INSTALLATION MANUAL
AIR CONDITIONER

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.
Ceilling Concealed Duct

TIPS FOR SAVING ENERGY

Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below:

• Do not cool excessively indoors. This may be harmful for your health and may consume more electricity.
• Block sunlight with blinds or curtains while you are operating the air conditioner.
• Keep doors or windows closed tightly while you are operating the air conditioner.
• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
• Speed up the fan to cool or warm indoor air quickly, in a short period of time.
• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air conditioner is used for many hours.
• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or weaken the cooling / dehumidifying functions.

For your records
Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can find them on a label on the side of each unit.
Dealer’s name :
Date of purchase :

SAFETY INSTRUCTIONS

The following safety guidelines are intended to prevent unforeseen risks or damage from unsafe or incorrect operation of the appliance.
The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described below.

This symbol is displayed to indicate matters and operations that can cause risk.
Read the part with this symbol carefully and follow the instructions in order to avoid risk.
WARNING
This indicates that the failure to follow the instructions can cause serious injury or death.
CAUTION
This indicates that the failure to follow the instructions can cause the minor injury or damage to the product.

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.

Installation

• Always perform grounding. – Otherwise, it may cause electrical shock.

• For installation of the product, always contact the service center or a professional installation agency. Otherwise, it may cause a fire, electrical shock, explosion or injury.

• Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit.
  – If the electrical part cover of the indoor unit and the service panel of the outdoor unit are not attached securely, it could result in a fire or electric shock due to dust, water, etc.

•  Always install an air leakage breaker and a dedicated switching board. – No installation may cause a fire and electrical shock.

• Do not keep or use flammable gases or combustibles near the air conditioner. – Otherwise, it may cause a fire or the failure of product.
  • Ensure that an installation frame of the outdoor unit is not damaged due to use for a long time.
  – It may cause injury or an accident.

• Do not disassemble or repair the product randomly. – It will cause a fire or electrical shock.

• Do not install the product at a place that there is concern of falling down. – Otherwise, it may result in personal injury.

• Use caution when unpacking and installing. – Sharp edges may cause 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.

• Consult your lacal dealer regarding what to do in case of refrigerant leakage.
  When the air conditioner is to be installed in a small room, it is necessary to take proper measures so that the amount of any leaked refrigerant does not exceed the concentration limit in the event of a leakage. Otherwise, this may lead to an accident due to oxygen depletion.

• Carry out the specified installation work after taking into account earthquakes.
  Failure to do so during installation work may result in the unit falling and causing accidents.

• Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws and regulations and this installation manual.
  An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire.

• Be sure to switch off the unit before touching any electrical parts.

• Make sure that all wiring is secured, the specified wires are used, and that there is no strain on the terminal connections or wires.

• If refrigerant gas leaks during installation, ventilate the area immediately.
  Toxic gas may be produced if the refrigerant gas comes into contact with fire.

• Make sure to be materials in a compartment handling air for circulation through a duct supplying only one room.

Operation

• Unplug the unit if strange sounds, smell, or smoke comes from it. – Otherwise, it may cause electrical shock or a fire.
• Keep the flames away. – Otherwise, it may cause a fire.
• Take the power plug out if necessary, holding the head of the plug and do not touch it with wet hands. – Otherwise, it may cause a fire or electrical shock.
• Do not open the suction inlet of the indoor/outdoor unit during operation. – Otherwise, it may electrical shock and failure.
• Do not allow water to run into electrical parts. – Otherwise, it may cause the failure of machine or electrical shock.
• Never touch the metal parts of the unit when removing the filter. – They are sharp and may cause injury.
• Do not step on the indoor/outdoor unit and do not put anything on it. – It may cause an injury through dropping of the unit or falling down.
• When the product is submerged into water, always contact the service center. – Otherwise, it may cause a fire or electrical shock.
• Take care so that children may not step on the outdoor unit. – Otherwise, children may be seriously injured due to falling down.

