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Vertical Air Handling Unit

Installation

Dip Switch Setting

For Multi V Models, DIP switch 1, 2, 6, 8 must be set OFF.

CAUTION

Function

Description

Setting Off

Setting On Default

SW1

Communication N/A (Default)

Off

SW2

Cycle

N/A (Default)

Off

SW3

Group Control

Selection of Master or
Slave

Master

Slave

Off

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

Off

SW6

Heater linkage N/A

Off

SW7

Ventilator link-
age

Selection of Ventilator
linkage

Linkage Removal

Working

Off

Vane selection
(Console)

Selection of up/down
side Vane

Up side + Down side Vane

Up side Vane

Only

Region selec-
tion

Selection tropical
region

General model

Tropical

model

SW8

Etc.

Spare

Off

1. Indoor Unit

2. 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 units are ARNU****4.
- The serial number of Multi V super IV (outdoor units) is after October 2013.

DIP switch 7 segment

Outdoor Unit PCB

Outdoor Unit DIP Switch

Содержание MULTI V ARNU363NJA4.AMBBLUS

Страница 1: ...rmed in accordance with the national wiring standards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly INSTALLATION MANUAL AIR CONDITIONER P NO MFL65003108 http www lghvac com www lg com Copyright 2014 2018 LG Electronics Inc All Rights Reserved ENGLISH FRANÇAIS ESPAÑOL ...

Страница 2: ...e added support in a room Properly insulate any tubing run inside a room to prevent sweating that can cause dripping and water damage to wall and floors in moist or uneven locatinons Use a raised concrete pad or concrete blocks provide a solid level foundation for the outdoor unit This prevents water damage and abnormal vibration in an area with high winds Securely anchor the outdoor unit down wit...

Страница 3: ...ons 6 Installation 9 Selection of the best location 9 Upflow Installation 10 Duct work 11 Horizontal left Installation 12 Preparation of Piping 13 Connecting Pipes to the Indoor Unit 13 Plumbing materials and storage methods 15 Insulation 17 Condensate Drain 18 Wiring Connection 20 Electric Heater 23 Dip Switch Setting 24 Group Control Setting 25 Model Designation 29 Airborne Noise Emission 29 Lim...

Страница 4: ...uts for conduit Wiring knockouts for conduit Refrigerant connections Drain connections for horizontal application Filter access Drain connections for upflow application Feature 4 Vertical Air Handling Unit Features ...

Страница 5: ...ant Connections Pipe size A B C D E F G H I J Height Width Depth Power Commu nication Liquid Gas 12 1 0 18 1 5 48 5 8 1236 18 457 21 3 8 540 1 9 16 40 17 1 2 445 20 530 17 432 12 1 8 308 1 11 16 43 7 8 22 1 4 6 35 1 2 12 7 24 2 0 30 2 5 36 3 0 48 5 8 1236 18 457 21 3 8 540 1 9 16 40 17 1 2 445 20 530 17 432 12 1 8 308 1 11 16 43 7 8 22 3 8 9 52 5 8 15 88 42 3 5 48 4 0 54 4 5 55 1 8 1401 25 635 21 ...

Страница 6: ...ox 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 install remove or re install the unit by yourself customer There is r...

Страница 7: ...hen flammable gas leaks turn off the gas and open a window for ventilation before turn the prod uct on Do not use the telephone or turn switches on or off There is risk of explosion or fire If strange sounds or small or smoke comes from product Turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane...

Страница 8: ...o not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on or put anyting on the product outdoor units There is risk of personal injury and failure of product Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and c...

Страница 9: ...imit Refer to the installation manual for the outdoor unit Vertical Air Handling Unit can be installed for upflow and horizontal left positions NOTE The primary and secondary drain line must be trapped to allow proper drainage of condensate water If the secondary drain line is not used it must be capped Selection of the best location More than 600 23 5 8 clearance from access panels for Service Mo...

