Argo DSAV92R5TAA Manual

TECHNICAL DATA
& SERVICE MANUAL
INDOOR UNIT: DSAV92R5TAA
DSAV122R5TAA
SPLIT SYSTEM AIR CONDITIONER
DSAV122R5TAA
0.8180.309.1 12/2003
387106950
Model No. Product Code No.
DSAV92R5TAA 387106949

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.
• ay 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, et 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 wirin
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 transportin
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 installin ...
• 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 servicin
• 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 8
1-3 Other Component specifications 12
1-4 Indoor Fan performance 13
2. DIMENSIONAL DATA 14
3. ELECTRICAL DATA 15
3-1 Electric Wiring Diagrams 15
4. FUNCTION 16
4-1 Room Temperature Control 16
4-2 Dry Operation (Dehumidification) 18
4-3 Automatic Switching between Cooling and Heating 18
4-4 Freeze Prevention (Cooling and Dry) 19
4-5 Compressor Overcurrent Protection (Cooling, Dry and Heating) 19
4-6 Overload Prevention (Heating) 20
4-7 Cold Draft Prevention (Heating) 21
4-8 Defrosting Operation (Heating) 22
4-9 Drain Pump and float switch 23
5. TROUBLESHOOTING 24
5-1 Check before and after troubleshooting 24
5-2 Air conditioner does not operate 24
5-3 Some part of air conditioner does not operate 28
5-4 Air conditioner operates, but abnormalities are observed 30
5-5 If a sensor is defective 32
6. CHECKING ELECTRICAL COMPONENTS 33
6-1 Measurement of Insulation Resistance 33
6-2 Checkin
g
Continuit
y
of Fuse on PCB Ass'
y
34
6-3 Checking Motor Capacitor 34
7. MAINTENANCE 35
7-1 Changing Address of Remote Control Unit in Indoor Unit 35
Table of Contents
3

1. SPECIFICATIONS
1-1 Unit Specifications
DSAV92R5TAA
Power source
V
olta
g
e ratin
g
Performance
Capacity
Air circulation (High/Med./Low) m³/h
External static pressure (High) Pa (mm W.G.)
Features
Controls/Temperature controls
Control unit
Timer
Fan speed
Air Filter
Operation sound (*) 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 Unit Height mm
Width mm
Depth mm
Package dimensions Unit Height mm
Width mm
Depth mm
Volume m3
Weight Unit Net kg
Shipping kg
DATA SUBJECT TO CHANGE WITHOUT NOTICE
(*) Power level measured at operating conditions (HIGH speed / 5mmH20 external static pressure) and inside
discharge air duct
34
6,35 (1/4)
571
Microprocessor/ I.C. thermostat
Wireless remote control unit
3 and Auto /1(Hi)
ON/OFF 24 hours & Daily program, 1-hour OFF
9,52 (3/8)
745
220 - 240V ~ 50H
z
230V
Washable
54/52/49
Cooling
49(5) at shipment - 69 (7) with booster cable
Heating
See catalogue with the requested matching
600/510/440
30
R407C
Flare type
1086
852
0,3
365
266
4

DSAV122R5TAA
Power source
V
olta
g
e ratin
g
Performance
Capacity
Air circulation (High/Med./Low) m³/h
External static pressure (High) Pa (mm W.G.)
Features
Controls/Temperature controls
Control unit
Timer
Fan speed
Air Filter
Operation sound (*) 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 Unit Height mm
Width mm
Depth mm
Package dimensions Unit Height mm
Width mm
Depth mm
Volume m3
Weight Unit Net kg
Shipping kg
DATA SUBJECT TO CHANGE WITHOUT NOTICE
(*) Power level measured at operating conditions (HIGH speed / 5mmH20 external static pressure) and inside
discharge air duct
220 - 240V ~ 50H
z
230V
Cooling Heating
See catalogue with the requested matching
600/510/440
Microprocessor/ I.C. thermostat
49(5) at shipment - 69 (7) with booster cable
Wireless remote control unit
ON/OFF 24 hours & Daily program, 1-hour OFF
3 and Auto /1(Hi)
12,7 (1/2)
R407C
266
Washable
54/52/49
Flare type
6,35 (1/4)
571
852
365
745
1086
0,3
30
34
5

