Application guidelines
9
FRCC.PC.014.A4.22
Technical specifications
Compressor specifications
Frequency converter
specifications
Compressor model
Swept
volume
(in³/rev)
Displacement
Oil charge
(oz)
Net weight
(lbs)
Min speed
(ft³/h)
50 Hz
(ft³/h)
60 Hz
(ft³/h)
Max speed
(ft³/h)
VSH088
5.39
328
544
657
982
102
130
VSH117
7.13
434
717
869
1292
112
143
VSH170
10.39
629
1045
1261
1882
228
236
Mains supply voltage
T2: 200 - 240 V +/-10% (3-phase)
T4: 380 - 480 V +/-10% (3-phase)
T6: 525 - 600 V +/-10% (3-phase)
Supply frequency
50 / 60 Hz
Output voltage
0 - 100 % of supply voltage
Inputs
6 digital (0 - 24 V), 2 analogue (-10 / +10 V or 0 / 4 V -20 mA, scalable)
Programmable outputs
2 digital (0- 24 V), 1 analogue (0-24 V), 2 relay
Protection functions
Over-current protection, over-modulation handling, low / high current
handling
Compressor functions
Discharge gas temperature protection, pressostat / thermostat function,
short cycle protection, oil return management
Oil injection control
Bearings lubrication
VSH compressors are equipped with an oil injec-
tion system that ensures the scroll set lubrica-
tion and controls the oil circulation ratio, at all
running speeds. The frequency converter via an
oil injection valve controls this system. The oil
injection valve is a normally closed valve. At low
speed, the valve is closed and the oil is injected
below the orbiting scroll.
The compressors are delivered with 230V coils.
24V coils are available as accessory (see accesso-
ries page at the end of this document).
Control parameters are factory preset but acces-
sible on the parameter list as read only values.
Optimal bearings lubrication is ensured by a
gerotor oil pump at all compressor speeds.