Unigas K590X, Manual Of Installation - Use - Maintenance

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PART III: OPERATION
36
1 .the first parameter will be “954”: the percentage of flame is shown on the right. By pr or - it is possible to scroll up/down the
parameter list.
2 Once the last parameter is accessed (143) by pressing + , the End message will blink.
3 PressPress InFo for more than three seconds or for more than three seconds orto return to the normal display.
For further nformation, see tha LMV2 related manual.
ADJUSTMENTS FOR GAS OPERATION
Air flow and gas adjustment

startup the burner by selecting GAS by means of the switch on the burner control panel

Adjust the air and gas flow rates, in according to the “air/gas ratio” curvepoints setting procedure on the LMV manual,. Check con-
tinuosly, the flue gas analisys, to avoid combustion with air excess.

Once the butterfly valve is completely opened, acting on the pressure stabiliser of the valves group, adjust the gas flow rate in the
high flame stage as to meet the values requested by the boiler/utilisation:

If necessary, change the combusiton head positionl.

The air and gas flow rate are now adjusted at the maximum power stage: go on with the point to point adjustement, as to reach the
minimum output

Adjust the pressure switches
Adjusting the gas valves group
Multibloc MB-DLE
The multibloc unit is a compact unit consisting of two valves, gas pressure switch, pres-
sure stabilizer and gas filter.
The valve is adjusted by means of the
RP regulator after slackening the locking screw VB
by a number of turns. By unscrewing the regulator RP the valve opens, screwing the valve
closes. To set the fast opening remove cover T , reverse it upside down and use it as a tool
to rotate screw VR . Clockwise rotation reduces start flow rate, anticlockwise rotation incre-
ases it.
Do not use a screwdriver on the screw
VR !
The pressure stabilizer is adjusted by operating the screw VS located under the cover C .
By screwing down the pressure is increased and by unscrewing it is reduced.
Note: the screw
VSB must be removed only in case of replacemente of the coil.
C
VS
T(VR)
RP
VB
VSB