Technical Data; General Limits Of Operation Grasso Vhs - GEA Grasso VHS Series Installation And Maintenance Instructions Manual

4.2

TECHNICAL DATA

Total number of cylinders
Cylinder bore (mm)
Piston stroke (mm)
Total swept volume at full-load in (m
Standard direction of rotation
Mass of bare compressor (without flywheel and other accessories) (kg)
Shipping volume (m
Oil charge in crankcase and oil circuit (centre line / max. of sight glass),
approx. (dm
Mass moment of inertia of crank mechanism (without flywheel) (kg.m
4.3

GENERAL LIMITS OF OPERATION GRASSO VHS

When operating the compressor, none of the limits of operation as stated in the
table below must be exceeded. *
The diagram Figure 17, Page 53 represent the overall fields of application in
which the individual operation limits are taken into account.
General limits and fields of operation
Discharge pressure = condensing
tc = saturated condensing temperature
Discharge pressure = condensing
10
11
12
13
14
P-NL-094_imm_VHS_English_13
26.07.2021
COMPRESSOR TYPE
3
)
3
)
REFRIGERANT
Speed
Suction pressure = evaporating
pressure =crankcase pressure
Suction superheat
Actual suction temperature
pressure
10
*
11
*
13
pressure *
14
*
This pressure is also the maximum allowable pre-set value of the HP safety switch.
CAUTION!: When adjusting the HP and/or LP safety switch, care should be taken that the pressure
difference Δp=(p -p ) never exceeds 26.0 bar(g).
C o
"Ps" is mentioned on type plate of the compressor
This pressure is also the maximum allowable pre-set value of the HP safety switch.
CAUTION!: When adjusting the HP and/or LP safety switch, care should be taken that the pressure
difference Δp=(p -p ) never exceeds 19.0 bar (g).
C o
3
/h)
max.
n
min.
min.
p /t
o o
max.
delta-t min.
t
min.
a
12
P * /
s
max.
t
c
APPENDIX; Product Information (PI)
TECHNICAL DATA
Grasso VHS series
700 1100 1400
4 6
160
110
speed
1500 min
HP 796 1193 1592
clockwise when facing shaft
end
794 1054 1495
1.2 1.4
19.0 28.0 40.0
22.4 31.9 45.6
2 0.342 0.474 0.840
)
NH
3
-1
1500 min in combination with speed
controlled electric motor
-1
500 min
0.3 bar(a)
-55 °C
7.0 bar(a)
13 °C
>0 °C
-50 °C
24.0 bar(a)
56 °C
1800
8 10
-1
1991
1725
1.8 2.1
48.0
55.1
0.730
51