WO2017148943A1

WO2017148943A1 - Water supply system

Info

Publication number: WO2017148943A1
Application number: PCT/EP2017/054637
Authority: WO
Inventors: Ulrich Petzolt; Timo Kirchhoff; Olaf Altepost; Michael Beermann; Dipl.-Ing. Martin Krabbe; Andrej Schreiner
Original assignee: Tece Gmbh; Gebr. Kemper Gmbh + Co.Kg Metallwerke
Priority date: 2016-02-29
Filing date: 2017-02-28
Publication date: 2017-09-08
Also published as: DE102016103547A1; CH713650B8; CH713650B1; AT522031A5; AT522031B1

Abstract

The invention relates to a water supply system comprising a cold-water line 20 with a cold-water supply point and a hot-water line 22 with a hot-water supply point. In order to prevent, in a simple manner, the risk of microbial growth, in particular Legionella, at the cold-water supply point, the cold-water line 20 is positioned below the hot-water line 22 and at least one hot-water spacer element is provided between the hot-water line 22 and the hot-water supply point.

Description

Water supply system

In general, the invention deals with the problem of heat transfer from warming pipe sections to cold pipe sections, in particular in

Drinking water pipes, and thus induced formation of microbiology, especially Legionella. The invention serves to avoid the heat transfer to and within removal valves. Warming pipes are referred to below as PWH (potable water hot) or PWH-C (potable water hot circulation) and cold pipes with PWC (potable water cold).

In particular, the invention relates to a

Water connection system comprising a to a

Cold water line (PWC) connectable cold water connection, one to a hot water line (PWH) connectable

Hot water connection, one to a removal fitting

connectable hot water fitting connection and a connectable to the sampling valve

Cold water fitting connection, where the

Hot water fitting connection and the

Cold water fittings connection are spaced from each other and define an imaginary connecting line between them.

State of the art

Microbiology in the water, so the occurrence of Microorganisms, such as coliforms, Escherichia coli, enterococci and especially legionella, poses a significant problem, especially for aerosol-forming organisms

Outlets in water drinking water systems dar.

Microbiology is particularly dangerous for immunosuppressed persons, ie sick and / or elderly people. These

However, microbiology is present in low concentrations in any natural water that has oxygen concentrations. The growth of microbiology is

temperature dependent and finds especially in Legionella between 30 ° C - 50 ° C with exponential

Growth speed instead.

Basically, the number of microorganisms in the

Drinking water at rising temperatures. The technical regulations for drinking water according to DIN 1988-200 and DIN EN 806-2 therefore require that the temperatures in the PWC be kept below 25 ° C, better below 20 ° C, and above 55 ° C in the PWH / PWH-C and 65 ° C.

In addition, stagnant water volumes must be avoided in accordance with this set of rules. This means that the water in the PWH, ie the hot water pipe should circulate as far as possible to the sampling point. The PWC installation should be operated as intended by sufficient water change and kept at a low temperature. To ensure a continuous flow and thus avoid stagnation in the drinking water system, the solution to avoid microbiology is the

In this procedure, the individual tapping points within a water supply system are connected in series with each other, in particular by using wall connecting elbows Input and output line, so-called "double-wall discs", instead of the usual T-piece installation with

simple wall slices. The previously described

Through grinding of PWH and PWH-C lines leads due to the high temperatures to a permanent heating of the connected to the hot water fitting connection valve from the PWH valve connection in the direction of the PWC valve connection as well as continue to heat the PWC line. The resulting temperatures of the drinking water in the removal fittings and connection area deviate from the normative specifications and represent an increased risk of contamination for microbiology. By heating the PWC connection, another

Heat transfer to the PWC instead, which in turn is the

Contamination risk for microbiology increased for PWC.

