Installation/Maintenance Guide

7
Installation
Logano G201 - Subject to technical modifications.
29
7.3 Filling the heating system and
checking connections for leaks
Before commissioning the heating system, check it for
soundness to avoid leaks occurring during operation.
Carry out the leak test at 1.5 times the normal operating
pressure and in accordance with the local regulations:
Warning: Risk to health due to pollution of
drinking water!
V Always observe the regulations and stan-
dards applicable in your jurisdiction for the
prevention of contamination of drinking
water (e.g. by water from heating sys-
tems).
Warning: Risk of system damage from ex-
cessive pressure!
Pressure, control, and safety equipment and
the DHW cylinder may be damaged by ex-
cessive pressure.
V When you carry out a leakage test, make
sure that no pressure, control or safety
equipment that cannot be isolated from
the boiler water chamber is installed.
Caution: Risk of damage to system due to
temperature stresses.
If you fill the heating system when it is hot, the
resulting temperature stresses can cause
stress cracks. The boiler will then leak.
V Only fill the heating system when cold (the
flow temperature should be no more than
100 °F).