Cooper&Hunter CH12LCDTUI, CH18LCDTUI, CH09LCDTUI Installation Manual

CH-09LCDTU/I
CH-12LCDTU/I
CH-18LCDTU/I
CH-24LCDTU/I

Table of Contents

Installation Manual

1

Accessories ....................................... 05

2

Safety Precautions . .......................... 06

3

Installation Overview ....................... 07

4

Indoor Unit Installation .................... 08

5

Outdoor Unit Installation . 13

a. Outdoor Unit Installation Instructions . 13

b. Outdoor Unit Types and Specifications .... 14

c. Notes on Drilling Hole in Wall . 15

a. Indoor Unit Parts .............................. 08

b. Indoor Unit Installation Instructions ..... 09

6

Drainpipe Installation ....................... 16

Refrigerant Piping Connection ....................... 18

7

A. Notes on Pipe Length and Elevation .............. 18

B. Refrigerant Piping Connection Instructions ...20

L N

8

Wiring ................................................. 23

a. Outdoor Unit Wiring .................. 23

b. Indoor Unit Wiring ..................... 24

c. Power Specifications ................... 26

9

Air Evacuation .................................................. 28

a. Evacuation Instructions ................................ 28

b. Note on Adding Refrigerant ....................... 29

MC MC

10

Test Run ............................................. 30

 Page 3 

Accessories

1

The air conditioning system comes with the following accessories. Use all of the installation parts
and accessories to install the air conditioner. Improper installation may result in water leakage,
electrical shock and re, or equipment failure.

Tubing & Fittings

Drainpipe Fittings
(for cooling & heating)

EMC Magnetic Ring
(some models)

Soundproof / insulation sheath

Seal sponge (some models)

Orice (some models)

Drain joint (some models)

Seal ring (some models)

Magnetic ring
(wrap the electric wires S1 & S2 ( P & Q & E )
around the magnetic ring twice)

Magnetic ring
(Hitch on the connective cable between the indoor
unit and outdoor unit after installation.)

Owner‘s manual

Installation manual

SHAPENAME

S1&S2(P&Q&E)

QUANTITY

2

1

1

1

1

1

1

1

1

Others

Wireless remote control manual

Wired remote control manual

Connecting wire for display (2m)

Display panel
*Just for testing purposes only

1(on some models)

1(on some models­KJR-120G,KJR-120H)

Optional accessories

•

There are two types of remote controls: wired and wireless.
Select a remote controller based on customer preferences and requirements and install in an
appropriate place.
Refer to catalogues and technical literature for guidance on selecting a suitable remote controller.



1

1

Page 5



Safety Precautions

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

2

Read Safety Precautions Before Installation

Incorrect installation due to ignoring instructions can cause serious damage or injury.

The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION.

Failure to observe a warning may result in death. The product must be installed by

WARNING

CAUTION

WARNING

installers or contractors who are licensed HVAC professionals and in compliance with
all local, state and provincial laws.

• Carefully read the Safety Precautions before installation.

• In certain functional environments, such as kitchens, server rooms, etc., the use of specially

designed air-conditioning units is highly recommended.

• Only trained and certified technicians should install, repair and service this air
conditioning unit.

Improper installation may result in electrical shock, short circuit, leaks, fire or other damage to
the equipment and personal property.

• Strictly follow the installation instructions set forth in this manual.

Improper installation may result in electrical shock, short circuit, leaks, fire or other damage to
the equipment.

• Before you install the unit, consider strong winds, typhoons and earthquakes that might aect
your unit and locate it accordingly. Failure to do so could cause the equipment to fail.

• After installation, ensure there are no refrigerant leaks and that the unit is operating properly.
Refrigerant is both toxic and flammable and poses a serious health and safety risk.

Note about Fluorinated Gases

This air-conditioning unit contains fluorinated gases. For specific information on the type of gas

1.
and the amount, please refer to the relevant label on the unit itself.

2.

Installation, service, maintenance and repair of this unit must be performed by a certified
technician.
Product uninstallation and recycling must be performed by a certified technician.

3.

4.

If the system has a leak-detection system installed, it must be checked for leaks at least every 12
months.

5.

When the unit is checked for leaks, proper record-keeping of all checks is strongly recommended.

 Page 6



Installation Overview

L N

INSTALLATION ORDER

Unit Installation

Overview

3

1

Install the indoor unit

(Page 8)

6

MC MC

2

Install the outdoor unit

(Page 13)

5

3

Install the drainpipe

(Page 15)

4

Evacuate the refrigeration system

(Page 28)

7

Perform a test run

(Page 30)

Connect the wires

(Page 23)

Connect the refrigerant pipes

(Page 18)

 Page 7  

Indoor Unit

Installation

Indoor Unit Parts

Indoor Unit Installation

4

Air inlet

Electric control cabinet

Air filter(on selected models)

Air outlet

Fig. 4.1

Safety Precautions

WARNING

• Securely install the indoor unit on a structure

that can sustain its weight. If the structure is
too weak, the unit may fall causing personal
injury, unit and property damage, or even
death

• DO NOT install the indoor unit in a bathroom

or laundry room as excessive moisture can
short the unit and corrode the wiring.

Indoor Unit Installation Instructions

Step 1: Select installation location

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

√

Enough room for installation and maintenance.



√

 Enough room for the connecting pipe and

drainpipe.

√

 The ceiling is horizontal and its structure can

sustain the weight of the indoor unit.

√

 The air inlet and outlet are not impeded.

√

 The airflow can fill the entire room.

√

 There is no direct radiation from heaters.

√



It is embeded installation.

Drain hose

Refrigerant connecting pipe

CAUTION

• Install the indoor and outdoor units, cables
and wires at least 1m (3.2’) from televisions
or radios to prevent static or image
distortion. Depending on the appliances, a
1m (3.2’) distance may not be sufficient.

• If the indoor unit is installed on a metal
part of the building, it must be grounded.

CAUTION

DO NOT install the unit in the following

locations:

Where oil drilling or fracking is taking place.

Coastal areas with high salt content in the air

Near geothermal activity and corrosive gas

Buildings that may experience power

Enclosed spaces

Areas with strong electromagnetic waves

Areas that store ammable materials or gas

Rooms with high humidity, such as

uctuations

bathrooms or laundry rooms

 Page 8 

Installation place

Strong and durable ceiling

Left
side

Indoor unit

Right
side

>0.8in(2cm)

B

>0.8in(2cm)

>11.8in(30cm)

Indoor Unit

Installation

>4in(10cm) >11.8in(30cm)

Maintenance space

> (20cm)

7.9

in

Air outlet

Service access Ceiling

Floor

> (30cm)

11.8in

(When no ceiling)

> 8.2in(250cm)

Air inlet

23.6inx23.6in (60cmx60cm)
checking orifice

Fig. 4.2

Step 2: Hang indoor unit.

