Commissioning; Filling, Bleeding And Leak Testing Of The Installation; Protection Cap; Operation - oventrop Multidis SFQ Notice D'utilisation

Commissioning

7. Commissioning
7.1 Filling, bleeding and leak
testing of the installation
Before commissioning, you have to fill and
bleed the installation.
1. Close the ball valves in front of the flow
distributor and the return collector.
2. Fully open the QM valve inserts.
3. Turn the handwheel to position 5 with the
help of the presetting key. The G ¾ con-
nection of the fill and drain cock is suitable
for standard DN 15 hoses.
4. Close all QM valve inserts with the help of
the protection caps, except for the valve
insert of the circuit to be filled.
5. Flush and fill each individual circuit, one
after another, via the fill and drain cock at
the return collector up to the fill and drain
valve at the flow distributor.
6. Carry out a leakage test according to DIN
EN 1264.
Record the tightness and the test
pressure in an inspection record.
You can find the inspection record as
sample form on our homepage.
f Visit www.oventrop.com.
f Select the menu option "Prod-
ucts".
f Proceed to "Brochures".
f Select "Surface heating and
cooling Cofloor".
f You can find the leakage test
record in the brochure "Cofloor
Surface heating and cooling sys-
tems - Systems with distributor/
collector".
Bleeding during the filling process
and even during operation is carried
out via the fill and drain cocks.

7.2 Protection cap

The QM valve insert of the Multidis SFQ
heating circuit distributor/collector is supplied
with a plastic protection cap (see Illust. 2 on
24
page 19). It protects the valve stem and can
be used for manual setting of the valve stroke
during the construction period.
f Turning clockwise
Z The valve insert closes and
the heat supply is reduced
f Turning anticlockwise
Z The valve insert opens and
the heat supply is increased
8.

Operation

NOTICE
Damage to the screed due to
wrong temperatures
f Carry out the incremental heating
test of concrete and calcium sul-
phate screed in accordance with
DIN EN 1264-4.
f Observe the instructions of the
screed manufacturer.
f Adapt the flow temperature to the
surface heating/cooling system.
Do not exceed the screed temperature
specified as per DIN 1264-4 near the
heating pipes. In surface cooling sys-
tems, the temperature near the cooling
pipes must not reach the dew point.

8.1 Incremental heating test

Check the function of the heated floor con-
struction during the incremental heating test.
Start the incremental heating test at the earli-
est:
• 21 days after laying of concrete screed
• 7 days after laying of calcium sulphate
screed
Proceed as follows during the incremental
heating test:
1. Open all valve inserts at the return collector
with the help of the protection cap.
2. Start with a flow temperature between
20 °C and 25 °C for at least 3 days.
Multidis SFQ
140495281-V01.12.2020