LG ARNU073MAA4 Ceiling Concealed Duct Mid Static Air Conditioner User Manual

LG ARNU073MAA4 Ceiling Concealed Duct Mid Static Air Conditioner

Specifications

• Type: Ceiling Concealed Duct – Mid Static

• Model: ARNU073MAA4, ARNU093MAA4,
  ARNU123MAA4

• Cooling Capacity: 2.20 kW – 4.00 kW

• Heating Capacity: 1,900 kcal/h – 3,400 kcal/h

• Casing: Galvanized Steel Plate

• Dimensions (W x H x D): 900mm x 245mm x 700mm / 35-7/16″ x 9-21/32″ x 27-9/16″

• Coil Rows x Columns x FPI: 2 x 13 x 18

• Fan Type: Sirocco Fan

• Motor Output: 165W x 1

• Air Flow Rate: 8/7/6 CMM (High/Medium/Low) or 283/247/212 CFM

• Drive: Direct

• Motor Type: BLDC

• Temperature Control: Microprocessor, Thermostat for cooling and heating

• Air Filter: Pre-filter

• Safety Device: Fuse

• Pipe Connections: Liquid Side: 6.35mm (1/4″), Gas Side: 12.7mm (1/2″)

• Drain Pipe (Internal Dia.): 25mm (1″)

• Net Weight: 28.4kg (62.6lbs)

• Sound Pressure Level: 28/27/25 dB(A)+1 (High/Medium/Low)

• Power Supply: 1,208/230V, 60Hz

• Refrigerant Control: EEV (Electronic Expansion Valve)

• Communication Cable: AWG 18 x 2C

Installation

1. Ensure the unit is placed in a suitable location with proper airflow and access for maintenance.
2. Connect the liquid and gas side pipe connections securely according to the specified diameters.

Multi V Air Conditioner
SVC MANUAL(Exploded View)
MODEL : ARNU073MAA4

• ARNU093MAA4
• ARNU123MAA4
• ARNU153MAA4
• ARNU183MAA4
• ARNU243MAA4

CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

Specification

Cooling Capacity

| kW| 2.20| 2.80| 3.60
kcal/ h| 1,900| 2,400| 3,100
Btu/ h| 7,500| 9,600| 12,300

Heating Capacity

| kW| 2.50| 3.20| 4.00
kcal/ h| 2,200| 2,800| 3,400
Btu/ h| 8,500| 10,900| 13,600
Casing| Galvanized Steel Plate| Galvanized Steel Plate| Galvanized Steel Plate
Dimensions (W x H x D)|

Body

| mm| 900 x 245 x 700| 900 x 245 x 700| 900 x 245 x 700
inch| 35-7/ 16 x 9-21/ 32 x 27-9/ 16| 35-7/ 16 x 9-21/ 32 x 27-9/ 16| 35-7/ 16 x 9-21/ 32 x 27-9/ 16

Coil

| Rows x Columns x FPI| 2 × 13 × 18| 2 x 13 x 18| 2 x 13 x 18
Face Area| m2(sq.ft)| 0.19 (2.05)| 0.19 (2.05)| 0.19 (2.05)

Fan

| Type| Sirocco Fan| Sirocco Fan| Sirocco Fan
Motor Output x Number| W| 165 x 1| 165 x 1| 165 x 1
Running Current| A| 1.7| 1.7| 1.7
Air Flow Rate(H/ M/ L) (High Mode-Factory Set) Ext Static Pressure| CMM| 8 / 7 / 6| 10 /  9 / 8| 14 / 12 / 10
CFM| 283 / 247 / 212| 353 / 318 / 283| 494 / 424 / 353
mmAq(in.Aq)| 6(0.24)| 6(0.24)| 6(0.24)
Drive| Direct| Direct| Direct
Motor Type| BLDC| BLDC| BLDC
Temperature Control| Microprocessor, Thermostat for

cooling and heating

| Microprocessor, Thermostat for

cooling and heating

| Microprocessor, Thermostat for

cooling and heating

Sound Absorbing Thermal Insulation Material| Foamed polystrene| Foamed polystrene| Foamed polystrene
Air Filter| Pre-filter| Pre-filter| Pre-filter
Safety Divice| Fuse| Fuse| Fuse

