Installation Instructions

25
Gas condensing boiler
close
open
CB A
1.
Open shut-off valves A and (if fitted)
B
.
2.
Connect fill hose to valve C and
open valve
C
.
3. Fill heating system [a removable fill-
ing loop with double check valve must
be used in UK] (system pressure
0.8 to 1.2 bar).
4.
Close valve C.
Gas condensing combi boiler
B
D
C
A
1.
Open shut-off valves A and (if fitted)
B
.
2.
Open valves C and D.
Note
The cold water supply must be
open.
3. Fill the heating system (system pres-
sure 0.8 to 1.2 bar).
4.
Close valves C and D.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service