Argo AS71CL Manual

TECHNICAL DATA
& SERVICE MANUAL
INDOOR UNIT: AS71CL
AS100CL
AS125CL
SPLIT SYSTEM AIR CONDITIONER
AS125CL
0.8180.547.0 11/2008
Model No. Product Code No.
AS71CL 387006173
387006175
387006174AS100CL

IMPORTANT!
Please read before installation
This air conditioning system meets strict safety and operating
standards.
For the installer or service person, it is important to install or
service the system so that it operates safely and efficiently.
For safe installation and trouble-free operation, you must:
• Carefully read this instruction booklet before beginning.
• Follow each installation or repair step exactly as shown.
• Observe all local, state and national electrical codes.
• Pay close attention to all warning and caution notices given in
this manual.
•The unit must be supplied with a dedicated electrical line.
This symbol refers to a hazard or unsafe practice which can result
in severe personal injury or death.
This symbol refers to a hazard or unsafe practice which can result
in personal injury or product or property damage.
If necessary, get help
These instructions are all you need for most installation sites and
maintenance conditions.
If you require help for a special problem, contact our sale/service
outlet or your certified dealer for additional instructions.
In case of improper installation
The manufacturer shall in no way be responsible for improper
installation or maintenance service, including failure to follow the
instructions in this document.
SPECIAL PRECAUTIONS
• During installation, connect before the refrigerant system and
then the wiring one; proceed in the reverse orden when removing
the units.
When wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE
PERSONAL INJURY OR DEATH. ONLY QUALIFIED,
EXPERIENCED ELECTRICIANS SHOULD ATTEMPT
TO WIRE THIS SYSTEM.
• Do not supply power to the unit until all wiring and tubing are
completed or reconnected and checked, to ensure the grounding.
• Highly dangerous electrical voltages are used in this system.
Carefully refer to the wiring diagram and these instructions when
wiring.
Improper connections and inadequate grounding can cause
accidental injury and death.
•Ground the unit following local electrical codes.
• The Yellow/Green wire cannot be used for any connection
different from the ground connection.
• Connect all wiring tightly. Loose wiring may cause overheating
at connection points and a possible fire hazard.
• Do not allow wiring to touch the refrigerant tubing, compressor,
or any moving parts of the fan.
• Do not use multi-core cable when wiring the power supply and
control lines. Use separate cables for each type of line.
When transporting
Be careful when picking up and moving the indoor and outdoor
units. Get a partner to help, and bend your knees when lifting to
reduce strain on your back. Sharp edges or thin aluminium fins on
the air conditioner can cut your fingers.
When installing...
• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of the flare
and union tubes before connecting them; screw by hand and
then tighten the nut with a torque wrench for a leak-free
connection.
• Check carefully for leaks before starting the test run.
NOTE:
Depending on the system type, liquid and gas lines may be either
narrow or wide. Therefore, to avoid confusion, the refrigerant
tubing for your particular model is specified as narrow tube for
liquid, wide tube for gas.
When servicing
• Turn the power OFF at the main power board before opening
the unit to check or repair electrical parts and wiring.
• Keep your fingers and clothing away from any moving parts.
• Clean up the site after the work, remembering to check that no
metal scraps or bits of wiring have been left inside the unit being
serviced.
• Ventilate the room during the installation or testing the refrigeration
system; make sure that, after the installation, no gas leaks are
present, because this could produce toxic gas and dangerous
if in contact with flames or heat-sources.
WARNING
CAUTION
WARNING
… In a ceiling
Make sure the ceiling is strong enough to hold the unit-weight.
It may be necessary to build a strong wooden or metal frame to
provide added support.
… In a room
Properly insulate any tubing run inside a room to prevent
"sweating", which can cause dripping and water damage to
walls and floors.
... In moist or uneven locations
Use a raised concrete base to provide a solid level foundation
for the outdoor unit. This prevents damage and abnormal
vibrations.
... In area with strong winds
Securely anchor the outdoor unit down with bolts and a metal
frame. Provide a suitable air baffle.
... In a snowy area (for heat pump-type systems)
Install the outdoor unit on a raised platform that is higher then
drifting snow. Provide snow vents.
When connecting refrigerant tubing
2

