FScurtis NxB/V Series User manual

WARNING
NxB/V Series
Operator Manual
4  15 kW

Design and function
1.1 Overview
Fig. 1: Standard screw compressor with belt drive 3 - 15 kW)

The basic construction is the same for all screw compressor variants. The position or look of the
assemblies may vary from the illustration
Fig. 2: Overview of the assemblies: Screw compressor with frequency converter, refrigeration dryer (optional) and air receiver
(optional)

1.2 Brief description
1.3 Assembly description
Controller
For detailed information about the
controller installed, consult the
separate Controller documentation.
Enclosure panels
Fig. 3: Enclosure panels
Drive unit
Fig. 4: Screw compressor with V-belt drive

Fig. 5: Screw compressors with V-belt drive and
frequency convertor
Intake filter
Fig. 6: Standard intake filter
Compressor airend
Fig. 7: Compressor airend

Oil separator tank
Fig. 8: Oil separator tank
Fig. 9: Relief valve (1)
Air/oil separator
Fig. 10: Air/oil separator
Minimum pressure and non
return valve
Fig. 11: Minimum pressure and non-return valve

Coolers
Fig. 12: Coolers
Oil filter
Fig. 13: Oil filter
Cooling air fan
Fig. 14: Screw compressor with air receiver (optional),
refrigeration dryer (optional) and/or frequency converter
3–15 kWn
The forced ventilation and bleeding
equipment must be dimensioned so
that the required supply and exhaust air
can be supplied and extracted taking
into account the existing residual thrust
from the cooling air fan. The exhaust
air can also be used for heat
reclamation.

Refrigeration dryer
Fig. 15: Refrigeration dryer
Depending on the variant, a hose for
discharging the condensate may
already be attached to the condensate
drain; otherwise, the user will need to
attach one.
1.4 Interfaces
Fig. 16: Screw compressor with frequency converter, air
receiver (optional) and refrigeration dryer (optional) 3–
15 kW
Fig. 17: Discharge port

Safety
2.1 Symbols in these instructions

This symbol indicates tips and
recommendations and information for
efficient and fault-free operation.
[Button]
"Display"
2.2 Proper use

2.3 General safety 2.4 Safety devices
Position of the safety devices
Fig. 18: Screw compressor with refrigeration dryer
(optional), tank (optional) and/or frequency converter 3 –
15 kW )

Description of the installed
safety devices
Fig. 19: Emergency stop button
2.5 Environmental protection

2.6 Instructions on the machine

Technical data
For more information refer to the technical data sheet.
3.1 Serial tag
Fig. 20: Serial tag

3.2 General specifications
Operating conditions
Oil
Consumables