Grunbeck GENO-flushing compressor 1988 K Operation Manual

GENO®-flushing compressor 1988 K

operation manual

Date April 2013
Order no. 015 151 963-inter

Grünbeck Wasseraufbereitung GmbH

Josef-Grünbeck-Strasse 1
89420 Hoechstaedt/Danube · GERMANY
Phone [phone] · Fax [phone]
www.gruenbeck.com · [e-mail]

A company certified by TÜV SÜD

in accordance with DIN EN ISO 9001, DIN
EN ISO 14001, DIN EN ISO 13485 and SCC

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

2

Table of contents

A General .......................................................................... 5

1 Preface
2 Warranty
3 How to use this operation manual
4 General safety information
5 Shipping and storage
6 Disposal of used parts and materials

B Basic information .......................................................... 11

1 Laws, regulations, standards

2 Flushing, disinfection and sanitation of installations

C Product description ....................................................... 14

1 Type designation plate

2 Flushing compressor components
3 Function
4 Designated application
5 Application limits

6 Technical specifications

7 Scope of supply

D Installation for flushing and disinfection of drinking

water installations ........................................................

28

1 General installation instructions

2 Installation of the flushing compressor in pipelines
3 Installation of accessories for draining the flushing
water
4 Preparation of the drinking water installation for rinsing
5 Preparation of the drinking water installation for
disinfection as per DVGW (German Association for Gas
and Water) work sheet 557

E Flushing and disinfection of drinking water

installations ...................................................................

45

1 General notes

2 Flushing of pipes with a mixture of water and air

3 Performing system installation as per
DIN EN 806-4 and DVGW work sheet 557

F Rinsing of silted up floor heating systems .................. 49

1 General

2 Preparation for rinsing
3 Rinsing of floor heating systems with water and a
mixture of water and air

G Troubleshooting ............................................................ 52

1 Introduction

2 Error messages

H Maintenance and care .................................................. 54

1 Basic information

2 Care work

3 Inspection

4 Maintenance
5 Operation lo

g

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

3

Publisher's information

All rights reserved.



Copyright by Grünbeck Wasseraufbereitung GmbH

Printed in Germany
Effective with the date of edition indicated on the cover sheet.

-We reserve the right to modifications, especially with regard to
technical progress-

Reprints, translations into foreign languages, electronic storage or
copying only with explicit written approval of Grünbeck
Wasseraufbereitung GmbH.

Any type of duplication not authorised by Grünbeck
Wasseraufbereitung is a copyright violation and subject to legal action.

Responsible for contents:
Grünbeck Wasseraufbereitung GmbH

Josef-Grünbeck-Strasse 1  89420 Hoechstaedt/Germany
Phone [phone]  Fax [phone]
www.gruenbeck.de  [e-mail]

Print: Grünbeck Wasseraufbereitung GmbH
Josef-Grünbeck-Strasse 1, 89420 Hoechstaedt/Germany

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

4

EC Declaration of Conformity

This is to certify that the system designated below meets the safety and health requirements of the
applicable European guidelines in terms of its design, construction and execution.

If the system is modified in a way not approved by us, this certificate is void.
Manufacturer: Grünbeck Wasseraufbereitung GmbH

Josef-Grünbeck-Strasse 1

89420 Höchstädt/Do., Germany
Responsible for documentation: Markus Pöpperl
System designation: GENO®-flushing compressor
System type: 1988 K
System number: Refer to type designation plate
Applicable EC guidelines: Machinery Directive (2006/42/EC)

EMC Directive (2004/108/EC)

EC Low-Voltage Directive (2006/95 EC)
Applied harmonised standards

in particular:

DIN EN ISO 12100 - 1, DIN EN ISO 12100 - 2

DIN EN 61000-6-2, DIN EN 61000-6-3,

first regulation concerning the Product and Devices Safety Act

(regulation concerning the marketing of electrical equipment

for use within specific voltage ranges

- 1. GPSGV).

Applied national standards and
technical specifications,
in particular:

DIN 31000/VDE 1000 (03.79)

Date / Manufacturer signature: 17.04.13 p.p.

Markus Pöpperl

Dipl. Ing. (FH)
Function of signatory: Head of Design Department for Serial Products

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

5

A General

1 | Preface

Thank you for opting for a Grünbeck product. Backed by decades of
experience in the area of water treatment, we provide solutions for all
kind of processes.

Drinking water is classified as food and requires particular care. ­Therefore, always ensure the required hygiene in operating and
maintaining systems involved in the drinking water supply. This also
applies to the treatment of water for industrial use if repercussions for
the drinking water cannot completely be excluded.

All Grünbeck systems and devices are made of high-quality materials. ­This ensures reliable operation over many years, provided you treat your
water treatment systems with the required care. This operation manual
assists you with important information. Therefore, please read the
complete manual before installing, operating or maintaining your
system.

Customer satisfaction is our prime objective and providing customers
with qualified advice is crucial to Grünbeck. If you have any questions
concerning this system, possible extensions or general water and waste
water treatment, our field staff, as well as the experts at our
headquarters in Hoechstaedt, are available to help you.

Please consult the

representatives

responsible for your region for help and advice (see
www.gruenbeck.de). In case of emergency, please get in touch with our
service hotline at [phone]. We can connect you with the
appropriate expert more quickly if you provide the required system data.
In order to have access to this data at all times, please insert the
information from the type designation plate into the overview in chapter
C, section 1

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

6

2 | Warranty

All Grünbeck Wasseraufbereitung GmbH devices and systems are
produced using state-of-the-art production methods and are subjected
to comprehensive quality controls. All warranty claims are subject to our
General Terms and Conditions.

Terms and Conditions of Sale and Delivery (excerpt)

. . . . . . . .

11. Warranty
a) If goods and services are supplied which are obviously

defective, the Customer must report such defects
within 8 (eight) days after receipt of such goods and
services in order to maintain the liability claims.

b) If the defect is of such a nature that only a spare part

needs to be replaced, Grünbeck shall have the right to
request the Purchaser to replace the new part
delivered by us if the costs for sending a technician to
the Purchaser's site are unreasonably high.

c) The warranty periods are:

- two years: for devices for private use (natural

persons)

- one year: for devices for industrial or commercial use

(companies)

- two years: for all DVGW-certified devices, also for

industrial or commercial use within the framework

of the liability agreement with the ZVSHK
after delivery/acceptance. This excludes electrical parts
and parts which are subject to wear and tear. The
warranty period shall only apply if the operation
manual is observed meticulously, if the device is
mounted, commissioned, operated and maintained
properly, and/or if a maintenance contract is
concluded within the first six months. If these
requirements are not met, the warranty shall be void.
The warranty shall be void if the purchaser uses
dosing agents or chemicals supplied by other
manufacturers and if the quality and composition of
such dosing agents or chemicals is beyond

Grünbeck's control. Grünbeck shall not be liable for
defects or damage resulting from inept handling or
operation.

d) Grünbeck shall only be liable if the Customer performs

the maintenance work as stated in the operation
manual or has the maintenance work performed in
such a way and if the Customer uses spare parts
supplied or recommended by Grünbeck.

e) Grünbeck shall not be liable for damage resulting from

frost, water or electrical over-voltage or from parts
which are subject to wear and tear. This applies in
particular to electrical parts.

f) The claims of the Purchaser are limited to repair or

replacement, as the case may be, at the discretion of
Grünbeck. Grünbeck shall have the right to several
attempts to repair. If Grünbeck fails to repair or replace
the defective delivery within a reasonable time, the
Customer shall have the right to either cancel the
contract or demand an appropriate reduction of the
purchase price.

g) In case of complaints with regard to systems that are

not installed in Germany, the warranty claim will be
settled by the local technical service authorised by
Grünbeck. If no technical service is designated in the
specific country, the assignment of Grünbeck’s
technical service shall end at the German border. All
additional cost, apart from the material required, shall
be borne by the customer.