1-2 Major Component Specifications
DSAV92R5TAA
Controller PCB
Part No.
Controls
Control circuit fuse
Remote Control Unit
Fan & Fan Motor
Type
Q'ty ……. Dia. and lenght mm
Fan motor model…Q'ty
No. Of poles…rpm (230 V) (*)
Running Amps (HIGH speed) A
Power input (HIGH speed) W
Coil resistance (Ambient temp. 20 °C ) ΩBLU-BRN: 95
BRN-BLK: 37
BLK-GRY: 15
GRY-VLT: 15
WLT-RED: 30
RED-YEL: 101
Safety devices Type
Operating temp. Open °C
Run capacitor µF
VAC
Heat Exch. Coil
Coil
Rows
Fin pitch mm
face area m2
DATA SUBJECT TO CHANGE WITHOUT NOTICE
(*) Fan speeds: H / M / L measured at operating conditions( HIGH speed / 5mmH20 external static pressure)
2
0,45
110
1,8
Internal thermal protector - 7AM 037 A 5
150 ± 5K
450
Microprocessor
250 V - 3,15
A
0,126
XR99EH-(SA)
RCS-6HPN4E-G
Centrifugal fan
3RGB-CO-45-30 5V/1….1
4 … 1060/1000/910
A
luminium plate fin / Copper tube
1,6
2…. Ø 160 / L 240
6

DSAV122R5TAA
Controller PCB
Part No.
Controls
Control circuit fuse
Remote Control Unit
Fan & Fan Motor
Type
Q'ty ……. Dia. and lenght mm
Fan motor model…Q'ty
No. Of poles…rpm (230 V) (*)
Running Amps (HIGH speed) A
Power input (HIGH speed) W
Coil resistance (Ambient temp. 20 °C ) ΩBLU-BRN: 95
BRN-BLK: 37
BLK-GRY: 15
GRY-VLT: 15
WLT-RED: 30
RED-YEL: 101
Safety devices Type
Operating temp. Open °C
Run capacitor µF
VAC
Heat Exch. Coil
Coil
Rows
Fin pitch mm
face area m2
DATA SUBJECT TO CHANGE WITHOUT NOTICE
(*) Fan speeds: H / M / L measured at operating conditions( HIGH speed / 5mmH20 external static pressure)
XR129EH-(SA)
Microprocessor
250 V - 3,15
A
RCS-6HPN4E-G
Centrifugal fan
2…. Ø 160 / L 240
3RGB-CO-45-30 5V/1….1
4 … 1060/1000/910
0,45
110
Internal thermal protector - 7AM 037 A 5
150 ± 5K
1,8
450
A
luminium plate fin / Copper tube
2
1,6
0,126
7

1-3 Other Component Specifications DSAV92R5TAA
DSAV122R5TAA
Trasformer
Rating Primary
Secondary
Capacity
Coil resistance Ω
(
at 21°C
)
Thermal cut-off temp.
Thermistor
(
Coil sensor TH1
)
Resistance ΚΩ
Thermistor
(
Room sensor TH2
)
Resistance ΚΩ
Drain pump
Model
Rating Voltage
Input
Total head capacity
Safet
y
float switch
Model
Contact rating 230V AC/DC - 0,5
A
0,4 l/min
BI 1300 2725
PC 309564003
220/240V - 50H
z
14W
A
TR-J105
A
C 230V, 50/60H
z
19V - 0.526
A
10 V
A
DTN-TKS134B
25 °C 5,0 ± 3%
PBC-41E-S14
Primary (WHT-WHT): 205 ± 10%
Secondary (BRN-BRN): 2,0 ± 10%
150°C
0 °C 15,3 ± 5%
8

