General Pipe Connections; Expansion Vessel; Volume Expansion - Alpha-InnoTec HT 6Split Installation And Operating Manual

4 Pipe connections

General pipe connections

Pipe installation must be carried out in accordance
with current norms and directives.
The pipe dimension should not be less than the recom-
mended pipe diameter according to the table below.
However, each system must be dimensioned individu-
MINIMUM SYSTEM FLOWS
The installation must be dimensioned at least to man-
eration, see table.
Minimum
heat pump
defrosting
(100%
pump
speed (l/s)
HT 6Split/
0,19
L6Split
HT 12Split/
0,19
L8Split
HT 12Split/
0,29
L12Split
IMPORTANT
machine and lead to malfunctions.
The system can cooperate with a low- and medium
temperature heating system. Recommended temper-
ature of the heating medium at minimum designed
outdoor temperature DOT must not exceed 55°C on
supply, and 45 °C on return circuit from the heating
system, whereas HT 12Split / HT 6Split can achieve
ule or another peak heat source.
safety valve, and must be secured against freezing.
recommend the installation of HT 12Split / HT 6Split
as close to the heat pump as possible.
The HT 12Split / HT 6Split module is not equipped with
door module to make future maintenance easier.
The HT 12Split / HT 6Split module can be connected
to the central heating, cooling, and domestic hot wa-
ter installation. Install the supplied safety valve and
the manometer.
HT 6Split
HT 12Split
Minimum Minimum
recom- recom-
mended mended
pipe pipe
dimension dimension
(DN) (mm)
20 22
20 22
20 22
IMPORTANT
valve must be installed.
IMPORTANT
equipped with air vents.
IMPORTANT
the indoor module is connected so that
any debris cannot damage component parts.
-
IMPORTANT
(SF1) in the controller in position "I" or " ". The com-
module can be damaged.

Expansion vessel

HT 6Split / HT 12Split is
equipped with a pressure
expansion vessel of
10 litres. The pre-pres-
sure of the pressure ex-
pansion vessel must be
dimensioned according to
the maximum height (H)
between the vessel and
the highest positioned
pre-pressure of 0.5 bar (5
mvp) means a maximum
ence of 5 m. The maximum system volume excluding
the boiler is 220 litres at the above pre-pressure.
Minimum volume of the heating system
-
LSplit
Minimum volume of the heating system
during heating / cooling

Volume expansion

-
pump, and many heating systems do not have this
volume. To prevent operational problems, the volume
IMPORTANT
-
tem, use a hydraulic coupling or open heating loops.
installation".
CAUTION
The diaphragm expansion vessel at the domestic hot
water installation is not required. It is, however, required
to install a safety valve with opening pressure of 3 bar.
-
6 8 12
50l 80l 100l
Chapter 4 | Pipe connections
-
9