installing the unit _27
ENGLISH
Piping examples
Branch with Y-joint
Branch with Y and Header joint
Branch with Header joint
One outdoor
unit installed
GF
h i j k l m n
b
a
c d e f g p
Multiple
outdoor units
installed
GF
h i j k l m n
b
a
c d e f g p
Items Examples Remarks
Max.
piping
length
Outdoor
~
Indoor unit
Piping
( Equivalent
piping)
200m (656´)
220m (722´)
Branch with Y joint
a+b+c+d+e+f+g+p ≤
200(220)m / 656(722)´
Equivalent pipe
length
Y-joint:0.5m,
Header:1m
Branch with Y joint and
Header joint
a+i+k≤200(220)m / 656(722)´
a+b+h≤200(220)m / 656(722)´
Branch with header joint a+i≤200(220)m / 656(722)´
Total piping
1000m (3281´)
Branch with Y joint
a+b+c+d+e+f+g+p+h+i+j+k+l+
m+n≤1000m / 3281´
Branch with Y joint and
Header joint
a+b+c+d+e+f+g+p+h+i+j+k≤
1000m / 3281´
Branch with Header joint
a+b+c+d+e+f+g+p+h+i≤
1000m / 3281´
Outdoor
~
Outdoor unit
Piping
10m (33´)
r
≤
10 (33), s
≤
10 (33), t
≤
10 m (33´)
Equivalent
piping
13m (43´)
r
≤
13 (43), s
≤
13 (43), t
≤
13 m (43´)
Level
difference
Outdoor ~
Indoor unit
Piping
50/40m
(164/131´)
H1
≤
50m (164´) / 40 m (131´ )
Indoor ~ Indoor
unit
Piping
15m (49´)
H2
≤
15 m (49´)
Outdoor ~
Outdoor unit
Piping
5m (16´)
H3
≤
5 m (16´)
Allowable
length
after branch
The first branch
~
the farthest
indoor unit
Piping
45m (148´)
b+c+d+e+f+g+p
≤
45 m(148´), i
≤
45m(148´)
Piping
90m (295´)
It needs to satisfy required conditions
Only apply to
DVM PLUS III
Required condition Example
The first branch joint ~
the farthest indoor unit
If the sum of pipe length (b+c+d+e+f+g+p) is over 45m (148´), (but not exceed :
90m/295´) increase pipe size of b,c,d,e,f,g (b,c,d,e,f,g : pipe 1 size up)
Total piping
length
If main pipe size is not increased,
a+bx2+cx2+dx2+ex2+fx2+gx2+h+i+j+k+l+m+n+p≤1000 m (3281´)
If main pipe size is not increased,
ax2+bx2+cx2+dx2+ex2+fx2+gx2+h+i+j+k+l+m+n+p≤1000 m (3281´)
Each Y-joint ~
each indoor
h,I,j,..p≤45 m (148´)
Between indoor
units
The difference between the distance of the outdoor unit to the farthest indoor
unit and the distance of the outdoor unit to the farthest indoor unit ≤ 45m (148´)
(a+b+c+d+e+f+g+p)-(a+h) ≤ 45 m (148´)
Distribution kit Model Remarks
Allowable
From distribution kit to indoor unit 3m (10´) MEV-A13SA / MEV-A16SA (For 1 indoor unit)
For wall mounted&
ceiling indoor unit
From distribution kit to indoor unit 20m (66´ )
MXD-A13K116A / MXD-A13K200A / MXD-A16K200A /
MXD-A22K200A (For 2 indoor units)
MXD-A13K216A / MXD-A13K300A / MXD-A16K213A /
MXD-A16K300A (For 3 indoor units)
DVM PLUS3_IM_E_31180-1.indd 27 2009-10-16 ソタネト 2:10:30