11
4.1 INSTALLATION AND
FILLING WATER TO THE SYSTEM
⚫
A by-pass line should be arranged between the inlet and outlet points of
the
circulation pump, as shown in the installation diagram, in order to increase
the
safety oin the event of a power failure or other case that can cause
circulation pump does not function.
The valve on by-pass line should be kept
closed during normal
functioning. If there is an electricity
outage
and a risk of
overheating appears, the valve
must be open
ed
and the evacuation of hot
water
must be provided by natural
circulation. The diameter of the pipe to be
used at
by pass line should be the same
diameter size with the pipe used in
installation at minimum.
⚫
An infinite power source may be used for electricty cut as an extra security
measure.
⚫
Install a
3 bar s
afety
valve on the boiler for
protection
against over
pressure
. The diameter of the safety valve should be min. 1".
⚫
It is recommended to mount circulation pump on return line for
protecting it
from overheating (stream).
⚫
All connections and valve positions must be checked after the installation
of the
boiler is complete.
⚫
Operations like water filling or draining must be done while the boiler is
not working
and when it is cold.
⚫
Monitor the pressure gauge while filling water to the system
.
Make sure
that the pressure
is 1.5bars
.
⚫
Make sure to vent all the trapped air from the system using the air purgers
on the radiators and on the installation.
⚫
Avoid any installation
that might block air in the system, if any doubt,
please use automatic purger.
