16
COMMISSIONING
To stop the boiler : Press button (1)
Make sure that:
l
The boiler is connected to the electrical supply.
l
The gas service cock is open.
Then follow the instructions below :
Press the On/Off button (1)
Hab 264
1
I
O
1.5
bar
mode
0
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
The pressure must be between 1 and 2 bar. If not, the system must be filled by a competent person.
Appuyer sur
+
ou
-
pour ajuster la température
maximale souhaitée du circuit chauffage
60
°
C
Visualisation de la température demandée
Appuyer sur
mode
pour sélectionner la position
hiver
Température actuelle
dans le circuit chauffage
1.5
bar
10
°
C
Apparaît lorsque le
brûleur fonctionne
mode
mode
Adjusting the heating temperature
Setting to the WINTER position
(H hot water)
The actual temperature
of the heating system
Illuminates when
the boiler lights
Hab 261
Press + or - to adjust the maximum temperature
of the heating (38
°
C to 87
°
C)
Visual indication of set temperature
Lighting the boiler :
Press the
mode
button to select the
winter
symbol
1
3
2
l
Adjust heating temperature to maximum .
l
Check that any external controls, if fitted, are
calling for heat (set room thermostat to maximum).
l
Allow the temperature to rise to the maximum
value, with all radiator valves open. The tempera-
ture rise will cause release of the gases contained
in the water of the central heating system.
- Gases driven towards the boiler will be automati-
cally released through the automatic air vent.
- The gases trapped at the highest point of the sys-
tem must be released by bleeding the radiators.
On reaching maximum temperature, the boiler
should be turned off and the system drained as
rapidly as possible whilst still hot.
l
Refill system to a pressure of between 1 and 2
bar and vent as before.
l
Restart boiler and operate until a maximum tem-
perature is reached. Shut down boiler and vent
heating system. If necessary, top up heating sys-
tem and make sure that a pressure of 1 bar is indi-
cated when system is COLD.
Summary of Contents for ISOFAST F 28 E
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