Pfeiffer Vacuum ACP 120G User manual

OPERATING INSTRUCTIONS EN
Translation of the original instructions
ACP 120G - ACG 600G
Industrial multistage Roots dry pump

Table of contents
2
Table of contents
1 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1.1 Applicable documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2.1 Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2.2 Pictographs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2.3 Instructions/Abbreviations used . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2.4 Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Protective equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Improper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Transport and storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Transport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Product description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Product identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.1 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.2 Product presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Man/machine interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Oil filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2.1 Oil filling caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3 Connection to the water circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3.1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4 Connection to the nitrogen circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.4.1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.5 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.5.1 Customer electrical installation protection. . . . . . . . . . . . . . . . . . . 21
5.5.2 Change of cabling in the motor terminal box. . . . . . . . . . . . . . . . . 22
5.5.3 Connecting of the thermal safeties . . . . . . . . . . . . . . . . . . . . . . . . 22
5.5.4 Connecting to the electric cabinet of the customer . . . . . . . . . . . . 23
5.5.5 Check of the rotation’s direction at initial start-up . . . . . . . . . . . . . 23
5.6 Connection to the pumping line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.6.1 Connection at pump inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.6.2 Connection at pump exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.7 Leak test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.1 Prerequisites to use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.2 Pump start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.2.1 Switch on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.3 Pump shut-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.3.1 Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.3.2 Prolonged stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.1 Safety and maintenance information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.1.1 How to contact us . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.2 Maintenance frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.3 Maintenance on the customer’s site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.4 Freeing up the FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.5 Ball bearing maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.5.1 Cover disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table of contents
3
7.5.2 Ball bearing disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.5.3 Refitting ball bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.6 Exhaust pipe maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.6.1 Dismantling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.6.2 Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.6.3 Leak test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.7 Standard repair exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.7.1 Disconnecting the pump from the installation . . . . . . . . . . . . . . . . 38
7.7.2 Draining the water circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.7.3 Draining the pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.7.4 Conditioning the pump for shipping. . . . . . . . . . . . . . . . . . . . . . . . 39
8 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
8.1 Shutting down for longer periods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
8.2 Re-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
8.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9 Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
9.1 What happens in the event of a defect . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
9.2 Troubleshooting guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
10 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
11 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
12 Technical data and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
12.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
12.2 Facilities characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
12.2.1 Environmental conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
12.2.2 Water characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
12.2.3 Nitrogen characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
12.2.4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
12.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
12.4 Weight distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
12.5 Maintenance area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Declaration of incorporation of partly completed machinery . . . . . . . . . . . 51

4
About this manual
1 About this manual
1.1 Validity
This operating manual is for customers of Pfeiffer Vacuum. It describes the functioning
of the designated product and provides the most important information for safe use of
the unit. The description follows applicable EU guidelines. All information provided in this
operating manual refers to the current state of the product's development. The documen-
tation remains valid as long as the customer does not make any changes to the product.
Up-to-date operating instructions can also be downloaded from
www.pfeiffer-vacuum.com.
This document is a translation of the original French instructions.
This manual covers products with the following part numbers:
1.1.1 Applicable documents
1.2 Conventions
1.2.1 Safety instructions
The safety instructions in Pfeiffer Vacuum operating instructions are the result of risk
evaluations and hazard analyses and are oriented on international certification stan-
dards as specified by UL, CSA, ANSI Z-535, SEMI S2, ISO 3864 and DIN 4844. In this
document, the following hazard levels and information are considered:
P/N Description
ACP120Gxxxx1xxxx1 models for ACP 120G
ACG600Gxxxx1xxxx1 models for ACG 600G
ACP 120G/ACG 600G Operating instructions
Declaration of incorporation Included with this manual
DANGER
Imminent danger
Indicates an imminent hazardous situation that will result in death or serious injury.
WARNING
Possibly imminent danger
Indicates an imminent hazardous situation that can result in death or serious injury.
CAUTION
Possibly imminent danger
Indicates an imminent hazardous situation that can result in minor or moderate injury.
NOTICE
Command or note
Command to perform an action or information about properties, the disregarding of
which may result in damage to the product.

