BUSCH RA 0165 D User manual

Instruction Manual
R 5 ATEX
Oil-Lubricated Rotary Vane Vacuum Pumps
RA 0165 D, RA 0205 D, RA 0255 D, RA 0305 D
0870570604/-0007_en / Original instructions / Modifications reserved 23/11/2017
Ateliers Busch S.A.
Zone industrielle, 2906 Chevenez
Switzerland

Table of Contents
2 / 32 0870570604_RA0165-0305D_Ex_-0007_IM_en
Table of Contents
1 Safety........................................................................................................................... 4
2 Product Description ..................................................................................................... 5
2.1 Operating Principle............................................................................................... 6
2.2 Application ........................................................................................................... 6
2.3 Accessories ........................................................................................................... 6
2.3.1 Gas Ballast Valve........................................................................................6
2.3.2 Inlet Filter ..................................................................................................7
2.3.3 Water-oil Heat Exchanger..........................................................................7
2.3.4 Temperature Switch...................................................................................7
2.3.5 Resistance Thermometer............................................................................7
2.3.6 Level and Temperature Switch...................................................................7
2.3.7 Pressure Switch..........................................................................................7
2.3.8 Pressure Transmitter ..................................................................................7
2.4 Explanation of ATEX Classification ........................................................................8
2.5 Safety concept...................................................................................................... 8
2.5.1 ATEX Classifications and Associated Accessories ........................................8
2.5.2 P&ID "Piping and Instrumentation Diagram" ............................................9
3 Transport ..................................................................................................................... 9
4 Storage......................................................................................................................... 10
5 Installation................................................................................................................... 11
5.1 Installation Conditions ..........................................................................................11
5.2 Connecting Lines / Pipes ......................................................................................12
5.2.1 Suction Connection....................................................................................12
5.2.2 Discharge Connection................................................................................13
5.2.3 Cooling Water Connection (Optional) .......................................................13
5.3 Earth Connection.................................................................................................. 14
5.4 Filling Oil..............................................................................................................14
5.5 Electrical Connection ............................................................................................15
5.5.1 Wiring Diagram Three-Phase Motor ..........................................................16
5.6 Electrical Connection of the Monitoring Devices ................................................... 17
5.6.1 Wiring Diagram Temperature Switch .........................................................17
5.6.2 Wiring Diagram Resistance Thermometer ..................................................17
5.6.3 Wiring Diagram Pressure Switch ................................................................18
5.6.4 Wiring Diagram Pressure Transmitter.........................................................18
5.6.5 Wiring Diagram Level and Temperature Switch .........................................18
5.6.6 Wiring Diagram Level Switch.....................................................................18
5.7 Flowchart ............................................................................................................. 19
6 Commissioning............................................................................................................ 20
6.1 Conveying Condensable Vapours ......................................................................... 21
7 Maintenance................................................................................................................ 21
7.1 Maintenance Schedule.......................................................................................... 22
7.2 Oil Level Inspection .............................................................................................. 22
7.3 Oil and Oil Filter Change ......................................................................................23
7.4 Exhaust Filter Change ...........................................................................................25
7.5 Coupling Maintenance .........................................................................................26
8 Overhaul...................................................................................................................... 26
9 Decommissioning ........................................................................................................ 26
9.1 Dismantling and Disposal...................................................................................... 27

Table of Contents
0870570604_RA0165-0305D_Ex_-0007_IM_en 3
10 Spare Parts................................................................................................................... 27
11 Troubleshooting........................................................................................................... 28
12 Technical Data ............................................................................................................. 30
13 Oil ............................................................................................................................... 30
14 EU Declaration of Conformity ...................................................................................... 31

