INSTALLATION
8
4.
INSTALLATION
4.1.
Boiler connections
The boiler comes preassembled with all necessary for function hydraulic components (pump,
expansion vessel, safety valve, air-relief valve). All connections are performed at the back of the
boiler. There are two side doors for access inside the hydraulic of components of the boiler.
The boiler is intended for maximum working temperature 85
o
C and maximum pressure 3 bar.
Safety valve is not installed inside the boiler, it must be installed externally and
connected to the drainage!
External thermostat connection must be simple electrical switch (ON/OFF).
Voltage feed in these terminals can destroy the controller!
Legend
1
Outlet
2
Return
3
Chimney pipe
4
Air intake pipe
5
Room temperature sensor
6
External thermostat connection (THERM)
7
Service programmer connection (JA)
8
General ON/OFF switch and electrical connection
9
STB overheating thermostat
