vacuubrand VAC 24seven User manual

Technology for Vacuum
Systems
Instructions for use
OI no.: 20901461Original instructions EN
#5 mbar
#70 mbar
Pump module
Description of pump module

2 20901461_EN_VAC_24-7_Pump_V1.1_211221
Original instructions
Keep for further use!
This manual is only to be used and distributed in its complete and original form. It is strictly the user's responsibility to
carefully check the validity of this manual with respect to the product.
Thank you for purchasing this product from VACUUBRAND GMBH + CO KGVACUUBRAND GMBH + CO KG . You have chosen a modern and techni‑
cally high quality product.
Imprint
Manufacturer:
VACUUBRAND GMBH + CO KGVACUUBRAND GMBH + CO KG
Alfred‑Zippe‑Str. 4Alfred‑Zippe‑Str. 4
97877 Wertheim97877 Wertheim
GERMANYGERMANY
Phone:
Head o󰀩ce: [phone]‑0
Sales: [phone]‑5550
Service: [phone]‑5660
Fax: [phone]‑5555
Email:[email protected]
Web: www.vacuubrand.com

Content
320901461_EN_VAC_24-7_Pump_V1.1_211221
TABLE OF CONTENTS
1 About this document 5
1.1 User information ........................................... 5
1.1.1 Descriptions of the pump module ....................... 5
1.1.2 Safety............................................. 5
1.1.3 In this manual....................................... 5
1.2 Symbols and icons ......................................... 6
2 Description of pump module 7
2.1 Product description ......................................... 7
2.2 Function description ........................................ 9
3 Operation of the pump module 11
3.1 Switch on/o󰀨 the vacuum pumping unit ........................ 11
3.2 Switch on/o󰀨 vacuum pump ................................. 12
3.3 Gas ballast – control supply ................................. 13
4 Error remedy 15
4.1 Error – Cause – Remedy ................................... 15
4.2 Technical support ......................................... 17
5 Service work 18
5.1 Recommended maintenance intervals ......................... 18
5.2 Pump module – remove vacuum pump ........................ 19
5.3 Information on service work ................................. 25
5.3.1 Aids, tools, and spare parts ........................... 25
5.3.2 Servicing a vacuum pump (diaphragm + valves) ........... 28
5.3.3 Suction/pressure distributor maintenance ................ 43
5.3.4 Reinsert the vacuum pump ........................... 49
5.3.5 Clean air inlet ...................................... 53
5.3.6 Replace fan fabric .................................. 54
5.3.7 Empty the condensate catch pot ....................... 60
6 Appendix 63
6.1 Technical information ...................................... 63
6.1.1 Technic al data ..................................... 63
6.1.2 Wetted materials ................................... 64
6.1.3 Rating plate ....................................... 65
6.2 Index ................................................... 67
6.3 Declaration of incorporation (EU) ............................. 68
6.4 Declaration of incorporation (UK) ............................. 70

Content
4 20901461_EN_VAC_24-7_Pump_V1.1_211221

520901461_EN_VAC_24-7_Pump_V1.1_211221
About this document
11 About this documentAbout this document
This manual is part of a modular manual compiled in a binder.
1.11.1 User informationUser information
1.1.11.1.1 Descriptions of the pump moduleDescriptions of the pump module
In this section of the manual, you will nd descriptions for the pump modulepump module of the
vacuum pumping unit.
Manual module Content
VAC 24seven_Pump Pump module
Pump unit for VAC 24seven
>Read this manual thoroughly and completely before putting the product into
operation.
>Observe the safety information in the system description VAC 24seven_Sys-
tem.
>Observe supplementary safety information and warnings in this description.
1.1.21.1.2 SafetySafety
Intended use
The pump module is part of the VAC 24seven vacuum pumping unit and is de-
signed for the generation of vacuums in systems intended for this purpose.
Any other use is considered improper use.
Only use a pump module if it is in perfect working condition.
1.1.31.1.3 In this manualIn this manual
The illustrations in this manual are only intended to facilitate comprehension.
We reserve the right to make technical and design changes in the course of con-
tinuous product improvement.
Information about the
manual
Intended use

6 20901461_EN_VAC_24-7_Pump_V1.1_211221
About this document
1.21.2 Symbols and iconsSymbols and icons
Symbols and icons are used in this manual to help you understand descriptions
more easily.
Explanation of symbols and icons
Positive example – Do this!Do this!
Result – OKOK
Negative example – Don't doDon't do
this!this!
Refers to content in this man-
ual.
Refers to content of other sup-
plementary documents.
General mandatory sign.
>You will nd further, detailed descriptions of symbols (icons) in the
system description VAC 24seven_System.

