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Refrigerant Piping Connections

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.

REFRIGERANT PIPING CONNECTIONS

Outdoor Unit Connections

Outdoor Unit Connections

1. Remove the piping cover or piping / control box cover (configuration depends on outdoor unit model) from the unit by loosening the fas-

tening screws.

2.  Align the center of the refrigerant piping and corresponding connection as shown.
3.  Refer to the figures below for liquid and gas (vapor) piping attachments onto the outdoor unit.
4.  Place a couple of drops of PVE refrigerant oil on outside of the flare before assembling.

Do not add any contaminants. Tighten the

flare nut initially by hand.

5. Finish tightening the flare nut with a torque wrench until the wrench clicks. Follow torque guidelines in the table below. See figures for

correct connection points.

Piping / Control

Box Cover

LSU090-120HSV5

Gas (Vapor) Piping

(Bigger Diameter)

Liquid Piping

(Smaller Diameter)

Torque Wrench

LSU090-120HSV5

Piping

Cover

Control

Box Cover

Terminal Block

LSU180HSV5

Torque Wrench

Liquid Piping

(Smaller Diameter)

Gas (Vapor) Piping

(Bigger Diameter)

LSU180HSV5

Figure 36: LSU090-120HSV5 Piping / Control

Box Cover Removal.

Figure 37: LSU180HSV5 Piping Cover and

Control Box Cover Removal.

Pipe Size

(in. O.D.)

Outside

Diameter (mm)

Torque

(ft-lbs.)

1/4

6.35

13.0 - 18.0

3/8

9.52

24.6 - 30.4

1/2

12.7

39.8 - 47.7

5/8

15.88

45.4 - 59.3

3/4

19.05

71.5 - 87.5

Table 16: Torque Wrench Tightening.

Figure 38: LSU090-120HSV5 Piping

Connections.

Figure 39: LSU180HSV5 Piping Connections. Figure 40: Pipe Attachment.

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Содержание ART COOL LA090HSV5

Страница 1: ...SINGLE ZONE ART COOLTM MIRROR WALL MOUNT INSTALLATION MANUAL Models LA090HSV5 LA120HSV5 LA180HSV5 LA240HSV3 ...

Страница 2: ...cautions begins on page 3 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 ...

Страница 3: ...y enter the unit causing fire electric shock and physical injury or death Always check for system refrigerant leaks after the unit has been installed or serviced Exposure to high concentration levels of refrigerant gas may lead to illness or death Wear protective gloves when handling equipment Sharp edges may cause personal injury Dispose the packing materials safely Packing materials such as nail...

Страница 4: ...opriate actions at the end of HVAC equipment life to recover recycle reclaim or destroy R410A refrigerant according to applicable U S Environmental Protection Agency EPA rules Periodically check that the outdoor frame is not damaged There is a risk of equipment damage Install the unit in a safe location where nobody can step on or fall onto it Do not install the unit on a defective stand There is ...

Страница 5: ...an industry qualified experienced certified electrician familiar with the U S National Electric Code NEC who is equipped with the proper tools and test instruments Failure to carefully read and follow all instructions in this manual can result in equipment malfunction property damage personal injury or death All electric work must be performed by a licensed electrician and conform to local buildin...

Страница 6: ...ical injury or death Do not operate the disconnect switch with wet hands There is risk of fire electric shock physical injury or death If gas leaks out ventilate the area before operating the unit If the unit is mounted in an enclosed low lying or poorly ventilated area and the system develops a refrigerant leak it may cause fire electric shock explosion physical injury or death To avoid physical ...

Страница 7: ...gineering 28 30 Flaring and Brazing Procedures 31 32 Refrigerant Piping Connections 33 44 Installation Overview 33 Special Applications 34 Outdoor Unit Connections 35 Indoor Unit Connections 36 39 Outdoor Unit Drain Piping 40 Indoor Unit Drain Hose 40 42 Bundling 42 Insulation 43 44 Electrical System Installation 45 57 Safety Guidelines 45 Connections and Specifications 45 50 Controller Options 51...

