System Construction Conditions; Refrigerant Piping - Fujitsu AB12 Service Manual

1-2 SYSTEM CONSTRUCTION CONDITIONS

1-2-1 REFRIGERANT PIPING

COOLING ONLY / HEAT PUMP MODEL
a+e 100m (actual pipe length)
Difference in height between outdoor unit and indoor units (H1) maximum 50m.
(For the outdoor unit stated below:maximum 40m)
Difference in height between adjacent indoor units (H2) maximum 15m.
e 40m (actual pipe length)
a 70m (actual pipe length)
a+b+c+d+e
Outdoor
unit
H1
H2
a+b+c+d+e+f
Difference in height between outdoor unit and indoor units (H1) maximum 50m.
Difference in height between adjacent indoor units (H2) maximum 15m.
From outdoor unit to first separation tube a 70m (actual pipe length)
b+c+d+e+f
a+b+c+d+e+f+g+h+i+j+k
Outdoor
unit
a
a+g+i
Difference in height between outdoor unit and indoor units (H1) maximum 50m.
Difference in height between adjacent indoor units (H2) maximum 15m.
a 70m (actual pipe length)
g+i 40m b+f
a+b+c+d+e+f+g+h+i
Outdoor
H1
200m (total pipe length)
a
b c
Indoor
Indoor Indoor
unit unit
100m (actual pipe length)
40m (actual pipe length)
200m (total pipe length)
b c d
g h i
Indoor Indoor Indoor
unit unit unit
100m a+b+f 100m (actual pipe length)
40m (actual pipe length)
200m (total pipe length)
unit
a
g
d
e
unit
Indoor
unit
e
j k
Indoor Indoor
unit unit
H2
Indoor
unit
b
c
i
h
Indoor
unit
Indoor
unit
Indoor
unit
– 7 –
H1
f
d e
Indoor Indoor Indoor
unit unit
f
unit H2