Page
1. SPECIFICATIONS 4
1-1 Unit specifications 4
1-2 Major Component specifications 6
1-3 Other Component specifications 8
2. DIMENSIONAL DATA 9
3. ELECTRICAL DATA 11
3-1 Electric Wiring Diagram 11
3-2 Wiring System Diagrams 11
4. FUNCTION 12
4-1 Cool Mode Operation 12
4-2 Dry Mode Operation 13
4-3 Fan Mode Operation 13
4-4 Auto Fan Speed 13
4-5 Forced Mode 14
4-6 Protection Operations in Cool and Dry Modes 14
4-7 I FEEL Function 15
4-8 NIGHT Function 15
4-9 DRAIN PUMP Mode 15
4-10 Diagnostic 16
4-11 Jumpers Configuration 16
4-12 Contacts for Building Automation 17
4-13 Maintenance 18
5. TROUBLESHOOTING 19
5-1 Check before and after troubleshooting 19
5-2 Circuit Breaker Trips or Fuse Blows 19
5-3 Circuit Breaker in several minutes after turning air conditioner on 19
5-4 Unit and Compressor do not run 20
5-5 Some parts of the Air Conditioner do not operate 21
5-6 Air Conditioner operates, but abnormalities are observed 22
5-7 Poor Cooling 24
5-8 Excessive Cooling 25
5-9 If a Sensor is defective 25
6. CHECKING ELETRICAL COMPONENTS 26
6-1 Measurement of Insulation Resistance 26
6-2 Checking Continuity of Fuse on PCB Ass'y 27
6-3 Checking Motor Capacitor 27
Table of Contents
3

1. SPECIFICATIONS
1-1 Unit Specifications
AS71CL
Power source
V
olta
g
e ratin
g
Performance
Capacity
Air circulation (High/Med./Low) m³/h
Features
Controls/Temperature controls
Control unit
Timer
Fan speed
Airflow direction
Air Filter
Power noise level High/Med./Low dB-A
Refrigerant tubing connections
Refrigerant Narrow tube mm(in.)
tube diameter Wide tube mm(in.)
Refrigerant
Dimensions & Wei
g
ht
Dimensions (include panel) Height mm
Width mm
Depth mm
Package dimensions Unit Height mm
Width mm
Depth mm
Volume m3
Ceiling panel Height mm
Width mm
Depth mm
Volume m3
Weight (include panel) Net kg
Shipping kg
Ceiling panel Net kg
Shipping kg
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling
6,35 (1/4)
R410A
Microprocessor/ I.C. thermostat
3 and Auto
See catalogue with the requested matching
1140/1020/840
8
220 - 240V ~ 50Hz
230 V - 50 Hz
880
0,1
22
26
860
860
0,238
6
110
965
840
965
Wireless remote control unit
ON/OFF 24 hours
320
338
Auto (Remote control)
Washable, easy acces, long life (2500 hr.)
56/54/53
Flare type
15,88 (5/8)
4

AS100CL AS125CL
Power source
V
olta
g
e ratin
g
Performance
Capacity
Air circulation (High/Med./Low) m³/h
Features
Controls/Temperature controls
Control unit
Timer
Fan speed
Airflow direction
Air Filter
Power noise level High/Med./Low dB-A
Refrigerant tubing connections
Refrigerant Narrow tube mm(in.)
tube diameter Wide tube mm(in.)
Refrigerant
Refrigerant control
Dimensions & Wei
g
ht
Dimensions (include panel) Height mm
Width mm
Depth mm
Package dimensions Unit Height mm
Width mm
Depth mm
Volume m3
Ceiling panel Height mm
Width mm
Depth mm
Volume m3
Weight (include panel) Net kg
Shipping kg
Ceiling panel Net kg
Shipping kg
DATA SUBJECT TO CHANGE WITHOUT NOTICE
3 and Auto
ON/OFF 24 hours
Microprocessor/ I.C. thermostat
1920/1680/1320
Wireless remote control unit
220 - 240V ~ 50Hz
230 V - 50 Hz
Cooling
See catalogue with the requested matching
R410A
Capillary tube
860
1150
368
Auto (Remote control)
63/60/56
Flare type
9,52 (3/8)
840
0,35
Washable, easy acces, long life (2500 hr.)
8
110
1250
965
19,05 (3/4)
350
1170
10
0,131
27
32
5

