Samsung APH450PG User manual

SERVICE Manual

CONTENTSAIR CONDITIONER

1. Precautions

2.ProductSpecifications

3. OperatingInstructions and

Installation

4.Disassembly and Reassembly

5. Troubleshooting

6. Exploded Views andParts List

7. BlockDiagrams

8. PCBDiagrams

9. Wiring Diagrams

10. Schematic Diagrams

PACKAGED AIR CONDITIONER

APH450PG

Printed in Korea.

Code No. DB81-10147A(1)

1) Turn off the the power.

Be sure to turn off the power before attempting to repair the

unit such as the disassembly of the unit.

2) Be careful of electric shock

When checking the circuit with the power connected in

unavoidable circumstances, take special care not to touch the

live parts. There is a danger of electric shock.

3) Use of appropriate parts

Be sure to use the genuine parts of the relevant model when it

is necessary to replace parts. (Replace parts instead of repair-

ing with regard to the malfunctioning of electric contact areas.

Never attempt to modify the unit. It is extremely dangerous

for the consumer to attempt to repair the unit on his(her)

own.)

4) Use of proper tools

Use appropriate tools for repair, and use measuring equip-

ment after accurate calibration. Using worn tools may result

in problems, including poor contact and poor connection.

5) Avoid damage to electric wire or electric cord.

Check the electric cord or electric wire for any damage during

repair.

Be sure to replace it if damaged.

6) Avoid intermediate connection of the electric cord.

Never attempt to make an intermediate connection by cutting

the middle area of the electric cord or make a connection to

the power receptacle as it is very dangerous, causing problems

or fire.

7) Checking of insulation

Be sure to check the insulation resistance after completion of

the assembly work.

(Check whether the insulation resistance of the electric wire

and grounding terminal is over 30MΩby using the insulation

resistance tester, and then connect the power source.)

8) Checking of grounding

Check the grounding condition, and perform repair if poorly

grounded.

9) Checking of installation condition

Check the installation condition of the unit, and perform

repair if there is any defective area.

If the unit remains in an unstable installing condition, install it

at a new site.

10) Be careful of children

As the repair of the unit involves a lot of dangerous elements,

do not allow children to approach nearby during repair work.

Samsung Electronics 1-1

1. Precautions

Turn off the sub power switch separately installed.

No connection with the power receptacle

Upon completion of the repair, clean the air

conditioner and surrounding area, and

inform the customer of completion of the repair.

Cleaning

1-2 Samsung Electronics

MEMO

Samsung Electronics 2-1

2. Product Specifications

2-1 Table

ø/V/Hz

kcal/h

BTU/h

Watt/h

kcal/Wh

dBA

l/hr

m3/h

inch

set

3 / 380 / 50

11,250 / 12,200

45,000 / 48,800

3,000

5,000 / 4,700

2.25 / 2.60

9 / 8.7

53 / 54 63

5.8

1,920 4,800

590 / 704 930 / 1,200

1,810 / 1,925 1,240 / 1,370

420 / 600 385 / 540

75 / 85 123 / 133

R-22

4.8

Reciprocating

Internal thermostat (CM)

High pressure switch

Gas : 3/4”, Liquid : 3/8”

I.D 18 I.D 16

12 / 24

Power source

Capacity

(Cooling/Heating)

Aux. heater

Power consumption

E.E.R (Cooling/Heating)

Running current (C/H)

Noise level (C/H)

Moisture removal

Air circulation

Dimension Width

(Net/Packed) Height

Depth

Weight(Net/Packed)

Piping box

Refrigerant type

Refrigerant quantity

Compressor type

Protective device

Refrigerant piping size

Drain piping size

Loading Q’ty (20’/40’)

Model APH450PG

ITEM Indoor unit Outdoor unit

Indoor air temperature DB

Outdoor air temperature DB

APH450PG

Cooling Heating

27.0˚C(80.6˚F) 20.0˚C(68.0˚F)

19.0˚C(66.2˚F) 12.0˚C(53.6˚F)

35.0˚C(95.0˚F) 7.0˚C(44.6˚F)

24.0˚C(75.2˚F) 6.0˚C(42.8˚F)

Note: (1) The data are measured at the following conditions.

2-2 Samsung Electronics

Unit : mm

420

590 930

385

2-2 Dimensions

Samsung Electronics 3-1

3. Operating instructions and Installation

3-1 Operating Instructions

Operation Main switch operation

Operation of remote

controller

Operation of auto cool, auto heat, cool, heat, fan

Operation of turbo, cool, heat, fan

Function selection Auto cool mode

Cool mode

Fan mode

Manual 3-step

Auto

Left-right turn

Turbo operation

Convenience reservation

Function selector

Control offan motorstep according to current temperature

Auto heat mode Control offan motorstep according to current temperature

Operationof indoor fan motoronly

High,medium,low

Control offan motor stepaccording to current temperature

Turbo-operatingcompressorandpowerful operatingfan

motor(30minutes)

Reserve functionwhichisoff after ontime of 1, 2, 3, 4,or5

hours

Auto cool, auto heat, cool, heat, turbo, fan lamp

Selection of fan speed Low, medium, high lamp

Selection of airflow Left-right lamp

Current temperature Indoor temperature display

Desired temperature Desired temperature display

Fan speed diagram Low, medium, high, turbo lamp

Convenience reservation Reserve lamp and reserve time display

Current time Current time display

Control ofcoolaccording tothe differencebetweencurrent

anddesiredtemperature

Heat mode Control ofcoolaccording tothe differencebetweencurrent

anddesiredtemperature

Fan speed

selector mode

Airflow selector

mode

Convenience function

LED display

function

3-2 Samsung Electronics

Key name Key operating function Key type

On/off Start and end of operation TACT

- ON 1 time = operation start, ON again = operation end.