1 | Safety
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1 Safety
Prior to handling the machine, this instruction manual should be read and understood. If
anything needs to be clarified, please contact your Busch representative.
Read this manual carefully before use and keep for future reference.
This instruction manual remains valid as long as the customer does not change anything
on the product.
The machine is intended for industrial use. It must be handled only by technically trained
personnel.
Always wear appropriate personal protective equipment in accordance with the local
regulations.
The machine has been designed and manufactured according to state-of-the-art meth-
ods. Nevertheless, residual risks may remain. This instruction manual highlights potential
hazards where appropriate. Safety notes and warning messages are tagged with one of
the keywords DANGER, WARNING, CAUTION, NOTICE and NOTE as follows:
DANGER
... indicates an imminent dangerous situation that will result in death or serious injuries if
not prevented.
WARNING
... indicates a potentially dangerous situation that could result in death or serious injuries.
CAUTION
... indicates a potentially dangerous situation that could result in minor injuries.
NOTICE
... indicates a potentially dangerous situation that could result in damage to property.
NOTE
... indicates helpful tips and recommendations, as well as information for efficient and
trouble-free operation.

Product Description | 2
0870570604_RA0165-0305D_Ex_-0007_IM_en 5 / 32
2 Product Description
OF NP OS EF IN OUT GB AHE
AFOFPODPOSGDAMTBEB
IF
LS-0201 and
TS+0104
TSA or
TS+0101
FM
PSA or
PS+0301
TSA+0104
ECP ECI
IN Suction connection MTB Motor terminal box
OUT Discharge connection DA Directional arrow
OFP Oil fill plug EF Exhaust filter
OSG Oil sight glass NP Nameplate
ODP Oil drain plug OF Oil filter
EB Eye bolt AF Axial fan
GB Gas ballast valve OS Oil separator
AHE Air-oil heat exchanger FM Filter material
TS Temperature switch TSA Resistance thermometer
PS Pressure switch PSA Pressure transmitter
LS Level switch IF Inlet filter
ECP Pump earth connection ECI Inlet filter earth connection
NOTE
Technical term.
In this instruction manual, we consider that the term ‘machine’ refers to the ‘vacuum
pump’.

2 | Product Description
6 / 32 0870570604_RA0165-0305D_Ex_-0007_IM_en
2.1 Operating Principle
The machine works on the rotary vane principle.
The oil seals the gaps, lubricates the vanes and takes away compression heat.
The oil filter cleans the circulating oil.
Exhaust filters separate the oil from the discharged gas.
2.2 Application
The machine is intended for the suction of air and other dry, non-aggressive and non-
toxic gases.
Depending on the equipment, the machine is intended for suction of explosive gases
and/or dusts according to the data given on the nameplate of the machine (NP), see Ex-
planation of ATEX Classification [►8].
Conveying of other media leads to an increased thermal and/or mechanical load on the
machine and is permissible only after a consultation with Busch.
The machine is intended for the placement in a potentially explosive environment ac-
cording to the data given on the nameplate of the motor and the nameplate of the ma-
chine (NP), see Explanation of ATEX Classification [►8].
In case Busch delivered the machine without motor and coupling, the following must be
observed:
• In regards to its explosive atmosphere protection class, the motor and the coup-
ling must have at least the same ATEX classification as the machine for the outside
area “Outside (o)”.
The machine is capable of maintaining ultimate pressure.
The machine is suitable for continuous operation.
Permitted environmental conditions see Technical Data [►30].
2.3 Accessories
NOTE
Depending on the ATEX classification of the machine, some of the following accessories
may be mandatory, see ATEX Classifications and Associated Accessories [►8].
2.3.1 Gas Ballast Valve
The gas ballast valve mixes the process gas with a limited quantity of ambient air to
counteract the condensation of vapour inside the machine.