Finally, results from the looping of

Hot water pipes, the further problem of heating of adjacent run cold water pipes. This is also due to the fact that insulation is understood to be sufficient only as protection against heat loss, but not to protect a cold water pipe from being heated by an adjacent hot water pipe. Namely, if the cold water pipe is led close to the hot water pipe, this leads to undesirable heating of the cold water pipe above the critical temperature of 25 ° C, from which increase Legionella exponentially. Be the required

Minimum distances between insulated pipes of 125mm in a lightweight wall and 200 mm in a concrete wall or in screed, as well as 200 mm in the concrete floor not met, this leads to a transfer of microbiology problem from hot water to cold water. In other words: "Inadmissible warming promotes the growth of legionella in the heated cold water". There at Cold water pipes but neither circulation facilities are provided nor thermal disinfection are possible or feasible, the control of infestation with Legionella in a cold water pipe is much more difficult than in the hot water system.

In the development of the invention has also been shown that this aspired from a hygienic point of view

Circulation pipes of the hot water system lead directly to the wall connecting elbows of the fittings within the connected fittings to significant heat transfer, resulting in temperatures well above 30 ° C in the cold water pipes. This effect of warming up the cold water was already observed within a short time after using the valve. The heat transfer from the hot water circulation to the cold water pipe can be done in different ways. On the one hand via the valve, which is connected to both a cold and hot water pipe, on the other hand, by a heat transfer from the hot water to the cold water supply through the surrounding air in the shaft or in the pretext and

Finally, by fastening traverses or

Mounting rails in the wall. Such trusses, which are often made of metal, are regularly used to

Installation of cold and hot water connections used and thus simplify the problematic here

Heat transfer from warm to cold.

In summary, Legionella for planners and

Installers of drinking water systems is a significant problem that will gain in importance in the future. However, the solutions that have been taken so far have repeatedly led to their closure in prominent buildings (hotels) due to legionella, which corresponding claims for damages to the exporting companies entailed. Through the trodden approaches with constantly circulating hot water up to the

Although the bacterial contamination problems on the hot water side have largely been solved, new problems have been raised on the

Cold water side.

Technical problem (task)

Based on this prior art, the invention is therefore based on the object at least partially to avoid these disadvantages and in particular

to avoid adverse effects of heat transfer and thus the risk of contamination by microbiology,

especially to minimize legionella. invention

According to the invention prevents one from the upper PWH line to the hot water fitting connection

extending hot water spacer element heat transfer from the PWH system in the flow direction to the removal fitting. By this surprisingly simple concept is realized that the warm water in the PWH line is sufficiently separated from the hot water supply point, because in the

Hot water distance element which heats warm water according to heat level, so warmer water rises and colder

Water drops due to the higher density, so this hot water distance element as a thermal separation to

Prevention of microcirculation is used and thus the

Heat transfer between the circulating hot water and the wall plate or the valve significantly reduced. The hot water distance element according to the invention, which

is preferably formed as a plastic part, realized Thus, a thermal decoupling between the valve and the PWH line, which in any case is sufficient to effectively reduce inadvertent heating of the PWC line. Preferably, the PWH system is designed as a closed ring system, in which circulates the warm water, for example driven by a pump, whereas the cold water in the cold water supply line not in a

closed ring must be supplied. For the cold

Water is sufficient for the flow caused by opening a connected consumer, e.g. a toilet, a shower and the like occurs.

The hot water spacer is preferably so

designed that this forms no stagnation, but at the same time allows just such a small circulation in the hot water distance element that no relevant heat transfer caused by the circulating water

(Microcirculation).

The formation of the hot water spacer element has proven to be particularly effective as a plastic pipe, in particular as a 16 × 2.2 pipe (outer diameter of 16 mm and wall thickness of 2.2 mm), which in the installed position has a length of 100 mm from the center of the upper installation position

Hot water connection up to the middle of the hot water fitting connection located in the installation position below.

In the development of the invention has been shown that this effect according to the invention is particularly well with a hot water distancing element having an inner diameter (free cross-section dj _. ) Of 10 to 20 mm, in particular 11.6 mm, and a length of 30 to 150 mm, preferably 40 up to 130 mm, more preferably 50 to 10 mm, in particular 60 to 90 mm is achieved.

The preferred ratio of the length of the

Hot water distance element to its inner diameter is thus 8 to 12, preferably 9.05. For the formation of the hot water distance element, plastics have proven to be well suited to a

Have thermal conductivity of less than or equal to 0.5 watts per meter and Kelvin; Particularly good results were obtained with plastics having a thermal conductivity of less than or equal to 0.35 watts per meter and Kelvin.

