Roller Multi-Control S Instruction Manual Download

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Section 6.2 "Flushing the pipes" deﬁ nes under 6.2.1: "The drinking water installation

must be ﬂ ushed with drinking water after installation and pressure testing as well as

immediately before commissioning." "If a system is not put into operation immediately

after commissioning, it must be ﬂ ushed at regular intervals (up to 7 days)." Pressure

testing with compressed air is recommended if this demand cannot be fulﬁ lled.
Section 6.2.2. describes "ﬂ ushing with water".
In section 6.2.3 "Flushing method with a water/air mixture" is described whereby the

ﬂ ushing effect is reinforced by manually or automatically generated compressed air

surges.
Section 6.3 "Disinfection" points out in 6.3.1 that no disinfection is necessary in many

cases but that ﬂ ushing is sufﬁ cient. "However, drinking water installations may be

disinfected after ﬂ ushing is a responsible person or authority prescribes this." "All

disinfections must be carried out in accordance with national or local regulations."
Section 6.3.2 "Selection of the disinfectant" states that: "All chemicals that are used

for the disinfection of drinking water installations must meet the requirements for

chemicals for water treatment which are speciﬁ ed in European standards or, if

European standards are not applicable, in national standards." Moreover: "Transport,

storage, handling and use of all these disinfectants can be dangerous, therefore

health and safety requirements must be strictly observed."
Section 6.3.3 "Procedure for the use of disinfectants" states that the speciﬁ cations

of the disinfectant manufacturer must be observed and that a sample must be tested

bacteriologically after successful disinfection and subsequent ﬂ ushing. Finally it is

demanded that: "A full record of the details of the entire procedure and the test

results must be compiled and submitted to the owner of the building."
Information leaﬂ et "Leak tests of drinking water installations with compressed

air, inert gas or water" (January 2011) of the German Central Association for

Sanitary, Heating and Air Conditioning (ZVSHK)

For Germany

Germany this information leaﬂ et deﬁ nes under "3.1 General" for the national

Germany

regulations: "Due to the compressibility of gases, the rules for the prevention of

accidents "Working on Gas Systems" and the "Technical Rules for Gas Installations

DVGW-TRGI" must be observed for physical and safety reasons when conducting

pressure tests with air Therefore, the test pressures have been deﬁ ned as maximum

0.3 MPa (3 bar), the same as for load and leak tests for gas pipes, in agreement

with the responsible industrial liability insurance association and based on these

rules. The national regulat

The national regulations are thereby fulﬁ lled.

ions are thereby fulﬁ lled.

The national regulat

“

With regard to the test methods A, B and C offered in section 6.1 of EN 806-4:2010

for pressure testing with water, information leaﬂ et "Leak tests of drinking water

installations with compressed air, inert gas or water" (January 2011) T 82-2011 of

the German Central Association for Sanitary, Heating and Air Conditioning (ZVSHK),

deﬁ nes the following for Germany

Germany:

Germany

Germany "For reasons of practicability on the building site,

a modiﬁ ed method based on practical tests which can be used for all materials and

combinations of materials was chosen. The test time has been extended in relation

to the time speciﬁ ed in the standard to allow even the slightest leaks to be detected.

Test method B in accordance with DIN EN 806-4 is the basis for conducting the leak

test with water for all materials."
The following is deﬁ ned:
Leak test with inert gases

Leak test with inert gases (e.g. nitrogen)

Leak test with inert gases

Leak test with inert gases
"In buildings with enhanced hygiene requirements such as medical facilities, hospi-

tals, doctors' practices, the use of inert gases may be required to rule out conden-

sation of the moisture in the pipe." (Not possible with ROLLER’S Multi-Control).
Leak testing with compressed air

Leak testing with compressed air is to be conducted when

Leak testing with compressed air

Leak testing with compressed air
● a longer standstill time between the leak test and commissioning, especially at

average ambient temperatures > 25°C, is to be expected to rule out possible

bacterial growth,

● the pipe system cannot remain completely full from the leak test to commissioning,

e.g. during a frost period,

● the corrosion resistance of a material in a partially drained line is endangered
Leak testing with water

Leak testing with water can be conducted when

Leak testing with water

Leak testing with water
● changing of the water can be ensured at regular intervals, after seven days at

the latest, from the time of the leak test to commissioning of the drinking water

installation. Additionally when

● it is ensured that the house or building water connection is ﬂ ushed and therefore

released for connection and operation,

● the pipe system is ﬁ lled using totally hygienic components,
● the system remains full from the leak test to commissioning and partial ﬁ lling can

be avoided.

Drinking water directive in the version of 2nd of August 2013, § 11

For Germany

Germany the drinking water directive in the version of the 2nd of August 2013 in

Germany

§ 11 "Treatment materials and disinfection methods" deﬁ nes that only treatment

materials contained in a list of the Federal Ministry of Health may be used for the

disinfection of drinking water. This list is maintained by the Federal Environment Ofﬁ ce.
Technical Rule – Worksheet DVGW W 557 (A) October 2012 of the DVGW

German Gas and Water Association

For Germany

Germany, further instructions for the "Cleaning and Disinfection of Drinking Water

Germany

Installations" can be taken from the Technical Rule - Worksheet DVGW W 557 (A)

October 2012 of the German Association of the Gas and Water Trade (DVGW).
Section 6 "Cleaning" speciﬁ es under 6.1 "General, aim of the cleaning": "Cleaning

must be implemented as the ﬁ rst measure in case of an existing microbial contam-

ination of the nature of the drinking water. It may be necessary to disinfect the

installation additionally after cleaning."