1-2 Major Component Specifications
AS71CL
Controller PCB
Part No.
Controls
Control circuit fuse
Jumper setting JP1..JP5
Remote Control Unit
Fan & Fan Motor
Type
Q'ty ……. Diameter mm
Fan motor model…Q'ty
No. Of poles…rpm (230 V, High)
Running Amps A
Power input W
Coil resistance (Ambient temp. 20 °C )
Ω
BRN-WHT: 170,3
WHT-VLT: 18,1
VLT-ORG: 43,2
ORG-YEL: 43,2
WHT-PNK: 83,5
YEL-BLK: 60,2
Safety devices Type
Operating temp. Open °C
Close °C
Run capacitor µF
VAC
Panel
Model
Flap motor
Type
rating
coil resistance (25°C) k
Ω
Heat Exch. Coil
Coil
Rows
Fin pitch mm
face area m2
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SAC W-REM
400 ± 7%
SAC ON-OFF IDU
Microprocessor
250 V - 3,15 A
2,54mm-5pcs
0,611
31,4
450
130 ± 8
79 ± 15
4,5
Internal thermal protector
Centrifugal fan
SFG6X-41D6P…1
6 … 470
1…. Ø 443
0,343
Aluminium plate fin / Copper tube
1,5
2
DC 12 V
Stepping motor
ASG25SCL
MP24Z2
6

AS100CL AS125CL
Controller PCB
Part No.
Controls
Control circuit fuse
Jumper setting JP1..JP5
Fan & Fan Motor
Type
Q'ty ……. Diameter mm
Fan motor model…Q'ty
No. Of poles…rpm (230 V, High)
Running Amps A
Power input W
Coil resistance (Ambient temp. 20 °C )
Ω
BRN-WHT: 75,1
WHT-VLT: 6,7
VLT-ORG: 20,6
ORG-YEL: 27,4
WHT-PNK: 42,7
YEL-BLK: 58
Safety devices Type
Operating temp. Open °C
Close °C
Run capacitor µF
VAC
Panel
Model
Flap motor
rating
coil resistance (25°C) k
Ω
Heat Exch. Coil
Coil
Rows
Fin pitch mm
face area m2
DATA SUBJECT TO CHANGE WITHOUT NOTICE
1…. Ø 443
400 ± 7%
MP24Z2
DC 12 V
ASG3648SCL
Centrifugal fan
SFG6X-81A6P…1
6 … 530
0,765
38
2
Internal thermal protector
130 ± 8
79 ± 15
6
1,5
0,556
Aluminium plate fin / Copper tube
450
250 V - 3,15 A
2,54mm-5pcs
SAC ON-OFF IDU
Microprocessor
7

1-3 Other Component Specifications
Trasformer
(
TR
)
Rating Primary
Secondary
Thermal cut-off temp. (PTC) (on the board)
Thermistor
(
Coil sensor
)
Resistance k
Ω
Thermistor
(
Room sensor
)
Resistance k
Ω
Drain pump
Model
Rating Voltage
Input
Total head / capacity
Safet
y
float switch
Model
Contact rating
12W
DC 5V - 50W
500 mm / 400 cc/min.
FS-0218-102
C 883 - 120°C
PJV-1434A
230V
NTC-THERMISTOR
10 at 25 °C
NTC-THERMISTOR
10 at 25 °C
A040C5026AA
AC 230 V, 50 Hz
13 V - 5VA
8

2. DIMENSIONAL DATA
AS71CL
Units: mm
12
776
225
8
12
X-view
124
124
7
5
6292
232
100
339
221
59
157
182
261
860 500
500
860
2
2
1
221
308 30
48
124
124
1212 100
776
7
34
566 (Suspention bolt pitch)
820 (Ceiling opening)
820 (Ceiling opening)
377
Panel center
757 (Suspention bolt pitch)
368 25
9
X
Air intake grille
Air outlet
Refrigerant liquid line [D. 9.52 (In case of 25 typ
e
,
use the tube connector.)]
Refrigerant gas line
D. 12.7: 9, 12 type
Drain connection
Power supply entry
For discharge duct
For fresh air intake
Suspension bolt mounting
9
6.35
D.1
5
.
88
D.1
5
.
88
9

AS100CL
AS125CL
856 (Suspention bolt pitch)
820 (Ceiling opening)
1110 (Ceiling opening)
522
Panel center
757 (Suspention bolt pitch)
513 25
9
8
83
2
2
1
4
X
X-view
124
124
124
338 30
48
124
1066
12 100
12
1212
244
249
776 180 57
6
244
182
157
59
291
292 339
232
790
1150
860
500
Air intake grille
Air outlet
Refrigerant liquid line (D.9.52)
Refrigerant gas line (D.19.05)
Drain connection
Power supply entr y
For discharge duct
For fresh air intake
Suspension bolt mounting
9
10

