Page 1
INSTALLATION MANUAL
AIR
CONDITIONER
ENGLISH FRANÇAIS
ESPAÑOL
Please read this installation manual completely before installing the product.
Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
Please retain this installation manual for future reference after reading it
thoroughly.
Ceiling Concealed Duct - Low Static
http://www.lghvac.com
MFL42803121
Rev.00_051017
Copyright © 2008 - 2018 LG Electronics Inc. All Rights Reserved.
www.lg.com
Page 2
IMPORTANT!
Please read this instruction sheet completely before installing the product.
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.
WARNING
• Installation or repairs made by unqualified persons can result in hazards to you and others.
Installation of all field wiring and components MUST conform with local building codes or, in the absence of local
codes, with the National Electrical Code 70 and the National Building Construction and Safety Code or Canadian
Electrical code and National Building Code of Canada.
• The information contained in the manual is intended for use by a qualified service technician familiar with safety
procedures and equipped with the proper tools and test instruments.
• Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property
damage, personal injury and/or death.
CAUTION
Safety Precautions
NOTE TO INSTALLING DEALER: The Owners Instructions and Warranty are to be given to the owner
: Improper installation, adjustment, alteration, service or maintenance can void the warranty.
The weight of the condensing unit requires caution and proper handling procedures when lifting
or moving to avoid personal injury. Use care to avoid contact with sharp or pointed edges.
• Always wear safety eye wear and work gloves when installing equipment.
• Never assume electrical power is disconnected. Check with meter and equipment.
• Keep hands out of fan areas when power is connected to equipment.
• R-410A causes frostbite burns.
• R-410A is toxic when burned.
or prominently displayed near the indoor Furnace/Air Handler Unit.
Special warnings
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.
•
•
The choice of materials and installations must comply with the applicable local/national or international standards.
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 finger.
When installing...
... in a wall: Make sure the wall is strong enough to hold the unit's weight.
... in a room: Properly insulate any tubing run inside a room to prevent "sweating" that can cause
... in moist or uneven locatinons: Use a raised concrete pad or concrete blocks provide a solid,
... in an area with high winds: Securely anchor the outdoor unit down with bolts and a metal
... in a snowy area(for Heat Pump Model): Install the outdoor unit on a raised platform that is
When connecting refrigerant tubing
• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
• 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.
It may be necessary to construct a strong wood or metal frame to provide added support.
dripping and water damage to wall and floors.
level foundation for the outdoor unit. This prevents water damage and abnormal vibration.
frame. Provide a suitable air baffle.
higher than drifting snow. Provide snow vents.
2 Indoor Unit
Page 3
Ceiling Concealed Duct - Low Static Type Indoor Unit Installation Manual
TABLE OF CONTENTS
ENGLISH
Installation Requirements
Safety Precautions.................4
Introduction .............................6
Installation ...............................7
Selection of the best
location ...................................7
Ceiling opening dimension
and hanging bolt location ......8
Indoor Unit Installation...........9
Wiring Connection .................9
Part name and functions .....11
Plumbing materials and stor-
age methods ........................12
Required Parts Required Tools
o Level gauge
o Four type "A" screws
o Connecting cable
o Pipes: Gas side
Liquid side
(Refer to Product
Data)
o Insulation materials
o Additional drain pipe
o Screw driver
o Electric drill
o Hole core drill
o Flaring tool set
o Specified torque wrenches
(different depending on model No.)
o Spanner .......Half union
o A glass of water
o Screw driver
o Hexagonal wrench
o Gas-leak detector
o Vacuum pump
o Gauge manifold
Checking the Drainage........14
Drain Piping .........................15
Dip Switch Setting of Indoor unit
PCB.........................................18
Group Control Setting ............19
o Owner's manual
o Thermometer
Installation Manual 3
Page 4
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
n Be sure to read before installing the air conditioner.
n Be sure to observe the cautions specified here as they include important items related to safety.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the
following indications.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
n Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
Installation
• Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated
circuit.
- There is risk of fire or electric shock.
• For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized
Service Center.
- Do not disassemble or repair the product. There is risk of fire or electric shock.
• Always ground the product.
- There is risk of fire or electric shock.
