LG Central Air Conditioning Remote Condensing Unit Installation Instructions & Use And Care Download | Manualshive

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LG

Installation Instructions & Use and care

MANUAL

LG

website http://www.LG.ca

LG Central Air Conditioning
Remote Condensing Unit

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Summary of Contents for Central Air Conditioning Remote Condensing Unit

Page 1: ...LG Installation Instructions Use and care MANUAL LG website http www LG ca LG Central Air Conditioning Remote Condensing Unit ...

Page 2: ...on Instructions These Instructions Should be carefully read and kept with the production for future reference Attention Installer System installer s guide Check list Page 11 shall be completed as per instructions ...

Page 3: ...NTY 17 SAFETY Understand the following safety terms o Danger Identifies hazards that will result in personal injury or death o Warning Identifies hazards that could result in personal injury or death o Caution Identifies unsafe practices that will result in minor personal Injury property damage or product damage Read all installation instructions thoroughly prior to installing product Warning Alwa...

Page 4: ...1 32 2211 16 2711 16 3 5 Ton 28 27 325 8 4 0 Ton 28 27 325 8 5 0 Ton Table 1 MINIMUM CLEARANCES SEE FIGURE 1 30 clearance to service panel 6 clearance to one side of the unit 12 clearance to two other sides of unit 24 Clearance between two condensing units 60 clearance above unit INSTALLATION LOCATION Away from windows Do not install under gas appliance vent At least 36 away from clothes dryer ven...

Page 5: ...50ft Max X ft Indoor unit Outdoor unit Must be above top of condenser coil Gas line at each 35ft Oil trap 6 Indoor unit Liquid line Must be above top of condenser coil LINE SET INSTALLATION Verify proper diameter sizes for liquid line and vapor lines Long line sets may require larger diameter vapor line See Table 2 The maximum line set length is listed in Table 3 Refer to Figure 2 for dimension me...

Page 6: ...or line on smaller lines bulb may be mounted on top do not mount bulb on bottom of line 7 8 larger vator line Bulb vator Line 12 3 9 Fig 5 For TXV Caution Remove piston located between liq uid line set and indoor coil distributor Screw TXV into distributor assembly Connect pressure equalizer tube w flare nut to indoor coil pressure port Caution Always make sure the suction line is cleaned before c...

Page 7: ...rts 800 PSI Rated Hoses Gauge Manifold Connect For Charging Only Fig 6 EVACUATION See Figure 6 1 Close valves on gauge set 2 Connect gauge hoses to service valve ports Service valves on unit remain closed 3 Connect vacuum pump to gauge set 4 Start the vacuum pump 5 Open the high and low pressure ports on the gauge set 6 Begin evacuation 7 Vacuum pressure must pull down below 500 microns in 2 minut...

Page 8: ...h gauge set valves closed open both service valves ELECTRICAL Warning To avoid personal injury or death disconnect power to unit prior to electrical wire connec tions 1 Open disconnect switch 2 Trip circuit breaker to indoor air handler or gas furnace 3 Select proper wire size per National Electric Code 4 Connect power wires and ground wire as shown in Figure 7 Warning Electrical ground wire must ...

Page 9: ... temperature near return duct Refer to temperature pressure chart for proper refrigerant Look up low pressure reading on Table 5 Record saturated vapor temperature corresponding to the suction pressure Calculate actual superheat as follows SH Tvapor line Tsat vapor Look up high pressure reading on Table 6 Record saturated liquid temperature corresponding to the liquid line pressure Calculate actua...

Page 10: ...e than 2 F refrigerant must be added If actual subcooling is greater than the proper subcooling by more than 2 F remove small quantity of refrigerant Saturated Suction Temperature R 22 Suction Pressure Saturated Suction PSIG Temperature F 60 1 34 62 8 36 65 6 38 68 5 40 71 4 42 74 5 44 77 6 46 80 7 48 84 50 87 3 52 90 8 54 94 3 56 Table 5 Saturated Suction Temperature R 22 Suction Pressure Saturat...

Page 11: ... Use and Care Manual with homeowner Discuss operation and routine maintenance with homeowner CARE AND MAINTENANCE Warning Always use disconnect switch to disconnect power to unit prior to opening electrical control box to avoid electrical shock Electrical shock can cause personal injury or death Warning Always recover refrigerant and relieve pressures before system repair to avoid per sonal injury...

Page 12: ...ulated 3 Have passages through masonry been sealed If mortar is used prevent mortar from coming in direct contact with copper tubing 4 Indoor coil drains freely Pour water into drain pan 5 Supply registers and return grilles are open and unobstructed 6 Return air filter installed 7 Thermostat thermometer is accurate and thermostat is level 8 Is correct speed tap being used Indoor blower motor 9 Do...

Page 13: ...trols function properly 22 Check the voltage with unit running Does it check within the tolerance of 207 to 253V for 230V or 198 to 228V If using 208V power indoors have you modified the transformer wiring as necessary 23 Has the air flow across the indoor coil been checked and adjusted 24 Has the system operated at least 30 minutes before leaving the job 25 Does the owner understand the operation...

Page 14: ...ing pressures provided in the unit s Service Manual NOTE TO CHARGE THE SYSTEM ACCURATELY USE SUPERHEAT OR SUBCOOLING METHOD DEPENDING ON THE FLOW CONTROL USED IN THE SYSTEM 2 Except as required for safety while servicing DO NOT OPEN SYSTEM DISCONNECT SWITCH 3 Measure and record the following Line voltage contactor during start up VAC Compressor amperage Amps Condenser Fan Amperage Amps Vapor Sucti...

Page 15: ...installation or use can cause electrical shock or other conditions that may result in personal injury death or property damage Refer to a qualified installer dealer for service work or assistance Warning Do not to attempt to repair the air conditioner yourself THERMOSTAT OPERATION The air conditioning unit is controlled by an indoor thermostat If you have recently moved into your home take some ti...

Page 16: ...to unit Use a condenser cap or cover during winter Make sure to remove prior to cooling season If using cover make sure cover is short enough to expose unit at least 4 from the ground Verify that clothes dryer vent is not blowing lint at outdoor unit In some cases the outdoor coil may need to be cleaned This is a job that must be performed by a qualified dealer AIR FILTER The air filter collects d...

Page 17: ...g permanent air filter the indoor coil should stay fairly clean If coil cleaning is needed please call your local dealer for service The local dealer has the appropriate deter gents needed to properly clean the coil TROUBLESHOOTING If your air conditioner is not operating or operating poorly check the following Check air filter and replace if clogged Make sure thermostat is adjusted programmed cor...

Page 18: ...e not compatible with this product 12 Products with altered or removed serial numbers 13 Changes in the appearance of the product that do not affect product performance 14 Increases in utility costs and additional utility expenses Should your product prove to be defective in materials or workmanship under normal use during the warranty period listed below LG Electronics will at its option repair o...

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