720901461_EN_VAC_24-7_Pump_V1.1_211221
Description of pump module
22 Description of pump moduleDescription of pump module
2.12.1 Product descriptionProduct description
Pump module views
2
3
4
5
1
9
8
7
6
1Centering devices for adjustable feet of the control module
2Isolation valve for vacuum pump suction line, rotary handle also serves
to lock the door
3Door handle
4Condensate catch pot, can be unscrewed
5Fan grille with lter insert, behind it temperature-controlled fans
6Inlet IN, KF DN 40
7Rear wall with ventilation slots
8Outlet OUT, KF DN 40
9Grounding cable for connection to further pump module
Example
Pump module front view
Example
Pump module rear view

8 20901461_EN_VAC_24-7_Pump_V1.1_211221
Description of pump module
14
10
11
13
15
12
10 Inlet IN, KF DN 50 (suction line)
11 Rating plate
12 Outlet OUT, KF DN 50 (exhaust gas line)
13 Door hinge
14 Cable duct
15 Machine feet, screwed in (only in the lowest pump module)
Pump module side view
(1 cable channel hidden)

920901461_EN_VAC_24-7_Pump_V1.1_211221
Description of pump module
2.22.2 Function descriptionFunction description
Pump module in general
Depending on the requirements, up to 3 pump modules can be controlled and regu-
lated with one control module.
Pump modules are available in two di󰀨erent versions:
5 mbar ultimate vacuum and 30 m³/h pumping speed or
70 mbar ultimate vacuum and 40 m³/h pumping speed.
Switching on
The vacuum pumping unit and the connected pumping modules are switched on
via the main switch on the control module.
Vacuum pumps
At the heart of each pump module are 2 speed-controlled diaphragm pumps for
vacuum generation. Individual rocker switches on the control module switch the
diaphragm pumps on and o󰀨 individually.
Vacuum pumps can be switched o󰀨, disconnected, and removed individually with-
out a󰀨ecting the vacuum process, e.g., for service or maintenance purposes. Each
individual pump is compact and can be removed and maintained by just one per-
son.
A diaphragm pump generates a dry, oil-free vacuum because of the hermetic sepa-
ration between suction chamber and drive. The design of the pump heads and its
unique stability core provides high chemical resistance.
The diaphragm pumps meet the requirements of ATEX equipment category 3 in the
internal, wetted parts area. Applicable for pumping of Ex-mixtures infrequently or
for a short period.
Vacuum control
In the control module, the controller regulates the speed of the diaphragm pumps
and thus the vacuum as needed. The diaphragm pumps only run as fast as neces-
sary.
When a vacuum pump is removed, the speed of the other pumps is automatically
adjusted by the controller.
Function description
Pump module with
speed-controlled
diaphragm pumps
Controller for vacuum
control

10 20901461_EN_VAC_24-7_Pump_V1.1_211221
Description of pump module
Status display for monitoring
The operating status of the vacuum pumps is displayed using the light column, the
status LEDs, and the rocker switches on the front of the control module.
Connections
The following connections are located on the pump module:
Vacuum connection for the process = suction line.
Exhaust gas line with the option of connecting a condensate collection tank
#20745016 at the outlet.
Connection option for gas ballast at the control module.
Suction/pressure distributor with thread for suction-side condensate collection
tank (glass ask in front of maintenance door).
In the case of a vacuum pumping unit with several pumping modules, these are
connected in parallel using the "connection set", each with a common suction line
and exhaust gas line.
Display elements
Various connections

1120901461_EN_VAC_24-7_Pump_V1.1_211221
Operation of the pump module
33 Operation of the pump moduleOperation of the pump module
The vacuum pumping unit is operated at the control module.
Switch on/o󰀨 the vacuum pumping unit,
Switch vacuum pumps on/o󰀨 individually,
Control gas ballast supply.
Please read the full description of the operation of the control module in
the following manual modules: VAC_24seven_Control and VAC_24seven_
VACUU·SELECT.
3.13.1 Switch on/o󰀨 the vacuum pumping unitSwitch on/o󰀨 the vacuum pumping unit
Switch on the control module
Switch o󰀨 the control module
5Control module + pump module switched o󰀨.
On the main switch, there are recesses for a padlock to prevent it
from being switched on again.
>During electrical work, secure the vacuum pumping unit with a padlock
before switching it back on.
Switch on vacuum
pumping unit via control
module
Switch o󰀨 vacuum
pumping unit via control
module
Main switch with padlock