Страница 8: ...m Type Style SV High Efficiency Inverter VP Gallery YV Premier EV Mega V Standard Inverter T Thermostat Compatible LV Extended Piping Capacity Mbh Frame Type A Art Cool S Standard C Four Way Ceiling Cassette D Ceiling Concealed Duct Low Static H Ceiling Concealed Duct High Static V Vertical Horizontal Air Handling L LG 9 9 12 12 18 18 24 24 36 36 42 42 48 48 L SV 5 N N Indoor Unit U Outdoor Unit N...

Страница 9: ... hose Additional drain hose Level Screwdriver Electrical lineman pliers Electric drill Hole saw Drill Flaring tool set Tubing cutter Tube pipe reamer Torque wrenches Allen wrench Gas leak detector Thermometer Measuring Tape Multimeter Ammeter Required Tools field provided Required Parts field provided Included Parts Part Quantity Image Installation Plate One 1 Type A Screws Five 5 Type B Screws M4...

Страница 10: ... 625 1 023 12 000 13 785 3 070 18 000 29 515 3 070 22 000 30 030 Cooling Power Input1 kW 0 20 0 62 0 87 0 20 0 96 1 35 0 30 1 43 2 00 2 04 Heating Capacity Min Rated Max Btu h 1 023 10 900 17 061 1 023 13 600 22 178 3 070 21 600 38 898 3 070 27 600 38 898 Heating Power Input1 kW 0 20 0 71 1 89 0 20 1 04 1 97 0 66 1 73 3 98 2 67 COP 4 50 3 83 3 66 3 03 Maximum Heating Capacity Btu h Outdoor 17 F WB...

Страница 11: ...r Fan Motor Indoor Fan Motor Cooling Heat ing W FLA W FLA LAN090HSV5 LSU090HSV5 60 208 230 187 253 10 0 15 0 1 7 0 7 0 43 0 4 30 0 4 LAN120HSV5 LSU120HSV5 10 0 15 0 1 7 0 7 0 43 0 4 30 0 4 LAN180HSV5 LSU180HSV5 13 0 20 0 1 9 6 9 6 124 0 25 70 0 4 LAN240HSV3 LAU240HSV3 19 0 25 0 1 14 6 14 6 124 0 25 30 0 4 Voltage tolerance is 10 Maximum allowable voltage unbalance is 2 MCA Minimum Circuit Ampacity...

Страница 12: ...mode Avoid placing the outdoor unit in a low lying area where water could accumulate If the outdoor unit is installed in a highly humid environment near an ocean lake etc ensure that the site is well ventilated and has a lot of natural light Example Install on a rooftop Dont s Where it will be subjected to direct thermal radiation from other heat sources or an area that would expose the outdoor un...

Страница 13: ...l and insulate any drain hoses to prevent the hose from freez ing cracking leaking and causing unsafe conditions from frozen condensate Tie Downs and Lightning Protection Tie Downs The strength of the roof must be checked before installing the outdoor units If the installation site is prone to high winds or earthquakes when installing on the wall or roof securely anchor the mounting base using a f...

Страница 14: ...must be more than 150 of the outdoor unit s height There must be 2 to 3 1 2 inches of clearance between the outdoor unit and the windbreaker for purposes of air flow Additional anti corrosion treatment may need to be applied to the out door unit at oceanside locations Ocean winds may cause corrosion particularly on the condenser and evaporator fins which in turn could cause product malfunction or ...

Страница 15: ...consider service inlet and outlet and minimum allowable space requirements as illustrated in the diagrams below Specific clearance requirements in the diagram below are for single fan outdoor units Figure below shows the overall minimum clearances that must be observed for safe operation and adequate airflow around the outdoor unit When placing the outdoor unit under an overhang awning sunroof or ...

