SAMSUNG ASH180UE0K Service Manual

ROOM AIR CONDITIONER

ASH180UE/ASH181UE
ASH-2417ER
ASH-1808DR

SERVICE

Manual

CONTENTSAIR CONDITIONER

1 . P re c a u t i o n s

2 . P roduct Specifications

3. Operating Instructions and
I n s t a l l a t i o n

4 . Disassembly and Reassembly

5. Tro u b l e s h o o t i n g

6 . Exploded Views and Parts List

7 . Block Diagrams

8 . PCB Diagrams

9 . Wiring Diagrams

1 0 . Schematic Diagrams

© Samsung Electronics Co., Ltd. APR. 1998.

Printed in Korea.
Code No. DB81-10154A

1. Precautions

1) Remove power cable from power outlet.
Remove power cable from an outlet prior to disassembly for
repair.
When the power cable is removed wait for at least 1 minute
and measure the voltage between the + and - terminal of the
large capacity electrolyti capacitor using a tester. Make sure
that the voltage is less than DC 10V, then starts repairing.

2) Warning about electrical shock
If you cannot avoid checking the circuits with power not dis­connected pay special attention not to touch live parts to
avoid electric shock.

3) Use proper parts
Use genuine parts of a model if parts need to be replaced. (It
is recommended that parts are replaced rather than repaired,
to avoid electrical contact. Customers should refrain from
repairing parts themselves as this can be extremely danger­ous.)

4) Use proper tools
Use proper tools for repair and be familiarized with handling
test equipment.
Using worn out tools may result in problems such as intermit­tent contact, etc

5) Lead wire or power cable damaged
Check if lead wire or power cord is damaged prior to repair,
and replace if damaged.

6) Avoid tapping a power cord
Tapping a power cable or using an extension cord from a
power outlet is dangerous and should be avoided. It may
result is malfunctioning or fire.

dangerous

No
inter connection

7) Checking insulation
Be sure to check insulation resistance when assembly is com­pleted. (Check insulation resistance between the power cord
plug and ground terminal using an ohm meter and check if it
is greater than 30MΩ prior to applying the power.)

8) Check grounding
Check grounding status and fix it if not sufficient.

9) Check installation condition
Check installation condition and fix insufficient conditions.
If it is still not satisfactory find another area for installation.

10) Child care
It is recommended to have children stay away the units when
the repair is being done to avoid accidents.

Cleaning

Clean the unit and the area arount it.
Let the customer know that the unit has been repaired.

Brilliantly

Samsung Electronics

1-1

M E M O

1-2

Samsung Electronics

2. Product Specifications

2-1 Table

Model ASH180UE/181UE ASH-2417ER ASH-1808DR

Item Indoor unit Outdoor unit Indoor unit Outdoor unit Indoor unit Outdoor unit

Type - Wall-mounting Wall-mounting Wall-mounting
Cooling BTU/h 17,500 21,500 18,000
Dehumiditying 3.4 5.9 3.4
Heating BTU/h 19,000 22,000 18,000

Perfor­mance

Power
Electri­cal
Chara­cteris­tics

Pro­duct

Low temp. heating BTU/h - - ­Air volume Cooling m3/min. 13.8 13.1 12.5

Heating m3/min. 14.1 13.6 13.0

Noise Cooling dB 44 55 46 57 45 57

Heating dB 44 55 46 57 45 57
Energy Cooling BTU/h.W 9.7 8.4 9.0
efficiency ratio Heating BTU/h.W 9.5 8.8 9.5
Power ø-V-Hz 1-220/240-50 1-220/240-50 1-200/220-50
Power Cooling W 1,800 2,500 2,000
consumption Heating W 2,000 2,500 1,900
Operating current Cooling A 8.0 12.0 9.5

Heating A 9.0 12.0 9.0
Power factor Cooling % 93.8(at240V) 86.8(at240V) 95.7(at220V)