A possible warming of the cold water pipe can be even better prevented by the fact that the

Cold water pipe is spaced from the cold water removal point via a cold water distance element, so that therefore the cold water and the hot water connection point are not attached to one and the same fastening traverse.

In this case, the lengths of the cold water and the hot water distance element then add, so that therefore the two spacer elements, ie the hot water and the

Cold water distance element about twice the length of the

Distance elements are spaced apart.

In the preferred embodiment, the hot water and cold water spacer elements have substantially the same

Dimensions on, in particular, these are 16x2.2

Plastic tube with a length of 100 mm from the center of the water connection formed to the center of the associated fitting connection.

However, the cold water distance element can also be designed substantially shorter than the hot water distance element, because it does not affect the function of this

Stratification by degree of heat to avoid the

Heat transfer from the PWH to the PWC line arrives via the faucet connected to the fittings connections or adjacent lines.

Preferably, the lengths add up from the

Cold water distance element and the hot water distance element, so that so the upper PWH and the lower PWC line by twice the length of the spacer elements from each other

are spaced. In the preferred embodiment, the length of the spacer elements is 30 to 150 mm, preferably 40 to 130 mm, more preferably 50-110 mm, in particular 60 to 90 mm.

To adapt to the given installation situation, e.g. in the wall below a vanity, are the

Valve terminals spaced from each other to about

the same height, preferably on a

horizontally extending connecting line.

So that standardized fittings can be used, the distance between the fittings connections is preferably between 150 and 200 mm, in particular 150 mm, in particular in the horizontal.

To optimize the required space, a

Outlet pipe or a passage for the preferably horizontal connecting line between the

Armaturenanschlüssen be arranged.

In the preferred embodiment, the water connections comprise at least one tee to which the PWH and / or PWC fittings provided with fittings can be attached, either detachably or non-detachably. Alternatively, these too include at least one threaded connection, to which the PWC and PWH lines are screwed, particularly preferably multi-threaded red brass.

Because of the better durability, the fittings connections are preferably designed as wall disks, in particular made of metal, preferably made of gunmetal. The water connections are preferably designed as a tee, either out of

Plastic or metal, then also made of gunmetal. Thus, therefore, essentially standard components for the construction of the Einbaubox be used.

With this configuration, a particularly simple installation can be realized, because this with a simple T-piece

Installation is feasible, so no elaborate

Installations with double wall panels and higher

Cable lengths are required. This is accompanied by the

Advantage of the reduced line lengths, ie a short line network. Although the consumers are also connected in series or in ring installations even in the preferred installation according to the invention, but the connection is always made laterally and not from below as before. This reduces the cable lengths and thus the

Water volume in cold and hot water pipes.

The water connection system can be composed of individual, to the respective installation situation individually adapted components or be designed as a prefabricated Einbaubox which the water connections, the

Fittings connections and at least that

Hot water spacer and other components in a housing to form a mounting box comprises. to

This can be simpler to install and / or maintain

Housing be formed openable and preferably comprises two separable interconnectable half shells, the one Make up the receiving space for the components of the water connection system. This housing can be mounted, for example, on a wall strip with which the installation box is distributed together as a mounting kit. In this case, the housing is preferably designed or

adapted that only the water and

Protect the fitting connections from the housing.

In a non-openable embodiment, the

Components of the installation box e.g. be foamed. The housing can also heat and / or

Sound insulation include, z. B. in the form of

Styrofoam elements or other foamed plastics.

In the preferred embodiment of the water connection system, most or all of the components of the

Water connection system made of plastic, so the

Water pipes, the connection elements, the spacer elements and, if possible, the water connection points, but often for stability reasons of metal

Consist of materials, preferably gunmetal. This

allows a particularly simple installation and maintenance, because the individual components only need to be pressed together.

