SB-170-9 RUS
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SB-170-9
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5.4.2 CM-SW-01
Standard for all CSW105 compressors
The compressor module integrates the entire electronic
periphery of the compressor: It allows monitoring the
essential operating parameters of the compressor: mo-
tor and discharge gas temperature, phase and rotation
direction monitoring, oil supply and application limits
and thus protects the compressor from operation under
critical conditions. For further information, see Tech-
nical Information ST-150.
!
!
NOTICE
The compressor module may be damaged or
fail!
Never apply any voltage to the terminals of CN7
to CN12 – not even for test purposes!
The voltage applied to the terminals of CN13
must not exceed 10 V!
The voltage applied to terminal 3 of CN14 must
not exceed 24 V! Do no apply voltage to the
other terminals!
The following components are completely installed and
wired in the state of delivery:
• Slider position indicator.
• Oil monitoring (OLC-D1).
• Solenoid valves for capacity control and V
i
.
• Discharge gas temperature sensor.
• Low pressure and high pressure transmitter.
Modification to these components or their wiring is not
required and should not be done without consulting
BITZER.
The following components are not installed and wired in
the state of delivery and need to be connected:
• Motor temperature monitoring (PTC sensor in motor
winding).
• Phase monitoring (in case of a phase failure or inad-
missibly high phase asymmetry).
The compressor module internally supplies voltage to
the peripheral devices (solenoid valves, oil monitoring
device and slider position indicator) and to the terminal
strips CN7 to CN12.
Please refer to the Technical Information ST-150 for in-
formation on all connections.
5.4.3 SE-i1
This protection device with extended monitoring func-
tions can be used as an option for all HS.53 .. HS.85
compressors and CSH and CSW compressors.
Monitoring functions:
• Temperature monitoring.
• Monitoring of the PTC control circuit to detect any
short-circuit or line break/sensor failure.
• Rotation direction monitoring.
• Monitoring of phase failure and asymmetry.
• Monitoring of the maximum cycling rate.
For further information, see Technical Information
CT-110.
5.4.4 SE-E2
Optional protection device for operation with frequency
inverter and soft starter (for a ramp time shorter than
1 s).
• Dimensions and integration in the control identical to
SE-E1.
• Suitable for all CS. compressors.
• Monitoring functions are basically identical to those
of SE-E1. However, the SE-E2 monitors phase fail-
ure during the entire running time of the compressor.
For further information, see Technical Information
ST-122.
5.4.5 Monitoring of the oil circuit
• For short circuits without liquid injection (LI) for addi-
tional cooling and for small system volume and small
refrigerant charge: Indirect monitoring with oil tem-
perature sensor (standard)
!
!
NOTICE
Lack of oil leads to a too high increase in tem-
perature.
Risk of damage to the compressor!
• For circuits with liquid injection (LI) for additional
cooling and / or for great system volume as well as
parallel compounding: Monitor oil level directly with
opto-electronic oil level monitoring (option), see
chapter Opto-electronic oil level monitoring OLC-D1-
S, page 26. The connection is on the compressor
housing, see chapter Connections and dimensional
drawings, page 14, position 8.
SB-170-9
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Connection positions
1
High pressure connection (HP)
2
Additional high pressure connection (HP)
2a
Connection for high pressure transmitter
(HP)
CS.105: connected to the compressor
module
3
Low pressure connection (LP)
3a
Connection for low pressure transmitter
(LP)
CS.105: connected to the compressor
module
4
Oil sight glass
5
Oil valve for maintenance (standard) / con-
nection for oil equalisation (parallel opera-
tion)
6
Oil drain plug (motor body)
7
Connection for electro-mechanical oil level
switch for the replacement of CSH.1 with
CSH.3
8
Connection for opto-electronic oil level
switch (OLC-D1-S)
CS.105: connected to the compressor
module
9
Oil heater with heater sleeve (standard)
CS.105: connected to the compressor
module
10
Oil pressure connection
11
Connections for external oil cooler (op-
tional adapter)
11a
Outlet to the oil cooler
11b
Inlet/return from the oil cooler
12
Oil temperature sensor
CS.105: connected to the compressor
module
13
Connection for economiser (ECO, optional
shut-off valve, CSH65 and CSH75 with
pulsation muffler)
14
Threaded bore for pipe fixture for ECO or
LI line
15
Connection for liquid injection (LI, optional
shut-off valve)
16
Earth screw for housing
17
Connection for oil and gas return (for sys-
tems with flooded evaporator, optional ad-
apter)
18
Oil filter (maintenance connection)
21
Oil injection valve (internal)
22
Compressor module
Connection positions
23
Slider position indicator
SL
Suction gas line
DL
Discharge gas line
Tab. 8: Connection positions
Dimensions (if specified) may have tolerances accord-
ing to EN ISO 13920-B.
The legend applies to all CS. compressors and con-
tains connection positions that do not exist in every
compressor series.
5 Electrical connection
Compressors and electrical equipment comply with the
EU Low Voltage Directive 2014/35/EU.
Connect mains cables, protective earth conductors and
bridges (if needed) as specified on the labels in the ter-
minal box. Observe EN60204-1, the safety standard
series IEC60364 and national safety regulations.
!
!
NOTICE
Risk of short-circuit due to condensation water
in the terminal box!
Use only standardised cable bushings.
When mounting, pay attention to proper sealing.
Additionally earthing the compressor housing
DANGER
High electrostatic discharge voltage possible.
Risk of electric shock!
Also earth the compressor housing!
Connection, see position 16 in the dimensional draw-
ings.
5.1 Mains connections
When dimensioning motor contactors, feed lines and
fuses:
• Use the maximum operating current or maximum
power consumption of the motor as a basis.
• Select the contacts according to the operational cat-
egory AC3.
• Set the thermal overload relays to the maximum op-
erating current of the compressor.
