Specifications

18
We reserve the right to modify technical specifications without prior notice.
83051400aUK © Alpha-InnoTec GmbH
Flushing, lling and bleeding
the system
waterqualityoFtheFillandadditionalwater
inhotwaterheatingsystems
aCCordingtoVdi2035partiandii
Use of modern, energy-efcient heat pump systems is
becoming increasingly widespread. Their ingenious tech-
nology enables these systems to achieve very good ef-
ciencies. The decreasing space available for heat gener-
ators has led to the development of compact units with
increasingly smaller cross-sections and high capacities.
This means the complexity of the systems and the ma-
terial diversity are also increasing, which plays an impor-
tant role especially in their corrosion behaviour. Alpha
InnoTec ensures continuous technological advances, but
all these technical renements require the system to be
operated with correctly lled heating water. The heating
water not only affects the efciency of the system, but
also the life of the heat generator and the heating com-
ponents of a system.
The guide values of VDI 2035 Part I and Part II must
therefore be complied with as minimum requirements
for proper operation of the systems. Our practical expe-
rience has shown that the safest and most trouble-free
running of the systems is achieved with so-called low-
salt operation.
VDI 2035 Part I gives important information and recom-
mendations regarding scaling and its prevention in heat-
ing and domestic hot water heating systems.
VDI 2035 Part II primarily deals with the requirements
for reducing heating water corrosion in hot water heat-
ing systems.
prinCiplesoFpartiandpartii
The occurrence of scaling and corrosion damage in hot
water heating systems is low, if
- proper planning and commissioning is carried out
- the system is closed in corrosion terms
- adequately dimensioned pressurising is integrated
- the guide values for the heating water are complied
with
- and regular servicing and maintenance are carried out.
A system log should be kept, in which the relevant plan-
ning data is entered (VDI 2035).
NOTICE
In order to enable unhinging of the electric
switch cabinet in the event that customer ser-
vice is necessary, the control and sensor wires
in the heat pump must have an excess length of
about 15 cm.
Install control and sensor wires in a conduit as far
as where they enter the building and from there on
to the heating and heat pump regulator...
Connect control and sensor wires to the heating
and heat pump regulator according to the terminal
diagram and the circuit diagrams for the respective
model...
”Terminal diagrams” and “Circuit diagrams” for
the respective model.
Operating manual of the heating and heat pump
regulator.
Seal empty pipes on unit side...
Screw facing panels onto the heat pump...
Place lower facing panels diagonally into the frame,
close at top and fasten with quick-release screws...
The unit is now closed.