. . . . . . . .

3 | How to use this operation manual

This operation manual is intended for the operators of our systems. It is
divided into several chapters (a letter is assigned to each of them) which
are listed in the “Table of contents” on page 2 in alphabetical order.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

7

4 | General safety information

4.1 Symbols and notes

Important information in this operation manual is characterised by
symbols. Please pay particular attention to this information to ensure the
hazard-free, safe and efficient handling of the system.

Danger! Failure to adhere to this information will cause serious or life­threatening injuries, extreme damage to property or inadmissible
contamination of the drinking water.

Warning! Failure to adhere to this information may cause injuries,
damage to property or contamination of the drinking water.

Attention! Failure to adhere to this information may result in damage
to the system or other objects.



Note: This symbol characterises information and tips to make your work
easier.

Tasks with this symbol may only be performed by the technical customer
service/authorised service company or by persons who have been
expressly authorised by Grünbeck.

Tasks with this symbol may only be performed by qualified electrical
experts according to the VDE guidelines or according to the guidelines
of a similar local institution.

Tasks with this symbol may only be performed by water companies or
approved installation companies. In Germany, the installation company
must be registered in an installation directory of a water company as per

§12(2) AVBWasserV (German Ordinance on General Conditions for the
Supply of Water).

4.2 Operating
personnel

Only persons who have read and understood this operation manual are
permitted to work with the system. The safety guidelines are to be
strictly adhered to.

4.3 Designated
application

The system may only be used for the purpose outlined in the product
description (chapter C). The guidelines in this operation manual as well
as the applicable local guidelines concerning the drinking water
protection, accident prevention and occupational safety must be
adhered to. In addition, appropriate application also implies that the
system may only be operated when it is in proper working order. Any
malfunctions must be repaired at once.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

8

4.4 Protection from water damage

Warning! In order to properly protect the installation site from water

damage:

1. a sufficiently dimensioned floor drain system must be available or

2. work must be continually supervised.

4.5 Indication of
specific dangers

Danger due to electrical energy!
Do not touch electrical parts with wet hands.
Disconnect the system from mains before starting work on electrical
parts of the system. Have qualified experts replace damaged cables
immediately.

Danger due to mechanical energy!
System parts may be subject to overpressure. Danger of injury and
damage to property due to escaping water and unexpected movement
of system parts. Check pressure pipes regularly. Depressurise the system
before starting repair or maintenance work on the system.

Hazardous to health due to contaminated drinking water!
Have the system installed and operated by a specialist company. The
operation manual must be strictly adhered to! Inspections and
maintenance must be performed at the intervals specified!

Particular dangers on the compressor aggregate!

Warning!

1. Do not operate the flushing compressor below 5°C. If the flushing

compressor is undercooled – without connection voltage – wait until
the temperature has adjusted.

2. The compressor aggregate and lines become very hot when

operated and remain hot for some time after being switched off.
Contact with hot parts results in burns. It must be ensured that no
flammable materials are allowed to come into contact with these
parts.

3. The flushing compressor may only be operated in a well-ventilated

and dust-free room. The air sucked in by the compressor aggregate
must not contain flammable vapours or mist, e.g., paint solvents,
which could lead to a fire or explosion.

4. The cooling air flow on the compressor aggregate must not be

blocked. The system must thus be set up a distance of at least 50 cm
from any obstacles.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

9

5. Use the accessories suitable for the specific application and

operating pressure and observe the relevant safety information.

6. Regularly check that the safety devices, electrical lines, safety valve

and tubes are in perfect condition.

7. In the case of any damage to electrical or pressurised components,

disconnect these from the mains or depressurise them and have
them checked/repaired by a specialist.

8. Hold or secure free tube ends as these could cause injuries by

whipping around. When releasing the tube coupling, the coupling
piece is to be held securely in order to avoid injuries caused by the
tube whipping back quickly.

9. Do not "play" with compressed air or aim it at others! Do not use

compressed air to clean clothes.

10. Ear protection must be used when working with the flushing

compressor.

11. Depressurise the pressure vessel via the drain valve prior to

transporting the flushing compressor.

12. Do not make any changes to the safety valve and pressure vessel.

13. The compressor aggregate features a motor circuit breaker which

automatically interrupts the current supply in the event of an
overload. In this case, pull the plug out of the mains and wait a few
minutes before resetting the motor circuit breaker and then put the
plug back in. If the motor circuit breaker should be triggered again,
disconnect the power supply and contact the Grünbeck technical
customer service/authorised service company.

Danger! Disinfectants are hazardous substances. When using optional
disinfectants, the relevant safety information and safety data sheets are
to be observed and the prescribed protective equipment is to be used.



Note: By concluding a maintenance contract, you ensure that all of the
required tasks are performed on time. You may perform the interim
inspections yourself.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

10

5 | Shipping and storage

Attention! The system may be damaged by frost or high temperatures.

In order to avoid damage of this kind:
Protect from frost during transportation and storage!

Do not install or store the system next to objects which radiate a lot of
heat.

6 | Disposal of used parts and materials

Used parts and materials are to be disposed of or made available for
recycling purposes according to the applicable local guidelines.

If a material is subject to specific regulations, adhere to the instructions
indicated on the packing.

If in doubt, contact your local waste disposal authority or the
manufacturer for more information.

Since the compressor does not contain lubricants, the condensation can
be disposed of as waste water.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

11

B Basic information

1 | Laws, regulations, standards

In the interest of good health, rules cannot be ignored when it comes to

the processing of drinking water (raw water). This operation manual
takes into consideration the current regulations and stipulates
information that you will need for the safe operation of your water
treatment system.

Among other things, the regulations stipulate that
only approved companies are permitted to make major modifications to

water supply facilities
and that tests, inspections and maintenance on installed devices are to

be performed at regular intervals.
In order to ensure drinking water quality, the issue of hygiene in

installations is becoming increasingly important. On the one hand, when
commissioning the installation there is the issue of cleaning by means of
flushing and then, depending on water hardness, the implementation of
measures to prevent lime scale. On the other hand, there are sanitation
measures such as sanitation flushing, disinfection, the removal of lime
scale and rust as well as the creation of a protective layer by means of
mineral dosing. These measures result from the latest requirements of
the German drinking water ordinance and standards, in particular DIN
EN 806-4.

The DVGW work sheet W 557 describes the "cleaning and
disinfection of drinking water installations"

It serves as the basis for avoiding and eliminating microbial
contamination and undesired deposits in drinking water installations as
defined by the drinking water ordinance. It describes the cleaning of
drinking water installations and the system disinfection of drinking
water installations or parts thereof and designates which disinfection
methods are to be applied and when as well as preventative measures
for avoiding microbial contamination.
The continuous disinfection of drinking water (drinking water
disinfection) is, in contrast, described in DVGW work sheet W 556
(under preparation).

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

12

2 | Differentiation between "system disinfection" and
"disinfection of the drinking water"

"System disinfection" is a complete measure for disinfection of a
drinking water installation and, during this time, drinking water is not
available to consumers. "System disinfection" is only a long term
solution if the causes of contamination are remedied.

"Disinfection of the drinking water" is transient long-term disinfection
before and/or during the technical sanitation of the drinking water
installation. The addition of disinfection by the water supplier must be
taken into account.

3 | Basis as per W 557, section 4

Drinking water must not impair the health of consumers. In addition to

the long-term protection of drinking water resources and preparation
and distribution in accordance with the generally recognised codes of
practice this also requires a properly planned, set up and operated
drinking water installation.