1. Please refer to the following diagrams to locate the four positioning screw bolt holes on the
ceiling. Be sure to mark the paces where you will drill ceiling hook holes.

Air outlet dimensions

 Page 9 

Indoor Unit

Installation

Air inlet dimensions

Air lter

Descending ventilation opening and mounted hook

Air lter

Electric control box

Fig. 4.3

Table.4-1 (unit: inch/mm)

MODEL

(Btu/h)

9K/12K

18K

24K

30K~36K

36K~60K

A B C

Outline dimension

7.9/200 19.9/50627.6/700

8.3/210 26.5/67434.6/880 5.4/136 27.8/70623.6/600

9.8/249 30.5/77443.3/1100 6.9/175 36.5/92627.6/700

9.8/249 30.5/77453.5/1360

11.8/300 34.4/87447.2/1200

Wood

Place the wood mounting across the roof beam,

air outlet opening size

D E F

6/152 21.1/53717.7/450 7.3/186 29.2/74123.6/599

6.9/175 46.7/118627.6/700

8.9/227 41.1/104431.5/800

New concrete bricks

Inlay or embed the screw bolts. (See Fig. 4.5)

air return opening size

G

7.5/190

8.9/228

8.9/228

11/280

H

Size of mounted lug

I

36.2/92030.8/782

44.9/114039.4/1001

55.1/140049.6/1261

48.8/124043.3/1101

then install the hanging screw bolts.(See Fig.4.4)

Wood mounting

Roof beam

Ceiling

(Blade shape insertion)

Fig. 4.5

(Slide insertion)

Hanging screw bolts

Fig. 4.4

Original concrete bricks

Use an embedding screw bolt, crock, and stick

Steel Roof beam structure

Install and use the supporting steel angle.
(See Fig.4.7)

harness.(See Fig.4.6)

Hanging screw bolt

J

14.2/360

20/508

23.5/598

23.5/598

27.4/697

(Pipe hanging and embedding screw bolt)

 Page 10 

Steel bar

Embedding screw bolt

Fig. 4.6

Hanging
bolts

Supporting
steel angle

Fig. 4.7

CAUTION

The unit body must be completely aligned with
the hole. Ensure that the unit and the hole are
the same size before moving on.

Shockproof cushion

Washer

Screw nut

Overhang part

Indoor Unit

Installation

2.

Install and t pipes and wires after you have
nished installing the main body.When
choosing where to start, determine the
direction of the pipes to be drawn out.
Especially in cases where there is a ceiling
involved, align the refrigerant pipes, drain
pipes, and indoor and outdoor lines with their
connection points before mounting the unit.

3.

Install hanging screw bolts.

Cut o the roof beam.
Strengthen the point at which the cut

was made. Consolidate the roof beam.

4. After you select an installation location,align
the refrigerant pipes, drain pipes, as well as
indoor and outdoor wires with their
connection points before mounting the unit.

5.

Drill 4 holes 10cm (4”) deep at the ceiling
hook positions in the internal ceiling. Be sure
to hold the drill at a 90° angle to the ceiling.

6.

Secure the bolt using the washers and nuts
provided.

7. Install the four suspension bolts.

8. Mount the indoor unit with at least two
people to lift and secure it. Insert suspension
bolts into the unit’s hanging holes. Fasten
them using the washers and nuts provided.
(See Fig. 4.8).

Hanging screw bolt

NOTE:

Conrm the minimum drain tilt is 1/100

Fig. 4.9

or more.

Step 3: Duct and accessories installation

1. Install the lter (optional) according to the size
of the air inlet.

2. Install the canvas tie-in between the body and
the duct.

3. The air inlet and air outlet duct should be far
enough apart enough to a avoid air passage
short-circuit.

Connect the duct according to the following

4.
diagram:

Air outlet

Isolation booth

Canvas tie-in Canvas tie-in

Isolation booth

Air inlet

checking orice

Air dust lter

Fig. 4.10

5. Refer to the following static pressure guidelines
when installing the indoor unit.

Table.4-2

MODEL

(Btu/h)

Static Pressure

(Pa/in.wg)

Fig. 4.8

9. Mount the indoor unit onto the hanging
screw bolts with a block. Position the
indoor unit at using a level indicator to
prevent leaks. (See Fig. 4.9).

9K

12K

18K

24K

30K~36K

42K~60K

0~50/0~0.2

0~50/0~0.2

0~100/0~0.4

0~160/0~0.64

0~160/0~0.64

0~160/0~0.64

Change the fan motor static pressure
according to external duct static pressure.

NOTE: 1. Do not place the connecting duct

weight on the indoor unit.

2. When connecting the duct, use an
nonammable canvas tie-in to prevent
vibrating.

3. Insulation foam must be wrapped outside the
duct to avoid condensate. An internal duct
underlayer can be added to reduce noise,
if the end-user requires.

 Page 11 

Step 4: Adjust the air inlet direction
(from rear side to under-side).

Indoor Unit

Installation

1. Take o the ventilation panel and ange.

Step 5: Fresh air duct installation

Dimension :

Duct joint for fresh air

Air return ange

MODLE

18-60

Ventilation panel

Fig. 4.11

2. Change the mounting positions of the
ventilation panel and air return ange.

Ventilation panel

Air return ange

Fig. 4.12

3. When installing the lter mesh, t it into the
ange as illustrated in the following gure.

Ø125mm(4.92”)

Ø160mm(6.3”)

Fig. 4.14

Step 6: Motor and drain pump maintenance

(the rear ventilated panel is used as an example)

Motor maintain:

Take o the ventilated panel.

1.
Take o the blower housing.

2.
Take o the motor.

3.

Fig. 4.13

NOTE: All the gures in this manual are for

demonstration purposes only. The air conditioner
you have purchased may be slightly dierent in
design, though similar in shape.

Motor

Blower housing

Ventilated panel

Fig. 4.15

Pump maintainance:

Remove four screws from the drain pump.

1.
Unplug the pump power supply and water

2.
level switch cable.
Detach the pump.

3.

Pump

Fig. 4.16

 Page 12 

Outdoor Unit Installation

Strong wind

Outdoor Unit Installation Instructions

Step 1: Select installation location.

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

√

 Place the outdoor unit as close to the indoor

unit as possible.

√

 Ensure that there is enough room for

installation and maintenance.

