Samsung AEN080YDEHA, Installation Manual

Page: 17 / 49

E-
17
ENGLISH
The water volume and expansion vessel pressure
The unit is equipped with an expansion vessel of 8 litres which has a default pre-pressure of 1 bar.
To ensure correct operation of the unit, the pre-pressure of the expansion vessel might need to be adjusted
and the minimum and maximum water volume must be checked.
X
To secure enough water flow rate, set water pump
speed as “Max.”.
X
The standard pressure drop of the unit is
30~35 kPa.
X
When it’s needed to get additional E.S.P(external
pressure drop) according to field piping works,
connect additional pumps(RS25/8) on the field
piping line in series.
X
If the pressure loss of total system is over 54kPa,
additional water pump should be installed in
series.
Otherwise, the water flow rate might be decreased,
causing insufficient heating or cooling.
X
Pre-pressure is adjusted by the total water volume.
<-1.>
Hy
dra
u
lic
Head
Loss(
k
P
a
)
Water Flow Rate
Head
ma
x.
Norminal
54 kPa
46 LPM
Operating range
Water Flow Rate (LPM)
H (k
Pa
)
1# pump
4# pump
1#+4# in series
Head
Norminal
In Series
46 LPM
54 kPa
108 kPa
2.5
2.0
1.5
1.0
0.5
0.0
150 200 250 300 350
Total water volume(ℓ)
Pr
e
-p
re
ssu
re
(b
ar
)
Operation range