REMS Multi-Push S Betriebsanleitung Seite 24

eng
Attention: The user is solely responsible for transferred or newly entered
test criteria (test sequences, pressures and times) or defaults in the
individual programs and the conclusions from the tests. Especially, the
user must decide whether a prescribed stabilisation/wit time is ended
and must confirm this by \Enter.
The respective national safety provisions, rules and regulations valid for
the application site must be considered and observed.
Electronic memory
The electronic memory of REMS Multi-Push holds 40 files (logs). A soon as a
program has been selected from the Start menu and the selected data have
been confirmed with Enter, a new file no. is created automatically even if the
program is then aborted e.g. with Esc. If the 40th memory location is occupied,
the message "Last file no. available". After completing this process, all files
should be copied to a USB stick via the USB port (Fig. 2 (33)). The oldest file
no. in the memory is then overwritten when further files are saved.
Screen display (must be released by Enter):
000425 Consecutive file no. 000425
19.08.2013 10:13
Date 19.08.2013 Time 10:13 (creation of a new file no.)
Files 40/40
Files 40/40 (a max. of 40 files are saved)
Last file no.
Last file no.
available
available
3.1 Programs flush EN 806-4 drinking water installations, program flush/desilt
radiators and area heating systems
The REMS Multi-Push can be used for performing the flushing processes "flush
with water", "flush with water-air mixture with intermittent pressure" and "flush
with water-air mixture with constant compressed air".
3.1.1 Program flush EN 806-4 with water (without air supply)
Specifications for flushing with water are defined in EN 806-4:2010, and for
Germany additionally in accordance with the Technical Rules Worksheet DVGW
W 557 (A) October 2012 of the DVGW German Gas and Water Association and
the information leaflet "Flushing, disinfection and commissioning of drinking water
installations" (August 2014) of the Central Association for Sanitary, Heating, Air
Conditioning (ZVSHK), Germany.
The drinking water used for flushing must be filtered and must be of perfect
drinking water quality. Filters must hold back particles ≥ 150 µm (use REMS
fine filter with filter cartridge 90 µm, Art. No. 115609). The system must be
flushed section for section depending on the size of the installation and the
arrangement and lay of the pipes. Flushing must be start on the bottom floor
of the building and continue upwards in lines, within a line floor by floor, i.e.
from the nearest to the furthest line and floor. The minimum flow velocity when
flushing the installation must be 2 m/s and the water in the system must be
replaced at least 20 times during flushing.
Within the floor and single lines, at least as many tapping points as listed in the
following table as a recommended value for a flushing section will be fully
opened for at least 5 minutes floor by floor.
Greatest rated width of the pipe in the
flushed section, DN
Greatest rated width of the pipe in the flushed
section, in inches
Minimum number of tapping points to be
opened DN 15 (½")
Table 1: Recommended value for the minimum number of tapping points to be
opened related to the greatest rated width of the distribution line" (single tapping
rate at least 10 l/20 s) (Information leaflet "Flushing, disinfection and commis-
sioning of drinking water installations" (August 2014) of the German Central
Association for Sanitary, Heating and Air Conditioning, lines in italics added,
limiting to DN 50). Two or more REMS Multi-Push can be connected in parallel
to flush greater rated widths.
Program sequence ↑ ↓ (8):
1. Flush \ Enter
2. Flush EN 806-4 \ Enter
3. without compressed air \ Enter
4. Check default max. DN according to table 1 and change if necessary (11) \ ↓
5. Enter water volume of the flushing section VA H
Fig. 6)
6. Open the water supply. The values flash as long as the minimum flow
velocity v H O = 2 m/s and the water change n H
2
reached. On reaching the values \ Enter
(If the defaults v H O and n H
2
cause, repeat the process)
7. Display screen: Water pressure (p H
flushing time (t H O), water change (n H
2
\ Enter
8. Esc >> Start menu \ Memory Manager, data transfer >> 3.8
During the program run, the REMS Multi-Push displays the achieved flow
velocity and the achieved water change on the screen among other things.