About this manual
5
1.2.2 Pictographs
1.2.3 Instructions/Abbreviations used
1.2.4 Labels
Prohibition of an action to avoid any risk of accidents, the disregarding
of which may result in serious accidents
Warning of a displayed source of danger in connection with operation of
the unit or equipment
Command to perform an action or task associated with a source of dan-
ger, the disregarding of which may result in serious accidents
Important information about the product or this document
Work instruction: you must perform an operation here.
BF/FB Functional block
HP High pressure
BP/LP Low pressure
(M) Driving shaft
(m) Driven shaft
S1, S2, Sx Specific tools
Inspection instruction: you must check a key point on the illustration.
Instruction: you must discard the part when disassembling. When reassembling, this part
will be replaced by a new part.
Apply the stated tightening torque.
FC Variateur / Frequency converter
WATER IN Water circuit connection: input
PRESSURE MAX
101 PSI (7 bars)
Maximum pressure of water circuit
WATER OUT Water circuit connection: output
N2 Nitrogen circuit connection
EXHAUST Pump exhaust connection
Earth connection
200-230 V
380-480 V
This label indicates the mains voltage of the installation on which the
pump must be connected.
This label indicates the full load current value at the exit of the motor de-
pending on the mains voltage (see 12.2.4).
xx A
yy A

6
About this manual
It informs the user of the need to fill the pumps with oil (see 5.2).
6
This label warns the user against possible risk of injury due to any hand contact with
hot surfaces.
It states that protective gloves should be used before performing any intervention.
1
This label informs the user of oil to use.
5
NOTICE
ROOTS PUMP SHIPPED WITHOUT OIL
DRY PUMP SHIPPED WITHOUT OIL
See Operating Instructions
CAUTION !
PUMP TESTED WITH:
OIL A113
FOMBLIN FLUID
1 Hot surface label
2 Full load current label (see 5.5.4)
3 Full load current label
4 Manufacturer label (see 4.1)
5Oillabel
6 Oil filling label
5
HOT SURFACE
Contactwith pump bodies may cause burn.
Switchoff and wait until pumps cooled
beforeservicing.
WARNING
HOT SURFACE
Contactwith pump bodies may cause burn.
Switchoff and wait until pumps cooled
beforeservicing.
WARNING
1
1
4
2
3
6
WARNING
NOTICE
ROOTS PUMP SHIPPED WITHOUT OIL
DRY PUMP SHIPPED WITHOUT OIL
SEE OPERATING INSTRUCTIONS

Safety
7
2Safety
2.1 Safety precautions
Obligation to inform
Any person responsible for installing, using or maintaining the product must first read
the security instructions in this operating manual and comply with them.
It is the operating customer’s responsibility to protect all operators against the dan-
gers associated with the product, with the media pumped and with the entire instal-
lation.
Installation and use of the accessories
The products can be fitted with special accessories. The installation, use and refurbish-
ment of the connected accessories are described in detail in the respective manuals.
Only use original accessories.
Accessory part numbers: see Accessories.
WARNING
Hazards associated with non-compliant electrical installation
Safe operation after installation is the operator’s responsibility.
Connect the product to an installation that is compliant with local safety standards.
Do no carry out any alterations or modifications to the product on your own initiative.
Check that the pump is correctly connected to the emergency stop system for the
equipment (or pumping installation).
For specific questions, contact your service centers.
WARNING
Electric shock hazard in case of contact
When the main isolator is set at O, or when the emergency stop is activated, some in-
ternal components still have an electrical charge
Make sure that the mains connection is always visible and accessible so that it can
be unplugged at any time.
Disconnect the power cable from all power sources before starting any work on the
product.
WARNING
Danger due to lack of lock out/tag out (LO/TO) electrical device.
In order to properly secure the pump for installation and/or maintenance, it is required
to lock out/tag out the pump properly in accordance with OSHA requirement
29 CFR.1910.147.
WARNING
Other localised hazardous energies
Electrical circuits and other pressurized circuits, such as nitrogen and water are poten-
tial hazards.
Always lock out these energy sources before working on the product.