3. ELECTRICAL DATA
3-1 Electric Wiring Diagram
3-2 Wiring System Diagram
mmm2mmm2
97 40
60 50
54 50
AB
Model Power Supply Power/Control line Delayed fuse
AE71
4 2,5
15 A
AE100 15 A
AE125 25 A
11

4.FUNCTION
4-1 Cool Mode Operation
In Cooling Mode, the operation of the compressor (CM), Outdoor Fan (FMO) and Indoor Fan (FMI) are
determined by the difference between the room air temperature (RAT) and the set point temperature (SPT)
as shown in the graph.
NOTES
1. In this graph, the FMI is operating with the “Auto Fan Speed” setting. If the user has selected the Low,
Medium or High fan speed, the FMI will run constantly at that speed only.
2. In addition to the temperature difference of above, the operations of the main components (CM, FMO,
FMI) is also controlled by protection delays. That is: - the minimum off time of compressor is 3 minutes. -
- the minimum off time of compressor is 3 minutes. -
- the indoor fan can change speed only after it has operated at the same speed for 30 sec if in AUTO
and 1 sec for the other settings (High, Med, Low).
12

4-2 Dry Mode Operation
Dry operation remove moisture from indoor air running, in cooling mode, at a low level without reducing the
ambient temperature. This is done cycling ON and OFF indoor and outdoor units according to below.
ROOM DRY LEVEL
TEMP
≥SPT+2°C LEVEL 0 Operation according to COOLING mode
CM on
< SPT+2°C LEVEL 1 FMO on
≥SPT-1°C FMI switches between L and LL (30 seconds)
RV off
CM switches 9 minutes off and 3 minutes on
< SPT-1°C LEVEL 2 FMO switches 9 minutes off and 3 minutes ON
≥15°C FMI switches off and L during CM operation
RV off
CM off
< 15°C DRY OFF ZONE FMO off
FMI off
RV off
SPT = Set Point Temperature
4-3 Fan Mode Operation
With this mode, the indoor fan is turned on while CM, FMO and RV stay off all the time. The user can select
between 3 speeds: HIGH, MEDIUM and LOW.
4-4 Auto Fan speed
With this option selected, the indoor fan speed changes automatically according to the difference between
the detected air temperature (RAT sensor) and the set point (SPT):
COOLING MODE
2 ≤(RAT – SPT): HIGH speed
1 ≤(RAT – SPT) <2: MEDIUM speed
(RAT – SPT) <1: LOW speed
NOTE
SPT = Set Point Temperature
13

4-5 Forced Mode
In this mode the system operates (COOLING mode – fixed settings) or is switched off by means of
the MODE button of the indoor unit control board. The operation modes can be selected pressing
the button in a cyclic way (OFF ð COOL ð OFF…). The settings are:
SET POINT temperature = 25°C
FAN SPEED = HIGH
4-6 Protection operations in Cool and Dry Mode
This protection prevents ice formation on the indoor coil heat exchanger. The protection is activated by
the indoor coil temperature (ICT sensor) and only after 6 minutes of compressor operation. This
protection acts in 2 levels:
LEVEL 1
INDOOR FAN SPEED: ANY (as selected from remote controller)
COMPRESSOR: ON
OUTDOOR FAN: cycling (30 seconds ON B30 seconds OFF).
LEVEL 2
INDOOR FAN SPEED: ANY (as selected from remote controller)
COMPRESSOR: OFF for at least 6 minutes and until ICT ≥8°C
OUTDOOR FAN: OFF for at least 6 minutes and until ICT ≥8°C
The system exit this protection routine when ICT temperature rises above 8°C.
14

4-7 I FEEL Function
As standard configuration the air conditioner operates detecting the room temperature through the sensor
equipped in the wireless remote controller (icon I FEEL shown on the display). This feature provides a
personalised environment since the temperature can be detected where the remote controller is located.
It is possible to de-activate this option pressing the I FEEL button on the remote controller.
In this case the I FEEL icon is no longer displayed and room temperature is detected through the sensor
included in the indoor unit.
4-8 NIGHT Function
When this function is active, room temperature changes automatically to compensate for body temperature
variations while sleeping. After 10 hours of operation system switches automatically to OFF state.
4-9 DRAIN PUMP Mode
This unit is equipped with a drain pump
The level detection is done through a float switch connected at the input WS (closed under normal condition,
and opened when water overflow). System operation is according to the following chart:
OPERATION
led
CM
FMO
Open
Closed
Blink
ON
OFF
Overflow when
THERMO is ON Overflow when THERMO is OFF
ON
OFF
Drain
pump
ON
OFF
Thermostat
ON
OFF
Overflow when
unit is OFF(standby)
T < 10 min
15

