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Heat Pump Indoor Unit
INSTALLATION MANUAL
MODELS: LRNN, LRNV-VB Series
Type: Convertible
website http://www.lgservice.com
System
IMPORTANT
• 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.
LG
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Table of Contents
Related Manuals for LG MULTIV LRNN Series
Summary of Contents for LG MULTIV LRNN Series
- Page 1 website http://www.lgservice.com System Heat Pump Indoor Unit INSTALLATION MANUAL MODELS: LRNN, LRNV-VB Series Type: Convertible IMPORTANT • 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.
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Page 2: Table Of Contents
Convertible Type Indoor Unit Installation Manual TABLE OF CONTENTS Installation Requirements Required Parts Required Tools Installation Parts Provided..3 Safety Precautions ....4 Installation Installation guide map Level gauge Four type "A" screws & plastic Screw driver anchors Electric drill Selection the best location ..7 Connecting cable Hole core drill Horizontal meter... -
Page 3: Installation Parts Provided
Installation Parts Provided Installation Part Provided (Ceiling/Wall Mounting) (Floor Mounting) Wired LCD Remote Control Washer for Insulation for (Other) Name Clamp metal Drain hose Clamp hanging backet fitting Quantity 1 EA 1 EA 8 EA 6 EA 1 set • Owner's manual •... -
Page 4: Safety Precautions
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Be sure to read before installing the air conditioner. Be sure to observe the cautions specified here as they include important items related to safety. Incorrect operation due to ignoring instruction will cause harm or damage. -
Page 5: Operation
Safety Precautions Do not modify or extend the Do not let the air conditioner Be cautious when unpacking power cable. run for a long time when the and installing the product. humidity is very high and a door or a window is left open. •... - Page 6 Safety Precautions Installation Always check for gas (refriger- Install the drain hose to ensure Keep level even when installing ant) leakage after installation or that water is drained away prop- the product. repair of product. erly. • Low refrigerant levels may cause •...
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Page 7: Selection The Best Location
Installation Installation Read completely, then follow step by step. Selection of the best location • 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
Installation Installation Before Installing, prepare Installation Plates • 'Installation Plates' are attached at the bottom of indoor unit. Side Plate Detach them by removing each 3 screws at both sides. • Detach 'Side Plate (R,L)' by removing each 2 screws on both sides. - Page 9 Installation • Insert the nuts and washer onto the suspension bolts for locking the suspension bolts on the ceiling. Anchor nut • Mount the suspension bolts to the anchor-nuts firmly. • Secure the Installation plates onto the Suspension Ceiling bolts (adjust level roughly.) using nuts, washers and Washer spring washers.
- Page 10 Installation • Secure the unit to the Installation Plates with four M8 bolts and washers. • Before working, refer to ‘Connecting pipe and cable to Indoor Unit’. • Hook up the Inlet Grille Hook to the cabinet. Inlet hanger • Hang the Inlet Hanger to the screw. Hook Cabinet Bottom •...
- Page 11 Installation CAUTION: 1. Install declination of the indoor unit is very important for the drain of the convertible type air conditioner. 2. Minimum thickness of the insulation for the connecting pipe shall be 7mm. 3. If the Installation Plates are fixed to horizontal line, the indoor unit after installing will be declined to the bottomside.
- Page 12 Installation 2) Installation on the Wall • Select and mark the position for fixing bolts and piping hole. Decide the position for fixing bolts slightly tilted to the drain direction after considering the direction of drain hose. • Drill the hole for anchor nut on the wall. Unit: mm •...
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Page 13: Installation On The Floor
Installation • Hook up the Inlet Grille Hook to the cabinet. • Hang the Inlet Hanger to the screw. • Fit the projection hooks of the side plates to the 'Side Panel' and the 'Front Panel' by lifting it. • Fasten the screws. 3) Installation on the floor Installation of Mount Bracket. -
Page 14: Piping And Drainage
Installation Piping and drainage 1) Connecting the pipes to the indoor unit The pipe can be connected to right side, bottom or back of the unit. 1. For the Right Side Piping • After bending an end of the connecting tube, align the center of the pipings and sufficiently tighten the flare nut with fingers. - Page 15 Installation Installation on the wall or floor 1) Connecting the pipes to the indoor unit 1. For the Right Rear Piping Piping • Remove the knock-out at the back side of the cabinet. • After bending an end of the connecting tube, align the center of the pipings and sufficiently tighten the flare nut Taping with fingers.
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Page 16: Check The Drainage
Installation 1. Remove the Air Filter. • To remove air filter, take hold of tab and pull slightly upwards. 2. Check the drainage. • Spray one or two glasses of water upon the evapo- rator. • Ensure that water flows drain hose of indoor unit without any leakage. -
Page 17: Wiring Connection
Installation 1) Connecting cables to the Indoor Unit 1. Remove the Air guide - L by loosening 2 screws after removing the Inlet grille from the Indoor unit. 2. Connect the wires to the terminals on the control board individually according to the outdoor unit connection. - Page 18 Installation CAUTION: After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power circuit specifically for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control cover. 2) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation.
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Page 19: Installation Of Remote Control
Installation Installation of Remote Control • Although the room themperature sensor is in the indoor unit, the remote control should be installed in such places away from direct sunlight and high humidity. Installation of the remote control • Select places that are not splashed with water. •... -
Page 20: Drain Piping Work
Installation Drain Pipe Work 1) Drain pipe gradient and support a) - The drain pipe must be fitted at a gradient of at least 1/100. - The drain pipe should be as short as possible and free from airlocks. Indoor unit Gradient of least 1 / 100 (1cm / 1m) b) - Suspension bolts should be used th support long stretches of drain pipe in order to ensure that a... -
Page 21: Important Points
Installation 3) Ground drain piping a) It is standard work practice to make connections to the main pipe from above. The pipe down from the combination should be as large as possible. Face the vent pipe mouth downward to keep foreign matter from penetrating the system Face piping downward... - Page 22 P/No.: 3828A23004J Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.
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