CS.65 .. 95 with SE-i1, Y/Δ start, stepped capacity control, full sensor kit

Compact screw compressors CS.65 .. CS.95 with protection device SE-i1, star-delta start and stepped capacity control, full sensor kit
Compact screw compressors CS.65 .. CS.95 with protection device SE-i1, star-delta start and stepped capacity control, full sensor kit

Last revision of the diagram:

03.02.2025

Abbr.

Component

B01

Compressor protection device

B02

Discharge gas temperature sensor

B03 .. 08

Temperature sensors in motor windings

B10

High pressure switch

B11

Low pressure switch

B16

additional discharge gas temperature sensor

B21

Optional temperature sensor

B25

LI control thermostat

B26

Control thermostat for additonal oil injection, CSV.: for oil cooling

B30

Oil level switch

B50

High pressure transmitter

B51

Low pressure transmitter

B53

ECO switch-on

B60

Overload protective device

B61

Overload protective device for second part winding

E01

Oil heater

E02

Terminal box cover heater

F01

Main fuse

F02

Compressor fuse

F03

Control circuit fuse

F04

Fuse of compressor protection device or compressor module

F05

Fuse of oil heater

F07

Fuse of terminal box cover heater

F08

Fuse of rotation direction monitoring

K01

Superior controller

K01T

Time relay for part winding start or for star-delta start

K02T

Time relay for minimum shut-off period of compressor

K06T

Time relay for capacity regulator

K07T

Time relay for start unloading

K10

Auxiliary relay for status message of compressor

K11

Auxiliary relay for status message of compressor

M01

Compressor motor

M05

SV for liquid injection with LI, RI or CIC injection valve

M06

SV for economiser (ECO)

M11

SV for capacity regulator 1, CR1, CR+, CRII-2 or start unloading

M12

SV for capacity regulator 2, CR2, CR- or CRII-1

M13

SV for capacity regulator 3, CR3 or CRII-3

M14

SV for capacity regulator CR4

M20

SV for liquid line

M30

Evaporator fan

M42

SV for additional oil injection

M43

SV for oil cooler line

P03

Light: time delay is activ

P05

Light: compressor fault

P11

Light: FI fault

Q01

Main switch

Q02

Contactor for first part winding (PW) or main contactor (Y/Δ) or compressor contactor (DOL)

Q03

Contactor for second part winding (PW) or delta contactor (Y/Δ)

Q04

Star contactor (Y/Δ)

Q05

Control transformer fuse

R06

Interference suppressor (if required, e. g. from Murr Elektronik)

S01

Control switch (on-off)

S02

Reset of compressor safety chain

T01

Control transformer (example for 230 V, required according to EN60204-1)

T02

Frequency inverter (FI)

Technical documents for further information: