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Installation Manual

Due to our policy of continuous product innovation, some specifications may change without notification.

INSTALL DECORATION PANEL

1-Way Cassette

Figure 33: Decoration Panel Installation

1-Way Decoration Panel Installation

1. Install two decoration panel attaching screws on the cassette chassis. Tighten about

3/8 inch.

2. Remove the air inlet grille from the decoration panel. (Remove the hook for the air

inlet grille cord.)

3. Hook the decoration panel key hole on the screws installed,

and slide the panel so that the screws reach

the key hole edge.

4. Tighten completely the two initially installed

screws and two additional screws.

5. Connect the louver motor connector and

display connector.

6. After tightening these screws, install the air

inlet grille (including the air filter)

Piping side

Decorative panel

fixing screws

(Hexagon M6 screw)

Decorative panel

Push

Inlet G rille

Inlet Grille

Key holes

Louver motor

Safety grille

Control box cover

Cover

Ratch pull

Filter

Attaching screws

Содержание ARNU053TRC4

Страница 1: ...dels ARNU243TPC4 ARNU283TPC4 ARNU363TNC4 ARNU423TMC4 ARNU483TMC4 1 Way Models ARNU073TUC4 ARNU093TUC4 ARNU123TUC4 ARNU183TTC4 ARNU243TTC4 4 Way 2 x 2 Models ARNU053TRC4 ARNU073TRC4 ARNU093TRC4 ARNU123TRC4 ARNU153TQC4 ARNU183TQC4 2 Way Models ARNU183TLC4 ARNU243TLC4 ...

Страница 2: ...ation For more technical materials such as submittals engineering databooks and catalogs visit www lghvac com For continual product development LG Electronics U S A Inc reserves the right to change specifications without notice LG Electronics U S A Inc This document as well as all reports illustrations data information and other materials are the property of LG Electronics U S A Inc PROPRIETARY DA...

Страница 3: ... General Installation Guidelines 27 Location Selection 27 Required Clearances 27 Inspection 28 Unpack and Inspect for Freight Damage 28 Installation 29 Install Cassette Chassis 29 Refrigerant Piping 31 Refrigerant Safety 33 Refrigerant Pipe Connections 34 Insulate Refrigerant Pipes 34 Wiring 35 4 Way Cassette Chassis 35 4 Way Cassette TR TQ Chassis 36 4 Way Cassette TP TN TM Chassis 38 2 Way Casse...

Страница 4: ...l injury or death Wear protective gloves when handling equipment Sharp edges may cause personal injury Dispose the packing materials safely Packing materials such as nails and other metal or wooden parts may cause puncture wounds or other injuries Tear apart and throw away plastic packaging bags so that children may not play with them and risk suffocation and death Do not install the unit in any l...

Страница 5: ...ications This equipment is designed to provide comfort cooling and heating There is risk of property damage Do not make refrigerant substitutions Use R410A only If a different refrigerant is used or air mixes with original refrigerant the unit will malfunction and be damaged Do not install the unit in a noise sensitive area When connecting refrigerant tubing remember to allow for pipe expansion Im...

Страница 6: ...lure to carefully read and follow all instructions in this manual can result in equipment malfunction property damage personal injury or death Ensure the unit is connected to a dedicated power source that provides adequate power If the power source capacity is inadequate or the electric work is not per formed properly it may result in fire electric shock physical injury or death Refer to local sta...

Страница 7: ...ated If the base collapses the unit could fall and cause property damage or product failure Do not allow water dirt or animals to enter the unit There is risk of unit failure WARNING Do not allow water dirt or animals to enter the unit There is risk of unit failure fire electric shock physical injury or death Avoid excessive cooling and periodically perform ventilation to the unit Inadequate venti...

Страница 8: ...ette Indoor Unit Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ...

Страница 9: ...national state and or local codes In the event of a conflict between any applicable code and the instructions in this manual comply with the applicable code Connecting cable power and control Pipes vapor line and liquid line with insulation 3 8 or 1 2 Threaded hanger rods 3 8 or 1 2 nuts flat washers and lock split washers Insulated drain hose Additional drain hose Level Screwdriver Electrical lin...

