6 Carrying out the hydraulics installation
16
Installation and maintenance instructions flexoTHERM exclusive 0020196687_03
A
A
B
B
2.
To remove a side casing, remove the four screws at the
front and the three screws at the back.
3.
Remove the side casing.
5.10
Removing the refrigerant circuit cover, if
required
A
B
1.
Remove the four screws.
2.
Pull the top of the refrigerant circuit cover forwards and
lift it out of the guide.
6
Carrying out the hydraulics
installation
Note
You can find the basic system diagrams in the
→
basic system diagram book.
1.
If you want to carry out active cooling using ground as
the heat source, make sure that the borehole/ground
collector is suitable for this purpose and observe the
national directives and laws. The use of near-surface
ground collectors for active cooling is prohibited.
2.
Flush the heating installation through thoroughly be-
fore connecting the heat pump in order to remove any
residue which could be deposited in the heat pump and
lead to damage.
3.
Install the connection cables free from mechanical
stress in accordance with the dimension and connection
drawings.
–
Position the pipe brackets for securing the heating
circuit and solar circuit piping so that they are not
too close to the heat pump in order to prevent noise
transmission.
–
If required, instead of pipe brackets, use cold insu-
lation brackets with additional rubber insulation and,
in some cases, reinforced hoses (armoured rubber
hoses).
–
To prevent excessive pressure losses, do not use
stainless steel corrugated pipes.
–
If required, use horizontal or right-angled connection
adapters from the accessories.
Note
The heat pump's compressor has two-fold vi-
bration insulation. This eliminates vibrations
in the refrigerant circuit that are inherent in
the system. However, under certain circum-
stances, residual vibrations may occur.
4.
Attach automatic purging valves to the heating installa-
tion.
6.1
Requirements for the heating circuit
In all heating installations, the minimum volume of circulating
heating water (35% of the nominal volume flow; see tech-
nical data table) must be guaranteed.
In heating installations that are equipped primarily with ther-
mostatic or electrically controlled valves, a constant and suf-
ficient flow through the heat pump must be ensured.
