18
For antifreeze protection of the solar water
heater, please follow the ratio of antifreeze pro
-
tection stated in the table here below.
Mix well the thermal fluid with water.
Start filling the closed circuit with the
mixture, from the pipes (14) and (02).
The filling must be done alternati
-
vely, from both pipes (14) and (02).
During the filling, we advice you to
shake the system, so that to ensure
that no air is trapped inside the sto
-
rage tank and the collector.
Continue this procedure until the close
circuit is completely full.
The responsibility for the correct use of
the antifreeze liquid quantity is for the
account of the installer and in no case of
Helioakmi S.A.
The use of water only or other liquid may cancel the
validity of the warranty.
20
Place the protective side cover (20).
12
Add some more fluid in the closed circuit,
until it overflows from the tubes (14) and
(02). Screw the plug (14A) onto the tube
(14) and fix the safety valve (02A) onto
the tube (02).
Check carefully all connections for com
-
plete water tightness.
14
02A
14A
02
17A
After the filling of the closed circuit, it is
necessary to loosen the plug (17A) at
the top right hand of the collector, until it
starts dripping thermal fluid (for models
200, 260 and 300 with two collectors,
loose also the top pipe union (12) in order
to release the air from the collector(s).
Tighten back the plug (17A) and the col
-
lector connection (12) and check for their
complete water tightness.
Filling Instructions of the Closed Circuit with Thermal Fluid
(for the solar water heaters of closed circuit)
