Models:
ACK/A5CK 20E/ER
ACK/A5CK 25E/ER
ACK/A5CK 28E/ER
ACK/A5CK 40E/ER
ACK/A5CK 50E/ER
ACK - E - 2009
Ceiling Cassette Split Systems
ACK-E-2009 Table of Contents
Table of Contents
Nomenclature......................................................................................................................1
Indoor Unit .....................................................................................................................1
Outdoor Unit ..................................................................................................................2
Product Line-Up .............................................................................................................3
Features.............................................................................................................................10
Application Information ................................................................................................... 11
Operating Range ......................................................................................................... 11
Refrigerant Circuit Diagram .........................................................................................12
Controller ....................................................................................................................17
Installation Guideline ...................................................................................................20
Sound Data ........................................................................................................................33
Sound Pressure Level .................................................................................................33
NC Curve .....................................................................................................................34
Engineering & Physical Data ........................................................................................... 37
General Data ...............................................................................................................37
Component Data .........................................................................................................53
Safety Devices ............................................................................................................69
Performance Data ............................................................................................................. 74
Calculation Steps .........................................................................................................75
Performance Table ......................................................................................................78
Outline and Dimension ..................................................................................................102
Electrical Data ................................................................................................................. 104
Wiring Diagram ............................................................................................................... 112
Service and Maintenance...............................................................................................121
Troubleshooting .............................................................................................................123
Exploded View and Part List .........................................................................................129
“Acson” is a registered trademark of Acson International. All rights reserved.
© 2009 Acson International. All rights reserved throughout the world.
Bulletin illustrations cover the general appearance of Acson International products at the time of publication.
We reserve the right to change design and construction specifi cations at any time without notice.
Nomenclature ACK-E-2009
Nomenclature
Indoor
A 5 CK 20 E R
Brand
A : Acson
Refrigerant
“ “
4
5
Model Name
CK : Ceiling Cassette
: Omitted if R22
: R407C
: R410A
Capacity Index
20 : 20,000 Btu/h
Chassis
E : E Series
Model Type
“ “
R
: Omitted if cooling only
: Heatpump
1
ACK-E-2009 Nomenclature
Outdoor
A 5 LC 20 C R
Brand
A : Acson
Refrigerant
“ “
4
5
Model Name
LC : Single Split Condensing Unit
Capacity Index
20 : 20,000 Btu/h