√

 The air inlet and outlet must not be

obstructed or exposed to strong wind.

√

 Ensure the location of the unit will not be

subject to snowdrifts, accumulation of leaves
or other seasonal debris. If possible, provide
an awning for the unit. Ensure the awning
does not obstruct airflow.

√

 The installation area must be dry and well

ventilated.

√

 There must be enough room to install the

connecting pipes and cables and to access
them for maintenance.

5

√

 The area must be free of combustible gases

and chemicals.

√

 The pipe length between the outdoor and

indoor unit may not exceed the maximum
allowable pipe length.

√

 If possible, DO NOT install the unit where it

is exposed to direct sunlight.

√

 If possible, make sure the unit is located far

away from your neighbors’ property so that
the noise from the unit will not disturb them.

√

 If the location is exposed to strong winds (for

example: near a seaside), the unit must be
placed against the wall to shelter it from the
wind. If necessary, use an awning.
(See Fig. 5.1 & 5.2)

√

 Install the indoor and outdoor units, cables

and wires at least 1 meter from televisions or
radios to prevent static or image distortion.
Depending on the radio waves, a 1 meter
distance may not be enough to eliminate all
interference.

Outdoor Unit

Installation

Strong wind

Fig. 5.1 Fig. 5.2

Step 2: Install outdoor unit.

Fix the outdoor unit with anchor bolts (M10)

> 23.6”/60cm

CAUTION

• Be sure to remove any obstacles that

Fix with bolts

may block air circulation.

• Make sure you refer to Length

Specifications to ensure there is
enough room for installation and
maintenance.

Strong wind

Fig. 5.3

 Page 13 

(Wall or obstacle)

W

Split Type Outdoor Unit

Vertical Discharge Type Outdoor Unit

Outdoor Unit

Installation

(Refer to Fig 5.4, 5.5, 5.6, 5.10 and Table 5.1)

H

Fig. 5.4

W

W

Fig. 5.5

(Refer to Fig 5.7, 5.8, 5.9 and Table 5.2)

Air Outlet

> 47”/120cm

Fig. 5.7

H

Fig. 5.8

H

D

A

D

B

Fig. 5.6

Table 5.1: Length Specifications of Split

Type Outdoor Unit (unit: inch/mm)

Outdoor Unit Dimensions

W x H x D

770x555x300 (30.3x21.85x11.81) 19.2 (487) 11.73 (298)

810x558x310 (31.9x22x12.2) 21.6 (549) 12.8 (325)

845x700x320 (33.27x27.5x12.6) 22 (560) 13.2 (335)

900x860x315 (35.4x33.85x12.4) 23.2 (590) 13.1 (333)

945x810x395 (37.2x31.9x15.55) 25.2 (640) 15.95 (405)

990x965x345 (38.98x38x13.58) 24.58 (624) 14.4 (366)

938x1369x392 (36.93x53.9x15.43) 24.96 (634) 15.9 (404)

900x1170x350 (35.4x46x13.8) 23.2 (590) 14.88 (378)

800x554x333 (31.5x21.8x13.1) 20.24 (514) 13.39 (340)

845x702x363 (33.27x27.6x14.3)

946x810x420 (37.24x31.9x16.53) 26.5 (673)

946x810x410 (37.24x31.9x16.14) 26.5 (673)

952x1333x410 (37.5x52.5x16.14) 24.96 (634)

952x1333x415 (37.5x52.5x16.34) 24.96 (634)

Mounting Dimensions

Distance A Distance B

21.26 (540)

13.8 (350)

15.87 (403)

15.87 (403)

15.9 (404)

15.9 (404)

(Wall or obstacle)

>11.8”/30cm

>11.8”/30cm

Air inlet

Air inlet

Air inlet

>11.8”/30cm

Air inlet

>11.8”/30cm

Fig. 5.9

Table 5.2: Length Specifications of Vertical

Discharge Outdoor Unit (unit: inch/mm)

DIMENSIONS

DIMENSIONS

MODEL

18 25/633 21.8/55421.8/554

24 25/633 21.8/55421.8/554

36 29.8/759 21.8/55421.8/554

36 25/633 23.6/60023.6/600

48 29.8/759 28/71028/710

60 33/843 28/71028/710

W H D

 Page 14 

NOTE: The minimum distance between the

outdoor unit and walls described in the
installation guide does not apply to airtight
rooms. Be sure to keep the unit unobstructed
in at least two of the three directions (M, N, P)
(See Fig. 5.10)

2. Insert the drain joint into the hole in the base
pan of the unit.

3. Rotate the drain joint 90° until it clicks in place
facing the front of the unit.

4. Connect a drain hose extension (not included)
to the drain joint to redirect water from the
unit during heating mode.

above

60 cm

78”

11.8”

200 cm

/

/

30 cm

on left

M

in front

/

23.6”

N

11.8”

30 cm

/

from back wall

23.6”

/

60 cm

on right

P

Fig. 5.10

Rows of series installation

Table 5.3 The relations between H, A and L
are as follows.

L A

L ≤ 1/2H

9.8”

/

25 cm or more

L ≤ H

L > H

1/2H < L ≤ H

Can not be installed

11.8”/ 30 cm or more

If the drain joint doesn’t come with a rubber
seal (see Fig. 5.12 - B ), do the following:

1. Insert the drain joint into the hole in the base
pan of the unit. The drain joint will click in
place.

2. Connect a drain hose extension (not included)
to the drain joint to redirect water from the
unit during heating mode.

NOTE: Make sure the water drains to a safe

location where it will not cause water damage
or a slipping hazard.

Base pan hole of
outdoor unit

Seal

Seal

Outdoor Unit

Installation

9.8”

or more

/

25 cm

9.8”

or more

/

25 cm

23.6”
or more

60 cm

/

Fig. 5.11

H

150 cm

/

59”

or more

118”

300 cm

/

or more

Drain Joint Installation

If the drain joint comes with a rubber seal
(see Fig. 5.12 - A ), do the following:

1. Fit the rubber seal on the end of the drain joint
that will connect to the outdoor unit.

Drain joint

(A)

Fig. 5.12

L

Notes On Drilling Hole In Wall

A

You must drill a hole in the wall for the
refrigerant piping, and the signal cable that will
connect the indoor and outdoor units.

1. Determine the location of the wall hole
based on the location of the outdoor unit.

2. Using a 2.5”(65-mm) core drill, drill a hole
in the wall.

NOTE: When drilling the wall hole, make

sure to avoid wires, plumbing, and other
sensitive components.

3. Place the protective wall cu in the hole.
This protects the edges of the hole and will
help seal it when you nish the installation
process.

