15
R1KG 24 - RAD - ING - Manuale - 1806.1_SK.2
1 R
iempimento
dell
'impianto
_
M
IA
H
4
_
R
1K
G
_
P
M
_
EN
1. INSTALLATION
INST
ALLER
1.1.10. SYSTEM FILLING
WARNING
For system filling use only clean tap water.
WARNING
If the system is filled by adding ethylene
glycol-type chemical agents you have to install on
the loading system a hydraulic trip unit in order to
separate the heating circuit from the domestic circuit.
Before powering up the boiler, fill the system as
follows:
1. slightly loosen the cap of the circulator jolly
valve (1-fig. 1) to release the air from the
system;
2. slightly loosen the cap of the jolly valve placed
on the top of the condensing block (fig. 3) to
release the air form the top of the system;
3. open the feeding tap “R” (fig. 2);
4. release all the air;
5. use pressure gauge “M” (fig. 2) to make sure
that the system pressure reaches 1.2 bar,
which corresponds to the middle part of the
green zone ‘ZV’ (fig. 4);
6. after performing this operation, make sure
that the loading tap “R” (fig. 2) is properly
closed.
1
R
M
fig. 1
fig. 2
fig. 3