CAUTION
Installation

• Install the drain hose to ensure that drain can be securely done. – Otherwise, it may cause water leakage.
• Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to the neighbors. – Otherwise, it may cause dispute with the neighbors.
• Always inspect gas leakage after the installation and repair of product. – Otherwise, it may cause the failure of product.
• Keep level parallel in installing the product. – Otherwise, it may cause vibration or water leakage.
• Do not install the unit in potentially explosive atmospheres.

Operation

• Avoid excessive cooling and perform ventilation sometimes. – Otherwise, it may do harm to your health.
• Use a soft cloth to clean. Do not use wax, thinner, or a strong detergent. – The appearance of the air conditioner may deteriorate, change color, or develop surface flaws.
• Do not use an appliance for special purposes such as preserving animals vegetables, precision machine, or art articles. – Otherwise, it may damage your properties.
• Do not place obstacles around the flow inlet or outlet. – Otherwise, it may cause the failure of appliance or an accident.

INSTALLATION PARTS

Name| Drain hose| Vinyl| Clamp metal| Washer for hanging bracket| Clamp (Tie Wrap)| Insulation for fitting
---|---|---|---|---|---|---
Quantity| 1 EA| 1 EA| 2 EA| 8 EA| 4 EA| 1 set
**** Shape|

|

|

|

|

|

• Screws for fixing panels are attached to decoration panel.

INSTALLATION

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.

WARNING
Make sure to be materials in a compartment handling air for circulation through a duct supplying only one room.

Top view [Unit: mm(inch)]

• Suitable dimension “H” is necessary to get a slope to drain as shown in the figure

Ceiling dimension and hanging bolt location
Installation of Unit
Install the unit above the ceiling correctly.

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)]

(50-17/32)
B| 772 (30-2/5)| 972 (38-13/50)| 971.6 (38-1/4)| 1 321.6 (52-1/32)| 1 321.6 (52-1/32)
C| 628 (24-18/25)| 628 (24-18/25)| 619.2 (24-3/8)| 619.2 (24-3/8)| 619.2 (24-3/8)
D| 700 (27-11/20)| 700 (27-11/20)| 700 (27-9/16)| 700 (27-9/16)| 700 (27-9/16)
E| 36 (1-2/5)| 36 (1-2/5)| 30 (1-3/16)| 30 (1-3/16)| 30 (1-3/16)
F| 190 (7-12/25)| 190 (7-12/25)| 270 (10-5/8)| 270 (10-5/8)| 360 (14-3/16)
G| 20 (25/32)| 20 (25/32)| 15.2 (19/32)| 15.2 (19/32)| 15.2 (19/32)
H| 660 (25-49/50)| 860 (33-17/20)| 858 (33-25/32)| 1 208 (47-9/16)| 1 208 (47-9/16)
I| 155 (6-1/10)| 155 (6-1/10)| 201.4 (7-15/16)| 201.4 (7-15/16)| 291.4 (11-15/32)
J| 700 (27-11/20)| 900 (35-11/25)| 900 (35-7/16)| 1 250 (49-7/32)| 1 250 (49-7/32)

• 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.

• 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.

• Local supply

① Set anchor|
---|---
② Plate washer| – M10
③ Spring washer| – M10
④ Nut| – W3/8 or M10
⑤ Suspension bolt| – W3/8 or M10

CAUTION

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 5 mm(3/16 inch).

Front of view

•  The unit must be declined to the drain hose connected when finished installation.

CAUTION FOR GRADIENT OF UNIT AND DRAIN PIPING
Lay the drain hose with a downward inclination so water will drain out.

• Always lay the drain with downward inclination (1/100 to 1/50).
  Prevent any upward flow or reverse flow in any part.

• 10 mm or thicker formed thermal insulator shall always be provided for the drain pipe.

• Upward routing not allowed

• Install the P-Trap (or U-Trap) to prevent a water leakage caused by the blocking of intake air filter.

Applied U-Trap Dimension

A ≥ 70 mm(2-3/4 inch)
B ≥ 2C
C ≥ 2 x SP
SP = External Pressure (mmAq(inAq))
Ex) External Pressure
= 10 mmAq (0.39 inAq)
A ≥ 70 mm(2-3/4 inch)
B ≥ 40 mm(1-9/16 inch)
C ≥ 20 mm(25/32 inch)

Air Filter

Low static duct type in case of suction from back side.