In a preferred embodiment of the invention, optimized for installation in the wall or pretext, e.g. Under a washstand, the installation box includes a standard drain sheet, so that the installation box can thus be installed as a finished component in the wall and there must be connected only with angle valves and a drain siphon after overcutting. Such a solution is often because of space

problematic. Due to the crossing situation between the Sewer and drinking water pipes are very thick walls. The invention solves this problem. While the sewer pipe is guided vertically downwards, the water pipes preferably run horizontally above the sewer pipe. It is not necessary to cross the isolated drinking water pipes and sewers.

The Einbaubox preferably has a particularly small depth of slightly less than 75 mm, so that these

Particularly well in a wall or pretext can be installed, the frequent depths of 75 mm to 100 mm between a

Front of a building wall to back wall

exhibit. This is in particular by the described arrangement of Einbaubox above fitting with

horizontally running water pipe connections allows.

In an alternative embodiment, depending on

Installation situation and available wall depth, the wastewater connection also optional between the

Mounted valve fittings. In this case, an intersection of cold water pipe and sewer pipe is unavoidable, resulting in larger wall depths.

In the preferred embodiment, the housing, also referred to as "Einbaubox", thus comprises a total of four

Connections to T-piece fittings, two couplings each to the lower cold water tee fitting for connection to the cold water line and two couplings at the top

Hot water tee fitting for connecting the

Hot water pipe.

It is understood by those skilled in the art that the invention is not only suitable for washstands, but z. B. also for showers and other sanitary areas. When used in Showers either the arrangement itself or in the housing is fixed within the wall, z. B. With

Plasterboard, which are then tiled. In the

Fine installation will project from the wall

Water connection points then with a feed zarmatur

connected, z. B. a mixer. For showers, the distance between the water points is so

adapted according to the distance from such mixer taps. In this case, then the housing does not include a passage for a drain pipe.

Both the PWH and the PWC line are preferably designed as circulation lines.

Further features and advantages of the present invention will be clearly described with reference to the following description of preferred embodiments with reference to the accompanying drawings. In this regard, directional terminology such as "top," "bottom," "front," "back," "front," "rear," etc. is used with respect to the orientation of the described figure (s). Because components of embodiments in a number

different orientation, the directional terminology is illustrative and is in no way limiting. It is understood that other embodiments may be utilized and structural or logical changes may be made without departing from

To deviate scope of the present invention. The following detailed description is not in the

restrictive sense. In the context of this

Description the terms "connected",

"Connected" as well as "integrated" used to describe both a direct and indirect connection, a direct or indirect connection, and a direct or indirect integration. In the figures, identical or similar elements become identical

Provided reference numerals, as far as this is appropriate. The illustrations in the figures are essentially

scale. To illustrate details, however, certain areas may be shown exaggeratedly large for those skilled in the art. In addition, the drawings may be simplistically simplified and do not include every detail that may be present in the practice. Show it:

Figure 1 is a front view of a first embodiment

a trained as a Einbaubox

Water supply system installed in a wall under a washstand; FIG. 2 shows a longitudinal section of the installation box according to FIG. 1

or with removed front half shell;

Figure 3 is a side view of the Einbaubox according to Figure 1;

Figure 4 is a slightly enlarged, side cross-section along the line IV-IV of Figure 1; Figure 5 is a slightly enlarged, side cross-section along the line V-V of Figure 1;

Figure 6 is a front view of a second embodiment

a built-in box in a first installation situation for installation in for particularly confined space; FIG. 7 shows a front view of the installation box according to FIG. 6 with the front half shell removed;

Figure 8A is a slightly reduced cross section along the

Line AA according to FIG. 6; FIG. 8B shows a slightly reduced cross section along the line BB according to FIG. 6;

Figure 8C is a slightly reduced cross-section along the

Line C-C of Figure 6; FIG. 9 is a front view of the second embodiment of FIG

Einbaubox according to Figure 6 in a second installation situation;

Figure 9A is a reduced cross-section along the line

A-A according to FIG. 9; Figure 9B is a reduced cross-section along the line

B-B according to FIG. 9;

Figure 9C is a reduced cross-section along the line

C-C according to FIG. 9;

Figure 10 is a perspective exploded view of a third

Embodiment of a Einbaubox comprising

Threaded connections for connection to the drinking water pipes and a double wall plate for connection to the PWC line;

11 is a perspective exploded view of a fourth

Embodiment with threaded connections and with a longer hot water than

Cold water spacer; and

Figure 12 is a perspective exploded view of a fifth

Embodiment with threaded connections and equal hot water and cold water distance elements.

