AWMX-2004 - Acson International
AWMX-2004
Contents
1. Features....................................................................................................................... 1
2. Specifications............................................................................................................... 2
3. Noise Level ................................................................................................................. 3
4. Operating Range ........................................................................................................ 5
5. Refrigeration Cycle Diagram....................................................................................... 6
6. Outlines and Dimensions ............................................................................................. 7
7. Wiring Diagrams ......................................................................................................... 8
8. Safety Precautions before Installation ......................................................................... 9
9. Special Precautions for R410A .................................................................................. 11
10. Installation ................................................................................................................. 13
11. Remote Control Operation Guide ............................................................................. 21
12. Servicing and Maintenance....................................................................................... 24
13. Troubleshooting ........................................................................................................ 26
14. Part List..................................................................................................................... 28
1. Features
Energy Saving
Total energy saved can be as high as 30% compared to the conventionally controlled units.
Efficient
ACSON DC Inverter series achieve excellent efficient with high EER & COP rating.
Comfortable
Users enjoy better comfort and quietness with inverter technology. When the environmental factors, such as
temperature, humidity, airflow and/or outside ambient conditions, are obtained and processed through a control
algorithm, the compressor motor speed can be varied to optimize the cooling power to create a more precisely controlled
room temperature (i.e. less temperature fluctuation).
*R410A Refrigerant (NEW)
Introducing the new type of refrigerant – R410A which is environmental friendly with no Ozone Depletion Potential (ODP
= 0). R410A also giving the higher volumetric capacity and better refrigerating effect per unit of volume.
Advance Technology
The traditional conventional air conditioners repeat “the start” and “the stop” during the thermostat cycle off and cause
the unstable of room temperature. Incorporating fuzzy logic control into the Acson Inverter design enables greater
flexibility in handling the system control.
This result in:
Powerful, efficient and economical operation.
Even room temperature control.
Constant and quiet compressor operation.
Enhanced system reliability and reduced maintenance costs.
Self Diagnostic
Both indoor and outdoor LED Error Code Indicator helps to simplify the trouble shooting process. Where there’s fault
detected during operation, the detect code will be to indicate the faults.
Wireless Remote Control
-
The compact LCD transmitter is able to operate the air conditioner unit within the distance of 9 meters.
Fan motor speed can be set as low / medium / high or automatic.
Sleep mode automatically increase set temperature since room temperature is lower at night thus achieving
comfort surrounding.
Airflow direction can be controlled automatically.
Room temperature is controlled by electronic thermostat.
The unit can be preset to on and off automatically for maximum of 15 hours by using timer on/off.
Introducing turbo mode, which allows inverter compressor operates at high power and maximum speed to
achieve required temperature fast
1
2. Specifications
MODEL
NOMINAL COOLING CAPACITY
NOMINAL HEATING CAPACITY
COIL
kcal/h
W
Btu/h
kcal/h
W
Btu/h
W
W
A
A
V/Ph/Hz
W
A
mm/in
mm/in
mm/in
2
2
m /ft
mm/in
mm/in
mm/in
kg
dBA
mm/in
mm/in
mm/in
mm/in
FIN
TUBE
FAN
COIL
OUTDOOR UNIT
PIPE
mm/in
A
W
W
cfm / L/s
mm/in
mm/in
mm/in
2
AWMX15FR
A5LCX15CR
3024 (882-3780)
3517 (1026-4396)
12000 (3500-15000)
3528 (882-4284)
4103 (1026-4982)
14000 (3500-17000)
1095
1270
5.4
6.3
220-240 / 1 / 50
R410A
300 / 142
310 / 146
230 / 109
270 / 127
190 / 90
230 / 109
4P x 13W
4P x 13W
35
35
0.15
0.15
INNER GROOVED COPPER TUBE
7 / 0.276
0.32 / 0.013
ALUMINIUM(HYDROPHILIC)
0.11 / 0.0043
2
18
0.198/2.131
290/11.4
815/32.1
179/7.0
9.5
38/32/29
39/34/31
FUZZY LOGIC CONTROL
LOUVER (UP & DOWN) & GRILLE (LEFT & RIGHT)
LCD WIRELESS REMOTE CONTROL
16 / 0.63
ANTI-FUNGUS POLYPROPYLENE FILTER
371 / 14.6
875 / 34.4
269 / 10.6
DC BRUSHLESS SCROLL
BRUSHLESS MOTOR
ELECTRONIC CONTROL
PROPELLER / DIRECT
GLASS REINFORCED ACRLY STYRENE RESIN
401/15.8
0.24
0.31
25
35
56
71
800 / 378
900 / 425
SEAMLESS INNER GROOVED COPPER TUBE
7 / 0.276
0.32 / 0.013
ALUMINIUM(HYDROPHILIC)
0.11 / 0.0043
2
18
0.35 / 3.78
540 / 21.3
700(+70) / 27.6(+2.8)
250 / 9.8
38
38
GALVANISED MILD STEEL
0.8 / 0.031
EPOXY POLYESTER POWDER
46
49
FLARE
6.35 / 1/4
6.35 / 1/4
9.52 / 3/8
12.7 / 1/2
601
803
320
0.78
0.79
cfm / L/s
cfm / L/s
cfm / L/s
COMP.