Heating % 92.6(at240V) 86.8(at240V) 96.0(at220V)
Starting current A 40 72 62
Power cable Length m 6.2 6.2 6.2

Number of core wire 3Gx2.5mm2/Area 3Gx2.5mm2/Area 3Gx2.5mm2/Area
Fuse capacity A 3.15 - 3.15 - 3.15 ­Outer Width x Height mm
dimension x Depth inch

Weight kg 13 46 13 59 13 59

Coolant pipe Liquid OD(mm) ø6.35x5 ø6.35x5 ø6.35x5

Coolant x L(m) ø12.7x5 ø15.88x5 ø12.7x5
Drain hose
Compressor Type - Rotary -

Motor Type - - - P.S.C - P.S.C

Rated input W - - - 2,620 2,170
Blower Type Cross-fan Propeller Cross-fan Propeller Cross-fan Propeller

Motor Type Resin Steel Resin Steel Resin Steel

Rated input W 30 60 30 60 30 60

Heat exchanger
Coolant control unit ­Freezer oil capacity cc - 410 - 1,180 - 1,180
Coolant to charge(R-22) g 1,300 1,750 1,670
Cooling test condition INDOOR UNIT : DB 27˚C WB 19˚C 27˚C ,19.5˚C

Heating test condition INDOOR UNIT : DB 20˚C
Maximum operation condition INDOOR UNIT : DB 32˚C,WB 23˚C 29˚C, 19˚C 32˚C, 22.5˚C

ID(mm) x L(mm)

OUTDOOR UNIT : DB 35˚C WB 24˚C 35˚C,24˚C
OUTDOOR UNIT : DB 7˚C WB 6˚C
OUTDOOR UNIT : DB 43˚C,WB 26˚C 54˚C, 24˚C 43˚C, 25.5˚C

1 , 0 5 0 x 2 9 8 x 1 8 0 7 8 7 x 6 2 0 x 3 2 0 1 , 0 5 0 x 2 9 8 x 1 8 0 7 8 7 x 6 2 0 x 3 2 0 1 , 0 5 0 x 2 9 8 x 1 8 0 7 8 7 x 6 2 0 x 3 2 0
4 1 . 3 4 x 1 1 . 7 3 x 7 . 0 9 3 0 . 9 8 x 2 4 . 4 x 1 2 . 6 4 1 . 3 4 x 1 1 . 7 3 x 7 . 0 9 3 0 . 9 8 x 2 4 . 4 x 1 2 . 6 4 1 . 3 4 x 1 1 . 7 3 x 7 . 0 9 3 0 . 9 8 x 2 4 . 4 x 1 2 . 6

ø17x2000 ø17x2000 ø17x2000

R e c i p ro c a t i n g

2Row 12Step 2Row 24Step 2Row 12Step 2Row 24Step 2Row 12Step 2Row 24Step

Capillary-tube

-

Capillary-tube - Capillary-tube

-

R e c i p ro c a t i n g

Samsung Electronics

2-1

2-2 Dimensions

2-2-1 Indoor Unit

Air
in

Air
out

(Front view)

(Rear view)

1050

250

180

260

unit : mm

(Remote control)

63 21

Installation plate

outer edge of
indoor unit

145

200

2-2-2 Outdoor Unit

2-2

(Front view) (Rear view)

582
787

340

Samsung Electronics

3. Operating Instructions and Installation

3-1 Operating Instructions

3-1-1 Name & Function of Key in remote controller

NO

1
2

3

4

5

6

7

NAMED OF KEY

ON/OFF

MODE

TURBO

MILD

Q. TIMER

FAN SPEED

SWING

SET

AUTO

FUNCTION OF KEY
Use this button to start and stop air conditioner.
Each time you press this button,

MODE is changed in the following order.
"AUTO" "COOL" "DRY" "FAN" "HEAT"

Use this button to provide heavy duty cooling (heating)
for 30 minutes.