Страница 10: ...egistered trademark of LG Corp Unit Model Number Ceiling Cassette 4 Way 2 x 2 ARNU053TRC4 ARNU073TRC4 ARNU093TRC4 ARNU123TRC4 ARNU153TQC4 ARNU183TQC4 Ceiling Cassette 4 Way 3 x 3 ARNU243TPC4 ARNU283TPC4 ARNU363TNC4 ARNU423TMC4 ARNU483TMC4 Ceiling Cassette 2 Way ARNU183TLC4 ARNU243TLC4 Ceiling Cassette 1 Way ARNU073TUC4 ARNU093TUC4 ARNU123TUC4 ARNU183TTC4 ARNU243TTC4 Table 1 Multi V Cassette Indoor...

Страница 11: ...Ceiling Cassette 3 x3 TM 4 Way Ceiling Cassette 3 x3 TR 4 Way Ceiling Cassette 2 x2 TQ 4 Way Ceiling Cassette 2 x2 TL 2 Way Ceiling Cassette TU 1 Way Ceiling Cassette TT 1 Way Ceiling Cassette Electrical Ratings 3 208 230V 60Hz 1Phase Nominal Capacity Nominal cooling capacity in Btu h Type U Inverter Heat Pump Heat Recovery Family ARN Multi V Indoor Unit Refrigerant R410A 4 Feature C Plasma Filter...

Страница 12: ...otrope of R32 and R125 mixed at 50 50 so the ozone depletion potential ODP is 0 WARNING To prevent the refrigerant cylinder from exploding do not place it in direct sunlight Do not use any piping that has not been approved for use in high pressure refrigerant systems To prevent the piping from softening do not heat it more than necessary during installation Piping wall thickness must comply with t...

Страница 13: ...1 4 Flare 1 4 Flare 1 4 Flare 1 4 Flare 1 4 Flare Vapor Line in OD 1 2 Flare 1 2 Flare 1 2 Flare 1 2 Flare 1 2 Flare 1 2 Flare Condensate Line in ID 1 1 1 1 1 1 1 Power Input is rated at high speed 2 Take appropriate actions at the end of HVAC equipment life to recover recycle reclaim or destroy R410A refrigerant according to applicable regulations 40 CFR Part 82 Subpart F under section 608 of CAA...

Страница 14: ...lare 3 8 Flare 3 8 Flare 3 8 Flare Vapor Line in OD 5 8 Flare 5 8 Flare 5 8 Flare 5 8 Flare 5 8 Flare Condensate Line in ID 1 1 1 1 1 1 Power Input is rated at high speed 2 Take appropriate actions at the end of HVAC equipment life to recover recycle reclaim or destroy R410A refrigerant according to applicable regulations 40 CFR Part 82 Subpart F under section 608 of CAA 3 All communication cable ...

Страница 15: ...opriate actions at the end of HVAC equipment life to recover recycle reclaim or destroy R410A refrigerant according to applicable regulations 40 CFR Part 82 Subpart F under section 608 of CAA 3 All communication cable to be minimum 18 AWG 2 conductor stranded shielded and must comply with applicable local and national codes Ensure the communication cable is properly grounded at the master outdoor ...

Страница 16: ...are 3 8 Flare Vapor Line in OD 1 2 Flare 1 2 Flare 1 2 Flare 1 2 Flare 5 8 Flare Condensate Line in ID 1 1 1 1 1 1 Power Input is rated at high speed 2 Take appropriate actions at the end of HVAC equipment life to recover recycle reclaim or destroy R410A refrigerant according to applicable regulations 40 CFR Part 82 Subpart F under section 608 of CAA 3 All communication cable to be minimum 18 AWG ...

Страница 17: ...r policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions TR Chassis ...

Страница 18: ...Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions TQ Chassis ...

Страница 19: ...r policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions TP Chassis ...

Страница 20: ...Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions TN Chassis ...

Страница 21: ...r policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions TM Chassis ...

Страница 22: ...Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions TL Chassis ...

Страница 23: ...ronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions TU Chassis 43 5 16 19 11 16 1 3 8 34 11 16 Air outlet Hole 6 5 8 4 3 16 8 1 8 10 11 16 3 13 16 5 1 4 2 1 4 17 13 16 1 1 16 12 5 8 39 13 16 3 7 16 33 11 16 Unit inches Note All measurements have a tolerance of 1 4 in ...

Страница 24: ... LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions TT Chassis 13 16 2 9 16 7 1 16 9 3 4 2 1 4 3 1 2 3 13 16 6 7 8 5 3 16 1 1 4 17 3 4 55 15 16 19 11 16 1 5 16 47 1 4 Air Outlet Hole 2 9 16 52 7 16 46 7 16 Unit inches Note All measurements have a tolerance of 1 4 in ...

