CSH65 .. 95 with SE-E*, Y/Δ start, 4-step capacity control

CSH65 .. 95 with protection device SE-E*, star-delta start and 4-step capacity control
CSH65 .. 95 with protection device SE-E*, star-delta start and 4-step capacity control

Last revision of the diagram:

07.01.2022

Abbr.

Component

B01

Compressor protection device

B02

Discharge gas / oil temperature sensor

B03 .. 08

Temperature sensors in motor windings

B10

High pressure switch

B11

Low pressure switch

B25

LI control thermostat

B26

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

B30

Oil level switch

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

F05

Fuse of oil heater

F07

Fuse of terminal box cover heater

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

K04

Auxiliary relay for oil monitoring

K04T

Time relay for oil level switch

K05T

Time relay for oil supply monitoring

K18

Auxiliary relay: FI outputs power voltage/rotating field for motor

K19

Auxiliary relay: safety chain enabled

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

M42

SV for additional oil injection

M43

SV for oil cooler line

P04

Light: oil supply fault

P05

Light: compressor 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

S04

Reset of oil monitoring

T01

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

T02

Frequency inverter (FI)

Technical documents for further information: