LG 6RWU0-05A Product guide

6RWU0-05A
PTAC Type
(60Hz/R410A)

2
PTAC
PTAC
Introduction
Part 1 General information
1. Model line up ....................................................................................12
2. Nomenclature ...................................................................................13
3. Appearance.......................................................................................14
4. List of functions ...............................................................................15
5. Features ............................................................................................16

3
PTAC
Part 2 Product data
1 YA chassis ........................................................................................22
1.1 Features........................................................................................................22
1.2 List of functions.............................................................................................23
1.3 Specifications................................................................................................24
1.4 Dimensions ...................................................................................................30
1.5 Piping diagrams ............................................................................................31
1.6 Wiring diagrams............................................................................................33
1.7 Capacity tables .............................................................................................35
1.8 Electrical characteristics ...............................................................................43
1.9 Operation range............................................................................................44
2 Control Devices...............................................................................45
2.1 Electronic Controls........................................................................................45
1.10 Sound level test method...............................................................................44

4
PTAC
Part 3 Design and installation
1 General installation procedure........................................................51
2 Installation of unit.............................................................................52
2.1 Safety precautions.........................................................................................52
2.2 Points of explanation about operations .........................................................55
2.3 Selecting installation site for the unit .............................................................55
2.4 Installation of unit...........................................................................................56
2.5 Wall sleeve installation ..................................................................................58

5
PTAC
Part 4 Accessories
1 Controller accessories ....................................................................65
1.1 Hard Wire kit .................................................................................................65
1.2 Wired Wall Thermostat Connection Kit .........................................................67
2 Mechanical accessories ..................................................................68
2.1 Control Panel Key Lock ................................................................................68
2.2 Outer Grille ....................................................................................................69
2.3 Condensate Drain Kit ....................................................................................71
2.4 Leveling Legs ................................................................................................73
2.5 Sub Base ......................................................................................................74
2.6 Lateral Duct Accessory System ...................................................................76
2.7 Replacement Filter - 10 Pack ........................................................................79
2.8 Wall Sleeve ...................................................................................................79
2.9 Folding Wall Sleeve ......................................................................................79
2.10 Remote Escutcheon Kit – 10 pack ..............................................................80
2.11 Vent Filter ....................................................................................................81
3 Power cord accessories ...................................................................82
3.1 Power cord .....................................................................................................82

6 General information
Test condition of International Standards
PTAC
6RWU0-05B
Test condition of International Standards
CLASSIFICATION KSC ISO AHRI AHAM AS SSA
9306 5151 210/240 1861.1 385
Indoor DB°C(°F) 27.0 27.0 26.7(80) 26.7(80) 27.0 29.0
Cooling WB°C(°F) 19.5 19.0 19.4(67) 19.4(67) 19.0 19.0
Capacity Outdoor DB°C(°F) 35.0 35.0 35.0(95) 35.0(95) 35.0 46.0
WB°C(°F) 24.0 24.0 23.9(75) 23.9(75) 24.0 24.0
Indoor DB°C(°F) 20.0 20.0 21.1(70) 21.1(70) 21.0 21.0
Heating WB°C(°F) 15.0 15.0 15.6(60) 15.6(60) 15.0 15.5
Capacity Outdoor DB°C(°F) 7.0 7.0 8.3(47) 8.3(47) 7.0 7.0
WB°C(°F) 6.0 6.0 6.1(43) 6.1(43) 6.0 6.0
Indoor DB°C(°F) 32.0 32.0 26.7(80) 32.2(90) 32.0 29.0
Maximum WB°C(°F) 23.0 23.0 19.4(67) 22.8(73) 23.0 19.0
Cooling Outdoor DB°C(°F) 43.0 43.0 46.1(115) 43.3(110) 43.0 54.0
Operating WB°C(°F) 26.0 26.0 23.9(75) 25.6(78) 26.0 24.0
Indoor DB°C(°F) 27.0 27.0 26.7(80) 26.7(80) - -
Maximum WB°C(°F) 19.0 19.0 19.4(67) 22.8(73) - -
Heating Outdoor DB°C(°F) 21.0 24.0 23.9(75) 23.9(75) - -
Operating WB°C(°F) 15.0 18.0 18.3(65) 18.3(65) - -
Enclosure Indoor DB°C(°F) 27.0 27.0 26.7(80) 26.7(80) 27.0 27.0
Sweat / WB°C(°F) 24.0 24.0 23.9(75) 23.9(75) 24.0 24.0
Condensate Outdoor DB°C(°F) 27.0 27.0 26.7(80) 26.7(80) 27.0 27.0
Disposal WB°C(°F) 24.0 24.0 23.9(75) 23.9(75) 24.0 24.0
Freeze-up/ Indoor DB°C(°F) 21.0 21.0 19.4(67) 21.1(70) 21.0 21.0
LowWB°C(°F) 15.0 15.0 13.9(57) 15.6(60) 16.0 16.0
Temperature
Outdoor DB°C(°F) 21.0 21.0 19.4(67) 21.1(70) 21.0 21.0
WB°C(°F) 15.0 15.0 13.9(57) 15.6(60) 16.0 16.0
KS : Korea Standard AS : Australia Standard
ISO : International Standard Organization SSA : Saudi Arabian Standard
AHRI : Airconditioning, Heating & Refrigeration Institute
AHAM : Association of Home Appliance Manufacturers
In the table above, temperatures are expressed in Fahrenheit(°F) within parentheses only for ARI and AHAM stan-
dards.