FIN
TUBE
FAN
RATED TOTAL POWER CONSUMPTION (COOLING)
RATED TOTAL POWER CONSUMPTION (HEATING)
RATED TOTAL RUNNING CURRENT (COOLING)
RATED TOTAL RUNNING CURRENT (HEATING)
POWER SOURCE
REFRIGERANT
HIGH
AIR FLOW
MEDIUM
LOW
FAN MOTOR
INPUT POWER
RUNNING CURRENT
MATERIAL
DIAMETER
THICKNESS
MATERIAL
THICKNESS
ROW
FIN PER INCH
FACE AREA
HEIGHT
DIMENSION
WIDTH
DEPTH
WEIGHT
SOUND PRESSURE LEVEL ( H/M/L )
ROOM TEMPERATURE
CONTROL
AIR DISCHARGE
OPERATION
CONDENSATE DRAIN SIZE
AIR FILTER
PACKING
HEIGHT
DIMENSION
WIDTH
DEPTH
COMPRESSOR TYPE
MOTOR
PROTECTION DEVICE
FAN TYPE / DRIVE
BLADE MATERIAL
DIAMETER
RATED RUNNING CURRENT
MOTOR OUTPUT
RATED INPUT POWER
AIR FLOW
MATERIAL
DIAMETER
THICKNESS
MATERIAL
THICKNESS
ROW
FIN PER INCH
FACE AREA
HEIGHT
DIMENSION
WIDTH (WITH COVER)
DEPTH
WEIGHT
MATERIAL
CASING
THICKNESS
FINISHING
SOUND PRESSURE LEVEL
TYPE
SIZE
LIQUID
GAS
PACKING
HEIGHT
DIMENSION
WIDTH
DEPTH
REFRIGERANT CHARGE
INDOOR UNIT
AWMX10FR
A5LCX10CR
2394 (1008-3024)
2784 (1172-3517)
9500 (4000-12000)
2898 (1008-3780)
3370 (1172-4396)
11500 (4000-15000)
730
1000
3.5
4.8
INDOOR UNIT
OUTDOOR UNIT
2
m /ft
mm/in
mm/in
mm/in
kg
mm/in
dBA
mm/in
mm/in
mm/in
mm/in
mm/in
kg
1) ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE
2) NOMINAL COOLING AND HEATING CAPACITY ARE BASED ON THE CONDITIONS BELOW :
a) COOLING - 26.7°C DB / 19.4°C WB INDOOR AND 35°C DB OUTDOOR
b) HEATING - 21.1°C DB / 15.6°C WB INDOOR AND 8.3°C DB / 6.1°C WB OUTDOOR
3) SOUND PRESSURE LEVEL ARE ACCORDING TO THE JIS B 8615 STANDARD.
POSITION OF THE MEASUREMENT POINT IS 1.0 m IN FRONT AND 1.0 m BELOW THE UNIT.
2
3. Noise Level
SOUND PRESSURE LEVEL (MEASURED IN ANECHOIC ROOM)
DC INVERTER WALL MOUNTED UNIT
240V/50Hz/1PH
Model
AWMX10FR
AWMX15FR
Speed
(RPM)
High (1250)
Medium (1110)
Low (980)
High (1300)
Medium (1150)
Low (1000)
125
32
32
29
32
32
30
1/1 Octave A-weighted Sound Pressure (dBA), ref 20µPa
250
500
1k
2k
4k
33
35
34
31
23
29
32
31
27
18
26
29
26
21
15
34
36
36
32
24
30
33
33
29
20
26
30
27
22
15
8k
16
14
12
16
15
13
Overall
A (dBA)
38
32
29
39
34
31
Noise
Criteria
33
30
24
35
32
25
Microphone position: WMF/FR – 1 m in front of the unit and 0.8 m below the vertical centre line of the
unit. (JIS C 9612)
Model
Measuring location
AWMX10FR
AWMX15FR
Standard : JIS C 9612
3
AWMX10FR NC CURVE (240V, 50Hz)
AWMX15FR NC CURVES (240V, 50Hz)
4
4. Operating Range
Ensure the operating temperature is in allowable range.