Pipe Connections

| Liquid Side| mm(inch)| Φ6.35 (1/ 4)| Φ6.35 (1/ 4)| Φ6.35 (1/ 4)
Gas Side| mm(inch)| Φ12.7 (1/ 2)| Φ12.7 (1/ 2)| Φ12.7 (1/ 2)
Drain Pipe(Internal Dia.)| mm(inch)| 25 (1)| 25 (1)| 25 (1)
Net Weight| Body| kg(lbs)| 28.4(62.6)| 28.4(62.6)| 28.4(62.6)
Sound Pressure Level (H/ M/ L)| dB(A)+1| 28 / 27 / 25| 28 / 27 / 26| 31 / 29 / 28
Power Supply| Ø, V, H z| 1, 208 / 230, 60| 1, 208 / 230, 60| 1, 208 / 230, 60
Refrigerant Control| –| EEV| EEV| EEV
Communication Cable(VCTF-SB)| AWG × cores| AWG 18 x2C| AWG 18 x2C| AWG 18 x 2C

Notes:

1. Capacities are based on the following conditions:
   Cooling

   • Indoor temp. 27°C[80.6°F]DB/ 19°C[66.2°F]WB

   • Outdoor temp. 35°C[95°F]DB/ 24°C[75.2°F]WB

   • Interconnecting Piping Length 7.5m(24.6ft)

   • Level Difference of Zero
     Heating

   • Indoor temp. 20°C[68°F]DB/ 15°C[59°F]WB

   • Outdoor temp. 7°C[44.6°F]DB/ 6°C[42.8°F]WB

   • Interconnecting Piping Length 7.5m(24.6ft)

   • Level Difference of Zero

2. Capacities are net capacities

3. Due to our policy of innovation some specifications may be changed without prior notification

4. To be added for more available Models

5. EEV : Electronic Expansion Valve

6. Noise Level is High Mode (factory set)

Conversion Formula

• kcal/h= kW x 860
• Btu/h = kW x 3412
• cfm = m3/min x 35.3
• l/s = CMM x 1000/60

Cooling Capacity

| kW| 4.50| 5.60| 7.10
kcal/ h| 3,900| 4,800| 6,100
Btu/ h| 15,400| 19,100| 24,200

Heating Capacity

| kW| 5.00| 6.30| 8.00
kcal/ h| 4,300| 5,400| 6,900
Btu/ h| 17,100| 21,500| 27,300
Casing| Galvanized Steel Plate| Galvanized Steel Plate| Galvanized Steel Plate
Dimensions (W x H x D)|

Body

| mm| 900 x 245 x 700| 900 x 245 x 700| 900 x 245 x 700
inch| 35-7/ 16 x 9-21/ 32 x 27-9/ 16| 35-7/ 16 x 9-21/ 32 x 27-9/ 16| 35-7/ 16 x 9-21/ 32 x 27-9/ 16

Coil

| Rows x Columns x FPI| 2 x 13 x 18| 2 x 13 x 18| 3 x 13 x 18
Face Area| m2(sq.ft)| 0.19 (2.05)| 0.19 (2.05)| 0.19 (2.05)