General information 7
Introduction
PTAC
Introduction
Preface
Air Conditioning & Energy Solution Company
Packaged Terminal Air-Conditioners(PTAC) of LG is the best choice a customer can avail when it comes to a quiet environ-
ment. Ultra quiet operation is the hallmark of these Air-Conditioners of LG. This range of units is suitable for Hotels and
Healthcare applications. These units have extremely low noise levels and outstanding sound prevention ratings. Moreover,
these units have higher Energy ratings which results in excellent energy savings.
These units are also provided with unique features to provide better usability and easy installation for the user.
The capacity of these PTAC models ranges from 7,000 Btu/h to 15,000 Btu/h.
Some of the important features of this unit are as follows:-
Long term money saving: By providing features such as Gold Fin etc... to maintain the same performance throughout the life
of the Air-Conditioner.
Comfort : With features such as Wall Thermostat temperature control, Auto Restart, etc…, which gives ultimate comfort to
our customer.
These units are equipped with many standard and optional features for our customers. For details, please refer to the
detailed specification following this description.
6RWU0-05B

8 General information
Introduction
PTAC
6RWU0-05B
Publication History
Pub. No. Frequency Category Product name Refrigerant Notes Published in
6RWU0 - 01A 60Hz RAC PTAC R410A New Edition of PDB Apr.2010
6RWU0 - 01B
6RWU0 – 01C
60Hz RAC PTAC R410A Spec sheet update June.2010
60Hz RAC PTAC R410A Spec sheet update August. 2010
6RWU0 – 01D 60Hz RAC PTAC R410A Add Operation range Dec. 2010
6RWU0 – 02A 60Hz RAC PTAC R410A 2011 New line-up update
6RWU0 – 02B 60Hz RAC PTAC R410A Modified Capacity Table
Apr. 2011
Apr. 2012
6RWU0 – 02C 60Hz RAC PTAC R410A Spec Sheet Update Apr. 2012
6RWU0-03A 60Hz RAC PTAC R410A 2013 Model Line Up Mar, 2013
6RWU0-03B 60Hz RAC PTAC R410A Update additional accessories Jun,2014
6RWU0-04A 60Hz RAC PTAC R410A 2016 Model Line UP Jun,2016
6RWU0-04B 60Hz RAC PTAC R410A Spec Sheet Update Feb,2017
6RWU0-05A 60Hz RAC PTAC R410A 2017 Model Line UP Aug,2017
6RWU0-05B 60Hz RAC PTAC R410A Spec sheet update (add gross weight) Nov,2017

General information 9
Introduction
PTAC
6RWU0-05B
Step by step air conditioner selection process (reference)
(1) Calculate or obtain the maximum heat load for the area to be air conditioned.
(2)
(3)
1. Air conditioners should not be installed in areas where corrosive gases such as acid gas or
alkaline gas are present.
CAUTION
Selection of the control system
Remote Wall Thermostat Control
Front Desk Control
Specifications
Model features and functions
Air-flow and temperature distribution
Note :
Here in this PDB, the temperature units are generally expressed in Fahrenheit (°F) but for specific regions
please conform to local standards whenever necessary.

