Ceiling Convertible
Split Systems
ACM - E- 2007
ACM 15 E/ER
ACM 20 E/ER
ACM 25 E/ER
ACM 28 E/ER
A5CM 15 E/ER
A5CM 20 E/ER
A5CM 25 E/ER
A5CM 28 E/ER
Models:
TABLE OF CONTENTS
1. NOMENECLATURE ................................................................................................... 1
2. PRODUCT LINE-UP .................................................................................................. 3
3. FEATURES ................................................................................................................ 6
4. APPLICATION INFORMATION
- OPERATING RANGE .......................................................................................... 7
- REFRIGERANT CIRCUIT DIAGRAMS ............................................................... 8
- CONTROLLERS ................................................................................................ 14
- INSTALLATION .................................................................................................. 18
5. ENGINEERING AND PHYSICAL DATA
- GENERAL DATA ................................................................................................ 31
- COMPONENTS DATA........................................................................................ 45
- SAFETY DEVICES ............................................................................................. 59
6. PERFORMANCE DATA ............................................................................................ 63
- PERFORMANCE TABLES ................................................................................ 67
7. DIMENSIONAL DATA ............................................................................................... 87
8. ELECTRICAL DATA.................................................................................................. 89
9. WIRING DIAGRAMS................................................................................................. 97
10. SERVICING AND MAINTENANCE........................................................................ 108
11. TROUBLESHOOTING ........................................................................................... 110
12. EXPLODED VIEW & PARTS LIST ........................................................................ 115
Indoor
Others
A : First issue
Other Specifications
I : Ionizer Generator
N : Non Thermal Plasma
Controller
Specifications
G : Wireless handset
S : SLM3
N : Netware III
Market Region
C : Export with CE mark
Electrical
1. NOMENCLATURE
A : 220 - 240V/1Ph/50Hz
A CM 20
5
E
R
G IA C A-
Model Type
R : heatpump
Omitted if Cooling Only
Series
E : E series
Capacity
20 : 20,000 Btu/h
Model Name
CM : Ceiling Convertible
Refrigerant
5 : R410A
Omitted if R22 model
Brand
A : ACSON
1
Outdoor
Others
A : First issue
Specifications Variation
O : Standard unit I : Gold Fin
B : With Contactor L : Long Piping Unit
G : Low Ambient Unit S : With H/L Pressure Switch
H : High ambient unit X :Oxygen Unit
Compressor
P : Matsushita Rotary T : Toshiba Rotary
M :Mitsubishi Rotary
Market Region
C : Export with CE marking
E : Export without marking
U : ETL Spec.
Electrical
A : 220 - 240V/1Ph/50Hz
A LC 20 C R
5 P OA C A-
Model Type
R : heatpump
Omitted if Cooling
Series
C : C series
Capacity
20 : 20,000 Btu/h
Model Name
LC : Single Split Condensing unit
Refrigerant
5 : R410A
Omitted if R22 model
Brand
A : ACSON
2
2. PRODUCT LINE UP
INDOOR UNIT
ACM-E SERIES PRODUCT LINE UP
Classification
ACM
15E ACGIA X X X X X X
ACGIAX XX XX X
20E
ACGNAX XXXXX
ACGIAX XX XX X
25E
ACGNAX XXXXX
Cooling ModelHeat Pump Model
ACGIAX XX XX X
28E
ACGNA X X X X X X
15ERACGIAX XX XX X
ACGIAX XX XX X
20ER
ACGNAX XXXXX
ACGIAX XX XX X
25ER
ACGNAX XXXXX
ACGIAX XX XX X
28ER
ACGNAX XXXXX
A5CM-E SERIES PRODUCT LINE UP
Handset
Control Module
Nomenclature
L2
SLM3
Netware III
G12 Handset
Classification
Fin
Marking
NTP
Ionizer
CE Mark
W/out Marking
Hydrophilic (SLIT)
Control
Refrigerant
Cap. Tube
W/out Cap. Tube
Handset
NONMENCLATURE
Control Module
L2
SLM3
Netware III
G12 Handset
A5CM
15E ACGIA X X X X X X
ACGI A X X X X X X
20E
ACGNAX XXXXX
ACGI A X X X X X X
25E
ACGNAX XXXXX
Cooling ModelHeat Pump Model
ACGI A X X X X X X
28E
ACGNAX XXXXX
15ER ACGIA X X X X X X
ACGI A X X X X X X
20ER
ACGNAX XXXXX
ACGI A X X X X X X
25ER
ACGNAX XXXXX
ACGI A X X X X X X
28ER
ACGNAX XXXXX
Fin
Marking
NTP
Negative Ionizer
CE Mark
W/out Marking
Hydrophilic (SLIT)
3
Cap. Tube
Control
Refrigerant
W/out Cap.Tube
4
OUTDOOR UNIT
ALC-C SERIES PRODUCT LINE UP
Grille
Cap. Tube
TXV
Gold Fin
High Ambient Kit
Low Ambient Kit
Contactor
High Pressure Switch
Low Pressure Switch
Nantong Press. SW
Phase Sequencer
Drain Elbow
Copeland Scroll Comp.