8
Safety
The potential risks with a dry pumping system involve electricity, the chemical processes,
hot surfaces, the pressurized nitrogen and water devices and the lubricant.
●Only qualified personnel trained in safety rules (EMC, electrical safety, chemical pol-
lution) may carry out the installation and maintenance described in this manual. Our
service centers can provide the necessary training.
●Do not remove the blanking plates sealing the inlet and exhaust ports if the product is
not connected to the pumping line.
●Do not operate the product unless the inlet and exhaust are connected to a vacuum
and exhaust pumping line.
●Do not expose any part of the human body to the vacuum.
●Comply with all safety and risk prevention instructions in accordance with local safety
standards.
●Regularly check compliance with all precautionary measures.
●Do not turn on the product if the covers are not in place.
2.2 Protective equipment
In some situations, personal protective equipment must be worn when handling the vac-
uum pump and its components. The owner must provide operators with the necessary
equipment. This equipment must be checked regularly and used in accordance with the
supplier's recommendations.
WARNING
Thermal safety
The motor is equipped with thermal safeties which deliver an information about the mo-
tor temperature level.
It is imperative to cable these thermal safeties to protect the motor.
Do not neutralize these safeties during the use.
WARNING
Risk associated with process gases
The user and/or integrator of the product is/are fully responsible for the operational safe-
ty conditions of the equipment. The manufacturer has no control over the types of gases
this pump is exposed to. Frequently process gases are toxic, flammable, corrosive, ex-
plosive and/or otherwise reactive. It is the user and/or the integrator's responsibility to
follow the necessary safety requirements. Toxic gases can cause serious injury or
death. Operators and users must:
Take the appropriate safety recommendations to prevent injury. Consult the respon-
sible department for instructions and safety information.
Hazardous gases from the pump can cause serious injury or death. Regula-
tions require to connect the pump’s exhaust to a facility hazardous gas ex-
haust system which incorporates appropriate filters, scrubbers, etc. This system
must meet all air and water regulations.
Check that the pump is correctly connected to the equipment (see Installation).
Contact the service center for further information.
DANGER
Health risk due to contact with toxic materials
The vacuum pump, pumping line components, and operating media may be contami-
nated with toxic, corrosive, reactive, or radioactive materials, depending on the process.
Wear appropriate safety equipment when pump is disconnected for maintenance,
while it is being re-installed, and during filling and draining of operating media.

Safety
9
2.3 Proper use
●The vacuum pump may only be used to generate a vacuum while pumping gases.
●The product may be used in an industrial environment.
●The pumping of condensable vapors.
●The continuously pumping for the inlet pressure > 50 hPa.
●The G version pump is compatible with traces of corrosive gases.
2.4 Improper use
Improper use will cause all claims for liability and warranties to be forfeited. Improper use
is defined as usage for purposes deviating from those mentioned above, especially:
●pumping of flammable and explosive mixtures
●pumping of corrosive gases (exception: pumps in G version)
●pumping of explosive media
●pumping of liquids
●pumping of dusts
●use of the vacuum pump to generate pressure
●operation in potentially explosive areas
●use of accessories or spare parts, which are not named in this manual
The product is not designed to carry people or loads and is not for use as a seat, step-
ladder or any other similar purpose.
WARNING
Risk of injury due to hot surfaces
For the operator's safety, the products are designed to avoid thermal risk. However, spe-
cific operating conditions may exist that require extra caution from users due to the high
temperatures (external surfaces > 70°C on the exhaust pipe).
Let the part cool before working on the product.
If necessary wear protective gloves according to directive EN 420.
kg
WARNING
Risk of injury due to falling objects
When transporting parts/components and during maintenance there is a danger of loads
slipping and falling down.
Carry small and medium-size parts/components with both hands.
Carry parts/components > 20 kg with a suitable lifting device.
Wear safety shoes with a steel toe in accordance with directive EN 347.
NOTICE
EC conformity
The manufacturer's declaration of conformity becomes invalid if the operator modifies
the original product or installs additional components.
Following installation into a plant and before commissioning, the operator must check
the entire system for compliance with the valid EU directives and reassess it accord-
ingly.