12 20901461_EN_VAC_24-7_Pump_V1.1_211221
Operation of the pump module
3.23.2 Switch on/o󰀨 vacuum pumpSwitch on/o󰀨 vacuum pump
After switching on the control module, it may rst be necessary to switch on the
vacuum pumps of a pump module.
If maintenance must be performed, the vacuum pump of a pump module can be
switched o󰀨, removed, and serviced separately. After reinstallation, the serviced
vacuum pump can be switched on again via the rocker switch.
Switch on vacuum pump
5Rocker switch lights up.
5Vacuum pump switched on.
Switch o󰀨 vacuum pump
5Rocker switch does not light up.
5Vacuum pump switched o󰀨.
Each time a vacuum pump is switched on at the control module,
the fans of the corresponding pump module are fully activated for
approx. 10 seconds. This allows the function of the fans in the pump
module housing to be checked.
Switch on individual
vacuum pump
Switch o󰀨 individual
vacuum pump

1320901461_EN_VAC_24-7_Pump_V1.1_211221
Operation of the pump module
3.33.3 Gas ballast – control supplyGas ballast – control supply
The supply of gas ballast, e.g., air or inert gas, is intended to prevent the formation
of condensate in the vacuum pump or to ush possible pump residues out of the
vacuum pump.
The "gas ballast valve" is located on the control module for the innitely variable
control of the gas supply.
Open the gas ballast valve
5Air/gas supply open.
Close the gas ballast valve
5Air/gas supply closed.
Open gas ballast valve
Close gas ballast valve

14 20901461_EN_VAC_24-7_Pump_V1.1_211221
Operation of the pump module

1520901461_EN_VAC_24-7_Pump_V1.1_211221
Error remedy
44 Error remedyError remedy
4.14.1 Error – Cause – RemedyError – Cause – Remedy
ErrorError `Possible cause 3Remedy Personnel
Sensitive
process not
controllable
`Speed too high
`Pumping speed too
high
3 Reduce speed Operator,
specialist
Vacuum pump
does not run
`Vacuum pump
switched o󰀨
3 Switch on vacuum pump at
rocker switch.
Operator
`Plug-in connector to
vacuum pump dis-
connected.
3 Check plug-in connector
and reconnect if necessary.
Operator
`Overpressure in the
outlet (exhaust) line.
3 Open up exhaust gas line. Operator
`Vacuum pump
motor overloaded.
`Thermal fault of
vacuum pump.
3 Allow motor to cool down,
determine and eliminate
cause of overload.
Only manual reset possible:
 Switch o󰀨 pump or pull
out power plug.
Specialist
No suc-
tion power
`Leak in the suction
line or in the appa-
ratus.
`Condensate catch
pot not screwed in
correctly.
`Condensate catch
pot not installed.
`Centering ring in the
small ange does
not t properly.
3 Check suction line and
apparatus for possible
leaks.
3 Check condensate catch
pot and screw in correctly.
3 Check centering rings for
correct positioning.
3 Check apparatus for leaks.
Operator
`Vacuum line too
long.
3 Use vacuum lines with a
larger cross-section.
Resp. special-
ist
`Condensate inside
the vacuum pump
3 Allow vacuum pump to run
for a few minutes with the
suction nozzle open.
Operator
`Deposits inside the
vacuum pump
3 Clean and check pump
heads.
Specialist
`Diaphragms or
valves defective.
3 Replace diaphragms and
valves.
Specialist
`High level of vapor
generated in the
process.
3 Check process parameter. Specialist
Loud operat-
ing noises
`No hose installed. 3 Check hose and install it
right.
Operator
`Diaphragm clamp-
ing disc loose.
3 Service the vacuum pump
and replace defective parts.
Specialist
`Outlet pipe open. 3 Check exhaust gas line
connections.
3 Connect the outlet pipe to
an exhaustion system, e. g.,
fume hood.
Specialist
Error-Cause-Remedy

