LG MULTI V WATER II ARWN80LA2 Operation manual

0CVT0-03A (Replaces:0CVT0-02A)
R410A 50/60Hz

LG Airconditioners Product Data
• Introduction
• General Information
• Outside Units
•
Installation of Outside Units
• Special Guide
(R410A)

Introduction
Introduction
1. Preface
R410A Model
is the most favored choice when there is a need for precise air conditioning of relatively big pro-
jects extending from Multi-Room structure to big commercial places. We have a big line up, that offers wider
flexibility of model selection.
Equipped with inverter technology and long piping installation, the product matches well if one talk about opti-
mum power consumption in high rise buildings. Add on capacity feature makes it easy to upgrade the existing
capacity at any time.
With the growing concern about environment preservation, comes with R410A refrigerant which is
environment friendly and thus our system is a high technology and environment friendly product.
Unique refrigerant flow and electronic circuit control gives this system an unique capability to work in
extreme/abnormal working conditions making our customer feel great about their decision of selecting
LG as their first choice.
This publication provides a detailed and in depth information about the design and installation of .
We hope that with this information you would become an expert of your system.
Air-Conditioning Company

Introduction
2. Step by Step System Selection Process
(1) Calculate or obtain the maximum heat load for the area(s) to be air conditioned
Decide the indoor unit specifications
Decide the outside unit specifications
Capacity coefficient factor
Decide the air velocity and temperature distributions
Decide the cooling tower specifications
Decide the boiler specifications
Decide the water pump specifications
(2)
(3)
(4) Selection of the control system
Control wiring method
Description of devices
Selection of refrigerant pipe joints and headers
Selection of water pipe joints and headers
(5) Electrical wiring
Electric characteristics
Field wiring
• Air conditionerss should not be installed in areas where corroslve gases, such as acid or
alkaline gas, are produced.

General information
General Information
1. Model Names
2. External Appearance
3. Combination of Outside Units
4. Nomenclature
5. Outside Units information

1. Model Names
General information 1
1
Power Supply 8HP 10HP 16HP 18HP
3Ø, 380-415V, 50Hz ARWN80LA2 ARWN100LA2 ARWN160LA2 ARWN180LA2
3Ø, 380V, 60Hz
Power Supply 20HP 24HP 26HP 28HP
3Ø, 380-415V, 50Hz ARWN200LA2 ARWN240LA2 ARWN260LA2 ARWN280LA2
3Ø, 380V, 60Hz
Power Supply 30HP 40HP 50HP 60HP
3Ø, 380-415V, 50Hz ARWN300LA2 ARWN400LA2 ARWN500LA2 ARWN600LA2
3Ø, 380V, 60Hz

General information
2
2
2. External Appearance
ARWN80LA2
ARWN100LA2
ARWN160LA2
ARWN180LA2
ARWN200LA2
ARWN240LA2
ARWN260LA2
ARWN280LA2
ARWN300LA2
ARWN400LA2
ARWN500LA2
ARWN600LA2

3. Combination of Outside Units
General information 3
3
System
Capacity
(HP)
8 1 1 - - - -
10 1 - - - 1 -
16 1 - 1 - - -
18 1 - - 1 - -
20 1 - - - - 1
24 2 1 1 - - -
26 2 1 - 1 - -
28 2 1 - - - 1
30 2 - - - 1 1
40 2 - - - - 2
50 3 - - - 1 2
60 3 - - - - 3
Number of Units Module(HP)
816181020

General information
4
4
4. Nomenclature
Serial Number
A: Basic Function
Electrical Ratings
L: 3Ø, 380 - 415V, 50Hz / 3Ø, 380V, 60Hz
Total Cooling Capacity in Horse Power(HP) unit
EX) 8HP➞'80', 10HP➞'100'
Indicates that this is Water System
Outside Unit using the R410A
Combination of Inverter Type and
Cooling Only or Heat Pump
N: Inverter and H/P
ARW N L100 A 2

General information 5
5
5. Outside Units Information
Power Supply: Outside Unit (3Ø, 380 - 415V, 50Hz / 3Ø, 380V, 60Hz)
System Capacity HP
Model Name
Product Refrigerant Charge kg
CF(Correction Factor) kg
Maximum Connectable No. of Indoor Units
Net Weight kg
lb
Dimensions(WxHxD) mm
inch
Refrigerant Liquid mm(inch)
Connecting Pipes Gas mm(inch)
Water Inlet mm
Connecting Pipes Outlet mm
Drain Outlet mm
81016
ARWN80LA2 ARWN100LA2 ARWN160LA2
7.3 7.3 8.8
---
13 16 26
170 170 238
374.8 374.8 524.7
772 x 1,120 x 547 772 x 1,120 x 547 772 x 1,120 x 547
30.4 x 44.1 x 21.5 30.4 x 44.1 x 21.5 30.4 x 44.1 x 21.5
9.52(3/8) 9.52(3/8) 12.7(1/2)
19.05(3/4) 22.2(7/8) 28.58(1 1/8)
PT32A PT32A PT40A
PT32A PT32A PT40A
20 20 20
•Ratio of the running Indoor Units to the Outside: Within 10 ~ 100%
•A combination operation over 100% cause to reduce each indoor unit capacity.
■Combination Ration(50~200%)
Notes:
* We can guarantee the operation only within 130% Combination.
If you want to connect more than 130% combination, please contact us and discuss the require-
ment like below.
1) If the operation of indoor unit is more than 130%, low airflow operation is recommended in all
the indoor units.
2) If the operation of indoor unit is more than 130%, additional refrigerant is needed according to
the headquarter guidance.
3)Over 130%, capacity is same as capacity of 130%, Same remark is valid for power input.
CAUTION
Outside Number Connection Capacity
Single outside units 200%
Double outside units 160%
Triple outside units 130%
System Capacity HP
Model Name
Product Refrigerant Charge kg
CF(Correction Factor) kg
Maximum Connectable No. of Indoor Units
Net Weight kg
lb
Dimensions(WxHxD) mm
inch
Refrigerant Liquid mm(inch)
Connecting Pipes Gas mm(inch)
Water Inlet mm
Connecting Pipes Outlet mm
Drain Outlet mm
18 20 24
ARWN180LA2 ARWN200LA2 ARWN240LA2
8.8 8.8 8.8+7.3
---
29 32 39
238 238 238+170
524.7 524.7 524.7+374.8
772 x 1,120 x 547 772 x 1,120 x 547 (772 x 1,120 x 547) x 2
30.4 x 44.1 x 21.5 30.4 x 44.1 x 21.5 (30.4 x 44.1 x 21.5) x 2
12.7(1/2) 12.7(1/2) 15.88(5/8)
28.58(1 1/8) 28.58(1 1/8) 34.9(1 3/8)
PT40A PT40A PT40A + PT32A
PT40A PT40A PT40A + PT32A
20 20 20