: Omitted if R22
: R407C
: R410A
Chassis
E : E Series
Model Type
“ “
R
: Omitted if cooling only
: Heatpump
2
Product Line-Up ACK-E-2009
Product Line-Up
Indoor Unit
ACK-E Series
Classifi cation
Model
Nomenclature
20E ACOBA X X X X X X
25E ACOBA X X X X X X
28E ACOBA X X X X X X
40E ACOBA X X X X X X
COOLING ONLY
50E ACOBA X X X X X X
20ER ACOBA X X X X X X
25ER ACOBA X X X X X X
28ER ACOBA X X X X X X
40ER ACOBA X X X X X X
HEATPUMP
50ER ACOBA X X X X X X
PCB
L2 08A
G18
Handset
Fin
Refrigerant Control
Bare
Cap Tube
W/out Cap Tube
Air Purifi cation
Marking
CE
Others
Auto Air Swing
3
ACK-E-2009 Product Line-Up
Indoor Unit
A5CK-E Series
Classifi cation
Model
Nomenclature
20E ACOBA X X X X X X
25E ACOBA X X X X X X
28E ACOBA X X X X X X
40E ACOBA X X X X X X
COOLING ONLY
50E ACOBA X X X X X X
20ER ACOBA X X X X X X
25ER ACOBA X X X X X X
28ER ACOBA X X X X X X
40ER ACOBA X X X X X X
HEATPUMP
50ER ACOBA X X X X X X
PCB
L2 08A
G18
Handset
Fin
Refrigerant Control
Bare
W/out Cap Tube
Air Purifi cation
Marking
CE
Others
Auto Air Swing
4
Product Line-Up ACK-E-2009
Indoor Unit
ACK Panel Product Line Up
Classifi cation
Model
COOLING
Handset
Nomenclature
G18
PLCKE-NG18 X X X
ONLY
PLCKER-NG18 X X X
HEATPUMP
CE
Marking
Others
Auto Air Swing
5
ACK-E-2009 Product Line-Up
Outdoor Unit
ALC
Classifi cation
Model
20C
25C
Refrigerant Control
Nomenclature
TXV
Cap Tube
ACPOD X X X X
ACPID X X X X
ACPHB X X X X X
ACPBD X X X X X
ACPOD X X X X
ACPID X X X X
ACPBD X X X X X
ACPHB X X X X X
ACPSD X X X X X
ACHOB X X X
Fin
Gold Coated
Bare
Compressor
Scroll / Digital Scroll
Rotary / Fixed Scroll
Contactor
High Pressure Switch
Safety Devices
Low Pressure Switch
Phase SequencerCEHigh Ambient Kit
Marking
Others
Drain Elbow
28C
35C
COOLING ONLY
40C
50C
ACHIB X X X
ACHBB X X X X
AFGE X X X X X X
AFGG X X X X X X
AFGE X X X X X X
AFGG X X X X X X
FFGE X X X X X X X
FFGF X X X X X X X X
FFGG X X X X X X X
FFGL X X X X X X X
AUCOA X X X X X X
FUDOA X X X X X X
FFGN X X X X X
FFGP X X X X X X X X
FFGQ X X X X X X X
FFGT X X X X X X X X
FUDOA X X X X X X
6
Product Line-Up ACK-E-2009
Outdoor Unit
ALC
Classifi cation
Model
20CR
25CR
28CR
35CR
HEATPUMP
Refrigerant Control
Nomenclature
TXV
Cap Tube
ACPOD X X X X
ACPID X X X X
ACPHB X X X X X
ACPOD X X X X
ACPID X X X X
ACPHB X X X X X
ACHOB X X X
ACHIB X X X
AFFB X X X X X X X X
AFFD X X X X X X X X
Fin
Gold Coated
Bare
Compressor
Scroll/ Digital Scroll
Rotary/ Fixed Scroll
Contactor
High Pressure Switch
Safety Devices
Low Pressure Switch
Phase SequencerCEHigh Ambient Kit
Marking
Others
Drain Elbow
AFFB X X X X X X X X
AFFD X X X X X X X X
40CR
FFFB X X X X X X X X X
FFFD X X X X X X X X X
FFFF X X X X X X X X X
50CR
FFFG X X X X X X X X X
7
ACK-E-2009 Product Line-Up
Outdoor Unit
A5LC
Classifi cation
Model
20C
25C
28C
Refrigerant Control
Nomenclature
TXV
Cap Tube
ACPIC X X X X
ACPOC X X X X
FCPOC X X X X X X
ACPIC X X X X
ACPOC X X X X
FCPOC X X X X X X
ACPOA X X X X
ACPIA X X X X
FCPOA X X X X X X
ACCOB X X X X X X X
Fin
Gold Coated
Bare
Compressor
Scroll/ Digital Scroll
Rotary/ Fixed Scroll
Contactor
High Pressure Switch
Safety Devices
Low Pressure Switch
Phase Sequencer
Marking
CE
Others
Drain Elbow
ACCGB X X X X X X X
35C
COOLING ONLY
FCCOB X X X X X X X X
FCCGB X X X X X X X X
FCCGB X X X X X X X X
FCCOB X X X X X X X X
40C
ACCOB X X X X X X X
ACCGB X X X X X X X
FCCOB X X X X X X X X
50C
FCCGB X X X X X X X X
8
Product Line-Up ACK-E-2009
Outdoor Unit
A5LC
Classifi cation
Model
20CR
25CR
28CR
Refrigerant Control
Nomenclature
TXV
Cap Tube
ACPIC X X X X
ACPOC X X X X
FCPOC X X X X X X
ACPIC X X X X
ACPOC X X X X
FCPOC X X X X X X
ACPOA X X X X
ACPIA X X X X
FCPOA X X X X X X
ACCOB X X X X X X X
Fin
Gold Coated
Bare
Compressor
Scroll / Digital Scroll
Rotary / Fixed Scroll
Contactor
High Pressure Switch
Safety Devices
Low Pressure Switch
Phase Sequencer
Marking
CE
Others
Drain Elbow
HEATPUMP
35CR
40CR
50CR
ACCGB X X X X X X X
FCCOB X X X X X X X X
FCCGB X X X X X X X X
ACCGB X X X X X X X
ACCOB X X X X X X X
FCCOB X X X X X X X X
FCCGB X X X X X X X X
FCCOB X X X X X X X X
FCCGB X X X X X X X X
9
ACK-E-2009 Features
Features
Improved Sound Level
The new ACK-E series is equipped with a newly-developed turbo fan, which has improved the sound pressure
level of the unit signifi cantly.
