Control Signal From Superior Controller; Connecting High-Pressure Switches Electrically; Close Module Housing; Electrical Connection Of The Enclosed Peripheral Devices - Bitzer KT-230-2 Technical Information

• Switch start signal (B1) as make contact and con-
nect:
to terminal strip CN11, terminal 1 and to terminal
strip CN7, terminal 5.
• As an alternative to CN7:5, the start signal can also
be connected to CN9:1 or CN14:3; always switch
against a 24 V signal from the compressor module.
• The start signal can also be transmitted directly via
Modbus to the CM-RC-01.
CM-RC-01 before serial number
815292000504FPXXXXXXXXX (previous version)
• In this module version, integrate the start signal (B1)
as a make contact in the safety chain in front of the
module (path 8).
8.2.5

Control signal from superior controller

This is the cable connection of the capacity control set
point, CRII. This connection is only required if the com-
pressor is equipped with capacity regulators.
• Connect Modbus cable to terminal strip CN14.
• Or connect analog signal to terminal strip CN13.
8.2.6 Connecting high-pressure switches
electrically
• Connect to terminal strip CN3.
• When the high pressure switch is not connected to
CN3: Connect contacts CN3:1 and CN3:2 with a
bridge.
8.2.7

Close module housing

• Check the cable connections of the protective con-
ductors for tightness.
• Replace the module housing cover and screw tight.
For 8-cylinder compressors: Fit terminal box cover
and screw tight.
KT-230-2
8.3 Electrical connection of the enclosed
peripheral devices
First mount these components ( see chapter Mounting
the peripheral devices enclosed in the delivery, page
14), then they can be connected electrically. Finally,
they must be activated with the BEST SOFTWARE
( see chapter Activating peripheral devices, page 28).
This chapter describes the electrical connection.
8.3.1 Connecting the application limit monitoring
electrically to the CM-RC-01
NOTICE
!
!
Incorrect measurement data leads to com-
pressor failure.
Do not interchange high- and low-pressure
transmitters. Check the stamped component
number exactly.
➙ Connect the cables of the two pressure transmitters
on the CM-RC-01 to terminal strip CN12 according
to the schematic wiring diagrams.
• High-pressure transmitter B6: 2CP5-71-47 to termin-
als 1, 2 and 3
• Low-pressure transmitter B7: 2CP5-71-49 to termin-
als 4, 5 and 6
8.3.2 Connect the additional fan (M2) electrically
to the CM-RC-01
• Connect the cable of the additional fan on the CM-
RC-01 to terminal strip CN5 according to the schem-
atic wiring diagrams.
• Connect the protective earth conductor to the earth-
ing terminal strip.
8.3.3 Connecting the RI system electrically to the
CM-RC-01
• Press the solenoid coil of the RI injection valve (Y5)
onto the armature. She locks.
• Plug the cable plug onto the solenoid valve and
tighten (5 Nm).
• Connect the RI injection valve cable to the CM-
RC-01, terminal block CN6, terminals 7 and 8, ac-
cording to the wiring diagrams.
• Connect the protective earth conductor to the earth-
ing terminal strip.
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