Rotary
CE Marking
ETL
ACPO D X X X
ACPID X X X X
ACPBD X X X X
ACPYD X X X X X
ACPO D
XXX
ACPID
XX XX
ACPO D
XXX
ACPID
XX XX
ACPO D
XXX
ACPID
XX XX
ACPOA
XX
ACPIA
XXX
AFGE XXXX X X
AFGF X X X X X X X
AFGG X X X X X X X
FFGE XXXXX X X
FFGG X XXXXX X X
ACPO B X X X
ACPIB X X X X
ACPO D X X X
ACPID X X X X
ACPO D
XXX
ACPID
XX XX
ACPO D
XXX
ACPID
XX XX
ACPOA
XXX
ACPIA
XX XX
AFFB XX XX X XX X
AFFCXXXXXXXXX
AFFD XXX XX X XX X
FFFB XX XX XXXX X
FFFD XXX XX XXXX X
25C
28C
15CR
18CR
30CR
28CR
20CR
Safety Devices
Classification
Marking
Refrigerant
Ctrl + Fin
Compressor
25CR
Special
30C
Nomenclature
ALC
18C
20C
Cooling Model
15C
Heat Pump Model
5
OUTDOOR UNIT
A5LC-C SERIES PRODUCT LINE UP
Grille
Cap. Tube
TXV
Gold Fin
High Ambient Kit
Low Ambient Kit
Contactor
High Pressure Switch
Low Pressure Switch
Nantong Press. SW
Phase Sequencer
Drain Elbow
Copeland Scroll Comp.
Rotary
CE Marking
ETL
15C ACPOC X X X
ACPI A X X X X
ACPOA X X X
FCPOC X X X X
FCPIC X X X X X
ACPI A X X X X
ACPOA X X X
FCPOC X X X X
PCPIC X X X X X
ACPOA X X X
ACPI A X X X X
FCPOA X X X X
FCPIA X X X X X
ACCOAXX XXX X X
ACCIA XXX XXX X X
FCCOAXX XXXXX X X
15CR ACPOC X X X
ACPI A X X X X
ACPOC X X X
FCPOC X X X X X
FCPIC X X X X X X
ACPI A X X X X
ACPOC X X X
FCPOC X X X X X
FCPIC X X X X X X
ACPOA X X X
ACPI A X X X X
FCPOA X X X X X
FCPIA X X X X X X
ACCOAXX XXX X X
ACCGAXXX XXX X X
FCCOAXX XXXXXXX X
FCCGAXXX XXX XXX X
20CR
25CR
28CR
Heat Pump Model
35CR
Classification
Marking
Refrigerant
Ctrl + Fin
Special
Compressor
Safety Devices
Nomenclature
A5LC
Cooling Model
20C
25C
28C
35C
3. FEATURES
Ceiling And Floor Installation Option
The unit is uniquely designed with the option to install either below the ceiling or mounted at low wall position
without any modification needed. Furthermore, the unit is design adds a touch of elegance to suit any interior
design requirement
Excellent Air Distribution
The louver with automatic air swing function fully optimize the room comfort by enables the air flow to be
evenly distributed into the room from the front discharge area.
Negative Ion Generator
ACSON emphasis on provide indoor air quality solution. Therefore, the negative ionizer technology is being
brought in as an essential part of the unit. The negative ion generator increases the amount of negative ion in
the air-conditioning area, creating a refreshing and healthy living environment.
Easy Installation
The ceiling convertible fan coil unit is easily installed with a very economical and space saving installation. No
need renovation on wall or ceiling for installation. This easy to install and ready to operate unit ensure rapid
and low installation cost.