10 General information
PTAC
6RWU0-05B

General information 11
PTAC
Part 1 General information
1. Model line up .......................................................................................12
2. Nomenclature ......................................................................................13
3. Appearance..........................................................................................14
4. List of functions ..................................................................................15
5. Features ...............................................................................................16

12 General information
PTAC
6RWU0-05B
1. Model line up
Model line up
2.05(7) 2.64(9) 3.52(12) 4.4(15)
YA
Model names
Capacity, kW(kBtu/h)
Chassis
UYC073ALEU1(LP073CDUC)
UYH073ALEU1(LP073HDUC)
UYC093ALEU1(LP093CDUC)
Y4NZ09ANLD1(LP093HDUC1)
UYC09EALE31(LP096CD3B)
UYH09EALE31(LP096HD3B)
UYC123ALEU1(LP123CDUC)
Y4NZ12ANLD1(LP123HDUC1)
UYC12EALE31(LP126CD3B)
UYH12EALE31(LP126HD3B)
UYC153ALEU1(LP153CDUC)
UYH153ALEU1(LP153HDUC)

General information 13
2. Nomenclature
PTAC
6RWU0-05BNomenclature
Global standard
[New version]
Y4NZ09ANLD1
Model Development serial number.
Function
Production type
Chassis : A – YA chassis.
Capacity
N: In house
S: Outsourcing
Look
L: LG Brand
Operation type
Set Type
N: Indoor unit
M: Mock-up
2: R22
3: R32
4: R410A
C: C/O
H: H/P
Q: DC Inverter C/O
M: DC Inverter H/P Multi-Compatible
X: C/O + E/Heater
Z: H/P + E/Heater
W: DC Inverter H/P
Product
Production Center, Refrigerant
W: Window Air Conditioner
Y: Packaged Terminal Air Conditioner
X: Through the Wall Air Conditioner
E: Casement Air Conditioner
U: SPVU Air Conditioner
L: Console Air Conditioner
Q: Low Profile Air Conditioner
P: Portable Air Conditioner
Ex) 07 -> 7,000 Btu/h Class
A
B
C
D
E
F
G
H
J
2kW~5kW (Universal Heater)
2kW
3kW
2kW~5kW (Universal Heater)
2kW
3kW
2kW~5kW (Universal Heater)
2kW
3kW
Fan Mode + Auto Restart + Evaporator Frost Control +
Freeze Room Protection + 4-Way Cooling
Fan Mode + Auto Restart + Evaporator Frost Control +
Freeze Room Protection + 4-Way Cooling +
Target Temp. display
Fan Mode + Auto Restart + Evaporator Frost Control +
Freeze Room Protection + 4-Way Cooling +
Condensate Pump
Note : The old version Nomenclature at the page 83 of this book.

14 General information
PTAC
6RWU0-05B
3. Appearance
Chassis Unit Models
YA
UYC073ALEU1(LP073CDUC)
UYH073ALEU1(LP073HDUC)
UYC093ALEU1(LP093CDUC)
Y4NZ09ANLD1(LP093HDUC1)
UYC09EALE31(LP096CD3B)
UYH09EALE31(LP096HD3B)
UYC123ALEU1(LP123CDUC)
Y4NZ12ANLD1(LP123HDUC1)
UYC12EALE31(LP126CD3B)
UYH12EALE31(LP126HD3B)
UYC153ALEU1(LP153CDUC)
UYH153ALEU1(LP153HDUC)
Appearance

General information 15
PTAC
6RWU0-05B
4. List of functions
Function Category
PTAC Type
Cooling only Models
PTAC Type
Heat Pump Models
Air discharge type Top discharge Top discharge
Airflow direction control (up & down) Manual Manual
Airflow direction control (left & right) - -
Auto swing - -
Airflow steps (fan/cool/heat) 2/2/2 2/2/2
Airflow Direction 2 way 2 way
Deodorizing filter - -
Plasma air filter - -
Air filter (washable / anti-fungus) O O
Electric heater (operation) O O
Hot start - -
Auto restart operation O O
Micom control O O
Air ventilation O O
Forced operation - -
Sleep mode - -
Timer O O
Wired remote control O O
Wireless remote control O O
Energy save mode O O
Thermistor O O
O : applied
- : not applied
Air flow
Air purifying
Installation
Reliability
Convenience
Individual
control
Others
List of functions