Lower Height Model
To ease installation, the overall height of the ACK-E series has been greatly reduces. (350mm for ACK-E,
290mm for ACK 20-28E/ER, 325mm for ACK 40-50E/ER).
Multi-Comfort – 3 Air Swing Pattern Control
To increase the comfort level of the air conditioned area of ACK-E series, the system had been built in with 3
different type of the air fl ow pattern to suit different requirement.
Built-in High Head Drain Pump
The unit has a built-in high head drain pump (with 700 mm drain head) to provide and ensure smoothness
drainage of condensate water.
Wireless Remote Controller
The compact LCD transmitter is able to operate the air conditioner unit within the distance of 8 meters.
•
Fan speed can be set at high / medium / low / super low or automatic.
•
Sleep mode auto control will gradually increase or decrease the setting temperature to provide a
•
comfortable surrounding for sleeping.
Air fl ow direction can be controlled automatically.
•
Room temperature is controlled by electronic thermostat.
•
The real time timer allows the air conditioner to be switched On and Off automatically based on user
•
settings.
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.
10
Application Information ACK-E-2009
Application Information
Operating Range
Ensure the operating temperature is in allowable range.
Cooling only
46
35
19
Outdoor temp. (°CDB)
Standard
point
! Caution :
The use of your air conditioner
outside the range of working
temperature and humidity can
result in serious failure.
Heat Pump
Outdoor temp. (°CWB)
15
Indoor temp. (°CWB)
Heating
18
6
-9
Standard
15 21
Indoor temp. (°CDB)
Note :
Standard operating range.
point
24
Cooling
46
35
19
Standard
point
Outdoor temp. (°CDB)
37
15
24
Indoor temp. (°CWB)
11
ACK-E-2009 Application Information
Refrigerant Circuit Diagram
Model: ACK 20E - ALC 20C A5CK 25E - A5LC 25C
A5CK 20E - A5LC 20C
Model: ACK 25E - ALC 25C
A5CK 28E - A5LC 28C
70034 095231
70034 049972
12
Application Information ACK-E-2009
Model: ACK 28E - ALC 28C
Model: ACK 40E - ALC 35/40C
ACK 50E - ALC 50C
70034 049972
13
70034 049181
ACK-E-2009 Application Information
Model: A5CK 40E - A5LC 35/40C
A5CK 50E - A5LC 50C
Model: ACK/A5CK 20ER - ALC/A5LC 20CR
A5CK 25ER - A5LC 25CR
70034 097007
70034 095238
14
Application Information ACK-E-2009
Model: ACK 28ER - ALC 28CR
Model: ACK/A5CK 28ER - ALC/A5LC 28CR
70034 049972
15
70034 049181
ACK-E-2009 Application Information
Model: ACK 30ER - ALC 30CR
ACK 40ER - ALC 35/40CR
ACK 50ER - ALC 50CR
Model: A5CK 40ER - A5LC 35/40CR
A5CK 50ER - A5LC 50CR
70034 095246
08014 085116
16
Application Information ACK-E-2009
Controller
G18
1
2
3
4
15
14
13
12
11
10
5
6
7
8
9
Operation Guide
1 Transmission Source
The source where the signal will be transmitted.•
2 Signal Transmission Indication
Blink to confi rm that the last setting has been transmitted
•
to the unit.
3 Temperature Setting
To set the desired room temperature, press the ▲ or ▼
•
button to increase or decrease the set temperature.
The temperature setting range is from 16°C to 30°C
•
(optional setting 20°C to 30°C).
4 Personalize Setting
Press
•
•
•
•
5 Automatic Air Swing (optional)
•
•
6 Silent Function
•
•
•
7 Sleep Mode Setting
•
•
•
and hold for 3s, then will blink. Press again to
cycle between and .
Set the desire setting, then leave the handset for 4s
without pressing any key and it will save the setting into the
programme.
Press once to activate the P1 setting, press again to
cycle between P1 and P2.
Press any key to deactivate the personalize setting.
Press the SWING
button to activate the automatic air
swing function.
To distribute the air to a specifi c direction, press the
SWING button and wait until the louver move to the
desired direction and press the button once again.
