Unigas C120A, Installation Manual

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PART III: OPERATION
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Start-up procedure
1 Turn the burner on.
2 the LMV control box starts the system test cycle: the AZL display shows the System Test message; at the end of the test, it shows
the main page and the system stops (the safety chain is open) waiting for the startup enabling signal (standby - Program phase no.
12)
Main page
3 check the fan motor rotation (see related paragraph).
4 make the safety chain enabling the system to start up
5 the combustion cycle starts: the system will show the operating stages
- Prepurging (program phase no.30)
- Driving to ignition position (program phase no.36)
- Ignition position (program phase no.38)
- Fuel (the fuel solenoid valves open)
- Flame (the flame lights up)
- Driving to low flame (the actuator drives to low flame).
NOTE: the C and A , on the .
Once the ignition cycle ends, the main page is shown:
Main page
Set point: temperature set-point
Act value: actual temperature value
Load: load percentage (burner output)
Flame: percentage of flame detection current.
By pressing the ENTER key the display shows the second page:
Second page
Fuel : it shows (in degrees) the fuel actuator position.
Air : it shows (in degrees) the air actuator position.
Ax1..3 : auxiliaries.
VSD : % value on the inverter maximum frequency
O2 : oxygen percentage
Ld : load percentage (burner output).
Press the ENTER key to go back to the main page.
To access the
main menu , from the main page, press the ESC key tiwce:
Setpoint 80°C
Act.value 78°C
Fuel GAS
Standby 12
Setpoint 80°C
Act.value 78°C
Load 24%
Flame 60%
Fuel 0.0 Air 1.8
Ax VSD 0.0
Ax O2
Ax Ld. 0.0