VITO PRO POWER VIGI1250 Mode D'emploi page 47

At high altitude, the usual air–fuel mixture will be extremely
rich. The yield will decrease, and fuel consumption will
increase. A very rich mixture will decrease the spark and
cause a bad start.
High altitude performance can be improved by installing
thinner fuel tubing in the carburettor and adjusting the pilot
screw. If you always use the generator at altitudes above 15
00m above sea level, you should seek specialised technical
assistance to make the necessary adjustments. Even with
proper fuel injection, the power of the generator decreases
on average by 3.5%, for every 300m of altitude increase.
The effect of altitude on power will be greater if the
necessary adjustments are not made.
If an engine prepared for high altitudes is used at low
altitudes, the air-fuel mixture will reduce yield and
may overheat the engine causing serious engine damage.
Parallel operation allows power level combination (Table 5)
of 2 inverter generators, regardless of model.
This connection is possible with the use of special parallel
operation cables, which allow higher power output when
compared to the use of a single generator.
All VITO inverter generator models are designed to run both
individually and in parallel.
Table 5 - Parallel connection and resulting features.
Rated
Pairing
power
generators
Two VIGI4000 7600
watts
Two VIGI3000 6400
watts
Two VIGI2000 3600
watts
Two VIGI1250 2000
watts
VIGI4000 and 7000
VIGI3000 watts
VIGI4000 and 5600
VIGI2000 watts
VIGI3000 and 5000
VIGI2000 watts
VIGI4000 and 4800
VIGI1250 watts
VIGI3000 and 4200
VIGI1250 watts
VIGI2000 and 2800
VIGI1250 watts
Maximum Autonomy Autonomy
power (100%)
5 h
8000
watts
7000 5 h
watts
4000 3,5 h
watts
2500 3,5 h
watts
7500 5 h
watts
5 h
6000
watts
5500 5 h
watts
5250 5 h
watts
4750 5 h
watts
3250 3,5 h
watts
Table 6 - Generator's individual operation features.
Generator
VIGI4000
VIGI3000
VIGI2000
VIGI1250
Assembly:
(50%)
8,5 h
8,5 h
6 h
5,2h
8,5 h
8,5 h
8,5 h
8,5 h
8,5 h
6 h
Rated Maximum Autonomy
power power (100%)
3800 4000 5 h
watts watts
3200 3500 5 h
watts watts
1800 2000 3,5 h
watts watts
1000 1250 3,5 h
watts watts
Autonomy
(50%)
8,5 h
8,5 h
6 h
5,2h