elco TRIGON L PLUS - Adjustment on the Gas Valve (Step 3;3)

84
Commissioning
Flue gas analysis
Adjustment on the gas valve (Step 3/3)
Step 3: Adjustment on the gas valve
Adjust the gas valve only in case the
measured values lies out of range of
the values mentioned in the table on
previous page.
- Opentheboilerasdescribedon
page85;
- First put engine 1 on full load (see
Step1)andfollownextsteps;
- The O
2
/CO
2
valuesaresetbyusing
anAllenkey(2mm),oralargeat
head screwdriver, on the screw
“3”.Pleaseobservethefollowing
rotatingdirection;
- Clockwise means more O
2
/
less CO
2
;
- Counterclockwise means less O
2
/
more CO
2
;
- Oncedone,repeatthestepsabove
for engine 2.
Legend
1. Measuringpointfortheuegas
probe
2. O󰀨setregulation
3. Main throttle regulation
4. Pressure P-int
5. Pressure P-out
After this setting has been made, once more test the O
2
/CO
2
value at full
load and low load. See Step 1 and 2.
1
5 2
34
Adjustment of the gas valve in case the measured values lies out of range of the values on full load (Step 3)
Full load Natural gas (G20) Propane (G31)*
O
2
4,8% 5,0%
CO
2
9,0% 10,5%
Valuesarevalidwithclosedcover/airbox. *onlypossibleifLPGconversionkitisinstalled
Attention; close the venturi intake for the non-running engine (bare in mind
there is a 3 minute post purge time active).