Cooling only
Cooling
Caution :
Outdoor temp. (°CDB)
54
HIGH AMBIENT
UNIT
46
The use of your air conditioner
outside the range of working
temperature and humidity can
result in serious failure.
35
STD
19
LOW AMBIENT
KIT
-5
15
24
Indoor temp. (°CWB)
Heat pump
Cooling
Heating
54
6
Outdoor temp. (°CDB)
Outdoor temp. (°CWB)
18
STD
-9
HIGH AMBIENT
UNIT
46
35
STD
19
LOW AMBIENT
KIT
-5
15
21
15
27
24
Indoor temp. (°CWB)
Indoor temp. (°CDB)
5
5. Refrigeration Cycle Diagram
Model : AWMX 10 / 15 FR – A5LCX 10/15CR
6
6. Outlines and Dimensions
INDOOR UNIT
Model : AWMX 10FR / 15FR
NOTE : Dimension in mm
OUTDOOR UNIT
Model : A5LCX 10CR/ 15CR
7
7. Wiring Diagram
MODEL : AWMX10FR / 15FR
MODEL : A5LCX10CR / 15CR
8
8. Safety Precautions Before Installation
Before operating, please read the following "Safety Precautions" carefully.
To prevent injury to the user or other people and properties damage, the following instructions must be
followed.
ƒ Incorrect operation due to ignoring of instruction will cause harm or damage, the seriousness is
classified by the following indications.
Warning: This sign indicates the possibility of causing death or serious injury.
Caution: This sign indicates the possibility of causing injury or damage to properties
only.
Warning
•
•
This unit must be installed by a qualified technician.
All field wiring must accordance to the National Wiring Regulation.
Important
The wires in this mains lead are coloured in accordance with the following code:
Green-and-yellow
Blue
Brown
Earth
Neutral
Live
As the colours of the wires in the mains lead of this appliance may not correspond with the
coloured markings identifying the terminals in your plug, proceed as follows:
• The wire which is coloured green-and-yellow must be connected to the terminal in
the plug which is marked with the earth symbol
or coloured green or
green-and-yellow.
• The wire which is coloured blue must be connected to the terminal which is
marked with the letter N or coloured black.
• The wire which is coloured brown must be connected to the terminal which is
marked with letter L or coloured red.
Note
If the supply cord is damaged, it must be replaced by the special cord obtainable at
authorized service/parts centers.
This unit is not provided with a plug, therefore the power supply wire must be connected by
a qualified chargeman.
Caution
Remove power plug or disconnect from the mains before servicing the appliance.
9
Symbol (with white background) denotes item that is PROHIBITED from doing.
Symbol (with black background) denotes item that is COMPULSORY to be carried out.
Caution
Please confirm the following important points when installation
• Grounding is necessary
It may cause electrical shock if grounding is not perfect.
• Do not install the unit where leakage of flammable gas may occur
In case of gas leaks and accumulates at the surrounding of the unit, it may cause
fire ignition.
ƒ Confirm drainage piping is connected properly
If it is not connected perfectly, it may cause water leakage and dampen the
furniture.
• Confirm the unit is switched off before install, service or maintain the unit
If it is not switched off, it may cause injury to the installer by any of the moving part
especially fan.
• Do not overcharge the unit
This unit is factory pre-charged. Over charge will cause over current or damage to
the compressor.
Refer to page 25 in case of top up charge is necessary.
• Confirm cover back the unit panel after servicing or installation
Unsecure panel will cause unit noisy.
10
9. Special Precautions For R410A
SPECIAL PRECAUTIONS WHEN DEALING WITH REFRIGERANT R410A UNIT
1) What is new refrigerant R410A?
R410A is a new HFC refrigerant which does not damage the ozone layer. The working pressure of this new
refrigerant is 1.6 times higher than conventional refrigerant (R22), thus proper installation / servicing is essential.
2) Components
Mixture weight composition R32 (50%) and R125 (50%).
