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INSTALLATION

13

ENGLISH

INSTALLATION

Indoor unit installation

1

The mounting floor should be strong and
solid enough to prevent it from vibration.

2

Drill the piping hole with 70 mm diameter
hole-core drill at either the right or the left
of indoor unit. The hole should be sightly
slant to the outdoor side.

3

Insert the plastic tube through the hole.

4  

Cut the extruded outside part of the plastic
tube, if necessary.

-  When using knock-out hole to route

the piping, insert the plastic cover in
knock-out hole in order to prevent the
piping from damaged by sharp edge of
the hole.  

* The feature may be changed according

to the type of model.

200 mm

70 mm

70 mm

90 mm

Wall

Core Drill

INSIDE

OUTSIDE

Tilt 

Cut if 

necessary

More 

than 15 mm

Wall

Plastic tube

(Bushing)

INSIDE

OUTSIDE

Knock-out hole

Knock-out hole

• Install the product to remain horizontal

using the horizontal gauge. 

• Do not damage cables when you install

the indoor unit. There is risk of fire or
electric shock.

<PT3>

<PF2>

CAUTION

!

Summary of Contents for ARNU96GPFA4

Page 1: ...oduct 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 www lg com Copyright 2018 LG Electronics Inc All Rights Reserved MFL67142711 Rev 00_101118 ENGLISH ESPAÑOL PORTUGUÊS ...

Page 2: ...time 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 ...

Page 3: ...herwise it may cause electric shock Don t use an electric cable or a terminal block which is damaged Otherwise it may cause a fire or electric shock For installation of the product always contact the service center or a professional installation agency Otherwise it may cause a fire electric shock explosion or injury Securely attach the electrical part cover to the indoor unit and the service panel...

Page 4: ...herwise it may cause a fire or electric shock Turn off the breaker or power if strange sounds smell or smoke comes from it Otherwise it may cause electric shock or a fire Keep the flames away Otherwise it may cause a fire Do not use the electric cable near the heating tools Otherwise it may cause a fire and electric shock Do not open the suction inlet of the indoor outdoor unit during operation Ot...

Page 5: ...oduct Keep level parallel in installing the product Otherwise it may cause vibration or water leakage Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules 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 ...

Page 6: ...Location 8 WIRING CONNECTION 8 Connecting the cable 9 Wiring Connection 11 CONNECTING PIPES 11 Preparation of Pipe 13 INSTALLATION 13 Indoor unit installation 14 Indoor Unit Drain Piping 14 DIP Switch Setting 15 Group Control Setting 19 Model Designation 19 Airborne Noise Emission 19 Limiting concentration TABLE OF CONTENTS ...

Page 7: ...where noise prevention is taken into consideration Do not install the unit near the door way Ensure the spaces indicated by arrows from the wall ceiling or other obstacles The indoor unit must keep the maintenance space INSTALLATION PLACE 50 mm 50 mm 1 000 mm 400 mm 300 mm 300 mm 300 mm It s not possible to apply the duct indoor unit to this model Do not disassemble repair or modify the product to...

Page 8: ...can be connected after opening the inlet grille 1 Open the inlet grille manually 2 Open the control cover with screwdriver 3 Secure the control cover to the original position with the screw 4 Close the inlet grille WIRING CONNECTION Remote Control Wire Power Wire Communication Wire PT3 PF2 ...

Page 9: ... the wires of outdoor unit and the terminal No are the same as those of indoor unit respectively Resistance measurement position for incorrect wiring Make sure that the screws of the terminal are free from looseness Use O Ring or Y Ring when connecting Power cable and Connecting cable The connecting cable connected to the indoor and outdoor unit should be complied with the following specifications...

Page 10: ...e power sources specification Particularly note the relation between cable length and thickness 8 Do not install the leakage breaker in a place which is wet or moist Water or moist may cause short circuit 9 The following troubles would be caused by voltage drop down Vibration of a magnetic switch damage on the contact point there of fuse breaking disturbance to the normal function of a overload pr...

Page 11: ...e copper pipe to downward direction as you remove burrs in order to avoid to let burrs drop in the pipe Putting nut on Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after finishing flare work Flaring work 1 Firmly hold copper pipe in a bar with the dimension shown in below table 2 Carry out flaring work wi...

Page 12: ...t 1 0 kgf cm2 Nitrogen flow in the pipe when we lding If Nitrogen was not flown during welding many oxidized membranes may form inside the pipe and disturb the normal operations of valves and condensers Refrigerant Pipe Regulator Nitrogen Nitrogen Direction Taping Valve Rear Side Pipe Knock Out Side Pipe Knock Out Knock out hole PT3 PF2 Inclined Inside is shiny without scratches Smooth all round E...

Page 13: ...e plastic tube if necessary When using knock out hole to route the piping insert the plastic cover in knock out hole in order to prevent the piping from damaged by sharp edge of the hole The feature may be changed according to the type of model 200 mm 70 mm 70 mm 90 mm Wall Core Drill INSIDE OUTSIDE Tilt Cut if necessary More than 15 mm Wall Plastic tube Bushing INSIDE OUTSIDE Knock out hole Knock...

Page 14: ...Drain test The air conditioner uses a drain pump to drain water Use the following procedure to test the drain pump operation DIP Switch Setting Outdoor Unit In case that the products meet specific conditions Auto addressing function can start automatically with the improved speed by turning the DIP switch 3 of the outdoor unit and resetting the power Specific conditions All names of the indoor uni...

Page 15: ...e 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 5 In case that any error occurs at indoor unit the error code is displayed on the wired remote controller It is po...

Page 16: ...can be the cause of malfuctions when there is no setting of master and slave In case of Group Control it is possible to use following functions Selection of operation stop or mode Temperature setting and room temperature check Current time change Control of flow rate High Middle Low Reservation settings It is not possible at some functions It is possible to control 16 indoor units Max with the mas...

Page 17: ...connection with indoor units and Fresh Air Intake Unit In case of connecting with standard indoor unit and Fresh Air Intake Unit separate Fresh Air Intake Unit with standard units N M 16 Because setting temperature are different 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 ...

Page 18: ...nit to Master set the others to Slave Set only one wired remote controller to Master set the others to Slave 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 that any error occurs at indoor unit the error code is...

Page 19: ...s Indoor unit 2 EA Wired remote controller 1 EA Indoor unit 1 EA Wired remote controller 2EA PZCWRCG3 cable used for connection PZCWRC2 cable used for connection Slave Master Master PZCWRCG3 Master Slave PZCWRC2 Apply totally enclosed noncombustible conduit in case of local building code Requiring plenum cable usage CAUTION ...

Page 20: ...zard and risk ARN U G 96 A PF 4 Serial Number Chassis Name Electrical Ratings 3 1 Ø 208 230 V 60 Hz G 1 Ø 220 240 V 50 Hz 1 Ø 220 V 60 Hz Total Cooling Capacity in Btu h EX 5 000 Btu h 05 18 000 Btu h 18 Combination of Inverter Type and Cooling Only or Heat Pump N AC Inverter and H P V AC Inverter and C O U DC Inverter and H P and C O System with Indoor Unit using R410A LGETA U Ex URN Combinations...

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