Страница 25: ...4 0 38 0 30 70 70 ARNU183TLC4 0 47 0 37 70 70 ARNU243TLC4 0 47 0 37 70 70 ARNU053TRC4 0 25 0 20 30 30 ARNU073TRC4 0 25 0 20 30 30 ARNU093TRC4 0 25 0 20 30 30 ARNU123TRC4 0 25 0 20 30 30 ARNU153TQC4 0 25 0 20 30 30 ARNU183TQC4 0 25 0 20 30 30 ARNU243TPC4 0 19 0 15 33 33 ARNU283TPC4 0 19 0 15 33 33 ARNU363TNC4 0 71 0 56 144 144 ARNU423TMC4 0 71 0 56 144 144 ARNU483TMC4 0 71 0 56 144 144 MCA Minimum ...

Страница 26: ...ansion Valve Heat Exchanger Turbo Fan Th3 Th1 Th2 EEV Ceiling Cassette lndoor Unit 4 Way Strainer Strainer Refrigerant Pipes to Outdoor Unit Flare Nut Flare Nut Liquid Line Vapor Line Figure 4 Refrigerant Piping Diagram TR TQ TP TN and TM Chassis Figure 5 Refrigerant Piping Diagram TL TT and TU Chassis Heating Cooling Th1 Thermistor Return Air Th2 Thermistor Pipe In Th3 Thermistor Pipe Out EEV Ele...

Страница 27: ...rn to determine the size of the ceiling opening and the hanging bolt locations required by the unit Do not install the unit where it will be subjected to direct thermal radiation from other heat sources Do not install the unit in an area where combustible gas may generate flow stagnate or leak There is the possibility of fire Do not install the unit in a location where acidic solution and spray su...

Страница 28: ...e unit received is the correct unit Verify the unit capacity type and voltage Refer to the Nomenclature chart on Cassette Indoor Units Nomenclature on page 11 1 Before opening the shipping container verify you have the correct unit as described in the Note above 2 Place the box on a solid surface right side up 3 Cut the white reinforced nylon straps 4 Open the top of the box and fold back all four...

Страница 29: ...he ceiling opening and the threaded rod hangar locations required by the unit 1 Determine the installation location Use the applicable chassis ceil ing pattern and open the chassis installation space Figure 8 2 Use the applicable chassis threaded rod hangar pattern Figure 9 through Figure 12 to mark the four hangar locations 3 Securely install the four field provided threaded rod hangars 4 Refer t...

Страница 30: ... Hanging bolt 2 1 16 2 1 16 Set screw 4 for paper pattern Paper pattern Ceiling board Ceiling Distance of bolt from bracket 1 1 2 Open ceiling board along outer edge of paper pattern Flat washer provided Threaded Rod Hangar W3 8 or M10 Nut W3 8 or M10 Nut W3 8 or M10 Lock washer W3 8 or M10 Ceiling Cassette Chassis Threaded rod hangar nuts and lock washers are field provided Ceiling board Distance...

Страница 31: ...aterials in the pipe 2B Slide the flare nut onto the copper tube 90 Slanted Uneven Rough Pipe Reamer Point down Flare nut Copper tube Bar Copper pipe Clamp handle Red arrow Cone Bar Slanted Smooth Uneven Thickness 1 2A 2B 3 4 4 Carefully inspect the flared pipe end Compare the geometry with the figure to the right If the flare is defective cut it off and re do procedure If flare looks good blow cl...

Страница 32: ...ng No leaks should occur Possible Problems Significant hydrolysis of refrigerant oil Refrigerant oil degradation Poor insulation of the compressor System does not operate properly EEVs capillary tubes are clogged Refrigerant oil degradation Poor insulation of the compressor System does not operate properly EEVs and capillary tubes become clogged Refrigerant gas leaks shortages Refrigerant oil degr...

Страница 33: ...ir bubbles Do not block outlet side When pressure inside pipe is above atmospheric pressure pinhole leaks can occur Refrigerant Pipe Welding Point Regulator Nitrogen gas 3 0 psi or less Nitrogen Gas Tank Brazing Note It is imperative to keep the piping system free of contaminants and debris such as copper burrs slag or carbon dust during installation 1 All joints are brazed in the field Multi V IV...

