Table of Contents
Advertisement
5.4 Setting the min. gas pressure
switch
The min. gas pressure switch should react to a burner connection pressure
that is too low and, in such cases, prevent the burner from starting. If the
connection pressure to the burner is too low during operation, the min. gas
pressure switch should stop the burner. The burner can start again once
the connection pressure has risen above the pressure set for the min. gas
pressure switch.
Setting the min. gas pressure switch
1.
Remove the protective cover, screw (Y).
2.
Open the pressure outlet (X) and connect a pressure gauge to measure
the connection pressure.
3.
Start the burner.
4.
Measure and make a note of the connection pressure to the burner
during normal operation at the highest output.
5.
Based on the desired connection pressure, determine the connection
pressure at which the gas pressure switch should stop the burner. The
connection pressure at which the burner is stopped must be set to a
level that stops the burner before poor combustion occurs.
6.
Set the min. gas pressure switch to this value by turning the scale.
7.
Check the setting by carefully closing the ball valve while measuring the
connection pressure.
8.
When the min. gas pressure switch stops the burner, the value
measured should then approximately correspond to the setting on
the min. gas pressure switch. The tolerance on the scale for the gas
pressure switch minimum is approx. ±15%.
9.
Open the ball valve.
10.
Remove the pressure gauge and close the pressure outlet (X)
!
Check the gas tightness.
11.
Fit the protective cover, screw (Y).
X
Y
21
Bentone
Advertisement
Table of Contents
