LG LMU24CHV User Manual
Multi Air Conditioner
SVC MANUAL(Exploded View)
MODEL : A3UW24GFA0
[LMU24CHV]
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com
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Copyright ©2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. Specification
Note:
1. All data are based on the following conditions:
-
Cooling Temperature : Indoor 26.7°C(80°F) DB / 19.4°C(67°F) WB
Outdoor 35°C(95°F) DB / 23.9°C(75°F) WB
- Heating Temperature : Indoor 21.1°C(70°F) DB / 15.6°C(60°F) WB
Outdoor 8.3°C(47°F) DB / 6.1°C(43°F) WB
- Piping Length : Interconnected Pipe Length = 7.5m
- 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.
*: This temperature(-20 ~ -10℃) can be operated only when Low
Ambient Kit is installed.
Outdoor unit
A3UW24GFA0
[LMU24CHV]
Testing Combination
AMNW09GDBL1 * 2EA + AMNW07GDBL1 * 1EA
Capacity
Cooling
Min.~Rated~Max. kW
5.86
Min.~Rated~Max. Btu/h
20,000
Heating
Min.~Rated~Max. kW
7.0
Min.~Rated~Max. Btu/h
24,000
Power Input
Cooling Min.~Rated~Max. kW
1.48
Heating Min.~Rated~Max. kW
1.8
EER Btu/Wh
13.5
SEER / HSPF -
21.7/10.6
Power Supply V , Ø , Hz 208/230, 1, 60
Running Current
Cooling Min.~Rated~Max. A 6.7
Heating Min.~Rated~Max. A 8.1
Starting Current
Cooling Max. A Heating Max. A -
Wiring Connections
Power Supply Cable (included Earth) No. x mm2(AWG) 3C x 2.5 (12)
Power and Communication
Cable (included Earth)
Outdoor ~ BD unit No. x mm2(AWG) -
Combination
Sum of Indoor Units Capacity kBtu/h 33
Number of Indoor Units EA 3
Number of BD Units EA -
Casing Color - Warm Gray
Dimensions
W x H x D mm 870 × 655 × 320
W x H x D inch 34-1/4 x 25-25/32 x 12-19/32
Net Weight kg (lbs) 45 (99.2)
Compressor
Type - Twin Rotary
Model Model x No. GKT176MA x 1
Motor type - BLDC
Motor Output W x No. 1,500 (at 60Hz) x 1
Refrigerant
Type - R410A
Precharged Amount g (oz) 1,800 (63.5)
Chargeless-Pipe Length m (ft) 22.5 (73.8)
Additional Charging Volume g/m (oz/ft) 20 (0.22)
Control - Electronic Expansion Valve
Refrigerant Oil
Type - FVC68D
Charged volume cc x No. 670 x 1
Heat Exchanger (Row x Column x Fins per inch) x No. - (2 x 28 x 14) x 1
Fan
Type - Propeller
Air Flow Rate m3/min x No. 50 x 1
Fan Motor
Type BLDC
Output W x No. 85.4 x 1
Sound Pressure Level
Cooling Rated dB(A) 50
Heating Rated dB(A) 53
Sound Power Level Cooling Rated dB(A) 62
Piping Connections
Liquid Outer Dia. mm(inch) x No. Ø 6.35 (1/4) x 3
Gas Outer Dia. mm(inch) x No. Ø 9.52 (3/8) x 3
Piping Length
Total Piping Max. m (ft) 75(246.0)
Main Piping Max. m (ft) Total Branch Piping Max. m (ft) Each Branch Piping Max. m (ft) 25 (82.0)
Maximum Height Difference
Outdoor Unit ~ Indoor Unit Max. m (ft) 15 (49.2)
Indoor Unit ~ Indoor Unit Max. m (ft) 7.5 (24.6)
Operation Range
(Outdoor Temperature)
Cooling Min. ~ Max. ℃ DB (℉ DB) -18(-0.4) * ~ 48 (118.4)
Heating Min. ~ Max. ℃ WB (℉ WB) -20 (-4.0) ~ 18 (64.4)
2. List of Functions & Accessory
Note :
O : Applied, × : 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
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Copyright ©2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2.1 List of Functions
Device
A3UW24GFA0
[LMU24CHV]
Central Controller
Simple Controller X
Function controller X
Function Scheduler X
AC Ez PQCSZ250S0
AC Smart ll PQCSW320A1E
Option Kit (SD card type) PQCSE341A0 / PQCSE342A0
ACP(Advanced Control Platform) PQCPA11A0E / PQCPB11A0E
AC Manager X
PI485 PMNFP14A0 / PMNFP14A1
DO(Digital Output) Kit PQNFP00T0
BNU
(Building Network Unit)
LONWORKS Gateway PQNFB16A1
BACnet Gateway PQNFB17B0
Installation
Y branch X X X
Header branch X
Air Guide X
ODU Dry Contact X
Low Ambient Kit O (Logical operation)
Function
A3UW24GFA0
[LMU24CHV]
Reliability
Defrost / Deicing O
Phase Protection X
Restart Delay(3-minutes) O
Self Diagnosis O
Soft Start O
Test Function X
Convenience
Wiring Error Check O
Night Quiet Mode O
Mode Lock O
Peak Control O
Forced Operation O
CAC Network Function
Central Control(LGAP) O
PDI(Power Distribution Indicator) O
PI485 O
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