Argo AWR218CLE Operating manual

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AWR218CLE - AER218SC
0.8180.028.0 05/99

i
Important!
Please Read Before Starting
This air conditioning system meets strict safety and
operating standards. As the installer or service person,
it is an important part of your job to install or service the
system so 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.
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 sales/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
When Wiring
ELECTRICAL SHOCK CAN CAUSE
SEVERE PERSONAL INJURY OR
DEATH. ONLY A QUALIFIED,
EXPERIENCED ELECTRICIAN SHOULD
ATTEMPT TO WIRE THIS SYSTEM.
• Do not supply power to the unit until all wiring and
tubing are completed or reconnected and checked.
• 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 or death.
• Ground the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause
overheating at connection points and a possible fire
hazard.
WARNING
CAUTION
WARNING
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 aluminum fins on the air conditioner can
cut your fingers.
When Installing…
…In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the
units weight. It may be necessary to construct a strong
wood or metal frame to provide added support.
…In a Room
Properly insulate any tubing run inside a room to
prevent “sweating” that can cause dripping and water
damage to walls and floors.
…In Moist or Uneven Locations
Use a raised concrete pad or concrete blocks to
provide a solid, level foundation for the outdoor unit.
This prevents water damage and abnormal vibration.
…In an Area with High 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 than drifting snow. Provide snow vents.
When Connecting Refrigerant Tubing
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces
of the flare and union tubes before connecting them,
then tighten the nut with a torque wrench for a leak-
free connection.
• Check carefully for leaks before starting the test run.
When Servicing
• Turn the power off at the main power box (mains)
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 you finish, remembering to
check that no metal scraps or bits of wiring have
been left inside the unit being serviced.
Others
• Ventilate any enclosed areas when installing or
testing the refrigeration system. Escaped refrigerant
gas, on contact with fire or heat, can produce
dangerously toxic gas.
• Confirm upon completing installation that no
refrigerant gas is leaking. If escaped gas comes in
contact with a stove, gas water heater, electric room
heater or other heat source, it can produce
dangerously toxic gas.
CAUTION

Table of Contents
Page
1.OPERATING RANGE..............................................................................................................................1
2.SPECIFICATIONS
2-1.Unit Specifications..........................................................................................................................2
2-2.Major Component Specifications....................................................................................................3
2-3.Other Component Specifications....................................................................................................5
3.DIMENSIONAL DATA.................................................................................................................................7
4.REFRIGERANT FLOW DIAGRAM ...........................................................................................................9
5.PERFORMANCE DATA
5-1.Performance charts .......................................................................................................................10
5-2.Air Throw Distance Chart ..............................................................................................................11
5-3.Cooling Capacity ...........................................................................................................................12
6.ELECTRICAL DATA
6-1.Electrical Characteristics................................................................................................................13
6-2.Electric Wiring Diagrams................................................................................................................14
7.FUNCTION
7-1.Room Temperature Control ...........................................................................................................16
7-2.Freeze Prevention .........................................................................................................................17
7-3.Outdoor Fan Speed Control ..........................................................................................................18
8.TROUBLESHOOTING
8-1.Check before and after troubleshooting ........................................................................................19
8-2.Air conditioner does not operate ....................................................................................................20
8-3.Some part of air conditioner does not operate ..............................................................................24
8-4.Air conditioner operates, but abnormalities are observed .............................................................26
8-5.If a sensor is defective ...................................................................................................................27
9.REFRIGERANT R407C: SPECIAL PRECAUTIONS WHEN SERVICING THE UNIT
9-1.Characteristics of new refrigerant R407C.......................................................................................28
9-2.Checklist before serving.................................................................................................................28
9-3.Tools specifically for R407C...........................................................................................................29
9-4.For tubing installation procedures..................................................................................................29
9-5.In case of compressor malfunction.................................................................................................30
9-6.In case refrigerant is leaking...........................................................................................................32
9-7.Charging additional refrigerant.......................................................................................................34
9-8.Retro-fitting existing systems..........................................................................................................34
10.CHECKING ELECTRICAL COMPONENTS
10-1.Measurement of Insulation Resistance..........................................................................................35
10-2.Checking Continuity of Fuse on PCB Ass'y....................................................................................36
10-3.Checking Motor Capacitor .............................................................................................................36
ii

1
1.OPERATING RANGE
Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.
Cooling Maximum 32°C D.B. / 23°C W.B. 43°C D.B.
Minimum 19°C D.B. / 14°C W.B. 19°C D.B.
●For COOLINGONLY models : AER218SC

DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks:Rating conditions are:
Indoor air temperature 27°C DB/19°C WB
Outdoor air temperature 35°C DB/24°C WB
2
Power Source 220 – 240 V ~ 50 Hz
Cooling
Capacity kW 5.10
BTU/h 17,401
Air circulation (High) m3/h 800
Moisture removal (High) Liters/h 2.7
Voltage rating V220 / 230 / 240
Available voltage range V198 to 264
Running amperes A10.1 / 10 / 10
Power input W2,200 / 2,260 / 2,320
Power factor %99 / 98 / 97
C.O.P. W/W 2.3 / 2.3 / 2.2
Compressor locked rotor amperes A45 / 46 / 48
Controls / Temperature control Microprocessor / I.C. thermostat
Control unit Wireless remote control unit
Timer ON/OFF 24-hours & Daily Program
Fan speeds Indoor / Outdoor 3 and Auto / Auto (Hi , Lo)
Airflow direction (Indoor)Horizontal Manual
Vertical Auto
Air filter Washable, Anti-Mold
Compressor Rotary (Hermetic)
Refrigerant / Amount charged at shipment gR407C / 1,915
Refrigerant control Capillary tube
Operation sound Indoor – Hi / Me / Lo dB-A 45 / 41 / 36
Outdoor – Hi dB-A 51
Refrigerant tubing connections Flare type
Max. allowable tubing length at shipment m10
Refrigerant tube Narrow tube mm (in.) 6.35 (1/4)
diameter Wide tube mm (in.) 12.7 (1/2)
Refrigerant tube kit / Accessories Optional / Hanging wall bracket
Indoor Unit Outdoor Unit
Unit dimensions Height mm 360 630
Width mm 1,000 830
Depth mm 205 305
Package dimensions Height mm 282 713
Width mm 1,080 994
Depth mm 443 413
Weight Net kg 13.5 52.0
Shipping kg 17.7 57.0
Shipping volume m30.13 0.29
Dimensions & Weight Features Electrical Rating Performance
Indoor Unit AWR218CLE
Outdoor Unit AER218SC
2. SPECIFICATION
2-1. Unit Specifications

2-2.Major Component Specifications
2-2-1.Indoor Unit
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Part No. POW-K185QS-N
Controls Microprocessor
Control circuit fuse 250 V – 3 A
Remote Control Unit RCS - 2S1
Type Cross - flow
Q'ty ... Dia. and length mm 1 ... ø100 / L760
Fan motor model ... Q'ty UF2T-21A5PA-S ... 1
No. of poles ... rpm (230 V, High) 2 ... 1,560
Nominal output W20
Coil resistance (Ambient temp. 20°C) ΩWHT – BRN :163.7
WHT – VLT :68.8
VLT – YEL :33.2
YEL – PNK :117.3
Safety Type Internal type
devices Operating temp. Open °C 130 ±8
Close Automatic reclosing
Run capacitor µF1.5
VAC 440
Model M2LJ24ZE31
Rating AC 230 V, 50 Hz
No. of poles ... rpm 8 ... 2.5
Nominal output W3
Coil resistance (Ambient temp. 20°C) kΩ16.45 ±15%
Coil Aluminum plate fin / Copper tube
Rows 2
Fin pitch mm 1.8
Face area m20.192
Heat
Exch. Coil Louver Motor Fan & Fan Motor
Controller
PCB
3
Indoor Unit AWR218CLE

DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Type Rotary (Hermetic)
Compressor model C-2RN170H5W 80807045
Nominal output W1,700
Compressor oil ... Amount cc FV68S ... 800
Coil resistance (Ambient temp. 25°C) ΩC – R : 1.353
C – S : 3.422
Type Internal protector
Safety Overload relay —
devices Operating temp. Open °C Automatic opening
Close °C Automatic reclosing
Operating amp.(Ambient temp. 25°C) —
Run capacitor µF40.0
VAC 400
Type Propeller
Q'ty ... Dia. mm 1 ... ø400
Fan motor model ... Q'ty SG6S-51B5P ... 1
No. of poles ... rpm (230 V) 6 ... 910
Nominal output W50
Coil resistance (Ambient temp. 20°C) ΩWHT – BRN :89.1
WHT – YEL :111.8
YEL – PNK :55.9
Safety Type Internal type
devices Operating temp. Open °C 130 ±8
Close Automatic reclosing
Run capacitor µF2.0
VAC 440
Coil Aluminum plate fin / Copper tube
Rows 2
Fin pitch mm 1.8
Face area m20.508
Heat
Exch. Coil Compressor
Fan & Fan Motor
4
Outdoor Unit AER218SC
2-2-2.Outdoor Unit