10
Transport and storage
3 Transport and storage
Upon delivery, check that the product has not been damaged during transport. If the
product is damaged, take the necessary measures with the carrier and notify the manu-
facturer. In all situations we recommend:
Keeping the product in its original packaging so it stays as clean as it was when dis-
patched by us. Only unpack the product once it has arrived at the location where it will
be used.
Keeping the packaging (recyclable materials) in case the product needs to be trans-
ported or stored.
Keeping the blanking plates in place on the inlet, exhaust and purge ports while the
product is not connected to the pumping line.
3.1 Transport
WARNING
Risk of injury associated with heavy loads
Given the weight of the product, it should be removed from its packaging only by per-
sonnel qualified and trained in handling heavy materials.
Use the lifting rings and devices provided with the product.
The manufacturer cannot be held liable for the consequences of using lifting devices
other than those provided.
WARNING
Risk of tilting
Even though compliance with EEC safety rules is guaranteed, all necessary precautions
should be taken when moving, installing and operating the product.
Do not place the product on an inclined plane: its weight could cause the operator to
be dragged.
Only use castors to move it short distances.
Place it on a flat, hard floor.
Do not push the product sideways.
Adjust the levelling feet for operation to make sure that the pump is not supported by
the castors. (Refer to Technical data and dimensions in these operating instruc-
tions for location of the center of gravity.)

Transport and storage
11
3.2 Storage
If the new pump is going to be put into storage:
Keep the pump wrapped in its protective film.
It is absolutely necessary to leave the inlet and exhaust blanking plates in place be-
cause the pump has been pressurized with dry nitrogen.
Store the pump according to storage temperatures (see 12.2.1).
If the inlet and exhaust blanking plates have been removed, there is a risk of internal part
corrosion. We advise you to pressurize the pump with nitrogen.
Provide a nitrogen supply with the required characteristics (see 12.2.3).
Seal the inlet port with inlet blanking plate delivered with the pump.
Connect the nitrogen to the gas connection located on the inlet blanking flange.
Pressurize the pump with dry nitrogen to a relative pressure of 200 hPa.
ACP 120G ACG 600G
To lift the product:
Use a lifting device suitable for the product's weight.
Use a lifting sling with 2 arms with the following characteristics:
– length of each arm> 500 mm
– load per arm > 350 kg
Screw the hoisting rings (delivered in the crate
in separate packaging) in the suitable holes.
With a sling, lift the pump using hoisting rings.
Adjust the leveling pads of the frame and lower
the pump on the castors to move it over short
distances.
Use the hoisting sling to lift the product with
the hoisting rings fixed on the arch.
Adjust the leveling pads of the frame and
lower the pump on the castors to move it
over short distances.
NOTICE
Duty to inform
In order to prevent moisture from entering the pump before installation, it has been pres-
surized before shipment with nitrogen and sealed with blanking plates.
Do not remove the blanking plates sealing the inlet and exhaust ports if the product
is not connected to the pumping line.
Do not operate the product unless the inlet and exhaust are connected to a vacuum
and exhaust pumping line.

12
Transport and storage
When the nitrogen flows out of the exhaust, seal it up with the provided accessories.
Disconnect the nitrogen purge connection.
Store the pump in a clean and dry area, at ambient temperature (see 12.2.1), for a
maximum period of 1 year.
Never store a pump which has been used. Return it to a service center according to the
product Service procedure (see 10).

Product description
13
4 Product description
4.1 Product identification
To correctly identify the product when communicating with Pfeiffer Vacuum, always have
the information from the rating plate available.
Fig. 1: Rating plate example
4.1.1 Scope of delivery
●1 vacuum pump
●2 hoisting rings
●1 funnel
●2 water couplings
●1 nitrogen coupling
●1 operating instructions
●Oil can(s)
●2 adaptators M/F NPT
4.1.2 Product presentation
Based on the multi-stages Roots pump technology, theACP 120G, ACG 600G provide
the benefits of clean and dry vacuum for applications in industiral and research
& development.
These pumps are characterised by their robustness, their availability for pumping cycles
on high volume and unrivaled long mainteanance intervals (up to four years in clean ap-
plications).
For each model, a "large volume" option is available. In this configuration, a frequency
converter is installed on the FB and on the Roos blower, to allow the pumping of large
chamber volumes > 1 m3 (max. Volume 10 m3).
213 kg 50/60 Hz
ACP120GSP21131 - 2016
AP8035681 ACP 120G
ACP120GSP21131
98 avenue de Brogny F-74000 ANNECY