16 General information
PTAC
6RWU0-05B
5. Features
The following features can be found in PTAC (Packaged Terminal Air-Conditioners) :-
n2 -Way Air Flow Direction
nWashable Filters
nLow Noise at High Air Volume
nHigh Efficiency Compressor
nEnergy Saver Mode
nTimer
nElectric Heater
nDefrost Control
nAir Ventilation
nEnergy saving Anti-corrosion treated Fins
nInfinite Impulse Response(IIR)
nCompressor Restart Delay
nFan Only Setting
nIndoor Fan Speed Setting
nTwo Fan Motors
nLED Diagnostics and Self Diagnostics
nIndoor Room Freeze Protection
nCompressor Overload Protection
nOutdoor Air Temperature Switchover
nTemperature Limits
nCondensate Drain Valve
nQuick Heater Recovery
nReverse Cycle Defrosting (PTHP’s only)
n
High Temperature Heat Pump Operation Protection
nRemote Thermostat Control
nSlinger Technology
2 -Way Air Flow Direction
Air Flow can be adjusted by changing the direction of the air conditioner’s louvers at an angle of 15-40° off vertical to attain the
desired level of comfort and convenience. This can also increase the cooling efficiency of the air conditioner.
In order to attain maximum cooling efficiency, adjust the louvers so that they face upwards.
40° 15°
Features

General information 17
PTAC
6RWU0-05B
Washable Filters
The Unit uses two filters on the indoor side which can be slide easily. These filters can be taken out without removing the
Front Grille and then cleaned by washing or brushing.
The filters should be checked and cleaned every two(2) weeks or as necessary to maintain the optimal performance of the
air conditioner depending upon the region and purpose of application.
Low Noise at High Air Volume
New Blowers and Fans which are bigger and stronger than earlier ones operate at low rpm’s and have higher efficiency.
High Efficiency Compressor
LG Rotary compressors have low noise, low vibration and higher efficiency and
reliability.
Energy save mode
This feature employs a programmable logic which enables the unit to minimize power consumption. When the switch is acti-
vated in the “on” position, the Indoor fan turns off as soon as the compressor stops running. And in the “off” mode, the
indoor fan runs continuously even if the compressor stops running.
Timer
By this feature we can set the operating time of the air conditioner from one(1) hour up to a time of 12 hours. In the “Off”
mode, the Air Conditioner stops operating after the set time, while in the “On” mode, the Air Conditioner timer can be set so
that the unit starts operating at the desired time.
Features

18 General information
PTAC
6RWU0-05B
Electric Heater
Electric heaters are used in cold regions when instant heating is
required in the room.
In such cases, electric heaters are preferred over heat pump models which
sometimes require long times to achieve the desired heating effect.
Electric Heater are of two types – Coil Heater (265 V) and PTC
Heater (208-230 V) With different heater capacity according to models.
Defrost Control
When the unit starts operating in the heating mode outdoor unit
start freezing, to protect from freezing, Defrost Control is used.
Defrost operation take place when pipe temperature reaches
-1℃(30℉),
Type/Capacity
2.5kW 3kW 5kW
Coil Heater (265 V) - 9K 12K -
Type/Capacity 2.4kW / 3.3kW / 4.7kW
PTC Heater
(208-230 V) 7K 9K 12K 15K
T(OD air temp – OD pipe temp)≥12 ℃(54℉).
Defrost condition operates minimum 3minutes and maximum 9minutes for complete one cycle.
Air Ventilation
Air ventilation is carried out by means of a ventilation lever from
time to time to induct outside air into the room. For the air condi-
tioner to maintain the best cooling conditions, the lever must be
in the closed position.
Energy saving Gold Fin
Heat exchangers are coated with anti-corrosive and Hydrophilic layers. It prevents the corrosion of heat exchanger.
Fins remain new for a long time and the efficiency of the heat exchanger remains constant thereby saving power and
maintenance cost.
Fig : Coil Heater
Fig : PTC Heater
Features
VENT
OPEN
VENT
CLOSE
Gold Fin Anti-Corrosive Treatment:
Salt Spray Test Result : After 360 hours
[ Test Standard: ASTM B-117, KS D 9502 ]
[ Aluminum]
10 mm
Pitting Corrosion
Uncoated
Aluminum
10 mm
Anti Corrosion Gold Fin
Hydrophilic
layer
Aluminum
Anticorrosion
layer
Anti Corrosion Gold Fin
•Pitting corrosion
on the surface No corrosion
Fig : PTC Heater

