0020193966_04 ecoTEC exclusive Installation and maintenance instructions
27
9.10
Filling the heating installation
1
1.
Flush the heating installation through.
2.
Select the check programme
P.06
.
◁
The diverter valve moves to the mid-position, the
pumps do not run and the product does not switch
to heating mode.
Note
The cap on the automatic air vent
(1)
has
already been opened at the factory.
3.
Observe the information on treating heating water.
(
4.
Check all connections and the entire system for leaks.
5.
Connect the filling and drainage tap in the heating in-
stallation to a heating water supply, if possible with the
cold water valve, in accordance with the relevant stand-
ards.
6.
Open the heating water supply.
7.
Open all thermostatic radiator valves in the heating in-
stallation.
8.
If necessary, check that both service valves on the
product are open.
9.
Slowly open the filling and drainage tap so that the wa-
ter flows into the heating system.
10. Purge the lowest radiator until water flows out of the
purging valve without bubbles.
11. Purge all other radiators until the entire heating system
has been filled with water.
12. Close all purging valves.
13. Monitor the rising filling pressure in the heating installa-
tion.
14. Fill with water until the required filling pressure is
reached.
15. Close the filling and drainage tap and the cold water
valve.
9.11
Flushing the heating installation for the first
time ("cold")
Note
The complete heating system must be flushed
at least twice: Once with cold water and once
with hot water in accordance with the following
instructions.
1.
Check whether all thermostatic radiator valves and both
service valves on the product are open.
2.
Connect a hose to the drain valve that is located at the
lowest position in the heating system.
3.
Open the radiator valves and the drain valves so that
the water can drain quickly. Start at the next point in the
installation and open the purging valves on the radiators
so that the contaminated water can completely drain.
4.
Close the draining cocks.
5.
Refill the heating system with water.
6.
Check that the expansion relief valve of the heating
system is functioning correctly by turning the handle
on the valve.
7.
Check the pressure in the heating system and top up
with water if necessary.
8.
Close the filling valve and the cold water tap.
9.12
Purging the heating installation
1.
Select the check programme
P.00
.
◁
The product does not start up, the internal pump
operates intermittently and purges either the heating
circuit or the hot water circuit.
◁
The display shows the filling pressure of the heating
installation.
2.
Make sure that the filling pressure of the heating install-
ation does not fall below the minimum filling pressure.
– ≥
0.08 MPa (
≥
0.80 bar)
◁
At the end of the filling procedure, the filling pres-
sure of the heating installation should be at least
0.02 MPa (0.2 bar) above the counter-pressure
of the expansion vessel ("Exp") (P
Installation
≥
P
Exp
+
0.02 MPa (0.2 bar)).
3.
If there is still too much air in the heating installation at
the end of the check programme
P.00
, repeat the check
programme.
9.13
Gas inspection
9.13.1 Checking the air/flue pipe/flue gas
recirculation
1.
Check the flue gas installation is intact in accordance
with the latest gas safe technical bulletin and informa-
tion supplied in the installation instructions.
2.
For extended flue gas installations check for flue gas
recirculation using the air analysis point.
3.
Use a flue gas analyser.
4.
If you discover unusual levels of CO or CO
2
in the sup-
ply air, search for the leak in the flue system or for signs
of flue gas recirculation.
5.
Eliminate the damage properly.
6.
Check again whether the supply air contains any unusal
levels of CO or CO
2
.
7.
If you cannot eliminate the damage, do not start up the
product.
