LG LMN078HVT Installation Manual

Installation Manual 13
Installation of Indoor, Outdoor Unit
Distributor Piping Type
h1
C
Branch Pipe
Main Pipe
Distributor
Distributor
A
B
h2
Unit : m(ft)
Outdoor Unit
Capacity
(kBtu/h
class)
Max total length
of all pipes
(Main + Branch
pipes)
Max length
of
Main pipe
(A+B+C)
Max length
of
Branch
pipes
Max length
of each
Branch pipe
Min length of
each pipe
(Main /
Branch
pipes)
Max Elevation
Between each
indoor unit and
outdoor unit
(h1)
Max
Elevation
Between
indoor
(h2)
Max
Combination
of indoor
unit (kBtu/h
class)
48 145(476) 55(180) 90(295) 15(49) 3(10) 30(98) 15(49) 65
54 145(476) 55(180) 90(295) 15(49) 3(10) 30(98) 15(49) 73
60 145(476) 55(180) 90(295) 15(49) 3(10) 30(98) 15(49) 83
ENGLISH
Indoor unit Capacity (kBtu/h class)
Pipe Diameter
Unit : mm(inch)
Gas Liquid
7, 9, 12, 15 9.52(3/8) 6.35(1/4)
15(Console), 18, 24 12.7(1/2) 6.35(1/4)
36 15.88(5/8) 9.52(3/8)
Calculation method for total capacity index = sum up the capacity index of connected indoor units.
h Total capacity index = [Sum of all VAHU & Ceiling Concealed Duct (High Static) type indoor units capacity (if
any)] x 1.3 + Sum of all other indoor unit’s capacity
h The multiplier(1.3) is only necessary for calculation of combination ratio.
h For combinations where it contains one of below conditions, multiplier is 1.2 instead of 1.3. (See example 3)
1) ONE 24 k high static ducted unit/VAHU AND ONE 24 k high static ducted unit/VAHU
2) ONE 24 k high static ducted unit/VAHU AND ONE 36 k high static ducted unit/VAHU
CAUTION
Capacity is based on standard
length and maximum allowance length is on the basis of reliability.
!

LG LMN078HVT Specifications

General

Brand	LG
Model	LMN078HVT
Category	Air Conditioner
Language	English