Press
for quiet operation.
Fan speed turn to minimum speed.
Press again to deactivate the function.
Press the SLEEP button will activate the sleep mode
function. This function is available under COOL, HEAT and
AUTO mode.
When the unit is operating under cooling mode, the set
temperature is increased by 0.5°C after 30 minutes, 1°C
after an hour, and 2°C after 2 hours.
When the unit is operating under heating mode, the set
temperature is decreased by 1°C after 30 minutes, 2°C
after an hour, and 3°C after 2 hours.
8 Operating Mode
Press the MODE button to select the type of operating
•
mode.
For cooling only unit, the available modes are: COOL (7),
•
DRY (6) and FAN (
).
9 Fan Speed Selection
Press the
•
button continuously will toggle the fan speed
in the following order:
Low B Med B High B Auto
Stop pressing when the desired fan speed appears on the
•
display screen.
10 “ON/OFF” Button
Press one to start the air conditioner unit.
•
Press again to stop the unit.
•
11 Timer Cancel
Press the TIMER CANCEL button to cancel the on timer
•
setting.
12 OFF Timer Setting
Press the OFF TIMER button will activate the off timer
•
function.
Set the desired off time by pressing the OFF TIMER button
•
continuously.
13 ON Timer Setting
Press the ON TIMER button will activate the on timer
•
function.
Set the desired on time by pressing the ON TIMER
•
button continuously. If the timer is set to 7.30am, the air
conditioner will turn on at 7.30am sharp.
14 Turbo Function
Press
•
Fan speed turn to maximum speed.
•
Press again to deactivate the function.
•
for fast cooling.
15 Clock Time Setting
Press
and hold to set the clock time.•
17
ACK-E-2009 Application Information
Operating State and Fault Table
Wireless Remote Control
Cooling : LED Indicator Light Display Heatpump : LED Indicator Light Display
POWER TIMER SLEEP
POWER TIMER SLEEP
1 Time
2 Times
3 Times
1 Time
HEAT
POWER
Operation / Faulty Indication
Cool Mode
Time On
Sleep Mode On
Heat Mode
Auto Mode - Cool
Auto Mode - Heat
Compressor Overload
Pump Fault
Gas Leak
Room Sensor Open or Short
TIMER HEAT
2 Times
3 Times
ON
Indoor Coil Sensor Open or Short
Outdoor Coil Sensor Open or Short
ON or OFF Blinking
18
Application Information ACK-E-2009
Water Pump
The water pump will on if compressor is on during cooling cycle. The pump will remain on for at least 5 minutes
after the compressor is off.
During mode change from cooling to non-cooling mode, the pump will on for minimum 5 minutes. During
defrost cycle, the pump will on and will on for another 5 minutes once the defrost cycle is terminated.
Water Level Switch
This normally close switch is to detect faults in water pump system. It will confi rm for 30 seconds for switch
open and 60 seconds for switch close.
Once switch is confi rmed open, it will force compressor to cut off. If the switch is closed within 5 minutes, the
compressor is allowed to cut in. If the switch does not close for more than 5 minutes, the system will warn user
regarding the fault, the compressor is not allowed to cut in. If the switch is confi rmed opened twice within 30
minutes, the system assumes there are faults.
Phase Sequencer
The unit with Scroll Compressor can only rotate in one direction. For this reason, a protective device (phase
sequencer) is fi tted to prevent incorrect wiring of the electrical phases. When the three phases are not connected
correctly, the phase sequencer operates, and the unit will not start. This devise is located in the control box of
the outdoor unit.
The following table shows the LED indicator light for phase sequencer under normal operation and fault
conditions.
LED_P
(Red)
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 Blink On On On
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.
LED_R
(Yellow)
LED_S
(Yellow)
LED_T
(Yellow)
19
ACK-E-2009 Application Information
Installation Guideline
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 confi rm to local authority’s (e.g. National Electrical Board) codes and
•
regulations.
Voltage supply fl uctuation must not exceed ± 10% of rated voltage. Electricity supply lines must be
•
independent of welding transformers which can cause high supply fl uctuation.
Ensure that the location is convenient for wiring, piping and drainage.
•
The indoor unit must be installed in such that free from any obstacles in path of cool air discharge and
•
warm air return, and must allow spreading or air throughout the room (near the centre of the room).