In particular, the drinking water installation can become contaminated
when newly constructed and during repairs. Contamination with
pathogens is a key danger. As long as the contamination remains
suspended or dissolved in the water, it is possible to flush it out of the
drinking water installation without any great difficulties. The first step in
remedying pollution is always cleaning. This is also true with microbial
contamination. Micro-organisms embedded in particles or corrosion
products are virtually impossible to kill off with disinfectants as these are
unable to access the micro-organisms. For this reason, the particles or
corrosion products must be removed by flushing or other cleaning
measures. System disinfection may be necessary as an additional safety
measure.

In existing drinking water installations with zinc-coated steel pipelines in
the hot water area, the water can become discoloured after even a brief
stagnation time due to corrosion. Flushing and other cleaning measures
are either not or only briefly effective in such cases. The dosing of
inhibitors can result in an improvement.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

13

Regardless of whether there is immediate discolouration of the water or

not, corrosion causes deposits to build up. These can be due to
precipitation in the hot water area or from the flushing in of solid
particles from the supply network (e.g., rust particles). If there are
deposits, there is a risk that these will be mobilised when a large
amount of water is withdrawn and, consequently, the water is
discoloured or becomes clouded. Moreover, deposits facilitate the
multiplication of micro-organisms which can, in turn, result in microbial
pollution. In order to prevent this, the installation must be cleaned if it
contains deposits.

In drinking water installation which are planned, built, commissioned,
operated and maintained in accordance with the generally recognised
codes of practice, the microbiological sound quality of the drinking
water is ensured at the withdrawal point. In particular the following
must be ensured:

 Operation as intended (including regular withdrawal of water at all

withdrawal points)

 Temperature of the cold drinking water not in excess of 25°C
 Temperature of the hot drinking water in the entire circulation system

not below 55°C

 Regular maintenance

If the microbiological parameters of the limit values of the drinking
water ordinance are exceeded or if the technical action value of the
drinking water ordinance is reached or exceeded or the requirements of
the UBA (Federal Environmental Agency) recommendations are not
complied with, microbial contamination must be eliminated in the
interests of health protection. In such cases, system disinfection may be
additionally necessary after cleaning.



Note: Cleaning measures and system disinfection are only effective in
the long term if the causes of pollution, in particular in connection with
microbial contamination, have been remedied.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

14

C Product description

1 | Type designation plate

Queries and orders can be processed more quickly if you quote the data

on the type designation plate (fig. C-1) of your flushing compressor.
Please amend the serial number in the overview below in order to
always have the data required at hand.

GENO®-flushing compressor 1988 K
Serial number:      
Order no.: 151 200

Fig. C-1: GENO®-flushing compressor 1988 K type designation plate

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

15

2 | Flushing compressor components

1

Tubular frame

8

Air suction filter

15

Pressure regulator condensate drain
valve

2

Compressor aggregate

9

Control unit

16

Pressure display for
compressed air vessel

3

Compressed air vessel

10

Solenoid valve

17

Compressed air vessel condensate drain
valve

4

Type designation plate

11

Non-return valve

18

Safety valve

5

Dosing connection for
optional dosing system

12

Pressure display
for air pulses

19

Pressure switch

6

Control connection for
optional dosing system

13

Flushing air pressure
regulator
with filter

20

Motor circuit breaker

7

Mains cable

14

Compressed air
connection
quick coupling

Fig. C-2: GENO®-flushing compressor1988 K components

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

16

3 | Function

m3/h

8.8

1

Pulse display

4

Disinfection

2

Flow display

5

Water/air mix

3

Continuous air blast ON/OFF

6

Compressed air

Fig. C-3: Control of the GENO®-flushing compressor1988 K

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

17

Compressed air

To use as a compressed air supply, the flushing compressor must be
fitted with a standard compressed air connection with quick coupling.
With this function, no air or dosing agent is added to the water.

Water/air mix

For the flushing of pipes with a water/air mix.
The flushing compressor is flushed through with water from an on-site

source. Volume-controlled addition of compressed air in periodic pulses
in order to increase the flushing efficiency. The flushing air pressure
automatically adjusts to a value which exceeds the existing water
pressure. The water flow is indicated in the LED display in m³/h.

If the disinfectant GENO

®

-Baktox (chlorine dioxide) is to be used, the
separate, independent dosing system MOBIdos (without flushing
compressor) is used.

Continuous air blast

In order to increase the efficiency of cleaning, this function can be
connected to the water/air mix, e.g., with sanitation flushing.

Disinfection

For system disinfection (disinfection of a drinking water installation) with
GENO®-Chlor A or GENO®-perox using the optional dosing system
GENODOS® DM-SK (see note below).

The GENO®-flushing compressor 1988 K is flushed through with water
from an on-site source. Volume-controlled supply of disinfectant to the
dosing connection on the flushing compressor. The dosing pump is
controlled by the controller of the flushing compressor and the dosing
pulses are indicated on the LED display (for dosing systems and
disinfectants, please refer to Accessories).



Note: For system disinfection we recommend the independent and
mobile dosing system MOBIdos (order no. 160 150) which comes
complete with a system divider and is suitable for all three disinfectants
listed in the DVGW work sheet W 577; GENO®-perox (hydrogen
peroxide) GENO+-Baktox (chlorine dioxide) and GENO®-Chlor A (sodium
hypochlorite or chlorine).

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

18

4 | Designated application

The GENO®-flushing compressor 1988 K is suitable for the following

applications:

Flushing of pipes

with a water/air mix

 prior to the commissioning of drinking water installations

as per DIN EN 806-4 and DVGW work sheet W 557.

 prior to disinfection of drinking water installations

as per DIN EN 806-4 and DVGW work sheet W 557.

 in the case of corroded and silted up pipes lines prior to mineral

dosing.

 of silted up floor heating systems.

system disinfection

Disinfection of drinking water installations as per DIN EN 806-4 and
DVGW work sheet W 557 with GENO®-Chlor A or GENO®-perox, using
the optional dosing system GENODOS® DM-SK.

The GENO®-flushing compressor 1988 K may only be operated once all
components have been properly installed. Safety devices must NEVER be
removed, bridged or otherwise tampered with.

Designated application also involves following the information given in
this operation manual and the safety regulations which apply at the site
of operation as well as compliance with the maintenance and inspection
intervals.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

19

5 | Application limits

Flushing of drinking water installations prior to commissioning with a
mixture of water and air as per DIN EN 806-4 and DVGW work sheet
W 557 with a recommended minimum flow speed of 0.5 m/s.

 up to DN 50 use of a flushing compressor
 with DN 65 and 80 parallel connection* of two flushing compressors,

with DN 80 parallel connection* of up to three flushing compressors
is possible.

Sanitation of corroded or silted up pipe lines with a mixture of water
and air with a recommended minimum flow speed of 1.5 m/s.

 up to DN 32 use of a flushing compressor
 with DN 40 and 50 parallel connection of two flushing compressors.

*parallel connection is possible with accessories.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

20

6 | Technical specifications

All flushing compressor data is summarised in Table C-1. The data refers
to the standard versions of the flushing compressors. Possible deviations
in case of special versions are listed separately, if applicable.

