Tabla de contenido
Publicidad
Idiomas disponibles
Idiomas disponibles
Allowable length of refrigerant pipes and allowable height
difference between units
Outdoor unit
A
B
C
Header
Follower
Follower
Height
unit
unit
unit
difference
between
outdoor
units
H3 ≤ 5 m
La
Lc
Lb
LA
LB
Outdoor unit connection piping kit
(For linking of outdoor units)
The longest piping between outdoor units:
L0 ≤ 25 m
Height
difference
between
outdoor
and indoor
units:
H1 ≤ 70 m
Indoor unit connecting
pipe
First branching
section
Indoor unit
L3
The longest piping length from the first branch: Li ≤ 90 m
Y-shaped
branching joint
f
Indoor unit
27-EN
1114208701-1 EN PT ES.indb 14
1114208701-1 EN PT ES.indb 14
D
Follower unit
Ld
Branching header
Y-shaped branching
joint
L7
a
b
c
d
e
The longest piping length: L ≤ 235 m
L6
L5
L4
i
h
j
g
(j)
System restriction
O
u
d t
o
r o
u
n
t i
c
o
m
b
n i
t a
o i
n
T
o
a t
c l
a
p
a
c
y t i
f o
o
u
d t
o
r o
u
n
s t i
n I
d
o
r o
u
n
t i
c
o
n
n
e
t c
o i
n
Total capacity of indoor units
(varies depending on the height difference between
indoor units.)
Cautions for installation
Set the outdoor unit first connected to the bridging pipe to the indoor units as the header unit.
Install the outdoor units in order of their capacity codes: A (header unit) ≥ B ≥ C ≥ D
When connecting gas pipes to indoor units, use Y-shaped branching joints to keep pipes level.
When piping to outdoor units using Outdoor unit connection piping kits, intersect the pipes to the outdoor unit
and those to indoor units at a right angle as shown in figure 1 on "6. Installation of the outdoor unit". Do not
connect them as in figure 2 on "6. Installation of the outdoor unit".
Allowable length and allowable height difference of refrigerant piping
Total extension of
pipe (liquid pipe,
real length)
Farthest piping length L (*1)
Main piping length
Pipe length
Farthest equivalent piping length from the first branch Li
(*1)
Farthest equivalent piping length between outdoor units L0
(*1)
Maximum equivalent piping length of pipes connected to
outdoor units
Maximum real length of pipes connected to indoor units
Maximum equivalent length between branching sections
Height
difference
between
Height between outdoor and indoor
indoor units:
units H1
H2 ≤ 40 m
Height
difference
H
e
g i
t h
b
e
w t
e
e
n
n i
d
H
e
g i
t h
b
e
w t
e
e
n
o
u
*1: Farthest outdoor unit from the first branch: (D), farthest indoor unit: (j)
*2: If the total capacity of outdoor units is 46HP or more, make the equivalent length 70m (real length 50m) or less.
*3: Make the difference 65m or less if the height difference between outdoor and indoor units (H1) is more than 3m.
*4: Make the difference 50m or less if the height difference between indoor units (H2) is more than 3m.
*5: Make the difference 30m or less if the height difference between indoor units (H2) is more than 3m.
– 14 –
U
p
o t
4
u
n
s t i
U
p
o t
4
8
H
P
U
p
o t
4
8
u
n
s t i
H2 ≤ 15m
135% of outdoor units' capacity
15m < H2
105% of outdoor units' capacity
Allowable
Item
value
Less than 34HP or
Less than 96kW
300m
less
LA + LB + La + Lb + Lc + Ld + L1 + L2 + L3 + L4
+ L5 + L6 + L7 + a + b + c + d + e + f + g + h + i + j
96kW or more
34HP or more
500m
Equivalent length
235m
LA + LB + Ld + L1 + L3 + L4 + L5 + L6 + j
Real length
190m
Equivalent length
120m (*2)
Real length
100m (*2)
90m (*3)
25m
LA + LB + Ld (LA + Lb, LA + LB + Lc)
1
0
m
30m
50m
Upper outdoor
7
0
m
* (
) 4
units
Lower outdoor
4
0
m
* (
) 5
units
o
r o
u
n
s t i
H
2
4
0
m
d t
o
r o
u
n
s t i
H
3
5
m
Pipes
L1
L3 + L4 + L5 + L6 + j
L
, a
L
, b
L
, c
L
d
a, b, c, d, e, f, g, h, i, j
L2, L3, L4, L5, L6, L7
–
–
–
–
EN
ID
ID
28-EN
02/27/14 1:39 PM
02/27/14 1:39 PM
Hide quick links:
Publicidad
Tabla de contenido
Solución de problemas