• Install the panel and the cover of control box securely.
- There is risk of fire or electric shock.
• Always install a dedicated circuit and breaker.
- Improper wiring or installation may cause fire or electric shock.
• Use the correctly rated breaker or fuse.
- There is risk of fire or electric shock.
• Do not modify or extend the power cable.
- There is risk of fire or electric shock.
• Do not let the air conditioner run for a long time when the humidity is very high and a door
or a window is left open.
- Moisture may condense and wet or damage furniture.
• Be cautious when unpacking and installing the product.
- Sharp edges could cause injury. Be especially careful of the case edges and the fins on
the condenser and evaporator.
4 Indoor Unit
Page 5
Safety Precautions
• For installation, always contact the dealer or an Authorized Service Center.
- There is risk of fire, electric shock, explosion, or injury.
• Do not install the product on a defective installation stand.
- It may cause injury, accident, or damage to the product.
• Be sure the installation area does not deteriorate with age.
- If the base collapses, the air conditioner could fall with it, causing property damage,
product failure, and personal injury.
• Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not
compress air or oxygen and do not use flammable gases. Otherwise, it may cause fire or
explosion.
- There is the risk of death, injury, fire or explosion.
Operation
• Do not store or use flammable gas or combustibles near the product.
- There is risk of fire or failure of product.
ENGLISH
Installation
• Always check for gas (refrigerant) leakage after installation or repair of product.
- Low refrigerant levels may cause failure of product.
• Install the drain hose to ensure that water is drained away properly.
- A bad connection may cause water leakage.
• Keep level even when installing the product.
- To avoid vibration or water leakage.
• Do not install the product where the noise or hot air from the outdoor unit could damage the
neighborhoods.
- It may cause a problem for your neighbors.
• Use two or more people to lift and transport the product.
- Avoid personal injury.
• Do not install the product where it will be exposed to sea wind (salt spray) directly.
- It may cause corrosion on the product. Corrosion, particularly on the condenser and
evaporator fins, could cause product malfunction or inefficient operation.
• If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the
remote if the batteries have leaked.
- The chemicals in batteries could cause burns or other health hazards.
Installation Manual 5
Page 6
Introduction
Introduction
Symbols Used in this Manual
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
NOTICE
Features
This symbol indicates special notes.
Low static Duct type
Air filters
Air outlet vents
Wired Remote Controller
TEMP
Remote Controller
6 Indoor Unit
Page 7
Installation
A(Min)
B(Min)
Ceiling
Service Space
A
B
H=20(25/32) or more
600
(23-5/8)
600
(23-5/8)
Top view
Front view
Inspection hole
600(23-5/8)X600(23-5/8)
Control box
* Suitable dimension “H” is necessary to get a slope to
drain as show in the figure.
Unit : mm(inch)
Selection of the best location
Indoor unit
Install the air conditioner in the location that satisfies the following conditions.
• The place shall easily bear a load exceeding four times the
indoor unit’s weight.
• The place shall be able to inspect the unit as the figure.
• The place where the unit shall be leveled.
• The place shall easily connect with the outdoor unit.
• The place where the unit is not affected by an electrical
noise.
• The place where air circulation in the room will be good .
• There should not be any heat source or steam near the
unit
Confirm the positional relationship between the unit and
suspension bolts.
• Installation the ceiling opening to clean the filter or service
under the product.
Capacity(Btu/h) A B
7/9/12/15k 600(23-5/8) 900(35-7/16)
18/24k 600(23-5/8) 1,100(43-5/16)
Unit:mm(inch)
Introduction
ENGLISH
Low static Duct type
Installation Manual 7
Page 8
Installation
Ceiling dimension and hanging bolt location
Installation of Unit
Install the unit above the ceiling correctly.
CASE 1
POSITION OF SUSPENSION BOLT
• Apply a joint-canvas between the unit and duct to absorb
unnecessary vibration.
• Apply a filter Accessory at air return hole.
