Oilon GP-6.10 P Operating And Maintenance Instruction Manual - page 16
13
40180036GB
7
Servomotor has run to switching point
III
(ignition load)
·
required start signal from the limit switch of switching point
III
to the terminal 8 in
control unit. Otherwise the start-up program interrupts and the control unit
remains (symbol
) waiting for start signal (no failure).
8
Ignition begins
·
pre-ignition 4 s
9
Safety time (2 s) begins
·
main gas valve (1) opens
·
gas valve (2) opens
·
gas flows via gas/air ratio controller to the nozzle
·
ignition flame is ignited by the ignition spark.
10
Lockout indicator of the control unit is at symbol
1
·
safety time (2 s) ends
·
ignition ends
·
flame has to be ignited by now
·
every flame signal failure after completion of safety time leads to
lockout
·
flame burns at the set ignition load.
11
Lockout indicator of the control unit is at symbol
│
(operation)
·
sequence switch stops for the running time
·
control signal from terminal 20 on the control unit for the running time
·
if the contact C/NC of full load thermostat/pressurestat is closed or the capacity
controller carries out an increase function, servomotor runs to switching point
I
(full
load). The gas/air ratio controller adjusts the gas quantity in relation to the
increasing/decreasing air quantity according to the set ratio (V) in the ratio controller.
·
burner operates on capacity regulation range (
I
-
III
) supervised by the control unit and
controlled by the control device (thermostat/pressurestat or capacity controller) at partial
load or full load (high-low) or between partial load or full load (modulating) according to
the heat requirement.
·
lockout
, if the flame signal or the air pressure signal is lost during operation
·
if the gas pressure falls bellow the set value of the gas pressure switch (min.), burner
shuts down controlled. When the pressure returns to normal level, burner starts
according to the start-up program.
12
Controlled shutdown (control loop opens)
·
main gas valve (1) closes
·
gas valve (2) closes
·
flame extinguishes
·
gas/air ratio controller closes
·
sequence switch starts and begins to program the permissible post-purge
time (12 s)
·
with control signal from terminals 10 and 11 servomotor runs to or remains at switching
point
II
(air damper and gas valve (MultiBloc) to ”closed” position.