Страница 34: ...ge in Pipe Direction Note Do not use any other type of oil including traditional POE refrigeration oil as a lubricant Failure to follow this procedure may lead to restrictions in the refrigeration components Do not over tighten flare nuts Excessive tightening will cause fittings to crack Insulate Refrigerant Pipes Sufficiently insulate all cold surfaces to prevent moisture forming All pipes must b...

Страница 35: ... this cable connects to a pigtail cable from the CN REMO connector on the control board and on some units it connects directly to the CN REMO connector 6 Refer to the cable connection diagram in Figure 21 and connect any additional cables required for your installation Figure 19 Typical 4 Way Cassette Cable Routing WIRING IDU Terminal Block 1 L1 2 L2 3 A 4 B TR TQ Chassis TM TN TP Chassis IDU to O...

Страница 36: ... continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING 4 Way Cassette TR TQ Chassis Figure 22 TR TQ Chassis Wiring Diagram ...

Страница 37: ... controller Remote control line CN CC Dry Contact Dry Contact line CN AIRC Air Clean Air cleaner control Table 4 TR TQ Chassis Wiring Diagram 4 Way Cassette TR TQ Chassis Table 5 TR TQ Chassis DIP Switch Settings For Multi V systems DIP switches 1 2 6 and 7 must be set to OFF These switches are used for other models Switch Function OFF ON Description 3 Group Control Master Slave Selects master or ...

Страница 38: ...ntinuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 4 Way Cassette TP TN TM Chassis Figure 23 TP TN TM Chassis Wiring Diagram WIRING ...

Страница 39: ...ir thermistor CN REMO Remote controller Remote control line CN CC Dry Contact Dry Contact line CN AIRC Air Clean Air cleaner control Table 6 TP TN TM Chassis Wiring Diagram Connectors Table 7 TP TN TM Chassis DIP Switch Settings For Multi V systems DIP switches 1 2 6 and 7 must be set to OFF These switches are used for other models Switch Function OFF ON Description 3 Group Control Master Slave Se...

Страница 40: ...et all applicable codes Polarity matters on this IDU to ODU communications bus Be sure to connect A terminals to A terminals and B terminals to B terminals Ensure this com munication cable is properly grounded at the master outdoor unit only Do not ground this IDU to ODU communications cable at any other point 5 If the unit has a wall mounted zone controller connect the con troller s cable to the ...

Страница 41: ...nuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING 2 Way Cassette TL Chassis Figure 25 TL Chassis Wiring Diagram ...

Страница 42: ... Room air thermistor CN REMO Remote controller Remote control line CN CC Dry Contact Dry Contact line CN AIRC Air Clean Air cleaner control Table 8 TL Chassis Wiring Diagram Connectors Table 9 TL Chassis DIP Switch Settings For Multi V systems DIP switches 1 2 6 and 7 must be set to OFF These switches are used for other models Switch Function OFF ON Description 3 Group Control Master Slave Selects...

Страница 43: ...ielded and meet all applicable codes Polarity matters on this IDU to ODU communica tions bus Be sure to connect A terminals to A terminals and B terminals to B termi nals Ensure the communication cable is properly grounded at the master outdoor unit only Do not ground this IDU to ODU communications cable at any other point 5 If the unit has a wall mounted zone controller connect the con troller s ...

Страница 44: ...y of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING 1 Way TT TU Chassis Figure 27 TT TU Chassis Wiring Diagram ...

Страница 45: ...hermistor CN REMO Remote controller Remote control line CN CC Dry Contact Dry Contact line CN AIRC Air Clean Air cleaner control For Multi V systems DIP switches 1 2 6 and 7 must be set to OFF These switches are used for other models Table 10 TT TU Chassis Wiring Diagram Connectors Table 11 TT TU Chassis DIP Switch Settings Switch Function OFF ON Description 3 Group Control Master Slave Selects ma...

Страница 46: ...ent WIRING Wall Mounted Controller Installation Since the room temperature sensor is inside the remote controller the remote controller should be installed in a place away from direct sun light high humidity and direct supply of hot or cold air to maintain proper space temperature Install the remote controller about 5 ft above the floor in an area with good air circulation and an average temperatu...