[Unit: mm(inch)]
Dimension
Chassis
7/9/12/15k BTU/h
18/24k BTU/h
ABCDEFGHI J
850 900 383 575 93 190 21 795 163 820
(33-7/16) (35-7/16) 383(15) (22-5/8) (3-11/16) (7-7/16) (7/8) (31-5/16) (6-7/16) (32-5/16)
1130 1180 383 575 93 190 21 1065 163 1100
(44-7/16) (46-7/16) 383(15) (22-5/8) (3-11/16) (7-7/16) (7/8) (41-15/16) (6-7/16) (43-5/16)
G
Drainage hole
B
A
J
H
Drain Pump use
D
CE
I
F
CASE 2
• Install the unit leaning to a drainage hole side as a figure
for easy water drainage.
POSITION OF CONSOLE BOLT
• A place where the unit will be leveled and that can support
the weight of the unit.
• A place where the unit can withstand its vibration.
• A place where service can be easily performed.
M10 Nut
M10 SP. washer
M10 washer
M10 washer
M10 SP. washer
M10 Nut
X 4
X 4
X 4
X 4
X 4
X 4
(Local
supply)
(Local
supply)
8 Indoor Unit
Page 9
Indoor Unit Installation
Installation
ENGLISH
• Select and mark the position for fixing bolts.
• Drill the hole for set anchor on the face of ceiling.
• Insert the set anchor and washer onto the suspension bolts for locking the suspension bolts on the
ceiling.
•
Mount the suspension bolts to the set anchor firmly.
• Secure the installation plates onto the suspension
bolts (adjust level roughly) using nuts, washers
and spring washers.
Old building New building
1 Set anchor
2 Plate washer
3 Spring washer
4 Nut
CAUTION : Tighten the nut and bolt
to prevent unit falling.
5 Suspension
bolts
Wiring Connection
Connect the wires to the terminals on the control board individually according to the outdoor unit connection.
• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor unit respectively.
B1/B2 Series
Terminal Block Indoor Terminal Block Indoor
L(L1) N(L2) YL RD BK A B
Wired remote
INDOOR POWER INPUTINDOOR POWER INPUT
controller
Outdoor unit
SODU SODU
Indoor unit
IDU IDU
Central controller
DRY1
INTERNET
DRY2
GND
Outdoor unit
12V
WARNING : Make sure that the screws of the terminal are free from looseness.
Connection method of the connecting cable(Example)
L(L1) N(L2)
Conduit Hole
Power Supply
High Voltage
(208/230V)
WARNING : Loose wiring may cause the terminal to overheat or result in unit
malfunction.
A fire hazzard may also exist.
Therefore, be sure all wiring is tightly connected.
YL RD BK A B
controller
TransmissionWired remote
Installation Manual 9
Page 10
Installation
Round pressure terminal
Power wire(Ground wire)
CAUTION :
The connecting cable connected to the indoor and outdoor unit should be complied with the following specifications (This equipment shall be provided with a cord set complying with the
national regulation).
10±3mm
35±5mm
GN/YL
2
AWG18
0mm
If the supply cord is damaged, it must be replaced by a special cord or assembly available from
the manufacturer of its service agent.
u Precautions when laying power and ground wiring
Use round pressure terminals for connections to the power terminal block.
When laying ground wiring, you must use round pressure terminals.
When none are available, follow the instructions below.
• Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring
may cause abnormal heat.)
• When connecting wiring which is the same thickness, do as shown in the figure below.
• For wiring, use the designated power wire and connect firmly, then secure to prevent outside pressure
being exerted on the terminal block.
• Use an appropriate screwdriver for tightening the terinal screws. A screwdriver with a small head will
strip the head and make proper tighterning impossible.
• Over-tightening the terminal screws may break them.
10 Indoor Unit
Page 11
Air Filter
Air outlet
Panel Rear
Air outlet
Air Filter
Panel Rear
Part name and functions
Installation
ENGLISH
• Low static duct type in case of suction from back
side.
• Low static duct type in case of suction from bottom
side.
Installation Manual 11
Page 12
Installation
Moisture
Dust
Leakage
Plumbing materials and storage methods
Pipe must be able to obtain the specified thickness and should be used with low
impurities.
Also when handling storage, pipe must be careful to prevent a fracture, deformity
and wound.
Should not be mixed with contaminations such as dust, moisture.
