Commissioning; Filling, Bleeding And Leak Testing; Preliminary Work For Incremental Heating Test; Illustr. 7: "Unibox T Rtl Vario" With Elbow Brackets - oventrop Unibox T RTL vario Betriebsanleitung

Commissioning

4. Use the enclosed elbow brackets (see 1.2
on page 27) to align and fix the "Unibox
T RTL vario" in the pipe conduit unit.
Illustr. 7: "Unibox T RTL vario" with elbow
brackets
5. Connect the pipework of the surface
temperature balance circuit to the "Unibox
T RTL vario".
Observe the marked flow direction.
6. Establish a connection pipe between the
"Unibox T RTL vario" and the two pipe
heating system return.
7. Commissioning
7.1 Filling, bleeding and leak
testing
1. Fill the heating system.
2. Bleed the heating system (e.g. using the
valve on the "Unibox T RTL vario").
3. Carry out a leakage test in accordance with
DIN EN 1264.
4. Reposition the protection cover of the
"Unibox T RTL vario" (see Illustr. 1 on
page 27) and the front cover of the pipe
conduit unit.
34

Illustr. 8: Positioning the protection cover

7.2 Preliminary work for
incremental heating test
Carry out an incremental heating test to check
the correct function of the surface temperature
balance.
NOTICE
Damage to the screed as a re-
sult of incorrect temperatures!
f Carry out incremental heating tests
of concrete and calcium sulphate
screed according to DIN EN 1264-
4.
f Observe the instructions of the
screed manufacturer.
f Adapt the flow temperature to the
surface temperature balance.
f Do not exceed the screed tem-
peratures near the heating pipes
specified as per DIN EN 1264-4.
Apply screed suitable for heating systems after
plastering.
Start the incremental heating test at the earli-
est:
• 21 days after laying of concrete screed
• 7 days after laying calcium sulphate screed
Unibox T RTL vario
102273480-V01.07.2019