4-10 Diagnostic
With this feature is possible to have a visual signal that a trouble is occurring.
This mode is always active and the signalling is made through the display board LEDS .
In case of no troubles the LEDS status follows its normal function.
NOTES
 The troubles are showed according a priority list that is in case of more than one
trouble present, is always showed, at first, the one with the highest priority (1 23 etc).
 Sensor damaged means a situation where sensor is short-circuited or opened.
 In case of damaged sensors, the system (CM, FMO, FMI etc), if in OFF state, does not start.
 WRONG MODE SELECTED means a situation where the operating mode chosen with
remote controller does not comply with the one allowed by jumpers settings.
Priority TROUBLE LD1(stby) LD2(opr) LD3(timer)
2 RAT damaged F O O
3 ICT damaged F F O
4 WRONG MODE F F F
SELECTED
5 Water level alarm O F O
O = LED off
z= LED on
F = LED blinking
4-11 JUMPERS CONFIGURATION
Jumpers are located on the indoor PCB near the MODE button.
Unit is shipped with jumpers set according to the following table:
LEDS status Effects
System does not operate
System does not operate
JP2
JP3
JP4
JP5
See paragraph
4-9 DRAIN PUMP MODE
JUMPER
JP1
STATUS
closed
open
closed
open
closed
16

4-12 Contacts for Building Automation
4-12.1 INPUT CONTACT (J4 - green)
The status of this input affects system operation according to the following:
Contact OPEN : system does not operate (always OFF) – inputs from wireless remote controller are not processed
Contact CLOSED: system operates in the normal way according to the inputs coming from wireless remote controller
4-12.2 OUTPUT CONTACT (J12)
This connector is directly tied to the contact (normally open) of a power relay which activates every time
the following alarm condition occur:
•RAT damaged
•ICT damaged
In this case when alarm happens, on poles 1 and 3 of J12 connector, 220 VAC-50Hz are available.
Max electrical load: 1A- 240VA
C
17

4-13 Maintenance
Changing the Address of the Air Conditioner
In case of more than one air conditioner operating in the same room, it may be necessary to assign an address to each
unit in order to avoid operation conflicts. Address is set acting on the dip-switches located on the indoor PCB and on the
remote controller. The PCB settings must match the corresponding ones on the wireless remote controller.
How to change address of the air conditione
r
Dip switch is located on the indoor PCB near the buzzer.
Set the PCB to the address desidered
UNIT
ADDRES
S
SW1 SW2
1 off off
2 off on
3 on off
4onon
As default switches SW1 and SW2 are in off status
(PCB factory state).
How to change address on Remote Control Uni
t
Dip switch is located on the battery compartment.
1) Pull out the door and remove the batteries.
2) Set the switch SW1 and SW2 according to the indoor PCB settings
(do not act on SW3 and SW4)
3) Insert the batteries and pull on the door
As default switches SW1 and SW2 are in off status (remote controller factory state).
SETTINGS
18

5. TROUBLESHOOTING
5-1 Check Before and After Troubleshooting
(A) Check power supply wiring.
• Check the power supply wires are correctly connected.
(B) Check power supply.
• Check that voltage is in specified range (±10% of the rating).
• Check that power is being supplied.
• WARNING: If the following troubleshooting must be done with power supplied,
be careful not to touch any uninsulated live part that can cause eletric shock
5-2 Circuit Breaker Trips or Fuse Blows
• When circuit breaker is set to ON, it trips in a few moments. Resetting is not possible.
• Measure insulation resistance. There is a possibility of ground fault.
If resistance value is 1 Mohm or less, insulation is defective.
5-3 Circuit Breaker Trips in Several Minutes
After Turning Air Conditioner On
1 • There is the possibility of short circuit.
19

2 • The unit does not run.
5-4 Unit and Compressor Do Not Run
The unit does not run when air conditioner is in the follwing conditions:
• When the room temperature is below the setting temperature.
• During the protection modes.
20