Low static duct type in case of suction from bottom side.

In case of suction from bottom size, bend the Panel rear and screw with cabinet case.
INSULATION, OTHERS
Insulate the joint and tubes completely.
THERMAL INSULATION
All thermal insulation must comply with local requirement.
INDOOR UNIT

TEST AND CHECK

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.

CAUTION

• Install declination of the indoor unit is very important for the drain of the duct type air conditioner.
• Minimum thickness of the insulation for the connecting pipe shall be 19 mm(3/4 inch).

Front of view
The unit must be horizontal or declined to the drain hose connected when finished installation.

Indoor Unit 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 32 mm(1-1/4 inch).
  Piping material: Polyvinyl chloride pipe VP-25 and pipe fittings

• Be sure to execute heat insulation on the drain piping.
  Heat insulation material: Polyethylene foam with thickness more than 8 mm(5/16 inch).

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.

CAUTION
The supplied flexible drain hose should not be curved, neither screwed. The curved or screwed hose may cause a leakage of water.

HAND OVER
Teach the customer the operation and maintenance procedures, using the operation manual. (air filter cleaning, temperature control, etc.)
Combination indoor units (AMNWG*A)
** The indoor units connectable to the outdoor unit are shown below

(kBtu/h
class)| 36| 54
Vertical AHU| 24| 0| 0
36| X| 0
Ceiling Concealed Duct (High Static)| 24| 0| 0
36| X| 0

NOTE

1. The total capacity(in Btu/h unit) of connected indoor unit models represents the total sum of the figures expressed in the indoor model name.
2. Combinations in which the total capacity of the connected indoor units exceeds the capacity of the outdoor unit will reduce the capacity of each indoor unit below the rated capacity during simultaneous operation. Therefore, if circumstances allows, combine indoor units within the capacity of the outdoor unit.
3. VAHU, Ceiling Concealed Duct(High  Static) type indoor unit’s combinationcalculation method as below. Calculation method for total capacity of connectable indoor unit to an outdoor unit = (Sum of all VAHU & Ceiling Concealed Duct(High Static) type indoor units capacity x 1.3) + Sum of all other indoor unit’s capacity

Outdoor Unit (kBtu/h class)| Total capacity of connectable indoor units (kBtu/h)
---|---
36| 48
54| 73

Example)
Total rated capacity index :

4Way CST
AMNW18GTQA0
[LMCN185HV]| 18

• ---|---
  VAHU
  AMNW36GNJA0
  [LMVN360HV]| 36 x 1.3

  64.8 < 73

Flaring work

Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure.

1. Cut the pipes
   – Use the accessory piping kit or the pipes purchased locally.
   – Measure the distance between the indoor and the outdoor unit.
   – Cut the pipes a little longer than measured distance.
   – Cut the cable 1.5 m(4.9 ft) longer than the pipe length.
   

2.  Burrs removal
   – Completely remove all burrs from the cut cross section of pipe/tube.
   – Put the end of the copper tube/pipe to downward direction as you remove burrs in order to avoid to let burrs drop in the tubing.

3. Putting nut on
   – Remove flare nuts attached to indoor and outdoor units, than put them on pipe/tube having completed burr removal.
   (Not possible to put them on after flaring work)

4. Flaring work
   – Carry out flaring work using flaring tool as shown below.Pipe diameter Inch (mm)| A Inch (mm)| Thickness Inch (mm)
   ---|---|---
   Wing nut type| Clutch type
   Ø 1/4 (Ø 6.35)| 0.04~0.05 (1.1~1.3)|

0~0.02 (0~0.5)

| 0.03 (0.7)
Ø 3/8 (Ø 9.52)| 0.06~0.07 (1.5~1.7)| 0.03 (0.8)
Ø 1/2 (Ø 12.7)| 0.06~0.07 (1.6~1.8)| 0.03 (0.8)
Ø 5/8 (Ø 15.88)| 0.06~0.07 (1.6~1.8)| 0.04 (1.0)
Ø 3/4 (Ø 19.05)| 0.07~0.08 (1.9~2.1)| 0.04 (1.0)

Firmly hold copper tube in a bar(or die) as indicated dimension in the table above.

