Oilon GKP-350 M, Руководство по эксплуатации и обслуживанию

Страница: 125 / 134

Start failure
Condition Possible cause Action
Burner does not start. Burner
control remains in stand-by
position. Set temperature or
pressure too low.
Break in control loop.
Required start-up signal from
burner control terminal X5-03.4
does not transfer to terminal
X5-03.1.
Find out the cause of the break.
Control unit is damaged. Change.
Control loop closed, burner or
control unit start-up program does
not start.
1. Faulty servomotor
2. Faulty control unit
3. Mechanical jam in levers or
couplings.
1. Change servomotor.
2. Change control unit.
3. Check and release.
Safety loop open. Find out cause of the break.
Check burner control terminals
X3-04.1 and X3-04.2
Faulty differential air pressure
switch.
Change.
Fuel selector switch S2 in position
0.
Choose fuel.
Fan motor starts.
Lockout during pre-purge.
Jammed or damaged servomotor.
Servomotors do not reach desired
position.
Check and adjust or change.
Burner control stays waiting for
start release.
Start-up release loop is open. Find out cause, repair.
Low gas pressure. Find cause and repair.
Faulty differential air pressure
switch.
Change.
Return oil pressure too high or oil
pressure too low.
Find cause and repair.
Motor failure
Condition Possible cause Action
Fan or oil pump motor does not
start. Lockout occurs.
Break in main circuit. Find out cause of the break.
Break in control circuit. Find out cause of the break, see
circuit diagram. Check burner
control operation. Replace faulty
burner control.
Motor overload/thermal relay
released.
Check setting, reset.
Faulty motor main relay. Change.
Faulty motor. Change.
Fault in frequency converter or
soft starter (if equipped).
Check error and reset.
Lack of fan air pressure
Condition Possible cause Action
Fan motor starts, but during pre-
purge period lockout occurs.
Faulty differential air pressure
switch setting.
Check setting, adjust if necessary.
Dirty or damaged differential air
pressure switch impulse tubes.
Clean or replace.
Faulty differential air pressure
switch.
Change.
Fan suction blocked. Clean.
Incorrect motor rotation direction. Reconnect motor.
M5178 1647EN 123 (129)