Страница 16: ...to transport the outdoor unit the forklift arms must pass through the openings at the bottom If a crane is to suspend the outdoor unit it is recommended that two 2 ropes at least twenty three 23 feet in length be used Pass the ropes under the unit Pass the rope through the two 2 forklift slots each at the front and rear of the outdoor unit To prevent damage to the outdoor unit always lift the unit...

Страница 17: ...am support Firmly attach the corners otherwise the support will bend 3 Use a hexagon nut 4 Use anti vibration material 5 Include enough space around the concrete foundation for con densate drainage 6 Seal all wiring and piping access holes to prevent insects from entering the unit Figure 6 Example of Using an Insert for a Hole in a Reinforced Concrete Beam Outdoor Unit Platform Dimensional Require...

Страница 18: ...f installed in any of the conditions listed Installing in an Area Exposed to Unconditioned Air In some installation applications areas floors walls in some rooms may be exposed to unconditioned air room may be above or next to an unheated garage or storeroom To countermeasure Verify that carpet is or will be installed carpet may increase the temperature by three 3 degrees Add insulation between th...

Страница 19: ... the hole must be 3 16 to 5 16 from level with the slant being upward on the indoor unit side and downward on the outdoor unit side 2 Finish off the newly drilled hole as shown with bushing and sleeve covering to pre vent damage to the insulation and piping 3 16 5 16 Indoor WALL Outdoor Bushing Core Drill Sleeve Figure 12 Drilling Piping Hole When choosing a location for the wall mount plate be su...

Страница 20: ...s located in the middle of the bottom cover Location 2 Number of C hooks present depends on model of indoor unit 3 Lift the three 3 to four 4 hinges on the bottom cover up and out of the channels molded to the left right and middle of the indoor unit Location 3 Number of hinges present depends on model of indoor unit 4 Set aside the bottom cover to re install after all procedures are complete 3 3 ...

Страница 21: ...on of the installation plate 2 Engage the hooks at the top of the indoor unit with the upper edge of the installation plate number of hooks depends on model type 3 Ensure the hooks are properly seated on the installation plate by shaking the indoor unit left and right Permanently secure the indoor unit to the wall ONLY AFTER all other tasks such as Refrigerant Piping Connections Drain Piping Conne...

Страница 22: ...sed and secure the indoor unit to the installation plate as detailed in Steps 5 and 6 in Mounting the Indoor Unit to the Installation Plate on the previous page 1 To prepare the indoor unit for piping and electrical installation disengage bottom on indoor unit from installation plate by reversing Steps 6 5 and 4 from the previous procedure if those procedures have been performed 2 Unsnap the pipin...

Страница 23: ...e of the most critical elements of a single zone system is the refrigerant piping If the connection piping is not within allowable lim its there will be reliability performance noise and vibration issues See the table below for pipe length limits that must be followed in the design of a Single Zone Art Cool Mirror Wall Mount refrigerant pipe system For information on additional refrigerant charge ...

Страница 24: ... DHP Straight Lengths H58 Temper Coils O60 Temper Table 9 ACR Rated Copper Tubing Material OD in 1 4 3 8 1 2 5 8 3 4 7 8 1 1 8 1 3 8 1 5 8 Material Rigid or Soft ACR Rated for R410A Rigid or Solid ACR Rated for R410A Min Bend Radius in 0 563 0 9375 1 5 2 25 3 0 3 0 3 5 4 0 4 5 Min Wall Thickness in 0 03 0 03 0 03 0 03 0 03 0 03 0 03 0 04 0 050 Table 10 ACR Copper Tubing Dimensions and Physical Cha...

Страница 25: ...n distance Do the same for the maximum pipe temperature 3 Calculate the difference in the two expansion distance values The result will be the anticipated change in pipe length General Example A system is installed and the design shows that there is a 100 foot straight segment of tubing between an indoor unit and the outdoor unit In heating this pipe transports hot gas vapor to the indoor units at...