(B)

 Page 15 

Drainpipe Installation

6

The drainpipe is used to drain water away from
the unit. Improper installation may cause unit
and property damage.

CAUTION

•

Insulate all piping to prevent condensation,
which could lead to water damage.

• If the drainpipe is bent or installed

Installation

Drainpipe

incorrectly, water may leak and cause a
water-level switch malfunction.

• In HEAT mode, the outdoor unit will

discharge water. Ensure that the drain hose
is placed in an appropriate area to avoid
water damage and slippage.

• DO NOT pull the drainpipe forcefully. This

could disconnect it.

NOTE ON PURCHASING PIPES

Installation requires a polyethylene tube
(exterior diameter = 3.7-3.9cm, interior diameter
= 3.2cm), which can be obtained at your local
hardware store or dealer.

Indoor Drainpipe Installation

Install the drainpipe as illustrated in Figure 6.2.

Cover the drainpipe with heat insulation to

1.
prevent condensation and leakage.

2.

Attach the mouth of the drain hose to the
unit’s outlet pipe. Sheath the mouth of the
hose and clip it rmly with a pipe clasp.
(See Fig 6.1)

Drain hose

NOTE ON DRAINPIPE INSTALLATION

•

When using an extended drainpipe, tighten
the indoor connection with an additional
protection tube. This prevents it from
pulling loose.

• The drainpipe should slope downward at a

gradient of at least 1/100 to prevent water
from flowing back into the air conditioner.

• To prevent the pipe from sagging, space

hanging wires every 1-1.5m (39-59”).

• If the outlet of the drainpipe is higher than

the body’s pump joint, provide a lift pipe for
the exhaust outlet of the indoor unit. The
lift pipe must be installed no higher than
55cm (21.7”) from the ceiling board. the
distance between the unit and the lift pipe
must be less than 20cm (7.9”). Incorrect
installation could cause water to flow back
into the unit and flood.

• To prevent air bubbles, keep the drain hose

level or slightly tiled up (<75mm / 3”).

Drainpipe installation for units with a pump

Ceiling

<7.9”
20cm

0- 3”

0 - 75mm

39-59”

(39-59

1-1.5m

Lean over 1/50

(21.7”)

<55cm

Fig. 6.3

Drainpipe

connecting port

 Page 16 

Pipe clasp

Ceiling

Fig. 6.1

Fig. 6.2

39-59”
(1-1.5m)

NOTE: When connecting multiple drainpipes,

install the pipes as illustrated in Fig 6.4.

Insulation

0-20.8”
(0-53cm)

≥ 4”

≥(10cm)

Lean over 1/50

Fig. 6.4

3. Using a 65-mm (2.5”) core drill, drill a hole in

C

L

O

S

E

D

O

P

E

N

C

L

O

S

E

D

O

P

E

N

the wall. Make sure that the hole is drilled at
a slight downward angle, so that the outdoor
end of the hole is lower than the indoor end
by about 12mm (0.5”). This will ensure proper
water drainage (See Fig. 6.5). Place the
protective wall cu in the hole. This protects
the edges of the hole and will help seal it
once you nish installation.

Wall

IndoorOutdoor

≈ 0.5 inch /12mm

Fig. 6.5

Units with a pump.

1. Remove the test cover.
Fill the water pan with 2 liters of water.

Drainpipe

Installation

NOTE: When drilling the hole, make sure to

avoid wires, plumbing, and other sensitive
components.

4. Pass the drain hose through the wall hole.
Make sure the water drains to a safe location
where it will not cause water damage or a
slipping hazard.

NOTE: The drainpipe outlet should be at least

1.9” (5cm) above the ground. If it touches the
ground, the unit may become blocked and
malfunction. If you discharge the water directly
into a sewer, make sure that the drain has a U
or S pipe to catch odors that might otherwise
come back into the house.

Drainage test

Check that the drainpipe is unhindered.
This test should be performed on newly built
houses before the ceiling is paved.

Units without a pump.

Test cap

Fig.6.7

Stow tube

Fig.6.8

2. Turn on the unit in COOLING mode. You will
hear the drain pump.Check whether the
water is discharged properly (a 1-minute lag
is possible, depending on the length of the
drain pipe), Check whether water leaks from
the joints.

Stow tube

Fill the water pan with 2 liters of water.
Check that the drainpipe is unhindered.

3. Turn o the air conditioner and put the cap
back on.

Fig.6.6

 Page 17 

Refrigerant Piping Connection

7

Safety Precautions

• All eld piping must be completed by a

• When the air conditioner is installed in a

Connection

Refrigerant Piping

• When installing the refrigeration system,

WARNING

licensed technician and must comply with
the local and national regulations.

small room, measures must be taken to
prevent the refrigerant concentration in
the room from exceeding the safety limit
in the event of refrigerant leakage. If the
refrigerant leaks and its concentration
exceeds its proper limit, hazards due to
lack of oxygen may result.

ensure that air, dust, moisture or foreign
substances do not enter the refrigerant
circuit. Contamination in the system may
cause poor operating capacity, high
pressure in the refrigeration cycle,
explosion or injury.

Notes On Pipe Length and Elevation

Ensure that the length of the refrigerant pipe, the
number of bends, and the drop height between
the indoor and outdoor units meets the
requirements shown in Table 7.1:

Table 7.1: The Maximum Length And Drop

Height Based on Models. (Unit: m/ft.)

Type of model Capacity

North America,
Australia and the
eu frequency
conversion Split
Ty p e

Other Split Type

(Btu/h)

<15K 82/25 32.8/10

≥15K - <24K 98.4/30 65.6/20

≥24K - <36K 164/50 82/25

≥36K - ≤60K 213/65 98.4/30

12K 49/15 26/8

18K-24K 82/25 49/15

30K-36K 98.4/30 65.6/20

42K-60K 164/50 98.4/30

Length of

piping

Maximum drop

height

• Ventilate the area immediately if there is
refrigerant leakage during the installation.

Leaked refrigerant gas is both toxic and
flammable. Ensure there is no refrigerant
leakage after completing the installation
work.

Refrigerant Piping with Twin Indoor Units

When installing multiple indoor units with a single outdoor unit, ensure that the length of the
refrigerant pipe and the drop height between the indoor and outdoor units meet the requirements
illustrated in the following diagram:

Outdoor unit

The drop height
between indoor

unit
and outdoor unit
must be less than

or equal to 20m

(65.6’)

H2

L

The line branch pipe

L1

L2

Indoor unit

H1

Indoor unit

The drop height

between two

indoor units

must be less

than or equal to

19.6”(50cm)

Fig. 7.1

 Page 18 

CAUTION

CAUTION

•

Oil traps

If the indoor unit is installed higher than the
outdoor unit:

-If oil flows back into the outdoor unit’s
compressor, this might cause liquid
compression or deterioration of oil return.
Oil traps in the rising gas piping can prevent
this.