FIG. 1 shows the built-in box 2 made of foamed plastic parts, mounted on a wall strip 4 on a wall behind it and not below it illustrated washbasin with an inserted

Connector 6, the upper end in one

Sealing collar 8 ends in the sanitary box 2, in which the horizontal end of a drain pipe or a siphon of the washstand is used.

The Einbaubox 2 thus consists of a substantially square in the front view housing, consisting of two formed as plastic injection molded half shells 2a, 2b, the at a central, circumferential joining edge 2c itself

are mutually releasably connected to each other, so that the front half-shell 2b is removable from the rear 2a. At the upper right corner and at the opposite left lower corner, the

Einbaubox 2 each recesses, over which

Water supply lines 20, 22 are connected to the built-in box 2 and designed as T-piece fittings 10, 12 hot and cold water connections are connected. The lower T-piece in the figures is the cold water T-piece 10 and the upper T-piece fitting in the figures is the hot-water T-piece 12. According to the invention - the - lower - cold water pipe 20 input and output side on lower end with the cold water T-piece 10 and the - upper - hot water pipe 20 input and output side top side connected to the hot water tee 12, each with at least in the water connections horizontally extending water supply lines 20, 22nd

Essential to the invention is formed in the form of a plastic tube 14 and a stub

Hot water distance element, which thus forms a distance between the hot water pipe 22 and the hot water guided therein and in which the hygiene box. 2

recorded hot water tee 12 with the as Hot water wall plate 16 trained

Hot water connection point connects, on which front z. B. an unillustrated angle valve in a known manner to supply a washbasin faucet with hot water can be screwed. An equal-length plastic pipe 18 is provided between the also included in the sanitary box 2 cold water tee 10 and a cold water wall plate 18, so that the wall plates 16, 19 and

Water connection points within the sanitary box 2 approximately in the middle at the same height slightly above the

Sealing collar 8 are positioned. The hygiene box 2 is thus adapted for installation on the common

Waschtischinstallation which has the usual distances between the wall plates 16, 19, preferably about 150 mm. The connection of the T-piece fittings 10, 12 to the

Water pipes or water supply lines 20, 22 takes place z. B. by removing the front half-shell 2 b from the rear half-shell 2 a of the hygiene box 2 and the

Connecting the T-piece fittings 10, 12 with the

Water supply lines 20, 22, z. B. by means

Axialpressfittings, plug fittings or means

Thread transitions.

To reduce flow noise, the hygiene box 2 is insulated on the inside by means of an insulating material. The second illustrated in Figures 6 to 8

Embodiment differs from previous ones

Embodiments in that it is optimized for installation in a narrow space, so requires a particularly small depth in a wall or pretext with a distance of 75 mm from the front back wall to back pretext. This is achieved by the arrangement of the Einbaubox 24 above the L-shaped wastewater bend 26, whereby a Crossing the horizontally extending and not drawn water supply lines and the vertically downwardly extending sewage bend 26 is avoided.

Also in this embodiment, the upper hot water tee 28 is for connection to the hot water supply pipe via a vertically extending

Hot water spacer element 30 from the hot water wall angle 32 spaced to which the connection for a fitting

can be connected. The cold water wall angle 34, which is arranged on the right side in FIG. 6, is connected directly to the cold water tee 29 for connection to the cold water supply line (not shown), ie without an interposed switch

Cold water spacer. The housing of the mounting box 24 has an arcuate recess 38 at the lower end, with which this can be placed on the sewage bow 26.

This configuration ensures that the water pipes and the waste water bend 26 do not intersect.

FIG. 7 shows a front view of the installation box according to FIG. 6 with the front half shell 24b removed, that is to say open.