9

2. DIMENSIONAL DATA
Units: mm
10

3. ELECTRICAL DATA
3-1 Electric Wiring Diagrams
11

4. FUNCTION
4-1. Room Temperature Control
■Cooling
●Room temperature control is obtained by cycling the compressor ON and OFF under control of the room
temperature sensor in the remote control unit.
●The room temperature (and other information) is transmitted every 5 minutes by the remote control unit to the
controller in the indoor unit.
●The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least
3 minutes. To protect the compressor from stalling out when trying to start against the high side refrigerant
pressure, the control circuit has a built-in automatic time delay to allow the internal pressure to equalize.
●As a protective measure, the control circuit switches the compressor OFF not before than 5 minutes
of compressor operation.
●Thermo. ON : When the room temperature is above T + 1°C (T°C is set temperature).
Compressor ➞ON
●Thermo. OFF : When the room temperature is equal to or below set temperature T°C.
Compressor ➞OFF
3 minutes5 minutes
ON OFF ON OFF ON OFFCompressor
ON OFF ON OFF ON OFF
More than
5 minutes
Outdoor fan
Indoor fan Set speed
T+1 °C
T°Cset temp.
Thermo.
OFF Thermo. OFF Thermo. ON Thermo. OFF
Thermo.
ON
Thermo.
ON
Thermo.
ON
Room temp.
5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes
Signal from remote control unit
3 seconds3 seconds3 seconds 3 seconds
12

■Heating
●Room temperature control is obtained by cycling the compressor ON and OFF under control of the room
temperature sensor in the remote control unit.
●The room temperature (and other information) is transmitted every 5 minutes by the remote control unit to the
controller in the indoor unit.
●The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least 5
minutes. To protect the compressor from stalling out when trying to start against the high side refrigerant
pressure, the control circuit has a built-in automatic time delay to allow the internal pressure to equalize.
●As a protective measure, the control circuit switches the compressor OFF not before than 5 minutes
of compressor operation.
●Thermo. ON : When the room temperature is below T –1°C (T°C is set temperature).
Compressor ➞ON
●Thermo. OFF : When the room temperature is equal to or above set temperature T°C.
Compressor ➞OFF
*1: Refer to "4-7 Cold Draft Prevention".
NOTE
5 minutes 5 minutes
ON OFF ONOFF Compressor OFF
ON OFF ONOFF Outdoor fan OFF
Set speed
LL LL LL
ON
OFF
OFF OFF ON OFF ON
*1
OFF
OFF ON
ON ( Reversing cycle )
Thermo.
ON Thermo. OFF Thermo. ON Thermo.
OFF
More than
5 minutes
T°C
T–1°C
T–2°C
set temp.
Indoor fan
Standby lamp
ndoor heat exch.
oil temp.*1 Tc °C
Solenoid coil
(4–way valve)
Operation button
Room temp.
Set speed
30 seconds30 seconds
3 seconds 3 seconds
5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes
Signal from remote control unit
13

4-2. Dry Operation (Dehumidification)
●Dry operation uses the ability of the cooling cycle to remove moisture from the air, but by running at low level to
dehumidify without greatly reducing the room temperature. The air conditioner repeats the ON/OFF cycle
automatically as shown in the chart below according to the room temperature.
●Intermittent ventilation occurs by switching the indoor fan speed between L ↔LL.
●Dry operation does not occur when the room temperature is under 15°C, which is the monitor zone.
●When the compressor stops, the indoor fan stops as well.
4-3. Automatic Switching between Cooling and Heating
●When AUTO mode is selected, the microprocessor calculates the difference between the set temperature and
the room temperature, and automatically switches to COOLING or HEATING mode to maintain the desired
temperature.
Room temp. ≥Set temp. ➞COOL
Room temp. < Set temp. ➞HEAT
This means that if the room temperature is higher than or equal to the set temperature, COOLING operation
begins. If the room temperature is lower than the set temperature, HEATING operation begins.
NOTE
Room temp.
Cooling operation
T+2 °C
Set temp. T °C
T–1°C
Monitor zone
Both the indoor and outdoor units stop.
Room temp. 15 °C
*Dry A zone
Compressor :
FMI (indoor fan) : Continuous operation L (low speed) / LL (very low speed) intermittent ventilation
only while the compressor is ON.
*Dry B zone
Compressor :
FMI (indoor fan) : Intermittent operation (ON for 3 minutes and OFF for 9 minutes) L (low speed) / LL (very low speed) intermittent ventilation
only while the compressor is ON.
14

