Further details regarding the individual steps
B
Commissioning, inspection, maintenance
4. Open shut-off valves A and (if instal-
A
led) B.
5. Fill the heating system via an external
filling facility. (Minimum system pres-
sure > 0.8 bar).
Note
The external filling facility must meet
the requirements of the Water Fit-
tings Regulations 1999 Section G
24.1 and G 24.2.
close
open
(cont.)
19