eng
section by section depending on the size of the installation and the lay of the
section, DN
section, in inches
section, in l/min
Minimum number of DN 15 (½") tapping
points to be opened fully or a corresponding
cross-sectional area
depending on the greatest ra
0.5 m/s) (EN 806-4:2010, lines in italics added, limiting to DN 50). Two or more
The manual actuation o
"Flushing, Disinfection and Commissioning of Drinking Water Installations"
(August 2014) of the German Central Association for Sanitary, Heating and Air
Conditioning (ZVSHK) takes place automatically in REMS Multi-Push. The
compressed air is fed with an excess pressure of 0.5 bar above the measured
water pressure. The compressed air supply lasts 5 s, the stagnation phase
(without compressed air) lasts 2 s.
1. Flush \ Enter
2. Flush EN 806-4 \ Enter
3. Intermittent compressed air \ Enter
4.
(see Fig. 6)
Disinfection and Commissioning of Drinking Water Installations" of the
German Central Association for Sanitary, Heating and Air Conditioning)
depends on the pipe length and should not drop below 15 s per metre. The
(If the defaults v H
O and VS H
2
the cause, repeat the process)
7. Display screen: Water pressure (p H
O), volume of used water (V H
2
\ Enter
8. Esc >> Start menu \ Memory Manager, data transfer >> 3.8
NOTICE
NOTICE
3.1.3
air
The compressed air is fed continuously with an excess pressure of 0.5 bar
above the measured water pressure in this program. The compressed air pulses
air" are omitted here. Although these considerably improve the cleaning effect,
they subject the pipes to greater stress. If there are any reservations about
with water (without air supply) by a jolt-free turbulence due to the constantly
fed compressed air.
REMS Multi-Push displays the used water volume on the screen among other
things.
1. Flush \ Enter
2. Flush EN 806-4 \ Enter
4. Check default max. DN according to table 2 and change if necessary
(see Fig. 6)
6. Open the water supply. To exit \ Enter, (\ Esc = cancel)
7. Display screen: Water pressure (p H
volume (V H
O) \ Enter
2
8. Esc >> Start menu \ Memory Manager, data transfer >> 3.8
NOTICE
NOTICE
26
25
32
40
1"
1¼"
1½"
15
25
38
1
2
3
and minimum number of tapping points
eater rated widths.
O (0-999 l) (11) \ Enter
2
O = 0,5 m/s, the
2
hing time are reached \ Enter
2
O are not reached: \ Esc = cancel, clarify
2
2
2
with intermittent compressed
O (0-999 l) (11) \ Enter
2
O), used water
2
2
The compressed air supply can be switched on with an excess pressure of 0.5
desilting without compressed air. The compressed air can be switched on or
off intermittently or the constant air supply switched on and off as required with
50
2"
1. Flush \ Enter
2. Flush \ Enter
3. Open the water supply. Flushing/desilting starts without air supply
59
(8). The marking on the screen (LCD) (6) shows the currently selected air
4
supply.
5. To exit \ Enter, (\ Esc = cancel)
6. Display screen: Water pressure (p H
7. Esc >> Start menu \ Memory Manager, data transfer >> 3.8
NOTICE
NOTICE
be av
desilting.
It can last up to one minute before the selected compressed air supply starts
when switching the air supply on or over.
CAUTION
CAUTION
of drinking water installations!
The European standard EN 806-4:2010 prescribes the following for the
"Selection of disinfectants":
by a responsible person or authority."
"All chemicals that are used for the disinfection of drinking water installations
must meet the requirements for chemicals for water treatment which are spec-
national standards."
"Disinfectants must be used and applied in agreement with the appropriate EC
directives and all local or national regulations."
"Transport, storage, handling and use of all these disinfectants can be dangerous,
therefore health and safety requirements must be strictly observed."
O),
remaining concentration at the end of the contact time is below the manufac-
2
O)
turer's recommendation, the whole disinfection process may have to be repeated
2
until the remaining concentration after the corresponding contact time has been
reached. After successful disinfection, the system must be drained immediately
to the instructions/recommendations of the disinfectant or until the disinfectant
can no longer be traced or is below the level permitted by national regulations.
ological examination. If the bacteriological examination of the sample/samples
"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."
The following must be observed for Germany
additives, that are used for the disinfection of drinking water installations must
European or German standards (DIN EN 806-4)." "Every installation disinfec-
tion stresses the materials and components of the drinking water installation
so that the drinking water installation can be damaged."
"If the chemical disinfection is carried out section by section, the line sections
to be treated must be shut off from the rest of the drinking water installation.
Opening the tapping points of the section of the installation to be disinfected
one after another ensures that the disinfectant gets into the whole section." "At
the end of the exposure time, a minimum concentration dependent on the initial
disinfectant concentration and exposure time necessary to assure disinfection
tapping point of the individual lines farthest away from the dosing point."
"At the end of the disinfection of drinking water installations, the used disinfec-
tion solution must be cleared so that no damage to the environment is caused.
The oxidising effect of the disinfectant can be rendered ineffective by adding
reducers. The pH value must also be observed and corrected if necessary."
An application concentration for the dosing solution for hydrogen peroxide H
of 150 mg H
O
/ l and an exposure time of 24 hours are recommended.
2
2
2
O), volume of used water (V H
O) \ Enter
2
2
Germany: "All chemicals including the
eng
O),
2
O
2
2