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INSTALLATION 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
Duct
MFL62760206
Rev.00_070423
Copyright © 2023 LG Electronics Inc. All Rights Reserved.
www.lg.com
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Table of Contents
Related Manuals for LG ZB-Q18GL5A1
Summary of Contents for LG ZB-Q18GL5A1
- Page 1 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 Duct www.lg.com MFL62760206 Rev.00_070423 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 ......................4 CAUTION ......................5 INSTALLATION Location Selection ....................8 Minimum Floor Area..................9 Indoor Unit Installation...................12... -
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: Warning
SAFETY INSTRUCTIONS Notes for Flammable Refrigerant The following symbols are displayed on units. This symbol indicates that this appliance uses a flammable refrigerant. If the refrigerant is leaked and exposed to an external ignition source, there is a risk of fire. This symbol indicates that the Owner's Manual should be read carefully. -
Page 5: Caution
SAFETY INSTRUCTIONS • Perform electrical work according to the installation manual and be sure to use an exclusive circuit. - If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock. - Page 6 SAFETY INSTRUCTIONS • Do not install the unit in a place where an inflammable gas leaks. - If gas leaks and accumulates in the area surrounding the unit, it could cause an explosion.
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Page 7: Installation Location Selection
INSTALLATION INSTALLATION Location Selection • Installation the ceiling opening to clean the filter or service under the product. Select the Best Location 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. - Page 8 INSTALLATION Number Distance Remarks Name Quant Shape between inspectio False Wireless Remote 1 EA n hole ceiling & Actual ceiling Hole size Less than Minimum height for should be 20 cm motor replacement more Ohter • Owner's than the manual size of IDU.
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Page 9: Minimum Floor Area
INSTALLATION Minimum Floor Area 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. •... - Page 10 INSTALLATION Floor Standing Wall Mounted Ceiling Mounted m (kg) m (kg) m (kg) 67.27 7.47 5.00 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...
- Page 11 INSTALLATION Indoor Unit Installation Ceiling Dimension and Hanging Bolt Location Install the unit above the ceiling correctly. Case 1 Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. Apply a filter accessory at air return hole. Drain pump use Drainage hole Capacity (Btu/h) Dimension (mm)
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Page 12: Indoor Unit Installation
INSTALLATION • 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. - Page 13 INSTALLATION Indoor Unit Installation Part Name and Function • Select and mark the position for fixing bolts. Low static duct type in case of suction from back side • Drill the hole for set anchor on the face of ceiling. Low static duct type in case of suction from bottom side CAUTION...
- Page 14 INSTALLATION Indoor Unit Drain Piping • When the test is complete, connect the flexible drain hose to the drain port on the indoor unit. • Drain piping must have down-slope (1/50 to 1/ 100): be sure not to provide up-and-down slope to prevent reversal flow.
- Page 15 INSTALLATION tightly fastened. (If they are loose, it could give Refrigerant pipe and thermal insulator (Local rise to burn-out of the wires.) supply) - Specification of power source Hose clip for thermal insulator (Local supply) - Confirm that electrical capacity is sufficient. Thermal insulator for refrigerant pipe (Local - Be sure that the starting voltage is maintained supply)
- Page 16 INSTALLATION Outdoor Unit Best Location and Piping The heat exchanger coils and panel vents of the outdoor unit should be checked regularly. If clogged with dirt or soot, the heat exchanger and panel vents may be professionally steam cleaned. NOTE •...
- Page 17 INSTALLATION Model ZB-Q18GL5A1 ZB-Q24GL6A1 Capacity 1.5 TR 2.0 TR Indoor dimension 1100 Outdoor dimension...
- Page 18 INSTALLATION Outdoor Unit Model Q18GL5A Q24GL6A • If an awning is built over the unit to prevent direct sunlight or rain exposure, be careful that heat radiation from the condenser is not Capacity 1.5 TR 2.0 TR restricted. Additiona • There should not be any animals or plants which l gas could be affected by hot air discharged.
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Page 19: Drain Piping
INSTALLATION 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. Indoor unit Outdoor unit Drain Piping... - Page 20 INSTALLATION • Carry out flaring work using flaring tool as If flare is noted to be defective, cut off the shown below. flared section and do flaring work again. Smooth all round Copper pipe Inside is shining without scratches. Clamp handle Even length all round Red arrow mark Improper flaring...
- Page 21 INSTALLATION carbonic gas) to prevent formation of oxidation Finally tighten the flare nut with torque wrench file in copper piping; otherwise, the refrigerant until the wrench clicks. circuit will clog. The blowing of nitrogen gas (or • When tightening the flare nut with torque carbonic gas) through 3-way valves are wrench, ensure the direction for tightening described in the following:...
- Page 22 & wire specification. A disconnect all supply lines must be fitted. Model Capacity 1 phase Main power source Mm2*core Circuit breaker ZB-Q18GL5A1 1.5 TR 1.5 mm2*3 Switch box Indoor ZB-Q24GL6A1 2.0 TR 2.5 mm2*3 Outdoor For connection between of indoor •...
- Page 23 INSTALLATION First, fasten the steel clamp with a screw to the Model Capacity 1 phase No of core inner boss of control panel. 2.0 TR 0.75 Q24GL6A For the cooling model, fix the other side of the clamp with a screw strongly. NOTE Connecting the cable to the outdoor •...
- Page 24 INSTALLATION Form the pipings CAUTION In case of the outdoor unit being installed • After the confirmation of the above conditions, below position of the indoor unit. prepare the wiring as follows: • Never fail to have an individual power specialized for the air conditioner.
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Page 25: Ir Receiver
INSTALLATION In case of the outdoor unit being installed • This IR remote sensor is equipped with LED above position of the indoor unit. display and ON/OFF button. For proper display of the IR remote sensor. The IR remote sensor should be installed properly as shown in the figure. - Page 26 INSTALLATION Or else it can touch and hurt the IR PCB. Fix the rear side of the installation board with the screw. Check the mark Up & Down on bottom case inside. Ceiling Bottom case Use the screws for fixing the unit firmly on the ceiling.
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Page 27: After Installation
After Installation After Installation Air Purge Disconnect the charge hose and fit the nut to the service port. (Tightening torque: 1.8 kg.m) Air Purge of the Connecting Pipes and the Indoor Unit The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the compressor. - Page 28 After Installation Outdoor unit Signal detector: Receives the signal from Cooling model: Low static type air conditioner for remote control. cooling Timer lamp (Green): Lights up during the timer operation. Hot start lamp (Orange): Available only for the heat pump models, not cooling only models.