Страница 26: ...0 85 0 90 0 95 1 00 1 05 1 10 1 08 1 15 1 30 1 40 1 45 1 50 120 0 48 0 48 0 60 0 72 0 78 0 84 0 90 0 96 1 02 1 08 1 14 1 20 1 26 1 32 1 30 1 38 1 56 1 68 1 74 1 80 140 0 56 0 56 0 70 0 84 0 91 0 98 1 05 1 12 1 19 1 26 1 33 1 40 1 47 1 54 1 51 1 61 1 82 1 96 2 03 2 10 160 0 64 0 64 0 80 0 96 1 04 1 12 1 20 1 28 1 36 1 44 1 52 1 60 1 68 1 76 1 73 1 84 2 08 2 24 2 32 2 40 180 0 72 0 72 0 90 1 08 1 17...

Страница 27: ...ges Refrigerant oil degradation Poor insulation of the compressor System does not operate properly Solutions Remove moisture from the piping Piping ends should remain capped until connections are complete Do not install piping on a rainy day Connect piping properly at the unit s side Remove caps only after the piping is cut the burrs are removed and after passing the piping through the walls Evacu...

Страница 28: ...and calculated into the total and segment equivalent piping lengths and compared to product design limitations In all cases materials must be suitable for the application and any applicable codes including but not limited to diameter and wall thick ness continuity per ACR standards Failure to do so may cause significant performance degradation Proper leak checks must be performed Using isolation v...

Страница 29: ... between the hangers and insulation Field provided pipe supports must be designed to meet local codes If allowed by code use fiber straps or split ring hangers suspended from the ceiling on all thread rods fiber straps or split ring hangers can be used as long as they do not compress the pipe insulation Place a second layer of insulation over the pipe insulation jacket to prevent chafing and compr...

Страница 30: ...out any joints Underground refrigerant pipe must be located at a level below the frost line Table 14 Utility Conduit Sizes 1 OD pipe diameter in inches Values in parenthesis indicate OD of pipe with insulation jacket 2 Diameter of pipe with insulation Thickness of pipe insulation is typical Actual required thickness may vary based on surrounding ambient conditions and must be calculated and specif...

Страница 31: ...own ALWAYS create a 45 flare when working with R410A 1 Cut the pipe to length Measure the distance between the indoor unit and the outdoor unit Cut the pipes a little longer than measured distance 2A Remove the burrs Completely remove all burrs from pipe ends When removing burrs point the end of the copper pipe down to avoid introducing foreign materials in the pipe 2B Slide the flare nut onto the...

Страница 32: ...lary tubes small orifices electronic expansion valves oil separators and heat exchangers that can easily become blocked Proper system operation depends on the installer using best practices and utmost care while assembling the piping system 2 Store pipe stock in a dry place keep stored pipe capped and clean 3 Blow clean all pipe sections with dry nitrogen prior to assembly 4 Always use a non oxidi...

Страница 33: ...itations in conjunction with outdoor unit and indoor unit positioning When proceeding with piping connections adhere to pipe support spacing lengths as shown in the General Refrigerant Piping System Information section Refer to the Pipe Supports section for information on using clamps and pipe support materials Always adhere to local codes regarding piping and ac curate support spacing along the p...

Страница 34: ...all that are around the piping When the Outdoor Unit is Installed Above the Indoor Unit 1 Use a conduit piping set cover or bundle the separately insulated refrigerant piping and the communications connection power cable together up to the outdoor unit service valves 2 Make sure to include some slack in the wiring Wiring must be installed in upwards direction to prevent water from traveling into t...

