LG LHN247HV Service Manual
Air Conditioner
SERVICE MANUAL
(Exploded View)
MODEL :
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
CONFIDENTIAL
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication,
modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained
the prior written consent of the LG Electronics entity from which you received this Service Manual. The material
covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.
Copyright © 2016 - 2019 LG Electronics Inc. All rights reserved. Only training and service purposes.
LUU188HV LUU189HV LUU248HV
LUU249HV LUU368HV LUU369HV
LUU428HV LUU429HV LUU488HV
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Copyright © 2016 - 2019 LG Electronics Inc.
All rights reserved. Only training and service purposes.
1. Specification
Note:
1. Wiring cable size must comply with the applicable local and national code.
2. Due to our policy of innovation some specifications may be changed without notification.
3. Sound Level Values are measured at Anechoic chamber.
Therefore, these values can be increased owing to ambient conditions during operation.
4. Cooling Operation Range : -15(5)~48(118)
When applying the Wind Baffle: -20(-4)~
Outdoor unit LUU188HV / LUU248HV LUU189HV
Power Supply V, Ø, Hz 208 / 230, 1, 60 208 / 230, 1, 60
Wiring Connections Power Supply Cable (included Earth) No. x mm2(AWG) 3C x 2.5 (12) 3C x 2.5 (12)
Casing Color - Warm Gray Warm Gray
Dimensions
W x H x D mm 950 x 834 x 330 950 x 834 x 330
W x H x D inch 37-13/32 x 32-27/32 37-13/32 x 32-27/32
Net Weight kg (lbs) 58.5 (129) 59.6 (131)
Compressor
Type - Twin Rotary Twin Rotary
Model Model x No. GJT240MAA x 1 GJT240MAA x 1
Motor type - BLDC BLDC
Motor Output W x No. 2 137 (at 60Hz) x 1 2 137 (at 60Hz) x 1
Refrigerant
Type - R410A R410A
Precharged Amount g (lbs) 2 200(4.9) 1 700(3.75)
Chargeless-Pipe Length m (ft) 7.5 (24.6) 7.5 (24.6)
Additional Charging Volume g/m (oz/ft) 40 (0.43) 40 (0.43)
Control - Electronic Expansion Valve Electronic Expansion Valve
Refrigerant Oil
Type - FVC68D FVC68D
Charged volume cc x No. 900 x 1 900 x 1
Heat Exchanger (Row x Column x Fins per inch) x No. - (2 x 38 x 14) x 1 (2 x 38 x 14) x 1
Fan
Type - Axial Axial
Air Flow Rate m3/min x No. 58 x 1 58 x 1
Fan Motor
Type - BLDC BLDC
Output W x No. 124 x 1 124 x 1
Sound Pressure Level
Cooling Rated dB(A) 48 48
Heating Rated dB(A) 52 52
Piping Connections
Liquid Outer Dia. mm(inch) Ø 9.52 (3/8) Ø 9.52 (3/8)
Gas Outer Dia. mm(inch) Ø 15.88 (5/8) Ø 15.88 (5/8)
Piping Length Max. m (ft) 50 (164) 50 (164)
Maximum Height Outdoor Unit ~ Indoor Unit Max. m (ft) 30 (98) 30 (98)
Operation Range
(Outdoor Temperature)
Cooling Min. ~ Max. ℃ DB (℉ DB) -20 (-4) ~ 48 (118) -20 (-4) ~ 48 (118)
Heating Min. ~ Max. ℃ DB (℉ DB) -20 (-4) ~ 18 (64) -20 (-4) ~ 18 (64)
Electric Leakage Circuit Breaker A 30 30
- 3 -
Copyright © 2016 - 2019 LG Electronics Inc.
All rights reserved. Only training and service purposes.
Note:
1. Wiring cable size must comply with the applicable local and national code.
2. Due to our policy of innovation some specifications may be changed without notification.
3. Sound Level Values are measured at Anechoic chamber.
Therefore, these values can be increased owing to ambient conditions during operation.
4. Cooling Operation Range : -15(5)~48(118)
When applying the Wind Baffle: -20(-4)~
Outdoor unit LUU249HV
LUU368HV / LUU428HV /
LUU488HV
Power Supply V, Ø, Hz 208 / 230, 1, 60 208 / 230, 1, 60
Wiring Connections Power Supply Cable (included Earth) No. x mm2(AWG) 3C x 2.5 (12) 3C x 6.0 (10)
Casing Color - Warm Gray Warm Gray
Dimensions
W x H x D mm 950 x 834 x 330 950 x 1 380 x 330
W x H x D inch 37-13/32 x 32-27/32 37-13/32 x 54-11/32 x 13
Net Weight kg (lbs) 59 (130) 92 (203)
Compressor
Type - Twin Rotary Twin Rotary
Model Model x No. GJT240MAA x 1 GPT442MBA x 1
Motor type - BLDC BLDC
Motor Output W x No. 2 137 (at 60Hz) x 1 4 241 (at 60 Hz) x 1
Refrigerant
Type - R410A R410A
Precharged Amount g (lbs) 2 000 (4.41) 3 400 (7.5)
Chargeless-Pipe Length m (ft) 7.5 (24.6) 7.5 (24.6)
Additional Charging Volume g/m (oz/ft) 40 (0.43) 40 (0.43)
Control - Electronic Expansion Valve Electronic Expansion Valve
Refrigerant Oil
Type - FVC68D FVC68D
Charged volume cc x No. 900 x 1 1 300 x 1
Heat Exchanger (Row x Column x Fins per inch) x No. - (2 x 38 x 14) x 1 (2 x 32 x 14) x 2
Fan
Type - Axial Axial
Air Flow Rate m3/min x No. 58 x 1 120 x 2
Fan Motor
Type - BLDC BLDC
Output W x No. 124 x 1 124 x 2
Sound Pressure Level
Cooling Rated dB(A) 48 52
Heating Rated dB(A) 52 54
Piping Connections
Liquid Outer Dia. mm(inch) Ø 9.52 (3/8) Ø 9.52 (3/8)
Gas Outer Dia. mm(inch) Ø 15.88 (5/8) Ø 15.88 (5/8)
Piping Length Max. m (ft) 50 (164) 75 (246)
Maximum Height Outdoor Unit ~ Indoor Unit Max. m (ft) 30 (98) 30 (98)
Operation Range
(Outdoor Temperature)
Cooling Min. ~ Max. ℃ DB (℉ DB) -20 (-4) ~ 48 (118) -20 (-4) ~ 48 (118)
Heating Min. ~ Max. ℃ DB (℉ DB) -18(-0.4) ~ 18 (64) -20 (-4) ~ 18 (64)
Electric Leakage Circuit Breaker A 30 40
- 4 -
Copyright © 2016 - 2019 LG Electronics Inc.
