REMS Multi-Push SL Instrucciones De Servicio página 27

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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
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."
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
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
26
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
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 testing with water can be conducted when
● 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.
WARNING
The hydro-pneumatic water pump installed additionally in the REMS Multi-Push
SLW for these tests is fed by the built-in compressor of the REMS Multi-Push.
The hydro-pneumatic pump generates a water pressure of max. 1.8 MPa/
18 bar/261 psi. Before conducting one of the tests with water A, B, C, it must
be assessed whether the installation to be tested will withstand the preset/
selected test pressure "p refer".
CAUTION CAUTION
Before disconnecting the high-pressure hose (26) from the pressure test with
water drain (25) or from the drinking water installation, make sure that the
pressure has been totally relieved.
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
The controller ends the control process to set the selected test pressure in tests
with water at a tolerance of 0 to +0.3 bar. This means that the control is ended,
for example, when setting p refer = 11 bar at a value p actual between 11.0
and 11.3 bar. This tolerance is safe because, in the pressure test with water,
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 11.3 bar for example.
3.4.1 Pressure test with water, test method A (EN 806-4:2010, 6.1.3.2) 3.4.1 Pressure test with water, test method A (EN 806-4:2010, 6.1.3.2)
Program sequence ↑ ↓ (8):
1. Test \ Enter
2. Test with water \ Enter
3. Test with water A \ 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) 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.
3.4.2 Pressure test with water, test method Δ>10K (B/1): 3.4.2 Pressure test with water,
compensation (EN 806-4:2010, 6.1.3.3) compensation (EN 806-4:2010,
Program sequence ↑ ↓ (8):
1. Test \ Enter
2. Test with water \ Enter
3. Test with water B \ Enter
st method Δ>10K (B/1): Temperature Temperature
6.1.3.3)
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