baltur COMIST 72 DSPGM, Instruction

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40
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…” 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
N° 7451
Rev. 10/1997