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) 81
36(RED) 145(476) 55(180) 90(295) 15(49) 3(10) 30(98) 15(49) 48
42(RED) 145(476) 55(180) 90(295) 15(49) 3(10) 30(98) 15(49) 56
48(RED) 145(476) 55(180) 90(295) 15(49) 3(10) 30(98) 15(49) 65
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)
To calculate the connected total indoor unit nominal capacity, simply sum up the nominal capacities of all indoor units.
• For high static duct and vertical-horizontal air handling indoor units, a 1.3 multiplier must first be applied before
adding to the sum of other indoor units (when connected to an outdoor unit other than the LMU601HV,
LMU361HHV, LMU421HHV, LMU480HHV).
• When high static duct and / or vertical-horizontal air handling indoor units are the only connected indoor units,
the multiplier is 1.2.
CAUTION
Capacity is based on standard
length and maximum allowance length is on the basis of reliability.
!