FIGS. 9 and 10 show another installation situation of the installation box 24 according to FIG. 6, in which the

Waste water bend 26 at least the lower cold water pipe (not shown) in installation position crosses. At this

Installation situation, the upper angle of the sewage bend 26 in the upper arc between the two legs for receiving the wall angle 32, 34 of the sanitary box 24 is arranged.

The housing 38, 40, 42 of all embodiments in the

Figures 10 - 12 are similarly constructed, consisting of two half-shells, one in the installed position rear half-shell 38a, 40a, 42a and one on this attachable front half-shell 38b, 40b, 42b, the

assembled the housing 38, 40, 42 form. The housings 38, 40, 42 are each mounted with their middle web 38c, 40c, 42c center web with or without traverse on a wall. Of the respective longitudinal axis defined by this central web 38c, 40c, 42c, a hot water web 38d, 40d, 42d extends transversely upwards at the left-hand end in the figures and a cold water web 38e, 40e, 42e transversely downward at the right-hand end in the figures in relation to the longitudinal axis of the agent.

In the embodiments in FIGS. 10 to 12, the water connections are each designed as threaded connections 44, 46, in which the water connection lines

Input and the output side horizontally to this

also designed as T-pieces threaded connections 44, 46 can be connected. Transversely extending to the longitudinal axis of the threaded connections 44, 46, extends in the housing 38, 40, 42 formed as a plastic tube 50th

Hot water distance element down to one

Hot water wall washer 52, the connecting piece in

Mounting position penetrates an opening in the front half-shell 38b, 40b, 42b.

In the embodiment according to FIG. 10, the

Cold water connection designed as a double wall plate 48, which realizes in a known manner a continuous circulation flow from the input to the output side. Also in this embodiment, the connectable to the PWH hot water wall plates 52 and connectable to the PWC double wall plate are arranged horizontally in the central web 38c on a plane in the housing 38 and their connecting pieces extend through corresponding openings in the front half-shell 38b for connection to the not illustrated fitting. However, the PWC connection comprises a double-walled disc 48, that is, transversely to the bottom

Horizontal is connected, whereas at the

Embodiments in Figures 11 and 12, the PWC shots carried horizontally extending.

The embodiments of FIGS. 11 and 12 differ from one another in that, in the embodiment according to FIG. 11, the cold water fitting connection designed as cold water wall 58 is formed integrally adjacent and forward transversely to the longitudinal axis of the threaded connection 46, whereas in the embodiment according to FIG cold water spacer

plastic tube 54 is arranged between the threaded connection 46 and the Kaltwasserwandschreibe 54, the length of the plastic pipe 50, so the

Hot water distance element corresponds. Consequently, the cold water leg of the housing 42 of the embodiment according to FIG. 12 is also designed to be somewhat longer than that of the housing 40 of the embodiment in FIG. 11. By means of the simple solution according to the invention of arranging the PWH or hot water line above the PWC or

Cold water pipe, spaced by the

Hot water spacer between the top

Hot water pipe and arranged underneath

Hot water connection point, thus becomes effective

unwanted heat transfer between

Hot water circulation pipe and hot water connection point significantly reduced. At the same time takes place by the circulating water in the hot water a desired microcirculation in the preferably vertically extending water spacer element, which for a constant exchange of water in the hot water element in the form ensures that a stratification is not significantly disturbed.

As far as no relevant heat transfer to the

Hot water fitting connection or the connected fitting takes place, the installation of the water connection system or the Einbaubox can also be done on a regular metal traverse without this is undesirable heated. Thus, the usual or existing tools and building materials can be used and no special components are required. However, preferably designed in the form of a plastic pipe hot water distance element forms the necessary thermal separation to avoid heating the connected valve. This is

According to the invention with a simple T-piece installation and thus quickly to be connected and serviced solution solved the problem of Legionella microbiology effectively.

