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5.4.2
CM-SW-01
10 Tightening torques for screwed connections
Mind when mounting or replacing parts:
Standard for all CSW105 compressors
• Clean threads carefully.
The compressor module integrates the entire electronic
periphery of the compressor: It allows monitoring the
• Gaskets:
essential operating parameters of the compressor: mo-
– Use new gaskets only!
tor and discharge gas temperature, phase and rotation
direction monitoring, oil supply and application limits
– Do not oil gaskets with metallic support.
and thus protects the compressor from operation under
– Flat gaskets may be moistened slightly with oil.
critical conditions. For further information, see Tech-
nical Information ST-150.
• Wrap plugs with sealing tape or coat them with liquid
sealing agent.
NOTICE
• Admissible screwing methods:
!
!
The compressor module may be damaged or
fail!
– Tighten with calibrated torque spanner to indic-
Never apply any voltage to the terminals of CN7
ated torque.
to CN12 – not even for test purposes!
– Tighten with pneumatic impact wrench and
The voltage applied to the terminals of CN13
retighten with calibrated torque spanner to indic-
must not exceed 10 V!
ated torque.
The voltage applied to terminal 3 of CN14 must
not exceed 24 V! Do no apply voltage to the
– Tighten with electronically controlled angled
other terminals!
wrench to indicated torque.
• Tolerance range of tightening torques: ±6% of nom-
The following components are completely installed and
inal value
wired in the state of delivery:
• Tighten flange connections crosswise and in at least
• Slider position indicator.
2 steps (50/100%). Alternatively, they may be
• Oil monitoring (OLC-D1).
tightened in one step with a multi spindle tool.
• Solenoid valves for capacity control and V
10.1 Normal screwed connections
• Discharge gas temperature sensor.
• Low pressure and high pressure transmitter.
Size
Modification to these components or their wiring is not
M5
required and should not be done without consulting
M6
BITZER.
M8
The following components are not installed and wired in
M10
the state of delivery and need to be connected:
M12
• Motor temperature monitoring (PTC sensor in motor
M16
winding).
M20
• Phase monitoring (in case of a phase failure or inad-
M20 with CS.105
missibly high phase asymmetry).
Case A: Screws without flat gasket, property class 8.8
The compressor module internally supplies voltage to
or 10.9
the peripheral devices (solenoid valves, oil monitoring
device and slider position indicator) and to the terminal
Case B: Screws with flat gasket or gasket with metallic
strips CN7 to CN12.
support, property class 10.9
Please refer to the Technical Information ST-150 for in-
formation on all connections.
SB-170-9
SB-170-9
SB-170-9 RUS
.
i
Case A
Case B
7 Nm
9 Nm
16 Nm
23 Nm
40 Nm
42 Nm
80 Nm
80 Nm
125 Nm
150 Nm
220 Nm
220 Nm
220 Nm
400 Nm
5.4.3
SE-i1
10.2 Special screwed connections
This protection device with extended monitoring func-
Sealing plugs without gasket
tions can be used as an option for all HS.53 .. HS.85
compressors and CSH and CSW compressors.
Size
Brass
Monitoring functions:
1/8-27 NPTF
35 .. 40 Nm
• Temperature monitoring.
1/4-18 NPTF
50 .. 55 Nm
• Monitoring of the PTC control circuit to detect any
3/8-18 NPTF
85 .. 90 Nm
short-circuit or line break/sensor failure.
1/2-14 NPTF
95 .. 100 Nm
• Rotation direction monitoring.
3/4-14 NPTF
120 .. 125 Nm
• Monitoring of phase failure and asymmetry.
Sealing screws or plugs with aluminium gasket
• Monitoring of the maximum cycling rate.
Size
For further information, see Technical Information
CT-110.
M10
M18 x 1,5
5.4.4
SE-E2
M20 x 1,5
M22 x 1,5
Optional protection device for operation with frequency
inverter and soft starter (for a ramp time shorter than
M26 x 1,5
1 s).
M30 x 1,5
• Dimensions and integration in the control identical to
M48 x 1,5
SE-E1.
G1/4
• Suitable for all CS. compressors.
G1 1/4
• Monitoring functions are basically identical to those
Sealing screws or plugs with O-ring
of SE-E1. However, the SE-E2 monitors phase fail-
ure during the entire running time of the compressor.
Size
For further information, see Technical Information
1 1/8-18 UNEF
ST-122.
M22 x 1,5
M52 x 1,5
5.4.5
Monitoring of the oil circuit
• For short circuits without liquid injection (LI) for addi-
Sealing nuts with O-ring
tional cooling and for small system volume and small
refrigerant charge: Indirect monitoring with oil tem-
Thread
perature sensor (standard)
3/4-16 UNF
NOTICE
1-14 UNS
!
!
Lack of oil leads to a too high increase in tem-
1 1/4-12 UNF
perature.
1 3/4-12 UN
Risk of damage to the compressor!
2 1/4-12 UN
• For circuits with liquid injection (LI) for additional
These sealing nuts are normally used for Rotalock
cooling and / or for great system volume as well as
screwed joints.
parallel compounding: Monitor oil level directly with
AF: width across flats in mm
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.
Steel
15 .. 20 Nm
30 .. 35 Nm
50 .. 55 Nm
60 .. 65 Nm
80 .. 85 Nm
30 Nm
60 Nm
70 Nm
80 Nm
110 Nm
120 Nm
300 Nm
40 Nm
180 Nm
50 Nm
40 Nm
100 Nm
AF
22
50 Nm
30
85 Nm
36
105 Nm
50
150 Nm
65
180 Nm
25
33
33
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