Table C-1: Technical specifications GENO®-flushing compressor 1988 K

Connection data

Power supply [V]/[Hz]

230/50

Protection/protection class

IP 20/I

Flushing connections

1" male thread

Max. water flow [m³/h]

5

Working water temperature* (recommended) [bar]

1-5 (4-5)

Connection for compressed air

quick-acting coupling connector

Nominal pressure

PN 10

Performance data

Compressor aggregate

[bar]

8 (oil-free)

Max. power input

[kW]

1.5

Operating mode

S1 (suitable for continuous operation)

Air suction capacity [l/min]

200

Volume of pressure tank [litres]

10

Dimensions and weights

1)

A Width of flushing compressor [mm]

390

B Height of flushing compressor [mm]

625

C Depth of flushing compressor [mm]

330

Operating weight without accessories [kg]

21.8

Shipping weight, completely packed [kg]

25.2

General

Water temperature [°C]

5 - 30

Ambient temperature [°C]

5 - 35

Order no. 151 200

* On-site water inlet

Fig. C-4: Dimensioned drawing of the GENO®-flushing compressor 1988 K

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

21

7 | Scope of supply

7.1 Basic configuration

GENO®-flushing compressor 1988 K, complete, packed in a box with
operation manual and 2 flexible connection tubes DN 25 (1" excess),
each 1.5 m in length with spare O-rings.

7.2 Accessories



Note: The GENO®-flushing compressor 1988 K can be retrofitted with
accessories. Please contact your local Grünbeck representative or
Grünbeck’s headquarters in Hoechstaedt for details.

Adjusting pieces

for installation downstream of the entrance filter, e.g., for integration of
the flushing compressor, dosing system, softening or as an intermediate
piece for rinsing longer pipelines (screen connections and seals are
included in the scope of supply).

Adjusting piece 1"
(installation length without screw connection 190 mm)

128 001

Adjusting piece 1 1/4"
(installation length without screw connection 190 mm)

128 401

Adjusting piece 1 1/2"
(installation length without screw connection 330 mm)

128 402

Adjusting piece 2"
(installation length without screw connection 330 mm)

128 403

Tube extension set for the flushing compressor

and MOBIdos dosing system

Consisting of:

 2 flexible connection tubes, each 1.5 m long
 2 coupling pieces
 4 spare O-rings

Packed in a box 151 820

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

22

Connection fitting cases ¾", 1", 1¼", 1½", 2"

For integration of the flushing compressor in the pipelines, e.g., in place
of an existing filter, adjusting piece, softening system, dosing system
Consisting of:

 Connection fittings to be fitted, for example, in place of an adjusting

piece,
for ¾" 1", 1¼", 1½", 2" (variable installation length, as of approx.
175 mm),
2 adapters with seals for each nominal width.

 Connection fittings for installation at the location of a filter with an

installation length of 100 mm, one flushing adapter ¾“, 1“, 1 ¼“
each (fixed installation length, 100 mm).

 Boxer K fine filter with connection set

for assembly of the fine filter on the flushing compressor inlet.

 Connection set for system divider

for assembly of an optional system divider DN25/32 on the flushing
compressor inlet.

 2 connection brackets with spare O-rings.
 Mounting instructions.

Complete in 130 mm Sortimo case, suitable for

Sortimo vehicle equipment.

151 070

Connection fitting cases 1½", 2", DN 65, DN 80

for parallel connection of two or, with DN 80, up to three flushing
compressors in piping, e.g., in place of an existing filter, adjusting piece,
softener, dosing system. Consisting of:

 Connection fittings for 1 ½", 2", DN 65, DN 80

(variable installation length, as of approx. 190 mm)
2 adapters or reducing flange with seals for each nominal width.

 2 blind caps.
 6 connection brackets with spare O-rings.
 Mounting instructions.

Complete in 130 mm Sortimo case, suitable for

Sortimo vehicle equipment.

151 080

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

23

GENODOS®DM-SK dosing system

As an accessory for the flushing compressor, for disinfection of piping
with GENO®-Chlor A or GENO®-perox comprising:

 Dosing pump GP 10/40, self-deaerating, for degassing media,

controlled via contact water meter of flushing compressor, power
supply 230 V, 50 - 60 Hz.

 Dosing line with dosing valve for connection at the flushing

compressor.

 Suction lance with empty signal and pre-alarm, suitable for 10 kg or

20 kg transport canisters.

 Chlorine water inspection device, 10 - 160 mg/.

Complete and packed in cardboard box. 160 442



Note: For system disinfection we recommend the independent and
mobile dosing system MOBIdos (order no. 160 150) which comes
complete with a system divider and is suitable for all three disinfectants
listed in the DVGW work sheet W 577; GENO®-perox (hydrogen
peroxide) GENO®-Baktox (chlorine dioxide) and GENO®-Chlor A (sodium
hypochlorite or chlorine).

Euro system divider GENO®-DK 2, 1“

132 530

Dosing solutions

GENO®-Chlor A (25 kg)

210 012

GENO®-perox (1 litre)

170 320

GENO®-perox (10 kg)

170 325

Water inspection devices

Water inspection system

Chlorine 10 - 160 mg/l (20 analyses)

170 138

Water inspection system

Chlorine 0.1 - 2.0 mg/l and pH value 6.9 - 8.2
(150 analyses)

170 128

Water inspection system

Peroxide 100 - 1,000 mg/l (100 analyses)

170 167

Water inspection system

Peroxide 0.5 - 25 mg/l (100 analyses)

170 136

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

24

Closing plug case, 60 x ½" closing plugs

Closing plugs to be fitted at withdrawal points, also suitable for leakage
tests and to deaerate the drinking water installation. The closing plug
can be equipped with an optional flushing fitting (see case with flushing
fittings) to perform the flushing.

The closing plugs are made up of two parts, a base body and screw cap,
both of which are made of brass with a dirt-repellent plastic coating.
The small diameter of just 35 mm without ribbing allows tiles to be laid
without the need for disassembly and requires only small holes to be
made in the tiles.
Consisting of:

 60 closing plugs
 20 spare O-rings
 1 desiccant bag
 Mounting instructions.

Complete in 130 mm Sortimo case, suitable for
Sortimo vehicle equipment.

151 160

Closing plug set, 20 x ½" closing plugs in a box

incl. 20 spare O-rings 151 170

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

25

Case with flushing fittings, 20 flushing fittings with accessories

In order to use these flushing fittings, the above mentioned closing
plugs are needed. See case with closing plugs or set of closing plugs.

The flushing fitting is connected to the closing plug for flushing and
serves to drain off the flushing water when flushing through piping. It
can also be used to draw off construction water, to fill baths and
showers and bridge piping (for this use a pressure-resistant tube.
The flushing fittings are made up of 2 parts, a shut-off ball fitting and
screw-off tube connection, both of which are made of chrome-plated
brass. Thanks to the ball-type shut-off valve, a large and free cross
section for the flushing is available. The screw-off tube connection
allows the tube to stay fitted to the nozzle.

As the closing plug and the flushing fitting are two separate entities,
only the closing plug remains behind at the construction site for the
time between installation and start-up. Thus, the flushing fitting can be
used at several construction sites - just like a tool. Furthermore, the
introduction of impurities due to unauthorised access is prevented.
Consisting of:

 20 flushing fittings.
 20 hose clamps.
 1 roll of tubing, 15 m
 Mounting instructions.

Complete in 130 mm Sortimo case, suitable for
Sortimo vehicle equipment.

151 180

Hose for flushing fittings

50 m roll 151 648e

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

26

Flushing water calming tank

When flushing though drinking water installations, the
flushing water calming tank serves to ensure steady
draining of the flushing water into a floor drain or toilet.
As per DVGW work sheet W 557 when flushing with a
mixture of air and water, the withdrawal points must be
fitted with the relevant equipment in order to separate
the air from the flushing water.

Up to 6 flushing tubes with max. 5 m³/h can be safely
attached to the flushing water calming tank. Thanks to
the integrated free outlet, safe separation of the drinking
water installation and the drain is ensured and back
suction is prevented. Individuals at the withdrawal points
are protected against aerosols and the water flows
steadily into the drain. The discharge of pollution and
clouding in the flushing water is visible. A substructure
box is included in the scope of supply for draining off
water, e.g., into a toilet. This box is also used to
transport various connection parts.