Fan

| Type| Sirocco Fan| Sirocco Fan| Sirocco Fan
Motor Output x Number| W| 165 x 1| 165 x 1| 165 x 1
Running Current| A| 1.7| 1.7| 1.7
Air Flow Rate(H/ M/ L) (High Mode-Factory Set) Ext Static Pressure| CMM| 15 / 12 / 11| 18 / 15 / 12| 20 / 15.5 / 13
CFM| 530 / 424 / 388| 635 / 530 / 424| 706 / 547 / 459
mmAq(in.Aq)| 6(0.24)| 6(0.24)| 6(0.24)
Drive| Direct| Direct| Direct
Motor Type| BLDC| BLDC| BLDC
Temperature Control| Microprocessor, Thermostat for

cooling and heating

| Microprocessor, Thermostat for

cooling and heating

| Microprocessor, Thermostat for

cooling and heating

Sound Absorbing Thermal Insulation Material| Foamed polystrene| Foamed polystrene| Foamed polystrene
Air Filter| Pre-filter| Pre-filter| Pre-filter
Safety Divice| Fuse| Fuse| Fuse

Pipe Connections

| Liquid Side| mm(inch)| Φ6.35 (1/ 4)| Φ6.35 (1/ 4)| Φ9.52 (3/ 8)
Gas Side| mm(inch)| Φ12.7 (1/ 2)| Φ12.7 (1/ 2)| Φ15.88 (5/ 8)
Drain Pipe(Internal Dia.)| mm(inch)| 25 (1)| 25 (1)| 25 (1)
Net Weight| Body| kg(lbs)| 28.4(62.6)| 28.4(62.6)| 29.7(65.5)
Sound Pressure Level (H/ M/ L)| d B (A )+ 1| 33 / 31 / 29| 36 / 32 / 29| 38 / 33 / 30
Power Supply| Ø, V, Hz| 1, 208 / 230, 60| 1, 208 / 230, 60| 1, 208 / 230, 60
Refrigerant Control| –| EEV| EEV| EEV
Communication Cable(VCTF-SB)| AWG × cores| AWG 18 x 2C| AWG 18 x 2C| AWG 18 x 2C

Notes:-

1. Capacities are based on the following conditions:
   Cooling

   • Indoor temp. 27°C[80.6°F]DB/ 19°C[66.2°F]WB

   • Outdoor temp. 35°C[95°F]DB/ 24°C[75.2°F]WB

   • Interconnecting Piping Length 7.5m(24.6ft)

   • Level Difference of Zero
     Heating

   • Indoor temp. 20°C[68°F]DB/ 15°C[59°F]WB

   • Outdoor temp. 7°C[44.6°F]DB/ 6°C[42.8°F]WB

   • Interconnecting Piping Length 7.5m(24.6ft)

   • Level Difference of Zero

2. Capacities are net capacities

3. Due to our policy of innovation some specifications may be changed without prior notification

4. To be added for more available Models

5. EEV : Electronic Expansion Valve

6. Noise Level is High Mode (factory set)

Conversion Formula

• kcal/h= kW x 860
• Btu/h = kW x 3412
• cfm = m3/min x 35.3
• l/s = CMM x 1000/60

List of Functions

Category

|

Function

|

ARNU073MAA4, ARNU093MAA4, ARNU123MAA4 ARNU153MAA4, ARNU183MAA4, ARNU243MAA4

---|---|---

Air flow

| Air supply outlet| 1
Airflow direction control(left & right)| –
Airflow direction control(up & down)| –
Auto swing(left & right)| –
Auto swing(up & down)| –
Airflow steps(fan/cool/heat)| 3/3/3
Chaos swing| –
Chaos wind(auto wind)| –
Jet cool(Power wind)| –
Swirl wind| –

Air purifying

| Deodorizing filter| X
Plasma air purifier| X
Prefilter(washable)| O

Installation

| Drain pump| O
E.S.P. control| O
Electric heater(operation)| X
High ceiling operation| –
Vertical installation kit| ABDAMA0
Reliability| Hot start| O
Self diagnosis| O

Convenience

| Auto changeover| O (Heat recovery only)
Auto cleaning| O
Auto operation(artificial intelligence)| O (Heat pump or cooling only)
Auto restart operation| O
Child lock| O
Forced operation| –
Group control| O
Sleep mode| O
Timer(on/off)| O
Timer(weekly)| O
Two thermistor control| O
Individual control| LG Multi SITETM Remote Controller

(With Occupancy Sensor)

|

PREMTBVC1

LG Multi SITETM

Remote Controller

| PREMTBVC0
Premium| PREMTA000
Simple| PREMTC00U
Wireless Remote Controller| PQWRHQ0FDB

• O : Applied X : Not applied – : No relation
• Option : Model name & price are different according to options, and assembled in factory with main unit.
• Accessory : Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate package.