Product Description | 2
0870570604_RA0165-0305D_Ex_-0007_IM_en 7 / 32
2.3.2 Inlet Filter
The inlet filter protects the machine against dust and other solids in the process gas. The
inlet filter is available with a polyester (antistatic) cartridge.
2.3.3 Water-oil Heat Exchanger
In case of unfavourable ambient conditions a water-oil heat exchanger can be provided.
2.3.4 Temperature Switch
The temperature switch monitors the gas temperature of the machine.
The machine must be stopped when the gas reaches a certain temperature, see Wiring
Diagram Temperature Switch [►17].
2.3.5 Resistance Thermometer
The resistance thermometer monitors the gas temperature of the machine and optionally
the oil temperature.
A warning and an alarm signals must be set, see Wiring Diagram Resistance Thermo-
meter [►17].
2.3.6 Level and Temperature Switch
The level switch with integrated temperature switch monitors the oil level and the oil
temperature. It has one level switch point and two temperature switch points.
The machine must be stopped when the oil level is too low or, depending on the oil
type, when the oil reaches a certain temperature, see Oil [►30].
2.3.7 Pressure Switch
The pressure switch monitors the pressure in the oil separator.
The machine must be stopped when the gas reaches a certain pressure, see Wiring Dia-
gram Pressure Switch [►18].
2.3.8 Pressure Transmitter
The pressure transmitter monitors the pressure in the oil separator.
A warning and an alarm signals must be set, see Wiring Diagram Pressure Transmitter
[►18].

2 | Product Description
8 / 32 0870570604_RA0165-0305D_Ex_-0007_IM_en
2.4 Explanation of ATEX Classification
The ATEX classification is written on the nameplate of the machine (NP), see below a
marking example:
Explosion group
Equipment category for explosive gases
Equipment category for gas and dust
Equipment group II (not for mining application)
Explosion protection inside the machine
Explosion protection outside the machine
Design approved
according to ATEX Directive
Equipment group II (not for mining application)
Temperature class (T3=200°C)
Equipment category for explosive dusts
Max. temperature for surfaces in contact with dust
Special conditions for operation*
Special conditions for operation*
Temperature class (T4=135°C)
Max. temperature for surfaces in contact with dust
Explosion group
Inside (i)
Outside (o)
II 2G IIB T3 / 3D 80°C X
II 2GD IIB 135°C(T4) X
* The specific operating conditions are determined by the type of oil used in the pump
which will limit the max. allowable ambient temperature, see Technical Data [►30].
2.5 Safety concept
The safety concept is based on the prevention of sparks and excessive temperatures by
means of various accessories.
The monitoring accessories must be integrated into the system control such that opera-
tion of the machine will be inhibited if the safety limit values are exceeded. The limit val-
ues of each accessory are defined in the wiring diagram chapters, see Electrical Connec-
tion of the Monitoring Devices [►17].
To have more details about the monitoring procedure, see Flowchart [►19].
2.5.1 ATEX Classifications and Associated Accessories
The following table defines the obligatory accessories depending on the ATEX classifica-
tion.
(i) II 2G IIB T3 X
(o) II 2G IIB T4 X
(i) II 2G IIB T3 / 3D 80°C X
(o) II 2GD IIB 135°C(T4) X
(i) II 2G IIB T3 X
(o) II 2GD IIB 135°C(T4) X
(i) II 3D 80°C X
(o) No ATEX zone
(i) II 2G IIB T3 X
(o) No ATEX zone
ATEX
IF
TSA /
TS+0101
PSA /
PS+0301
ATEX
MOT
ATEX
CPL
ATEX
EF ECP ECI
X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X X X
X X
E
A
B
C
D
ATEX classification
IF Inlet filter TSA Resistance thermometer
TS Temperature switch PSA Pressure transmitter
PS Pressure switch MOT Motor
CPL Coupling EF Exhaust filter
ECP Pump earth connection ECI Inlet filter earth connection