General information 19
PTAC
6RWU0-05B
Infinite Impulse Response (IIR)
The IIR function senses the temperature several times per second and make micro adjustments accordingly.
Compressor Restart Delay
This feature extends the overall life of the compressor by preventing the short cycling of the air-conditioner. When the com-
pressor restarts, LG PTAC is designed to give it a minimum of three minutes to have a time of equalizing the refrigerant
pressures for optimizing the cycle.
Fan Only Setting
When the Fan only setting is made, only the fan on the indoor side operates while the compressor stops operating and the
unit ceases to run in the Cooling or the Heating mode.
Indoor Fan Speed Setting
The Indoor fan can run at HIGH or LOW speed for either COOLING or HEATING operation.
Two Fan Motors
The air conditioning unit has dual BLDC motor, one is for indoor fan and other one for outdoor fan for providing a quiet oper-
ation and maximum efficiency.
LED Diagnostics and Self Diagnostics
LED Diagnostics feature indicates the problem by its easy to read diagnostics, when the unit does not operate properly. For
example, one blink every 2 seconds indicates compressor failure.
While Self Diagnostics feature is used in micom models and it indicates the problem by displaying a set of error codes.
Indoor Room Freeze Protection
When the unit senses the room temperature to be less than 40˚ F, the unit activates the fan motor and either the electric
resistance heater or the hydronic heater, to prevent the pipes or fixtures from freezing. This also overrides the front desk
control of the unit mounted controls or the wall mounted controls.
Compressor Overload Protection
This feature prevents damage of the compressor by sensing the indoor coil temperature during the heating mode. If the
indoor coil temperature is over 54℃(130℉), the outdoor fan is switched off and it operates again only when the temperature
drops below 49℃(120℉).
Features

20 General information
PTAC
6RWU0-05B
Outdoor Air Temperature Switchover
For Heat pump models during the heating mode, if outdoor temp below 33℉(0.6 ℃), the Comp. is OFF and Heating Mode
is operated by Heater. If outdoor temp reaches 38 ℉(3.3 ℃) Comp. and Heater on/off controlling based on the indoor temp.
However, during normal Heating mode restoration, if in the state of ON, the Heater will continue to operate until desired
temp + 0.5 ℉ and above is reached before being turned OFF. If the Heater is at off state, it remained OFF until Comp. on
condition (desired temp -1.5 ℉ and below) is reached.
Temperature Limits
The unit is programmed to provide both heating and cooling temperature limits by dip switches on the control panel. The
limits are from 54 °F ~ 86 °F (12.2 °C ~ 30 °C). These temperature limits help to prevent overheating and overcooling there-
by reducing the energy costs.
Condensate Drain Valve
The most widely used method of disposing of heat pump condensate is with a temperature-activated drain valve. This is a
device mounted in the base pan of a heat pump unit with a bellows that expands on temperature rise and contracts with
temperature drop. A shaft with a rubber plug on the end is connected to the bellows. When the outdoor temperature remains
above a certain temperature, the bellows is expanded and the plug fits tightly into a hole in the bottom, or base pan, of the
unit. When the plug is blocking the hole, as it should be during cooling operation, the condensate water is contained in the
base pan. At temperatures when heating is required, the bellows contracts, the rubber plug is retracted from the hole and
the heat pump condensate water is allowed to drain into the wall case. The valve is fully open at approximately 45 °F.
Quick Heater Recovery
The unit is designed to operate the electric heater so as to warm the room to the desired temperature set point as soon as the Heat
Pump cycle operates. This feature has an advantage of reducing the time to reach the desired temperature for better comfort.
Reverse Cycle Defrosting – PTHP Only
This feature enables the unit to activate the reverse cycle defrost so as to prevent the formation of ice on the outdoor unit,
which is exposed to cold environment. Formation of ice reduces the airflow through the coil and hence the efficiency of the
air conditioning unit. The LG PTHP employs an active reverse cycle defrost function to melt the ice off the outdoor coil for
ensuring room comfort conditions and savings from extended operation.
High Temperature Heat Pump Operation Protection
When the unit operates at high outdoor temperature conditions during the cooling cycle, this feature switches off the com-
pressor to prevent damage.
Remote Thermostat Control
The PTAC air conditioning unit is designed and built to be operated by a wired or wireless remote mounted thermostat if
desired. The unit has a built-in low voltage power source which can accommodate any of the thermostat choices – manual,
auto changeover or programmable. A remote thermostat can also be added to any unit.
Slinger Technology
The PTAC air conditioner is equipped with an outdoor fan includes outer ring that takes condensate water during cooling
operation from the base pan and dispense it through the condenser, increasing the unit’s efficiency.
Features