 Flow

Qmax 5 m³/h

 Inlet connection

6 x tube nozzles 13 mm
(cap nut 3/4")

 Outlet connection HT pipe DN 100
 Dimensions (without connections)

(B x T) 400 x 300 mm

 Height (without/with substructure box)

340/660 mm.

 Height outlet connection

(without/with substructure box) 175/498 mm 151 020

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

27

7.3 Consumables

To ensure reliable operation of the flushing compressor, only use
original consumables.

 Air suction filter for the compressor aggregate. 151 665e



Filter insert for the flushing air pressure regulator. 899 50 943

7.4 Spare parts

Spare parts and consumables are available from the representatives
responsible for your region.

7.5 Wearing parts

Seals and moving parts are subject to a certain degree of wear and tear.



Note: Although these are wearing parts, we grant a limited warranty
period of 6 months. The same applies for electrical components.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

28

D Installation for flushing and disinfection of drinking water

installations

1 | General installation instructions



Note: The general and safety instructions in chapter A as well as the
designated application, application limits and technical specifications in
chapter C must be observed.



Note: For the installation of the flushing compressor with accessories
(see chapter C), the relevant operation manuals must also be followed.



Note: Prior to using the flushing compressor, it may be necessary to
perform the work described under maintenance and care in chapter H.

1.1 Electrical
installation

A Schuko socket is required for electrical installation. This must comply
with the specifications in chapter C, "Technical specifications" or the
type designation plate. The flushing compressor must be set up close to
this Schuko socket. The flushing compressor mains cable is approx.

1.8 m in length.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

29

1.2 Sanitary
Installation

When installing the GENO®-flushing compressor 1988 K certain rules
must always be followed. Additional recommendations facilitate work
with the GENO®-flushing compressor 1988 K.

Binding rules

The installation of a flushing compressor represents a major intervention
in the drinking water installation and thus must only be performed by an
approved installation company.

Observe the local installation guidelines and the general regulations.

Warning! Risk of infection due to germ-infested water. In stagnant
water germs can multiply beyond safe limits. Ensure good hygiene when
working on and with the flushing compressor. Always drain off any
remaining water / disinfect parts which have come into contact with
water.



Note: Prerequisites for flushing, disinfection and commissioning of a
drinking water installation:

 a house connection for the water supply which has been flushed

through by a water company and approved for use,

 availability of water as per the German water drinking ordinance

(TrinkwV),

 that pressure and leakage tests have been performed on the drinking

water installation as per DIN EN 806-4 6.1 and that the results were
documented

 that a filter as per DIN EN 13443-1 is fitted on the house connection.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

30

Suitable connections must be ensured on-site for integration of the
flushing compressor into the installation. That's why, during planning
and installation, an adjusting piece should be fitted immediately
downstream of the filter (see chapter C, accessories) in order, when
commissioning, to have the option of temporarily connecting the
relevant devices, such as a pressure booster, flushing compressor or
disinfection device. In subsequent operation, water treatment systems,
e.g., water softeners, can be integrated at this point if the quality of the
water should render this necessary.

Fig. D-1: House connection with fine filter and adjusting piece

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

31

2 | Installation of the flushing compressor in pipelines

The flushing compressor is integrated into the installation using the
flexible connection tubes included in the scope of supply.



Note: The information on flow direction must be followed when
installing the flushing compressor in the piping.



Note: For the installation examples shown below, the optional
connection fitting cases are required (see accessories)

Fig. D-2: House connection with fine filter and flushing compressor

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

32

2.1 Integration of a flushing compressor in place of a filter with an installation length of
100 mm

Warning! When using the filter from the connection fitting case, a new

filter cartridge must be used for each flushing operation.

For this connection type, the parts for the nominal widths ¾", 1" and
1¼" are included in the connection fitting cases ¾" - 2". In each case
the installation length is 100 mm.

 Replace the on-site filter with a flushing adapter.

 Fit the BOXER

®

K fine filter with double screw connection G1" on the
flushing compressor. Fit the adapter IG 1"-24 mm on the filter on the
inlet side. Then connect with the connection tubes.

Fig. D-3: Installation example of integration of a flushing compressor in place of a fine
filter

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

33

2.2 Integration of a flushing compressor in piping in place of, for example, an adjusting
piece

For this connection type, the parts for the nominal widths 1", 1 ¼", 1
½" and 2" are included in the connection fitting cases ¾" - 2".

The installation length of these fittings is variable and in conjunction
with the connection bracket they can be used as of an installation
length of approx. 175 mm.
As of an installation length of approx. 300 mm, connection is possible
without a bracket.

With shorter distances, installation with a connection bracket

(e.g., in place of a 1" and 1¼" adjusting piece with 190 mm).

 Replace the on-site adjusting piece with adapters and brackets and

integrate the flushing compressor with connection tubes.

Fig. D-4: Installation example of a flushing compressor with connection bracket

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

34

With longer distances, installation without a connection bracket

(e.g., in place of a 1 ½" and 2" adjusting piece with 330 mm).

Fig. D-5: Installation example of a flushing compressor without connection bracket

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

35

2.3 Integration of several parallel-connected flushing compressors in piping in place of, for
example, an adjusting piece

For this connection type, the parts for the nominal widths 1½", 2", DN
65 and DN 80 are included in the connection fitting cases 1½" - DN 80.

With 1½", 2" and DN 65 for parallel connection of 2 flushing
compressors
With DN 80 for parallel connection of 2 or 3 flushing compressors

The installation length of these fittings is variable.

 As of an installation length of approx. 300 mm, the connection pipes

can be fitted directly on the adapters as shown below.

 If the connection bracket is also used, a connection can be made as of

an installation length of approx. 190 mm.

If with DN 80 only two flushing compressors are used, the two other
connections on the reducing flanges are sealed with caps.

 Replace the on-site adjusting piece or device with an adapter and

integrate the flushing compressor with connection tubes.

Fig. D-6: Installation example of parallel integration of two flushing compressors

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

36

2.4 Additional assembly of an optional system divider on the flushing compressor for
disinfection of pipelines

System divider on the flushing compressor inlet

The components necessary for this connection version are included in
the connection fitting cases ¾" - 2".

 Install the system divider with insert 1 ¼" - IG 1" and cap nut G 2"

on the flushing compressor.

 On the inlet side of the system divider install the insert 1 ¼" - 24 mm

with cap nut G 2".

Fig. D-7: Example of assembly of the system divider on the flushing compressor inlet

Filter and system divider on the flushing compressor inlet



Install the system divider with insert 1 ¼" - IG 1" and cap nut G 2"
on the flushing compressor.

 On the inlet side on the system divider, install the BOXER K fine filter

with insert 1 ¼" - IG 1" and cap nut G 2".

 On the inlet side on the BOXER K fine filter, install the adapter IG 1" -

24 mm.

Fig. D-8: Example of assembly of the filter and system divider on the flushing
compressor inlet

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

37

3 | Installation of accessories for draining the flushing water



Note: For the installation examples shown below, the optional closing
plug and flushing fitting cases as well as the flushing water calming tank
are required (see chapter C, accessories)

Warning! The flushing tube to the drain must be secured during
flushing as the water flows out in a pressurised and pulsating manner.
For hygiene reasons the ends of tubes must not be pushed into drain
pipes and drains or connected to these. To prevent back suction, proper
separation of the drinking water installation from the drain must be
ensured via a free outlet. As per DVGW work sheet W 557 when
flushing with a mixture of air and water, the withdrawal points must be
fitted with the relevant equipment in order to separate the air from the
flushing water. This serves to protect individuals at the withdrawal points
against aerosols.

These requirements are satisfied through use of the flushing water
calming tank (see fig. 10 and 11), order no. 151 020.

