Installation Manual

36
Installation and maintenance instructions Logano G215 US oil/gas-fired boilers • Issue 2012/10
We reserve the right to make any changes due to technical modifications.
Boiler installation8
8.2.3 Installation of system components
See the installation diagram for recommended
installation of the heating system components.
8.3 Filling heating system and checking for water leaks
When the boiler is delivered assembled it is checked for
leaks at the factory. Before placing the heating system
into operation, check it for leaks to prevent leaks
occurring during operation. When supplied
disassembled (Î Chapter 7.2, page 25).
Carry out the leak test at 1.5 times the standard
operating pressure and in accordance with the codes.
Fig. 49 Installation diagram
1 Pressure relief valve
2 Pressure/temperature gauge
3 Ball or stop valve
4 Air eliminator
5 System pump
6 Back flow preventer
7 Expansion tank
8 Automatic feed valve
9 Check valve
10 Purge station
1
2
3
4
5
6
3
3
7
8
9
3
10
Return
Fill valve
Boiler drain
Supply
VK
RK
3
Fig. 50 Pressure/temperature gauge
CAUTION!
SYSTEM DAMAGE
due to overpressure during leak testing.
Pressure, control and safety equipment
may be damaged by excessive pressure.
z When you carry out a leak test, make
sure that no pressure, control or safety
equipment is fitted which cannot be
isolated from the boiler water chamber.