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Installation Manual

31

ENGLISH

Flaring Work and Connection of Piping

Align the center of the piping and sufficiently
tighten the flare nut by hand.

When tightening side piping, tighten below.
1st, tighten gas side piping of A
2nd, tighten liquid side piping of A
3rd, tighten gas side piping of B
4th, tighten liquid side piping of B
5th, tighten gas side piping of C
6th, tighten liquid side piping of C
7th, tighten gas side piping of D
8th, tighten liquid side piping of D

Finally, tighten the flare nut with torque wrench
until the wrench clicks.

• When tightening the flare nut with torque

wrench ensure the direction for tightening
follows the arrow on the wrench.

Liquid side
piping

Outdoor unit

Gas side
piping

Torque
wrench

A

B

C

D

Outside diameter

Torque

mm

inch

kg.m

Ø6.35

1/4

1.8

Ø9.52

3/8

4.2

Ø12.7

1/2

5.5

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Содержание LMNC182BHA0

Страница 1: ...tion 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 ENGLISH ESPAÑOL PORTUGUÊS ...

Страница 2: ...d Long Pipe Setting 34 35 Air Purging and Evacuation 36 37 Test Running 38 Optional Operation Duct Types 39 42 Combination indoor units 43 Installation guide at the seaside 44 o Level gauge o Screw driver o Electric drill o Hole core drill ø50mm o Horizontal meter o Flaring tool set o Specified torque wrenches 1 8kg m 4 2kg m 5 5kg m 6 6kg m different depending on model No o Spanner Half union o A...

Страница 3: ...arts Provided Outdoor Unit Wall Mounted Type Installation plate Type B screws 2EA Type A screw 8 EA Holder Remote Control more than 700 more than 300 more than 300 Air Outlet Air Intake side rear Connection pipe Drain hose Connecting wire Control cover more than 300 unit mm ...

Страница 4: ...nstruction Safety Precautions WARNING n Installation Install the panel and the cover of control box securely There is risk of fire or electric shock Always install a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock Use the correctly rated breaker or fuse There is risk of fire or electric shock Do not use a defective or underrated circuit breaker Use th...

Страница 5: ... damage to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furniture Do not store or use flammabl...

Страница 6: ...void vibration or water leakage Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors Don t let people to lift and transport the product Use fork lift Avoid personal injury Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion ...

Страница 7: ... not have any heat or steam near the unit Select a place where there are no obstacles in front of the unit Make sure that condensation drainage can be conveniently routed away Do not install near a doorway Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles Use a stud finder to locate studs to prevent unnecessary damage to the wall 2 Outdoor unit If an awning is bu...

Страница 8: ...owance length is on the basis of reliability Oil trap should be installed every 5 7 meters It does not matter which unit is higher 1 1 The maximun allowable level piping length and Refrigerant Charge 15m 7 5m A B C D Outdoor Unit Indoor Unit Standard Length m Max piping m A B C D A B C D L4UH602FA2 L4UC602FA2 7 5 30 30 30 30 80 A B C D 30 Model Outdoor Unit Charge g m Max total piping length m ove...

Страница 9: ...nd the drain hose in the direction of rear left or right Connecting pipe Connecting cable Tape Drain hose Connecting pipe Connecting cable Tape Drain hose CAUTION If the drain hose is routed inside the room insulate the hose with an insulation material so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recommended Installation of In...

Страница 10: ...t install the drain pipe Wrap the insulation material around the connecting portion 1 Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there is no gap 2 Wrap the area which accommodates the rear piping housing section with vinyl tape Recommended Insulation material Meterial FOAM PE Thickness 10mm Density less th...

Страница 11: ...ousing section Good case Press on the upper side of clamp and unfold the tubing to downward slowly Bad case Following bending type from left to right could cause problem of pipe damage Wrap with vinyl tape Drain hose Pipe Vinyl tape wide CAUTION Installation Information For right piping For right piping follow the instruction below Installation of Indoor Outdoor Unit ...

Страница 12: ...ant to use caution concerning the location of the installation plate routing of the wiring to power outlets is through the walls typically Drilling the hole through the wall for piping connections must be done safely n How to fix installation plate Drill the piping hole with a ø70mm hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor ...

Страница 13: ...de as a figure for easy water drainage A place where the unit will be leveled and that can support the weight of the unit A place where the unit can withstand its vibration A place where service can be easily performed CASE 1 POSITION OF SUSPENSION BOLT CASE 2 POSITION OF CONSOLE BOLT Unit mm Drainage hole A B C 1 3 mm D G H I E F M10 SP washer M10 washer M10 Nut X 8 X 4 Local supply X 4 M10 Nut M...

Страница 14: ... spring washers 1 Set anchor Old building New building 2 Plate washer 3 Spring washer 4 Nut 5 Suspension bolts Local supply Set anchor Plate washer M10 Spring washer M10 Nut W3 8 or M10 Suspension bolt W3 8 or M10 CAUTION Tighten the nut and bolt to prevent unit falling CAUTION 1 Install declination of the indoor unit is very important for the drain of the duct type air conditioner 2 Minimum thick...

Страница 15: ...ny upward flow or reverse flow in any part 5mm or thicker formed thermal insulator shall always be provided for the drain pipe Lay the drain hose with a downward inclination so water will drain out Install the P Trap or U Trap to prevent a water leakage caused by the blocking of intake air filter Applied U Trap Dimension CORRECT INCORRECT Upward routing not allowed Caution for gradient of unit and...

Страница 16: ...ring Is the wiring connection correct Lock bolt Is the lock bolt of compressor loosened THERMAL INSULATION TEST AND CHECK Make sure that there is no clearance here Overlap with thermal insulator for piping Thermal insulator for refrigerant pipe Local supply Thermal insulator for piping Local supply Hose clip for thermal insulator Local supply Union for liquid pipe Refrigerant pipe and thermal insu...

Страница 17: ...remote controller side Main board CN REMO The maximum length of the cord is 100m If the length of the cord exceeds 50m use a wire size greater than 0 5mm2 Remote controller CN REMO Remote control box body Lever carefully the box open using a screw driver etc Front case The lower part Face of wall Upper notch Upper flange Under plate Remote control cord Remote control unit Tapping screw Local suppl...

Страница 18: ... JET AUTO AUTO SWING OPERATION FAN SPEED Program set SUB FUNCTION SET TEMP Room Temp HI MED LO Heater Defrost Filter Preheat Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 Operat ion unit ZONE 1 2 3 4 Humidi fy JET AUTO AUTO SWIN G OPER ATION FAN SPEE D Program set SUB FUNCT ION SET TEMP Room Temp HI MED LO Heater Defrost Filter Prehea t Out door Time Time r On Set no T...

Страница 19: ...nstall the unit using a level gauge During the installation care should be taken not to damage electric wires The dimensions of the paper model for installing are the same as those of the ceiling opening dimensions Ceiling board Level gauge Ceiling Unit mm 744 Unit size 744 Unit size 658 Hanging bolt 66 66 790 Ceiling opening 790 Ceiling opening 572 Hanging bolt 109 109 Unit mm 570 Unit size 570 U...

Страница 20: ...stored or vented 4 Avoid places where sulfurous acid gas or corrosive gas is generated 5 Avoid places near high frequency generators TQ TR 31 34mm TP TN TM 15mm Thoroughly study the following installation locations 1 In such places as restaurants and kitchens considerable amount of oil steam and flour adhere to the turbo fan the fin of the heat exchanger and the drain pump resulting in heat exchan...

Страница 21: ...ller Select places that are not splashed with water Select control position after receiving customer approval The room temperature sensor is built in the indoor unit This remote controller equipped with liquid crystal display If this position is higher or lower display is difficult to see The standard height is 1 2 1 5m high Routing of the remote controller cord Keep the remote controller cord awa...

