POWERSTREAM Ascari -
p. 18 -
2.7.1 Power selection
The boiler is supplied as a 12
kW
modulating boiler but can be reduced to 10, 8, 6 or 4k
W
by disconnecting
individual elements.
* Remove blue connectors between power terminal and elements
according to drawing.
ex-work
R : Red
Bl : Black
W : White
B : Blue
12 kW
10 kW*
8 kW*
6 kW*
4 kW*
R
B
B
B
B
W
Bl
W
Bl
R
B
B
R
B
B
B
W
Bl
W
Bl
R
B
B
R
B
B
B
W
Bl
W
Bl
R
B
R
B
B
W
Bl
W
Bl
R
B
R
B
B
W
Bl
W
Bl
R
View from bellow
2.8 - commissioning & Testing
Water Treatment, Cleansing and Flushing the Heating System
NOTE:
British Standard BS7593: 1992 stresses the importance of cleansing and flushing of the system to
ensure it continues to run efficiently with the minimum of maintenance necessary.
Redring
fully support
s this
professional approach and recommend
s
that the system is cleansed with an effective chemical cleanser and
protected long term with a suitable inhibitor. Such products are available from Fernox and Sentinal.
•
Check the pressure of the expansion vessel, this should be factory set to 1bar (0.1MPa).
•
The heating system should be filled using the approved installed filling loop. Ensure all radiator valves are
open. The initial system pressure when cold should be between 1.0 (0.lMPa) and 1.5bar (0.15MPa).
•
Once filled check the system for leaks.
•
Open the drain cock and drain the system fully.
