Installation Angles - FNM HPE Series Installation Manual

The size of the ventilation openings must be
multiplied by the number of engines installed.
The combustion air flow rate (for single engine) is shown in the
following table:
Engine
1.3HPE
1.9/2.4HPE
3.0HPE
The best temperature of operation of the engine is
between 30 and 40°C. This temperature must be checked
after the installation, near the air inlet filter to the engine. For
this purpose, the minimum diameter of the ventilation openings
is indicated in the following table:
Engine
1.3HPE
1.9/2.4HPE
3.0HPE
If it is not possible to reach an operating temperature within
the indicated range, or to improve the air inflow to the engine,
it is appropriate to increase the size of the ventilation
apertures.
Even with the increase in the size of the ventilation openings it
is not possible to return within the indicated range because of
weather conditions or the shape of the engine compartment, it
is necessary to check the difference between the outside
temperature and the engine compartment: this should never
be above 25°C.
Intake air flow rate
[m /min] [ft
3
8
10
12.5
Dimension of the ventilation openings
Intake [cm ] Exhaust [cm
2
184 (28 in ) 80 (12 in
2
230 (35 in 2 ) 100 (16 in
285 (45 in ) 125 (20 in
2
/min]
3
282

3.6 Installation angles

353
Refer to the table below for the maximum installation angles
424
and use of the engine.
Engine
]
2
)
2
2 )
)
2
1.3HPE
1.9/2.4/3.0
HPE
Intake temperatures above 40°C can damage the
engine.
Failure to follow the instructions regarding the
dimensions of the openings and the operating
temperature compromises the engine reliability and
will void the warranty.
Maximum
longitudinal angle transverse angle
of continuous
operation (static operation (static
+
dynamic)[degrees dynamic)[degrees
/360]
± 20
± 10
Use the engine speed out of the ranges allowed may
constitute a serious failure of the production unit
because of the lack of oil in the pump and can lead
to engine damage.
Always check the oil level when the engine is in a
horizontal position, or within the limit indicated in the
table above.
FNM® Series HPE – Installation Manual – 13
Longitudin
Maximum al for
checking
of continuous the oil
level with
+ standard
dipstick
/360] [degrees/3
60]
± 25 0 ÷ +6
± 20 0 ÷ +6