Use this button to provide pleasant cooling (heating)
for 3 hours.

Set up the reserve or cancel the timer on and timer off quickly.

Each time you press this button,
FAN SPEED is changed in the following order.
"AUTO" " (L)" " (ME)" " (HI)" NATURAL

Adjusts air flow vertically.
Each time you press this button,
BLADE-H rotates by 8° (Changable range 50°).

Each time you press this button,
BLADE-H rotates within 35° and stop.

ONE SHOT KEY
ONE SHOT KEY

OR

CONTINUOUS KEY

ONE SHOT KEY

ONE SHOT KEY

ONE SHOT KEY

OR

CONTINUOUS KEY

ONE SHOT KEY

OR

CONTINUOUS KEY

ONE SHOT KEY

OR

CONTINUOUS KEY

ONE SHOT KEY

10

11

12

13

8

9

TIME

TIMER/CANCEL

ON

TIMER

OFF

(UP)

TIME

(DOWN)

(UP)

TEMP

(DOWN)

SLEEP

Without regard to ON/OFF condition in remote controller,
use this button to set current time.
Adjust the current time using TIME button.
(Data can be transmitted after setting up the time)

Use this button to reserve or cancel the timer on and timer off.
Set up the time that operation start.
Set up the time that operation stop.
If the TIME button is pressed once, the time increase by one

minute during the time set mode, and ten minutes during the
timer set mode.

If the TIME button is pressed once, the time decrease by one
minute during the time set mode, and ten minutes during the
timer set mode.

If the button is pressed once,
the setting temperature is increased by 1°C.

If the button is pressed once,

the setting temperature is decreased by 1°C.

Use this button for sleep operation.
(The SLEEP mode can be selected at COOL and HEAT mode.)

ONE SHOT KEY

ONE SHOT KEY
ONE SHOT KEY

ONE SHOT KEY

OR

CONTINUOUS KEY

ONE SHOT KEY

OR

CONTINUOUS KEY

ONE SHOT KEY

OR

CONTINUOUS KEY

ONE SHOT KEY

Samsung Electronics

3-1

3-1-2 Main controller function.

Operating Instructions and Installation

1. A U TO MODE: In this mode, operation
mode (COOL, HEAT) is selected automati­cally by the room temperature of initial
o p e r a t i o n .

Room Temp

Tr≥21°C+∆T

21°C +∆T>Tr

∆T= -1°, -2°C, 0°C, +1°C, +2°C
∆T is controlled by setting temperature

up/down key of remote contro l l e r

2. C O O L MODE: The unit operates accord i n g
to the diff e rence between the setting and
room temperature .
The setting temperature range is
1 8 ° C t h rough 30°C.

3. H E AT MODE: The unit operates accord i n g
to the diff e rence between the setting and
room temperature .
The setting temperature range is 16°C
t h rough 30°C.
* P revention against cold wind : For about
3~5 minutes after initial operation, thermo
c o n t rol or °∞de-ice°±, the indoor fan will
either not operate or operate very slowly
(650 rpm), then switch to the selected fan
speed. This period is to allow the indoor
unit's heat-exchanger to prewarm before
emitting warm air.
* P rotective function : High temperature
re l e a s e .
*De-ice: Deicing operation is controlled by
indoor unit's heat exchanger temperature
and room temperature and accumulating
time of compressor's operation.

4. D RY MODE: The unit is operated at com­p ressor on state re g a rdless of room temper­a t u re for an initial 30 minutes of dehumidi­fication operation, and the indoor fan motor
is automatically operated due to the temper­a t u re diff e rence between the room tempera­t u re and set temperature .
The compressor is automatically contro l l e d
due to the temperature diff e rence between
room temperature and set temperature after
operation of 30 minutes.
*Set Te m p e r a t u re : 23°C
* P rotective function: Low temperature
release. (Prevention against fre e z e )

Cool Operation (Set Temp:24°C+∆T)
Heat Operation (Set Temp : 22°C+∆T)

Operation Type

5. TURBO MODE: This mode is available only
in A U TO, COOL, HEAT mode.
When this button is pressed at first, the air
conditioner is operated "powerful" state for
30 minutes re g a rdless of the set tempera­t u re, room temperature .
When this button is pressed again, or when
the operating time is 30 minutes, turbo
operation mode is canceled and returned to
the previous mode.

