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INSTALLATION MANUAL
AIR
CONDITIONER
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.
CEILING CONCEALED DUCT
Original instruction
MFL69190210
Rev.02_051719
Copyright © 2015 - 2019 LG Electronics Inc. All Rights Reserved.
www.lg.com
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Summary of Contents for LG UB85W.N94R0
- Page 1 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. CEILING CONCEALED DUCT Original instruction www.lg.com MFL69190210 Copyright © 2015 - 2019 LG Electronics Inc. All Rights Reserved. Rev.02_051719...
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Page 2: Table Of Contents
Table of contents TABLE OF CONTENTS FEATURES SAFETY PRECAUTIONS INSTALLATION Selection of the best location THE INDOOR UNIT INSTALLATION Indoor Unit Drain Piping Drain test Thermal insulation of refrigerant piping Wiring Connection REMOTE CONTROLLER INSTALLATION Wired remote controller installation OPTIONAL OPERATION Installer Setting - Test Run Mode Installer Setting - Setting Address of Central Control Installer Setting - Thermistor... -
Page 3: Features
Features Features Air intake vents Air outlet vents Air filters Wired Remote Controller Washer for Clamp Insulation for Name (Other) hanging bracket (Tie Wrap) fitting Quantity 8 EA 4 EA 1 SET • Owner's manual • Installation manual for gas pipe Shape for liquid pipe Installation Manual 3... -
Page 4: Safety Precautions
Safety Precautions Safety Precautions To prevent the injury of the user or other people and property damage, the following instructions must be followed. n Be sure to read before installing the air conditioner. n Be sure to observe the cautions specified here as they include important items related to safety. n Incorrect operation due to ignoring instruction will cause harm or damage. - Page 5 Safety Precautions • Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box cover are removed or opened. - Otherwise, it may cause fire, electric shock, explosion or death. Operation • Do not modify or extend the power cable randomly. - Otherwise, it may cause a fire or electrical shock.
- Page 6 Safety Precautions CAUTION Installation • Install the drain hose to ensure that drain can be securely done. - Otherwise, it may cause water leakage. • Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to the neighbors.
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Page 7: Installation
Installation Installation Read completely, then follow step by step. Selection of 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: The Indoor Unit Installation
The indoor unit installation The indoor unit installation Installation of Unit Install the unit above the ceiling correctly. CASE 1 POSITION OF SUSPENSION BOLT • Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. • Apply a filter Accessory at air return hole. (Unit:mm) Dimension A B C D E F G H... - Page 9 The indoor unit installation • Select and mark the position for fixing bolts. • Drill the hole for set anchor on the face of ceiling. • Insert the set anchor and washer onto Old building New building the suspension bolts for locking the suspension bolts on the ceiling.
- Page 10 The indoor unit installation CAUTION 1. Install declination of the indoor unit is very important for the drain of the duct type air conditioner. 2. Minimum thickness of the insulation for the connecting pipe shall be 5 mm. Front of view •...
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Page 11: Indoor Unit Drain Piping
The indoor unit installation Indoor Unit Drain Piping • Drain piping must have down-slope (15 mm ~ 25 mm): be sure not to provide up-and- Upward Pipe clamp routing down slope to prevent reversal flow. not allowed • During drain piping connection, be careful Indoor unit not to exert extra force on the drain port on the indoor unit. - Page 12 The indoor unit installation 1) Remove the Air Filter. 2) Check the drainage. • Spray one or two glasses of water upon the evaporator. • Ensure that water flows drain hose of indoor unit without any leakage.
