Oilon GP-6.10 P Operating And Maintenance Instruction Manual - page 15
12
40180036GB
5.3. Operation
1
Prerequisites for start-up
·
failures and interlocks are reset
·
limit switch on burner flange is closed
·
control switch in position 1
·
control unit is reset (lockout indicator at symbol
)
·
contact C/NC of differential air pressure switch is closed (air pressure
·
gas pressure > min. Pressure switch (min.) has switched its contact to position C/NO (A)
·
valve leak tester has carried out the test and has given a start signal (option) (A)
·
control switch in position 1 (A)
·
external contacts connected to the control loop are closed (A)
·
contact of boiler thermostat/pressurestat (partial load) and/or the switch-on threshold of
the capacity controller are closed (A)
·
required start signal from the limit switch of the switching point
II
in the servomotor to
terminal 8 in the control unit (the motor of the sequence switch).
(A) = control loop
1.1 Start-up (lockout indicator of the control unit is at symbol )
·
control loop closes
·
control program (sequence switch) of control unit starts
·
fan motor starts.
2
Lockout indicator of the control unit is at symbol
·
servomotor runs to switching point
I
(air damper is open)
·
sequence switch is stopped for the running time.
3
Servomotor has run to switching point
I
(air damper is open)
·
required start signal from the limit switch of switching point
I
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).
·
pre-purge (36 s) with nominal air quantity begins.
4
Lockout indicator of the control unit is at symbol
P
·
differential air pressure switch has to change its contact over to position C/NO.
Otherwise the control unit goes to
lockout
, because the air pressure signal has not
been received at the start of the air pressure check. Every air pressure failure after this
point also causes the control unit to go to
lockout
.
5
Lockout indicator of the control unit is at symbol
n
·
control of flame supervision circuit (LFL)
·
lockout
due to a fault in flame supervision circuit.
6
Lockout indicator of the control unit is at symbol
·
pre-purge (36 s) completed
·
servomotor runs to switching point
III
(ignition load)
·
sequence switch is stopped for the running time.