Страница 22: ... part of the case in the direction to install before the installation 4 After locating the wired remote controller installation board at the desired location screw the unit firmly When there is a buried box install the wired remote controller board to fit the buried box Use the screw provided 5 After fixing the top part of the remote controller to the installation board as shown in beside picture ...

Страница 23: ...ong time 6 Use the connecting cable to connect the indoor unit and the remote controller 7 When the distance between the wired remote controller and the indoor unit is 10m and above use the extension cable When installing the wired remote controller do not bury it in the wall It can cause damage in the temperature sensor Do not install the cable to be 50m or above It can cause communication error ...

Страница 24: ...nstallation of Indoor Outdoor Unit n Wiring Connection Open the control box cover and connect the Remote controller cord and Indoor power wires Remote Controller Cable Connecting Cable L N Indoor unit Outdoor unit 3 L N 3 ...

Страница 25: ...e from front panel 2 Remove the Corner covers of the panel 3 Fit the panel on the unit by inserting hooks as shown in picture 4 Insert two screws on diagonal corners of panel Do not tighten the bolts completely The fixing screws are included in the indoor unit box Check the alignment of panel with the ceiling Height can be adjusted using hanging bolts as shown in picture Insert the other two screw...

Страница 26: ...or unit PCB The position marking on PCB is as Display connector CN DISP Vane control connector CN VANE 1 2 8 Close the cover for control box 9 Fit the link on the panel as shown in picture The link is included in the front panel unit box 10 Attach the other side of link on the filter guide of inlet grille Install the air inlet grille and filter on the panel Link Link Filter guide Screw CN VANE 1 2...

Страница 27: ...er to the flexible drain hose and check the piping for leakage Be sure to check the drain pump for normal operating and noise when electrical wiring is complete When the test is complete connect the flexible drain hose to the drain port on the indoor unit Air conditioner unit Ceiling board Decorative panel Decorative panel Fit the insulator this part and be careful for cool air leakage Good exampl...

Страница 28: ...add heat insulation material according to the following procedure Heat insulation material to be prepared Adiabatic EPDM or NBR with thickness 10 to 20mm Stick EPDM or NBR on all air conditioners that are located in ceiling atmosphere In addition to the normal heat insulation thickness more than 10mm for refrigerant piping gas piping thick piping and drain piping add further 10mm to 30mm thickness...

Страница 29: ...section of pipe tube Put the end of the copper tube pipe to downward direction as you remove burrs in order to avoid to let burrs drop in the tubing 3 Putting nut on Remove flare nuts attached to indoor and outdoor units than put them on pipe tube having completed burr removal Not possible to put them on after flaring work 4 Flaring work Carry out flaring work using dedicated flaring tool for R 22...

Страница 30: ...es 3 Connect pipe to the service valve ball valve or short tube only 48 kBtu h which is located 4 After completing the piping connection be sure to check if there is gas leakage in indoor and outdoor connection Vacuum drying After completing the piping connection execute vacuum drying for the connecting piping and the indoor unit The vacuum drying must be carried out using the service ports of bot...

Страница 31: ...n liquid side piping of B 5th tighten gas side piping of C 6th tighten liquid side piping of C 7th tighten gas side piping of D 8th tighten liquid side piping of D Finally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Liquid side piping Outdoor unit Gas side pipin...

Страница 32: ...to the Indoor unit CAUTION The circuit diagram is not subject to change without notice Be sure to connect wires according to the wiring diagram Connect the wires firmly so that not to be pulled out easily Connect the wires according to color codes by referring the wiring diagram CAUTION Provide a circuit breaker between power source and the unit as shown below CAUTION The power cord connected to t...

Страница 33: ... tightening pull the wires lightly to confirm that they do not move If they are loose the unit the unit will not operate normally or it can cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 6 Confirm that the cable thickne...