All rights reserved. Only training and service purposes.
Note:
1. Wiring cable size must comply with the applicable local and national code.
2. Due to our policy of innovation some specifications may be changed without notification.
3. Sound Level Values are measured at Anechoic chamber.
Therefore, these values can be increased owing to ambient conditions during operation.
4. Cooling Operation Range : -15(5)~48(118)
When applying the Wind Baffle: -20(-4)~
Outdoor unit LUU369HV / LUU429HV
Power Supply V, Ø, Hz 208 / 230, 1, 60
Wiring Connections Power Supply Cable (included Earth) No. x mm2(AWG) 3C x 6.0 (10)
Casing Color - Warm Gray
Dimensions
W x H x D mm 950 x 1 380 x 330
W x H x D inch 37-13/32 x 54-11/32 x 13
Net Weight kg (lbs) 90.2 (199)
Compressor
Type - Scroll
Model Model x No. RJA036MAA x 1
Motor type - BLDC
Motor Output W x No. 3 198 (at 60 Hz) x 1
Refrigerant
Type - R410A
Precharged Amount g (lbs) 3 400 (7.5)
Chargeless-Pipe Length m (ft) 7.5 (24.6)
Additional Charging Volume g/m (oz/ft) 40 (0.43)
Control - Electronic Expansion Valve
Refrigerant Oil
Type - FVC68D
Charged volume cc x No. 1 000 x 1
Heat Exchanger (Row x Column x Fins per inch) x No. - (2 x 32 x 14) x 2
Fan
Type - Axial
Air Flow Rate m3/min x No. 120 x 2
Fan Motor
Type - BLDC
Output W x No. 124 x 2
Sound Pressure Level
Cooling Rated dB(A) 52
Heating Rated dB(A) 54
Piping Connections
Liquid Outer Dia. mm(inch) Ø 9.52 (3/8)
Gas Outer Dia. mm(inch) Ø 15.88 (5/8)
Piping Length Max. m (ft) 75 (246)
Maximum Height Outdoor Unit ~ Indoor Unit Max. m (ft) 30 (98)
Operation Range
(Outdoor Temperature)
Cooling Min. ~ Max. ℃ DB (℉ DB) -20 (-4) ~ 48 (118)
Heating Min. ~ Max. ℃ DB (℉ DB) -20 (-4) ~ 18 (64)
Electric Leakage Circuit Breaker A 40
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Copyright © 2016 - 2019 LG Electronics Inc.
All rights reserved. Only training and service purposes.
2. Function Table
n Outdoor Units
Note:
O : Applied, X : Not applied
Accessory model name : Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate package
Category Functions
LUU188HV / LUU189HV / LUU248HV
LUU249HV / LUU368HV / LUU369HV
LUU428HV / LUU429HV / LUU488HV
Reliability
Defrost / Deicing O
Base Pan Heater PQSH1200
High pressure switch X
Low pressure switch X
Phase protection X
Restart delay (3-minutes) O
Self diagnosis O
Soft start O
Convenience
Test function X
Night Silent Operation O
Wiring Error Check X
Peak Control X
Mode Lock O
Pump Down O
Network function Network soluation(LGAP) O
Device
LUU188HV / LUU189HV / LUU248HV
LUU249HV / LUU368HV / LUU369HV
LUU428HV / LUU429HV / LUU488HV
Central Controller
AC Smart IV PACS4B000
ACP IV PACP4B000
PI485 PMNFP14A1
- 6 -
Copyright © 2016 - 2019 LG Electronics Inc.
All rights reserved. Only training and service purposes.
3. Piping Diagrams
Models : LUU188HV / LUU189HV / LUU248HV
LUU249HV / LUU368HV / LUU369HV
LUU428HV / LUU429HV / LUU488HV
Sensor information PCB Connector
Discharge pipe temperature CN_DISCHA_BK
Suction pipe temperature CN_SUCTION_GR
Cond-out pipe temperature CN_C_PIPE_VI
Air temperature CN_AIR_YL
Cond-mid pipe temperature CN_MID_BR
Pressure CN_H_PRESS_RD
Outdoor Unit
Refrigerant Flow
Cooling
Heating
Ø9.52
Flare Connection
Strainer Strainer
Electronic
Expansion Valve
Ø15.88
Flare Connection
Accumulator
Pressure
Sensor
Fusible Plug
Cond-out pipe
temperature
thermistor
Cond-mid pipe
temperature
thermistor
4 way
Valve
Discharge pipe
temperature
thermistor
Air temperature
thermistor
M
Suction pipe
temperature
thermistor
Inverter
Compressor
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