REMS Multi-Push S Betriebsanleitung Seite 27

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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)
The following must be observed for Germany
entire system must be fl ushed at all tapping points until the concentration of
the disinfectant at all tapping points measured at the transition point (usually
the water meter) is reached or dropped below again.
To be observed for disposal: "If the water used for disinfection of an installation
is to be drained into a drain pipe or sewer, the responsible department must be
informed and the water may only be drained when the responsible department
has granted its permission." "Because of the rapid decomposition, the disposal
of hydrogen peroxide by draining into the sewer system is unproblematical."
A maximum line length of 100 m is specifi ed for fl ushing sections in the European
standard EN 806-4:2010 and in the 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
this length a volume of approx. 20 l is required for a ½" galvanised steel pipe
and a volume of approx. 100 l disinfectant for a 1 ¼" pipe (see Fig. 6: Volume
in l/m of different pipes).
Depending on the volume of the individual pipe sections, several pipe sections
can be disinfected with one bottle of REMS Peroxi Color dosing solution (see
Accessories 1.2 Article Numbers). However, it is recommended not to use an
opened bottle for longer than one day because the dosing solution loses in
concentration. Hydrogen peroxide decomposes in time and loses its effect
depending on the environment in which it is stored. Therefore the concentration
of the dosing solution should be checked for effectiveness before every disin-
fection. To do this, fi ll a clean, sealable container with 100 ml of water and draw
1 ml of dosing solution from the bottle using the pipette provided with every
carton of REMS Peroxi Color and add it to the container (ratio 1:100). Seal the
container and shake well. The concentration of the container contents is meas-
ured with the test strip (Art. No. 091072) according to the instructions printed
on the test strip package. This should be ≥ 150 mg/l H
Open the bottle (21), remove the locking ring from the bottle cap and pour the
delivered dye (20 ml bottle) into the bottle (21) immediately before the disin-
fection process. Close the bottle and shake it so that the dye mixes evenly with
the hydrogen peroxide.
CAUTION CAUTION
The dye is not harmful to the health but very intensive and is very diffi cult to
remove from the skin or clothing. Therefore pour the dye into the bottle carefully.
Fit bottle to the disinfection unit REMS V-Jet TW as shown in Fig. 7 (21). The
nozzles installed in REMS V-Jet TW and REMS V-Jet H for automatic dosing
of dosing solution, cleaner and corrosion protection are different sizes and
adapted to the properties of the REMS ingredients to be injected. Therefore
make absolutely sure that REMS V-Jet TW is connected for disinfection of
drinking water pipes. Select program Ingredients \ disinfection DW. During the
fi lling process, all tapping points on the drinking water installation must be
opened one after another, starting with the furthest away, until the dyed disin-
fection solution emerges at the respective tapping point. If the tapping point
is in a dark environment it is helpful to hold a white background (e.g. a sheet
of paper) behind the outlet in order to be able to see the disinfection solution
better.
The supply to the disinfection unit before REMS Multi-Push and the drain to the
drinking water installation must be shut off at the end of the disinfection process.
Then the bottle (21) must be removed slowly so that Then the bottle (21) must be removed slowly so that excess pressure can escape. Then the bottle (21) must be removed slowly so that excess pressure can escape.
After 24 hours exposure (recommendation of the German Central Association
for Sanitary, Heating and Air Conditioning (ZVSHK) and recommendation of
the German Association of the Gas and Water Industry (DVGW), the disinfec-
tion solution must be fl ushed out of the drinking water installation with REMS
Multi-Push. To do this, all tapping points must be opened again one after another,
starting with the nearest, until there is no longer any trace of the dyed disinfec-
tion solution.
Additionally, peroxide test strips can be used if necessary to check the concen-
tration (accessories, see 1.2 Article numbers).
NOTICE NOTICE
Hoses used for disinfection/cleaning should no longer be used for pressure
testing with water and for fl ushing drinking water pipes.
3.3 Testing drinking water installations with compressed air program (REMS
Multi-Push SL/SLW)
WARNING WARNING
For Germany Germany the 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) defi nes the
following for the national regulations under "3.1 General":
"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/43.5 psi, 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 regulations are
thereby fulfi lled."
Germany: "At the end of disinfection, the
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The respective national safety provisions, rules and regulations valid for
the application site must be considered and observed.
