Electrical Connection; Schematic Wiring Diagram For Csw105 - Bitzer CM-SW-01 Original-Gebrauchsanweisung

5 Electrical connection

Keep the compressor module energized when the mo-
tor is not running. This ensures an unloaded start. With
HS. and CS. compressors, the module activates the oil
heater, if necessary, thus ensuring the lubricity of the
oil even after a long standstill period.
De-energize the module only if you plan a long stand-
still period of the compressor or for maintenance pur-
poses.

5.1 Schematic wiring diagram for CSW105

Abbr. Component
B2 Superior controller
B5 Slider position indicator (SPI)
B6 High pressure transmitter
B7 Low pressure transmitter
F1 Main fuse
F2 Compressor fuse
F3 Control circuit fuse
F5 High pressure switch
F8 Oil level switch (minimum oil level)
F13 Overload protective device
F15 Oil level switch (maximum oil level, option of
the compressor)
F17 Control transformer fuse
F24 Phase monitoring fuse
F30 Fuse of compressor module
H10 Light "collective fault"
K1 Main contactor (star-delta)
K2 Delta contactor (star-delta)
K3 Star contactor (star-delta)
K4 Auxiliary relay
M1 Compressor
Q1 Main switch
R1 Oil heater
R2 Oil temperature sensor
R3..8 Temperature sensors in the motor
R10 Optional temperature sensor
S1 Control switch (on/off)
S2 Reset of CM-SW-01
T1 Control transformer (example for 230 V, re-
quired according to EN60204-1)
Y1 Solenoid valve "capacity regulator CR+"
Y2 Solenoid valve "capacity regulator CR-"
Y11 Solenoid valve "V
8
slider +"
i
Abbr. Component
Y12 Solenoid valve "V
Y13 Solenoid valve "oil return from the flooded
evaporator"
Tab. 1: Legend for CSW105 schematic wiring diagram with CM-
SW-01 and star-delta start
The CSW105 compressor has a connection for oil re-
turn as an option for systems with flooded evaporator.
For the connection position, see Operating Instructions
SB-170, chapter Mounting, Connections and dimen-
sional drawings, Position 17. The electrical integration
of this option is shown in the paths 24 to 26. The
switching times of the solenoid valve must be controlled
by the superior controller and individually tested for
each system.
slider -"
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ST-150-3