16 20901461_EN_VAC_24-7_Pump_V1.1_211221
Error remedy
ErrorError `Possible cause 3Remedy Personnel
Pump module
gets too hot
`Fan fabric clogged.
`Fan front covered.
`Fan failure.
`Media temperature
too high; > 40 °C.
`Ambient temper-
ature too high;
> 45 °C.
3 Test the fan function: Briey
switch the vacuum pumps
of pump module OFF and
ON again Fans are fully
activated for 10 seconds.
3 Clean fan fabric.
3 Remove covers in front of
the fan.
3 Operate at lower pressure
to reduce media tempera-
ture.
3 Replace defective parts.
3 If the ambient temperature
is high, use room cooling or
a similar device.
Error-Cause-Remedy

1720901461_EN_VAC_24-7_Pump_V1.1_211221
Error remedy
4.24.2 Technical supportTechnical support
For technical assistance or in the event of an error, please contact our Service
Department.
>To identify errors and potential remedies, please refer to the troubleshooting
table Error – Cause – RemedyError – Cause – Remedy.
Operate the machine only when it is in proper working condition.
>Observe the recommended maintenance intervals to ensure a fully
functional system.
Technical support

18 20901461_EN_VAC_24-7_Pump_V1.1_211221
Service work
55 Service workService work
NOTENOTE
Damage possible if work is performed incorrectly.
> Have maintenance work performed by a trained professional or at least by a
trained person.
> Recommendation: Please read before the rst maintenance the complete
instructions once to get an overview of the required service work.
5.15.1 Recommended maintenance intervalsRecommended maintenance intervals
C
B
A
Maintenance intervals*Maintenance intervals* monthlymonthly 15,000 h15,000 h 40,000 h40,000 h IfIf
requiredrequired
A Left vacuum pump
C Right vacuum pump
Replace the diaphragms x
Replace the valves x
Replace O-rings x
Clean or replace molded
PTFE hose x
B Air inlet
Check fan fabric x
Clean or replace fan fabric x
Fan visual/
function check x
Replace fan x
* Recommended maintenance interval after operating hours and under nor-
mal operating conditions; depending on the environment and area of applica-
tion, we advise performing cleaning or replacing spare parts as needed.
Recommended mainte-
nance intervals
Example
Front pump module
with open maintenance
doors

1920901461_EN_VAC_24-7_Pump_V1.1_211221
Service work
5.25.2 Pump module – remove vacuum pumpPump module – remove vacuum pump
The removal of a vacuum pump is provided for in the following cases:
Service work such as cleaning and maintenance
Repairing a vacuum pump
Replacing a vacuum pump
Remove vacuum pump
DANGERDANGER
Release of hazardous substances through open exhaust
pipe.
Risk of poisoning from the emission of gases or vapors that can be
harmful or fatal.
> When handling chemicals, wear your personal protective equipment.
> If hazardous substances are pumped, switch o󰀨 all vacuum pumps
for service work.
> Close immediately after uncoupling the outlet pipe of the diaphragm
pump with a blanking plug.
12
DANGER!
Danger due to pumped hazardous substances.
>Switch o󰀨 allall vacuum pumps during maintenance, in case that hazardous
substances are pumped.
1.1. Switch o󰀨 the rocker switch of the
vacuum pump you want to take
out.
5Rocker switch light OFF.
5After approx. 20 sec., sta-
tus LED turns YELLOWYELLOW.
2.2. Unscrew the catch pot and empty
the ask if necessary. Put aside the
empty condensate catch pot.
Switch o󰀨 vacuum pump
at control module

20 20901461_EN_VAC_24-7_Pump_V1.1_211221
Service work
Note the following during maintenance work:
If the pumping unit is operated at the ultimate vacuum with closed gas ballast valve,
a slight increase in pressure is possible while, for example, the ask is emptied or
a vacuum pump is removed for service work.
>Coordinate the maintenance work with the specialist department responsible
for the application.
3 4
3.3. Turn the black handle of the isola-
tion valve 90° in either direction.
5Handle in vertical position.
5In-line solenoid valve closed.
4.4. Open the maintenance door.
56
5.5. Open the maintenance door wide
enough for easy access to the vac-
uum pump.
6.6. Open the ring from the suction line
at the top.
IMPORTANT!
Remove vacuum pump
Unscrew catch pot,
open maintenance door