Oilon GKP-50 MH, Operation And Maintenance Manual

Page: 85 / 100

Test method Outcome
Step 1
1. Disconnect the high pressure hose (+) from the switch.
2. Start the burner.
After testing, reconnect the high pressure hose.
Boiler pre-purging begins. The burner
must shut down before the pre-purge
cycle is completed.
Symbol ”Hint 15” blinks for the time
period set to the parameter 304 (factory
setting 600 s).
Fault code H613.
Step 2
1. Disconnect the low pressure hose (-) from the switch.
2. Start the burner.
After testing, reconnect the low pressure hose.
Boiler pre-purging begins. The burner
must shut down before the pre-purge
cycle is completed.
Symbol ”Hint 15” blinks for the time
period set to the parameter 304 (factory
setting 600 s).
Fault code H613.
Step 3
1. Start the burner. Wait until the start-up sequence is
finished.
2. After the start-up is completed, rotate the setting wheel on
the switch towards the maximum setting.
After testing, return the setting wheel to its original position.
The burner should shut down before the
maximum setting.
Fault code H613.
Step 4
1. Start the burner. Wait until the start-up sequence is
finished.
2. After the start-up is completed, disconnect both pressure
hoses from the switch.
After testing, reconnect both hoses to the original positions.
The burner should shut down
immediately after hoses are
disconnected.
Fault code H613.
Gas pressure switches
For instructions on adjusting the switches, see section
Adjusting gas pressure
switches .
Gas pressure, minimum
Test method Outcome
Step 1
1. Rotate the setting wheel on the switch to its maximum
value.
2. Start the burner.
After testing, return the setting wheel to its original position and
reset the switch.
Boiler pre-purging begins. The burner
must shut down before the pre-purge
cycle is completed.
Fault code H611.
Step 2
1. Start the burner. Wait until the start-up sequence is
finished.
2. Rotate the setting wheel on the switch towards the
maximum value while the burner is running.
After testing, return the setting wheel to its original position and
reset the switch.
The burner should shut down before the
maximum setting.
Fault code H611.
Gas pressure, maximum
Test method Outcome
1. Start the burner. Wait until the start-up sequence is
finished.
2. Drive the burner to maximum capacity.
3. Rotate the setting wheel on the switch towards the
minimum value while the burner is running.
After testing, return the setting wheel to its original position and
reset the switch.
The burner will shut down before the
minimum setting.
Fault code H609.
M5164 1640EN 83 (95)