If Grünbeck closing caps have already been fitted on the withdrawal
points, e.g., for checking the pressure of new installations, the cap can
be screwed off and the flushing fitting can be directly connected.

If standard closing plugs, or in the case of existing installations other
fittings
(e.g., angle valves, …), are attached, these are to be replaced with the
Grünbeck closing plugs. The flushing fitting is fitted to the Grünbeck
closing plug and the flushing tube is guided to the drain.

Fig. D-9: Closing plug and flushing fitting assembly

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

38

Fig. D-10: Example of installation of the flushing water
calming tank with floor drain

Fig. D-11: Example of installation with toilet bowl

Fig. D-12: Withdrawal point on bath fitting with closing plug and flushing fitting as
well as flushing insert from the manufacturer in the flush-mounted device for separate
flushing of hot and cold water lines.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

39

Fig. 13: Toilet tank (disassembled angle
valve) with closing plug and flushing
fitting

Fig. D-14: Toilet tank – flushing without
angle valve disassembly as stipulated by
manufacturer

4 | Preparation of the drinking water installation for rinsing

Proper planning of the flushing process pays off during implementation.
We therefore recommend assessing the installation and checking the
installation plans to ensure they are up-to-date before flushing.
Particularly with sanitation flushing, any new angle valves and spare
parts for the fittings which may be required can be kept in reserve and
the customer can be informed of their necessity in advance.

1. Sensitive fittings (e.g., WC flushing fittings, thermostatic mixers) are

to be disassembled or avoided in order to prevent flushing in
contamination.

2. Surface-mounted fittings should be disassembled prior to flushing.

3. In the case of flush-mounted fittings, suitable flushing fittings and

special flushing connections from the manufacturer can be used for
flushing. With fittings which cannot be disassembled or avoided, the
fine filters are to be either removed or the instructions provided by
the fitting manufacturer are to be followed.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

40

4. Drinking water heaters and water treatment devices (e.g., softening

and dosing systems) must be removed or avoided.

5. Flushing of circulation lines.

Prepare installation (e.g., see Fig. 15) and flush the hot water line in
the same way as described in point 8.
Then:

 Close the withdrawal points (1).
 Open the shut-off valve on the outlet tube (2) and flush the

circulation line.

 If in larger installations, shut-off valves (3) are installed on each

level in the circulation line, these are to be flushed in succession,
starting at the highest point.

1

Withdrawal points

2

Outlet tube with shut-off valve

3

Shut-off valves

4

Drinking water manifold

5

Drinking water filter, e.g., BOXER

®

KD

Fig. D-15: Example of installation of the circulation line

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

41

6. In the case of low water pressure, it may be necessary to integrate a

pressure booster when flushing in order to achieve the necessary
minimum flow speed. A sufficient flow speed and the correct inlet
pressure are important for the success of flushing. We recommend a
water inlet pressure of approx. 4-5 bar. Pressure-reducing fittings
(e.g., pressure regulators) which reduce the inlet pressure to below
the recommended pressure should thus be removed.
Under ideal conditions, the compressed air bubble which is fed in is
kept short, water turbulence is ensured and the dirt is discharged. If
the inlet pressure is not sufficient or the flow rate is low, the air
bubble expands too quickly and, consequently, the water and air
are unmixed which reduces the effectiveness of cleaning.

7. Determine the flushing sections. Depending on the size of the

installation and how the piping is arranged, the installation may
have to be flushed in sections. The maximum flushing section length
must not exceed 100 m. We recommend providing for separation
points when planning and installing and also fitting adjusting pieces
(see accessories).

8. Determine the flushing order. Flushing must be performed starting

with the nearest withdrawal point and finishing with the point
which is furthest away. Accordingly, the ascending pipes are to be
flushed in the following order, A, B and then C. The floor lines are
flushed starting with I, then II and then III as well as in the floor lines
from 1 to 3 to ensure that contamination is flushed out of the
installation via the shortest route, see Fig. D-16.

Fig. D-16: Flushing order of the installed sections

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

42

9. Determine the minimum flow speeds of the flushing sections.

DIN EN 806-4 6.2.3 recommends a minimum flow speed of 0.5 m/s
in each piping section when flushing drinking water installations
prior to commissioning.
With sanitation flushing of corroded piping, we recommend a
minimum flow speed of 1.5 m/s.

Table based on EN 806-4 6.2.3 Table 7. Recommended minimum flow

rate and minimum number of withdrawal points which are to be
opened for flushing depending on the largest nominal diameter of the
piping in the flushed section for the minimum flow speeds of 0.5 m/s /

1.5 m/s.

Largest nominal diameter of the piping in the
flushed section

[DN] 25 32 40 50 65 80 100

[Inches] 1" 1 ¼" 1 ½" 2" 2 ½" 3" 4"

The following thus applies for flushing with a minimum flow rate of 0.5 m/s
Recommended minimum volumetric flow rate [m³/h] 0.9 1.4 2.3 3.5 6.0 9.0 14.1
Parallel connection of flushing compressors [Number] 1 1 1 1 2 2 ­Minimum number of withdrawal points with DN

15 or equivalent cross sectional area which are to
be fully opened

[Number] 1 2 3 4 6 9 14

The following thus applies for sanitation flushing with a minimum flow rate of 1.5 m/s
Recommended minimum volumetric flow rate [m³/h] 2.7 4.3 6.8 10.6 17.9 27.1 42.4
Parallel connection of flushing compressors [Number] 1 1 2 2 - - ­Minimum number of withdrawal points with DN

15 or equivalent cross sectional area which are to
be fully opened

[Number] 3 5 8 12 20 30 47



Note: The current flow in m³/h can be read off the GENO®-flushing
compressor 1988 K display.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

43

5 | Preparation of the drinking water installation for

disinfection as per DVGW work sheet W 557

Danger! During disinfection of the system, drinking water is not

available to consumers from the drinking water installation. It must be
ensured that no water intended for drinking can be withdrawn from the
treated system by taking suitable measures. If necessary, drinking water
must be made available from a different source.

Danger! There must be a sufficient number of personnel available to
perform system disinfection. The personnel must be instructed
beforehand; if necessary suitable safety equipment is to be made
available. Risks due to chemicals are to be avoided by taking suitable
measures.



Note:

 Before initiating a disinfection measure, the cause and location of the

contamination must be established as far as possible. System
disinfection is only a long term solution if the causes of contamination
are remedied. Otherwise the success hereof is only short term.

 As per DVGW work sheet W 557 the system must always be cleaned

prior to system disinfection. This essentially involves flushing the
piping with a mixture of water/air and cleaning (e.g., descaling ...) the
apparatus and parts.

 In order to disinfect all withdrawal points, these must be identified,

documented and made accessible for disinfecting beforehand. An up­to-date as-completed drawing (revision plan) should be available.

 System disinfection places a strain on the component materials used in

the drinking water installation which can result in the installation
being damaged (see W 557 7.5). Regular system disinfection in order
to prevent contamination is thus not recommended. Contaminated
components, e.g., apparatus and fittings, which cannot be disinfected
by taking the designated measure must be removed and either
disinfected separately or replaced. In order to minimise partial material
corrosion, it is recommended that disinfection be performed in stages.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

44



Dead lines must be removed from the drinking water installation prior
to disinfection.

 By way of principle, it is said that micro-organisms can only be

effectively killed or inactivated when the disinfectant can act directly
on the later. As such, sufficient concentrations of the disinfectant
must be able to access all areas of the drinking water installation.

 Dosing of the disinfectant is done in a volume-controlled manner

upstream of the system section to be disinfected.

The GENO®-flushing compressor 1988 K is installed in the same way as
in the installation examples in fig. D-3, D-4, D-5. In addition, a system
divider is installed in the water inlet line to the flushing compressor, as
shown in fig. D-7, D-8, D-17 Please note the relevant instructions for
assembly of the dosing system.

