Atag Blauwe Engel S-HR 15, Инструкции по установке и обслуживанию

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Installation instructions S-HR series page 17
10 Filling and venting the boiler
and installation
Filling of the system is carried out in the normal way. In
order to read out the central heating water pressure the
electrical supply must be switched on.
The circulation pump will not begin to operate as long as
the operating lamps are off. The control display will show
a
indication, which means that the control is
signalling insufficient water pressure. If the installation is
filled and the water pressure rises then the water
pressure will automatically be shown with an alternating
text. If the water pressure rises to above 1.5 bar
then after a short “stop” text the indication will
appear, which means the water pressure is sufficient and
the boiler is ready for operation.
In order to be able to read out a constant water pressure
the Step key should be pressed in and in order to obtain
a constant
readout the Step key should be
pressed briefly again.
If the water pressure in the boiler becomes to high (>2,8
bar) a
text appears, by which means the burner
is switched off. After draining the water from the
installation, by which means the water pressure arrives
below 2,5 bar, the
text disappears and the burner
is activated.
In order to go from a read-out to a technical
readout the Step key should be pressed for 5
seconds. This read-out can be selected if the user
requires a technical read out. In order to return to the
read-out the Step key must be pressed again for
5 seconds.
10.1 Central heating system
To fill the central heating system use the filling and drain
valve provided.
Fill the system as follows.
-
Turn on the electrical supply and leave the
operational lamps off;
- Connect the filling hose to the cold water tap and let
it fill with water;
- Connect the filled filling hose to the filling and
draining valve and open this valve;
- Open the cold water tap and fill the installation
slowly;
- The boiler has an automatic vent which removes the
air which is present;
- Start venting the radiators and pipes at the lowest
point;
- Bring the installation to pressure (1.5 to 2 bar) after
all radiators and pipes have been vented;
- Close the cold water tap and the filling and draining
valve;
- Activate the automatic venting program by pressing
the pump key which means the pump lamp will be
illuminated. Allow the control to finish its venting
program. The pump will circulate a number of times
around the boiler as well as the central heating
installation.
Also, if a three-way valve, if present, this will be
adjusted to the boiler and central heating installation
a number of times. The pump will be stopped
regularly in order to allow possible present air to
escape.
- Check the water pressure and if required top up. The
working pressure in the installation should be bet-
ween 1.5 and 2 bar in cold state.
- After finishing the automatic venting program the key
can be switched off again.
It can take a while before all air has dis-
appeared from a filled installation. Especially
in the first week noises can be heard which
indicate the presence of air. The automatic air
vent in the boiler will make this air disappear,
by which means the water pressure can
reduce during this period and therefore top-
ping up with water will have to be done.
10.2 Hot water supply
Apply the water pipe pressure to the cylinder (open main
valve and/or stop valve of the safety group).
Vent the cylinder and the hot water installation by opening
a hot water tap. Leave the tap open for as long as required
until all air has disappeared from the cylinder and the
pipes and only water is flowing from the tap.