2-3.Other Component Specifications
2-3-1.Indoor Unit
5
<AWR218CLE>
<AWR218CLE>
<AWR218CLE>
Thermistor (Room sensor TH2) KTEC-35-S6
Resistance kΩ10°C10.0 ±4% 30°C 4.0 ±4%
15°C 7.9 ±4% 35°C 3.3 ±4%
20°C 6.3 ±4% 40°C 2.7 ±4%
25°C 5.0 ±4% 50°C 1.8 ±4%
Thermistor (Coil sensor TH1) PBC–41E–S4
Resistance kΩ–20°C40.1±5% 20°C 6.5±5%
–10°C24.4±5% 30°C 4.4±5%
0°C15.3±5% 40°C 3.0±5%
10°C 9.9±5% 50°C 2.1±5%
Transformer (TR) ATR-H85
Rating Primary AC 230V, 50Hz
Secondary 11V, 0.727A
Capacity 8VA
Coil resistance Ω(at 21°C) Primary (WHT – WHT): 214 ±10%
Secondary (BRN – BRN): 1.58 ±10%
Thermal cut-off temp. 145°C, 2A, 250V

2-3-2. Outdoor Unit
6
<AER218SC>
<AER218SC>
Thermostat (Fan Speed Control 23S) MQT5S-27YZJ
Switching temp. °C high →LOW 23.5°C ± 1.5
low →HIGH 27.0°C+0
–3
Contact rating AC 220V, 3A
Power Relay (PR) G7L-2A-TUB
Coil rating AC 200–240V, 50/60Hz
Coil resistance Ω(at 23°C) 21 ± 15%
Contact rating AC 220V, 25A

7
3.DIMENSIONAL DATA
Indoor Unit AWR218CLE
Unit : mm
1000
360
205
74
61
49
64
Rear panel (center point of gravity)
Drain hose ø26
Narrow tube ø6.35 (1/4")
Wide tube ø12.7 (1/2")
Center of tubing hole
(for right rear)
Remote control unit
18.5
61
172.5

8
Outdoor Unit AER218SC
Unit : mm
Air discharge
Air intake
538 146
307 337
4 – ø12 holes
199 308
706105
2 – ø6.0 Holes 2 – ø3.5 Extruded holes
830
19
630
380 357
380
146
305
61
95
Wide tube service valve
ø12.7 (1/2")
Narrow tube service valve
ø6.35 (1/4")
4 – ø3.3 Extruded holes

4. REFRIGERANT FLOW DIAGRAM
9
Indoor Unit AWR218CLE Outdoor Unit AER218SC
Compressor
Accumulator
Wide tube
service
valve
Wide tube
O.D.
ø12.7 mm
(1/2 ")
Narrow
tube
service
valve
Narrow tube
O.D.
ø6.35 mm
(1/4")
Condenser
Capillary tube
Capillary for
liquid injection
Indoor Unit Outdoor Unit
Evaporator
Drier

10
Indoor inlet air
D.B. temp. (°C)
Outdoor
fan speed
HighLow
25 30 35 40 45 50
Outdoor inlet air D.B. temp. (°C)
■Cooling Characteristics
13
12
11
10
9
8
7
6
525 30 35 40 45 50
Outdoor inlet air D.B. temp. (°C)
Operating current (A)
14
Indoor inlet air
D.B. temp. (°C)
Outdoor
fan speed
HighLow
1.1 (10)
1.0 ( 9 )
0.9 ( 8 )
0.8 ( 7 )
0.7 ( 6 )
Low pressure at wide tube service valve MPa (kgf/cm2G)
0.6 ( 5 )
0.5 ( 4 )
0.4 ( 3 )
0.3 ( 2 )
0.2 ( 1 )
0.1 ( 0 )
32
27
21
32
27
21
● ...... Points of Rating condition
Black dots in above charts indicate the following rating conditions.
Cooling:Indoor air temperature 27°C D.B./19°C W.B.
Outdoor air temperature 35°C D.B./24°C W.B.
NOTE
Indoor Unit AWR218CLE
Outdoor Unit AER218SC
5. PERFORMANCE DATA
5-1. Performance charts

11
5-2. Air Throw Distance Chart
Indoor Unit AWR218CLE
123456789
0
1
2
3
4
Horizontal distance (m)
Vertical distance (m) Axis air velocity (m/s)
Room air temp.
Fan speed 27°C High
:
:
Axis air velocity
Louver angle 0°
30°