Transport | 3
0870570604_RA0165-0305D_Ex_-0007_IM_en 9 / 32
2.5.2 P&ID "Piping and Instrumentation Diagram"
M
PSA+
0301
0201
LS-
PS+
0301
TSA+
0104
TSA+
0101
TS+
0101
M
PSA+
0301
0201
LS-
PS+
0301
TSA+
0104
TSA+
0101
TS+
0101
IF
M
IF
Optional
Optional
or
or
P&ID for classification B , C and E
P&ID for classification A P&ID for classification D
Optional
Optional
or
or
3 Transport
WARNING
Suspended load.
Risk of severe injury!
• Do not walk, stand or work under suspended loads.
NOTICE
In case the machine is already filled with oil.
Tilting a machine that is already filled with oil can cause large quantities of oil to in-
gress into the cylinder. Starting the machine with excessive quantities of oil in the
cylinder will immediately break the vanes and ruin the machine!
• Drain the oil prior to every transport or always horizontally transport the machine.

4 | Storage
10 / 32 0870570604_RA0165-0305D_Ex_-0007_IM_en
Machine weight:
see the technical data or the nameplate (NP)
WARNING
Lifting the machine using the motor eye bolt.
Risk of severe injury!
• Do not lift the machine using the eye bolt fitted to the motor. Only lift the machine as
previously shown.
• Check the machine for transport damage.
If the machine is secured to a base plate:
• Remove the machine from the base plate.
4 Storage
• Seal all apertures with adhesive tape or reuse provided caps.
Version with water-oil heat exchanger:
• Make sure that the cooling water has been completely removed, see Decommis-
sioning [►26].
If the machine is to be stored for more than 3 months:
• Wrap the machine in a corrosion inhibiting film.
• Store the machine indoors, dry, dust free and if possible in original packaging
preferably at temperatures between 0 ... 40 °C.

Installation | 5
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5 Installation
5.1 Installation Conditions
WARNING
The installation conditions are not respected in an ATEX environment.
Risk of severe injury!
Risk of explosion!
• Take care that the installation conditions are fully complied with.
~20 cm
~50 cm
~20 cm
~50 cm
• Make sure that the environment of the machine complies with the ATEX classification
of the machine according to the data given on the nameplate of the motor and the
nameplate of the machine (NP).
• Make sure that the ambient conditions comply with the Technical Data [►30].
• Make sure that the environmental conditions comply with the protection class of the
motor.
• Make sure that the installation space or location is vented such that sufficient cooling
of the machine is provided.
• Make sure that cooling air inlets and outlets are not covered or obstructed and that
the cooling air flow is not affected adversely in any other way.
• Make sure that the oil sight glass (OSG) remains easily visible.
• Make sure that enough space remains for maintenance work.
• Make sure that the machine is placed or mounted horizontally, a maximum of 1° in
any direction.
• Check the oil level, see Oil Level Inspection [►22].
• Make sure that all provided covers, guards, hoods, etc. are mounted.
Version with water-oil heat exchanger:
• Make sure that the cooling water complies with the requirements, see Cooling
Water Connection (Optional) [►13].
If the machine is installed at an altitude greater than 1000 meters above sea level:
• Contact your Busch representative, the motor should be derated or the ambient
temperature limited.

5 | Installation
12 / 32 0870570604_RA0165-0305D_Ex_-0007_IM_en
If additional electrical components not included in scope of delivery should be added:
• Make sure that they have a better or equal ATEX classification than that of the
machine, see the ATEX marking on the nameplate (NP).
For classification type “C” and "D" (see ATEX Classifications and Associated Accessor-
ies [►8]):
• Make sure that the installation space or location is ventilated enough in order to
prevent the formation of an explosive area.
5.2 Connecting Lines / Pipes
• Remove all protective caps before installation.
• Make sure that the connection lines cause no stress on the machine‘s connection; if
necessary use flexible joints.
• Make sure that the line size of the connection lines over the entire length is at least as
large as the connections of the machine.
In case of very long connection lines it is advisable to use larger line sizes in order to
avoid a loss of efficiency. Seek advice from your Busch representative.
WARNING
The connection lines can be built up by electrostatic charge.
Risk of severe injury!
Risk of explosion!
• The connection lines must be made out of conductive material or provisions must be
made against creating an electrostatic charge.
5.2.1 Suction Connection
WARNING
Unprotected suction connection.
Risk of severe injury!
• Do not put hand or fingers in the suction connection.
NOTICE
Intruding foreign objects or liquids.
Risk of damage to the machine!
If the inlet gas contains dust or other foreign solid particles:
• Install a suitable filter (5micron or less) upstream from the machine.
Connection size:
– G2
Depending on the specific order, other connection dimensions may apply.
If the machine is used as part of a vacuum system:
• Busch recommends the installation of an isolation valve in order to prevent the oil
from flowing back to the vacuum system.