Clearance must be provided for the indoor unit from the wall and obstacles as shown in the fi gure.
•
maeB
m0.1.niM
m0.3.xaM
Obstacle
Floor
The installation place must be strong enough to support a load of 4 times the indoor unit weight to avoid
•
m5.0.niMm5.0.niMm5.0.niM
m3.0.xaM
amplifying noise and vibration.
The installation place (handling ceiling surface) must be level and the height in the ceiling is 350mm or
•
more.
Unit Installation
770.0 mm (Hanging rod)
)dorgnignaH(mm0.226
Piping Direction
The indoor unit must be away from heat and steam sources (avoid installing it near an entrance).
•
Measure and mark the position for the hanging rod. Drill the hole for the angle nut on the ceiling and fi x
•
the hanging rod.
The installation template is extended according to temperature and humidity. Check on dimensions in
•
using.
The dimensions of the installation template are same as those of the ceiling opening dimensions.
•
Before ceiling laminating work is completed, be sure to fi t the installation template to the indoor unit.
•
Note: Be sure to discuss the ceiling drilling work with the installers concerned.
20
Application Information ACK-E-2009
Unit Hanging
Ceiling
Board
35.0mm
ACK-E
Confi rm the pitch of the hanging rod is 770mm x 622mm sharp.
•
Hold the unit and hand it on the hanging rod with the nut and washer.
•
Adjust the unit height to 35.0mm between the indoor unit bottom surface and the ceiling surface.
•
Confi rm with a level gauge that the unit is installed horizontally and tighten the nut and bol to prevent unit
•
falling and vibration.
Open the ceiling board along the outer edge of the paper installation template.
•
Drain Piping Work
Drain Test
Drain pipe must be downward gradient for smooth drainage.
•
Avoid the drain pipe from up and down slope to prevent
•
reversal fl ow.
During the drain piping connection, be careful not to exert extra
•
force on the drain connector at indoor unit.
The outside diameter of the drain connection at the fl exible
•
drain hose is 20mm.
Be sure to provide heat insulation (polyethylene foam with
•
thickness more than 8.0mm) on the drain piping to avoid the
condensed water dripping inside the room.
Connect the main drain pipe to the fl exible drain hose.
•
Feed water from fl exible drain hose and check the piping for
•
leakage.
When the test is completed, connect the fl exible drain hose to
•
the drain connector on the indoor unit.
Note: This indoor unit use drain pump for condensed water drainage. Install the unit horizontally to
prevent water leakage or condensation around the air outlet.
21
ACK-E-2009 Application Information
Panel Installation
The front panel can only be fi tted in one direction, follow the piping direction. (Follow piping arrow sticker
•
on the front panel).
Be sure to remove the installation template before installing the front panel.
•
Open the air intake grille by pulling back the catchers and remove it together with fi lter from panel.
•
Install the front frame panel onto the indoor unit by using 4 screws and tighten it completely to prevent cool
•
air leakage.
Connect the LED wire and air swing wire to the indoor unit (Optional).
•
Note: Install the front frame panel fi rmly to prevent cool air leakage which will cause condensation
and water dripping.
22
Application Information ACK-E-2009
Short Duct Specifi cation
The indoor unit is provided with air discharge and air intake “knock-out” hole for duct connection. However
•
the connection of the short duct for air discharge is possible on only one side.
The use of short duct for air discharge will improve air fl ow distribution if there is an obstruction (such as
•
alighting fi xture) or in a long, narrow room or an L-shaped room. It is also used for air-conditioning of two
rooms simultaneously.
Possible Direction For Air Discharge and Air Intake
Air DischargeAir Discharge
Air Intake
egrahcsiDriAegrahcsiDriA
Possible Opening Dimension for Duct Connection
Note: 1. Avoid to use the short duct on which the air discharge grille can be completely closed, to
prevent evaporator freezing.
2. In order to prevent condensation forming, be sure that there is suffi cient thermal insulation
and no leakage of cool air when installing the short duct.
3. Keep the introduction of fresh air intake within 20% of total air fl ow. Also provide a chamber
and use a booster fan.
23
ACK-E-2009 Application Information
(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 fulfi ll 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 suffi cient space for
maintenance around the unit.
Ensure that there is no obstruction of air fl ow 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 fl ow. 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 refi nery plant), such substances may lead to failure of the unit.
