GENO
®
-flushing compressor 1988 K
Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC
49
F
Rinsing of silted up floor heating systems
1 | General
Attention!
The prerequisite for flushing a heating system is a
sufficiently large free flow cross section. If the free flow cross section is
too small, the deposits which are loosened can block the cross section.
Attention!
Please note the maximum permissible operating pressure of
the heating system to be flushed as well as the additional load which
occurs due to the pulsatile flushing with the water/air mix, in particular
with the continuous blast air function.
Warning!
To secure the drinking water supply, a system divider must be
installed upstream of the flushing compressor.
2 | Preparation for rinsing
When flushing floor heating systems, filtered drinking water is fed in
from the withdrawal point via a system divider into the inlet flow of the
heating system and then drained off to the drainage system. A flushing
water calming tank is installed to ensure the steady and safe draining off
of flushing water. When flushing with a water/air mix, the flushing
compressor is additionally integrated between the system divider and
the floor heating system inlet flow.
Grünbeck recommends firstly completely emptying the floor heating
system and flushing it through with water in order to rinse out most of
the loose silt deposits. To improve the effectiveness of rinsing, the
heating water should be conditioned with GENO
®
-safe A whilst the
circulator pumps are still running. This enables improved infiltration,
detachment and dispersing of rust and silt deposits. After an exposure
time of approx. 6-8 weeks, flushing is performed again with water and
then with a mixture of water and air in order to discharge the
contamination in stages and prevent blockages.
If sensitive fittings are installed in the heating manifold, these must be
completely opened or removed as per the manufacturer's instructions.
If, according to the manufacturer's instructions, this is not possible or
permissible, the heating system must be directly connected and flushed
through. The description below assumes that flushing is possible via the
heating manifold when the heating system shut-off fitting is completely
open. The heating system to be flushed must be separated or blocked
off from other parts of the heating installation. Do not perform flushing
via the heating boiler.
