Table of Contents
Advertisement
Quick Links
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.
TYPE : Multi
P/NO : 3828A20480C
www.lg.com
Advertisement
Table of Contents
Related Manuals for LG L8UH100BFA0
Summary of Contents for LG L8UH100BFA0
- Page 1 • 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. TYPE : Multi www.lg.com P/NO : 3828A20480C...
-
Page 2: Table Of Contents
Multi Type Air Conditioner Installation Manual TABLE OF CONTENTS Installation Required Parts Required Tools Requirements Safety Precautions ..3 Installation of Indoor, Outdoor unit ....6 • Connecting cable • Level • Four Type "A" Screw • Screw driver Indoor Unit installation •... -
Page 3: Safety Precautions
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury. - Page 4 Safety Precautions Do not modify or extend the power cable. Be cautious when unpacking and installing the product. • There is risk of fire or electric shock. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator.
- Page 5 Safety Precautions CAUTION ■ Installation Always check for gas (refrigerant) leakage after Install the drain hose to ensure that water is installation or repair of product. drained away properly. • Low refrigerant levels may cause failure of • A bad connection may cause water leakage. product.
-
Page 6: Installation Of Indoor, Outdoor Unit
Installation of Indoor, Outdoor Unit Installation of Indoor, Outdoor Unit Selection of the best location 1. Indoor unit Cassette type • There should not be any heat source or steam 20 or more Ceiling near the unit. Ceiling Board • There should not be any obstacles to prevent Ceiling Board the air circulation. - Page 7 Installation of Indoor, Outdoor Unit Wall Mounted Type 1. Do not have any heat or steam near the unit. More than More than 20 cm 2. Select a place where there are no obstacles 10 cm in front of the unit. 3.
- Page 8 Installation of Indoor, Outdoor Unit Piping length and elevation Distributor Type Max Main Pipe Total Branch Max Branch Max Elevation Indoor - Indoor Model Total Length Length (A/B) Pipe Length Pipe Length (h1/h2) Elevation (h3) With Distributor A = 30 h1=30 L8UC/H100BFA0 None Distributor...
-
Page 9: Indoor Unit Installation
Indoor Unit Installation Indoor Unit Installation 1. Cassette type • The dimensions of the paper model for installing are the same as those of the ceiling opening dimensions. 600 (Ceiling opening) 790 (Ceiling opening) 875 (Ceiling opening) 572(Hanging bolt) 39.5 521(Hanging bolt) 785 (Hanging bolt) 39.5... - Page 10 Indoor Unit Installation Ceiling Keep the length of the bolt Hanging bolt from the bracket to 40mm (W3/8 or M10) Flat washer for M10 Air Conditioner body (W3/8 or M10) (accessory) Ceiling board Ceiling board Spring washer (M10) Flat washer for M10 (accessory) Set screw of Paper model...
- Page 11 Indoor Unit Installation 2. Duct type 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 F (G) Capacity 18 kBtu/h 932 880 355 45.5 450 30 87 750 163 24 kBtu/h...
- Page 12 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 the suspension bolts for locking the Old building New building suspension bolts on the ceiling.
- Page 13 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 10 mm. Front of view •...
- Page 14 Indoor Unit Installation 3. Wall Mounted type ■ Connection of piping - Indoor Preparing the indoor unit's piping and drain hose for installation through the wall. 1. Route the indoor tubing and the drain hose in the direction of rear left or right Drain hose 2.
- Page 15 Indoor Unit Installation ■ Indoor unit installation 1. Hook the indoor unit onto the upper portion of the installation plate.(Engage the two hooks Connecting of the rear top of the indoor unit with the cable upper edge of the installation plate.) Ensure that the hooks are properly seated on the Drain hose installation plate by moving it left and right.
- Page 16 Indoor Unit Installation 3. Bundle the piping and drain hose together by Wrap with vinyl tape wrapping them with vinyl tape over the range Pipe within which they fit into the rear piping housing section. Vinyl tape(wide) Drain hose CAUTION: Installation Information (For right piping) For right piping, follow the instruction below.
- Page 17 Indoor Unit Installation How to fix installation plate The wall you select should be strong and solid enough to prevent vibration Installation Plate 1. Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts.
-
Page 18: Wired Remote Controller Installation
Wired Remote Controller Installation Wired Remote Controller Installation DISASSEMBLING • Separate the under plate from Remote control box. Front case Lever carefully Remote control • Fix the cord clamps on the wall by the box open box body using a screw ø... -
Page 19: Wiring Connection
Wiring Connection Wiring Connection • Open the control box cover and connect the Remote controller cord and Indoor power Indoor power cord Control box cover Remote [Air inlet side view] controller cord Control box cover screw Installation Manual 19... -
Page 20: Connecting The Cable Between Indoor Unit And Outdoor Unit
Connecting the Cable between Indoor Unit and Outdoor Unit Connecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Indoor unit. Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection. - Page 21 Connecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Outdoor unit. 1. Remove the cover control from the unit by loosening the screw. Connect the wires to the terminals on the control board individually as the following. 2.
