Acson AWM 301 User manual

WALL MOUNTED

SPLIT TYPE AIR CONDITIONER

Model: IM-WM1-0302-ACSON

WALL MOUNTED

INSTALLATION MANUAL

OUTLINE AND DIMENSIONS

All dimensions are in mm / (in)

Dimension A B C D E

WM071 / 101 / 151 / 1R 785,0 (30,9) 297,0 (11,7) 174,0 (6,85) 595,0 (23,4) 280,0 (11,0)

WM201 / 201R 1050,0 (41,3) 320,0 (12,6) 190,0 (7,5) 730,0 (28,7) 311,0 (12,2)

WM 251 / 251R / 301 / 311 / 301R 1200,0 (44,1) 360,0 (14,2) 200,0 (7,9) 730,0 (28,7) 347,0 (13,7)

Indoor Unit

INSTALLATION PLATE

FRONT VIEW

TOP VIEW

SIDE VIEW

Outdoor Unit (SL-Series)

Dimension A B C D E F G H J K L M N P Q R

07B / 07BR 740 494 270 266 233 474 47 55 65 166 92 348 318 129 482 68,5

10B / 10BR (29,1) (19,4) (10,6) (10,5) (9,2) (18,7) (1,9) (2,2) (2,6) (6,5) (3,6) (13,7) (12,5) (5,1) (19,0) (2,7)

15B / 15BR

20B / 20BR 840 646 330 297 309 626 41 85 75 177 106 408 378 124 592 78,5

25B / 25BR (33,1) (25,4) (13,0) (11,7) (12,2) (24,6) (1,6) (3,3) (3,0) (7,0) (4,2) (16,1) (14,9) (4,9) (23,3) (3,1)

30B / 30BR

28C / 28CR 855 750 328 303 309 730 49 116 75 187 98 392 362 126 603 164

(33,7) (29,5) (12,9) (11,9) (12,2) (28,7) (1,9) (4,6) (3,0) (7,4) (3,9) (15,4) (14,3) (5,0) (23,7) (6,5)

All dimensions are in mm / (in)

15 (0,6)

39 (1,5)

840 (33,1)

15 (0,6)

39 (1,5)

5 (0,2)

20 (0,8)

2,5 (0,1)

5 (0,2)

160 (6,3) H

141 (5,6)

(2,6)

20 (0,8)

Outdoor Unit (SL071 & 10/15 C/CR)

All dimensions are in mm / (in)

Dimension A B C D E F G H I J K L M N O

071 / 1R 600 (23,6) 475 (18,7) 245 (9,6) 418 (16,4) 177 (6,9) 35 (1,3) 93 (3,6) 81 (3,1) 83 (3,2) 55 (2,2) 398 (15,6) 101 (3,9) 97 (3,8) 17 (0,6) 22 (0,8)

10 / 15 C /CR 700 (27,5) 521 (20,5) 250 (9,8) 485 (19,1) 175 (6,8) 36 (1,4) 95 (3,7) 93 (3,6) 86 (3,3) 68 (2,6) 441 (17,3) 130 (5,1) 111 (4,3) 15 (0,5) 18 (0,7)

40 (1,57)

400 (15,75)

320 (12,60)

20 (0,79) 448 (17,64)

141,5 (5,57)

40 (1,57)

20 (0,79)

141,5 (5,57)

Outdoor Unit (SL30C)

This product is subjected to Waste of Electrical and Electronic Equipment Regulations (WEE

Regulations). The waste product shall be separately collected by specific collection and treatment centre

lease refer to local authorithy for these centres. This is only applicable to European Union countries

Ce produit est soumis

la r

glementation concernant les

chets

quipements

lectriques e

lectroniques (r

par

ent par un centre de collect

tre ces centres. Ceci

îî

enne

Questo prodotto

soggetto alle disposizioni RAEE (Rifiuti di apparecchiature elettriche ed elettroniche)

locali. Questa disposizione

valida solamente i paes

’

ctrico y Electr

ico en materia d

fico

íí

de colecc

solamente aplicable a los p

ses de la

Europea

tes

ää

getrennt vom Hausm

ll bei Ihrer

tlichen

lldeponie bzw. Ihrem

tliche

ndiges Abfall-Amt. Dieser

ää

Hinweis gilt nur f

nder der Europ

ää

ischen Union

анног

авил

Ев

опейског

25 (0,98)

1030 (40,55)

850 (33,46)

50 (1,97)

85 (3,35)

!Осторожно Острые края и поверхности змеевиков являются потенциальными

местами нанесения травм. Остерегайтесь контакта с этими местами.