6 . MILD MODE: This mode is available only

in A U TO, COOL, HEAT mode.
When this button is pressed at first, the air
conditioner is operated in its current state
for 3 hours.
When this button is pressed again or when
the operating time is 3 hours, mild opera­tion mode is canceled and returned to the
p revious mode.

7 . S L E E P MODE: Sleep mode is available only

in COOL or HEAT mode.
The operation will stop after 6 hours.
*In COOL mode : The setting temperature
is automatically raised by 1°C each 1hour
When the temperature has been raised by
total of 2°C, that temperature is main­t a i n e d .
*In HEAT mode : The setting temperature
is automatically droped by 1°C each 1hour.
When the temperature has been droped by
total of 2°C, that temperature is main­t a i n e d .

8. DE-ICE Operation: De-ice operation is con­t rolled by sensing the indoor unit's heat­exchanger temperature and timer.
De-ice ends by sensing of the pro c e s s i n g
time by de-ice condition.

9. FAN SPEED: Manual (3 step), Auto (4 step),
N a t u r a l
Fan speed automatically varies depending
on both the diff e rence between setting and
the room temperature .

1 0 . C O M P U L S O RY O P E R ATION:

For operating the air conditioner without
the remote contro l l e r.
The operating is the same function that
A U TO MODE in the remote contro l l e r.

3-2

Samsung Electronics

Operating Instructions and Installation

11 . SWING: BLADE-H is rotated vertically by

the stepping motor.
*Memory louve: When ON/OFF button is
p ressed at stop state, the BLADE-H re t u r n s
to its original location which is operating
state before stop
*Swing auto: The BLADE-H can ro t a t e
within about 35° in the original position set
by the SWING SET button.
*Swing set: Press the SWING SET button,
then the blade rotates vertically by 8°
The BLADE-H location is dispalyed on
REMOTE CONTROL. (total 7 steps)

1 2 . Q.TIMER: Q. timer (quick timer) allows

reservation or cancel the timer on and timer
o ff quickly
When Q.timer button is pressed at operat­ing state, LCD displays the polling state
s e q u e n t i a l l y.
The LCD also displays the time re m a i n i n g .

1 3 . TIMER: The air conditioner is turned

ON/OFF at a specified time using TIMER
O N / O F F.
* Timer LED lights on.

1 4 . SELF TEST

* I n t e r ruption of electric power and Power
o n .
*Abnormal condition of the room sensor.
*Indoor unit fan motor lock.
*Abnormal condition of the indoor unit's
heat exchanger sensor.

1 5 . TIME SHORTENING: If the "Time short"

connector pin is shorted on the main P. C. B,
the compressor's three minutes delay func­tion is cancelled, and each operation time is
shortened to one fiftieth of its original time.

1 6 . BUZZER SOUND: Whenever the ON/OFF

button is pressed or whenever change
occurs to the condition which is set up or
select, the compulsory operation mode,
buzzer is sounded "beep"

Samsung Electronics

3-3

3-2 Installation

3-2-1 Selecting Area for Installation

Select an area for installation that is suitable
to the customer's needs.

3-2-1(a) Indoor Unit

1 . Make sure that you install the indoor unit in

an area providing good ventilation. It must
not be blocked by an obstacle affecting the
airflow near the air inlet and the air outlet.

2 . Make sure that you install the indoor unit in

an area allowing good air handling and
endurance of vibration of the indoor unit.

