Design Technical Manual

Table Of Contents
IN THE CASE OF SET UP THE INDOOR UNIT IN BOTH THE UPPER
SIDE AND THE LOWER SIDE OF THE OUTDOOR UNIT
c
d
e
f
b
a
H
2
H
3
H
5
H
5
H
4
H
5
*4
Limitation:
ft. (m)
Diagram
Maximum allowable pipe
length (actual pipe length)
Between master outdoor unit and the farthest indoor
unit
541 (165) or less a + b + c
Between the rst separation tube and the farthest
indoor unit
197 (60) or less a
Total pipe length 3280 (1000) or less *1 Total
Between outdoor unit and outdoor unit branch kit 9 (3) or less c, d, e
Between the farthest outdoor unit to the rst outdoor
unit branch kit
39 (12) or less d + f, e + f
Maximum allowable
height di󰀨erence
Between indoor unit 49 (15) or less H2
Between outdoor unit 19-11/16in. (0.5) or less H3
Between RB unit 49 (15) or less H4
Between RB unit and indoor unit 16 (5) or less H5
¾
1 : Total pipe length is limited by the condition that total refrigerant amount should not exceed 231lbs. (105kg).
¾
3 : When cooling operation will be conducted at outdoor air temperature below 23°F (-5°C) ,the outdoor unit must be installed in a position
that is higher than indoor units or same level as indoor unit or 16’ (5m) lower than indoor unit.
¾
4 : Although "b" does not have limitation. Set to be 541’ (165m) or less in total pipe length of "a+b+c".
¾
5 : The pipe length is 25’ (7.5m) or more, between master outdoor unit and the nearest indoor unit.
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SYSTEM
DESIGN
SYSTEM
DESIGN