baltur BGN 200 LX Mode D'emploi page 26

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
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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
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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