!Cuidado Los Bordes afilados y la superficie del serpentín pueden producir lesiones. Evite

tocarlos.

!Cautela Per preservarsi da eventuali ferite, evitare di toccare gli spigoli afilati e la superficie

dei serpentini.

!Vorsicht Scharfe Kanten und Wärmetauscherflächen stellen eine Gefahrenquelle dar.

Jeglicher Kontakt mit diesen Stellen ist zu vermeiden.

!Avertissement Les bords coupants et les surfaces du refroidisseur tuulaire présentent un

risque de blessure. Mieux vaut éviter le contact avec ces endroits.

!Caution Sharp edges and coil surfaces are potential locations which may cause

injury hazards. Avoid from being in contact with these places.

NOTICE

1-1

English

This manual provides the procedures of installation to ensure a safe and good standard of operation for the air

conditioner unit.

Special adjustment may be necessary to suit local requirements.

Before using your air conditioner, please read this instruction manual carefully and keep it for future reference.

INSTALLATION MANUAL

WALL MOUNTED SPLIT TYPE AIR CONDITIONER

MODEL

IM-WM1-0302(2)-Acson

Part No.: A08019025521

COOLING UNIT (R22)

Reference Model Model

WM301 AWM301

SL30C ALC30C

SL30B ALC30B

COOLING UNIT (R410A)

Reference Model Model

5WM311 A5WM311

5SL28C A5LC28C

HEAT PUMP UNIT (R22)

Reference Model Model

WM301R AWM301R

SL30CR ALC30CR

SL30BR ALC30BR

HEAT PUMP UNIT (R410A)

Reference Model Model

5WM301R AWM301R

5SL28CR A5LC28CR

1-2

!Caution

Please take note of the following important points when installing.

• Do not install the unit where leakage of flammable gas may occur.

If gas leaks and accumulates at the surrounding of the unit, it may cause fire ignition.

• Ensure that the drainage piping is connected properly.

If the drainage piping is not connected properly, it may cause water leakage which will dampen the

furniture.

• Do not overcharge the unit.

This unit is factory pre-charged. Overcharge will cause over-current or damage to the compressor.

• Ensure that the units panel is closed after service or installation.

Unsecured panels will cause the unit to operate noisily.

CONTENTS

- Outline and Dimensions page i-ii

- Safety Precautions page 2

- Installation Diagram page 3

- Installation of the Outdoor Unit page 3

- Installation of the Orifice Pipe page 4

- Installation of the Indoor Unit page 6

- Refrigerant Piping page 7

- Electrical Wiring Connection page 8

Special Precautions When Dealing With R410A Unit

page 10

- Vacuuming and Charging page 10

- Indicator Lights page 11

- Air Conditioner Unit Operation page 13

- Standard Operating Conditions page 14

- Electrostatic Filter page 14

- Service and Maintenance page 15

- Troubleshooting page 16

Before installing the air conditioner unit, please read the following safety precautions carefully.

SAFETY PRECAUTIONS

!Warning

• Installation and maintenance should be performed by qualified persons who are familiar with local code and

regulation, and experienced with this type of appliance.

• All field wiring must be installed in accordance with the national wiring regulation.

• Ensure that the rated voltage of the unit corresponds to that of the name plate before commencing wiring work

according to the wiring diagram.

• The unit must be GROUNDED to prevent possible hazard due to insulation failure.

