baltur GI MIST 350 DSPGM User Instruction Manual page 31

Electric connections
For the safety valve connection refer to the drawing provided by the burner manufacturer
Key
for the entire catalogue
a Limit switch commutation contact for
air shutter OPEN position
AL Remote signal of lock-out stop (alarm)
AR Main relay (operating relay) with "ar..." contacts
AS Equipment fuse
BR Lock-out relay with "br..." contacts
V... Fuel valve
bv... Control contact for
gas valve CLOSED position
d... Remote control switch or relay
EK... Looking button
FE Ionization current probe electrode
FR Flame relay with «fr» contacts
GP Gas pressure switch
H Main switch
L1 Fault warning light
L3 "Ready for operation" signal
LK Air gate
LP Air pressure switch
LR Power regulator
m Auxiliary switch contact for air gate
MIN position
M... Fan or burner motor
NTC NTC resistor
QRA... UV probe
R Thermostat or pressure switch
RV Fuel valve with continuous regulation
S Fuse
SA Air gate servomotor
SB Safety limiter (temperature, pressure, etc.)
SM Programmer synchronous motor
v In the case of servomotor: auxiliary contact for
consensus to fuel valve according to
the air gate position
V Flame signal amplifier
W Safety pressure switch or thermostat
z In the case of servomotor: limit switch contact
for air gate CLOSED position
Z Ignition transformer
ZBV Fuel valve of pilot burner
• Valid for forced air burners with one tube
•• Valid for pilot burners with intermittent operation
(1) Input for operating voltage increase
for UV probe (probe test)
(2) Input for flame relay forced excitation
during operation test of the flame supervision
circuit (contact XIV) and during
t2 safety time (contact IV)
³) Do not press EK for more than 10 s.
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