Piping Diagrams

Wiring Diagrams

ARNU073MAA4, ARNU093MAA4, ARNU123MAA4, ARNU153MAA4, ARNU183MAA4, ARNU243MAA4

DIP Switch Setting

Indoor Unit

| Function| Description| Setting Off| Setting On| Default
---|---|---|---|---|---
SW1| Communication| N/A (Default)| –| –| Off
SW2| Cycle| N/A (Default)| –| –| Off
SW3| Group Control| Selection of Master or Slave| Master| Slave| Off
SW4| Dry Contact Mode| Selection of Dry Contact Mode| Wired/Wireless remote controller

Selection of Manual or Auto operation Mode

| ****

Auto

| ****

Off

SW5| Installation| Fan continuous operation| Continuous operation Removall| –| Off
SW6| Heater linkage| N/A| –| –| Off
SW7| Ventilator linkage| Selection of Ventilator linkage| Linkage Removal| Working| ****

Off

Vane selection (Console)| Selection of up/down side Vane| Up side + Down side Vane| Up side Vane Only
Region selection| Selection tropical region| General model| Tropical model
SW8| Etc.| Spare| –| –| Off

For Multi V Models, DIP switch 1, 2, 6, 8 must be set OFF.

Outdoor Unit
In case that the products meet specific conditions, “Auto addressing” function can start automatically with the im-proved speed by turning the DIP switch #3 of the outdoor unit and resetting the power.

* Specific conditions:

• All names of the indoor units are ARNU****4.
• The serial number of Multi V super IV (outdoor units) is after October 2013.

Exploded View

Self-diagnosis function

Error Indicator

• This function indicates types of failure in self-diagnosis and occurrence of failure for air condition.
• Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of outdoor unit control board as shown in the table.
• If more than two troubles occur simultaneously, lower number of error code is first displayed.
• After error occurrence, if error is released, error LED is also released simultaneously.

Error Display

1st,2nd,3rd LED of 7-segment indicates error number, 4th LED indicates unit number. Indicates unit number.
(* = 1:Master, 2 : Slave 1, 3 : Slave 2)

• Ex) 211 : No.21 error of master unit
• 213 : No.21 error of slave2
• 1051 : No.105 error of master unit

Refer to the DX-Venitilation manual for DX-Venitilation error code

sensor of indoor unit is open or short

0

|

3

|

–

| Communication error : wired remote controller indoor unit|

Failing to receive wired remote controller signal in indoor unit PCB

0| 4| –| Drain pump| Malfunction of drain pump

0

|

5

|

–

| Communication error : Indoor communication PCB      indoor unit| Indoor Unit PCB did not receive signal from Indoor communication PCB for over 3 minutes continuously
0| 6| –| Outlet pipe temperature sensor of indoor unit| Outlet pipe temperature sensor of indoor unit is open or short

0

|

9

|

–

| Indoor EEPROM Error| In case when the serial number marked on EEPROM of Indoor unit is 0 or FFFFFF

1

|

0

|

–

| Poor fan motor operation| Disconnecting the fan motor connector / Failure of indoor fan motor lock
2| 3| 0| Refrigerant leakage sensing error| Refrigerant leakage sensing error and sensor defect error

2

|

3

|

7

| Communication defect in indoor communication PCB      outdoor communication PCB| Indoor communication PCB did not receive signal from outdoor communication PCB for over 3 minutes continuously

2

|

3

|

8

| Communication error in outdoor communication PCB      outdoor unit| Outdoor communication PCB did not receive communication sig- nal from outdoor unit for over 3 minutes continuously

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