1

Drinking water filter, e.g., BOXER® KD (on-site)

4

GENODOS® DM-SK dosing system
(accessory)

2

Connection pieces (accessories in case with connection
fittings ¾“-2“)

5

GENO®-DK 2, 1 system divider (accessory)

3

Dosing solutions (accessory)

Fig. D-17: GENO

®

-flushing compressor 1988 K with optional dosing system GENODOS®DM-SK

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

45

E Flushing and disinfection of drinking water installations



Note: The DVGW work sheet W 557 Cleaning and Disinfection of
Drinking Water Installations and ZVSHK (German Central Association
Plumbing, Heating, Air Conditioning) instruction sheet "Flushing,
disinfection and commissioning of drinking water installations" include
all the key requirements for practical application.

1 | General

If a drinking water installation is not operated immediately after filling
and flushing or disinfection, in accordance with DIN EN 806-4 6.2.1, the
water must be replaced at regular intervals and at the latest after 7 days

The prerequisites for flushing are installation and preparation as per
chapter D, compliance with the instructions of the manufacturers of the
parts used in the installation as well as observance of the local
conditions and regulations.

2 | Flushing of pipes with a water/air mix

1. Close all withdrawal points.

2. Completely open all shut-off fittings (e.g., maintenance fittings) in

the piping section to be flushed.

3. Insert the flushing compressor power plug and press the program

button "water/air mix" on the flushing compressor control unit (the
compressor aggregate fills the compressed air vessel).

4. Slowly open the on-site water inlet shut-off fitting. The flushing air

pressure automatically adjusts to the water pressure (the
compressed air is fed into the water stream in a volume-controlled
and pulsatile manner as soon as there is a flow as a result of
opening the withdrawal points).

5. Deaerate the entire drinking water installation via, for example, the

withdrawal points and check that the components installed (e.g.,
bypasses ...) are leakproof.

6. Open the withdrawal points of the flushing section in accordance

with the flushing order, fig. D-16 pos.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

46

7. The volumetric flow is shown on the control unit of the flushing

compressor. If the recommended minimum volumetric flow as per
the table in chapter D 4 point 9 is not reached, this can be
optimised by taking suitable measures, e.g., integration of a
pressure booster (also see chapter D 4).

8. Th duration of flushing is based on the length of the flushing section

and should amount to a minimum of 15 seconds for each metre.
The duration of flushing of each withdrawal point should be at least
2 minutes. Flushing can be concluded one particles are no longer
flushed out of the withdrawal points and clear water emerges.

9. Once the necessary flushing parameters have been achieved, the

withdrawal points are closed again in reverse order.

10. Close the water inlet again and depressurise the installation.

11. Flushing is documented in the flushing log. By way of additional

documentation, in particular with sanitation flushing, photos of the
dirt which has been flushed out are also recommended in order to
demonstrate the success and necessity of flushing to the customer.

12. Disassemble the flushing compressor and flushing fittings and

reinstall the installation.

13. If proof of the perfect condition of the water is required, arrange a

water inspection.

14. Commission the installation and hand over to the operator.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

47

3 | Performing system installation as per DIN EN 806-4 and

DVGW work sheet W 557

Danger! Dosing of the disinfectant may only be performed in cold

water, for this reason the warm water heater must be switched off and
prevented from being accidentally turned on again.

Danger! The water does not comply with the German drinking water
ordinance during the entire disinfection process. The authorised
withdrawal of water must be prevented by taking suitable measures.
Shut off/block the installation affected by disinfection from the other
parts of the installation.

Danger! The safety data sheets, application instructions and
information on disposal of the disinfectant used are to be observed and
the designated personal protective equipment is to be worn.

Warning! The dosing system DM-SK as well as the accessories used
must be in a hygienically perfect condition and, particularly when not
used for extended periods, must be disinfected beforehand.



Note: The work sheet DVGW W 557 Cleaning and disinfection of
drinking water installations summarises the key requirements for
practical use.



Note: Disinfection should be performed in stages in order to minimise

partial material corrosion.

A water/disinfectant mixture is used to disinfect pipelines.
The disinfectant GENO

®

-Chlor-A (chlorine) or

GENO

®

-perox (hydrogen peroxide) is added with the dosing system
GENODOS® DM-SK. The dosing pump is controlled by the flushing
compressor electronics.

Make the settings on the GENODOS® dosing pump according to the
designated disinfectant stipulated in Table 1.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

48

Table 1:
Disinfectants Water meter GENODOS® dosing system

Application

concentration
as per DVGW
work sheet W
557

Size of the

GENODOS

®

pump

Dosing pump setting
Stroke

setting

Operat

ing

mode

Facto

r

GENO®-Chlor A 50 mg/l

Flushing
compressor

DM-SK 10/40 37%* 0 0

GENO®-perox 50 mg/l

Flushing
compressor

DM-SK 10/40 42 %* 0 0

*with a water pressure of 5 bar, max. permissible flow 5 m³/h

Further information on performing disinfection is given in the operation
manual of the dosing system GENODOS® DM-SK and in the DVGW work
sheet W 557.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

49

F Rinsing of silted up floor heating systems

1 | General

Attention! The prerequisite for flushing a heating system is a

sufficiently large free flow cross section. If the free flow cross section is
too small, the deposits which are loosened can block the cross section.

Attention! Please note the maximum permissible operating pressure of
the heating system to be flushed as well as the additional load which
occurs due to the pulsatile flushing with the water/air mix, in particular
with the continuous blast air function.

Warning! To secure the drinking water supply, a system divider must be
installed upstream of the flushing compressor.

2 | Preparation for rinsing

When flushing floor heating systems, filtered drinking water is fed in
from the withdrawal point via a system divider into the inlet flow of the
heating system and then drained off to the drainage system. A flushing
water calming tank is installed to ensure the steady and safe draining off
of flushing water. When flushing with a water/air mix, the flushing
compressor is additionally integrated between the system divider and
the floor heating system inlet flow.

Grünbeck recommends firstly completely emptying the floor heating
system and flushing it through with water in order to rinse out most of
the loose silt deposits. To improve the effectiveness of rinsing, the
heating water should be conditioned with GENO®-safe A whilst the
circulator pumps are still running. This enables improved infiltration,
detachment and dispersing of rust and silt deposits. After an exposure
time of approx. 6-8 weeks, flushing is performed again with water and
then with a mixture of water and air in order to discharge the
contamination in stages and prevent blockages.

If sensitive fittings are installed in the heating manifold, these must be
completely opened or removed as per the manufacturer's instructions.
If, according to the manufacturer's instructions, this is not possible or
permissible, the heating system must be directly connected and flushed
through. The description below assumes that flushing is possible via the
heating manifold when the heating system shut-off fitting is completely
open. The heating system to be flushed must be separated or blocked
off from other parts of the heating installation. Do not perform flushing
via the heating boiler.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

50

 Fit an outlet tube to the return connection of the heating system to be

flushed, guide this to the drain and fix in place or use a flushing water
calming tank (see accessories).

 Install the system divider on the water inlet of the flushing compressor

as per Fig. D-7 or D-8 and connect to a drinking water withdrawal
point using a connection tube.

 Check the inlet water pressure and, if necessary, set to a value

permissible for the heating system using an on-site pressure regulator.

 A shut-off fitting should be fitted to the inlet flow connection. Close

this fitting to prevent heating water flowing back in the connection
tube of the flushing compressor.

 Connect the water outlet of the flushing compressor with a

connection tube on the shut-off fitting (inlet flow connection).