Installation | 5
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5.2.2 Discharge Connection
CAUTION
The discharge gas contains small quantities of oil.
Risk to health!
If air is discharged into rooms where persons are present:
• Make sure that sufficient ventilation is provided.
Connection size:
– G2
Depending on the specific order, other connection dimensions may apply.
• Make sure that the discharged gas will flow without obstruction. Do not shut off or
throttle the discharge line or use it as a pressurised air source.
Unless the aspirated air is discharged to the environment right at the machine:
• Make sure that the discharge line either slopes away from the machine or provide a li-
quid separator or a siphon with a drain cock, so that no liquids can flow back into the
machine.
5.2.3 Cooling Water Connection (Optional)
Water-oil heat exchanger without inlet accessories WHE CWO CWI
CWO TV PSA
WBV WF CWIWHE
Water-oil heat exchanger with inlet accessories
(Available for all ATEX classifications)
(Only available for ATEX classifications C andD )
CWI Cooling water inlet PSA Pressure switch
CWO Cooling water outlet WBV Water bypass valve
WHE Water-oil heat exchanger WF Water filter
TV Thermostatic valve
The factory default adjustment of the thermostatic valve (TV) is set in position 2 (approx.
75°C oil temperature).
Connection size:
– 19 mm hose (CWI / CWO)
• Make sure that the cooling water complies with the following requirements:
Min. supply capacity l/min 2.5
Water pressure bar 2 ... 6

5 | Installation
14 / 32 0870570604_RA0165-0305D_Ex_-0007_IM_en
Supply temperature °C +5 ... +35
Required pressure differential across supply
and return
bar ≥ 1
• To reduce the maintenance effort and ensure a long product lifetime we recommend
the following cooling water quality:
Hardness mg/l (ppm) < 90
Properties Clean & clear
PH value 7 … 8
Particle size µm < 200
Chloride mg/l < 100
Electrical conductivity µS/cm ≤ 100
Free chloride mg/l < 0.3
Materials in contact with the cooling water Stainless steel, copper and cast iron
NOTE
Water hardness unit conversion.
1 mg/l (ppm) = 0.056 °dh (german degree) = 0.07 °e (english degree) = 0.1 °fH (french
degree)
5.3 Earth Connection
In order to prevent the machine from creating an electrostatic charge:
• Connect the earth connection of the machine (ECP)
If an inlet filter (IF) being installed:
• Connect the earth connection of the inlet filter (ECI) in addition to the earth con-
nection of the machine.
Earth connection of
the machine (ECP)
Earth connection of
the inlet filter (ECI)
5.4 Filling Oil
NOTICE
Use of an inappropriate oil.
Risk of premature failure!
Loss of efficiency!
• Only use an oil type which has previously been approved and recommended by
Busch.

Installation | 5
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For oil type and oil capacity see Technical Data [►30] and Oil [►30].
1
4
MAX
MIN
3
MAX
MIN
2
Busch Oil
Check oil level
1x o-ring, part no.:
0486 000 513
or
5.5 Electrical Connection
DANGER
Live wires.
Risk of electrical shock.
• Electrical installation work must only be executed by qualified personnel.
• Make sure that the power supply for the motor is compatible with the data on the
nameplate of the motor.
• Provide overload protection according to EN 60204-1 for the motor.
• Make sure that the motor of the machine will not be affected by electric or electro-
magnetic disturbance from the mains; if necessary seek advice from Busch.
• Connect the protective earth conductor.
• Electrically connect the motor.
NOTICE
Incorrect connection.
Risk of damage to the motor!
• The wiring diagrams given below are typical. Check the inside of the terminal box for
motor connection instructions/diagrams.