Magnificent Serviceability
The blower, fan motor assembly and electrical parts can be inspected and air filter can be accessed by pulling
down the air intake grille. During servicing or repairing, only the bottom panel needs to be removed in order to
access the fan motor, blower, control box piping connection and drain pan.
Wireless Remote Controller
The standard unit comes with a simple, user friendly and stylish wireless controller. The G12 controller offers
many features:
• The compact LCD transmitter is able to operate the indoor unit within 9 meters of distance.
• Fan speed can be set at low/medium/high or automatic.
• Sleep mode auto control will gradually increase or decrease the set temperature to provide a comfort-
able surrounding for sleeping.
• The real time timer allows the unit to be switched ON and OFF automatically based on user settings.
• Ionizer or non-thermal plasma is available to create better air quality.
• Turbo mode function is available to enables the required set temperature to be achieved in a short time.
• Personalized Setting allows user to preset and store 2 groups of personal settings (including timer
setting) in the handset.
Auto Random Restart
Auto random restart function allows the unit to automatic restart as the last setting condition when the power
supply is resumed after power failure. However, the compressor will restart randomly if more than one unit is
installed and sharing the same phase of power.
Self Diagnosis
The microprocessor provides the possibility to detect and diagnose any fault or malfunction that occurs in the
system. The error will be reflected by the blinking of the LED lights.
6
4. APPLICATION INFORMATION
Operating Range
Ensure the operating temperature is in allowable range.
Cooling only
Heatpump
54
46
35
19
Outdoor temp. (°CDB)
-5
18
6
High ambient
unit
Standard
point
Low ambient kit
15
24
Indoor temp. (°CWB)
Heating
Standard
point
Caution :
The use of your air conditioner
outside the range of working
temperature and humidity can
result in serious failure.
Cooling
54
46
35
19
High ambient
un t
Standard
point
Note :
Outdoor temp. (°CWB)
-9
15 21
27
Indoor temp. (°CDB)
Standard operating range.
With High ambient unit. (Optional item)
Please refer to local dealer for unit of this specification.
With Low ambient kit. (Optional item)
Please refer to local dealer for unit of this specification.
7
Outdoor temp. (°CDB)
-5
Low ambient kit
15
24
Indoor temp. (°CWB)
Refrigerant Circuit Diagrams
MODEL : ACM / A5CM 15E - ALC / A5LC 15C ACM 20E - ALC 18C
ACM / A5CM 20E - ALC / A5LC 20C A5CM 25E - A5LC 25C
MODEL : ACM 25E - ALC 25C
A5CM 28E - A5LC 28C
8
MODEL : ACM 28E - ALC 28C
MODEL : ACM 28E - ALC 30C
9
MODEL : A5CM 28E - A5LC 35C
MODEL : ACM / A5CM 15ER - ALC / A5LC 15CR
10
MODEL : ACM / A5CM 20ER - ALC / A5LC 20CR
A5CM 25ER - A5LC 25CR
MODEL : ACM 25ER - ALC 25CR ACM 28ER - ALC 28CR
11
MODEL : A5CM 28ER - A5LC 28CR
MODEL : ACM 28ER - ALC 30CR
12
MODEL : A5CM 28ER - A5LC 35CR
13
Controllers
G12 Remote Controller
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
• Press both buttons simultaneously
to toggle the temperature setting
between °C and °F
On/Off Button
• Press Once to start the air
conditioner
• Press again to stop the unit
ON Timer Setting
• Press the SET button will activate
the on timer function.
• Set the desired on time by pressing
the SET button continuously.
• Press the CLR button to cancel the
off timer setting
Personalised Setting
• Press and hold the button for 3s to
initiate personalized setting.
• Set the individual setting e.g.
MODE, SET TEMP or FAN SPEED
and leave for 4s to save
• 2 groups of settings are allowed to
stored in the handset
OFF Timer Setting
• Press the SET button will activate
the off timer function.
• Set the desired off time by
pressing the SET button
continuously.
• Press the CLR button to cancel the
off timer setting
Clock Time Setting
• Press button + or - to increase or
decrease the clock time.
Fan Speed Selection
• Press the button until the desired
fan speed is achieved.
Turbo Mode
• Press the TURBO button to
achieve the required set
temperature in a short time.
Automatic Air Awing
• Press the SWING button to activate
the automatic air swing function.
