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Heat Pump Indoor Unit
INSTALLATION MANUAL
MODELS: LRNN, LRNV-BE/BG/BH Series
Type: Ceiling Concealed Duct - High Static
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 MULTI V LRNN-BE Series
Summary of Contents for LG MULTI V LRNN-BE Series
- Page 1 website http://www.lgservice.com System Heat Pump Indoor Unit INSTALLATION MANUAL MODELS: LRNN, LRNV-BE/BG/BH Series Type: Ceiling Concealed Duct - High Static 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
Ceiling Concealed Duct - Low Static Type Indoor Unit Installation Manual TABLE OF CONTENTS Installation Requirements Required Parts Required Tools Installation Parts Provided..3 Safety Precautions....4 ❏ Installation guide map ❏ Level gauge Installation ❏ Four type "A" screws & plastic ❏... -
Page 3: Installation Parts Provided
Installation Parts Provided Installation Air outlet vents Air filters Air intake vents Remote Controller Screws for Insulation for Clamp (Other) Clamp metal Name Drain hose duct flanges fitting Quantity 1 EA 1 EA 1 set 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. I Be sure to read before installing the air conditioner. I Be sure to observe the cautions specified here as they include important items related to safety. I Incorrect operation due to ignoring instruction will cause harm or damage. - Page 5 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 I 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: 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: Ceiling Opening Dimension And Hanging Bolt Location
Installation Ceiling dimension and hanging bolt location I 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. (Unit:mm) Dimension Capacity [kW(Btu/h)] 186/246BH 355 45.5 450... -
Page 9: Wiring Connection
Installation • Select and mark the position for fixing bolts. • Insert the set anchor and washer onto the suspen- • Drill the hole for set anchor on the face of ceiling. sion bolts for locking the suspension bolts on the ceiling. -
Page 10: Check The Drainage
Installation THERMAL INSULATION All thermal insulation must comply with local requirement. Union for liquid pipe Thermal insulator for refrigerant pipe (Local supply) Thermal insulator for Refrigerant pipe and thermal piping(Local supply) insulator(Local supply) Hose crip for thermal insulator (Local supply) Overlap with thermal Thermal insulator for refrigerant pipe insulator for piping. - Page 11 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 5mm. Front of view • The unit must be horizontal or declined to the drain hose connected when finished installation.
- Page 12 Installation CAUTION: After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be guided by the circuit diagram pasted on the inside of control box cover. 2) Provide a circuit breaker switch between power source and the unit.
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Page 13: 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 14: Drain Pipe 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 15 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...
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Page 16: Installation Of Drain Pump
Installation Installation of drain pump 1) Safety First • Cut off the power supply before installation and maintenance. • Drain Pump Assy, Elbow and Hose must be installed at safe area where it is far away from the user. • Drain Pump Assy must be installed at appointed location. •... - Page 17 Installation 5) Attention 1. Possible drain-head height is up to 700mm. So, it 1/50~1/100 must be installed below 700mm. 1/50~1/100 2. Keep the drain hose downward up to 1/50~1/100 1/50~1/100 1/50~1/100 inclination. Drain Pipe Prevent any upward flow or reverse flow in any part.
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Page 18: Optional Operation
Installation Optional operation 1) Two Thermistor System (1) Open the rear cover of the wired remote-control to set Room Temp. sensor the mode. Slide switch for 2 Thermistor (2) Select one of three selectable modes as follows. R13H R12H OP5R16H CO1H •... - Page 19 P/No.: 3828A23004B Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.