3) Characteristic
•
R410A liquid and vapor components have different compositions when the fluid evaporates or condenses. Hence,
when leak occurs and only vapor leaks out, the composition of the refrigerant mixture left in the system will change
and subsequently affect the system performance. DO NOT add new refrigerant to leaked system. It is recommended
that the system should be evacuated thoroughly before recharging with R410A. Reclaiming, recycling and disposing
of refrigerant must comply with local code.
When refrigerant R410A is used, the composition will differ depending on whether it is in gaseous or liquid phase.
Hence when charging R410A, ensure that only liquid is being withdrawn from the cylinder or can. This is to make
certain that only original composition of R410A is being charged into the system.
POE oil is used as lubricant for R410A compressor, which is different from the mineral oil used for R22 compressor.
Extra precaution must be taken not to expose the R410A system too long to moist air.
•
•
4) Check list before installation/servicing
•
Tubing
Refrigerant R410A is more easily affected by dust of moisture compared with R22, make sure to temporarily cover
the ends of the tubing prior to installation.
Compressor oil
No additional charge of compressor oil is permitted.
Refrigerant
No other refrigerant other that R410A
Tools (Size of service port is different from R22 system)
Tools specifically for R410A only (must not be used for R22 or other refrigerant)
i) Manifold gauge and charging hose
ii) Gas leak detector
iii) Refrigerant cylinder/charging cylinder
iv) Vacuum pump c/w adapter
v) Flare tools
vi) Refrigerant recovery machine
•
•
•
5) Handling and installation guidelines
Like R22 system, the handling and installation of R410A system are closely similar. All precautionary measures; such
as ensuring no moisture, no dirt or chips in the system, clean brazing using nitrogen, and thorough leak check and
vacuuming are equally important requirements. However, due to its hydroscopic POE oil, additional precautions must
be taken to ensure optimum and trouble-free system operation.
a)
During installation or servicing, avoid prolong exposure of the internal part of the refrigerant system to moist air.
Residual POE oil in the piping and components can absorb moisture from the air.
11
b)
Ensure that the compressor is not expose to open air for more than the recommended time specified by its
manufacturer (typically less than 10 minutes). Removed the seal-plugs only when the compressor is about to be
brazed.
c)
The system should be thoroughly vacuumed to 1.0 Pa (-700mmHg) or lower. This vacuuming level is more
stringent than R22 system so as to ensure no incompressible gas and moisture in the system.
d)
When charging R410A, ensure that only liquid is being withdrawn from the cylinder or can. This is to ensure that
only the original composition of R410A is being delivered into the system. The liquid composition can be different
from the vapor composition.
Invert cylinder
without dip-pipe
Dip-pipe
Liquid
withdrawal
e)
Normally, the R410A cylinder or can is being equipped with a dip-pipe for liquid withdrawal. However, if the dip-pipe
is not available, invert the cylinder or can so as to withdraw liquid from the valve at the bottom.
12
10. Installation
INSTALLATION DIAGRAM
Indoor Unit
Outdoor Unit
CAUTION : Before installing the unit, ensure that the power supply matches the power requirement of the air conditioner.
13
1) SELECTION OF LOCATION AND SPACE
(A) INDOOR UNIT
Install the fan coil (indoor) unit at a location with the following requirements
• Location is suitable for wiring, piping and drainage.
• No obstruction of air flow into and out of unit where cooler air can be evenly distributed.(See fig. 1)
• Ensure that air discharge is not short circuited with air intake.
• Ensure that wall is sufficiently strong, rigid, flat, perpendicular and vibration free.
• Where air filter cassette can be slided in or out easily.
• Where there is no danger of flammable gases.
• Where there is no direct sunlight on unit.
• Also to take into consideration a place for the installation of the Wireless LCD Remote Controller.
MAINTENANCE & SERVICING SPACE
AIR FLOW DIRECTION
CAUTION : Do not install unit near the door way
because excessive fresh air may cause
panel condensation on the unit.
Fig. 1
14
(B) OUTDOOR UNIT
As condensing temperature rises, evaporating temperature rises and cooling capacity drops. In order to
achieve maximum cooling capacity, the location selected for outdoor unit should fulfill the following
requirements :
• Install the condensing (outdoor) unit in away such that hot air distributed by the outdoor condensing
unit cannot be drawn in again (as in the case of short circuit of hot discharge air). Allow sufficient
space for maintenance around the unit.
•
•
Ensure that there is no obstruction of air flow into or out of the unit. Remove obstacles which block air
intake or discharge.
