Reciprocating compressors

The tables below give an initial overview of which oil monitoring is available for which compressors. The actual choices when ordering the compressor are decisive.
The available devices can usually be found also in the BITZER SOFTWARE, after choosing the compressor, in the tab "Technical Data".
In which cases oil monitoring is necessary or recommended is partly also stated in the respective operating instructions of the compressor.

Semi-hermetic reciprocating compressors

Since 2024, most semi-hermetic reciprocating compressors have been equipped with the IQ Module CM-RC-02 as standard, or it is available as an option. The following variants result for oil monitoring:

Overview oil monitoring for semi-hermetic reciprocating compressors

Compressor

Oil monitoring without CM-RC
resp. with CM-RC-02 in protection mode

Oil monitoring with CM-RC-01

Oil monitoring with CM-RC-02

ECOLINE with centrifugal lubrication

2KES .. 2FES
2EES .. 2CES

Option:
OLC-K1 with 115 V or 230 V

--

in compressor operation mode:
OLS

with extension board CM-IO-A:
OLS or OLM-IQ

with extension board CM-IO-B:
OLS and OLM-IQ

4FES .. 4BES
4VES .. 4NES

Option:
OLC-K1 with 115 V or 230 V

Standard:
OLC-D1-K

with OLM-IQ:
OLC-D1-K additionally possible

in compressor operation mode:
OLS

with extension board CM-IO-A:
OLS or OLM-IQ

with extension board CM-IO-B:
OLS and OLM-IQ

Tandem
22EES .. 22CES

Option:
2 x OLC-K1 with 115 V or 230 V

--

--

Tandem
44FES .. 44CES
44VES .. 44NES

Option:
2 x OLC-K1 with 115 V or 230 V

Standard:
2 x OLC-D1-K

with OLM-IQ:
OLC-D1-K additionally possible

in compressor operation mode:
2 x OLS

with extension board CM-IO-A:
2 x OLS or OLM-IQ

with extension board CM-IO-B:
2 x OLS and OLM-IQ

ECOLINE with oil pump

4VE .. 4NE
4JE .. 4FE
6JE .. 6FE
8GE .. 8FE

Options:
Delta-PII with 115 .. 230 V
MP54 with 115 / 230 V

Standard:
DP

with OLM-IQ:
DP additionally possible

in compressor operation mode:
DP

with extension board CM-IO-A:
DP or OLM-IQ

with extension board CM-IO-B:
DP and OLM-IQ

Tandem
44JE .. 44FE
66JE .. 66FE

Options:
2 x Delta-PII with 115 .. 230 V
2 x MP54 with 115 / 230 V

Standard:
2 x DP

with OLM-IQ:
DP additionally possible

in compressor operation mode:
2 x DP

with extension board CM-IO-A:
2 x DP or OLM-IQ

with extension board CM-IO-B:
2 x DP and OLM-IQ

2-stage compressors

S4T-5.2 .. S4G-12.2
S6J-16.2 .. S6F-30.2

Options:
Delta-PII with 115 .. 230 V
MP54 with 115 / 230 V

--

--

Tandem
S66J-32.2 .. S66F-60.2

Options:
2 x Delta-PII with 115 .. 230 V
2 x MP54 with 115 / 230 V

--

--

OCTAGON for subcritical R744 applications

2NSL .. 2FSL
2ESL .. 2CSL
4FSL .. 4CSL
4VSL .. 4NSL

Option:
OLC-K1 with 115 V or 230 V

--

in compressor operation mode:
OLS

with extension board CM-IO-A:
OLS or OLM-IQ

with extension board CM-IO-B:
OLS and OLM-IQ

ECOLINE for subcritical R744 applications

2MME .. 2FME
2EME .. 2DME

Option:
OLC-K1 with 115 V or 230 V

--

in compressor operation mode:
OLS

with extension board CM-IO-A:
OLS or OLM-IQ

with extension board CM-IO-B:
OLS and OLM-IQ

4FME .. 4DME
4TME .. 4PME

Option:
OLC-K1 with 115 V or 230 V

Standard:
OLC-D1-K

with OLM-IQ:
OLC-D1-K additionally possible

in compressor operation mode:
OLS

with extension board CM-IO-A:
OLS or OLM-IQ

with extension board CM-IO-B:
OLS and OLM-IQ

6TME .. 6PME

Option:
Delta-PII with 115 .. 230 V

Standard:
DP

with OLM-IQ:
DP additionally possible

in compressor operation mode:
DP

with extension board CM-IO-A:
DP or OLM-IQ

with extension board CM-IO-B:
DP and OLM-IQ

4FMEM .. 4DMEM
4TMEM .. 4PMEM
6TMEM .. 6PMEM

Option:
Delta-PII with 115 .. 230 V

--

in compressor operation mode:
DP

with extension board CM-IO-A:
DP or OLM-IQ

with extension board CM-IO-B:
DP and OLM-IQ

8VME .. 8TME

--

--

(on request)