3. Make sure that you install the indoor unit in
an area where there is no source of heat or
vapor nearby.

4 . Make sure that you install the indoor unit in

an area from which hot or cool air is spre a d
evenly in a ro o m .

5 . Make sure that you install the indoor unit in

an area away from TVs, audio units, cord­less phones, fluorescent lighting fixture s
and other electrical appliances (at least 1
m e t e r ) .

6 . Make sure that you install the indoor unit in

an area which provides easy pipe connec­tion with the outdoor unit, and easy
drainage for condensed water.

7. Make sure that you install the indoor unit in
an area which is large enough to accomo­date the measurements shown in figure on
the next page.

3 . Make sure that you install the outdoor unit

in area providing good ventilation and
which is not dusty. It must not be blocked
by any obstacle affecting the airflow near
the air inlet and the air outlet.

4 . Make sure that you install the outdoor unit

in area free from animals or plants.

5 . Make sure that you install the outdoor unit

in area not blocking the traff i c .

6. Make sure that you install the outdoor unit
in area easy to drain condensed water fro m
the indoor unit.

7. Make sure that you install the outdoor unit
in area which provides easy connection
within the maximum allowable length of a
coolant pipe (10 meters).

Note

1. Add “A” grams of refrigerant (R-22) for

every 1 meter if the pipe length exceeds
t he standard pipe length of 5 meters.

MODEL
ASH180UE
ASH181UE

ASH2417ER

ASH1808DR

2. Maintain a height between the indoor and
outdoor units of less than 3 meters.

8 . Make sure that you install the outdoor unit

in an area which is large enough to accom­modate the measurements

shown in figure on the next page.

“A”
10g

40g

3-2-1(b) Outdoor Unit

1 . Make sure that you install the outdoor unit

in area not exposed to the rain or direct sun
l i g h t .

(Install a separate sunblind if exposed to

d i rect sun light.)

2 . Make sure that you install the outdoor unit

in area allowing good air moment, not
amplifying noise or vibration, especially to
avoid disturbing neighbours.

(Fix the unit firmly if it is mounted in a

high place.)

Caution :

It is harmful to the air conditioner if it is used in the following environments: greasy areas (including areas near machines),
salty areas such as coast areas, areas where sulfuric gas is present such as hot spring areas. Contact your dealer for advice.

3-4

3-2-1(c) Remote Control Unit

1 . Make sure that you install the remote con-

t rol unit in an area free from obstacles such
as curtains etc, which may block signals
f rom the remote control unit.

2. Make sure that you install the remote con­t rol unit in an area not exposed to
d i rect sunlight, and where there is no sourc e
of heat.

3. Make sure that you install the remote con­t rol unit in an area away from TVs, audio
units, cordless phones, fluorescent lighting
f i x t u res and other electrical appliances (at

Samsung Electronics

3-2-2 Installation diagram of indoor unit and outdoor unit

GAS LEAK TEST Slope of drain hose * Piping may be laid to the rear, left, right or down.

Avoid up

Indoor unit check
points

slopes

Right

Left

Outdoor unit
check points

* Check for gas leak from the flare nut

connections with leak detector.

5 6

250mm

m i n i m u m

4

Rear

Down

Insulation of pipe connection area

* Perform gas leakage test first, and insulate the pipe

connection area.
Use an insulation tube for insulation as shown in figure.

The insulation
tube shall be
properly finished
not to allow
any gap.

Left rear

350mm or more

Vinyl tape
(purchase locally)

Remote control

Remote control holder

Hole dimension of bolts for the outdoor unit

Insulation
tube

Coolant adjustment pro c e d u re

C l a s s

C o n n e c t i o n

pipe lengh

At installation At installation

A i r- p u rg e

m e t h o d

C o o l a n t
a d j u s t m e n t
u n n e c e s s a ry

5m max

Refer to the

detailed

a i r- p u rg e

p ro c e d u re .

