LG MFL50024826 User manual

ENGLISH

P/NO : MFL50024826

INSTALLATION MANUAL

Applied(AHU)

EEV kit

AIR

CONDITIONER

www.lg.com

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.

• 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 condi-

tioner 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 :

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:

TIPS FOR SAVING ENERGY

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak

performance of your product

WARNING

It can result in serious injury or death when the directions are ignored

CAUTION

It can result in minor injury or product damage when the directions are ignored

WARNING

• Installation or repairs made by unqualified persons can result in hazards to you and others.

• Installation MUST conform with local building codes or, in the absence of local codes, with

the Nation Electrical Code NFPA 70/ANSI C1-1003 or current edition and Canadian Electrical

Code Part1 CSA C.22.1.

• 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 mal-

function, property damage, personal injury and/or death.

Installation

• Don’t use a power cord, a plug or a loose socket which is damaged.

- Otherwise, it may cause a fire or electrical 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 win-

dow 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 con-

denser and evaporator.

• For installation, always contact the dealer or an Authorized Service Center.

- There is risk of fire, electric shock, explosion, or injury.

SAFETY PRECAUTIONS

ENGLISH

• 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.

• There is a risk of fire and explosion.

- Inert gas (nitrogen) should be used when you check plumbing leaks, cleaning or repairs of pipes

etc.

If you are using combustible gases including oxygen, product may have the risk of fires and explo-

sions.

Operation

• Do not store or use flammable gas or combustibles near the product.

- There is risk of fire or failure of product.

CAUTION

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 neigh-

borhoods.

- It may cause a problem for your neighbors.

• 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.

• Thickness of copper pipes used are as shown “Flaring work” Table.

- Never use copper pipes thinner than that in the table even when it is available on the market

• Do not use copper pipes having a collapsed.

- Otherwise, the expansion valve or capillary tube may become blocked with contaminants.

• For R410A model, use piping, flare nut and tools which is specified for R410A refrigerant.

- Using of (R22) piping, flare nut and tools may cause abnormally high pressure in the refrigerant

cycle (piping), and possibly result in explosion and injury.

• It is desirable that the amount of residual oil less than 40 mg/10m.

SAFETY PRECAUTIONS

ENGLISH

3IMPORTANT SAFETY

INSTRUCTIONS

6INSTALLATION SCENE

7SUPPLIES

8PART DESCRIPTION

8EEV Kit(PRLK048A0 / PRLK096A0)

9EEV KIT INSTALLATION

9Mechanical Installation

12 Electrical Work

13 THERMISTORS INSTAL-

LATION

13 Pipe thermistors Installation

16 TROUBLESHOOTING

TABLE OF CONTENTS

ENGLISH

6INSTALLATION SCENE

ENGLISH

INSTALLATION SCENE

Signal

Pipe

Thermistor

Air ﬂow

Refrigerant ﬂow

(Cooling)

Refrigerant ﬂow

(Heating)

Parts and components

No. Name Remarks

1 Air Handling Unit Field supply

2 Outdoor Unit Multi V

3 AHU Comm. Kit(PRCKA0/PRDCA0) -

4 AHU EEV Kit(PRLK048A0 / PRLK096A0) -

5 Field piping Field supply

Wiring connections

6 Comm kit wiring (Power supply and communication be-

tween control kit and outdoor unit)

7Pipe thermistors (EBG61287703 /

EBG61287704)

Evaporator (In/Out) control of Air Han-

dling Unit

8 Room thermistor (EBG36949303) Return air control

9 Remote controller(PQRCUSA0) Optional accessory

10 Dry contact PCB(PQDSBNGCM0) Optional accessory

SUPPLIES 7

SUPPLIES

ENGLISH

PRLK048A0 / PRLK096A0

Components AHU EEV Kit Installation manual

P/NO AJT57850801 : PRLK048A0

AJT57850802 : PRLK096A0 MFL50024803

Shape

Quantity(EA) 1 1

Model Name

Weight(kg) Dimension(mm)

POWER

NET Gross W D H

PRLK048A0 3.1 3.6 217 83 404 DC 12V

PRLK096A0 3.3 3.8 217 83 404 DC 12V

PART DESCRIPTION

ENGLISH

EEV Kit(PRLK048A0 / PRLK096A0)

PART DESCRIPTION

No. Part Name Quantity(EA)

1 Panel upper 1

2 Bracket 3

3 Terminal box 1

4 Cable gland 2

5 Insulator tube 1

6 EEV assembly (EEV, Strainer, Tube) 1

7 Support tie wrap 2

8 Panel base 1

EEV KIT INSTALLATION 9

ENGLISH

Mechanical Installation

EEV KIT INSTALLATION

1Remove the EEV Kit box cover by unscrewing the screw(4EA).

2Drill 4 holes on correct position and fix the EEV Kit box securely with 2 screws(M5, Field sup-

ply) at the ‘A’ position and then fix the EEV Kit box with other screws(M5×2EA) at the ‘B’

position.

190 mm

Provided holes

Ø6 (M5x2EA)

Pipe size

Ø12.7 mm(1/2")

6mm

Ø12 Hole

206 mm

222 mm

10 EEV KIT INSTALLATION

ENGLISH

Mechanical Installation

3Prepare the inlet/outlet field piping just in front of the connection.

4Braze the field piping.

5Make sure that field pipes are fully insulated. Field pipe insulation must reach up to the pipe

insulation(D). Make sure that there is no gap between both ends in order to avoid condensa-

tion dripping(Finish the connection with tape eventually)

C(3EA)

A. Inlet coming from the outdoor unit

B. Outlet to evaporator

C. Pipe fixing bracket(3EA)

D. Pipe insulation

E. EEV Assembly

F. Field pipe(Inlet / Outlet)

※When brazing, wrap wet cloth

round this part.

CAUTION

• Make sure to cool the filters and EEV body with a wet cloth and make sure the body tem-

perature does not exceed 120°C during brazing.

• Make sure that the other parts such as electrical box, tie wraps and wires protected from

direct brazing flames during brazing.

Table of contents

Other LG Air Conditioner manuals

Popular Air Conditioner manuals by other brands

Spheros

Spheros CC 355 instructions

Bosch

Bosch Climate 5000 SCI 24 CAS/ OU- OUE owner's manual

Panasonic

Panasonic CS-E12HKEW operating instructions

nedis

nedis ACMB1WT7 quick start guide

Samsung

Samsung AR KV Series User & installation manual

Daikin

Daikin FCFV50A Operation manual

Fujitsu

Fujitsu Inverter ASBA30JFC operating manual

Toshiba

Toshiba RAS-M10SMUV-E installation manual

Daikin

Daikin FXLQ20MAVE Operation manual

Hitachi

Hitachi RAS-E24CAK instruction manual

CIAT

CIAT Magister 2 Series Installation, Operation, Commissioning, Maintenance

Bestron

Bestron AAC6000 instruction manual

Hisense

Hisense 7K Use and Installation Instructions

Frigidaire

Frigidaire FFRE0533S1E0 Use & care guide

Samsung

Samsung AS09HM3N user manual

Frigidaire

Frigidaire CRA073PU11 use & care

Soleus Air

Soleus Air GB-PAC-08E4 operating instructions

McQuay

McQuay MCK020A Technical manual