DSAV92R5TA
A
DSAV122R5TA
A
H1 16 A 22 A
H2 7 A 10 A
5-4. Freeze Prevention (Cooling and Dry)
●This function prevents freezing of the indoor heat exchange coil.
●When the compressor has been running for 6 minutes or more and the temperature of the indoor heat exchange
coil falls below 2.4°C, the control circuit stops the compressor for at least 6 minutes. The compressor does not
start again until the temperature rises above 8°C or 6 minutes has elapsed.
5-5. Compressor Overcurrent Protection (Cooling, Dry and Heating)
●This function prevents the compressor from being damaged by overcurrent.
●When the compressor current exceeds either H1(A) for 2 seconds or H2(A) for 8 seconds, both compressor
and outdoor fan stop (Trip). At the same time, operation lamp in front of the indoor unit flashes.
●After 3 minutes, this function automatically releases and resumes operation until tripping repeats 8 times.
If the tripping repeats 9 times or more, the unit stops its operation.
The compressor current shown as H1 and H2 in the chart differ by models.
NOTE
2 sec. Trip
Trip
Trip
7 sec.8 sec.6 sec.
H1 (A)
H2 (A) 1 sec.
Compressor
current (A)
ON ON ON ON
OFFOFF
Set speed
More than
6 minutes
6 minutes
T+1 °C
Indoor heat exch.
coil temp. 2.4 °C
Compressor
Indoor fan
Room temp. Thermo. OFF
Thermo. ON
Set temp. T °C
More than
6 minutes
More than
6 minutes
Set speed
4-4.
4-5.
-1°C
,
-1°C
15

DSAV92R5TA
A
DSAV122R5TA
A
A1 54°C 58°C
A2 52°C 56°C
A3 45°C 50°C
A
4
42°C
DSAV92R5TA
A
DSAV122R5TA
A
B1 6,5 A 9,5 A
B2 4,4 A 6,5 A
B3 4,4 A 6,5 A
4-6. Overload Prevention (Heating)
●Overload prevention avoids overheating of the indoor heat exchange coil. This function works either when
the temperature of indoor heat exchange coil rises up or compressor current rises to a certain level.
■ Temperature of indoor heat exchange coil sensor
●When the temperature of the indoor heat exchange coil rises above A2°C, and if the indoor fan is L (low speed),
the fan speed changes from L (low speed) to M (medium speed).
●When the temperature of the indoor heat exchange coil rises above A1°C, the outdoor fan stops.
The operation temperaturesshown as A1,A2,A3 and A4 in the chart differsby models.
NOTE
ONON OFF
ON
HorMorL H➞H, M ➞M, L ➞M
A1
A2
A3
A4
Indoor heat
exch. coil
temp. °C
Outdoor fan
Indoor fan
Compressor
■ Compressor current detection
●When the compressor current rises above B1(A), and if the indoor fan is L (low speed), the fan speed
changes from L (low speed) to M (medium speed). At the same time the outdoor fan stops its operation.
●When the compressor current drops to B2(A), the outdoor fan resumes its operation.
●When the compressor current drops below B3(A), indoor fan returns to operate in set speed.
The compressor current shown as B1,B2 and B3 in the chart differsby models.
NOTE
ONON OFF
ON
HorMorL H➞H, M ➞M, L ➞M
B1
B2
B3
Compressor
current (A)
Outdoor fan
Indoor fan
Compressor
16

DSAV92R5TA
A
DSAV122R5TA
A
Tc 33°C 34°C
4-7. Cold Draft Prevention (Heating)
●This function controls indoor fan speed so thatstrong draft of cold air could not blow out before the indoor
heat exchange coil have sufficiently warmed up.
●STANDBY lamp of the indoor unit lights up when this function is working.
●Indoor fan operates in LL until indoor heat exchange coil temperature reaches 32°C.
●After releasing the defrosting, indoor fan halt its operation until the coil temperature reach 32°C.
●When the coil temperature rises above Tc°C, indoor fan operates in set speed.
The operation temperature shown as Tc in the chart differ by models.
NOTE
OFF
ON
OFF or Set speed
Indoor fan
Standby lamp
Indoor heat exch.
coil temp. (°C)
Tc
Max. 10minutes
LL
Release of
cold draft prevention
17