5 | Installation
16 / 32 0870570604_RA0165-0305D_Ex_-0007_IM_en
5.5.1 Wiring Diagram Three-Phase Motor
Delta connection (low voltage): Star connection (high voltage):
Double star connection, multi-voltage
motor with 9 pins (low voltage):
Star connection, multi-voltage motor
with 9 pins (high voltage):
Double star connection, multi-voltage
motor with 12 pins (low voltage):
4
4
4
Star connection, multi-voltage motor
with 12 pins (high voltage):
4
4
4
Delta connection, multi-voltage motor
with 12 pins (middle voltage):
4
4
4
NOTICE
Incorrect direction of rotation.
Risk of damage to the machine!
• Operation in the wrong direction of rotation can destroy the machine in a short time!
Prior to start-up, ensure that the machine is operated in the right direction.
• Determine the intended direction of rotation with the arrow (stuck on or cast).
• Jog the motor briefly.

Installation | 5
0870570604_RA0165-0305D_Ex_-0007_IM_en 17 / 32
• Watch the fan wheel of the motor and determine the direction of rotation just before
the fan wheel stops.
If the rotation of the motor must be changed:
• Switch any two of the motor phase wires.
5.6 Electrical Connection of the Monitoring Devices
NOTE
In order to prevent potential nuisance alarms, Busch allows that the control system is
configured with a time delay of 2 seconds.
NOTE
The accessories below are considered as standard.
If other specific components should be used, refer to the instruction manual of the ac-
cessory in question.
5.6.1 Wiring Diagram Temperature Switch
Part no.: 0651538812
Supplier reference: Trafag 414
P&ID position:
TS+/0101 “gas temp.”
Ui=24VDC ; Ii=100mA ; Pi=0.6W;
Li=0 µH; Ci=0 pF
Contact: Normally closed
2
1
T
1 = Brown ; 2 = White
Switch point: (factory default adjustment) Ttrip (TS+/0101) = 130°C
5.6.2 Wiring Diagram Resistance Thermometer
Part no.: 0651563 753 (with transmitter)
Supplier reference: Wika TR31
Connector: M12x1, 4-pin
P&ID position:
TSA+/0101 “gas temp.”
TSA+/0104 “oil temp.” (optional)
Ui=30VDC; Ii=120mA; Pi=750mW;
Li=0µH; Ci=29.7nF
4 ... 20 mA ► 0 ... 150 °C
1 2
4 3
3
1
+
-
1 = Brown ; 3 = Blue
Warning signal:
Twarning (TSA+/0101) = 135°C ► 18.4 mA
Twarning (TSA+/0104) = see Oil [►30]
Trip signal:
Ttrip (TSA+/0101) = 140°C ► 18.93 mA
Ttrip (TSA+/0104) = see Oil [►30]

