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5.4.2
CM-SW-01
6.6.2
Lubrication/oil level monitoring
• Check the lubrication of the compressor directly after
Standard for all CSW105 compressors
the compressor start.
The compressor module integrates the entire electronic
The oil level must be visible in the zone of both sight
periphery of the compressor: It allows monitoring the
glasses.
essential operating parameters of the compressor: mo-
tor and discharge gas temperature, phase and rotation
• Check the oil level repeatedly within the first hours of
direction monitoring, oil supply and application limits
operation!
and thus protects the compressor from operation under
During the start phase, oil foam may arise but its level
critical conditions. For further information, see Tech-
should decrease at stable operating conditions. Other-
nical Information ST-150.
wise high proportions of liquid in the suction gas are
suspected.
NOTICE
!
!
The compressor module may be damaged or
NOTICE
fail!
!
!
Risk of wet operation!
Never apply any voltage to the terminals of CN7
Maintain the discharge gas temperature well
to CN12 – not even for test purposes!
above the condensing temperature: at least
The voltage applied to the terminals of CN13
20 K.
must not exceed 10 V!
At least 30 K for R407A, R407F and R22.
The voltage applied to terminal 3 of CN14 must
not exceed 24 V! Do no apply voltage to the
NOTICE
other terminals!
!
!
Risk of compressor failure due to liquid slug-
ging!
The following components are completely installed and
Before adding larger quantities of oil: check the
wired in the state of delivery:
oil return!
• Slider position indicator.
• Oil monitoring (OLC-D1).
6.6.3
Set high pressure and low pressure switches
(HP + LP)
• Solenoid valves for capacity control and V
Check exactly the cut-in and cut-out pressure values
• Discharge gas temperature sensor.
according to the operating limits by testing them.
• Low pressure and high pressure transmitter.
Modification to these components or their wiring is not
6.6.4
Set the condenser pressure
required and should not be done without consulting
• Set the condenser pressure so that the minimum
BITZER.
pressure difference is reached within 20 s after the
The following components are not installed and wired in
compressor start.
the state of delivery and need to be connected:
• Avoid quick pressure reduction with finely stepped
• Motor temperature monitoring (PTC sensor in motor
pressure control.
winding).
Application limits, see BITZER SOFTWARE, manual
• Phase monitoring (in case of a phase failure or inad-
SH-170 and brochure SP-171 (CSH) / SP-172 (CSW).
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.
SB-170-9
SB-170-9
SB-170-9 RUS
5.4.3
SE-i1
6.6.5
Vibrations and frequencies
This protection device with extended monitoring func-
Check the system carefully to detect any abnormal vi-
tions can be used as an option for all HS.53 .. HS.85
bration, check particularly pipelines and capillary tubes.
compressors and CSH and CSW compressors.
In case of strong vibrations, take mechanical meas-
ures: e.g. use pipe clamps or install vibration dampers.
Monitoring functions:
• Temperature monitoring.
NOTICE
!
!
Risk of burst pipes and leakages on the com-
• Monitoring of the PTC control circuit to detect any
pressor and system components!
short-circuit or line break/sensor failure.
Avoid strong vibrations!
• Rotation direction monitoring.
• Monitoring of phase failure and asymmetry.
6.6.6
Checking the operating data
• Monitoring of the maximum cycling rate.
• Evaporation temperature
For further information, see Technical Information
• Suction gas temperature
CT-110.
• Condensing temperature
• Discharge gas temperature
5.4.4
SE-E2
– min. 20 K above condensing temperature
Optional protection device for operation with frequency
inverter and soft starter (for a ramp time shorter than
– min. 30 K above condensing temperature for
1 s).
R407C, R407F and R22
• Dimensions and integration in the control identical to
– max. 120°C on the outside of the discharge gas
SE-E1.
line
• Suitable for all CS. compressors.
• Oil temperature directly under the oil sight glass
• Monitoring functions are basically identical to those
• Cycling rate
of SE-E1. However, the SE-E2 monitors phase fail-
.
• Current values
ure during the entire running time of the compressor.
i
• Voltage
For further information, see Technical Information
ST-122.
• Prepare data protocol.
Application limits, see BITZER SOFTWARE, manual
5.4.5
Monitoring of the oil circuit
SH-170 and brochure SP-171 (CSH) / SP-172 (CSW).
• 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.
25
29
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