The location must be well ventilated, so that the unit can draw in and distribute plenty of air thus
lowering the condensing temperature.
•
•
A place capable of bearing the weight of the outdoor unit and isolating noise and vibration.
A place protected from direct sunlight. Otherwise use an awning for protection, if necessary.
•
The location must not be susceptible to dust or oil mist.
INSTALLATION CLEARANCE
•
Outdoor units must be installed such that there is no short circuit of the hot discharge air or
obstruction to smooth air flow. Select the coolest possible place where intake air should not be hotter
than the outside temperature.
ALL MODELS
A
B
C
D
Minimum Distance
300mm
1000mm
300mm
500mm
CAUTION : If the condensing unit is operated in an atmosphere containing oils(including machine
oils), salt(coastal area), sulphide gas(near hot spring, oil refinery plant), such
substances may lead to failure of the unit.
15
2) DRILLING HOLES AND MOUNTING INSTALLATION PLATE
CAUTION:
i) Please check the unit weight for each model. Always ensure that the wall is sufficiently
strong to withstand the weight. If not, it is necessary to reinforce the wall with plate, beams
or pillars.
ii) The unit cannot be directly fixed onto the wall or the likes. In all cases, the installation plate
provided MUST be used.
• Paste the installation plan provided on the desired location on the wall and mark the holes
location accordingly.
• Ensure that the minimum maintenance and servicing space at the top, left and right side of
the unit is reserved.
• Ensure also the levelness of the installation plate.
• Drill the screw mounting holes (minimum 4 screws are required).
• Drill the pipe hole at the location as per plan. (This is only applicable for rear piping outlet
installation).
Note: The hole should be drilled slightly lower at outdoor side as per figure below:-
•
Fix the installation plate firmly to wall, without tilting to left or right. Use a plumb line, if available.
Screw position
in the wall
∅ 65.0 mm Hole
in the wall
• Fixing method:WOODEN
FRAME WALL
REINFORCED CONCRETE BUILDING
NUT ANCHOR
BOLT ANCHOR
16
3) INDOOR UNIT PREPARATION
•
•
The refrigerant piping can be routed to
the unit in 5 direction, by using the cut
outs in the unit casing. (See fig. 1)
Carefully bend the pipes to the required
position to align with the hole. For right
hand and rear side draw out, hold the
bottom of the piping and fix direction
before shaping it to the desired position
(See fig. 2). The condensation drain hose
should be taped to the pipes with vinyl
tape. The electrical cable can also be
taped to the pipes.
4) MOUNTING INDOOR UNIT
Hook the indoor unit onto the upper portion of installation plate. (Engage the 2 hooks of rear top of the
indoor unit with the upper edge of the installation plate). Ensure the hooks are properly seated on the
installation plate by moving in left and right.
1. Hook the unit into the
installation plate.
2. Fix the rivet underneath
after completion of
installation.
17
5) WATER DRAINAGE PIPING
The indoor drain pipe must be downward gradient for smooth drainage. Avoid situation as shown in figure
below.
6) WIRING
ELECTRICAL CONNECTION
•
Wiring regulation on wire diameters differ from country to country. Please refer to your LOCAL
ELECTRICAL CODES for field wiring rules. Be sure that installation comply with such rules and
regulations.
GENERAL PRECAUTIONS
•
•
•
•
•
•
Ensure that the rated voltage of the unit corresponds to the name plate before carrying out proper
wiring according to the wiring diagram.
Provide a power outlet to be used exclusively for each unit. A power supply disconnect and a circuit
breaker for over-current protection should be provided in the exclusive line.
The unit must be GROUNDED to prevent possible hazards due to insulation failures.
All wiring must be firmly connected.
All wiring must not touch the hot refrigerant piping, compressor or any moving parts of fan motors.
The field wires from the indoor unit must be clamped on the wire clamp as per shown in the figure.
18
4)
After evacuation, unscrew the spindle (diagram 2B) for the gas to run to indoor unit.
ADDITIONAL CHARGE
The refrigerant gas is charged in the outdoor unit and, if the piping length is less than 7.6m, additional charge of the
refrigerant after vacuuming is not necessary.
When the piping length is more than 7.6m, please use the table below:
Additional charge per meter
Model
AWMX 10/15 FR
R410A
20 g/m
20
11. Remote Controller Operation Guide
G8 REMOTE CONTROLLER
1
2
4
12
6
5
7
3
8
9
10
11
1. Transmission source
•
The source where the signal will be transmitted.
