20/30
22.11.21, Subject to alterations
Gas burner with gas train
21 Gas burner with gas train
The nipple for the compressed air connection P
L
must be screwed in at the top of the gas jacket (see 9.
Mounting the gas jacket at the boiler).
Connect the blue hose at the "AIR" connection of the gas train and at the air pressure connection at the
gas jacket. The blue hose serves as a control line for the gas train and must be routed in a loose loop with-
out kinking.
Burner start:
If the burner does not go into operation, turn adjusting screw
N
or small flame slightly in the direction "
+
"
and repeat start.
KEV 1 ½", KEV2", KEV DN65 (VGD20.40, VGD20.50, VGD40.65 alle SKP15/75)
.
KEV412 1 ½"(MB-VEF 412)
Installation of the gas train
Installation position
only in horizontal line, not tilted.
Minimum distance to masonry
20 mm
SKP 15
VGD
Pulse line p
G
SKP 75 (gas pressure regulator)
Cover plate for
Adjustment screws
Pressure gauge
Nozzle pressure p
G
detail
Small flame
Large flame
Furnace pressure p
F
Gas pressure switch
(gas inlet pressure
leakage check)
"AIR" air pressure connection p
L
Gas pressure switch
(gas inlet pressure)
Inlet flow pressure p
e
Setting screw N (Min. output 1st.setting)
Pressure gauge
Nozzle pressure p
G
Furnace pressure p
F
Setting screw V (Max. output 2nd setting)
"AIR" air pressure connection p
L