Refrigerant piping on three principles
Drying Cleanliness Airtight
Items
Cause failure
Should be no moisture
inside
- Significant hydrolysis of refrigerant
oil
- Degradation of refrigerant oil
- Poor insulation of the compressor
- Do not cold and warm
- Clogging of EEV, Capillary
No dust inside.
- Degradation of refrigerant oil
- Poor insulation of the compressor
- Do not cold and warm
- Clogging of EEV, Capillary
There is no refrigerant
leakage
- Gas shortages
- Degradation of refrigerant oil
- Poor insulation of the compressor
- Do not cold and warm
- No moisture in the pipe
- Until the connection is completed,
the plumbing pipe entrance should
be strictly controlled.
Countermeas
12 Indoor Unit
- Stop plumbing at rainy day.
- Pipe entrance should be taken
ure
side or bottom.
- When removal burr after cutting
pipe, pipe entrance should be
taken down.
- Pipe entrance should be fitted cap
when pass through the walls.
- No dust in the pipe.
- Until the connection is completed,
the plumbing pipe entrance should
be strictly controlled.
- Pipe entrance should be taken
side or bottom.
- When removal burr after cutting
pipe, pipe entrance should be
taken down.
- Pipe entrance should be fitted cap
when pass through the walls.
- Airtightness test should be.
- Brazing operations to comply with
standards.
- Flare to comply with standards.
- Flange connections to comply with
standards.
Page 13
Installation
Nitrogen substitution method
Welding, as when heating without nitrogen substitution a large amount of the oxide film is formed on the internal piping.
The oxide film is a caused by clogging EEV, Capillary, oil hole of accumulator and suction hole of oil pump in compressor.
It prevents normal operation of the compressor.
In order to avoid this problem, Welding should be done after replacing air by nitrogen gas.
When welding plumbing pipe, the work is required.
◆How to work
Regulator
ENGLISH
Welding Point
Oxide scale
Note) should not block the outlet side.
When the internal pressure in pipe is above the
atmospheric pressure, pinhole is occurred and it
is a leakage cause.
Nitrogen gas
Pressure 0.02MPa less
Taping
(Should not
contain air)
Auxiliary valve
Nitrogen
CAUTION :
1. Always use the nitrogen.(not use oxygen, carbon dioxide, and a Chevron gas):
Please use the following nitrogen pressure 0.02MPa
Oxygen --------- Promotes oxidative degradation of refrigerant oil.
Because it is flammable, it is strictly prohibited to use
Carbon dioxide --- Degrade the drying characteristics of gas
Chevron Gas ---- Toxic gas occurs when exposed to direct flame.
2. Always use a pressure reducing valve.
3. Please do not use commercially available antioxidant.
The residual material seems to be the oxide scale is observed.
In fact, due to the organic acids generated by oxidation of the alcohol contained in the anti-oxidants, ants nest corrosion
occurs. (causes of organic acid → alcohol + copper + water + temperature)
Installation Manual 13
Page 14
Installation
Make sure that there is no clearance here.
Overlap with thermal
insulator for piping.
Thermal insulator for refrigerant pipe
(Local supply)
Thermal insulator for
piping(Local supply)
Hose clip for thermal insulator(Local supply)
Union for gas pipe
Refrigerant pipe and thermal
insulator(Local supply)
Union for liquid pipe
Thermal insulator for refrigerant pipe
(Local supply)
Hose clip for thermal insulator
(Local supply)
Felt
Rubber
Insulation
No clearance
Cabinet
INSULATION, OTHERS
THERMAL INSULATION
All thermal insulation must comply with local requirement.
Insulate the joint and tubes completely.
INDOOR UNIT
TEST AND CHECK
n After all workings are finished, check the working and operation.
• Air distribution ............... Is the air circulation good?
• Drain ............................. Is the drainage smoothly and no sweating?
• Gas leakage ................. Is the piping connection correctly?
• Wiring ........................... Is the wiring connection correctly?
• Lock-bolt ....................... Is the lock-bolt of compressor loosened?
• Insulation Is the unit fully insulated?
• Ground Is the unit safely grounded?
Checking the Drainage
1. Remove the Air Filter.
2. Check the drainage.
• Spray one or two glasses of water upon the
evaporator.
• Ensure that water flows drain hose of indoor
unit without any leakage.