4-8. Defrosting Operation (Heating)
- Reverse-cycle Defrosting
Defrosting Sequence
Heating Operation
-compressor ON
-4-way valve ON
Frost Detection
Frosting is assumed mostly under the following condition
-indoor heat exchanger coil temperature drops 0,8°c
per 6 minutes and it repeats 3 times in succession
-integrated operating time of compressor is longer
than 3 hours
-temperature of indoor heat exchanger coil, immediately
before thermo goes off, is below Td+5,6°C, etc
NOTE:
The values shown as Td differs according to the models
Td
Reverse-cycle defrosting operation
-compressor ON
-outdoor fan OFF
-4-way valve OFF
-indoor fan cold draft prevention mode
Releasing of defrosting
-Defrosting operation lasts 8 to 12 minutes (max)
-compressor current during reverse-cycle defrosting
operation exceeds certain ampere
DSAV122R5TA
A
44°C
DSAV92R5TA
A
38°C
18

4-9 Drain Pump and Float Switch
Compressor
Drain Pump OFF
Float Switch
NOTE:
Either in Heating or another mode or the unit is stopped, when the float switch is turned ON,
the drain pump operates for 20 minutes minimum
OFF
OFFOFF
OFF OFF
OFF
ON ON
ON ON ON ON
ON
ON
ON
20' min. 20' min.
3
'
min.
■ Defrosting Mode Timing Chart
ON
ON
ON ON ON
ON
ONON
OFF
OFF
OFF
OFF
OFF
60 seconds Max. 8 to 12 minutes 60 seconds
Start of defrosting Release of defrosting
OFF
OFF
Release of
cold draft prevention
Compressor
Outdoor fan
Solenoid coil
(4–way valve)
Indoor fan
Standby lamp
Indoor heat
exch. coil
temp.
ONON
Set speed
Set speed
* 1
4 or 8 seconds 2 seconds
Tc°C
32°C
LL
NOTE
*1: Refer to "5-7 Cold Draft Prevention".
* 1: Refer to "4- 7 Cold Draft Prevention"
19

6. TROUBLESHOOTING
6-1. Check before and after troubleshooting
6-1-1. Check power supply wiring.
●Check that power supply wires are correctly connected to terminals Land Non the terminal plate in the indoor
unit.
6-1-2. Check inter-unit wiring.
●Check that inter-unit wiring is correctly connected to the outdoor unit from the indoor unit.
6-1-3. Check power supply.
●Check that voltage is in specified range (±10% of the rating).
●Check that power is being supplied.
6-1-4. Check lead wires and connectors in indoor and outdoor units.
●Check that coating of lead wires is not damaged.
●Check that lead wires and connectors are firmly connected.
●Check that wiring is correct.
WARNING
Hazardous voltage can cause ELECTRIC SHOCK or
DEATH. Disconnect power or turn off circuit breaker
before you start checking or servicing.
5.
5-1.
5-1-1.
5-1-2.
5-1-3.
5-1-4.
5-2. Air conditioner does not operate.
5-2-1. Circuit breaker trips (or fuse blows).
A. When the circuit breaker is set to ON, it trips immediately. (Resetting is not possible.)
●There is a possibility of ground fault.
●Check insulation resistance.
If resistance value is 2MΩor less, insulation is defective (“NO”).
NO
Measure insulation
resistance of electrical
parts in outdoor unit.
NO
Set circuit breaker to OFF.
*
Measure insulation
resistance of electrical
parts in indoor unit.
1Remove inter-unit wires from
terminal plate in outdoor unit.
Measure insulation resistance
of outdoor unit.
•
2Remove inter-unit wires from
terminal plate in indoor unit.
Then, pull the power plug out of
the wall outlet
Measure insulation resistance
of indoor unit.
•
•
•
Insulation of
outdoor unit
is defective.
Insulation of
indoor unit
is defective.
WARNING
20