• To distr bute 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.
Ionizer
• Press the button to activate the
negative Ion function, which will
refresh the indoor air effectively.
Sleep Mode
• 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.
Operating Mode
• Press the MODE button to select
the type of operating mode.
• For Cooling only unit, the available
modes are: COOL, DRY & FAN.
• For Heatpump unit, the available
modes are: AUTO, COOL, DRY,
FAN & HEAT.
14
15
1. “ON/OFF” switch
• Press to start the air conditioner unit.
• Press again to stop the unit.
2. Temperature setting
• Set the desired room temperature.
• Press button to increase or decrease the set
temperature. Setting range are between 16°C
to 30°C (60°F to 80°F).
3. Operation Modes
• Press the “mode” button for select the type of
operating mode.
- Cooling Only :
COOL, DRY, FAN
- Heat Pump :
AUTO, COOL, DRY, HEAT, FAN
(AUTO mode is represented by bothCOOL and
HEAT LED light on)
4. Fan Speed selection
• Press the button until the desired fan speed is
achieved.
5. Timer
• Press the set button to select the switch timer
of the air conditioner unit (the setting range is
between 1 to 10 hours).
6. “Sleep” mode
• Press button to activate the sleep function can
only be activated under “cool” or heating mode
operation. When it is activated under “cool”
mode operation, the set temperature will
increase 0.5°C after 30 minutes, 1°C after 1 hour
and 2°C after 2
hours. If it is actiaved under
“HEAT” mode operation, the set temperature
will be descreased 0.5°C after 30 minutes, 1°C
after 1 hour and 2°C after 2 hours.
7. Air Swing
• Press button to activate the automatic air swing
function.
8. Sensor
• Infra red sensor to receive signals from wireless
controller.
9. LED Display
• To display the set temperature (in °C) and timer
delay setting (in hours).
10. Transmission source
• To transmit signals to the air conditioner.
SLM AC-5300 (OPTIONAL)
Operating State and Fault Table
Wireless Remote Control – Handset
LED Indicator Light Display
Cooling Only Heatpump
COOL
COOL DRY FAN HEAT
DRY
|
|
|
|
|
|
FAN
Normal Operation / Fault Indication
Cool mode
Heat mode
Dry mode
Fan mode
Auto mode in cooling operation
Auto mode in heating operation
Room air sensor open or short
Indoor coil sensor open or short
Outdoor coil sensor open or short
Compressor overload / indoor coil sensor short / outdoor coil sensor short
COOL
DRY
FAN
HEAT
| - ON
Gas leak
- Blinking
16
17
Wired Remote Control – SLM
Cooling / Heatpump Model
Error Code at 7 Segment Display Operation / Faulty Indication
Blink E1 Room sensor open or short
Blink E2 Indoor coil sensor open
Blink E3 Outdoor coil sensor open
Compressor overload /
Indoor coil sensor short /
Outdoor coil sensor short
Blink E5 Gas leak
Blink E6 Water pump faulty
Blink E4
Phase Sequencer
LED_P LED_R LED_S LED_T
(Red) (Yellow) (Yellow) (Yellow)
Normal Operation
On---
Reverse Phase
Blink Blink Blink Blink
S & T Phase Missing
Blink - Blink Blink
T Phase Missing
Blink - - Blink
S Phase Missing
Blink - Blink -
R Phase Missing
----
Overload
Blink - - -
Sensor Missing
BlinkOnOnOn
Notes: 1. “-” means LED off.
2. When R phase missing, no LED or buzzer will indicate the error, but relay 71 (Common) and 81
(NO) will cut off.
3. The unit will check the discharge sensor availability only during power up.
4. All errors can only recover through manually reset.
Installation
Caution
Sharp edges and coil surfaces are potential injury hazard. Avoid from contact with them.
(1) Installation of Indoor Unit
Preliminary Site Survey
• Electrical supply and installation is to confirm to local authority's (e.g. National Electrical Board) codes and
regulations.
• Voltage supply fluctuation must not exceed ± 10% of rated voltage. Electricity supply lines must be indepen-
dent of welding transformers which can cause high supply fluctuation.
• Ensure that the location is convenient for wiring, piping and drainage.