14 Indoor Unit
Page 15
CAUTION
Upward
routing
not allowed
Pipe clamp
1/50~1/100
MAX 700mm
(27-9/16 inch)
Maintenance
drain port
Indoor unit
Feed water
Drain Pump
Drain pan
Flexible drain hose
Main
drain pipe
Glue the joint
Drain
port
Drain hose connection
Use the clip
1. Install declination of the indoor unit is very important for the drain of the duct type air conditioner.
2. Minimum thickness of the insulation for the connecting pipe shall be 19mm.
Front of view
• The unit must be horizontal or declined to the drain hose connected when finished
installation.
Ceiling
Drainage hole
Drain Pump use
Drain Piping
• Drain piping must have down-slope (1/50 to 1/100): be sure not to
provide up-and-down slope to prevent reversal flow.
• During drain piping connection, be careful not to exert extra force
on the drain port on the indoor unit.
• The outside diameter of the drain connection on the indoor unit is
32mm(1-1/4 inch).
Piping material: Polyvinyl chloride pipe inner diometes
Ø 25mm(1 inch) and pipe fittings
•
Be sure to install heat insulation on the drain piping.
Heat insulation material: Polyethylene foam with thickness more than 8mm(5/16 inch).
Installation
ENGLISH
Drain test
The air conditioner uses a drain pump to drain water.
Use the following procedure to test the drain pump operation:
• Connect the main drain pipe to the exterior
and leave it provisionally until the test
comes to an end.
• Feed water to the flexible drain hose and
check the piping for leakage.
• Be sure to check the drain pump for normal
operating and noise when electrical wiring
is complete.
• When the test is complete, connect the
flexible drain hose to the drain port on the
indoor unit.
Installation Manual 15
Page 16
Installation
1/50~1/100
MAX 700mm
(27-9/16 inch)
Flexible drain hoseFlexible drain hoseFlexible drain hose
CAUTION : The supplied flexible drain
hose should not be curved, neither
screwed. The curved or screwed hose
may cause a leakage of water.
CAUTION:
After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power specialized for the air conditioner. As for the method of
wiring, be guided by the circuit diagram posted on the inside of control box cover.
2) Provide a circuit breaker switch between power source and the unit.
3) The screws which fasten the wiring in the casing of electrical fittings are liable to come loose
from vibrations to which the unit is subjected during the course of transportation. Check them
and make sure that they are all tightly fastened. (If they are loose, it could give rise to burn-out
of the wires.)
4) Specification of power source
5) Confirm that electrical capacity is sufficient.
6) Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage
marked on the name plate.
7) Confirm that the cable thickness is as specified in the power sources specification.
(Particularly note the relation between cable length and thickness.)
8) Never fail to equip a leakage breaker where it is wet or moist.
9) The following troubles would be caused by voltage drop-down.
• Vibration of a magnetic switch, damage on the contact point, fuse breaking, disturbance by the normal function of an overload protection device.
• Proper starting power is not given to the compressor.
HAND OVER
Teach the customer the operation and maintenance procedures, using the operation manual.
(air filter cleaning, temperature control, etc.)
16 Indoor Unit
Page 17
Installation
WIERED REMOTE CONTROLLER INSTALLATION
• Since the room temperature sensor is in the remote controller, the remote controller box should be installed in a place
away from direct sunlight, high humidity and direct supply of cold air to maintain proper space temperature.
Install the remote controller about 5ft(1.5m) above the floor in an area with good air circulation at an average temperature.
ENGLISH
Do not install the remote controller where it can be affected by:
- Drafts, or dead spots behind doors and in corners.
- Hot or cold air from ducts.
- Radiant heat from sun or appliances.
- Concealed pipes and chimneys.
- Uncontrolled areas such as an outside wall behind the remote controller.
- This remote controller is equipped with a seven segment LED. display. For proper display of the remote controller
LED's, the remote controller should be installed properly as shown in Fig.1.