Before conducting a test with compressed air, it must be assessed whether the
installation to be tested will withstand the preset/selected test pressure "p refer".
The ambient temperature, the temperature of the test medium and the atmo-
spheric air pressure can infl uence the result of the test because they affect the
measured pressures. Changes in these parameters must be considered, if
necessary, in the evaluation of the test results.
Section 6 of EN 806-4:2010 defi nes among other things that: "Installations inside
buildings must be subjected to pressure testing. This can be done either with
water or, if national regulations allow, oil-free, clean air with low pressure or inert
gases may be used. The possible risk from high gas or air pressure in the system
must be considered." However, apart from this note, the standard EN 806-4:2010
contains no test criteria whatsoever for testing with compressed air.
The tests described below and the defaults stored in the REMS Multi-Push
correspond to the 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). Future changes
to this information leafl et or the respective valid provisions, rules and regulations
for the application site must be considered and changed test criteria (test
sequences, pressures and times) must be corrected in the defaults.
The programs can be aborted at any time with the Esc button (10). Then all
the valves open and the pressure in the installation is released. The tests are
saved but "Cancel" is shown in the fi le.
The pressure test must be repeated if necessary or the installation must be
checked and improved.
NOTICE NOTICE
The controller ends the control process to set the selected test pressure for
tests with compressed air ≤ 200 mbar at a tolerance of ±3 mbar and for tests
≤ 3 bar (if necessary ≤ 4 bar) at a tolerance of ±0.1 bar. This means that the
control is ended, e.g. when setting p refer = 150 mbar at a value p actual
between 147 and 153 mbar or when setting p refer = 3 bar between 2.9 and
3.1 bar. This tolerance is safe because, in the pressure test with compressed
air, the relative pressure change of pressure p refer is decisive. If ENTER is
pressed, the value p actual is taken over as p refer. So the test can also be
begun at a p refer of 153 mbar for example.
3.3.1 Leak test with compressed air (ZVSHK) 3.3.1 Leak test with compressed air (ZVSHK
Test pressure 150 hPa (150 mbar)
Program sequence ↑ ↓ (8):
1. Test \ Enter
2. Test with compressed air \ Enter
3. Leak test \ Enter
4. Check reference test pressure default (p refer) and change if necessary
(11) \ ↓
5. Check stabilisation default (t stabi) and change if necessary (11) \ ↓
6. Check test time default (t test) and change if necessary (11) \ ↓
7. Actual test pressure (p actual) is adjusted to reference test pressure (p refer)
\ Enter
8. Stabilisation/wait time (t stabi) running, actual test pressure (p actual) is
changed to reference test pressure (p refer) on expiring. The stabilisation/
wait time can be ended prematurely with Enter, the test time (t test) then
begins immediately (\ Esc = cancel).
9. Display screen: Reference test pressure (p refer), actual test pressure
(p actual), differential test pressure (p diff), test time (t test) \ Enter
10. Esc >> Start menu \ Memory Manager, data transfer >> 3.8
3.3.2 Load test with compressed air ≤ DN 50 (ZVSHK) 3.3.2 Load test with compressed air ≤ DN 50 (ZVSHK)
Test pressure 0.3 MPa (3 bar)
Program sequence ↑ ↓ (8):
1. Test \ Enter
2. Test with compressed air \ Enter
3. Load test ≤ DN 50 \ Enter
See leak test 4. to 10. for further procedure
3.3.3 Load test with compressed air > DN 50 (ZVSHK) 3.3.3 Load test with compressed air > DN 50 (ZVSHK)
Test pressure 0.1 MPa (1 bar)
Program sequence ↑ ↓ (8):
1. Test \ Enter
2. Test with compressed air \ Enter
3. Load test > DN 50 \ Enter
See leak test 4. to 10. for further procedure
3.4 Testing drinking water installations with water programs (REMS Multi-Push
SLW)
Section 6.1 of EN 806-4:2010 offers 3 test methods A, B, C for hydrostatic
pressure testing depending on the material and size of the installed pipes. The
test methods differ in different test sequences, pressures and times.
For Germany Germany, the 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), the following is
defi ned with regard to the test methods A, B, C for pressure testing with water
offered in section 6.1 of EN 806-4:2010: "For reasons of practicability on the building
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