Standard Mounting
Ensure that the overhead supports are strong enough to hold the weight of the unit. Position the hanger rods
(wall mounting bracket for floor standing), and check for its alignment with the unit as shown in Figure A. Also,
check that the hangers are secured and the base of the fan coil unit is leveled in both horizontal directions,
taking into account the gradient for drainage flow as recommended in Figure B.
Figure A
18
19
Please ensure that the following steps are taken:
• Check the gradient for drainage flow as recommended in Figure B.
• Provide clearance for easy servicing and optimal air flow as shown in Figure C.
• The indoor unit must be installed such that there is no short circuit of the cool discharge air with the warm
return air.
• Don not install the indoor unit where there is direct sunlight shining on the unit. The location should be
suitable for piping and drainage installation. The unit must be a large distance away from the door.
Figue B
Figue C
Under ceiling type
Floor standing type
Under Ceiling Installation
Install the Suspension Bolts
1. Install the suspension bolts so that it can support the indoor unit.
2. Adjust the distance to ceiling before installation.
3. Refer to the dimension given (Figure A) to install the unit.
Install the Indoor Unit
1. Insert the suspension bolts into the fittings of the hanger bracket.
2. Set the nuts and washer on the both side of the metal fittings.
3. Secure it with nuts.
4. Attach the hanger cover (4 pcs) to the units.
20
Floor standing installation
1. Refer to the dimension as illustrated when installing the mounting bracket.
2. Determine the pipe hose position using the rear piping hole. Drill the pipe hole at the slight downward slant
to the outdoor side.
21
22
Piping and Drain Hose Installation
Under Ceiling Type
1. The piping direction can be 2 ways as illustrated.
2. The drain hose is only 1 way.
Floor standing type
How to Install the Drain Hose
1. Remove the 2 screws and the drain pipe holder.
2. Cut a slit for the drain hose hole.
3. Place the drain hose on the v-shape area and secure it with drain pipe holder and 2 screws.
OR
OR
How to Remove the Air Inlet Grille
1. Remove the air inlet grille by both hands as the direction shown.
2. Loosen the screws for fixing the panel arm (3 screws - Left, Right and Center). Do not remove the
screws at this time.
3. Move the air inlet grille upward, and then turn it backwards. (Do not use too much force).
4. Remove the grille holder (both left and right side). After that, remove the air intake grille.
5. Remove the grille holder (center) from the panel.
23
How to install the air filter
To Adjust the Vane Direction
Adjust the vane linkage as the direction shown to get the required vane direction.
Dimension of the Fresh Air Intake Hole
24
(2) Installation Of 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 a way 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 (max. 45°C)
ALL MODELS A B C D
Minimum Distance 300 mm 1000 mm 300 mm 500 mm
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.
25
26
(3) Refrigerant Piping
Maximum Piping Length And Maximum Number Of Bends
When the pipe length becomes too long, both the capacity and reliability drop. As the number of bends increases, system piping resistance to the refrigerant flow increases, thus lowering the cooling capacity, and as
the result the compressor may become defective. Always choose the shortest path and follow the recommendation as tabulated below:
Piping Sizes (Flare Connection Type)
Piping sizes are as follows:
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 torque wrench unit the wrench clicks.
• When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow on
the wrench.
Pipe Size (mm/in) Torque (Nm)
6.35 (1/4) 18
9.52 (3/8) 42
12.70 (1/2) 55
15.88 (5/8) 65
19.05 (3/4) 78
R22
R410A
Indoor 15E/ER 20E/ER 25E/ER
Outdoor 15C/CR 18 / 20C/CR 25C/CR 28C/CR 30 / 35C/CR
12 15 15 15 45
588825
10 10 10 10 10
Maximum No. of Bends
Model
28E/ER
Maximum Length, m
Maximum Elevation, m
Model
ALC 15C/CR ALC 18/20C/CR ALC 25C/CR ALC 28C/CR ALC 30C/CR
Liquid (mm/in)
6.35 / 1/
4
6.35 / 1/
4
9.52 / 3/
8
9.52 / 3/
8
9.52 / 3/
8
Suction (mm/in)
12.70 / 1/
2
15.88 / 5/
8
15.88 / 5/
8
15.88 / 5/
8
15.88 / 5/
8
Model
A5LC 15C/CR A5LC 20C/CR A5LC 25C/CR A5LC 28C/CR A5LC 35C/CR
Liquid (mm/in)
6.35 / 1/
4
6.35 / 1/
4
6.35 / 1/
4
9.52 / 3/
8
9.52 / 3/
8
Suction (mm/in)
12.70 / 1/
2
12.70 / 1/
2
15.88 / 5/
8
15.88 / 5/
8
15.88 / 5/
8
27
(4) Wiring
Electrical Connections
• Wiring regulations on wire diameters differ from country to country. Please refer to your LOCAL ELECTRI-
CAL CODES for field wiring rules. Be sure that installations comply with the 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 disconnects 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.
