Technical Specifications - GEA Grasso M-Series Operating Manual

Description of Design and Function
8 --
9 Speed regulated
A Oil cooling
Code letter Oil cooling
A Water-cooled oil cooler
B Refrigerant cooled oil cooler
C Refrigerant injection
D Water and refrigerant cooled oil cooler
E Water or refrigerant cooled oil cooler and refrigerant injection
F Without oil cooler
Examples of designation
XA B - 6 A Singe stage screw compressor package Grasso SP1 with screw compressor 3250 m³/h
(XA), refrigerant NH
ume ratio (6)with oil fine separation and water-cooled oil cooler (A)
T A - 2 A Singe stage screw compressor package Grasso SP1 or SSP1 with screw compressor 1460
m³/h (T), refrigerant NH
ratio Vi = 3.6 (2) with oil fine separation and water-cooled oil cooler (A)
N A - 3 B Screw compressor package Grasso M with screw compressor 873 m³/h (N), refrigerant NH
and horizontally installed oil separator (A), fixed internal volume ratio Vi = 4.8 (3)with oil fine
separation and refrigerant-cooled oil cooler (A)
LD - 2 A Screw compressor package Grasso SPduo with 2 of screw compressors 544 m³/h (L),
refrigerant NH
ratio Vi = 3.6 (2) with oil fine separation and water-cooled oil cooler (A)
W E - 6 A (L) Two-stage screw compressor package with LP screw compressor 1940 m³/h (W), refriger-
ant NH
water-cooled oil cooler (A), HP-compressor 544 m³/h (L)
7.3

Technical specifications

Packages / chillers are designed and manufactured
for special fields of application. For technical specifi-
cations see the following.
– order specification,
32
and vertically installed oil separator (B), booster with fixed internal vol-
3
and horizontally installed oil separator (A), fixed internal volume
3
and DuoPack version or multiple configuration (D), fixed internal volume
3
two-stage package (E), LP-compressor as booster (6), with oil fine separation and
3
--
Vi = variable
– list of parameters,
–
general assembly drawing,
– P+I diagram.
GEA Refrigeration Germany GmbH | P_261511_1 | Generated 01.04.2015
Operating Manual | GEA Grasso M-Series
Screw Compressor Packages
3