Lg LMU540HV Owner's Manual

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Lg LMU540HV Owner's Manual

Internal Use Only

http://biz.lgservice.com

Multi Air Conditioner

SVC MANUAL(Exploded View)

MODEL : A8UW54GFA0 [LMU540HV]

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

1. Specification

 

Model Name

 

 

A8UW54GFA0

 

 

 

[LMU540HV]

 

 

 

 

Capacity

 

Nominal

Btu/h Class

54,000

Capacity

Cooling

Min.~Rated~Max.

Btu/h

14,000 ~ 52,500 ~ 63,200

Heating

Min.~Rated~Max.

Btu/h

15,467 ~ 58,000 ~ 64,000

 

Power Input

Cooling

Min.~Rated~Max.

kW

1.0 ~ 5.10 ~ 5.86

Heating

Min.~Rated~Max.

kW

1.49 ~ 5.34 ~ 6.19

 

EER / COP

 

 

kBbu/h.W

10.3 / 3.2

 

 

 

Non Ducted

18.4 / 8.7

SEER / SCOP

 

 

Mixed

17.1 / 8.7

 

 

 

Ducted

15.8 / 8.7

Power Supply

 

 

V , Ø , Hz

208/230, 1, 60

Running Current

Cooling

Min.~Rated~Max.

A

4.6 ~ 23.7 ~ 27.2

Heating

Min.~Rated~Max.

A

6.9 ~ 24.8 ~ 28.7

 

Starting Current

Cooling

Max.

A

-

Heating

Max.

A

-

 

 

Power Supply Cable (included Earth)

 

No. x AWG

3C x 4.0

Wiring Connections

Power and Communication Cable

Outdoor ~ BD unit

No. x AWG

4C x 18

 

(included Earth)

 

 

 

 

 

Sum of Indoor Units Capacity

 

kBtu/h

73

Combination

Number of Indoor Units

 

EA

8

 

Number of BD Units

 

EA

2

Casing Color

 

 

-

Warm Gray

Dimensions

 

W x H x D

mm

950 × 1380 × 330

 

W x H x D

inch

37.4 x 54.3 x 13.0

 

 

Net Weight

 

 

kg (lbs)

97(213.8)

 

Type

 

-

Twin Rotary

Compressor

Model

 

Model x No.

GPT442MAA x 1

Motor type

 

-

BLDC

 

 

 

Motor Output

 

W x No.

4,000 (at 60Hz) x 1

 

Type

 

-

R410A

 

Precharged Amount

 

g (oz)

4,400 (155.2)

Refrigerant

Chargeless-Pipe Length

 

m (ft)

40 (131.2)

 

Additional Charging Volume

 

g/m (oz/ft)

20 (0.22)

 

Control

 

-

Electronic Expansion Valve

Refrigerant Oil

Type

 

-

FVC68D

Charged volume

 

cc x No.

1,300 x 1

 

 

Heat Exchanger

(Row x Column x Fins per inch) x No.

 

-

(2 x 32 x 14) x2

Fan

Type

 

-

Propeller

Air Flow Rate

 

m3/min(ft3/min) x No.

60 x 2

 

 

Fan Motor

Type

 

-

BLDC

Output

 

W x No.

124.2 x 2

 

 

Sound Pressure Level

Cooling

Rated

dB(A)

53

Heating

Rated

dB(A)

54

 

Sound Power Level

Cooling

Rated

dB(A)

69

Piping Connections

Liquid

Outer Dia.

mm(inch) x No.

Ø 9.52 (3/8)

Gas

Outer Dia.

mm(inch) x No.

Ø 19.05 (3/4)

 

 

Total Piping

Max.

m (ft)

145 (475.7)

Piping Length

Main Piping

Max.

m (ft)

55 (180.4)

Total Branch Piping

Max.

m (ft)

90 (295.3)

 

 

Each Branch Piping

Max.

m (ft)

15 (49.2)

Maximum Height

Outdoor Unit ~ Indoor Unit

Max.

m (ft)

30 (98.4)

Difference

Indoor Unit ~ Indoor Unit

Max.

m (ft)

15 (49.2)

Operation Range

Cooling

Min. ~ Max.

