.

The power voltage fits the rated voltage of the air
conditioner.

There is no obstacle at the outlet and inlet of the outdoor
and indoor units.

The gas-side and liquid-side stop valves are both opened.

The air conditioner is pre-heated by turning on the power.

Set the air conditioner to the "COOLING" mode with the
remote controller, and check the following points. If there is
any malfunction, please resolve it according to the
"Troubleshooting" chapter in the "Owner's Manual".

1) The indoor unit
a. Ensure the switch on the remote controller works well.
b. Ensure the buttons on the remote controller works well.
c. Ensure the air flow louver moves normally.
d. Ensure the room temperature is adjusted well.
e. Ensure the indicator lights normally.
f. Ensure the temporary buttons works well.
g. Ensure the drainage is normal.
h. Ensure there is no vibration or abnormal noise during
operation.
I. Ensure the air conditioner heats well in the case of the
HEATING/COOLING type.

2) The outdoor unit
a. Ensure there is no vibration or abnormal noise during
operation.
b. Ensure the generated wind, noise, or the unit's
condensation have not negatively effected the
surrounding environment
c. Ensure none of the refrigerant has leaked.

A protection feature prevents the air conditioner from being
activated for approximately 3 minutes when it is restarted
immediately after shut off.

CAUTION

14

The Specification of Power

(A)

(sq in/mm2)

(sq in/mm²)

208-230V~, 50Hz/60Hz

TYPE

POWER

GROUND WIRING

OUTDOOR UNIT POWER
WIRING

STRONG ELECTRIC
SIGNAL

INDOOR/OUTDOOR
CONNECTING
WIRING

CIRCUIT BREAKER/FUSE

INDOOR UNIT POWER WIRING

PHASE 1-PHASE

FREQUENCY AND VOLT

20/16 20/16

12000Btu/h

(Cooling & Heating)

16000~

18000Btu/h

(Cooling & Heating)

208-230V~, 50Hz/60Hz

1-PHASE

0.06/1.5

0.1/2.5

0.12x0.1/3x2.5

0.12x0.06/3X1.5

0.16x0.04/4X1.0

WEAK ELECTRIC
SIGNAL

0.12x0.04/3x1.0

0.12x0.02/3x0.5

Table 9-2

Wiring figure

The power supply included in the power supply mentioned above can be applied to the table.

Before obtaining access to terminals, all supply circuits must be disconnected.

CAUTION

Fig.9-4

Ground wiring

Ground wiring

Power supply

Switch/Fuse
(Available locally)

Power wiring (indoor)

Power linking wiring (Outdoor)

Strong elec-signal link wiring

Weak elec-signal link wiring

Indoor
Unit

Outdoor
Unit

Ground the air conditioner properly in case to affect its anti-interference function

15

Fig.9-5

Ground wiring

Ground wiring

Power supply

Switch/Fuse

(Available locally)

Power wiring (outdoor)

Power linking wiring (indoor)

Strong elec-signal link wiring

Weak elec-signal link wiring

Indoor
Unit

Outdoor

Unit

Ground the air conditioner properly.

Fig.10-6

Ground wiring

Ground wiring

Power supply

Switch/Fuse
(Available locally)

Power wiring (indoor)

Power linking wiring (Outdoor)

Weak elec-signal link wiring

Indoor
Unit

Outdoor
Unit

Power supply

Ground the air conditioner properly.

---

---

---

---

Magnetic ring(optional)
Connect the communication cable and wind for two circles.

16

A disconnection device with a air gap contact separation in all active conductors should be
incorporated in the fixed wiring according to the National Wiring Regulation.

When wiring, please choose the corresponding chart, or it may cause damage.The signs of the
indoor terminal block in the some of following figures may be replaced by L N L1 N1.

CAUTION

Fig.9-7

Ground wiring

Ground wiring

Power supply

Switch/Fuse

(Available locally)

Power wiring (outdoor)

Strong elec-signal link wiring

Weak elec-signal link wiring

Indoor
Unit

Outdoor

Unit

Ground the air conditioner properly.

17

Copyright 2014 Carrier Corporation S 7310 W. Morris St. S Indianapolis, IN 46231

Manufacturer reserves the right to change, at any time, s pecifications and designs without notice and without obligations.

Edition Date: /1411

Replaces: New