An oil trap should be installed every 32.8ft
(10m) of vertical suction line riser. (See Fig.

7.2)

If the outdoor unit is installed higher than the
indoor unit:

-It is recommended that vertical suction risers
not be upsized. Proper oil return to the
compressor should be maintained with suction
gas velocity. If velocities drop below7.62m/s
(1500fpm (feet per minute)), oil return will be
decreased. An oil trap should be installed every
20ft (6m) of vertical suction line riser.
(See Fig. 7.3)

Connection

Refrigerant Piping

Fig. 7.2 Fig. 7.3

The indoor unit is installed higher than the
outdoor unit

The outdoor unit is installed higher than the
indoor unit

 Page 19 

Point dow

Piping
length

Drop
height

Table 7.2

Permitted length

Total piping length 18K+18K 98’/30m L+Max

24K+24K

30K+30K

(farthest distance from
the line pipe branch)

(farthest distance from
the line pipe branch)

Drop height between
indoor and outdoor unit

Drop height between
two indoor units

164’/50m

49’/15m L1, L2

32.8’/10m L1-L2

65.6’/20m H1

1.6’/0.5m H2

(L1, L2)

Step1: Cut pipes

When preparing refrigerant pipes, take extra
care to cut and flare them properly. This will
ensure efficient operation and minimize the
need for future maintenance.

1. Measure the distance between the indoor
and outdoor units.

2. Using a pipe cutter, cut the pipe a little

longer than the measured distance.

Size of joint pipes for indoor unit

Table 7.3

Capacity
of indoor
unit (A)

18K

Refrigerant Piping

Connection

24K

30K

Size of joint pipes for outdoor unit

Base on the following tables, select the diameters
of the outdoor unit connective pipes. In case of the
main accessory pipe larger than the main pipe, take

the larger one for the selection.

Table 7.4

Model

36K
48K
60K

Size of joint pipes for 410A indoor unit

Size of main pipe(mm)

Gas side

Ø0.5”(12.7)

Ø0.626”(15.9)

Ø0.626”(15.9)

Liquid side

Ø0.25”(6.35)

Ø0.375”(9.5)

Ø0.375”(9.5)

Available
branching pipe

CE-FQZHN-01C

CE-FQZHN-01C

CE-FQZHN-01C

Size of joint pipes for 410A outdoor unit

the size of main pipe(mm)

Gas side Liquid side

Ø0.626”(15.9)

Ø0.626”(15.9)

Ø0.626”(15.9)

Ø0.375”(9.5)

Ø0.375”(9.5)

Ø0.375”(9.5)

The 1st branching pipe
CE-FQZHN-01C
CE-FQZHN-01C

CE-FQZHN-01C

CAUTION

DO NOT deform pipe while cutting. Be extra

careful not to damage, dent, or deform the pipe
while cutting. This will drastically reduce the
heating efficiency of the unit.

1. Make sure that the pipe is cut at a perfect
90° angle. Refer to Fig. 7.4 for examples
of bad cuts

90°

Step2: Remove burrs.

Burrs can aect the air-tight seal of refrigerant
piping connection. They must be completely
removed.

Oblique

Fig. 7.4

Rough

Warped

Refrigerant Piping Connection Instructions

CAUTION

• The branching pipe must be installed

horizontally. An angle of more than 10° may
cause malfunction.

• DO NOTinstall the connecting pipe until both

indoor and outdoor units have been installed.

• Insulate both the gas and liquid piping to

prevent water leakage.

 Page 20 

1. Hold the pipe at a downward angle to
prevent burrs from falling into the pipe.

2. Using a reamer or deburring tool, remove
all burrs from the cut section of the pipe.

Pipe

Reamer

n

Fig. 7.5

Step 3: Flare pipe ends

Proper flaring is essential to achieve an
airtight seal.

1. After removing burrs from cut pipe, seal
the ends with PVC tape to prevent foreign
materials from entering the pipe.

2. Sheath the pipe with insulating material.

3. Place flare nuts on both ends of pipe.
Make sure they are facing in the right
direction, because you can’t put them on
or change their direction after flaring.
See Fig. 7.6

Flare nut

Copper pipe

Fig. 7.6

4. Remove PVC tape from ends of pipe when
ready to perform flaring work.

5. Clamp flare form on the end of the pipe.
The end of the pipe must extend beyond
the flare form.

Flare form

Table 7.5: PIPING EXTENSION BEYOND FLARE FORM

Pipe
gauge

Ø 6.4

Ø 9.5

Ø 12.7

Ø 15.9

Ø 19.1

Ø 22

Tightening

torque

18-20 N.m

(183-204 kgf.cm)

25-26 N.m

(255-265 kgf.cm)

35-36 N.m

(357-367 kgf.cm)

45-47 N.m

(459-480 kgf.cm)

65-67 N.m

(663-683 kgf.cm)

75-85N.m

(765-867 kgf.cm)

Flare dimension (A)

(Unit: Inch/mm)

Min. Max.

0.33/8.4 0.34/8.7

0.52/13.2 0.53/13.5

0.64/16.2 0.65/16.5

0.76/19.2 0.78/19.7

0.91/23.2 0.93/23.7

1.04/26.4 1.06/26.9

Flare shape

°

4

±

90

45

A

R0.4~0.8

Fig. 7.8

°

±

2

8. Remove the flaring tool and flare form, then
inspect the end of the pipe for cracks and
even flaring.

Step 4: Connect pipes

Connect the copper pipes to the indoor unit first,
then connect it to the outdoor unit. You should
first connect the low-pressure pipe, then the high­pressure pipe.

1. When connecting the flare nuts, apply a
thin coat of refrigeration oil to the flared
ends of the pipes.

2. Align the center of the two pipes that
you will connect.

Refrigerant Piping

Connection

Pipe

Fig. 7.7

6. Place flaring tool onto the form.

7. Turn the handle of the flaring tool
clockwise until the pipe is fully flared.
Flare the pipe in accordance with the
dimensions shown in table 7.5.

Indoor unit tubing

Flare nut

Pipe

Fig. 7.9

3. Tighten the flare nut as tightly as possible by hand.

4. Using a spanner, grip the nut on the unit tubing.

5. While firmly gripping the nut, use a torque
wrench to tighten the flare nut according to
the torque values in table 7.5.

