Samsung RD080HRXGB, Installation Manual

Page: 28 / 60

28_
installing the unit
installing the unit
REFRIGERANT PIPING WORKS
Piping examples

Heat Pump model
Branch with Y-joint Branch with Y and Header joint Branch with Header joint
One outdoor
unit installed
G F
h i j k l m n
b
a
c d e f g p
b
a
c d e f
g
h
i
Multiple
outdoor units
installed
G F
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 below
(220m below)
Branch with Y-joint
a+b+c+d+e+f+g+p
≤
200m
(220m)
Equivalent pipe
length
Y-joint : 0.5m,
Header : 1m
Branch with Y-joint and
Header joint
a+i+k
≤
200m (220m)
a+b+h
≤
200m (220m)
Branch with header joint a+i
≤
200m (220m)
Total piping 1000m below
Branch with Y-joint
a+b+c+d+e+f+g+p+h+i+j+k+l+m+n
≤
1000m
Branch with Y-joint and
Header joint
a+b+c+d+e+f+g+p+h+i+j+k
≤
1000m
Branch with
Header joint
a+b+c+d+e+f+g+p+h+i
≤
1000m
Outdoor ~
Outdoor unit
Piping 10m below r
≤
10, s
≤
10, t
≤
10m
Equivalent
piping
13m below r
≤
13, s
≤
13, t
≤
13m
Level
difference
Outdoor ~
Indoor unit
Piping 110m / 40m*
2)
H1
≤
110m/40m
Indoor ~ Indoor
unit
Piping 15m below H2
≤
15m
Outdoor ~
Outdoor unit
Piping 15m below H3
≤
5m
Allowable
length after
branch
The first branch
~
the farthest
indoor unit
Piping
45m below b+c+d+e+f+g+p
≤
45m, i
≤
45m
90m below
*1)
It needs to satisfy required conditions
Only apply to
DVM PLUS IV
( DVM PLUS
IV
HR exclusion)
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,(but not exceed : 90m)
Increase pipe size of b, c, d, e, f, g. (b, c, d, e, f, g : pipe 1 size up)
Total pipe
length size
If main pipe size is not increased,
a+bx2+cx2+dx2+ex2+fx2+gx2+h+i+j+k+l+m+n+p
≤
1000m
If main pipe size is increased,
ax2+bx2+cx2+dx2+ex2+fx2+gx2+h+i+j+k+l+m+n+p
≤
1000m
Each Y-joint ~
each indoor
h, i, j,...p
≤
45m
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 nearest indoor unit
≤
45m
(a+b+c+d+e+f+g+p) - (a+h)
≤
45m
*2) As an outdoor unit is located in a lower position than indoor unit, level difference is 40m. If outdoor unit is located in a higher position than indoor unit, level difference
is 110m or under. (If the level difference is higher than 50m, make a decision simulating by PDM kit installation Guide software whether the PDM kit should be
installed or not.) *PDM kit: Pressure Drop Modulation kit
Distribution kit Model Remarks
Allowable
From distribution kit to indoor unit 3m MEV-A13SA / MEV-A16SA ( For 1 indoor unit)
For wall-mounted &
ceiling indoor unit
From distribution kit to indoor unit 20m
MXD-A13K116A / MXD-A13K200A / MXD-A16K200A /
MXD-A22K200A ( For 2 indoor units)
MXD-A13K216A / MXD-A13K300A / MXD-A16K213A /
MXD-A16K300A ( For 3 indoor units)
*1) Required condition

The refrigerant amount of the system must be less than 100kg.
RD@@@HHXG_IM_E_33140-3.indd 28 2011-10-25 오후 2:57:51