14
Product description
4.2 Man/machine interfaces
Fig. 2: Man/machine interfaces
Inlet Exhaust
Nitrogen inlet Power supply
Water inlet/outlet
V

Installation
15
5 Installation
5.1 Set-up
The pump must be operated in the horizontal position in support on its feet, with the
pumping axis vertical and the inlet opening upwards.
Determine where the pump will be placed.
Use the handling devices to position the pump in the desired location, lift the pump
using hoisting rings (see 3.1).
Lock the pump by adjusting the four leveling feet.
Use a spirit level to check that the frame is in horizontal position in both axis.
Unscrew and remove the lifting ring from ACP 120, inlet side.
Remove the lifting system fixed to frame on the model ACG 600G.
5.2 Oil filling
CAUTION
Risk of tear-out or trips
Route and secure cables, hoses and pipework during installation to avoid any possi-
ble risk of tripping.
DANGER
Health risk in case of oil contact
The pumps are delivered empty of oil: the oil is delivered in separate containers.
Wear mask, gloves, protective glasses to fill the pumps with oil.
NOTICE
Only use approved operating fluids
The pumps are factory tested using Pfeiffer Vacuum oil.
The same oil must be used during operation. The oil safety data sheet is available
on the website.
Model A113 Oil quantity (liter)
FB Roots housing Total
Gear side Motor side
ACP 120G 0.35 – – 0.35
ACG 600G 0.35 0.45 0.18 0.98

16
Installation
5.2.1 Oil filling caution
Make sure that the mains voltage cable is disconnected by any source of
energy.
Make sure the pump is positioned horizontally.
Use the funnel equipped with a flexible tube (delivered with the pump).
5.2.2 Procedure
Fill the housings:
– Roots motor side, and Roots gear side,
– Functional block (FB).
For each housing, proceed as follows:
Remove the fill plug.
Position the funnel in the oil fill neck.
Fill the pump with oil according to the recommended quantities. Do not exceed the
indicated quantities. The oil level should be in the middle of the sight glass. For this
to be accurate, wait a few minutes for the oil to settle over all internal surfaces.
Replace the fill plug securely.
Fig. 4: Oil sight glass
Fig. 3: Oil case filling
1 Roots motor side housing fill plug 6 FB drain plug
2 Roots motor side housing drain plug 7 Roots gear side housing fill plug
3 Roots motor side housing sight glass 8 Roots gear side housing sight glass
4 Functional block fill plug 9 Roots gear side housing drain plug
5 Functional block sight glass BF Functional block
BF/FB
8
9
1
2
3
4
5
6
7
Roots
Roots
Max.
Min.

Installation
17
5.3 Connection to the water circuit
In order to limit corrosion and motor cooling circuit clogging, it is recommended to
use water with the required characteristics (see 12.2.2).
If the ”solid particle size“ and ”solid pollution” water characteristic values cannot be
reached, install a filter on the water input.
5.3.1 Procedure
Connect the water pipes to the coupling connections (packaged separately):
Water inlet = female connection,
Water outlet = male connection.
Connect the plugs on WATER IN and WATER OUT (see 4.2).
Check that there are no leaks in the pipes and connections of the water circuit.
Fig. 5: Water circuit connection
NOTICE
The use of uncontrolled city water can lead to water circuit clogging due to lim-
escale deposition.
This may necessitate, in the worst case scenario, a complete cleaning and overhaul of
the cooling circuit.
The presence of micro-organisms like aquatic weeds and micro-biological sub-
stances like bacteria can lead to cooling problems in the pump.
An appropriate water treatment system must be used to prevent the growth of such
microorganisms.
NOTICE
Risk of water supply failure
If loss of cooling water creates a significant risk for the process:
Control the cooling circuit using an external system able to take over in case of fail-
ure.
WARNING
Pressurised circuit
In order to carry out operations on the product safely, the user must:
Fit a manual valve on the water circuit 3 m from the product allowing the cooling cir-
cuit to be locked.
WATER IN
WATER OUT