Страница 34: ... water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit Drain piping 1 The drain hose should point downward for easy drain flow 2 Do not make drain piping Drain pan Drain hose Leakage checking Connecting area drain hose Leakage checking Downward slope Do not raise Accumulated drain water Tip of drain hose dipped in water Air Waving Water leakage Water...

Страница 35: ...ollowing 1 Tape the piping drain hose and connecting cable from down to up 2 Secure the tapped piping along the exterior wall using saddle or equivalent In cases where the Outdoor unit is installed above the Indoor unit perform the following 1 Tape the piping and connecting cable from down to up 2 Secure the taped piping along the exterior wall Form a trap to prevent water entering the room 3 Fix ...

Страница 36: ...and dry nitrogen gas cylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for leakage test If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 427 P S I G with dry nitrogen gas and close the cylinder valve when the gauge reading reached 427 P S I G Next test for...

Страница 37: ...en the desired vacuum is reached close the Lo knob of the manifold valve and stop the vacuum pump Finishing the job 1 With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve 2 Turn the valve stem of gas side valve counter clockwise to fully open the valve 3 Loosen the charge hose connected to the gas side service port slightly to release the p...

Страница 38: ...heck the system refrigerant charge 1 Measure the pressure of the gas side service valve 2 Measure the temperature of the intake and discharge of air 3 The intake temperature the discharge temperature 8 C 4 For reference the gas side pressure of optimum condition is as below Cooling If the actual pressure are higher than shown the system is most likely over charged and charge should be removed If t...

Страница 39: ... YL SIGNAL BR GND Connecting Cable Local Supply Connector Connector YL SIGNAL BR GND YL SIGNAL BR GND YL SIGNAL BR GND Remote Controller PCB Single Group Slide Switch2 Using the supplied Wired Remote Controller wire them like above Move slide switch 2 to Group position Ensure that the color of wire Open the rear cover of Remote Controller to set up the mode Selectable options are three as follows ...

Страница 40: ...Fan speed doesn t vary according to the opening Closing of dampers 3 Position V L Minimum E S P setting Fan speed is varied according to the state of dampers by micom Maximum 18k 24k 8mmAq Minimum All 0mmAq Move the slide switch to set position Close the rear cover and check if it works normally CAUTION Select the position after checking duct work and E S P of the unit Maunfactured in the position...

Страница 41: ... Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 FAN SPEED HI 2 Time SUB FUNCTION SET TEMP OPERATION AUTO SWING Preheat ZONE Operation unit Program set Room Temp MED LO AUTO JET Heater Defrost Filter Humidify Out door Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 3 4 FAN SPEED HI 1 Timer 1 2 3 5 4 Timer Push the On Off button The unit will start Push the Timer and Wind b...

Страница 42: ... to the fluctuation of voltage air flow rate varies NOTICE Table 1 Static Pressure mmAq Setting Value Model Name Step CMM CFM High 16 5 583 185 200 215 120 145 165 175 190 200 115 140 160 165 180 195 115 140 155 155 175 185 100 130 155 140 160 175 1 120 145 LMNC182BHA0 LMNH182BHA0 LMNC242BHA0 LMNH242BHA0 Med 14 5 512 Low 13 459 High 20 706 Med 18 636 Low 16 565 0 2 4 6 8 10 ...

Страница 43: ...index of indoor units is the sum of capacity index of each units and should be within the capacity index of the outdoor unit 1 The total capacity index of indoor units is the sum of capacity index of each units and should be within the maximum capacity index of the outdoor unit NOTICE L4UC602FA2 L4UH602FA2 Up to 8 ...

Страница 44: ...ne 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 Selecting the location Outdoor Unit 1 If the outdoor unit is to be installed close to the seaside direct exposure to the sea wind should be avoided Install the outdoor unit on the opp...

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