EUROGAS SERIES
TYPES VM41 VM42
AUTOMATIC CONTROL SYSTEMS FOR FORCED
DRAUGHT BURNERS FOR GASEOUS FUELS
DESCRIPTION
The automatic control systems of this series are suitable to
control forced draught burners for gaseous fuels for non-
permanent operation.
All these controls perform non-volatile lock-outs, condition
from which a restart of the system is only possible by
means of the control manual reset.
This range of controls is suitable to equip burners for
domestic and industrial heating. The VM41 control is
suitable for single flame applications, while the VM42
control is suitable for dual flame applications.
GENERAL FEATURES
The main features of this range are the following:
−
EC - Type certification (CE Reg. N° 63AQ0625) in
accordance with Gas Appliance Directive 90/396;
−
in accordance with EN 298 (European standard for
automatic gas burner control systems), prEN 676
(European standard for automatic forced draught
burners) and DIN 4788 (German standard for automatic
forced draught burners);
−
flame monitoring by the rectification property of the
flame (ionization);
−
two independent safety contacts for the gas valve
control;
−
electrical service life at max.declared loading >250.000
operations;
−
inbuilt manual reset;
−
easy to install and wire;
−
interchangeable with the relevant mechanical controls
as regards operation and dimensions;
−
max. burner output for VM41:
120KW according to prEN 676;
350KW according to DIN 4788;
−
max. burner output for VM42: no limits.
TECHNICAL DATA
Power supply:
230V-50/60Hz
upon request:
110/120V-50/60Hz
Operating temperature range:
-20°C
+60°C
Ambient humidity:
95% max. at 40°C
Protection degree:
socket type NE
IP 40
socket type N
IP 40
Classification code
(according to EN 298):
VM41
FMCLXN
VM42
FTLLXN
Flame failure during TS causes spark restoration.
Times:
-Prepurge time (TW)
20/30/40/50/60 s
-Safety time (TS):
VM41:
2/3/4/5 s
VM42:
2/3 s
-Drop out time on running flame failure: < 1 s
The times given on the burner control label correspond to
the values guaranteed. The actual values differ slightly
from the values given, pre-purge and waiting times are in
fact longer and safety time shorter than their nominal
values.
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