Section 6.3 "Cleaning methods" describes the ﬂ ushing methods "ﬂ ushing with water"

and "ﬂ ushing with an a water/air mixture" which are basically familiar from EN 806-4.

Contaminations can enter the pipe system during new installation and repair work;

there may even be a danger of microbial contamination. Section 6.3.2.2 "Flushing

with a water/air mixture" explains: "To remove encrustations, deposits or bio-ﬁ lms

in existing pipes, ﬂ ushing with water and air is necessary to achieve an enhanced

cleaning performance. The full coverage turbulent ﬂ ow causes locally high forces

to mobilise deposits. The water requirement is reduced considerably in comparison

with ﬂ ushing with water."
Section 7 "Disinfection" describes the thermal and especially the chemical installa-

tion disinfection as a discontinuous measure for the decontamination of a drinking

water installation in detail. "Installation disinfection must only be carried out by

specialist companies." Section 7.4.2 lists 3 "proven disinfection chemicals", hydrogen

peroxide H

peroxide H O

, sodium hypochlorite NaOCl and chlorine dioxide ClO

, their respective

application concentration and exposure time. For example, the application concen-

tration for hydrogen peroxide is 150 mg H

/l and the exposure time 24 hours.

Appendix A contains further information about these disinfection chemicals, e.g.

about application and work safety. Appendix B contains statements on the material

resistance to the recommended disinfection chemicals.
Information leaﬂ et "Flushing, disinfection and commissioning of drinking

water installations" (August 2014) of the German Central Association for

Sanitary, Heating and Air Conditioning (ZVSHK)
For Germany

Germany, the information leaﬂ et "Flushing, disinfection and commissioning of

Germany

drinking water installations" (new version August 2014) of the Central Association

for Sanitary, Heating, Air Conditioning (ZVSHK), Germany, contains the originally

deﬁ ned methods for ﬂ ushing and disinfecting drinking water installations. These are

largely conﬁ rmed by EN 806-4:2010 and the Technical Rule - Worksheet DVGW W

557 (A) October 2012 of the DVGW German Gas and Water Association. It deals

in particular with additional chemical disinfectants and describes thermal disinfection.
Technical Rules for Gas Installations

European standard EN 1775:2007 "Gas supply – gas pipe systems for buildings"

This European standard EN 1775:2007 "Gas supply – gas pipe systems for buildings"

cites in section 6 Testing 6.1.1 "New pipe systems or every existing pipe system on

which work was carried out as described in 8.5, may only be put or put back into

operation when the test prescribed in section 6 have been conducted successfully."

Air is recommended to be used preferably as a test medium. A strength test as a

function of the maximum permissible operating pressure MOP is demanded followed

by a leak test. "The applied leak test pressure must be:

– at least equal to the operating pressure;

– usually not higher than 150% of the MOP, providing that the MOP is above 0.1 bar.“

"For pipe systems with an MOP ≤ 0.1 bar, the leak test pressure may not be

> 150 mbar."

The users of this European standard must be aware that detailed national standards

and/or Technical Rules can exist in the CEN member states. In case of contradictions

due to more restrictive requirements in national laws/regulations than in this standard,

national laws/regulations have priority as explained in the CEN Technical Report

CEN/TR 13737.
Technical Rule – Worksheet G 600 April 2018 (DVGW-TRGI

2018

2018) of the DVGW

2018

German Gas and Water Association

For Germany, the Technical Rule – Worksheet G 600 April 2018 (DVGW-TRGI

2018

2018)

2018

"Technical rule for gas installations" of the DVGW German Gas and Water Associ-

ation, must be observed.
Section 5.6.2 "Safety measures during the tests" deﬁ nes: "The max. test pressure

may not exceed the value of 3 bar. According to section 5.6.3 the tests may be

carried out optionally with compressed air. The following applies according to section

5.6.4: "Pipe systems with operating pressures up to and including 100 mbar are

subjected to the following tests:

a) Load test

b) Leak test

c) Usefulness test for systems in operation"

The usefulness test cannot be carried out with ROLLER’S Multi-Control.
Industrial liability insurance association rule "Operation of work equipment",

BGR 500, April 2008, chap. 2.31, Working on gas pipes

This rule of the legal German accident insurance must be observed for Germany.

1.1. Scope of Supply

ROLLER’S Multi-Control SL/SLW, electronic ﬂ ushing and pressure testing unit

with compressor or ROLLER’S Multi-Control S, electronic ﬂ ushing unit with

compressor,

2 suction/pressure hoses 1", 1.5 m long, with 1" hose screw ﬁ ttings,

1 compressed air hose 8 mm, 1.5 m long, with quick couplings NW 5, for

pressure testing with compressed air (ROLLER’S Multi-Control SL/SLW),

1 high-pressure hose ½", 1.5 m long, with ½” hose screw ﬁ ttings, for pressure

testing with water (ROLLER’S Multi-Control SLW),

1 connecting hose compressor/water connections, 0.6 m long, with quick coupling