Operation; Incremental Heating; Hydronic Balancing; Correction Factors For Water-Glycol Mixtures - oventrop Multidis SF Betriebsanleitung

Multidis SF

Operation

8. Operation
NOTICE
Damage to the screed due to wrong
temperatures!
Do not exceed the maximum screed
temperature prescribed by DIN near the
heating pipes. In cooling systems, the
temperature near the cooling pipes must not
reach the dew point.
!
Carry out incremental heating of cement
and calcium sulphate screed according
to DIN EN 1264-4.
!
Follow the manufacturer's specifications
for all screed materials.
!
Match the flow temperature to the
heating or cooling system.
8.1

Incremental heating

Check the function of the heated floor
construction during incremental heating.
Start incremental heating at the earliest:
•
21 days after laying of cement screed
•
7 days after laying of calcium sulphate
screed
Proceed as follows during incremental
heating:
1.
Open all valve inserts at the return
collector with the help of the protection
cap.
2.
Heat up with a flow temperature between
20 °C and 25 °C for at least 3 days.
3.
Heat up with the maximum design flow
temperature for at least 4 days.
Set the flow temperature via the heat
generator control.
24
Record incremental heating in a test
record. You can find the test record as a
copy template on our website.
•
Visit www.oventrop.com.
•
There, select the menu option
DOWNLOADS & SOFTWARE.
•
Proceed to BROCHURES.
•
Select SURFACE HEATING AND
COOLING COFLOOR.
•
You can find the test record in our
brochure "Cofloor Surface heating and
cooling systems/Systems with
distributor/collector".
8.2

Hydronic balancing

Carry out hydronic balancing by use of the
integrated flow measuring and regulating
devices.
8.3 Correction factors for water-glycol
mixtures
Take the correction factors of the
manufacturers of the antifreeze liquids into
consideration when setting the flow rate.

9. Maintenance

Regularly check the tightness and function of
the product and its connection points as part
of system maintenance.
10. Removal and disposal
When the product reaches the end of its
service life or has an irreparable defect, it must
be dismantled and disposed of in an
environmentally friendly manner or the
components must be recycled.
140645281-V01.02.2022