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OWNER'S MANUAL
AIR CONDITIONER
Before beginning installation, read these instructions
carefully. This will simplify installation and ensure that the
product is installed correctly and safely. Leave these
instructions near the product after installation for future
reference.
ENGLISH
MFL62760207
Rev.00_070523
Copyright © 2023 LG Electronics Inc. All Rights Reserved.
www.lg.com
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Summary of Contents for LG ZT-Q18GNLH1
- Page 1 Before beginning installation, read these instructions carefully. This will simplify installation and ensure that the product is installed correctly and safely. Leave these instructions near the product after installation for future reference. ENGLISH www.lg.com MFL62760207 Rev.00_070523 Copyright © 2023 LG Electronics Inc. All Rights Reserved.
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Page 2: Table Of Contents
TABLE OF CONTENTS This manual may contain images or content that may be different from the model you purchased. This manual is subject to revision by the manufacturer. SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USE............3 WARNING ......................3 CAUTION ......................5 INSTALLATION Location Selection ....................7 Indoor Unit Installation...................11 AFTER INSTALLATION... -
Page 3: Safety Instructions
SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USE 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. Safety Messages This symbol is displayed to indicate matters and operations that can cause risk. - Page 4 SAFETY INSTRUCTIONS • Failure to carefully read and follow all instructions in the manual can result in equipment malfunction, property damage, personal injury and/or death. • Compliance with national gas regulations shall be observed. • Ducts connected to an appliance shall not contain an ignition source. (For R32) Installation •...
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Page 5: Caution
SAFETY INSTRUCTIONS • Do not use the damaged power cord. • Do not modify or extend the power cord randomly. • Take care so that the power cord may not be pulled during operation. • Unplug the unit if strange sounds, smell or smoke comes from it. •... - Page 6 SAFETY INSTRUCTIONS • Always inspect gas leakage after the installation and repair of product. • Keep level parallel in installing the product. • Means for disconnection must be incorporated in the fixed in accordance with the wiring rules. • Do not install the unit in potentially explosive atmospheres. Operation •...
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Page 7: Installation Location Selection
INSTALLATION INSTALLATION Location Selection Installation Places • There should not be any heat source or steam near the unit. • There should not be any obstacles to prevent the air circulation. • A place where air circulation in the room will be good •... - Page 8 INSTALLATION When using the bottom sheet, please use it after separating the installation sheet from packing of the product floor by using a knife etc as a picture below.
- Page 9 INSTALLATION Required Floor Area for R32 Unit • The appliance must be installed, operated and stored in a room with a floor area larger than the minimum area. • Use the graph and table to determine the minimum area. • m : Total refrigerant amount in the system •...
- Page 10 INSTALLATION Floor Standing Wall Mounted Ceiling Mounted m (kg) m (kg) m (kg) 77.22 8.58 5.74 87.86 9.76 6.54 99.19 11.02 7.38 111.20 12.36 8.27 123.90 13.77 9.22 137.29 15.25 10.21 151.36 16.82 11.26 166.12 18.46 12.36 181.56 20.17 13.50 197.70 21.97 14.70...
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Page 11: Indoor Unit Installation
INSTALLATION Indoor Unit Installation • Decide the position for fixing bolts slightly tilted to the drain direction after considering the direction of drain hose. Precaution for Installing Indoor • Drill the hole for anchor bolt on the wall. Unit NOTE •... - Page 12 INSTALLATION • Avoid places where inflammable gas is Adjust the same height generated. Paper model for installation • Avoid place where noxious gas is generated. Set screw of paper model (4 pieces). • Avoid places near high frequency generators. Open the ceiling board along the outer edge of the paper model.
- Page 13 INSTALLATION • Piping material: Polyvinyl chloride pipe VP-25 • Be sure to check the drain pump for normal and pipe fittings operating and noise when electrical wiring is complete. • Be sure to execute heat insulation on the drain piping. •...
- Page 14 INSTALLATION confirmed that there is not any default. Capacity (TR/ However, if it is operated for a long time in high Model 1 Phase humid atmosphere (dew point tempera— ture: more than 23°C), water drops are liable to fall. In 3/10.55 this case, add heat insulation mate- rial Q36GNLH1...
- Page 15 INSTALLATION Remote controller cord Rated current of Nominal cross- appliance A sectional area mm CAUTION • The connecting cable connected to the indoor 0.75 and outdoor unit should be complied with the following specifications. (This equipment shall 6 and be provided with a cord set complying with the national regulation.) 10 and 16 and...
- Page 16 INSTALLATION It is forbidden to It is forbidden to 1 phase Capacity (TR/ connect two to one connect wiring of Model side. different thickness. *core 1.5/5.15 1.5mm Q18GNLH1 ZT-Q18GPLA1 1.5/5.27 1.5mm 2/6.75 1.5mm Q24GNLA1 2/7.05 2.5mm Q24GNLH1 • For wiring, use the designated power wire and connect firmly, then secure to prevent outside 3/10.55 2.5mm...
- Page 17 INSTALLATION Decorative Panel Installation Capacity No of Model 1 phase Procedure (TR/kW) core The decorative panel has its installation direction. 1.5/5.27 0.75mm Q18GPLA Before installing the decorative panel, always remove the paper template. 2/6.75 0.75mm Remove the packing and take out air inlet grille Q24GNLA from front panel.
- Page 18 INSTALLATION Fit the panel on the unit by inserting hooks as Fit the corner covers. shown in the picture. Open 2 screws of control panel cover. Insert 2 screws on diagonal corners of panel. Do not tighten the bolts completely. (The fixing screws are included in the indoor unit box.) Check the alignment of panel with the ceiling.
- Page 19 INSTALLATION Close the cover for control box. Install the air inlet grille and filter on the panel. CAUTION • Install certainly the decorative panel. - Cool air leakage may generate defrost. - Water drops fall. Good example Air conditioner unit Ceiling board Decorative panel Fit the insulator (this part) and be careful for cool air leakage...
- Page 20 INSTALLATION Air conditioner unit Cool air leakage (No good) Ceiling board Decorative panel...
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Page 21: After Installation Test Running
AFTER INSTALLATION AFTER INSTALLATION Test Running - Is there any faulty wiring? - Are not terminal screws loosened? Test Running Procedure M4..118 N.cm [12 kgf.cm] M5..196 N.cm [20 kgf.cm] Precautions in Test Run M6..245 N.cm [25 kgf.cm] • The initial power supply must provide at least 90 M8..588 N.cm [60 kgf.cm] % of the rated voltage. -
Page 22: Installation Instructions
AFTER INSTALLATION Installation Instructions How to Enter Installer Setting Mode Installer setting mode set the detail function of the remote controller. If the installer setting mode does not set correctly, it can cause problems to the product, user injury or property damage. - Page 23 AFTER INSTALLATION Installer Setting Code Table Remote Controller Function Function Code Setting Value 0: Set to master Mode override 1: Set to slave 1: Standard 2: Low Ceiling height selection 3: High 4: Super high 0: Set to master Group control 1: Set to slave 2: Check master/slave 3: Set to auxiliary heater...
- Page 24 AFTER INSTALLATION Setting Address of Central Control Press MODE and RESET button simultaneously. Press button for setting the indoor unit address. • Setting range: 00 ~ FF After setting the address, press button toward the indoor unit 1 time. The indoor unit will display the set address to complete the address setting.