5
Installing the boiler
Logano GB125 BE US/CA - Subject to technical modifications.
23
5.4.2
Mounting the drain valve (included with B-kit)
B
Install and seal the drain valve on the EL connection.
Fig. 17 Installing the drain valve
RK
Boiler return
EL
Draining
5.4.3
Installation of system components
See the installation diagram for installation of the heating
system components.
For more installation examples refer to Chapter 10,
page 50.
Fig. 18 Installation diagram
1
Safety valve
2
Pressure/temperature gauge
3
Ball valve drain
4
Air eliminator (in main supply)
5
Heating pump
6
Check valve (back flow preventer)
7
Diaphragm expansion vessel
8
Automatic feed valve
9
Check valve (back flow preventer)
10
Purge station
11
Water supply
VK
Supply
EL
Draining
RK
Boiler return
Install a drain valve in the return piping to the
heating system.
7 747 019 141-15.1RS
RK
EL
CAUTION:
Risk of system faults from
excessive flue gas temperature!
B
The drain valve connection (EL) must
never be used for any other purpose than
to drain the boiler block.
For draining of the secondary heat exchanger
system, install a boiler drain at the lowest
point of the piping.
