9
2014-03-03 / 06
PIPE INSTALLATION
Installation of safety valve
(not included in the delivery)
The valve must be CE marked with maximum opening pressure 3.0 bar, minimum size DN 25.
The safety valve must be selected based on the combined equipment's highest pressure class.
Do not install any device between the valve and the boiler that can be used to close the connec-
tion.
The blow-off pipe must be installed so it does not limit the valve's blow-off capacity nor cause
any risk of accidents when the valve is activated.
WARNING! When the valve is activated, hot steam sprays out of the pipe under pressure!
Expansion tank
The size of the expansion tank is determined as follows:
Closed system: according to the instructions from the expansion tank's manufacturer
System volume = boiler volume (+ hot water heater volume) + pipe radiator volume
Production of hot tap water
There is an efficient flat heat exchanger for tap water in the boilers in the BioComp series, so
generally speaking there is no need for a separate hot water heater. The flat heat exchanger with-
stands pressures up to 10 bar. The system can also be connected to an external heat exchanger of
the size required.
System volume (lit-
res)
Opening pressure
(bar)
Pre-pressure
(bar)
Tank volume (litres)
70 °C 90 °C
500
3.0
0,5
35
80
1 000
3.0
0.5
80
140
1 500
3.0
0.5
80
140
2 000
3.0
0.5
140
200