• All electrical wiring must not touch the refrigerant piping, compressor or any moving parts of the fan motors.

• Confirm that the unit has been switched OFF before installing or servicing the unit.

IMPORTANT

DO NOT INSTALL OR USE THE AIR CONDITIONER UNIT IN A LAUNDRY ROOM.

1-3

English

Dimension A

Minimum

Distance, mm 300 1000

INSTALLATION DIAGRAM

Air Intake Grille

Air Discharge

Grille

Air Intake

Refrigerant Piping

Drain Hose

Front Frame

Back Housing

On/Off Switch

Air Filters

Indicator Lights

Signal Receiver

Air Discharge

Louver

Outdoor Unit

Indoor Unit

INSTALLATION OF THE OUTDOOR UNIT

Obstacle

Return Air

Discharge Air

Service Access

The outdoor unit must be installed in such a way, so as to

prevent short circuit of the hot discharged air or obstruction

to the smooth air flow. Please follow the installation clear-

ance shown in the figure. Select the coolest possible place

where intake air temperature is not greater than the outside

air temperature (maximum 45°C/113°F).

Installation clearance

Note: If there is any obstacle higher than 2m, or if there is

any obstruction at the upper part of the unit, please allow

more space than the figure indicated in the above table.

Air Discharge

Nozzle

Obstacle

Return Air

Air Intake

(in) (11.8) (39.4) (11.8) (19.7)

B C D

300 500

1-4

INSTALLATION OF ORIFICE PIPE

Orifice Pipe

Outdoor Unit Indoor

Orifice

Pipe, connecting

Flare nut 3/8" (Female)

Flare joint 3/8" (Male)

!Caution

The orifice pipe must be installed in the correct direction as shown above.

Improper direction may cause failure to the operating system.

Note: This installation is only for WM301 / SL30B & WM301 / SL30C

A. Outdoor unit orifice pipe installation (where installation space is wide enough)

Orifice Pipe

Step 2

Step 1

Steps:

1. Directly connect the “Female” nut of the orifice pipe to

the liquid valve.

2. Flare the liquid pipe and connect it to the “Male” joint

of the orifice pipe.

Orifice Pipe

Liquid Pipe

1-5

English

Liquid Pipe

Brazer

C. Indoor unit orifice pipe installation

Indoor Unit

Orifice Pipe

B. Outdoor unit orifice pipe installation (where installation space is limited)

Step 4

Step 3

Step 2

Step 1

Orifice Pipe

If the orifice pipe cannot be connected directly to the liquid valve due to space constraint, it can be connected in between of the

liquid pipe.

Steps:

1. Flare the liquid pipe and connect it to the liquid valve.

2. Braze an additional “Male” joint to the liquid pipe.

3. Connect the “Female” nut of the Orifice pipe to

the“Male” joint.

4. Flare another liquid pipe and connect it to the “Male”

joint of the orifice pipe.

Steps:

1. Braze an additional “Male” joint

to the liquid pipe.

3. Flare another liquid pipe and

connect it to the “Male” joint

of the orifice pipe.

2. Connect the “Female” nut of the

Orifice pipe to the“Male” joint.

Liquid Pipe

Brazer

Liquid Pipe Orifice Pipe Liquid Pipe

Orifice Pipe

Liquid Pipe Orifice Pipe

Liquid Pipe

Orifice Pipe

1-6

INSTALLATION OF THE INDOOR UNIT

Maintenance &

Servicing Space

Air Flow

Direction

Higher Than

Eye Level

The indoor unit must be installed in such a way so as to

prevent short circuit of the cool discharged air with the hot

return air. Please follow the installation clearance shown in

the figure. Do not place the indoor unit where there could be

direct sunlight shining on it. Also, this location must be

suitable for piping and drainage, and be away from doors or

windows.

Mounting installation plate

Ensure that the wall is strong enough to withstand the weight

of the unit. Otherwise, it is necessary to reinforce the wall

with plates, beams or pillars.

Use the level gauge for horizontal mounting, and fix it with

4 suitable screws.