Страница 35: ...embling Do not add any contaminants Tighten the flare nut initially by hand 5 Finish tightening the flare nut with a torque wrench until the wrench clicks Follow torque guidelines in the table below See figures for correct connection points Piping Control Box Cover LSU090 120HSV5 Gas Vapor Piping Bigger Diameter Liquid Piping Smaller Diameter Torque Wrench LSU090 120HSV5 Piping Cover Control Box C...

Страница 36: ...by unfolding and bending the piping slowly downward first as shown then to the left or right pre chosen following installation guidelines and application needs as shown Secure piping with the piping holder Figure 43 Bending Piping at Rear of Indoor Unit Indoor Unit Connections for HSV5 Units Figure 44 Removing the Bottom Cover Figure 45 Removing the Bottom Cover Alternate View To access the indoor...

Страница 37: ...wer connections are complete before starting the piping connec tions 1 Insert drain hose on left feature may differ depending on model of indoor unit 2 Align the center of the refrigerant piping and corresponding con nection as shown on the next page 3 Place a couple of drops of refrigerant oil on outside of the flare before assembling Do not add any contaminants Tighten the flare nut initially by...

Страница 38: ...e top of the bundle can cause condensate to overflow from the drain pan in the inside of the indoor unit Right Side Piping Piping Connection Cable Tape Drain Hose Figure 49 Piping Installation When Piping is on the Right Side Indoor Unit Piping Flare Nut Field Installed Piping Pipe Size in O D Outside Diameter mm Torque ft lbs 1 4 6 35 13 0 18 0 3 8 9 52 24 6 30 4 1 2 12 7 39 8 47 7 5 8 15 88 45 4...

Страница 39: ...ver 3 Remove the chassis cover being careful not to scratch the main horizontal vane 4 From the rear of the indoor unit pull the tubing holder away from the unit 5 Remove the pipe port cover 6 Position the tubing by unfolding the tubing and bending the tubing slowly downward first as shown below Figure 52 Removing Chassis Cover from Indoor Unit HSV3 Bending the tubing directly left or right withou...

Страница 40: ...ations Drain Connection LSU180HSV5 Drain Washer Drain Caps Drain Cap Figure 58 LSU180HSV5 Drain Component Locations Indoor Unit Condensate Drain Hose Installation Refer to the diagrams below and follow proper installation and the position of the drain hose along the refrigerant piping installation path to avoid leaks After the drain hose is set in place always follow with leak pressure testing and...

Страница 41: ...be pulled out of the field supplied drain pipe 2 inches Drain Hose Interior Wall Vinyl Chloride Drain Pipe Exterior Wall Accumulated drain water Tip of Drain Hose In Container Tip of Drain Hose Pointing Up Tip of Drain Hose In Water Air Kinks Water Leak Water Leak Ditch Less than 2 inch Gap Between Bottom of Drain Hose and Ground Water Leak No rainwater trap Drain Hose and Ground are Parallel Hori...

Страница 42: ...th separately insulated refrigerant pipes the drain hose and outdoor unit to indoor unit communication connection power cable together with wide vinyl tape 1 Both piping must be fully and separately encased in insulation material Overlap the field installation piping insulation material and the indoor unit piping insulation material 2 Bind together the two pipes using vinyl tape Make sure there ar...

Страница 43: ... the outdoor unit maximum pipe temperature is 248 F and minimum pipe temperature is 40 F For field insulation of refrigerant piping between outdoor units and indoor units consider the following pipe temperature ranges for an operating heat pump system Heating mode refrigerant temperature ranges Liquid 75 118 F High Pressure Vapor 95 220 F Cooling mode refrigerant temperature ranges Liquid 75 118 F...

Страница 44: ...ø1 2 inch 1 2 inches 1 2 inches 1 2 inches 1 2 inches Vapor pipe ø3 8 inch 1 2 inches 3 4 inches 3 4 inches 1 inch ø1 2 inch ø5 8 inch ø3 4 inch ø7 8 inch ø1 inch ø1 1 8 inches 3 4 inches ø1 1 4 inches 1 inch 1 inch ø1 3 8 inches ø1 1 2 inches ø1 3 4 inches Table 18 Minimum Refrigerant Pipe EPDM Insulation Wall Thickness Requirements 1 Do not insulate gas and liquid pipes together as this can resu...