Add “A”g of
c o o l a n t

5 ~ 1 0 m

<R-22> for
e v e ry 1m.
(Refer to
the detailed
c o o l a n t
c h a rg e
p ro c e d u re . )

Samsung Electronics

Air purg e

m e t h o d

P u rge air
using
a vacuum
pump or an
a d d i t i o n a l
c o o l a n t
c y l i n d e r.

R e f r i g e r a n t
q u a n t i t y

See table
r i g h t .

Add “A”g of
c o o l a n t
<R-22> for
e v e ry 1m.
(Refer to
the detailed
c o o l a n t
c h a rg e
p ro c e d u re . )

10

ø12

Fix firmly if installed in an area affected by typhoons.

582

Coolant adjustment pro c e d u re

Outer diameter Fixing torque Final torque

ø6.35mm 160kg .cm 200kg .cm
ø12.7mm 500kg .cm 550kg .cm
ø15.8mm 700kg .cm 750kg .cm

Tighten the flare nut by hand first, and tighten firmly with a spanner

C o o l a n t - q u a n t i t y

M o d e l

A S H 1 8 0 U E
A S H 1 8 1 U E

Coolant quantity

R e m a r k

1 3 0 0 g Self refrigerant is included with shipment.

A S H - 2 4 1 7 E R 1 7 5 0 g Self refrigerant is included with shipment.
A S H - 1 8 0 8 D R 1 6 7 0 g Self refrigerant is included with shipment.

For more information refer to the Installation Manual.

3-5

3-2-2(a) Fixing the Installation Plate

CUTTING A HOLE

Operating Instructions and Installation

When the refrigerant piping are hooked up from the rear.

Installation plate

Pipe hole (ø65mm)

MOUNTING THE INSTALLATION PLATE

When the installation plate is directly mounted on the wall.

250mm 145mm

Pipe hole

(ø65mm)

260mm

Installation plate

Indoor unit

Weight

200mm 100mm

Determine the pipe hole position using the
paper pattern for installation and drill the pipe
hole (65mm inner diameter) so that it slants
slightly downward.

1. Install the installation plate horizontally on
structural members (studs, etc.) in the wall.

2. To mount the installation plate on a concrete
wall with anchor bolts, utilize the anchor bolt
holes as illustrated in the left figure.

250mm350mm

3. When the anchor bolts are already driven in the
wall, also utilize the anchor bolts holes to secure
the installation plate. (If an anchor bolt is too
long, adjust the projecting length to 20mm or
less.)

Mounting at the window frame.

Screw wood

3-2-2(b) Purging the Unit

1. Open the Grille and remove the
screw securing the cover.

2. Pass the assembly cable through
the rear of the indoor unit and
connect the assembly cable to ter­minals 1~5.
*Each wire is labelled with the
corresponding terminal number.

3. Assembly every parts by contrary
order to disassembly.

Wood pillar

1. When mounting installation plate at the win­dow frame. Use the paper patten for installation
of the wood pillar.

2. As the left Fig.
Fix the wood pillar at the wood frame and
install installation plate with screw tap.

3. Fix the wood pillar with enough strength to
bear the weight of the indoor unit.

Indoor
unit

Outdoor
unit

Screw

3-6

Samsung Electronics

Operating Instructions and Installation

3-2-2(c) Piping and drain hose installation

1 . Fix the drain hose right the refrigerant piping.

2. Be careful not to form a slack of the drain hose.

3. Do not allow the piping to jut out from the back of the indoor unit.

4. Insulate both of the refrigerant pipings so that dewing and troubles
may not happen.

5. Be careful in bending the pipes. The bending radius must be
100mm or larg e r.

Piping

Tape

Drain hose

Assembly cable

A.Right-hand connection with piping

1. Cut out the knock-out piece from the

rightside of the rear body with a knife,
etc. Smooth the cut edges.

1. Cut out the knock-out piece from the
leftside of the rear body with a knife,

etc. Smooth the cut edges.