Страница 10: ...ccessory components including filter box The minimum height clearance is 14inches 350mm to maintain proper air flow Vibration isolators purchased locally must be placed between the unit and the pedestal An illustration showing an example of where a vibration isolator should be added would clarify what the installing contractor should do to properly position the isolator More than 6 screws M4 25L F...

Страница 11: ...ioned space Internal acoustical insulation lining may necessary for the metal duct system if it do not have 90 elbow and 10ft of main duct to first branch takeoff It is advised that a fibrous duct work could be used as a substitute if built and installed in accordance with the most recent edition of SMACNA construction standard on fibrous glass ducts Collectively fibrous duct work and acoustical l...

Страница 12: ...upport should comparatively bigger than the unit and the unit must be place at centre of the support Locally available vibration isolators must be placed between the unit and the support The same installation method of up flow type has to be used in the case of Return Plenum and sup ply duct Installation Horizontal left Installation To ensure proper drainage for horizontal installations unit must ...

Страница 13: ...ged in order to avoid dropping burrs into the tubing Copper pipe 90 Slanted Uneven Rough Pipe Reamer Point down Connecting Pipes to the Indoor Unit Cutting the Pipe for 3 8inch 9 52mm Cutting Position is less than 0 4inch 10mm Liquid pipe Gas pipe Brazing for 1 4inch 6 35mm Cut the e Liquid pipe Gas pip Upper front panel Air filter cover Top screw Bottom screw Lower front panel Refrigerant pipe co...

Страница 14: ... 6 35mm Gas pipe Cap Cap Cap Brazing Brazing Brazing Cut the edge Cut the edge Liquid pipe Liquid pipe Gas pipe Gas pipe Cut the edge Liquid pipe Gas pipe ess m Lower front panel Upper front panel Refrigerant pipe cover Cut the edge Liquid pipe Gas pipe 4 Detach Liquid and Gas Pipe Gas Pipe Remove the Cap by Brazing Liquid Pipe There are 2 kinds of Liquid Pipe 3 Cut the refrigerant pipe Liquid Pip...

Страница 15: ...ure Dust Leakage 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 Cou...

Страница 16: ...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 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 dioxid...

Страница 17: ...ipe Field supply Thermal insulator for Piping Field supply Hose crip for thermal insulator Field supply Classification Air conditioned location Non air conditioned location Note1 General location Note2 Special location Note3 General location Note4 Negative condition Liquid Pipe Ø1 4 6 35 Above t 3 8 9 52 Above t 3 8 9 52 Above t 3 8 9 52 Above t 3 8 9 52 Ø3 8 9 52 Above Ø1 2 12 7 Above t 1 2 12 7 ...

Страница 18: ...downward Care should be taken to not use pipe joint connection or PVC CPVC for units drain line connection Use only Teflon tape For preventing winter freeze up on condensate line special means should be provided for drainage Note 1 General location When the pipe passes through indoors in which the indoor unit is operated Apartment classroom office mall hospital office tel etc Note 2 Special locati...

Страница 19: ...CORRECT 3 4 inch 19 05mm connector Horizontal left Drain Knockout Air filter cover Main drain along with suitable trap Field supplied trap with sufficient depth can be used P traps of standard size are not sufficient Refer the figure for recommended condensate trap Supplementary drain with proper trap field supplied kit can be used The supplied flexible drain hose should not be strained A strained...

Страница 20: ... B A B GND 12V DRY2 DRY1 INTERNET Terminal block of outdoor unit IDU SODU NJ Chassis COMMUNICATION LINE IDU ODU Terminal Block Indoor L L1 N L2 Terminal Block Indoor RD YL A B BK POWER INPUT WIRED REMOTE CONTROLLER A B A B A B GND 12V DRY2 DRY1 INTERNET Terminal block of outdoor unit IDU SODU Wiring knockouts Control Box Cover Upper Front Panel Wiring Connection 1 Detach the upper panel control bo...