ECOLINE for transcritical R744 applications

2MTE .. 2KTE

Option:
OLC-K1 with 115 V or 230 V

--

in compressor operation mode:
OLS

with extension board CM-IO-A:
OLS or OLM-IQ

with extension board CM-IO-B:
OLS and OLM-IQ

4PTE .. 4KTE
4JTE .. 4CTE

4PTEU .. 4KTEU
4JTEU .. 4CTEU

Option:
OLC-K1 with 115 V or 230 V

Standard:
OLC-D1-K

with OLM-IQ:
OLC-D1-K additionally possible

in compressor operation mode:
OLS

with extension board CM-IO-A:
OLS or OLM-IQ

with extension board CM-IO-B:
OLS and OLM-IQ

4MTEM .. 4KTEM
4JTEM .. 4CTEM

4MTEMU .. 4KTEMU
4JTEMU .. 4CTEMU

Option:
Delta-PII with 115 .. 230 V

--

in compressor operation mode:
DP

with extension board CM-IO-A:
DP or OLM-IQ

with extension board CM-IO-B:
DP and OLM-IQ

6FTE .. 6CTE

6FTEU .. 6CTEU

Option:
Delta-PII with 115 .. 230 V

Standard:
DP

with OLM-IQ:
DP additionally possible

in compressor operation mode:
DP

with extension board CM-IO-A:
DP or OLM-IQ

with extension board CM-IO-B:
DP and OLM-IQ

6FTEM .. 6CTEM

6FTEMU .. 6CTEMU

Option:
Delta-PII with 115 .. 230 V

--

in compressor operation mode:
DP

with extension board CM-IO-A:
DP or OLM-IQ

with extension board CM-IO-B:
DP and OLM-IQ

8FTE .. 8CTE

--

Standard:
DP

with OLM-IQ:
DP and OLM-IQ

--

ECOLINE T for high temperature heat pumps

2EESH .. 2CESH

Option:
OLC-K1 with 115 V or 230 V

Standard:
OLC-D1-K

in compressor operation mode:
OLS

with extension board CM-IO-A:
OLS or OLM-IQ

with extension board CM-IO-B:
OLS and OLM-IQ

4FESH .. 4CESH

Option:
OLC-K1 with 115 V or 230 V

Standard:
OLC-D1-K

with OLM-IQ:
OLC-D1-K additionally possible

in compressor operation mode:
OLS

with extension board CM-IO-A:
OLS or OLM-IQ

with extension board CM-IO-B:
OLS and OLM-IQ

4VEH .. 4NEH

Options:
Delta-PII with 115 .. 230 V
MP54 with 115 / 230 V

Standard:
DP

with OLM-IQ:
DP additionally possible on request

in compressor operation mode:
DP

with extension board CM-IO-A:
DP or OLM-IQ

with extension board CM-IO-B:
DP and OLM-IQ

4JEH .. 4FEH
6JEH .. 6FEH

Options:
Delta-PII with 115 .. 230 V
MP54 with 115 / 230 V

Standard:
DP

with OLM-IQ:
DP additionally possible on request

in compressor operation mode:
DP

with extension board CM-IO-A:
DP or OLM-IQ

with extension board CM-IO-B:
DP and OLM-IQ

ECOLINE P for R290 / R1270

2KESP .. 2FESP
2EESP .. 2CESP
4FESP .. 4CESP
4VESP .. 4NESP

Option:
OLC-K1 with 115 V or 230 V

--

--

4JEP .. 4FEP
6JEP .. 6FEP
8GEP .. 8FEP

Options:
Delta-PII with 115 .. 230 V
MP55 with 230 V (without time relay)

--

--

ECOLINE for explosion protected areas

2KES.EX .. 2CES.EX

2KESP.EX .. 2CESP.EX

Standard:
OLC explosion protected

--

--

4FE.EX .. 4BE.EX
4VE.EX .. 4NE.EX
4JE.EX .. 4FE.EX
6JE.EX .. 6FE.EX
8GE.EX .. 8FE.EX

4FEP.EX .. 4CEP.EX
4VEP.EX .. 4NEP.EX
4JEP.EX .. 4FEP.EX
6JEP.EX .. 6FEP.EX
8GEP.EX .. 8FEP.EX

Standard:
Delta-PII INT250, Ex

--

--

ECOLINE VARISPEED

2DES-3.F1

Option:
OLC-K1 with 115 V or 230 V

--

--

4FE-5.F1 .. 4DE-5.F1
4DE-7.F3 .. 4CE-9.F3
4VE-7.F3 .. 4NE-20.F4

Option:
Delta-PII with 115 .. 230 V

--

--

Compressors for R410A

4FDC .. 4CDC
4VDC .. 4NDC

Option:
OLC-K1 with 115 V or 230 V

--

--

Series ".2"

4Z-5.2 .. 4N-20.2

Options:
Delta-PII with 115 .. 230 V
MP54 with 115 / 230 V

--

--

Open drive reciprocating compressors

Overview oil monitoring for open drive reciprocating compressors (all without CM-RC module)

Compressor

Oil monitoring

Series ".2"

2T.2 .. 2N.2
4T.2 .. 4G.2
6H.2 .. 6F.2
S6H.2 .. S6F.2

Options:
Delta-PII with 115 .. 230 V
MP54 with 115 / 230 V

For R717 (ammonia)

W2TA .. W2NA
W4TA .. W4NA
W4HA .. W4GA
W6HA .. W6FA

Option:
MP55 with 115/230 V

On request:
Delta-PII with 115 .. 230 V