2. Cut out the Holder-pipe slit part.

3. Support the above section to be bent
with your hand and bend the pipes
there.

A

C

3-2-2(d) Indoor unit installation

1. Pass the pipes

Hook
here

2. Move the indoor unit to the right and

left to make sure that the unit is
s e c u rely hooked on to the installation
p l a t e .

t h rough the
hole in the
wall and hook
the indoor
unit to the
i n s t a l l a t i o n
plate at the
upper and
lower hooks.

C.Under-side connection with pipingB.Left-hand connection with piping

1. Cut out the knock-out piece from the
underside of the rear body with a knife,
etc. Smooth the cut edges.

2. Cut out the Holder-pipe on its slit part.

Set the drain hose in the inner part of the
indoor unit and the assembly cable in lower part of it.
Wind tape round them.

Piping

Assembly cable

B

Installation plate

Drain hose

DRAINAGE

1. Run the drain hose sloped downward .

2. Do not install the drain hose as illustrated below.

Ditch

Do not form
a rise

3. Put water in the drain pan and make sure that the water is drained outdoor.

4. When connecting the extension drain hose, insulate the inside part of the
extension drain hose with shield.

Do not put the
drain hose end
into water

Do not wave
the hose

Keep a distance
at least 5cm
or more

Do not put the
drain hose end
in the ditch

3-2-2(e) Indoor unit installation

AUXILIARY POWER S/W INSTALLATION OF DRAIN LINEWIRING CONNECTION

A u x i l i a ry power S/W
should be installed
near indoor unit so
that each access is
p o s s i b l e .

distributind
board

Auxiliary

power S/W

Main/Outdoor unit power
c o rds are connected to
upper/lower term i n a l
of auxiliary power S/W.

Samsung Electronics

Indoor unit connector wire should be

connected to both indoor unit

connector and outdoor

unit terminal board
as shown in the
f i g u re below.

(POWER CABLE)

(ASSEMBLY CABLE)

EARTH WIRE

EARTH WIRE

In heating and deice operation,
condensed water may be generated.
Install drain line as following
p ro c e d u re .

1. Insert the drain plug into base hole

2. And then connect drain hose to drain plug.

Hole

Base

Drain plug

Drain Hose

3-7

3-2-2(f) Grounding

(The Parts for this work are optional.)

Operating Instructions and Installation

• A g rounding terminal can be found on
the outdoor unit as illustrated.

1 . When an existing grounding terminal is avilable.

( G rounding wire of ø1.6mm or larger<solid

w i re>or 2mm2or larger <standard wire > )

Terminal used exclusively
for grounding.

Grounding resistance ;
Less than 100 ohms
(existing grounding electrode)

2 . Use of a grounding electro d e .

• Specifications of grounding electro d e .

Steel coreCarbon plastic

PVC-Insulated(2mm2x3.5m), green Terminal, M4

No. JOB EXPLANATION PRECAUTIONS

1 Determine the • Suitable location • Avoid sandy or gravelly soil as its grounding

grounding position. a) Place that is always dank. resistance is high.

b) Hard soil rather than loose sandy soil. • The grounding wire for the telephone line cannot

be used for the grounding of the air conditioner.

• Unsuitable location • When the grounding electrode is to be installed
a) Where there are underground structures or under a place with heavy traffic, its wire must be

facilites such as gas pipes, water pipes, connected firmly with the utmost care.
telephone lines, underground cables, etc.

b) A place 2m or less from the lightning arrester

grounding electrode and its cable.

2 Drive the grounding a) Dig a hole to the size illustrated,

electrode into position. and drive in the grounding electrode.

b) Cover the top of the grounding

electrode with excavated soil.

3 Put the grounding a) If the grounding wire is too short, connect an • The grounding wire should be a green

wire in order. extention lead to it. Solder the joint and insulated wire of ø1.6mm or 2mm2or larger.

wrap it with tape. • The soldered joint should not be buried

b) Fasten the grounding wire with staples. underground.