(The standard height is 1.2~1.5 m from floor level.)
yes
TEMP
Remote Controller
TEMP
no
Remote Controller
TEMP
r
e
oll
tr
n
o
te C
Remo
5feet
(1.5meters)
no
no
Fig.1 Typical locations for remote controller
Installation Manual 17
Page 18
Installation
Dip Switch Setting of Indoor unit PCB
Function Description Setting Off Setting On Default
Communication
SW1
Cycle
SW2
Group Control
SW3
Dry Contact Mode
SW4
Installation
SW5
Heater linkage
SW6
Ventilator linkage
SW7
Vane selection
(Console)
Region selection
Etc.
SW8
For Multi V Models, Dip switch 1, 2, 6, 8 must be set OFF.
N/A (Default)
N/A (Default)
Selection of Master or Slave
Selection of Dry Contact
Mode
Fan continuous operation
N/A
Selection of Ventilator linkage
Selection of up/down side
Vane
Selection tropical region
Spare
Selection of Manual or Auto
Continuous operation Removall
Up side + Down side Vane
-
-
Master
Wired/Wireless remote
controller
operation Mode
-
Linkage Removal
General model
-
-
-
Slave
Auto
-
-
Working
Up side Vane
Only
Tropical model
-
Off
Off
Off
Off
Off
Off
Off
Off
18 Indoor Unit
Page 19
Group Control Setting
1. Group Control 1
n Wired remote controller 1 + Indoor units
Installation
ENGLISH
LGAP Network System
Master
Master
Slave
Display Error Message
Slave
Only connect serial signal and GND lines
between slave indoor unit
Slave
GND
Signal
12 V
n Dip Switch in PCB (Cassette and Duct Type indoor units)
Master Setting Slave Setting
- No. 3 Off - No. 3 On
1. It is possible to 16 indoor units(Max) by one wired remote controller.
Set only one indoor unit to Master, set the others to Slave.
2. It is possible to connect with every type of indoor units.
3. It is possible to use wireless remote controller at the same time.
4. It is possible to connect with Dry Contact and Central controller at the same time.
- The Master indoor unit is possible to recognize Dry Contact and Central Controller only.
- In case of Central controller and Group controller at the same time, it is possible to connect standard 2series indoor units or later since Feb. 2009.
- In case of Central controller setting, the Central controller can control indoor units after setting only
the address of master indoor unit.
- Slave indoor unit will be operated like master indoor unit.
- Slave indoor unit can not be individually controlled by Central controller.
- Some remote controller can’t perform with Dry Contact and Central controller at the same time.
So contact us further information about it.
Installation Manual 19
Page 20
Installation
5. In case of any error occurs at indoor unit, display on the wired remote controller.
Exception of the error indoor unit, an individual indoor unit control possibility.
6. In case of Group Control, it is possible to use following functions.
- Selection of operation options (operation/stop/mode/set temperature)
- Control of flow rate (High/Middle/Low)
- It is not possible at some functions.
h Master/Slave setting of indoor units be set possible using a PCB Dip Switch.
h It is possible to connect indoor units since Feb. 2009. In the other cases, please contact LGE.
h It can be the cause of malfuctions when there is no setting of master and slave.
2. Group Control 2
LGAP Network System
Master
Master
Slave
Donʼt connect serial 12V line
Display Error Message
Slave
Slave
Slave
GND
Signal
12 V
h It is possible to control N indoor units by wired remote controller M units. (M + N ≤ 17 Units)
Set only one indoor unit to Master, set the others to Slave.
Set only one wired remote controller to Master, set the others to Slave.
Other than those, it is same with the Group Control 1.
20 Indoor Unit
Page 21
3. Group Control 3
n Mixture connection with indoor units and Fresh Air Intake Unit
LGAP Network System
Installation
ENGLISH
FAU
Master
Display Error Message
Master
FAU
Slave
Master
Master
Slave
GND
Signal
12 V
h In case of connecting with standard indoor unit and Fresh Intake Unit, separate Fresh Air
Intake Unit with standard units. (Because setting temperature are different.)
h Other than those, it is same with Group Control 1.