In case the rear piping draws out, drill a hole 65mm in

diameter with a cone drill, slightly lower on the outside wall

(see figure).

Routing of piping

Remove the screw holding the front panel.

Piping routing

Installation plate

Marking-offline

Thread

Inside Outside

1/50 Inclination

Right & rear side routing

The refrigerant piping can be routed to the unit in a

number of ways (left or right from the back of the unit), by

using the cut-out holes on the casing of the unit (see figure).

Bend the pipes carefully to the required position in order to

aligned it with the holes. For the right hand and rear side

out, hold the bottom of the piping and then position it to the

required direction (see figure). The condensation drain hose

can be taped to the pipes.

Mount the unit onto the installation plate

Hook the indoor unit onto the upper portion of the

installation plate (Engage the two hooks at the rear top of

the indoor unit with the upper edge of the installation plate).

Ensure that the hooks are properly seated on the

installation plate by moving it to the left and right.

End

Dipped

Into

Water

Leaking

Water

Leaking Water

Leaking

Water drainage piping

The indoor drain pipe must be in a downward gradient for

smooth drainage. Avoid situations that are likely to cause

water to leak.

Connecting cable

Drain hose

Wrong

Correct

✓

50mm 50mm

50mm

50mm 50mm

50mm

Water Drainage

1-7

English

Piping length and elevation

If the pipe is too long, both the capacity and reliability of

the unit will drop. As the number of bends increases,

resistance to the flow of refrigerant system increases, thus

lowering cooling capacity. As a result the compressor may

become defective. Always choose the shortest path and

follow the recommendations as tabulated below:

Remark: The refrigerant pre-charged in the outdoor unit

is for piping length up to 7.62m/25ft.

REFRIGERANT PIPING

Outdoor unit

Indoor unit

Cutting copper tube

Piping works

• Do not use contaminated or damaged copper tubing. Do not

remove plastic, rubber plugs and brass nuts from the valves,

fittings, tubings and coils until you are ready to connect

suction or liquid line into valves or fittings.

• If any brazing work is required, ensure that the nitrogen gas

is passed through coil and joints while the brazing work is

being done. This will eliminate soot formation on the inside

walls of the copper tubings.

• Cut the connection pipe with a pipe cutter.

• Remove burrs from cut edges of the pipes with remover. Hold

the end of the pipe downwards to prevent metal chips from

entering the pipe.

• Insert the flare nuts, mounted on the connection parts of both

the indoor unit and outdoor unit onto the copper pipes.

• Flare the pipe with extra length above the flaring tool as shown

in the table.

• The flared edge must be even and not cracked or scratched.

!Caution

An orifice is used as expansion device in WM301 cooling only unit. It is fixed in the liquid pipe in the indoor unit.

Piping connection to the units

• Align the center of the piping and tighten the flare nut

sufficiently with fingers.

• Finally, tighten the flare nut with the torque wrench

until the wrench clicks.

Ø Tube, D A (mm)

Inch mm Imperial Rigid

1/4" 6.35 1.3 0.7

3/8" 9.52 1.6 1.0

Spanar Torque Wrench

Indoor Piping Flare Nut

Flared TubeFlare Joint

Pipe Size mm / (in) Torque Nm / (Ft-lb)

12.7 (1/2) 55 (40.6)

15.88 (5/8) 65 (48.0)

6.35 (1/4) 18 (13.3)

9.53 (3/8) 42 (31.0)

1/2" 12.70 1.9 1.3

5/8" 15.88 2.2 1.7

25Model 07/10 15 20 30

Maximum length, m (ft), L

(39.4)

(49.2)

(114.8)

Maximum elevation m (ft), H 5 (16.4) 5 (16.4) 8 (26.2) 8 (26.2) 15 (49.2)

Maximum number of bends 10 10 10 10 10

Liquid pipe size 1/4" 1/4" 1/4" 3/8" 3/8"

Gas pipe size 3/8" 1/2" 5/8" 5/8" 5/8"

Copper tube

Swaging block

Remove burr

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