•
•
2. Signal Transmission indication
•
Blink to confirm the last setting has been send to
the unit.
9. Automatic air swing (Optional)
•
Press the SWING button to activate the automatic air swing
function.
•
To distribute the air to a specific direction, press the SWING
button and wait until the louver move to the desired direction and
press the button once again.
3. On/Off Button
•
Press once to start the air conditioner.
•
Press again to stop the unit.
4. Temperature setting
•
To set the desired room temperature, press the
button to increase or decrease the set
temperature.
•
The temperature setting range is from 16°C to
30°C (Optional setting 18°C to 30°C).
•
Press both buttons simultaneously to toggle the
temperature setting between °C and °F.
5. Operation mode
•
Press the MODE button to select the type of
operating mode.
•
For cooling only unit, the available modes are :
COOL, DRY & FAN.
•
For heat pump unit, the available modes are :
AUTO, COOL, DRY, FAN & HEAT.
6. Fan speed selection
•
Press the button until the desired fan speed is
achieved.
7. ON timer setting
•
Press the SET button will activate the on timer
function.
•
Set the desired on time by pressing the SET
button continuously. If the timer is set to 7.30am,
the air conditioner will turn on at 7.30am sharp.
•
Press the CLR button to cancel the on timer
setting.
Set the desired off time by pressing the SET button continuously.
Press the CLR button to cancel the off timer setting.
10. Sleep mode setting
•
Press the button to activate sleep mode. This function is available
under COOL, HEAT & AUTO mode.
•
When it is activated in COOL mode, the set temperature will be
increased 0.5°C after 30mins, 1°C after 1 hour and 2°C after 2
hours.
•
When it is activated in HEAT mode, the set temperature will be
decreased 1°C after 30mins, 2°C after 1 hour and 3°C after 2
hours.
11. Clock time setting
•
Press button + or – to increase or decrease the clock time.
12. Turbo function (optional – only applicable to inverter unit)
•
Press button for fast cooling or heating operation.
•
The temperature will be increased internally if it is in the HEAT
mode, decreased if in COOL or DRY mode. Fan speed will be
increased if it is not at maximum speed.
•
The temperature & fan speed will resume to user setting if the
button is pressed again or after 20mins.
•
Available under HEAT, COOL & DRY modes only.
8. OFF timer setting
•
Press the SET button will activate the off timer
function.
21
INDICATOR LIGHTS
IR Signal Receiver
Inverted Cooling Unit
When all infrared remote control operating signal has been
transmitted, the signal receiver on indoor unit will made
a (beep) sound to confirm acceptance of the transmitted
signal.
The table shows the LED indicator lights for the air
conditioner unit under normal operation and fault
conditions. The LED indicator lights are located at the
bottom right side of the air conditioner unit.
LED Indicator Lights : Normal Operation And Faulty Indication Table
Operation / Fault Indicator
{
{
{
{
{
{ ON
{
{/z ON or OFF
Action
Timer on
-
Sleep mode on
-
Dry mode
-
Compressor overload protection.
Call your dealer
Indoor temperature sensors contact
loose/ short.
Call your dealer
Outdoor temperature sensors
contact loose/ short.
Call your dealer
Gas leak/ compressor overhead.
Call your dealer
Communication error between
indoor and outdoor.
Call your dealer
Inverted error / PFC error
Call your dealer
Outdoor total current trip / DC peak.
Call your dealer
Indoor fan feedback error.
Call your dealer
Blinking
22
Inverted Heat Pump Unit
LED Indicator Lights For Inverter Heat Pump Unit
LED Display
The LED in indoor and outdoor unit indicate operation modes / faults detected.
Cool / Dry
Heat
Normal Operation / Fault Condition
Stand-by
Action
Timer
{
{/z
Cooling Mode
-
{
{/z
Dry Mode
-
Stand-by / Fan mode.
-
{/z
Heat Mode
-
{/z
Auto mode
-
{
{
{
Defrost operation
Compressor overload protection
Indoor temperature sensors contact loose /
short.
Outdoor temperature sensors contact loose /
short.
{ ON
{/z ON or OFF
Call your dealer
Call your dealer
Call your dealer
Gas leak / compressor overheat.
Call your dealer
Communication error between indoor and
outdoor.
Call your dealer
Inverter error / PFC errors.
Call your dealer
Outdoor total current trip / DC peak.