DB ( DB)

-10 (14.0) ~ 48 (118.4)

(Outdoor Temperature)

Heating

Min. ~ Max.

WB ( WB)

-18 (-0.4) ~ 18 (64.4)

Note:

1.All data are based on the following conditions:

- Cooling Temperature : Indoor 27°C(80.6°F) DB / 19°C(66.2°F) WB

Outdoor 35°C(95°F) DB / 24°C(75.2°F) WB

- Heating Temperature : Indoor 20°C(68°F) DB / 15°C(59°F) WB Outdoor 7°C(44.6°F) DB / 6°C(42.8°F) WB

-Piping Length : Interconnected Pipe Length = 5m

-Difference Limit of Elevation (Outdoor ~ Indoor Unit) is Zero.

2.Wiring cable size must comply with the applicable local and national code.

3.Due to our policy of innovation some specifications may be changed without notification.

4.Sound Level Values are measured at Anechoic chamber.

Therefore, these values can be increased(maximum 3dB(A)) owing to ambient conditions during opration.

Copyright ©2012 LG Electronics. Inc. All right reserved.

- 2 -

Only for training and service purposes

LGE Internal Use Only

 

2.List of Functions & Accessory

2.1List of Functions

Category

Function

A8UW54GFA0

[LMU540HV]

 

 

 

Defrost / Deicing

O

 

High Pressure Switch

X

 

Low Pressure Switch

X

Reliability

Phase protection

O

Restart Delay (3-minutes)

O

 

 

Self Diagnosis

O

 

soft start

O

 

Test Function

O

 

Auto operation(Artificial intelligence)

O

 

Wiring Error Check

O

 

Night Quiet Mode

O

Convenience

Peak Control

O

 

Mode Lock

O

 

Forced Operation

O

 

Auto Restart Operation

O

 

Central control(LGAP)

O

CAC Network

Dry contact

O

Function

PDI(Power Distribution Indicator)

O

 

PI485

O

Note :

O : Applied, X : Not applied

* Option : Model name & price are different according to options, and assembled in factory with main unit.

Accessory model name : Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate package.

2.2 List of Accessory

Device

 

A8UW54GFA0

 

[LMU540HV]

 

 

 

Simple Controller

PQCSB101S0

 

 

 

 

Function controller

PQCSB101S0 + PQCSC101S0

 

 

 

 

Function Scheduler

PQCSB101S0 + PQCSD130A0

 

 

 

 

AC Ez

PQCSZ250S0

 

 

 

Central Controller

AC Smart ll

PQCSW320A1E

 

 

Option Kit (SD card type)

PQCSE341A0 / PQCSE342A0

 

 

 

 

 

ACP(Advanced Control Platform)

PQCPA11A0E / PQCPB11A0E

 

 

 

 

AC Manager

PQCSS520A0E

 

 

 

 

PI485

PMNFP14A0/PMNFP14A1

 

 

 

 

DO(Digital Output) Kit

PQNFP00T0

 

 

 

BNU

LONWORKS Gateway

PQNFB16A1

(Building Network Unit)

BACnet Gateway

PQNFB17B0

 

 

 

 

Y branch

PMBL5620

 

 

 

Installation

Header branch

PMBL1203F0

 

 

Air Guide

X

 

 

 

 

 

BD Unit

PMBD3620, PMBD3630, PMBD3640

 

 

 

ODU Dry Contact

 

O

 

 

 

Low Ambient Kit

 

O (Logical operation)

 

 

 

Copyright ©2012 LG Electronics. Inc. All right reserved.

- 3 -

Only for training and service purposes

LGE Internal Use Only

 

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