- No continued operation

Mode selection Change of the operation mode TACT

- Each time the button is pressed(ON), the mode is changed in the following order:

“auto →cool →fan”(standard=auto)

- No continued operation

Fan speed Setting of the indoor fan motor speed TACT

selection - Each time the button is pressed ON, the mode is changed in the following order:

“low →medium →high”(standard=high)

Temperature(time) Increase the desired temperature(current time) TACT

setting(up) - Temperature: When pressing the button(ON) one time,

the desired temperature is increased by the unit of 1°C.(18°C- 30°C)

- Time: When pressing the button(ON) one time, the time is increased by 1 minte.

If the “on” button is pressed continuously, the time is increased by 10 minutes.

- One short, and continued operation

Temperature(time) Decrease the desired temperature (current time) TACT

setting(down) - Temperature: When pressing the button(ON) one time,

the desired temperature is decreased by the unit of 1°C. (18°C - 30°C)

- Time: When pressing the button(ON) one time, the time is decreased by 1 minute.

If the “on” button is pressed continuously, the time is decreased by 10 minutes.

- One short, and continued operation

Change of display The temperature and current time can be changed. TACT

- If the “on” key is pressed 1 time, current temperature

and desired temperature are displayed.

- If the “on” key is pressed 1 time, current time is displayed.

Brief reservation The hours of 1,2,3,4 and 5 is selected whenever one time of on is performed. TACT

Heater on/off selection If the switch is selected to the on direction, the heater is operating at the heater SLIDE

operation condition.

The heater is not operating when the switch is selected to the off position.

* Operating functions

Fan Speed

adjustment

3-2 Key type and functions

3-2-1 PANEL key type and functions

Fan Speed

display Time/Temperature

display Operating Light Remote control

Sensor On/Off Button

Time/Temperature

Selection Time or Temperature

adjustment

Operating

Mode Selection Timer

adjustment

Auxiliary Heater

Switch (option)

Power Light

Samsung Electronics 3-3

3-3 Accessory Parts List

3-3-1 Connection Parts 3-3-2 Others

No.

Part Name Q’ty Remarks No.

4 1

10 1

11 1

12 1

Part Name Q’ty Remarks

Connecting pipe

Heater cable (3 strand)

Protection tube

Connecting wire (7 strand)

Wire of sensor (2 strand)

Power cable

Drain hose

Finishing tape

Insulation tape

Insulation tube for indoor

unit piping connection

3/8”

(ø9.52mm)

3/4”

(ø19.05mm)

Option

(Piping box)

Piping box

Leg holder for indoor unit

Screw

Cable clamp

Indoor unit fixing holder

Piping box

Leg holder for outdoor unit

Insulation rubber bottom

Cable tie

Putty

Pipe band

Rubber cabi slot

Rubber cabi hole

Drain plug out

TH M4 X 12

TH M4 X 25

12N

Option(Pipingbox)

3-4 Samsung Electronics

3-4 Installation

3-4-1 Selection of Installation Place

3-4-1(a) Indoor Unit

3-4-1(b) Outdoor Unit

*If there is any unavoidable reason to install the unit at such

a place, take the following measures against the wind;

1. When installing the unit at a roadside concentrated with

buildings, install it parallel with the road.

2. Install the unit so that the air outlet faces toward the wall

at a place such as rooftop, which may be subjected to

strong wind.

* The outdoor unit should be installed in accordance with the service space.

•Place free from the risk of combustible gas leakage.

•Place which can bear the weight of the unit.

•Place which can bear the fixing strength of the outdoor unit.

•Avoid a place subject to oil (including machine oil).

•Avoid a saline place.

•Avoid a place subject to sulfide gas (hot spring zone).

(When installing the unit at such special environmental

conditions, it may cause machine trouble. When it is

unavoidable to use such places. It requires special

maintenance.)

• A place where the discharge air and noise of the outdoor unit do not disturb the neighborhood.

(Take special care not to cause any inconvenience to your neighbors when installing the unit on

the borderline with your neighborhood.)

• A place where strong wind does not head against the air outlet of the outdoor unit.

(If a strong wind heads directly against the air outlet at the time of cool operation, a safety device

can be operated.)

•Do not install the outdoor unit at an unstable place such as outer wall of an apartment or build-

ing.

The outdoor unit may fall down, causing severe personal or property damage or loss.

•Install the unit at a place close to the wall facing the outside

as it is necessary to perform piping connection with the out-

door unit.

- It is effective to install the unit at a window side to ensure

uniform distribution of indoor temperature.

•Install the unit at a place where there is no obstacle against

the wind around the air inlet and air outlet.

• Install the unit horizontally at a stable, rigid place.

(When installing the unit at a place subjected to vibration,

noise may occur.)

•Avoid a place near the door which is frequented by people.

•Avoid a place subject to direct sunlight.

Above 15cm

Above 50cm

Above 15cm

Above 50cm

Above 30cm

The air inlet faces toward the wall. The air outlet faces toward the wall.

Space for piping

and wiring

Space for piping

and wiring

Wall Strong wind

Roof top

Above 50cm

Above 100cm

Above 20cm

Top view

Side view

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