5. Check
   – Compare the flared work with figure.
   – If flare is noted to be defective, cut off the flared section and do flaring work again.
   

Connection of piping – Indoor, Outdoor, BD Unit

Align the center of the piping and sufficiently tighten the flare nut by hand.

ODU

|

Model

| Refrigerant Connections Pipe size
---|---|---
Liquid| Gas
Single| AMNW18GL2A1| 3/8| 5/8
Zone| (Ø 9.52)| (Ø 15.88)

• AMNW18GL2A1 includes the sockets. Ø 6.35 → Ø 9.52 x 1 EA, Ø 12.7 → Ø 15.88 x 1 EA, Ø 9.52 → Ø 12.7 x 1 EA

BD Unit

| Refrigerant Connections Pipe Size (inch (mm))| Connectable Indoor Unit Capacity (kBtu/h class)
---|---|---
Liquid| Gas
PMBD3620| 1/4 (Ø 6.35) x 2 EA| 3/8 (Ø 9.52) x 2 EA| 9/12/18/24 k
PMBD3630| 1/4 (Ø 6.35) x 3 EA| 3/8 (Ø 9.52) x 3 EA| 9/12/18/24 k
PMBD3640| 1/4 (Ø 6.35) x 4 EA| 3/8 (Ø 9.52) x 4 EA| 9/12/18/24 k

PMBD3641

|

1/4 (Ø 6.35) x 4 EA

| 3/8 (Ø 9.52) x 3 EA| 9/12/18/24 k (A/B/C ROOM)
1/2 (Ø 12.7) x 1 EA| 36 k (D ROOM)

• BD Unit(PMBD3641) includes the sockets.
  (Ø 12.7 → Ø 15.88 x 1 EA,
  Ø 6.35 → Ø 9.52 x 1 EA)

Finally, tighten the flare nut with torque wrench until the wrench clicks.

• When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench.

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
---|---|---|---
Should be no moisture inside| No dust inside.| There is no refrigerant leakage
**** Items|

|

|

Cause failure| –  Significant hydrolysis of refrigerant oil
–  Degradation of refrigerant oil
–  Poor insulation of the compressor
–  Do not cold and warm
–  Clogging of EEV, Capillary|

–  Degradation of refrigerant oil
–  Poor insulation of the compressor
–  Do not cold and warm
–  Clogging of EEV, Capillary

| –  Gas shortages
–  Degradation of refrigerant oil
–  Poor insulation of the compressor
–  Do not cold and warm
Countermeasure| –  No moisture in the pipe
–  Until the connection is completed, the plumbing pipe entrance should be strictly controlled.
–  Stop plumbing at rainy day.
–  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.|

–  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.

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

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.

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)

Heat insulation

1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120 °C).
2.  Precautions in high humidity circumstance:
   This air conditioner has been tested according to the “KS Standard Conditions with Mist” and confirmed that there is not any default. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 23 °C), water drops are liable to fall. In this case, add heat insulation material according to the following procedure:
   – Heat insulation material to be prepared…Adiabatic glass wool with thickness 10 to 20 mm.
   – Stick glass wool on all air conditioners that are located in ceiling atmosphere.

Wiring Connection

• Remove the control box cover for electrical connection between the indoor and outdoor unit. (Remove screws 1.)
• Open the control box cover and connect the Remote controller cord and Indoor power wires.
• Use the cord clamper to fix the cord.

Connection method of the connecting cable(Example)

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.

< AMNWGMA >
< ABNWGMH >

• Open the control box cover and connect the remote controller cables, transmission cables and indoor power cables.
• Control box cover is consist of one panel.

Control box cover can be separated from main body

Separate whole cover(when access from bottom of the product).
Remove screws on the bottom panel and grab the both panel with two hands and pull down the whole cover.

After remove the control box cover, insert cables onto the bush and conduit and then connect at terminal block.

Insulation, others
Insulate the joint and tubes completely.
THERMAL INSULATION
All thermal insulation must comply with local requirement.
INDOOR UNIT

CAUTION
The power connecting cable between the outdoor and indoor units must comply with the following specifications: NRTL Recognized (for example, UL or ETL recognized and CSA certified).
AWG 18-4 is the minimum recommended wire size, however, the selected conductors must comply with local codes and be suitable for installation in wet locations.

