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0006081062_200709
Electrical connections
The burner manufacturer’s diagram is valid for the relief valve connections.
LEGEND
For the entire catalogue sheet
a
Limit switch commutation
contact for air damper OPEN
position
AL
Remote signalling of lock-out
stop (alarm)
AR
Main relay (operating relay)
with “ar…” contacts
AS
Appliance fuse
BR
Lock-out relay with “br…” con
-
tacts
BV
Fuel valve
bv...
Control contact for gas valve
CLOSED position
d…
Remote control switch or relay
EK… Lock-out push-button
FE
Ionization current probe
electrode
FR
Flame relay with “fr…” con
-
tacts
GP
Gas pressure switch
H
Main switch
L1
Fault indicator light
L3
Ready for operation indicator
LK
Air damper
LP
Air pressure switch
LR
Power regulator
m
Auxiliary commutation contact
for air damper
MIN position
M…
Motor fan or burner
NTC
NTC resistor
QRA.. UV probe
R
Thermostat or pressure probe
RV
Fuel valve with continuous
regulation
S
Fuse
SA
Air damper servomotor
SB
Safety limiter (temperature,
pressure, etc.)
SM
Programmer synchronous mo
-
tor
v
In the case of servomotor: au-
xiliary contact for consensus
for fuel valve depending on air
damper position
V
Flame signal amplifier
W
Thermostat or safety pressure
switch
z
In the case of servomotor:
limit switch commutation con
-
tact for air damper CLOSED
position
Z
Ignition transformer
ZBV
Pilot burner fuel valve
•
Valid for forced draught bur-
ners, with obe tube
••
Valid for pilot burners with in
-
termittent operation
(1)
Input for increasing operating
voltage for UV probe (probe
test)
(2)
Input for forced energizing of
flame relay during functional
test of flame supervision cir
-
cuit (contact XIV) and during
safety time t2 (contact IV)
3
)
Do not press EK for more
than 10 seconds
Summary of Contents for BGN 200 LX
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