24
1), 4)
1), 4)
25 32 40
1" 1¼" 1½"
2 4 6
O (0-999 l) \ Enter (see
2
O = 20 have not been
2
O are not reached: \ Esc = cancel, clarify the
2
O), minimum flow velocity (v H
2
O), volume of used water (V H
2
3.1.2 Program flush EN 806-4 with water-air mixture with intermittent compressed
air
The cleaning effect by flushing can be reinforced by adding compressed air.
Specifications for flushing with water are defined in EN 806-4:2010 and in the
information leaflet "Flushing, disinfection and commissioning of drinking water
installations" (August 2014) of the Central Association for Sanitary, Heating,
Air Conditioning (ZVSHK), Germany.
The drinking water used for flushing must be filtrated whereby particles ≥ 150
µm must be held back and the water must be perfectly fit for drinking (use
REMS fine filter with filter cartridge 90 µm, Art. No. 115609). "The pipe system
can be flushed under pressure with a drinking water/air mixture intermittently
with a minimum flow velocity in every pipe section of 0.5 m/s. A certain minimum
number of tap fittings must be opened for this. If the minimum volume flow is not
reached with full filling of the distribution pipe in a section of the pipe system to
be flushed, a storage tank and a pump must be used for flushing." "The system
must be flushed section by section depending on the size of the installation and
the lay of the pipes. No flushing section may exceed a pipe section length of 100
m."
Greatest rated width of the pipe in the flushed
section, DN
Greatest rated width of the pipe in the flushed
section, in inches
Minimum volume flow with fully filled pipe
section, in l/min
Minimum number of DN 15 (½") tapping
points to be opened fully or a corresponding
cross-sectional area
Table 2: Recommended minimum flow and minimum number of tapping points
depending on the greatest rated diameter of the pipe in the flushed section
which must be opened for the flushing process (for a minimum flow velocity of
0.5 m/s) (EN 806-4:2010, lines in italics added, limiting to DN 50). Two or more
REMS Multi-Push can be connected in parallel to flush greater rated widths.
The manual actuation of the setting fittings for the supply of intermittent
compressed air described in EN 806-4:2010 and in the information leaflet
"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.
Program sequence ↑ ↓ (8):
1. Flush \ Enter
2. Flush EN 806-4 \ Enter
3. Intermittent compressed air \ Enter
4. Check default max. DN according to table 2 and change if necessary (11) \ ↓
5. Enter water volume of the flushing section VA H
(see Fig. 6)
6. Open the water supply. If the minimum flow velocity v H
50
minimum volume flow VS H
The flushing time (according to information leaflet T 84-2004 "Flushing,
Disinfection and Commissioning of Drinking Water Installations" of the
2"
German Central Association for Sanitary, Heating and Air Conditioning)
depends on the pipe length and should not drop below 15 s per metre. The
8
flushing time must be at least 2 minutes per tapping point.
(If the defaults v H
the cause, repeat the process)
7. Display screen: Water pressure (p H
flushing time (t H
2
\ Enter
8. Esc >> Start menu \ Memory Manager, data transfer >> 3.8
During the program run, the REMS Multi-Push displays the achieved flow
velocity and the achieved water change 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.
3.1.3 Program flush EN 806-4 with water-air mixture with constant compressed 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 in the
program 3.1.2 flushing with water/air mixture with intermittent compressed air"
are omitted here. Although these considerably improve the cleaning effect, they
subject the pipes to greater stress. If there are any reservations about the strength
of the pipes to be flushed, this program at least achieves an improvement of the
cleaning effect in comparison with program 3.1.1 flushing with water (without air
O),
supply) by a jolt-free turbulence due to the constantly fed compressed air.
2
O)
Program sequence ↑ ↓ (8):
2
1. Flush \ Enter
2. Flush EN 806-4 \ Enter
3. Continuous air flow \ Enter
4. Check default max. DN according to table 2 and change if necessary
(11) \ ↓
25
1"
15
1
O (0-999 l) (11) \ Enter
2
O and the flushing time are reached \ Enter
2
O and VS H O are not reached: \ Esc = cancel, clarify
2 2
O), minimum flow velocity (v H
2
O), volume of used water (V H O), volume flow (VS H
2
eng
32 40 50
1¼" 1½" 2"
25 38 59
2 3 4
O = 0,5 m/s, the
2
O),
2
O)
2