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Page 13: Thermal Insulation Of Refrigerant Piping
The indoor unit installation Thermal insulation of refrigerant piping Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat-resistant polyethylene, so that no gap is observed in the joint between indoor unit and insulating material, and insulating materials themselves. -
Page 14: Wiring Connection
The indoor unit installation Wiring Connection • Open the control box cover and connect the Remote controller cord and Indoor power wires. • Remove the control box cover for electrical connection between the indoor and outdoor unit. (Remove screws ¿.) •... -
Page 15: Remote Controller Installation
Remote Controller Installation Remote Controller Installation 1. Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup. - Please set it up not to bend because poor setup could take place if setup board bends. -
Page 16: Wired Remote Controller Installation
Remote Controller Installation 4. Please connect indoor unit and remote controller using connection cable. 12 V Please check if connector is normally connected. Signal Yellow Black Indoor Unit side Connecting cable 5. Please use extension cable if the distance between wired remote controller and indoor unit is more than 10 m. -
Page 17: Optional Operation
Optional Operation Optional Operation Installer Setting - Test Run Mode After installing the product, you must run a Test Run mode. For details related to this operation, refer to the product manual. If pressing button long for 3 seconds, it enters into remote controller setter setup mode. -
Page 18: Installer Setting - Setting Address Of Central Control
Optional Operation Installer Setting - Setting Address of Central Control It's the function to use for connecting central control. Please refer to central controller manual for the details If pressing button long for 3 seconds, it enters into remote controller setter setup mode. - If pressing once shortly, it enters into user setup mode. -
Page 19: Installer Setting - Thermistor
Optional Operation Installer Setting - Thermistor This is the function to select the temperature sensor to judge the room temperature. If pressing button long for 3 seconds, it enters into remote controller setter setup mode. - If pressing once shortly, it enters into user setup mode. -
Page 20: Installer Setting - Group Setting
Optional Operation Installer Setting - Group Setting It is a function for settings in group control, or 2-remote controller control. If pressing button long for 3 seconds, it enters into remote controller setter setup mode. - If pressing once shortly, it enters into user setup mode. -
Page 21: Installer Setting - Dry Contact Mode Setting
Optional Operation Installer Setting - Dry Contact Mode Setting Dry contact function is the function that is possible to use only when dry contact equipment is separately purchased/setup. If pressing button long for 3 seconds, it enters into remote controller setter setup mode. - If pressing once shortly, it enters into user setup mode. -
Page 22: Installer Setting - Optional Function Setting
Optional Operation Installer Setting - Optional Function Setting Setting feature for indoor unit when Plasma purification / Electric heater / Dehumidifier / Elevation grill / Ventilation kit / Auxiliary heater is newly installed, or installed unit is removed. If pressing button long for 3 seconds, it enters into remote controller setter setup mode. -
Page 23: How To Set E.s.p
How to Set E.S.P? How to Set E.S.P? Installer Setting - E.S.P. This is the function that decides the strength of the wind for each wind level and because this function is to make the installation easier. • If you set ESP incorrectly, the air conditioner may malfunction. •... -
Page 24: Installer Setting - Static Pressure Step Setting
How to Set E.S.P? Installer Setting - Static Pressure Step Setting This function is applied to only duct type. Setting this in other cases will cause malfunction. This function is only available on some products. This is the function that static pressure of the product is divided in 11 steps for setting. OPER When pressing the button and... - Page 25 10(98) 12(118) 13(127) 14(137) 15(147) 16(157) 18(176) Model Step Setting Value 32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11 UB85W.N94R0 HIGH Static Pressure[mmAq(Pa)] 6(59) 7(69) 8(78) 9(88) 10(98) 12(118) 13(127) 14(137) 15(147) 16(157) 18(176) Model Step Setting Value 32:01 32:02 32:03 32:04...
- Page 26 How to Set E.S.P? Table 1 UB85W.N94R0/UB70W.N94R0 (Unit : CMM) Static Pressure[mmAq(Pa)] Setting value 6(59) 8(78) 10(98) 13(127) 15(147) 18(176) 20(196) 22(216) 24(235) Note : 1. The above table shows the correlation between the air rates and E.S.P.
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Page 27: Self-Diagnosis Function
Self-diagnosis Function Self-diagnosis Function Indoor Unit Error Ex) Error 03 (Remote controller error) 3 Times 3 Times 3 Times LED02G (GREEN) LED 1 LED 2 Indoor Description Error Code (Red) (Green) status 1 time ◑ Indoor Room sensor error 2 times ◑ Indoor in-pipe sensor error 3 times ◑...
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