FAU
Standard Standard
FAU FAU
Standard Standard
FAU
* FAU : Fresh Air Intake Unit
Standard: Standard Indoor Unit
Installation Manual 21
Page 22
Installation
4. 2 Remote Control
n Wired remote controller 2 + Indoor unit 1
LGAP Network System
Master
Display Error Message
Master
1. It is possible to connect two wired remote controllers with one indoor unit.
2. Every types of indoor unit is possible to connect two remote controller.
3. It is possible to use wireless remote controller at the same time.
4. It is possible to connect with Dry Contact and Central controller at the same time.
5. In case of any error occurs at indoor unit, display on the wired remote controller.
6. There isnʼt limits of indoor unit function.
h Maximum 2wired remote controllers can be connected with 1 indoor unit.
Slave
22 Indoor Unit
Page 23
Installation
Slave
Mas te r
Mas ter
PZCWRCG3
Mas ter Sl ave
PZCWRC2
5. Accessories for group control setting
It is possible to set group control by using below accessories.
Indoor unit 2 EA +Wired remote controller Indoor unit 1 EA +Wired remote controller 2EA
h PZCWRCG3 cable used for connection h PZCWRC2 cable used for connection
• Apply totally enclosed noncombustible conduit in case of local building code Requiring plenum cable
usage.
ENGLISH
Installation Manual 23
Page 24
Installation
ARNU073B1G2, ARNU093B1G2, ARNU123B1G2, ARNU153B1G2
Setting Value
60 6.02(212) 2.25(79) 0.61(21) - 65 6.95(245) 3.32(117) 0.73(25) 0.54(19) 0.48(16)
70 7.69(271) 5.16(182) 1.19(42) 0.65(22) 0.56(19)
75 84.6(298) 6.93(244) 2.42(85) 0.77(27) 0.63(22)
80 9.5(335) 7.37(260) 3.4(120) 0.87(30) 0.72(25)
85 10.35(365) 8.72(307) 5.33(188) 1.35(47.6) 0.88(31)
90 10.81(381) 9.66(341) 6.75(238) 3.15(111) 0.98(34)
95 11.57(408) 10.31(364) 8.56(302) 4.73(167) 1.03(36)
100 12.58(444) 11.22(396) 9.75(344) 7.46(263) 2.31(81)
105 13.31(470) 12.27(433) 10.89(384) 8.64(305) 5.01(176)
110 14.2(501) 13.24(467) 12.15(429) 10.49(370) 7.7(271)
115 14.82(523) 13.92(491) 12.64(446) 11.16(394) 9.48(334)
0(0) 1(3.93) 2(7.87) 3(0.11) 4(0.15)
Static Pressure(mmAq (in.Aq))
ARNU183B2G2, ARNU243B2G2
Setting Value
65 10.07(355) 6.9(243) 0.82(28) - -
70 11.39(402) 8.49(299) 2.2(77) - -
75 12.01(424) 9.79(345) 4.2(148) - -
80 13.21(466) 11.03(389) 5.92(209) 0.92(32) -
85 14.24(502) 12.36(436) 9.41(332) 2.1(74) -
90 15.04(531) 13.34(471) 10.8(381) 5.29(186) 1.01(35)
95 16.02(565) 14.63(516) 12.5(441) 7.59(268) 1.34(47)
100 17.11(604) 15.56(549) 13.66(482) 11.53(407) 5.35(188)
105 17.99(635) 16.53(583) 15.17(535) 12.35(436) 7.67(270)
110 19.04(672) 17.71(625) 16.22(572) 14.23(502) 10.45(369)
115 19.77(698) 18.62(657) 17.1(603) 15.23(537) 13.25(467)
120 20.94(739) 19.92(703) 18.56(655) 16.98(599) 14.66(517)
125 21.97(775) 20.56(726) 19.25(679) 17.68(624) 16.06(567)
130 22.83(806) 21.98(776) 20.75(732) 19.32(682) 17.73(626)
0(0) 1(3.93) 2(7.87) 3(0.11) 4(0.15)
Static Pressure(mmAq (in.Aq))
(Unit;cmm(cfm))
(Unit;cmm(cfm))
Note :
1. The above table shows the correlation between the air rates and E.S.P.
24 Indoor Unit
Page 25
US
CANADA
Please call the installing contractor of your product, as warranty service will be
provided by them.
Service call Number # : (888) LG Canada, (888) 542-2623
Numéro pour les appels de service : LG Canada, 1-888-542-2623
Loading...