The object of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual

Claims among each other. All information and features disclosed in the documents - including the summary - in particular the spatial design shown in the drawings, are claimed as essential to the invention, as far as they are individually or in combination

are new compared to the prior art

Applicant:

TECE GmbH, 48282 Emsdetten; Gebr. Kemper GmbH + Co. KG Metallwerke, 57462 Olpe

Water connection system

2 installation box

2a rear half shell

2b front half shell

4 traverse

6 connection piece

8 sealing collar

9 housing

9a rear half shell

9b front half shell

10 cold water tee

12 hot water tee

14 plastic pipe

16 hot water wall angle

18 plastic pipe

19 cold water wall angle

20 cold water pipe

22 hot water pipe 24 built-in box

24a rear half shell

24b front half shell

26 connecting piece

28 hot water tee

29 cold water tee

30 hot water distance element

32 hot water wall angle

34 cold water wall angle

36 recess

38 housing

38a rear half shell

38b front half shell

38c center bar

40 housing

40a rear half shell

40b front half shell

40c center bar

42 housing

42a rear half shell

42b front half shell

42c central pier

44 threaded connection

46 threaded connection

48 double wall pane

50 plastic tube

52 hot water wall pane

54 plastic pipe

56 cold water wall writing

58 cold water fittings connection

Claims

Applicant:

TECE GmbH, 48282 Emsdetten; Gebr. Kemper GmbH + Co. KG Metallwerke, 57462 Olpe

Water supply system

1. Water connection system comprising a to a

Cold water pipe (20) can be connected

Cold water connection and one to a hot water pipe (22) connectable hot water connection, one can be connected to a sampling valve

Hot water fitting connection and one to the

Removable fitting connectable

Cold water fitting connection, where the

Hot water fitting connection and the

Cold water fittings connection are spaced from each other and define an imaginary connecting line between them, characterized in that the

Hot water pipe (22) above the cold water pipe (20) is arranged, that is a

Hot water distance element (14; 30) between the

Hot water connection and the

Hot water fitting connection substantially vertical extending to the connection line and that the hot water spacer element (14; 30) comprises a plastic tube.

2. Water connection system according to claim 1, THEREFOR

MARKED that the distance from the

Hot water connection to the connecting line between 50 to 500 mm, in particular 100 to 400 mm, particularly preferably 150 to 300 mm.

3. Water connection system according to claim 2, THEREFOR

MARKED that the distance from the

Hot water connection to the connecting line between 100 to 120 mm, in particular 105 mm.

4. Water connection system according to one of the preceding

Claims, characterized by the fact that the

Hot water spacer is designed as a 16x2.2 mm plastic pipe and the length from the middle of the

Hot water supply to the middle of

Hot water fitting connection is approx. 100 mm.

5. Water connection system according to one of the preceding

Claims, characterized in that further comprises a cold water spacer element (30) between the

Cold water pipe (20) and the

Cold water fitting connection extends.

6. Water connection system according to claim 5, THEREFOR

CHARACTERIZED THAT the hot water spacer (14; 30) and the cold water spacer (18) are approximately the same dimensions.

7. Water connection system according to one of the preceding claims, characterized in that the hot water and / or the cold water connection a T-piece (10; 12; 28; 29).

8. Water connection system according to one of the preceding claims, characterized in that the hot water and / or cold water connection comprise a threaded connection.

9. Water connection system according to one of the preceding claims, characterized in that the

Hot water distance element (14; 30) has a plastic with a thermal conductivity of less than or equal to 0.5 W / m K, in particular less than or equal to 0.35 W / m K.

10. Water connection system according to one of the preceding claims, characterized in that the hot water and / or the cold water connection are designed to connect the water line (s) (20, 22) in the

Horizontal.

11. Water connection system according to one of the preceding claims, characterized in that it comprises a housing.

12. Water connection system according to claim 11, DADURCH

CHARACTERIZED that the housing is separable.

13. Water connection system according to claim 12, THEREFOR

CHARACTERIZED that the housing comprises two composable half-shells (2a, 2b, 24a, 24b) defining a receiving space.

14. Water connection system according to claim 11, THEREFOR

CHARACTERIZED that the housing is made in one piece.

15. Water connection system according to claim 11, THEREFOR FEATURES that the housing includes foam, especially PU foam.

16. Water connection system according to claims 11 to 15,

THAT CHARACTERIZES that the housing has a

Includes passage for a sewer.