Flushing New Installations And Installations Less Than 6 Months Old; Flushing An Existing Installation; Connecting The Heating Circuit; Connecting The Condensate Discharge Pipe - REMEHA Gas 120 ACE Series Installation And Service Manual

5 Installation
28 Gas 120 ACE
Important
If water treatment proves necessary, Remeha recommends the
following manufacturers:
Cillit
Climalife
Fernox
Permo
Sentinel
5.5.2 Flushing new installations and installations less than 6
months old
Before filling the heating installation, it is essential to remove any debris
(copper, caulking, soldering flux) from the installation.
1. Clean the installation with a powerful universal cleaner.
2. Flush the installation with at least 3 times the volume of water
contained in the central heating system (until the water runs clear and
shows no impurities).
5.5.3

Flushing an existing installation

Before filling the heating installation, it is essential to remove any sludge
deposits which have accumulated in the heating circuit over the years.
1. Remove any sludge from the installation.
2. Flush the installation with at least 3 times the volume of water
contained in the central heating system (until the water runs clear and
shows no impurities).
5.5.4

Connecting the heating circuit

Important
Abide by the information shown in the hydraulic diagrams.
The pipes are not provided.
Caution
The heating pipe must be mounted in accordance with the
provisions applicable.
If installing stop valves, position the fill/drain valve and the
expansion vessel between the stop valves and the boiler.
Always install a safety valve calibrated to a maximum of 4 bar
on the heating circuit. The safety valve can be connected to a
venting pot. The safety valve must not be used to drain the
heating circuit.
It is recommended to install a sludge collector on all
installations.
See
If fitting with a hydraulic kit (low-loss header or plate heat
exchanger), refer to the kit manual.
5.5.5

Connecting the condensate discharge pipe

Use a neutralisation station to achieve a pH value of more than 6.5 (in
accordance with prevailing regulations).
Discharge the condensates directly into the mains drainage system via a
siphon. In view of the acidity level (pH 2.5 to 3), only condensate
discharge pipes made from compatible plastic should be used.
7717202 - v03 - 24062019