Call your dealer
Indoor fan feedback error.
Call your dealer
Blinking
23
12. Servicing And Maintenance
CAUTION:
After installing or servicing the unit,
please ensure that the front panel is
secured by the 1 hook underneath the
front panel.
The unit is designed to give a long life operation with minimum maintenance required. However, it should
be regularly checked and the following items should be given due attention.
Components
Maintenance Procedure
Recommended Schedule
Air Filters
1 . Clean with a vacuum cleaner, or by tapping lightly
and then washing in lukewarm water (below 40°C)
with neutral soap.
2. Rinse well to dry before re-installing.
3. Note: Never use petrol, thinner, benzene or any
other chemicals.
Every 2 weeks.
More frequently if required.
Indoor Unit
1.
Every 2 weeks
More frequently if required.
Condensate Drain
Pan and Pipe
1. Check and clean.
Every 3 months.
Indoor Fan
1. Check for unusual noise.
As necessary.
Indoor/Outdoor Coil
1. Check and remove dirt which are clogged
between fins.
2. Check and remove obstacles which hinder air flow
in and out of indoor/outdoor unit.
Every month.
Electrical
1. Check voltage, current and wiring.
2. Check faulty contacts caused by loose
connections, foreign matters, etc.
Every 2 months.
Every 2 months.
Compressor
1.
Every 6 months.
Compressor
Lubrication
1. Oil is factory charged. Not necessary to add oil if
circuit remains sealed.
Fan Motors
Lubrication
1. All motors pre-lubricated and sealed at factory.
Clean away dirt or dust on grille or panel by
wiping with a soft cloth soaked in lukewarm (or
cold) water or neutral detergent solution.
Note: Never use petrol, thinner, benzene or other
volatile chemicals, which may cause plastic
surface to deform.
No maintenance needed if refrigerant circuit
remains sealed. However, check for refrigerant
leak at joints and fittings.
24
Every month.
No maintenance required.
No maintenance required.
PRE-START UP MAINTENANCE
(AFTER EXTENDED SHUTDOWN)
-
Inspect thoroughly and clean indoor and outdoor units.
Clean or replace air filters.
Clean condensate drain line.
Clean clogged indoor and outdoor coils.
Check fan imbalance before operation.
Tighten all wiring connections and panels.
Check for refrigerant leakage.
The design of the ALC outdoor series allows servicing to be carried out readily and easily. The removal of
the top side, front and back panel make almost every part accessible.
Under normal circumstances, these outdoor units only require a check and cleaning of air intake coil
surface once quarterly. However, if a unit is installed in areas subjected to much oil mist and dust, the
coils must be regularly cleaned by qualified Air Conditioner Service Technicians to ensure sufficient heat
exchange and proper operation. Otherwise, the systems life span may be shortened.
CAUTION!
Do not charge OXYGEN, ACETYLENE OR OTHER FLAMMABLE and poisonous gases into the unit
when performing a leakage test or an airtight test. These gases could cause severe explosion and
damage if exposed to high temperature and pressure.
It is recommended that only nitrogen or refrigerant be charged when performing the leakage or
airtight test.
25
13. Troubleshooting
By means of pressure readings :
Too
High
A Little
High
Circuit
PROBABLE CAUSE
Normal
Too
Low
Data
A Little
Low
PRESSURE
1. Overcharged with refrigerant.
2. Non-condensable gases in refrigerant circuit (e.g. oil).
3. Obstructed air-intake/discharge.
4. Short circuiting of hot air at condensing unit.
1. Poor compression/no compression (compressor defective.)
2. Check valve stick in open position.
3. Reversing valve leaking.
1. Undercharged with refrigerant.
2. Refrigerant leakage.
3. Air filter clogged/dirty (indoor unit).
4. Indoor fan locked (cooling).
5. Defective defrost control, outdoor coil freezed up (heating).
6. Outdoor fan locked (heating).
1. Outdoor fan blocked (cooling).
2. Outdoor coil dirty (cooling).
3. Indoor fan locked (heating).
4. Indoor filter clogged/dirty (heating).
5. Non-condensable gases in refrigerant circuit (e.g. air).
1. Air intake temperature of indoor unit too high.
High Side
Low Side
High Side
Low Side
High Side
Low Side
High Side
Low Side
High Side
Low Side
BY MEANS OF DIAGNOSIS FLOW CHART
Generally, there are two kinds of troubles, i.e. starting failure and insufficient cooling/heating. "Starting
Failure" is caused by electrical defect while "Insufficient Cooling/Heating" is caused by improper
application or defects in refrigerant circuit.