If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer of its service agent. When the connection line between the indoor unit and outdoor unit and outdoor unit is over 40 m, connect the  telecommunication line and power line separately.

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 terminal screws. A screwdriver with a small head will strip the head and make proper tightening impossible.

• Over-tightening the terminal screws may break them.

NOTE
Use connection cable NRTL(UL, ETL, CAS…) listed and stranded copper(4) THHN conductors, sunlight (UV) resistant ROHS compliant PVC jacket 600 V direct burial listed, approved for wet conditions. Temperature rated for –20 °C(-4 °F) to 90 °C(194 °F). And this cable should be enclosed in conduit.
WARNING

• Be sure to comply with local and national codes while running the wire from the indoor unit to the outdoor unit(size of wire and wiring method, etc).
• Every wire must be connected firmly.
• No wire should be allowed to touch refrigerant tubing, the compressor or any moving parts.
• The communication wirings of air conditioner should be separate and isolated from external device’s electric wiring such as computers, elevator, radio & Television broadcasting facilities, as well as medical imaging offices.

REMOTE CONTROLLER INSTALLATION

※Remote controller is provided as an accessory.
Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup.
– Please set it up not to bend because poor setup could take place if setup board bends.
Please set up remote controller board fit to the reclamation box if there is a reclamation box.

Can set up Wired remote controller cable into three directions.
– Setup direction: the surface of wall reclamation, upper, right
– If setting up remote controller cable into upper and right side, please set up after removing remote controller cable guide groove.

• Remove guide groove with long nose.

  1. Reclamation to the surface of the wall
  2. Upper part guide groove
  3. Right part guide groove

Please connect indoor unit and remote controller using connection cable.

Please use extension cable if the distance between wired remote controller and indoor unit is more than 10 m(32-4/5 ft).
Please fix remote controller upper part into the setup board attached to the surface of the wall, as the picture below, and then, connect with setup board by pressing lower part.

• Please connect not to make a gap at the remote controller and setup board’s upper and lower, right and left part.

When separating remote controller from setup board, as the picture below, after inserting into the lower separating hole using screw driver and then, spinning clockwise, remote controller is separated.

• There are two separating holes. Please individually separate one at a time.
• Please be careful not to damage the inside components when separating.

CAUTION

When installing the wired remote controller, do not bury it in the wall. (It can cause damage in the temperature sensor.) Do not install the cable to be 50 m or above. (It can cause communication error.)

• When installing the extension cable, check the connecting direction of the connector of the remote controller side and the product side for correct installation.
• If you install the extension cable in the opposite direction, the connector will not be connected.
• Specification of extension cable: 2547 1007 22# 2 core 3 shield 5 or above.
• Apply totally enclosed noncombustible conduit in case of local building code Requiring plenum cable usage.

Wired 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 5 ft(1.5 m) above the floor in an area with good air circulation at an average temperature.

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 LCD. display. For proper display of the remote controller

LCD’s, the remote controller should be installed properly as shown in Fig.1.
(The standard height is 4~5 ft (1.2~1.5 m) from floor level.)

HOW TO SET E.S.P?

Installer Setting – E.S.P.

This is the function that decides the strength of the wind for each wind level and because this function is to make the installation easier.

• If you set ESP incorrectly, the air conditioner may malfunction.
• This setting must be carried out by a certificated-technician.

※ The procedure of setting E.S.P. is refer to the manual of remote controller.

• Precaution shall be taken not to alter the E.S.P value corresponded to each air flow section.
• E.S.P value can be varied according to the products.
• In the case of going to the next air flow rate stage by pressing the fan-speed button during the setup of the E.S.P value, the E.S.P value of previous air flow rate will be maintained by remembering the E.S.P value prior to the shift.