5 | Installation
18 / 32 0870570604_RA0165-0305D_Ex_-0007_IM_en
5.6.3 Wiring Diagram Pressure Switch
Part no.: 0653539030
Supplier reference: United Electric Controls
H100 (100 Series)
Maintenance procedure:
Procedure B
P&ID position: PS+/0301
Ui=49VDC ; Ii=3A ; Li=0 µH; Ci=0 pF
Contact: Normally closed
2
1
P
Switch point: P (PS+/0301) = 1500 hPa (mbar) abs. (factory default adjustment)
5.6.4 Wiring Diagram Pressure Transmitter
Part no.: 0653563 751
Supplier reference: Wika IS-3
Connector: M12x1, 4-pin
P&ID position: PSA+/0301
Ui=30VDC; Ii=100mA; Pi=750mW;
Li=0µH; Ci=16.5nF
4 ... 20 mA ► 0 ... 1 bar (relative)
1 2
4 3
3
1
+
-
1 = Brown ; 3 = Blue
Warning signal:
Pwarning (PSA+/0301) = 0.4* bar ► 10.4 mA
*1400 hPa (mbar) abs.
Trip signal:
Ptrip (PSA+/0301) = 0.5* bar ► 12 mA
*1500 hPa (mbar) abs.
5.6.5 Wiring Diagram Level and Temperature Switch
Part no.: 0652563 749
Supplier reference: Wika HLS-T-Exi
Connector: M12x1, 4-pin
P&ID position: LS-/0201 and TS+/0104
Ui=36VDC ; Ii=100mA ; Pi=2.5 W;
Li=0µH ; Ci=0 pF
Contact:
Oil level is OK ► Normally closed
Temperature is OK ► Normally closed
Switch points:
L (LS-/0201) pin 1 + 4 = low level
T1 (TS+/0104) pin 1 + 2 = 110 °C*
T2 (TS+/0104) pin 1 + 3 = 130 °C*
1 2
4 3
4
1
L
2
1
T1
3
1
T2
1 = Brown ; 2 = White ;
3 = Blue ; 4 = Black
* The switch point value depends on the
oil type, see Oil [►30].
5.6.6 Wiring Diagram Level Switch
Part no.: 0652000 009
Supplier reference: Kobold NV-1103R4
P&ID position: LS-/0201
Ui=30VDC ; Ii=100mA ; Pi=1.2 W;
Li=0µH ; Ci=0 pF
Contact:
Oil level is OK ► Normally closed
Switch points: L (LS-/0201) = low level
2
1
L
1 = Blue; 2 = Brown

Installation | 5
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5.7 Flowchart
The machine safety depends on the monitoring accessories sequencing according to the
following flowchart.
Gas pressure
Gas temperature
Start
Cat. 2(i)
P < P warning?
Oil level
sufficient in oil mist
separator?
High gas pressure !
Warning: P < P trip?
Cat. 2(i)
P < P switch point?
YES
NO
OR
YES
NO NO
YES
YES
NO
NO
YES
Cat. 2(i)
T < T warning? High gas temperature !
Warning: T < T trip?
NO
YES
YES
NO
Cat. 2(i)
T < T switch point?
PSA+/0301
PS+/0301
Oil level
TSA+/0101
TS+/0101
TSA+/0104
TS+/0104
Oil temperature
T < T switch point?
T < T warning? High oil temperature !
Warning:
T < T trip?
YES YES
NO
NO
machine
in function? Start the machine
NO
YES
YES
Stop button activated?
YES
NO
Stop the machine
Stop the machine
with anomaly
information
OR
OR LS-/0201
(Optional)
(Optional)

6 | Commissioning
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6 Commissioning
NOTICE
The machine is shipped without oil.
Operation without oil will ruin the machine in short time!
• Prior to commissioning, the machine must be filled with oil, see Filling Oil [►14].
CAUTION
During operation the surface of the machine may reach temperatures of more than
70°C.
Risk of burns!
• Avoid contact with the machine during and directly after operation.
CAUTION
Noise of running machine.
Risk of damage to hearing!
If persons are present in the vicinity of a non noise insulated machine over extended
periods:
• Make sure that ear protection is being used.
• Make sure that the installation conditions (see Installation Conditions [►11]) are
complied with.
• Switch on the machine.
• Make sure that the maximum permissible number of starts does not exceed 6 starts
per hour.
Version with water-oil heat exchanger:
• Open the water supply.
• After few minutes of operation, check the oil level and top up if necessary.
As soon as the machine is operated under normal operating conditions:
• Measure the motor current and record it as reference for future maintenance and
troubleshooting work.