SB-520-2
26
4.5
Connections and dimensional drawing
1a (
)
HP
1/8-27 NPTF
3 (
)
HP
1/8-27 NPTF
1/8-27 NPTF
G 1/4
2b (
)
LP
2a (
)
LP
1/8-27 NPTF
Ø21
Ø12
1/8-27 NPTF
G 1/4
1b (
)
HP
19
5
20
Vi (–)
Vi (+)
17
M22x1,5
Ø332
Ø370
M16
Ø67
SL
465
170
55
450
821
217
594
635
458
356
536
1055
155
30
117
332
198
206
DL
4
1 (
)
HP
2 (
)
LP
161
12°
Ø294
Ø288
17
7b
1/8-27 NPTF
CR (–)
CR (+)
18
187
206
7c
21
G 1/4
22
465
G 1/4
24
7a
M22x1,5
M22x1,5
Fig. 2: Dimensional drawing OS.A9593 .. OS.A95103
Connection positions
1
High pressure connection (HP)
Connection for high pressure switch (HP)
1a
Additional high pressure connection (HP)
(not suitable for pressure measurement!)
1b
Connection for high pressure transmitter
(HP)
2
Low pressure connection (LP)
Connection for low pressure switch
2a
Additional low pressure connection (LP)
2b
Connection for low pressure transmitter
(LP)
3
Connection for discharge gas temperature
sensor (HP)
4
Connection for economiser (ECO)
Connection positions
HS.85: ECO valve with connection line
(option)
OS.85, OS.95, HS.95: ECO valve (option)
5
Connection/valve for oil injection
6
Oil pressure connection
HS.85 and OS.85: Oil drain (compressor
housing)
7
Oil drain (motor housing)
7a
Oil drain (suction gas filter)
7b
Oil drain from shaft seal (maintenance con-
nection)
7c
Oil drain hose (shaft seal)
8
Threaded bore for foot fastening