1.
Diagnosis Of Electric Circuit
No Cooling / Heating
Unit fail to start
Check power supply
- voltage
- phase
- frequency
Check settings of remote control box
Check power source cord
Check circuit breake & fuse
Fan fails to start
Compressor fails to start
Fan Motor Capacitor defective
Thermostat setting too high
Loose Connections,
Contactors
Protection Device Actuated
Irregular motor resistance (Ω )
& insulation (M Ω )
Reset
Voltage supply not within range
Loose Connections,
Improper wiring
Compressor
Capacitor Defective
Check motor resistance ( Ω ) and insulation (M Ω )
Replace Fan Motor
Regular but fails
to start
Irregular
Compressor locked (to replace compressor)
Compressor Motor damaged ( to replace compressor)
26
The most common causes of air conditioner failure to "start" are :
a) Voltage not within +/- 10% of rated voltage.
b) Power supply interrupted.
c) Control settings improper
d) Air Conditioner is disconnected from main power source.
e) Fuse blown or circuit breaker off.
ii) Diagnosis Of Refrigerant Circuit /Application
There might be some cases where the unit starts running but does not perform satisfactory, i.e.
insufficient cooling. Judgement could be made by measuring temperature difference of indoor unit's
intake and discharge air as well as running current.
Insufficient Cooling
Unit Starts
Check air circulation
High cooling load
Refrigerant circuit
Indoor/Outdoor coil dirty
(clogged)
Air filters dirty
Fan Malfunction
Obstruction at air inlet/outlet
of indoor/outdoor unit
Leakage
Excessive heat
source e.g. electric
kettle
Restriction e.g. at
strainer, capillary,
filter dryer, etc.
Room overcrowded
with people
Compressor
Windows / doors
wide open
Less or no compression
(Low running current)
Satisfactory operation with temperature difference of
air intake & discharge of indoor unit 10°C - 15°C
Insufficient Heating
Unit Starts
Check air circulation
High heating load
Refrigerant circuit
Indoor/Outdoor coil dirty (clogged)
Leakage
Air filters dirty
Restriction e.g. at
strainer, capillary,
filter dryer, etc.
Fan Malfunction
Compressor
Obstruction at air inlet/outlet
of indoor/outdoor unit
Less or no compression
(Low running current)
Satisfactory operation with temperature difference of
air intake & discharge of indoor unit 16°C - 25°C
27
Windows / doors
wide open
14. Parts List
MODEL: AWMX 10FR / 15FR
1. ASSY. MOUNTING PLATE
10. BUSH, FAN
2. CLAMP. PIPING
11. ASSY. EVAPORATOR COIL
3. ASSY. CHASIS
12. ASSY. FRONT FRAME A
4. ASSY. FAN MOTOR
13. WASHER, INT TEETH STAR
5. ASSY. CONTROL BOX
14. SCREW, PAN HEAD MACHINED
6. ASSY. COVER CONTROL BOX
15. SCREW, SELF TAPPING ROUND HEAD
7. ASSY. AIR DISCHARGE HOUSING
16. SCREW, SELF TAPPING PAN HEAD
8. RIVET
9. FAN, CROSS FLOW
28
MODEL: A5LCX 10 / 15CR
1. ASSY. BASE PLATE
11. ASSY. PANEL RIGHT INS.
2. ASSY. CONDENSER COIL
12. BRACKET, MOTOR
3. RUBBER GROMMET
13. ASSY. CONTROL BOX
4. ASSY. TUBE 4WV
14. FAN, 16 INCH
5. ASSY. VALVE BRACKET
15. MOTOR, 5SLX15CR-501
6. ASSY. PARTITION
16. ASSY. CONTROL BOX
7. ASSY. CAPILLARY TUBE
17. ASSY. PLASTIC COVER INS.
8. HANDLING, HANDLE LEFT
18. TERMINAL BOX, COVER
9. ASSY. COMPRESSOR
19. COMPRESSOR, JACKET
10. ASSY. PANEL LEFT INS.
20. FILTER, DRYER
29
DOP:
While upmost care is taken in ensuring that all details in the publication are correct at time of going to press, we are constantly striving for
improvement and therefore reserve the rights to alter model specifications and equipment without prior notice. Details of specifications and
equipment are also subject to change to suit local conditions and equirements and not all models are available in every market.
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