Страница 21: ... between cable length and thickness 8 Never fail to equip GFCI breaker when installing the air handler near wet or moist loca tions 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 Te...

Страница 22: ...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 out...

Страница 23: ...NEH053B1 10kW ANEH103B2 15kW ANEH153B2 20kW ANEH203B2 Note Image shown above may vary depends on model capacity Available heater in model Feature Example 5kW Capacity kBtu h RT Heater Capacity kW 5 10 15 20 12 1 0 Not available Not available Not available 18 1 5 Not available Not available Not available 24 2 0 Not available Not available 30 2 5 Not available Not available 36 3 0 Not available Not ...

Страница 24: ... Heater linkage N A Off SW7 Ventilator link age Selection of Ventilator linkage Linkage Removal Working Off Vane selection Console Selection of up down side Vane Up side Down side Vane Up side Vane Only Region selec tion Selection tropical region General model Tropical model SW8 Etc Spare Off 1 Indoor Unit 2 Outdoor Unit In case that the products meet specific conditions Auto addressing function c...

Страница 25: ...s remote controller 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...

Страница 26: ... master and slave h 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 to use some functions h It is possible to control 16 indoor units Max with the master wired remote control h Other than those it is s...

Страница 27: ...ndard FAU FAU Standard Standard FAU FAU Fresh Air Intake Unit Standard Standard Indoor Unit h In case of connecting with standard indoor unit and Fresh Air Intake Unit separate Fresh Air In take Unit with standard units N M 16 Because setting temperature are different h Other than those it is same with Group Control 1 3 Group Control 3 n Mixture connection with indoor units and Fresh Air Intake Un...

Страница 28: ...se 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 displayed on the wired remote controller 6 There isnʼt limits of indoor unit function 5 Accessories for group control setting It is possible to set group control by using below accessories Indoor unit 2 ...

Страница 29: ... refrigerant leaks in the air The limiting concentration shall be described in the unit of kg m3 Freon gas weight per unit air volume for facilitating calculation n Calculate refrigerant concentration Refrigerant concentration Total amount of replenished refrigerant in refrigerant facility kg Capacity of smallest room where indoor unit is installed m3 Limiting concentration ARN U 3 36 A NJ 4 Seria...

Страница 30: ...9 1 0 54 4 5 High 1475 77 82 87 93 98 102 110 115 115 115 Middle 1400 74 79 84 91 96 102 110 115 115 115 Low 1260 67 75 80 87 90 98 102 110 115 115 48 4 0 High 1400 74 79 84 91 96 102 110 115 115 115 Middle 1260 67 75 80 87 90 98 102 110 115 115 Low 1000 56 65 72 77 84 90 98 105 108 115 42 3 5 High 1250 67 75 80 87 90 98 102 110 115 115 Middle 1100 61 67 75 80 87 92 100 108 110 115 Low 1000 56 65 ...

Страница 31: ...ice will turn off the heater according to the airflow in wc inch Water Column inAq Product Data Minimum airflow by heater capacity Unit CFM Do not use less than minimum airflow There is risk of fire or damage to the product Capacity kBtu h RT Heater Capacity kW 5 10 15 20 12 1 0 380 Not available Not available Not available 18 1 5 380 Not available Not available Not available 24 2 0 480 480 Not av...

Страница 32: ...s a rating MERV 5 or above it can cause cooling heating capacity down Capacity kBtu h RT Flow Rate CFM Static pressure drop in WC 12 1 0 High 530 0 02 Middle 480 0 02 Low 380 0 01 18 1 5 High 580 0 03 Middle 530 0 02 Low 480 0 02 24 2 0 High 710 0 04 Middle 640 0 03 Low 480 0 02 30 2 5 High 880 0 05 Middle 800 0 05 Low 630 0 03 36 3 0 High 990 0 07 Middle 880 0 05 Low 800 0 05 42 3 5 High 1250 0 1...

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