27
N°
7
451
Rev. 10/1997
Electrical connections
The burner manufacturer’s diagram is valid for the relief valveconnections.
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…” contacts
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…” contacts
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 motor
v
In the case of servomotor: auxiliary 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 contact for air damper CLOSED
position
Z
Ignition transformer
ZBV
Pilot burner fuel valve
•
Valid for forced draught burners, with obe tube
••
Valid for pilot burners with intermittent 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 circuit (contact
XIV) and during safety time t2 (contact IV)
3
)
Do not press EK for more than 10 seconds
CONTROL BOX FOR LFL 1...
SERIES 02 GAS BURNERS
Содержание BGN 100 DSPGN
Страница 6: ...6 BGN 40 DSPGN 100 DSPGN N 7604 2 Rev 02 02 96 BGN 120 DSPGN 350 DSPGN N 7605 5 Rev 17 11 97...
Страница 19: ...19 AIR REGULATION PRINCIPLE DIAGRAM FOR GAS BURNERS BT 8769 1...
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