24
Application Information ACK-E-2009
(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 fl ow 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:
Model
Maximum Length, m 15 15 15 45 45
Maximum Elevation, m 8 8 8 25 25
Maximum No. of Bends 10 10 10 10 10
Indoor 20E/ER 25E/ER 28E/ER 40E/ER 50E/ER
Outdoor 20C/CR 25C/CR 28C/CR 35/40C/CR 50C/CR
Piping Sizes (Flare Connection Type)
Piping sizes are as follows:
R22
Model ALC 20C/CR ALC 25C/CR
Liquid (mm/in) 6.35 / 1/4 9.52 / 3/8
Suction (mm/in) 15.88 / 5/8 15.88 / 5/8
Model ALC 28C/CR ALC 35/ 40C/CR ALC 50C/CR
Liquid (mm/in) 9.52 / 3/8 9.52 / 3/8 9.52 / 3/8
Suction (mm/in) 15.88 / 5/8 19.05 / 3/4 19.05 / 3/4
R410A
Model A5LC 20C/CR A5LC 25C/CR
Liquid (mm/in) 6.35 / 1/4 6.35 / 1/4
Suction (mm/in) 12.70 / 1/2 15.88 / 5/8
Model A5LC 28C/CR A5LC 35C/CR A5LC 40C/CR A5LC 50C/CR
Liquid (mm/in) 9.52 / 3/8 9.52 / 3/8 9.52 / 3/8 9.52 / 3/8
Suction (mm/in) 15.88 / 5/8 15.88 / 5/8 15.88 / 5/8 15.88 / 5/8
25
ACK-E-2009 Application Information
Piping Connection To The Units
Align the centre of the piping and tighten the fl are nut suffi ciently with fi ngers.
•
Finally tighten the fl are nut with torque wrench unit the wrench clicks.
•
When tightening the fl are nut with torque wrench, ensure the direction for tightening follows the arrow on
•
the wrench.
(4) Wiring
Electrical Connections
Wiring regulations on wire diameters differ from country to country. Please refer to your LOCAL ELECTRICAL
CODES for fi eld wiring rules. Be sure that installation is complied with such rules and regulations
.
General Precautions
Ensure that the rated voltage of the unit corresponds to the nameplate 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.
All wiring must be GROUNDED to prevent possible hazards due to insulation failures.
•
All wiring must be fi rmly connected.
•
All wiring must not come in contact with the hot refrigerant piping, compressor or any moving parts of fan
•
motors.
Do not use joined and twisted wires for incoming power supply
•
26
Application Information ACK-E-2009
(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).
Filter Dryer
(Mclecular-Sieve Type
Note : R407C- Fix filter dryer
R22 - Nil
R410A - Nil
4. After evacuation, unscrew the spindle (diagram B) for the gas to run to indoor unit.
Caution For R407C / R410A
Do not top-up when servicing leak, as this will reduce the unit performance. Vacuum the unit thoroughly
•
and then charge the unit with fresh R407C according to the amount recommended in the specifi cation.
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ACK-E-2009 Application Information
(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).
•
R22
Model 10m 12m 15m 25m 35m 45m
20C/CR 38 / 53 70 / 96 118 / 162 - - -
25C/CR 94 / 53 172 / 98 289 / 164 - - -
28C/CR 94 / 133 172 / 244 291 / 411 - - -
30C/CR 133 / 133 244 / 243 410 / 409 964 / 961 1518 / 1514 2072 / 2067
35C/CR 130 / 136 238 / 248 400 / 418 940 / 983 1481 / 1547 2021 / 2112
40C/CR 134 / 136 245 / 248 412 / 418 968 / 983 1525 / 1547 2081 / 2112
50C/CR 130 / 134 238 / 245 400 / 412 942 / 968 1483 / 1525 2024 / 2081
R410A
Model 10m 15m 20m 25m 35m 45m
20C/CR 24 / 40 44 / 73 74 / 123 - - -
25C/CR 24 / 23 45 / 43 75 / 72 - - -
28C/CR 58 / 91 106 / 167 178 / 281 - - -
35C/CR 65 / 98 118 / 180 199 / 303 469 / 712 738 / 1122 1007 / 1531
40C/CR 61 / 97 112 / 178 189 / 299 445 / 703 700 / 1107 956 / 1511
50C/CR 50 / 87 92 / 159 155 / 267 363 / 628 572 / 989 781 / 1350
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