Electrical Connection - Bitzer 2KES-05 Instructions De Service

DL
Fig. 20: 44JE-30(Y) .. 66FE-100(Y)
Connection positions
1 High-pressure connection (HP)
2 Connection for discharge gas temperature
sensor (HP) (in 4VE(S)-6Y .. 4NE(S)-20(Y)
alternative connection for CIC sensor)
3 Low pressure connection (LP)
4 CIC system: Injection nozzle (LP)
4b Connection for CIC sensor
4c Connection for CIC sensor (MP / operation
with refrigerant subcooler)
5 Oil fill plug
6 Oil drain
7 Oil filter (magnetic screw)
8 Oil return (oil separator)
8* Oil return for NH
9 Connection for oil and gas equalisation
(parallel operation)
9a Connection for gas equalisation (parallel
operation)
9b Connection for oil equalisation (parallel op-
eration)
10 Connection for oil heating
11 Oil pressure connection +
12 Oil pressure connection –
13 Cooling water connection
14 Intermediate pressure connection (MP)
15 Refrigerant injection (operation without li-
quid subcooler and with thermostatic ex-
pansion valve)
16 Connection for oil monitoring (opto-elec-
tronic oil monitoring device "OLC-K1" or
differential oil pressure switch "Delta-PII")
17 Refrigerant inlet on the subcooler
KB-104-7
16 5
M20x1,5 1/4-18 NPTF
with insoluble oil
3
SL 8
3/8-18 NPTF
Connection positions
18 Refrigerant outlet on the subcooler
19 Clamping area
20 Terminal plate
21 Maintenance connection for oil valve
22 Pressure relief valve to the atmosphere
(pressure side)
23 Pressure relief valve to the atmosphere
(suction side)
24 Compressor module
SL Suction gas line
DL Discharge gas line
Tab. 4: Connection positions
Dimensions (if specified) may have tolerances accord-
ing to EN ISO 13920-B.
The legend applies to all open and semi-hermetic
BITZER reciprocating compressors and contains con-
nection positions that do not occur in every compressor
series.

5 Electrical connection

Electrical connection of the ECOLINE VARISPEED
compressors:
• 2DES-3.F1Y
• 4FE-5.F1Y .. 4CE-6.F1Y
• 4DE-7.F3Y .. 4CE-9.F3Y
• 4VE-7.F3Y .. 4NE-20.F4Y
See enclosed Technical Information KT-210 or KT-220.
DL 11
7/16-20 UNF
12
7/16-20 UNF
17