18
Installation
Schematic diagram of
the water circuit device
* customer’s responsability
Assembly recommenda-
tion
It is advised to equip the supply of cooling circuit with a regulator valve (customer’s
responsability).
5.4 Connection to the nitrogen circuit
A filtered dry nitrogen supply with the characteristics defined is required for opti-
mum performance (see 12.2.3).
5.4.1 Procedure
Fig. 6: Water circuit device
Water ubket/outlet
BF Functional block
FC Frequency converter
FC
FC
*
BF
Roots
DANGER
Risk of explosion
If pyrophoric materials above the LEL (lower explosive limit) are sent to the pump, the
nitrogen supply must make it possible to dilute this concentration.
Ensure there is a sufficient flow of nitrogen to lower the concentration below the LEL.
Provide in addition an interlock to ensure that gas flow towards the pump is stopped
when nitrogen is lost.
NOTICE
Risk of nitrogen supply failure
If loss of purge flow creates a significant risk for the process:
Control the nitrogen supply using an external system able to take over in case of fail-
ure.

Installation
19
Connect the nitrogen pipe to the coupling connection (packaged separately). Provide
a 6.35 OD (1/4 inch) pipe tubing (supplied by the customer).
Connect the plug on marked N2(see 4.2).
Fig. 7: Nitrogen circuit connection
Schematic diagram of
the nitrogen injection
device
A gas purge circuit protects the low and high pressure bearings and dilutes trace
amounts of corrosive gases.
WARNING
Pressurised circuit
To work safely on the product, the operator must:
Install a manual valve on the nitrogen circuit at a distance of 3 m from the product, so
that the nitrogen supply can be locked.
4 mm 6 mm
1/8 NPT 1/8 NPT
NITROGEN
NOTICE
Damage of internal parts
A sudden inrush of nitrogen into the pressurization circuit may result in damage to inter-
nal parts. It is recommended to equip the nitrogen circuit with a nitrogen pressure regu-
lator and a nitrogen manometer (supplied by the customer). Before pressurizing the cir-
cuit, check that the pressure regulator is closed.
*
BF
5
6
Roots
FC
R1

20
Installation
* customer’s responsability
Adjust the nitrogen flow with the pressure regulator in a pressure indicated in the table
below according to the process. To define this pressure, contact the Pfeiffer Vacuum
customer service.
5.5 Electrical connection
The pump has neither command system nor electric protection. The three-phase motor
in compliance with the standards UL/CSA/CE is equipped with thermal safeties with dry
contacts which it is imperative to connect. The electric installation of the pump is of the
owner responsibility who has to:
Supply the system of command, locking and electric protection (circuit breaker, emer-
gency shutdown) according to the given recommendations (see 5.5.1).
Connect the pump with its electric installation according to the current safety stan-
dards.
Connect necessarily at least the thermal safety of 150 °C available in the motor termi-
nal box (see 5.5.1).
Fig. 8: Nitrogen injection device
R1 Pressure regulator * Nitrogen flow adjustment
5Injection manifold fitted with check valves and calibrat-
ed injectors
Nitrogen flow distribution in BF
6Manometer * Measure the pressure
BF Functional block
Pressure (hPa) Flow (slm)
0.7·10320
1.4·10330
2·10340
2.6·10350
3.2·10360
WARNING
Electric shock hazard
Voltage and current can cause electric shock. Only skilled, authorized operator trained
in the relevant health and safety aspects (EMC, electrical hazards, chemical pollution,
etc.) may carry out maintenance work.
Disconnect the power line cable from all power sources before doing any work on the
product and/or removing the covers.
WARNING
Risk of electromagnetic disturbance
The product’s EMC behavior is guaranteed only if the relevant EMC standards are fol-
lowed during installation.
Use shielded cables and connections for the interfaces in interference-prone environ-
ments.
WARNING
Hazards associated with non-compliant electrical installation
Safe operation after installation is the operator’s responsibility.
Connect the product to an installation that is compliant with local safety standards.
Do no carry out any alterations or modifications to the product on your own initiative.
Check that the pump is correctly connected to the emergency stop system for the
equipment (or pumping installation).
For specific questions, contact your service centers.