Страница 45: ... wire to refrigerant gas or water piping to lightning rods to telephone ground wiring or to the building plumbing system Failure to properly provide a NEC approved earth ground can result in electric shock fire physical injury or death Consider ambient conditions temperature direct sunlight inclement weather etc when selecting installing and connecting the power wiring Properly ground the Single Z...

Страница 46: ... instructions demonstrated in the figures below Never apply line voltage power to the communications cable terminal block If contact is made the PCBs may be damaged Always include some allowance in the wiring length when terminating Firmly attach the wiring or cable but provide some slack to facilitate removing the electrical panels while ser vicing and to prevent external forces from damaging the...

Страница 47: ...onnections It may generate heat and or cause a fire resulting in physical injury or death Use heat proof electrical wire capable of withstanding temperatures up to 167 F to avoid wiring malfunction and electrical shock which may cause physical injury or death Install appropriately sized breakers fuses overcurrent protection switches and wiring in accordance with local state and NEC regulation rela...

Страница 48: ...h the cable provide slack but secure in a way to pre vent external forces from being imparted on the terminal block Wiring must be completed without splices Always verify the communication cable is connected to a communications terminal on the Single Zone Extended Piping unit Never apply line voltage power to the communication cable connection If contact is made the PCBs will be damaged The shield...

Страница 49: ...p ELECTRICAL SYSTEM INSTALLATION Figure 78 Typical LA090 120HSV5 Power Communication System Diagram For Wiring Lengths Up to 130 Feet 208 230 VAC Figure 79 Typical LA180HSV5 Power Communication System Dia gram For Wiring Lengths Up to 130 Feet Figure 80 Typical LA240HSV3 Power Communication System Diagram For Wiring Lengths Up to 130 Feet Power Communication System Diagrams For Wiring Lengths Up t...

Страница 50: ...r Wiring Lengths GREATER THAN 130 Feet Figure 83 Typical LA240HSV3 Power Communication System Diagram For Wiring Lengths GREATER THAN 130 Feet Figure 84 Schematic of a Single Zone System When the Wiring is GREATER THAN 130 Feet Connections and Specifications 208 230 VAC Power Supply 1 L1 Power L 2 L2 Neutral N G Ground Power Flow L N Diagram is an example of communication and power cables when the...

Страница 51: ...CB 2 Field supplied controller cable that connects to the indoor unit terminal block must be at least UL2547 or UL1007 and at least FT 6 rated if local electric and building codes require plenum cable usage Communication cable from indoor unit to remote controller s is to be 22 AWG 3 conductor twisted stranded unshielded Wiring must comply with all applicable local and national codes Figure 85 AKB...

Страница 52: ...ocated at the front bottom right hand side of the indoor unit To access the terminals unscrew the metal control cover screw if applicable and raise the metal control cover 6 Using a JIS screwdriver connect the cable terminals to the terminal block Ensure wire color and terminal number of the indoor unit matches those of the outdoor unit Refer to the wiring diagram on the inside of the bottom cover...

Страница 53: ...on the drain hose at the bottom Positioning the drain hose at the top of the bundle can cause condensate to overflow from the drain pan in the inside of the indoor unit Cable Installation When Piping is on the Right Side Connect the terminals to the terminal block Secure the cable onto the terminal block with the cable retainer Secure the refrigerant piping drain hose and communication connection ...

Страница 54: ...r unit Images are representative actual appearance may vary Refer to the circuit diagram on the indoor unit bottom cover Indoor Unit Electrical Connections 1 At the bottom panel of the indoor unit unsnap the latches which cover the phillips screw heads Usually there are three 3 screws on the panel however this may vary depending on the indoor unit 2 Using a phillips head screwdriver remove the scr...