Страница 47: ... chassis No air gap Ceiling board Correct Installation Incorrect Installation Figure 29 Decoration Panel Installation Figure 30 Swing Inlet Grill Downward Figure 31 Properly Seating Decoration Panel against Chassis INSTALL DECORATION PANEL Decoration Panel Installation 1 Install two decoration panel attaching screws on the cassette chassis Tighten about 3 8 inch 2 Remove the air inlet grille from ...

Страница 48: ...about 3 8 inch 2 Remove the air inlet grille from the decoration panel Remove the hook for the air inlet grille cord 3 Hook the decoration panel key hole on the screws in stalled and slide the panel so that the screws reach the key hole edge 4 Tighten completely the two initially installed screws and two additional screws 5 Connect the louver motor connector and display connector 6 After tightenin...

Страница 49: ...e the air inlet grille from the decoration panel Remove the hook for the air inlet grille cord 3 Hook the decoration panel key hole on the screws installed and slide the panel so that the screws reach the key hole edge 4 Tighten completely the two initially installed screws and two additional screws 5 Connect the louver motor connector and display connector 6 After tightening these screws install ...

Страница 50: ...nsation Drain Pipe Drain piping must slope downward or flow may reverse back to the unit During drain piping connection be careful not to exert extra force on the drain port on the indoor unit The outside diameter of the drain connection on the indoor unit is 1 1 4 inch Piping material Polyvinyl chloride pipe inner diameter is 1 inch Be sure to install insulation on the drain piping Insulation mat...

Страница 51: ... can control all indoor units in a group by controlling the master unit of the group Slave indoor units can not be individually controlled by the Central controller DIP Switch Settings Refer to Figure 38 Set switch 3 of the indoor unit s DIP switch to Off if the unit is Master Set switch 3 to On if the unit is Slave For use with Multi V systems ceiling cassette DIP switches 1 2 6 and 7 MUST be set...

Страница 52: ...D lines between slave indoor units Do not connect 12V line between slave indoor units Master Master GND Signal 12V AC Smart ACP Bacnet ACP LON Optional Other Building Mgmt System Optional LGMV LGAP Network System Dry Contact Optional Figure 40 Group Control Method 2 Group Control Figure 39 Figure 40 and Figure 41 show examples of typical control configurations Figure 39 shows one wired remote cont...

Страница 53: ...isplay Error Message AC Smart ACP Bacnet ACP LON Optional Other Building Mgmt System Optional LGMV LGAP Network System Connect Signal and GND lines to slave indoor units Do not connect 12V line to slave indoor units GND Signal 12V Dry Contact Optional Figure 41 Group Control Method 3 FAU FAU Standard Standard FAU Fresh Air Intake Unit Standard Standard Indoor Unit ZC Zone Controller Standard Stand...

Страница 54: ...wood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp CONTROLS SETUP Remote Sensor Display Error Message Master Master AC Smart ACP Bacnet ACP LON Optional Other Building Mgmt System Optional LGMV LGAP Network System GND Signal 12V Dry Contact Optional Figure 43 Remote Control Remote Control Figure 43 shows an example of a remote control configuration ...

Страница 55: ...er as the connected pipe option Two shutoff valves were installed one 1 high pressure liquid one 1 low pressure vapor option Shutoff valves installed with Schrader port between the indoor unit and the ball of the valve option Condensate System N A Not Complete Complete Condensate pipe is properly sized and supported to keep lateral pressure off unit connections Condensate pipe horizontal segments ...

Страница 56: ...ided zone controller stranded shielded white jacket cable was used between the zone controller s and indoor unit s Zone controller cable has not been cut spliced or tied together with wire nuts Factory plugs are present Cable is securely plugged into the socket on the zone controller or the three screw terminals controller model specific Yellow to Y Red to R and Black to B Zone controller field se...

Страница 57: ...f LG Corp Who to call for assistance Freight Damage and Unit Replacements Your LG Manufacturer Representative Missing Parts Your LG Manufacturer Representative Freight Damage and Unit Replacements Your LG Manufacturer Representative Received Wrong Indoor Unit Model Your LG Manufacturer Representative Installation Startup and Commissioning Technical Assistance 1 888 865 3026 For warranty informatio...

Страница 58: ...ommercial Air Conditioning Division 11405 Old Roswell Road Alpharetta Georgia 30009 www lghvac com LG Customer Information Center Commercial Products 1 888 865 3026 USA Follow the prompts for commercial A C products and parts 20001747 ISO 9001 2008 LG ELECTRONICS INC ...

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