- Page 22 Connecting Pipes to the Indoor Unit Connecting Pipes to the Indoor Unit Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the Copper following procedure. Slanted Uneven Rough tube 90° 1.
- Page 23 Connecting Pipes to the Indoor Unit Piping Connection Connection of the pipes-Outdoor 1. When piping installation work you must be used the connector. Connecting pipe size Indoor Units Gas side Liquid side 12, 18 kBtu/h Ø12.7(1/2") Ø6.35(1/4") 24, 30, 36 kBtu/h Ø15.88(5/8") Ø6.35(1/4") 48 kBtu/h...
-
Page 24: Installation Of Decorative Panel
Installation of Decorative Panel Installation of Decorative Panel The decorative panel has its installation Before installing the decorative panel, direction. always remove the paper template. 1. Temporarily fix two decorative panel fixing screws (hexagon M5 screw) on the unit body. (Tighten by amount 10 mm in length.) The fixing screws (hexagon M5 screw) are included the decorative panel box. -
Page 25: Indoor Unit Drain Piping
Indoor Unit Drain Piping CAUTION: Install certainly the decorative panel. Cool air leakage causes sweating. ⇨ Water drops fall. Good example Bad example Air conditioner unit Air conditioner Cool air leakage unit (no good) Ceiling Ceiling board board Decorative Decorative panel panel Fit the insulator (this part) and be careful for cool air leakage... - Page 26 Indoor Unit Drain Piping Heat insulation 1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C). 2. Precautions in high humidity Fastening band circumstance: (accessory) This air conditioner has been tested according to the "KS Standard Conditions with Mist"...
- Page 27 Indoor Unit Drain Piping In cases where the Outdoor unit is Seal a small opening installed above the Indoor unit around the pipings perform the following. with gum type sealer. 1. Tape the piping and connecting cable from down to up. 2.
-
Page 28: Air Purging And Evacuation
Air Purging and Evacuation Air Purging and Evacuation Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. 1. Pressure in the system rises. 2. Operating current rises. 3. Cooling(or heating) efficiency drops. 4. Moisture in the refrigerant circuit may freeze and block capillary tubing. 5. - Page 29 Air Purging and Evacuation This completes air purging with a vacuum pump. Soap water method The air conditioner is now ready to test run. 1. Remove the caps from the 2-way and 3-way valves. Hexagonal 2. Remove the service-port cap from the 3-way valve. wrench 3.
-
Page 30: Test Running
Test Running Test Running 1. Check that all tubing and wiring have been properly connected. 2. Check that the gas and liquid side service valves are fully open. Prepare remote control Remove the battery cover by pulling it according to the arrow direction. Insert new batteries making sure that the (+) and (–) of battery are installed correctly. - Page 31 Test Running CAUTIO N: 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.
-
Page 32: Optional Operation
Optional Operation Optional Operation 1. Two Thermistor System (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. • Position 1: The room temperature is controlled by the thermistor of the main body. •... - Page 33 Optional Operation 2. Adjusting air volume to the height of ceiling (Cassette type) You can choose the RPM(or air volume) of indoor motor according to the height of ceiling to supply the comfortable atmosphere to consumers. Procedure 1. Choose the selectable position in the table after measuring the height of ceiling. Ceiling height Mode of slide switch Change of air volume...
- Page 34 Optional Operation 3. E.S.P.(External Static Pressure) Setting (Duct type) (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. ■ Without Zone System 1. Position V-H, F-H: • This position sets the maximum E.S.P as a default set. 2.
- Page 35 Optional Operation 4. How to Set E.S.P? Procedure of RPM change: Ex) External Static pressure is 4 mmAq for 24 kBtu/h. • To protect the unit, compressor is designed to be off during E.S.P. setting. Push the "On/Off" button. The unit will start. AUTO SWING OPERATION SET TEMP...
- Page 36 Optional Operation [Table. 1] Static Pressure(mmAq) Model Name Step CMM(CFM) Setting Value High 16.5(583) LMNC182BHA0 14.5(512) LMNH182BHA0 13(459) High 20(706) LMNC242BHA0 18(636 LMNH242BHA0 16(565) High 28(989) LMNC302BGA0 24(848) LMNH302BGA0 20(706) High 32(1 130) LMNC362BGA0 28(989) LMNH362BGA0 24(848) High 45(1 589) 1(43) LMNC482BRA0 40(1 412)
-
Page 37: Installation Guide At The Seaside
3) Select a well-drained place. 1. If you can’t meet above guide line in the seaside installation, please contact LG Electronics for the additional anticorrosion treatment. 2. Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water... - Page 38 Memo 38 Multi Type Air Conditioner...