(Unit : CMM)

Capacity

|

Step

|

CFM

| Static Pressure(mmAq(in.Aq))
---|---|---|---
0(0)| 1(0.04)| 2(0.08)| 3(0.12)| 4(0.16)| 5(0.2)
Setting Value

9 k

| HIGH| 318| 98| 103| 108| 116| 125| 130
MID| 247| 82| 88| 94| 102| 110| 118
LOW| 194| 69| 76| 83| 91| 99| 109

12 k

| HIGH| 353| 95| 99| 104| 109| 116| 125
MID| 300| 86| 91| 96| 101| 108| 116
LOW| 247| 78| 82| 87| 93| 100| 108

18 k

| HIGH| 530| 123| 125| 129| 134| 140| 145
MID| 441| 109| 112| 117| 123| 129| 136
LOW| 353| 95| 99| 104| 109| 116| 124

Capacity

|

Step

|

CFM

| Static Pressure(mmAq(in.Aq))
---|---|---|---
2.5(0.1)| 4(0.16)| 5(0.2)| 6(0.24)| 7(0.28)| 8(0.31)| 9(0.35)| 10(0.39)| 11(0.43)| 12(0.47)| 13(0.51)| 15(0.59)
Setting Value

24 k

| HIGH| 777| 110| 117| 121| 124| 127| 130| 133| 136| 137| –| 138| 140
MID| 706| 102| 110| 114| 118| 120| 125| 127| 130| 133| –| 134| 136
LOW| 636| 96| 102| 107| 110| 114| 118| 122| 125| 127| –| 130| 132

36 k

| HIGH| 1 130| –| 109| 112| 115| 119| 122| 126| 128| 131| 134| 137| 144
MID| 989| –| 101| 105| 108| 112| 115| 119| 123| 127| 130| 133| 138
LOW| 848| –| 92| 97| 101| 105| 109| 113| 117| 121| 124| 127| 134

42 k

| HIGH| 1 413| –| 83| 89| 92| 94| 98| 100| 102| 105| 108| 110| 116
MID| 1 200| –| 78| 82| 84| 89| 94| 96| 98| 101| 104| 106| 112
LOW| 989| –| 74| 76| 79| 82| 89| 92| 94| 96| 99| 102| 107

48 k

| HIGH| 1 766| –| 94| 97| 100| 104| 107| 109| 112| 115| 117| 119| 121
MID| 1 589| –| 90| 92| 96| 98| 102| 104| 106| 109| 112| 114| 117
LOW| 1 413| –| 82| 89| 92| 94| 98| 100| 102| 105| 108| 110| 113

Installer Setting – Auto ESP
This function automatically sets the rotation speed of the fans corresponding to each step of rated airflow for easy installation.
Please refer to the manual for separately sold remote control for detailed setup.
NOTE
If this function is incorrectly set especially, in case of mismatching the voltage, the air conditioner may malfunction.
this function must be set by the installation specialist that holds an installation license. (please check the product type)
This function is only available on some products.

NOTE

• If the heat exchanger is not dry, please set the device to operate in air circulation mode for 15 minutes.
•  The air filter must be properly attached to the suction side of the product.
•  Adjust the dampers so that each air inlet and outlet exhaust the required air.
• Please do not use the set auto air flow function when using various booster fans (outdoor air treatment device or ERV through ducts).
•  Please reinitiate the set auto air flow function if the duct shape has changed since its initial installation.
• When setting the voltage manually, the set air flow will differ from the actual air flow if the set voltage is different from the actual voltage.
• When setting voltage manually, measure the actual voltage and select the set voltage on the remote control.
• Failure to follow the above method may cause the actual air flow to differ from the rated air flow.

SELF-DIAGNOSIS FUNCTION

Indoor Unit Error
Ex) Error 03 (Remote controller error)

• Because remote controller turn off when occur ERROR in simultaneous operation system, it should check LED blinks of outdoor in order to confirm error code.
• Repeatedly after LED1 is turned on and off as the Error code number of tens digit, LED2 is turned on and off as the Error code number of single-digit.

DIP SWITCH SETTING

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 Removal| Working| Off

US| Please call the installing contractor of your product, as warranty service will be provided by them.
---|---
CANADA| Service call Number # : (888) LG Canada, 888-542-2623 Numéro pour les appels de service : LG Canada, 1-888-542-2623

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