LGRED Heat LMU180HHV Service Manual

ManualsBrandsLG ManualsCoolingCeiling Cassette 2-Zone LGRED° Heat System - 18,000 BTU Outdoor - 7k + 7k Indoor - 21 SEER

Please read this manual carefully before operating your set and retain it for future reference.

E-View

Multi Air Conditioner

A4UW30GFH0 [LMU300HHV] / A3UW24GFH0 [LMU240HHV]

A2UW18GFH0 [LMU180HHV]

P/NO : MFL67452453

SERVICE MANUAL

AIR

CONDITIONER

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.

Summary of content (14 pages)

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CONFIDENTIAL SERVICE MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference.
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1. Specification Btu/h Class Btu/h Btu/h kW kW V, Ø, Hz A A A A No. x AWG A2UW18GFH0 [LMU180HHV] 18,000 8400~18000~19980 10248~22000~24000 0.87~1.33~1.92 1.24~2.20~3.29 13.5/2.9 21.0/10.0 19.25/9.5 17.5/9.0 208/230, 1, 60 4.1~6.1~8.7 5.6~9.8~14.9 3C x 12 A3UW24GFH0 [LMU240HHV] 24,000 8400~24000~30000 10248~26000~31200 0.93~1.78~2.63 1.25~2.12~3.47 13.5/3.6 21.0/10.7 19.0/9.85 17.0/9.0 208/230, 1, 60 4.2~7.8~11.9 4.8~9.9~14.9 3C x 12 A4UW30GFH0 [LMU300HHV] 30,000 8400~28400~34080 10248~28600~41600 0.94~2.
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2. List of Functions & Accessory 2.
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3. Piping Diagrams 3.1 30k Outdoor Unit Condenser Out Temperature Thermistor Ø 6.35 Flare Connection Inlet Air Temperature Thermistor Condensing Temperature Thermistor Electronic Expansion Valve ROOM A M Main SVC V/V ROOM B Field Piping Liquid(Ø6.35) ROOM C ROOM D Pressure Sensor Main SVC V/V ROOM A ROOM B Field Piping Gas(Ø9.52) ROOM C Suction Temperature Thermistor ROOM D Discharge Temperature Thermistor Ø9.
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3.2 24k Outdoor Unit Condenser Out Temperature Thermistor Ø 6.35 Flare Connection Inlet Air Temperature Thermistor Condensing Temperature Thermistor Electronic Expansion Valve ROOM A Field Piping Liquid(Ø6.35) M Main SVC V/V ROOM B ROOM C Pressure Sensor Main SVC V/V ROOM A Field Piping Gas(Ø9.52) ROOM B ROOM C Suction Temperature Thermistor Discharge Temperature Thermistor Ø9.
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3.3 18k Outdoor Unit Condenser Out Temperature Thermistor Inlet Air Temperature Thermistor Ø 6.35 Flare Connection Condensing Temperature Thermistor Electronic Expansion Valve M Main SVC V/V ROOM A Field Piping Liquid(Ø6.35) ROOM B Pressure Sensor Main SVC V/V Field Piping Gas(Ø9.52) ROOM A ROOM B Ø9.
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4. Wiring Diagrams 4.
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4.
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4.
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INV PCB CN-C_PIPE CN-AIR CN-LGMV CN-MID CN-BLDC SW1 CN-SUCTION CN-DISCHARGE CN-H_PRESS CN-EEV4 CN-EEV3 CN-EEV2 CN-POWER CN-EEV1 CN-UVW REACTOR_OUT2 REACTOR_IN REACTOR_OUT1 CN-HEATER2 - 10 - CN-H_GAS CN-4WAY
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5. Exploded View 5.1 30k 435512 435300 554031 447910 437212 137213C W6631 552115 549610 552113 559010 546810 554160 550140 552203A 165000 430410 552203B 561410 152503 661400A 661400B 661400C 661400D 437211 552202 552200B 237202 137213A 137213B 552116 349480 W49810 268711A W4986A 268711B W6200 263230A W4986B 263230D 263230B 649950 263230E W6640A 263230C 435301 W6640B Location No.
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5.2 24k 435512 435300 554031 447910 437212 137213C W6631 552115 549610 552113 559010 546810 554160 550140 552203A 165000 430410 552203B 561410 152503 661400A 661400B 661400C 437211 552202 552200B 237202 137213A 137213B 552116 349480 W49810 268711A W4986A 268711B W6200 263230A W4986B 263230D 263230B 649950 263230E W6640A 263230C 435301 W6640B Location No.
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5.3 18k 435512 435300 554031 447910 437212 137213C W6631 552115 549610 552113 559010 546810 554160 550140 552203A 165000 430410 552203B 561410 152503 661400A 661400B 437211 552200B 552202 237202 137213A 137213B 552116 349480 W49810 268711A W4986A 268711B W6200 263230A W4986B 263230D 263230B 649950 263230E W6640A 263230C 435301 W6640B Location No.
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