 Page 21 

NOTE: Use both a spanner and a torque wrench

when connecting or disconnecting pipes to/from
the unit.

• Ensure to wrap insulation around the piping.

Refrigerant Piping

Connection

Direct contact with the bare piping may result
in burns or frostbite.

CAUTION

Fig. 7.10

NOTE: DO NOT intertwine signal cable with

other wires. While bundling these items
together, do not intertwine or cross the signal
cable with any other wiring.

7. Thread this pipeline through the wall and
connect it to the outdoor unit.

8. Insulate all the piping, including the valves
of the outdoor unit.

9. Open the stop valves of the outdoor unit
to start the flow of the refrigerant
between the indoor and outdoor unit.

CAUTION

Check to make sure there is no refrigerant leak
after completing the installation work. If there is
a refrigerant leak, ventilate the area immediately
and evacuate the system (refer to the Air
Evacuation section of this manual).

• Make sure the pipe is properly connected.

Over tightening may damage the bell mouth
and under tightening may lead to leakage.

NOTE ON MINIMUM BEND RADIUS

Carefully bend the tubing in the middle according
to the diagram below. DO NOT bend the tubing
more than 90° or more than 3 times.

Bend the pipe with thumb

min-radius 3.9” (10cm)

Fig. 7.11

6. After connecting the copper pipes to the
indoor unit, wrap the power cable, signal
cable and the piping together with binding
tape.

 Page 22 

Wiring

8

Safety Precautions

WARNING

•

Disconnect the power supply before
working on the unit.

• All wiring must be performed according to

local and national regulations.

• Wiring must be done by a qualied

technician. Improper connections may
cause electrical malfunction, injury, or re.

• An independent circuit and single outlet

must be used for this unit.

DO NOT plug another appliance or

charger into the same outlet. If the cannot
handle the load or there is a defect in the
wiring, it can lead to shock, re, and unit
and property damage.

• Connect the power cable to the terminals

and fasten it with a clamp. An insecure
connection may cause fire.

• Make sure that all wiring is done correctly

and the control board cover is properly
installed. Failure to do so can cause
overheating at the connection points, fire,
and electrical shock.

•

Ensure that main power supply connection
is made through a switch that disconnects
all poles, with contact gap of at least 3mm
(0.118”).

• DO NOT modify the length of the power

cord or use an extension cord.

To prevent distortion when the compressor starts
(you can nd the unit’s power information on
the rating sticker):

• The unit must be connected to the main
outlet. Normally, the power supply must
have a impedance of 32 ohms.

• No other equipment should be connected
to the same power circuit.

TAKE NOTE OF FUSE SPECIFICATIONS

The air conditioner’s printed circuit board (PCB)
is designed with a fuse that provides overcurrent
protection. The specications of the fuse are
printed on the circuit board, examples of such
are T5A/250VAC and T10A/250VAC.

Outdoor Unit Wiring

WARNING

Before performing any electrical or wiring work,
turn o the main power to the system.

1. Prepare the cable for connection
a. You must first choose the right cable size.

Be sure to use H07RN-F cables.

Table 8.1: Minimum Cross-Sectional Area

of Power and Signal Cables in North
America

Wiring

CAUTION

• Connect the outdoor wires before
connecting the indoor wires.

• Make sure you ground the unit. The
grounding wire should be located away
from gas pipes, water pipes, lightning rods,
telephone wires or other grounding wires.
Improper grounding may cause electrical
shock.

• DO NOT connect the unit to the power

source until all wiring and piping is
completed.

Make sure that you do not cross your

•

electrical wiring with your signal wiring.
This may cause distortion and interference.

Rated Current of

Appliance (A)

≤ 7 18

7 - 13 16
13 - 18 14
18 - 25 12
25 - 30 10

AWG

 Page 23 

Table 8.2: Other World Regions

Rated Current of

Appliance (A)

≤ 6 0.75

Nominal Cross-Sectional

Area (mm²)

6 - 10 1
10 - 16 1.5

16 - 25 2.5

25- 32 4

32 - 45 6

b. Using wire strippers, strip the rubber jacket

from both ends of the signal cable to reveal
approximately 5.9”(15cm) of wire.

c.

Strip the insulation from the ends.

d. Using a wire crimper, crimp u-lugs on the

ends.

NOTE: When connecting the wires, strictly

follow the wiring diagram found inside the
electrical box cover.

2. Remove the electric cover of the outdoor unit.
If there is no cover on the outdoor unit, take
o the bolts from the maintenance board and
remove the protection board.
(See Fig. 8.1, 8.2)

Indoor Unit Wiring

1. Prepare the cable for connection
a. Using wire strippers, strip the rubber jacket

from both ends of the signal cable to reveal
about 5.9”(15cm) of the wire.

b. Strip the insulation from the ends of the

wires.

c. Using a wire crimper, crimp the u-lugs to

the ends of the wires.

2. Remove the cover of the electric control box
on your indoor unit.

3. Connect the u-lugs to the terminals.
Match the wire colors/labels with the labels

on the terminal block, Firmly screw the u-lug
of each wire to its corresponding terminal.
Refer to the Serial Number and Wiring
Diagram located on the cover of the electric
control box.

Control box

Wiring

Cover

Screw

Fig. 8.1

Protection Board

Fig. 8.2

3. Connect the u-lugs to the terminals
Match the wire colors/labels with the labels
on the terminal block, Firmly screw the u-lug
of each wire to its corresponding terminal.

4. Clamp down the cable with the cable clamp.

5.

Insulate unused wires with electrical tape.
Keep them away from any electrical or metal
parts.

6. Reinstall the cover of the electric control box.

Wiring diagram

Magnetic ring

Connective wiring diagram

Fig. 8.3

(if supplied and packed with the accessories)

1 2 3

Pass the belt through
the hole of the Magnetic

ring to fix it on the cable

Fig. 8.4

 Page 24 

CAUTION

• While connecting the wires, please strictly

follow the wiring diagram.

• The refrigerant circuit can become very

hot. Keep the interconnection cable away
from the copper tube.

- Press “CONFIRM”. The air conditioning
unit will then start the fan for airow
automatic adjustment.

4. Clamp down the cable with the cable clamp.
The cable must not be loose or pull on the
u-lugs.

5. Reattach the electric box cover.

Using the wire controller to set external
static pressure (some models)

You can use the unit’s automatic airow

•

adjustment function to set external static
pressure.

•

Automatic airow adjustment is the volume
of blow-o air that has been automatically
adjusted to the quantity rated.

