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GENERAL INFO
Main setup data
Description
Value
Remark
Grasso V 300 (T) .. V 600 (T)
Grasso V 700 (T) .. V 1800 (T)
Start frequency
max. 6 starts per hour
The
NO-solenoid has to be
de-energised 20 seconds
after starting the compressor
motor to enabel the motor to
reach the minimum speed and
the compressor to develop the
required oil pressure.
Time interval between stopping
and re-starting
min. 2 minutes
Time interval between starting
and re-starting
min. 10 minutes
Time interval between loading
and unloading
min. 3 minutes
For continuous minimum part-
load (i.e. more than 30
minutes) consult Grasso.
Adjust the steps between up
and down loading, in such a
way that the system is running
stable.
Oil level
25-75% crankcase sight glass
Min. oil temperature
> 30
o
C and > P
saturated crankcase pressure
+ 15 K
Indicated minimum value is the
lowest oil temp. at which the
compressor is allowed to be
started.
Max. oil temperature
Refer to oil selection table/applied type of oil
Required oil viscosity;
≥ 10 cSt during operation at
location of bearings.
The maximum temp. depends
on the operating conditions of
the compressor, the oil type
used and (A minimum actual oil
viscosity of 10 cSt in the
bearings is always requried;
bearing temp. to determine oil
viscosity is approx. oil
tempe 15K)
Control oil pressure
suction pr 8 bar (g)
Lubricating oil pressure
difference
between 1.3 and 4.5 bar Setting approx. 2.0 bar (g)
After a mimimum of 15 minutes
running time at an oil
temperature of approx. 50
o
C
Max. discharge temperature
170 °C
Min. suction pressure
0.3 bar(a)
Max. intermediate pressure
Max. suction pressure
8.5 bar (a)
7 bar (a)
Pdischarge - Psuction
≤ 25.0 bar (g)
≤ 19.0 bar (g)
Superheat
>0 K
Oil discharge -
running in -
filter
Factory mounted;
to be replaced after max. 100 running hours
by “normal” oil discharge filter
element
Oil discharge filter
Supplied loose; replacement for factory mounted running in filter
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Содержание Grasso V 1100
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