3 | Rinsing of floor heating systems with water and a mixture of water and
air

Attention! The flushing tube to the drain must be secured during

flushing as the water flows out in a pressurised and pulsating manner.

 Slowly open the on-site drinking water withdrawal point on the

flushing compressor's water inlet.

 To flush with water, slowly open the shut-off fitting on the inlet flow

connection and monitor the flushing process.

 To flush with a mixture of water and gas, insert the power plug of the

flushing compressor and press the program button "Flush with water
+ air" on the flushing compressor control unit.

 The flushing effect can be enhanced by also activating the

"Continuous blast air" function.

 Monitor the progress of flushing on the outlet tube and on the flow

display on the flushing compressor control unit. The duration of
flushing depends on the degree of soiling.

 Flushing of the heating system is normally concluded when particles

are no longer flushed out of the outlet tube and clear water emerges.

 Close the drinking water withdrawal point and then close the shut-off

fitting on the inlet flow connection.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

51

 Flush out all the heating systems to be cleaned one after the other as

described above.

 On conclusion of flushing, disconnect the flushing compressor from

the mains, disassemble the water connections, remove any remaining
water and drain off the condensate on the flushing compressor (also
see chapter 11, point 2, care work).

 Refit and check the heating system in a technically correct manner.
 Fill the heater as per VDI 2035 (see GENO-therm

®

program) and

commission.

Attention! If any parts come into contact with heating water (e.g.
connection tubes from the flushing compressor to the inlet flow
connection), these must be cleaned or labelled so that they are no
longer used for flushing drinking water installations.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

52

G Troubleshooting

1 | Introduction

Operational errors cannot be completely ruled out even when the
flushing compressors have been designed and produced with care and
operated as intended. Table G-1 provides an overview of the possible
errors when operating the flushing compressor, their causes and
remedying.



Note: The general and safety instructions in chapter A as well as the
designated application, application limits and technical specifications in
chapter C must be observed.

Danger! Before performing any maintenance or care work on the
flushing compressor, this must be disconnected from the mains,
depressurised and effectively shut off and protected from pressure
sources. Pull out the power plug and empty the drain valve.



Note: The compressor aggregate features a self-venting start unloader
valve. With proper operation, a longer blast of air can be heard each
time the system is started and a short blast of air is heard when the
system is switched off.



Note: Grünbeck's technical customer service/authorised service
company must definitely be notified in case of errors that cannot be
eliminated with the information given in table G-1! When reporting
errors please also state the designation, order no. and serial no.
of the flushing compressor.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

53

2 | Error messages

Table G-1: Troubleshooting

This is what you observe This is the cause This is what to do

The compressor aggregate
does not start.

The motor makes a buzzing
sound.

Pull out the power plug
immediately!

Motor voltage is too low
due to small cable cross­section with a long cable
length (e.g., extension
cable).

For cables measuring 50 m in length, the
cable cross-section should be at least 2.5
mm² with a 20 A fuse.

Ambient temperature is too
low.

Do not operate the flushing compressor
below 5°C. If the flushing compressor is
undercooled – without connection voltage –
wait until the temperature has adjusted.

No unloaded start.

Unload by releasing the air pressure via the
pressure vessel's drain valve.

No air is supplied despite the
water flow.
The air generator does not
switch on.

Filter element in the
pressure regulator is soiled.

Replace the filter element.

Angled non-return valve
(downstream of solenoid
valve) is soiled.

Clean the angled non-return valve and, if
necessary, replace.

Switching-on point of the
air generator is not
undercut.

Restrain the water inlet pressure until less
than 6 bar is shown on the small
manometer (on the pressure regulator).

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

54

H Maintenance and care

1 | Basic information

Some regular work is necessary in order to ensure the proper
functioning of the flushing compressor in the long term. All regulations
and guidelines which apply at the installation site must be strictly
adhered to.

The following work is to be performed:

 Care work is required regardless of use.
 Inspection at least every 2 months.
 Maintenance at lease once per year.
 An operation log must be kept to document care, inspection and

maintenance work (see the appendix for the operation log). In the
case of operational errors, the operation log helps to identify possible
error sources and verifies the proper monitoring of the flushing
compressor.



Notes: A maintenance contract ensures that all the required
maintenance work will be performed in due time.



Notes: Only use original consumables, accessories and spare parts (see
chapter C, consumables)!

Danger! Before performing any care, maintenance or repair work on
the flushing compressor, this must be disconnected from the mains,
depressurised and effectively shut off and protected from other pressure
sources. Pull out the power plug and empty the drain valve.

Warning! Risk of infection due to germ-infested water. In stagnant
water germs can multiply beyond safe limits. Ensure good hygiene when
working on and with the flushing compressor. Always drain off any
remaining water / disinfect parts which have come into contact with
water.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

55

2 | Care work

This work must be performed regularly by a specialist regardless of how
often the system is used.

Perform before use:

Flush out the water path with drinking water directly into the drain.
If necessary, disinfect the water path, depending on the period of time

since the system was last used and application type (drinking water or
heating system).

Perform after use:

 Drain off the condensation via the compressed air vessel's

condensation drainage valve.
Set up the flushing compressor so that the condensation drainage
valve on the compressed air vessel points downwards and keep this
open until only air comes out.

 Drain off the condensation via the flushing compressor's flushing air

pressure regulator. For this, push the draining nozzle upwards.

 Remove any remaining water from the water path.

3 | Inspection

The regular inspections can be performed by the operator or by a

trained expert contracted by him.
 Visual inspections to ensure the perfect condition of safety devices

(e.g., housing parts, motor protective grid, ...), electric cables, tubes
and actuate the safety valve (pull the ring downwards, air flows out.
This is leakproof again when the ring is released).

In the case of any damage to electrical or pressurised components,
disconnect these from the mains or depressurise them and have them
checked/repaired by a specialist.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

56

4 | Maintenance

Maintenance work must be performed regularly after use, or at least

once per year, as otherwise the warranty claim will become void.
Maintenance work must be carried out by properly trained specialists or
the Grünbeck technical customer service/authorised service company.

Once per month or more frequently depending on how dirty the
ambient air is, if the system is only used periodically once per year.

 Replace the air suction filter on the compressor aggregate.

Attention! Never operate the compressor aggregate without the air
suction filter!

At least once per year, possibly more often depending on contamination
levels.

 Replace the filter insert on the flushing air pressure regulator of the

flushing compressor.

 As part of maintenance activities, all the work listed under "Care

work" and "Inspection" must also be performed.

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

57

5 | Operation log

System type: GENO®-flushing compressor 1988 K Order no. 151 200 Serial no.: ........................

Work performed Execution confirmed

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/
Signature:

...........................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/

Signature: ...........................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/

Signature: ...........................................

........................................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/
Signature:

...........................................

........................................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

58

System type: GENO

®

-flushing compressor 1988 K Order no. 151 200 Serial no.: ........................

Work performed Execution confirmed

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/

Signature: ...........................................

........................................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/

Signature: ...........................................

........................................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/

Signature: ...........................................

........................................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/

Signature: ........................................... :

........................................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

GENO®-flushing compressor 1988 K

Order no. 015 151 963-inter Created: KONS-gmei-mrie G:\BA-151963-INTER_GENO-SPUELKOMP-1988_K.DOC

59

System type: GENO

®

-flushing compressor 1988 K Order no. 151 200 Serial no.: ........................

Work performed Execution confirmed

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/

Signature: ...........................................

........................................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/

Signature: ...........................................

........................................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/

Signature: ...........................................

........................................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced

Care work

Description ____________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________

Company: ..........................................

........................................................

........................................................

Name:

...............................................

Date/

Signature: ...........................................

........................................................

Inspection

Maintenance

Repair

Air suction filter on the
compressor aggregate
replaced

Filter insert on the
pressure regulator
replaced