1. Make sure the test run is done with a dry
coil. If the coil is not dry, run the unit for 2
hours in FAN ONLY mode to dry the coil.

2. Check that both power supply wiring and
duct installation have been completed
Check that any closing dampers are open.
Check that the air lter is properly attached
to the air suction side passage of the unit.

3. If there is more than one air inlet and outlet,
adjust the dampers so that the airow rate
of each air inlet and outlet conforms with
the designed airow rate. Make sure the
unit is in FAN ONLY mode. Press and set
the airow adjustment button on the
remote control to change the airow rate
from H or L.

ON will ash during when the
fan is on during automatic
airow adjustment.

CAUTION

• DO NOT adjust the dampers when

automatic airow adjustment is active.

After 3 to 6 minutes, the air conditioning
unit stops operating once automatic airow
adjustment has nished.

CAUTION

• If there is no change after airow

adjustment in the ventilation paths, be sure
to reset automatic airow adjustment.

• If there is no change to ventilation paths

after airow adjustment,contact your dealer,
especially if this occurs after testing the
outdoor unit or if the unit has been moved
to a dierent location.

• Do not use automatic airow adjustment

with remote control,if you are using booster
fans, outdoor air processing unit, or a HRV
via duct.

• If the ventilation paths have been changed,

reset airow automatic adjustment as
described from step 3 onwards.

Wiring

4. Set the parameters for automatic airow
adjustment. When the air conditioning unit
is o, perform the follwoing steps:

- Press“COPY”.

- Press “+” or “-” to select the AF.

 Page 25 

Power Specifications

NOTE: Electric auxiliary heating type circuit breaker/fuse need to add more than 10 A.

Indoor Power Supply Specifications

Wiring

MODEL

(Btu/h)

≤18K 19K~24K 25K~36K 37K~48K 49K~60K

PHASE 1 Phase 1 Phase 1 Phase 1 Phase 1 Phase

POWER

CIRCUIT BREAKER/

FREQUENCY

AND VOLT

FUSE(A)

MODEL

(Btu/h)

208-240V 208-240V 208-240V 208-240V 208-240V

25/20 32/25 50/40 70/55 70/60

≤36K 37K~60K ≤36K 37K~60K

PHASE 3 Phase 3 Phase 3 Phase 3 Phase

POWER

FREQUENCY

AND VOLT

380-420V 380-420V 208-240V 208-240V

CIRCUIT BREAKER/FUSE(A) 25/20 32/25 32/25 45/35

Outdoor Power Supply Specifications

MODEL

(Btu/h)

≤18K 19K~24K 25K~36K 37K~48K 49K~60K

PHASE 1 Phase 1 Phase 1 Phase 1 Phase 1 Phase

POWER

CIRCUIT BREAKER/

FREQUENCY

AND VOLT

FUSE(A)

208-240V 208-240V 208-240V 208-240V 208-240V

25/20 32/25 50/40 70/55 70/60

MODEL

(Btu/h)

≤36K 37K~60K ≤36K 37K~60K

PHASE 3 Phase 3 Phase 3 Phase 3 Phase

POWER

FREQUENCY

AND VOLT

380-420V 380-420V 208-240V 208-240V

CIRCUIT BREAKER/FUSE(A) 25/20 32/25 32/25 45/35

Independent Power Supply Specifications

MODEL

POWER

(indoor)

(Btu/h)

PHASE 1 Phase 1 Phase 1 Phase 1 Phase 1 Phase

FREQUENCY

AND VOLT

CIRCUIT BREAKER/

FUSE(A)

POWER

(outdoor)

PHASE 1 Phase 1 Phase 1 Phase 1 Phase 1 Phase

FREQUENCY

AND VOLT

CIRCUIT BREAKER/

FUSE(A)

≤18K 19K~24K 25K~36K 37K~48K 49K~60K

208-240V 208-240V 208-240V208-240V 208-240V

15/10 15/10 15/10 15/10 15/10

208-240V 208-240V 208-240V

25/20 32/25 50/40 70/55 70/60

208-240V

208-240V

 Page 26 

MODEL

(Btu/h)

≤36K 37K~60K ≤36K 37K~60K

POWER

(indoor)

PHASE 1 Phase 1 Phase 1 Phase 1 Phase

FREQUENCY

AND VOLT

208-240V 208-240V 208-240V 208-240V

CIRCUIT BREAKER/FUSE(A) 15/10 15/10 15/10 15/10

POWER

(outdoor)

PHASE 3 Phase 3 Phase 3 Phase 3 Phase

FREQUENCY

AND VOLT

380-420V 380-420V 208-240V 208-240V

CIRCUIT BREAKER/FUSE(A) 25/20 32/25 32/25 45/35

208-240V

208-240V

MODEL

POWER

(indoor)

(Btu/h)

PHASE 1 Phase 1 Phase 1 Phase 1 Phase 1 Phase

FREQUENCY

AND VOLT

CIRCUIT BREAKER/

FUSE(A)

POWER

(outdoor)

PHASE 1 Phase 1 Phase 1 Phase 1 Phase 1 Phase

FREQUENCY

AND VOLT

CIRCUIT BREAKER/

FUSE(A)

Inverter Type A/C Power Specifications

≤18K 19K~24K 25K~36K 37K~48K 49K~60K

220-240V 220-240V 220-240V220-240V 220-240V

15/10 15/10 15/10 15/10 15/10

208-240V 208-240V 208-240V

25/20 25/20 40/30 50/40 50/40

MODEL

POWER
(indoor)

(Btu/h)

≤36K 37K~60K ≤36K 37K~60K

PHASE 1 Phase 1 Phase 1 Phase 1 Phase

FREQUENCY

AND VOLT

220-240V 220-240V 220-240V 220-240V

CIRCUIT BREAKER/FUSE(A) 15/10 15/10 15/10 15/10

POWER

(outdoor)

PHASE 3 Phase 3 Phase 3 Phase 3 Phase

FREQUENCY

AND VOLT

380-420V 380-420V 208-240V 208-240V

CIRCUIT BREAKER/FUSE(A) 25/20 32/25 32/25 40/30

Wiring

 Page 27 

Air Evacuation

V

Safety Precautions

CAUTION

• Use a vacuum pump with a gauge reading

lower than -0.1MPa and an air discharge
capacity above 40L/min.

• The outdoor unit does not need to be

vacuumed. DO NOT open the outdoor

unit’s gas and liquid stop valves.

•

Ensure that the Compound Meter reads

-0.1MPa or below after 2 hours. If after
three hours the gauge reading is still above

-0.1MPa, check if there is a gas leak or
water inside the pipe. If there is no leak,
perform another evacuation for 1 or 2 hours.

