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5. Enter water volume of the flushing section VA H
(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
During the program run, the REMS Multi-Push displays the consumed volume
of water on the screen among other things.
NOTICE
NOTICE
In order to feed in compressed air, water pressure of ≥ 0.2 bar must be applied
and a water quantity of ≥ 2 l must have flowed through the machine.
3.1.4 Program flush/desilt with the possibility to switch over the air supply
This program is suitable for flushing/desilting radiators and area heating systems.
The compressed air supply can be switched on with an excess pressure of 0.5
bar or switched off during the flushing process. The program starts flushing/
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
the arrow keys ↑ ↓ (8). The water pressure and the minimum flow velocity are
displayed on the screen (LCD) (Fig. 2 (6)) during flushing/desilting.
Program sequence ↑ ↓ (8):
1. Flush \ Enter
2. Flush \ Enter
3. Open the water supply. Flushing/desilting starts without air supply
4. Switch the compressed air on and off as required with the arrow keys ↑ ↓
(8) and wait a few seconds until the air supply has switched over. It is not
necessary to confirm the selection with Enter. The marking on the screen
(LCD) (6) shows the currently selected air supply.
5. To exit \ Enter, (\ Esc = cancel)
6. Display screen: Water pressure (p H
flushing time (t H
O), volume of used water (V H
2
7. Esc >> Start menu \ Memory Manager, data transfer >> 3.8
NOTICE
NOTICE
In order to be able to feed in compressed air, a water pressure of ≥ 0,2 bar must
be available and a water volume of ≥ 2 l must have flowed through the machine.
Before flushing/desilting, it is essential to assess whether the radiator and area
heating system to be flushed will withstand the water pressure during flushing/
desilting.
It can last up to one minute before the selected compressed air supply starts
when switching the air supply on or over.
3.2 Program Ingredients / Disinfection of drinking water installations
CAUTION
CAUTION
No drinking water may be be drawn off for consumers during disinfection
of drinking water installations!
Observe the specifications of the European standard EN 806-2:2010
"Technical Rules Worksheet DVGW W 557 (A) October 2012"
mation leaflet "Flushing, disinfection and commissioning of drinking water
installations"
.
15)
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, fill 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
CAUTION
CAUTION
The dye is not harmful to the health but very intensive and is very difficult to
remove from the skin or clothing. Therefore pour the dye into the bottle carefully.
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.
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
filling 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.
O (0-999 l) (11) \ Enter
2
O), flushing time (t H
O), used water
2
2
O), minimum flow velocity (v H
O),
2
2
O) \ Enter
2
10), 13)
and the infor-
14)
O
.
2
2
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 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 flushed 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 flushing drinking water pipes.
3.3 Testing drinking water installations with compressed air program (REMS
Multi-Push SL/SLW)
WARNING
WARNING
The following applies for Germany: Observe the information leaflet "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)
national regulations to avoid harm to persons, property and the environment.
Observe maximum test pressures of 0.3 MPa/3 bar/43.5 psi for load and leak
testing of gas pipes.
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 influence 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 defines 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 leaflet "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 leaflet 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 file.
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)
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
eng
, "3.1 General" additionally to the
16)
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