Table of Contents
Advertisement
Distributor Piping Type
Outdoor Unit
Max total length
Capacity
of all pipes
(kBtu/h
(Main + Branch
class)
pipes)
48
145(476)
54
145(476)
60
145(476)
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.
Max length
Max length
of
of
Main pipe
Branch
Branch pipe
(A+B+C)
pipes
55(180)
90(295)
55(180)
90(295)
55(180)
90(295)
Installation of Indoor, Outdoor Unit
Min length of
Max Elevation
Max length
each pipe
Between each
of each
(Main /
indoor unit and
Branch
pipes)
15(49)
3(10)
15(49)
3(10)
15(49)
3(10)
Branch Pipe
Distributor
C
Distributor
h1
B
Main Pipe
A
Unit : m(ft)
Max
Elevation
Combination
Between
outdoor unit
indoor
unit (kBtu/h
(h1)
(h2)
30(98)
15(49)
30(98)
15(49)
30(98)
15(49)
h2
Installation Manual 13
Max
of indoor
class)
65
73
83
Hide quick links:
Advertisement
Table of Contents