• DO NOT use refrigerant gas to evacuate the

system.

9

4.

Turn on the vacuum pump to evacuate the

system.

Run the vacuum for at least 15 minutes, or

5.
until the Compound Meter reads -76cmHG
(-1x105Pa).

Close the manifold gauge’s Low Pressure

6.
valve and turn o the vacuum pump.
Wait for 5 minutes, then check that there has

7.
been no change in system pressure.

NOTE: If there is no change in system pressure,

unscrew the cap from the packed valve (high
pressure valve). If there is a change in system
pressure, there may be a gas leak.

Insert hexagonal wrench into the packed valve

8.

(high pressure valve) and open the valve by
turning the wrench 1/4 counterclockwise.
Listen for gas to exit the system, then close the
valve after 5 seconds.

Evacuation Instructions

Before using a manifold gauge and a vacuum
pump, read their operation manuals to make
sure you know how to use them properly.

Air Evacuation

Compound gauge

-76cmHg

Low pressure valve

Charge hose

Manifold Gauge

Pressure gauge

High pressure valve

Charge hose

Vacuum pump

Low pressure valve

Fig. 9.1

1. Connect the manifold gauge’s charge hose
to the service port on the outdoor unit’s low
pressure valve.

2. Connect the manifold gauge’s charge hose
from the to the vacuum pump.

3. Open the Low Pressure side of the manifold
gauge. Keep the High Pressure side closed.

Flare nut

Cap

alve body

Valve stem

Fig. 9.2

9. Watch the Pressure Gauge for one minute to
make sure that there is no change in pressure. It
should read slightly higher than the atmospheric
pressure.

10.Remove the charge hose from the service port.

11.Using hexagonal wrench, fully open both the
high pressure and low pressure valves.

OPEN VALVE STEMS GENTLY

When opening the valve stems, turn the hexagonal

wrench until it hits against the stopper. DO NOT

try to force the valve to open further.

12. Tighten valve caps by hand, then tighten it
using the proper tool.

 Page 28 

Note On Adding Refrigerant

CAUTION

• Refrigerant charging must be performed after wiring, vacuuming, and the leak testing.

• DO NOT exceed the maximum allowable quantity of refrigerant or overcharge the system.

Doing so can damage the unit or impact it’s functioning.

• Charging with unsuitable substances may cause explosions or accidents. Ensure that the
appropriate refrigerant is used.

• Refrigerant containers must be opened slowly. Always use protective gear when charging the

system.

• DO NOT mix refrigerants types.

Some systems require additional charging depending on pipe lengths. The standard pipe length
varies according to local regulations. For example, in North America, the standard pipe length is

7.5m (25’) In other areas, the standard pipe length is 5m (16‘). The additional refrigerant to be
charged can be calculated using the following formula:

Liquid Side Diameter

φ6.35(1/4”) φ9.52(3/8”) φ12.7(1/2”)

R22
(orifice tube in the indoor unit):

R22
(orifice tube in the outdoor unit):

R410A:
(orifice tube in the indoor unit):

R410A:
(orifice tube in the outdoor unit):

(Total pipe length ­standard pipe length)x
30g (0.32oZ)/m(ft)

(Total pipe length ­standard pipe length)
x15g(0.16oZ)/m(ft)

(Total pipe length ­standard pipe length)
x30g(0.32oZ)/m(ft)

(Total pipe length ­standard pipe length)
x15g(0.16oZ)/m(ft)

(Total pipe length ­standard pipe length)x
65g(0.69oZ)/m(ft)

(Total pipe length ­standard pipe length)
x30(0.32oZ)/m(ft)

(Total pipe length ­standard pipe length)
x65g(0.69oZ)/m(ft)

(Total pipe length ­standard pipe length)
x30g(0.32oZ)/m(ft)

(Total pipe length ­standard pipe length)x
115g(1.23oZ)/m(ft)

(Total pipe length -
standard pipe length)
x60g(0.64oZ)/m(ft)

(Total pipe length ­standard pipe length)
x115g(1.23oZ)/m(ft)

Air Evacuation

(Total pipe length -
standard pipe length)
x65g(0.69oZ)/m(ft)

 Page 29 

Test Run

10

Before Test Run

A test run must be performed after the entire
system has been completely installed. Confirm
the following points before performing the test:

a) Indoor and outdoor units are properly

installed.

b) Piping and wiring are properly connected.
c) No obstacles near the inlet and outlet of

the unit that might cause poor performance
or product malfunction.

d) Refrigeration system does not leak.
e) Drainage system is unimpeded and

draining to a safe location.

f) Heating insulation is properly installed.
g) Grounding wires are properly connected.
h) Length of the piping and additional

refrigerant stow capacity have been
recorded.

i) Power voltage is the correct voltage for the

air conditioner.

CAUTION

Failure to perform the test run may result in unit
damage, property damage or personal injury.

Test Run Instructions

1. Open both the liquid and gas stop valves.

2. Turn on the main power switch and allow the
unit to warm up.

3. Set the air conditioner to COOL mode.

Test Run

4. For the Indoor Unit
a. Ensure the remote control and its buttons

work properly.

b. Ensure the louvers move properly and can

be changed using the remote control.

c. Double check to see if the room

temperature is registered correctly.

d. Ensure the indicators on the remote

control and the display panel on the indoor
unit work properly.

e. Ensure the manual buttons on the indoor

unit works properly.

f. Check to see that the drainage system is

unimpeded and draining smoothly.

g. Ensure there is no vibration or abnormal

noise during operation.

5. For the Outdoor Unit
a. Check to see if the refrigeration system is

leaking.

b. Make sure there is no vibration or

abnormal noise during operation.

c. Ensure the wind, noise, and water

generated by the unit do not disturb your
neighbors or pose a safety hazard.

6. Drainage Test
a. Ensure the drainpipe flows smoothly. New

buildings should perform this test before
finishing the ceiling.

b. Remove the test cover. Add 2,000ml of

water to the tank through the attached
tube.

c. Turn on the main power switch and run

the air conditioner in COOL mode.

d. Listen to the sound of the drain pump to

see if it makes any unusual noises.

e. Check to see that the water is discharged.

It may take up to one minute before the
unit begins to drain depending on the
drainpipe.

f. Make sure that there are no leaks in any of

the piping.

g. Stop the air conditioner. Turn o the main

power switch and reinstall the test cover.

NOTE: If the unit malfunctions or does not

operate according to your expectations, please
refer to the Troubleshooting section of the
Owner’s Manual before calling customer service.

 Page 30 