Adjustment possibilities
Adjustment range
Effective burner pressure
∆
Effective fan pressure
∆
Adjustment range
MB-VEF
Adjustment range
- Impulse lines shall be mounted in such a way that
no condensate can flow back into the multibloc.This
is especially important when P
F
is concerned.
- 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
- Impulse lines should preferably be made of steel.
Inside diameter >ø 4 mm (steel tube ø 6/4)
- For P
L
other material can be used.
- Impulse lines P
L
and P
BR
are ready from factory
Mounting instruction - impulse lines P
L
, P
F
and P
Br
- Max inlet pressure 360 mbar
- Valves V
1
+V
2
class A group 2 in accordance with EN
161
- Governor class A group 2 in accordance with EN88
- Ratio V P
Br
:P
L
0,75:1-3:1
- Filter according to DIN 3386
- Ambient temperature -15°C- +70°C
- Protection standard type IP54 (according to IEC 529,
DIN 40050)
- Gas family 1 +2 +3
- Outlet pressure 0,5 - 100 mbar
-
Zero point adjustment N ±2 mbar
- Pressure switch DIN3398 TI
- Fan pressure P
L
0,4-100 mbar
- Fire room pressure PF -2 -+5mbar
- Burner pressure P
Br
0,5 - 100 mbar
TECHNICAL DATA WITH RATIO ADJUSTMENT
172 215 16 07-01
P
Br
= P
Br
- P
F
P
L
= P
L
-P
F
!
!
P
L
, max. = 100 mbar
P
Br
max. = 100 mbar
V = 3:1
V = 1:1
V = 0,75:1
V
V = 3:1
V = 1:1
V = 0,75:1
+ N
- N
∆
pBr, min =0,5 mbar
∆
pL, min =0,4 mbar
∆
P
Br
∆
P
L
∆
P
L
∆
P
Br
{
{
N=-2
N=+2
