Unigas HRX92R-FGR, Manual Of Installation - Use - Maintenance, Page: 34 / 132

PART III: OPERATION
34
Adjustments - brief description
The air and fuel rates adjustments must be performed at the maximum ouptput first (“high flame”): see the LMV2.. related manual..

Check that the combustion parameters are in the suggested limits.

Then, adjust the combustion values by setting the “fuel/air” ratio” curvepoints (see the LMV2.. related manual).

Set, now, the low flame output, in order to avoid the low flame output increasing too much or that the flues temperature gets too low
to cause condensation in the chimney.
User interface
The AZL2x.. display is shown below:
The keys functions are the following:
The display will show these data:
Key F
Used to adjust the “fuel” actuator position ( F uel): :
While pressing the F key, the “fuel” actuator position can be changed by means of the + and - keys.
Key A
Used to adjust the “air” actuator position ( A ir):
While pressing the A key, the “air” actuator position can be changed by means of the + and - keys.
Key F + A
While pressing the two keys contemporarly, the code message will appear: by entering the proper
password it is possible to access the Service mode.
Info and Enter keys
Used for Info and Service menues
Used as Enter key in the setting modes
Used as Reset key in the burner operation mode
Used to enter a lower level menu
-Key -
Used to decrease a a value
Used to enter Info and Serivce during the curve adjustments
+Key +
Used to increase a a value
Used to enter Info and Serivce during the curve adjustments
Keys (+ & - )= ESC
By pr and - at the same time, the ESCAPE function is perfomed:
to enter a lower level menu