Bentone BG 550 M LN Installation And Maintenance Instruction page 26

7.6.2 Technical data
– Max inlet pressure 360 mbar
– Valves V1+V2 class A group 2 in accordance with EN 161
– Governor class A group 2 in accordance with EN88-1
:P 0,75:1-3:1
– Ratio V P
L
Br
– Filter according to DIN 3386
– Ambient temperature -15°C- +70°C
Protection standard type IP54 (according to IEC 529,
DIN 40050)
7.6.3 Mounting instruction - Impulse lines P
– Impulse lines P should preferably be made of steel. Inside diametre >ø 4 mm
Br
(steel tube ø 6/4).
– For P other material can be used.
L
– Impulse lines P
and P
L
– Impulse lines shall be mounted in such a way that no conden sate can flow
back into the gas valve. This is especially important when P
– Impulse lines shall be mounted in such a way that they are protected against
rupture and damage.
– Impulse lines shall be as short as possible.
7.6.4 Adjustment possibilities
!
Effective burner pressure
∆ P = P - P
Br Br F
Effective fan pressure
!
∆ P
= P -P
L L F
Adjustment range
26 Bentone
are ready from factory.
Br
∆
∆
P
N=+2
N=-2
– Gas family 1 +2 +3
– Outlet pressure 0,5 - 100 mbar
– Zero point adjustment N ±2 mbar
– Pressure switch DIN3398 TI
– Fan pressure P 0,4-100 mbar
L
– Fire room pressure P
F
– Burner pressure P 0,5 - 100 mbar
Br
, P och P
L F Br
is concerned.
F
P
Br
Br
MB-VEF
Adjustment range
{
∆
pBr, min =0,5 mbar
{
-2 -+5mbar
+ N
- N
∆
P
L
max. = 100 mbar
P
Br
∆
P
L
, max. = 100 mbar
P
L