Страница 55: ... Indoor Unit Electrical Wiring for HSV3 Units continued 5 When done reattach the bottom panel to the indoor unit being careful to align panel using the rear tabs 6 Using a screwdriver reattach the screws to the bottom panel and secure 7 Once screws are in place re snap the latches over the screws If all other piping and electrical wiring to the outside unit has been completed at this stage the sys...

Страница 56: ... from the outdoor unit 2 Inspect all wiring inside the chassis to be sure they are secure and have not loosen during transportation and installation of the outdoor unit Inspect wires for damage or cracks Loose damaged or cracked wires may cause electric shock bodily injury and or death Loose wires can cause the wiring to burn out damaging the outdoor unit 3 Confirm that electrical power supply cap...

Страница 57: ...ct wires as shown at right See also indoor unit wiring diagram found on its bottom cover and outdoor unit wiring diagram on the inside of its chassis cover Each wire must be individually and securely attached to each terminal Loose damaged or cracked wires may cause electric shock bodily injury and or death Loose wires can cause the wiring to burn out damaging the outdoor unit Secure wiring cables...

Страница 58: ...iping system must not be pressured to more than 550 psi Pressures greater than 550 psi may damage the piping system and cause unit malfunction Triple Leak Pressure Check Procedure 1 After the refrigerant piping installation is complete open the isolation ball valves if any that may have been included in the piping system 2 Verify that both the liquid and gas vapor suction line outdoor unit service...

Страница 59: ...m pump that can reach 500 microns vacuum rated hoses or copper tubing and a leak free gauge manifold set Use only new vacuum pump oil from a properly sealed unopened container and change oil in pump before EVERY use Subsequent oil changes will be necessary after several hours of continuous operation have extra oil on hand Use a quality micron gauge in good operating order and install as far away f...

Страница 60: ... system is ready to operate Any field installed ball valves in the refrigerant system if used must be open to ensure all piping is free and clear for evacuation on all piping and connected indoor unit Never perform evacuation using refrigerant Use only a vacuum pump that can reach 500 microns vacuum rated hoses or copper tubing and a leak free gauge manifold set Use only new vacuum pump oil from a...

Страница 61: ...tes If the micron level DOES NOT stop rising there is a leak and the leak test must be performed again If the micron level DOES rise above 2 000 micron re open the manifold gauges and the vacuum pump valve and continue evacuation back down to 2 000 micron level If the micron level holds at 2 000 micron continue to step 4 4 Break vacuum with 50 psig nitrogen purge for an appropriate amount of time ...

Страница 62: ...ion X g Refrigerant Pipe Length No Charge Pipe Length Additional Refrigerant There is no need to add refrigerant if equivalent pipe is less than the piping length with no additional refrigerant in the table above Finishing the Job After the Triple Leak and Evacuation and refrigerant trim charge if any procedures have been performed follow the steps below to open the refrigerant lines 1 Verify that...

Страница 63: ...on model of indoor unit On the outside of the bottom cover securely snap the C hooks in place at each location using the heel of the palm 4 Match the snaps at the top left and right sides of the bottom cover to their sockets and push to lock the bottom cover to the indoor unit Location 3 5 Verify the bottom cover is securely installed by pushing the bot tom cover to the indoor unit at all attachme...

Страница 64: ...the system It is easier to assemble and disassemble the air filter if standing on a ladder looking down at the top of the indoor unit Do not bend the air filter this damages it If the air filter is not assembled correctly dust and other substanc es will enter the indoor unit 2 Lifting the Air Filter by the Handles 3 Disassembling the Air Filter Air Filter Disassembly and Assembly Air Filter Disass...

Страница 65: ...for 18 minutes before returning to the factory default setting While system oper ates in the test operation mode note any issues that occur and fix as necessary Figure 116 Test Operation Mode On Off Button If the actual pressure is higher than shown the system is most likely overcharged and charge must be removed If the actual pressure is lower than shown the system is most likely under charged an...