12
Indoor Unit AWR218CLE
Outdoor Unit AER218SC
240V Single Phase 50Hz
RATINGCAPACITY 5.10kW
AIRFLOWRATE 800m3/h
EVAPORATOR CONDENSER
ENT.TEMP. °COUTDOORAMBIENTTEMP. °C
W.B. D.B. 30354045
TC4.69 4.47 4.20 3.86
CM1.90 2.04 2.15 2.25
21SHC3.17 3.05 2.92 2.75
1523SHC3.55 3.44 3.30 3.14
25SHC3.94 3.82 3.69 3.52
27SHC4.33 4.21 4.07 3.86
29SHC4.69 4.47 4.20 3.86
31SHC4.69 4.47 4.20 3.86
TC5.03 4.79 4.51 4.15
CM 1.95 2.09 2.21 2.31
21SHC2.77 2.66 2.52 2.36
1723SHC3.16 3.04 2.91 2.74
25SHC3.55 3.43 3.29 3.13
27SHC3.93 3.81 3.68 3.51
29SHC4.32 4.20 4.06 3.90
31SHC4.70 4.59 4.45 4.15
TC5.36 #5.10 4.79 4.41
CM2.01 2.16 2.28 2.38
21SHC2.36 2.24 2.11 1.94
1923SHC2.74 2.63 2.49 2.33
25SHC3.13 3.01 2.88 2.71
27SHC3.51 3.40 3.26 3.10
29SHC3.90 3.78 3.65 3.48
31SHC4.28 4.17 4.03 3.87
TC5.68 5.41 5.08 4.68
CM2.07 2.22 2.34 2.45
23SHC2.32 2.21 2.07 1.91
2125SHC2.70 2.59 2.46 2.30
27SHC3.09 2.98 2.84 2.68
29SHC3.48 3.36 3.23 3.07
31SHC3.86 3.75 3.61 3.45
TC6.01 5.68 5.31 4.94
CM2.12 2.28 2.41 2.52
2325SHC2.25 2.12 1.99 1.85
27SHC2.64 2.51 2.37 2.24
29SHC3.03 2.90 2.76 2.62
31SHC3.41 3.28 3.14 3.01
TC: Total Cooling Capacity (kW)
SHC:Sensible Heat Capacity (kW)
CM: Compressor Input (kW)
Rating conditions (#Mark) are
Outdoor Ambient Temp. 35°C D.B.
Indoor Unit Entering Air Temp. 27°C D.B. / 19°C W.B.
5-2. Cooling capacity

13
6. ELECTRICAL DATA
6-1. Electrical Characteristics
Indoor Unit Outdoor Unit Complete Unit
Fan Motor Fan Motor Compressor
Performance at 220 / 240V Single phase 50Hz
Rating Conditions Running Amps. A0.28 /0.30 0.40
/
0.42 9.42 /9.29 10.1 /10.0
Power Input kW 0.062 /0.072 0.082
/
0.091 2.056 /2.157 2.20 / 2.32
Full Load Conditions Running Amps. A0.28 /0.30 0.40
/
0.42 11.32 /10.79 12.0 /11.5
Power Input kW 0.062 /0.072 0.082
/
0.091 2.486 / 2.517 2.63 / 2.68
Rating Conditions : Indoor Air Temperature 27°C D.B. / 19°C W.B.
Outdoor Air Temperature 35°C D.B.
Full Load Conditions : Indoor Air Temperature 32°C D.B. / 23°C W.B.
Outdoor Air Temperature 43°C D.B.
Indoor Unit AWR218CLE
Outdoor Unit AER218SC

14
6-2.Electric Wiring Diagrams
To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
WARNING
Indoor Unit AWR218CLE
.

15
To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
WARNING
Outdoor Unit AER218SC

7.FUNCTION
7-1.Room Temperature Control
●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 3 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 after 5 minutes or more 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 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes
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.
Signal from remote control unit
16

7-2.Freeze Prevention
●This function prevents freezing of the indoor heat exchange coil.
●When the compressor has been running for 10 minutes or more and the temperature of the indoor heat
exchange coil falls below –1°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.
ON ON ON ONOFFOFF
Set speed
More than
10 minutes
6 minutes
T+1 °C
Indoor heat exch.
coil temp. –1 °C
Compressor
Indoor fan
Room temp. Thermo. OFF
Thermo. ON
Set temp.T °C
More than
10 minutes
More than
6 minutes
Set speed
17