4 Check the a) After grounding work, measure the grounding

workmanship, resistance with a grounding resistance tester.
and provide
corrective b) If the resistance is above a specified level,
measures if drive the grounding electrode in deeper
necessary. or increase the number of grounding

electrodes.

5 Connect the Secure the grounding wire to the

grounding grounding terminal of the air conditioner
wire to the air
conditioner.

3-8

Samsung Electronics

3-2-2(g) Flare modification

• Tools used

Tightening
knob

Clamp handle

Bar

Yoke

Cutting wheel

Roller

• Flare modification procedure

1) Cut the pipe using a pipe cutter.

Oblique Raughness Burr

3) Insert a flare nut into the pipe and modifty flare.

Cone

2) Remove burrs at the tip of the pipe cut.
Caution : Burrs not removed may result

in leakage of gas.

Pipe

Reamer

Point
down

Samsung Electronics

D

A

• Unproper flaring

Inclined Surface

damaged

Outer diameter A(mm)

ø6.35mm 1.3
ø12.7mm 2.0
ø15.8mm 2.2

Cracked Uneven

thickness

3-9

Operating Instructions and Installation

3-2-2(h) Air-Purge Procedure

• Use the coolant of the outdoor unit to purge air inside indoor unit and pipe.

1. Remove the caps from the 2-way valve (B)
and the 3-way valve(A).

3-way valve

2. Turn the 2-way valve cock approx. 45°∆
counterclockwise to open it.
Close it about 10 seconds later.

3. Check leakage of coolant not leaking.

Leaking

• Tighten pipe fixing area one more time
and go to ®Í if gas is not leaking.

not
leaking

• If gas continues to leak although the
pipe fixing area has been tightened
again, repair the leaking area,
discharge the coolant completely and
refill with the required amount of new
coolant.

4. Open the 2-way valve again.

5. Open the service valve cap of the 3-way
valve and press the needle valve to
discharge gas for 3 seconds and leave it
for about 1 minute.
Repeat the above procedure for 3 times
to purge air.

Valve body

2-way valve

Flare nut

Stopper

valve stem

Valve stem cap

Indoor unit

6. Open the 2-way valve and 3-way valve
completely

7. Close the cap of each valve.

•Valve cap tightening torque kg .cm
Model Liquid pipe side Gas pipe side

ASH180UE
ASH181UE

ASH-1808DR 160(ø6.35) 500(ø12.7)
ASH-2417ER 160(ø6.35) 700(ø15.8)

8. Check each valve for leakage.

3-10

160(ø6.35) 500(ø12.7)

D

Outdoor unit

Half union

C

Gas pipe sideLiquid pipe side

3way valve2way valve

AB

Samsung Electronics

Operating Instructions and Installation

3-2-2(i) Refrigerant Refill

• Fill the airconditioner with coolant, or refill when necessary during use.

1. Purge air(for new installation only).

2. Turn the 3-way valve clockwise to close,
connect the pressure gauge(low
pressure side) to the service valve, and
open the 3-way valve again.

3. Connect the tank to refill with Refrigerant

Compound
gauge

4. Set the unit to cool operation mode.

5. Check the pressure indicated by the

pressure gauge(low pressure side).
* Standard pressure is should be

4.0~5.0kg/cm2in a reqular,
high operation mode.

For mounting
other end of
hose when
not in use

Suspension
hook

High
pressure
gauge

Hand
wheel

Finger
tight
fittings

Connected to
high pressure
side

Charging
line

6. Open the coolant tank and fill with coolant

until the rated pressure is reached.
* It is recommended not to pour the

coolant in too quickely, but gradually

while operating a pressure valve.

7. Stop operation of the airconditioner.

8. Close the 3-way valve, disconnect the

pressure gauge, and open the 3-way
valve again.

9. Close the cap of each valve.

Outdoor Unit

2-way valve

3-way valve

Samsung Electronics

3-11