(5) Vacuuming And Charging
The pre-charged outdoor unit does not need any vacuuming or charging. However once it is connected, the
connecting pipe line and the indoor unit need to be vacuumed before releasing the R22/R407C/R410A from
the outdoor unit.
1. Open the service port core cap.
2. Connect pressure gauge to the service port.
3. Connect the line to vacuum pump. Open the charging manifold valve and turn the pump on. Vacuum to -
0.1 MPa (-760mmHg) or lower. (Evacuation time varies by the pump but averagely in 1 hour).
Note : R407C – Fix filter dryer
R22 - Nil
R410A - Nil
(6) Additional Charge
• The refrigerant charge has already charged into the outdoor unit. For the piping length of 7.6m, additional
refrigerant charge after vacuuming is not necessary.
• When the piping length is more than 7.6m, please use the table below (unit in gram).
The additional refrigerant charge amount recommended is a guideline for longer piping application. The actual
charge required may be different from the guideline due to different application and variation in site conditions.
Model 10m 12m 15m 25m 35m 45m
ALC 15C/CR 37 / 57 68 / 104 - - - -
ALC 18C/CR 38 / 54 70 / 98 118 / 166 - - -
ALC 20C/CR 38 / 53 70 / 96 118 / 162 - - -
ALC 25C/CR 94 / 53 172 / 98 289 / 164 - - -
ALC 28C/CR 94 / 133 172 / 244 291 / 411 - - -
ALC 30C/CR 133 / 133 244 / 243 410 / 409 964 / 961 1518 / 1514 2072 / 2067
Model 10m 15m 20m 25m 35m 45m
A5LC 15C/CR 20 / 39 37 / 71 - - - -
A5LC 20C/CR 24 / 40 44 / 73 74 / 123 - - -
A5LC 25C/CR 24 / 23 45 / 43 75 / 72 - - -
A5LC 28C/CR 58 / 91 106 / 167 178 / 281 - - -
A5LC 35C/CR 65 / 98 118 / 180 199 / 303 469 / 712 738 / 1122 1007 / 1531
28
Diagram shows typical charging method:
(7) Overall Checking
• Ensure the following, in particular:
1. The unit is mounted solidly and rigid in position.
2. Piping and connections are leak proof after charging.
3. Proper wiring has been done.
• Drainage check – pour some water into drain pan.
• Test run
1. Conduct a test run after water drainage test and gas leakage test.
2. Watch out for the following:
(a) Is the electric plug firmly inserted into the socket?
(b) Is there any abnormal sound from the unit?
(c) Is there any abnormal vibration with regard to the unit itself or piping?
(d) Is there smooth drainage of water?
• Check that:
1. Outdoor fan is running, with warm air blowing off the outdoor unit (cooling cycle).
2. Indoor blower is running and discharge cool air (cooling cycle).
3. Suction (low side) pressure is as per recommendations.
4. The remote controller has incorporated a 3 minutes delay in the circuit. Thus, it requires about 3
minutes before the outdoor unit can start up.
(8) Standard Operating Condition
Note : R407C – Fix filter dryer
R22 - Nil
R410A - Nil
Cooling Only Unit
Temperature
T
s
˚C / ˚FT
h
˚C / ˚F
Minimum Indoor Temperature 19.4 / 66.9 13.9 / 57.0
Maximum Indoor Temperature 26.7 / 80.1 19.4 / 66.9
Minimum Outdoor Temperature 19.4 / 66.9 13.9 / 57.0
Maximum Outdoor Temperature 46 / 114.8 24 / 75.2
Heat Pump Unit
Temperature
T
s
˚C / ˚FT
h
˚C / ˚F
Minimum Indoor Temperature 10 / 50 -
Maximum Indoor Temperature 26.7 / 80.1 -
Minimum Outdoor Temperature -8 / 17.6 -9 / 15.8
Maximum Outdoor Temperature 24 / 75.2 18 / 64.4
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