Страница 66: ...to the system but system must be OFF with all functions inactive 2 Enter the Installer mode 3 Set code to 47 4 Press the ON OFF button and select the code number 47 Unit will beep to acknowledge that the code has been received 5 Turn off power for a minimum of 30 seconds 6 Turn power back on to system Disabling Heating Only Mode 1 Supply power to the system but system must be OFF with all function...

Страница 67: ...e halfway and purge the air in the manifold hose using the refrigerant 3 Fully close the liquid piping service valve 4 Turn on the unit s power switch and start the cooling mode operation 5 Observe the pressure gauge reading When it changes 14 2 to 7 1 psig fully close the gas line valve and then immediately turn the unit off Pump down procedure is complete and all refrigerant will be collected in...

Страница 68: ...ducts You must understand the inverter air conditioning operation cycle the meaning of the data displayed by SIMs and how to use the data to troubleshoot the system The Duct Free System air conditioning system must run for at least 15 20 minutes before data collected by SIMs is valid for troubleshooting The free SIMs app must be correctly installed on the smart phone before using SIMs Some outdoor...

Страница 69: ...tart Timer Comp Mode EEV Indoor Info Tab Displays the following information Frequency Operation THM Mode REM Mode FAN EEV Air Temp Pipe in Pipe mid Pipe out Graph Info Tab This tab has three sub sections IDU Indoor Unit Temperature graph Displays IDU informa tion in graph format In formation displayed is for the IDU selected on the Main screen ODU Outdoor Unit Temperature and Fre quency graph Disp...

Страница 70: ... sensor error 1X 2 Indoor unit inlet pipe sensor error 2X 3 Wired remote control error 3X 4 Float switch error optional 4X 5 Communication error between indoor unit and outdoor unit 5X 6 Indoor unit outlet pipe sensor error 6X 9 Indoor unit EPROM error 9X 10 Indoor unit BLDC motor fan lock 1X 12 Indoor unit middle pipe sensor error 2X 1X 21 DC Peak IPM Fault Compressor DC voltage was too high 2X 1...

Страница 71: ...Air Sensor is disconnected or shorted out 4X 4X 45 Middle thermistor of outdoor unit condenser coil is disconnected or shorted out 4X 5X 46 Outdoor unit suction line thermistor is disconnected or shorted out 4X 6X 48 Outdoor unit coil outlet liquid line thermistor is disconnected or shorted out 4X 8X 53 Communication failure from outdoor unit to indoor unit 5X 3X 60 Outdoor unit printed circuit bo...

Страница 72: ...g Engineers Inc ASHRAE Atlanta GA ASHRAE Inc Information about ASHRAE Standard 15 2010 34 2010 and addenda current as of the date of this publication Take appropriate actions at the end of HVAC equipment life to recover recycle reclaim or destroy R410A refrigerant according to applicable US EPA rules Total System Refrigerant Charge To calculate the potential refrigerant concentration level RCL 1 M...

Страница 73: ...rated full port ball valves Schrader between the valve body and the indoor unit used at the indoor unit and at will in the refrigerant piping Condensate Pump Drain Installation Description Check Condensate drain installed on indoor units Extended condensate piping material used is acceptable under local code Insulated to prevent condensation Indoor unit condensate drain pipes were installed correc...

Страница 74: ...cs U S A Inc Air Conditioning Technologies 4300 North Point Parkway Alpharetta Georgia 30022 www lghvac com IM_SZ_ArtCoolMirror_09_18 Supersedes IM SZ ArtCoolMirror_HSV4 04 15 LG Customer Information Center Commercial Products 1 888 865 3026 USA Follow the prompts for commercial A C products 20001747 ISO 9001 2008 LG ELECTRONICS INC ...

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