How to connect a dishwasher to the drain. Installation and connection of the dishwasher to the water supply, sewerage and electrical networks
In addition to buying a reliable one, it is necessary to provide for its proper connection. All work must be carried out in such a way that the equipment will serve for many years, without leaks and other troubles, because in addition to complex automation and electromechanical filling, such a device, from a certain perspective, is also a plumbing fixture. It goes without saying that all the rules are contained in the instructions, but there is almost no indication of what should be done before purchasing equipment and various practical nuances are not sufficiently covered.
Regardless of installation type ( , ) you should try to bring the device as close as possible to the area where the kitchen sink is located. This will help connect to communications without the complicated operation of cutting into a pipe. Here it will be possible to make do with units and connections that ensure the drainage and supply of water. It is also not recommended to lengthen the standard hose, as this can lead to rapid wear of the sump pump.
However, you can sweat and cut standard hoses into sewer and water pipes. This helps to install equipment where you like and conveniently.
But, the matter must be approached by a specialist with experience.
Do not forget that a power supply line with the correct cross-section must be connected to the installation site. A separate socket with a mandatory grounding circuit is installed. Connection via extension cords is not permitted.
Before starting work, it is advisable to prepare a place for installation - free space or. The base (table, floor, cabinet) must be such as to ensure a stable position of the device. To avoid backlash and increased vibration, a strict horizontal is required, which is controlled by the level. In general, see the instructions; manufacturers always describe the requirements for the installation site and a description of this stage of work. The correct mounting hardware is included.
What is required for water connection
Firstly, the work requires a minimum set of tools. First of all, these are plumbing wrenches, a screwdriver, a tool for cutting pipes, a hammer drill with a set of 15, 22, 50 mm feather drills. The correct placement of the machine is checked by a level (a short one of 40-50 cm is sufficient).
To supply water, a copper or PVC pipe and fittings are required. Connections are selected according to the type of pipe. If you have enough length, you can use the flexible hose included in the kit (no pipes or fittings are required).
And the last thing that may come in handy is a tee or water pipe fitting with a locking ball valve. Using a valve, the machine can be disconnected from the general water supply system at any time. To process joints, use FUM tape or Unipack type plumbing paste.
I note that the easiest to install are. Here, in principle, a stationary leash to communications is not required. The water supply hose is connected to the mixer spout using special adapters. The drain is lowered and fixed in the sink bowl. However, this technique is very inconvenient to use and the best solution would be stationary models.
How to connect the inlet hose
The inlet hose can be connected to the machine in two ways. However, regardless of this, there are a few rules to remember.
These include:
- During installation, only new water pipes and hoses are used;
- Water supply hoses cannot be extended using threaded connections.
Option one - connecting a hose with a leak protection system (Aqua-stop)
If the home dishwasher you purchased is equipped with, it is unacceptable to disconnect the factory inlet hose, since this is where the protective solenoid valves are provided. Exactly At the first hint of a drop in pressure (a sign of a leak), they immediately shut off the water supply.
The housing is quite noticeable in size and is located on the side of the hose where the connection to the water pipe should be. When installing, you should consider how this block will fit and whether there will be a place for it. Next, the water pipe is connected from the distribution manifold to the dishwasher (more details below). A shut-off valve must be installed and the supplied inlet hose must be connected..
Option two – if there is no Aqua-stop system
If the equipment does not have a leakage protection system, and the length of the standard hose is not enough, they act in a different way. The hose included in the kit is replaced with a new pipe route. To do this, unscrew the short hose using an adjustable wrench. A new fitting is installed at the dishwasher inlet.
- a shut-off valve is installed at the water supply outlet;
- A new pipe is attached to the dishwasher;
- It is better to make the connection through a collet connection;
- the thread should be wound with flax and sealing paste;
- Use an adjustable wrench to tighten the collet nut. There is no need to be particularly zealous or over-tighten. If you overtighten the collet connection, the O-ring may crack;
- the second end of the inlet pipe is mounted with a pre-installed shut-off valve.
If copper pipes are used, all bends must be neat. For sharp right angles, it is better to use special springs that are inserted inside the pipe and do not allow them to break. In this case, the rotation angles are formed with a small bend radius.
If any pipes need to be trimmed, internal burrs are always removed with a round file or countersink. Use special scissors for cutting; it is better to avoid using a hacksaw. The pipe is selected so that it can withstand a temperature of 65 degrees and a pressure of 1-10 kg/cm2.
If the standard hose is the right length
The simplest solution is when the standard hoses are long enough to connect them to a pipe with a flexible connection going to the mixer. All you need is a through tee, an adjustable wrench and a sealing winder.
Regarding tees, we can say the following: the thread on the water supply pipe should be ½ inch, on the opposite edge - also ½ inch (for reconnecting the flexible mixer hose). The side outlet should have a ¾" threaded part.. Such fittings are an ideal solution for connecting dishwashers and washing machines.
If you decide to connect via a tee, proceed in a similar way:
- the common cold water supply valve is closed;
- the water tap opens to relieve excess pressure in the home water supply;
- Unscrew the nut of the mixer flexible connection with a wrench;
- release the threaded part of the pipe. If there are remnants of the old winding, they are removed;
- in the direction of tightening the nut, a new winding is wound (linen tow + paste or FUM tape);
- a tee is screwed onto the machined thread. The side with the tap should be in a convenient position for connecting the dishwasher hose;
- We install a flexible mixer connection in a new location. If required, the O-ring seals are replaced;
- on the tee, the tap is switched to the closed state, after which the general water supply is opened;
- Lastly, a plastic nut with its own sealing ring is screwed onto the machine hose. Everything is done by hand, no tools are needed.
Known nuances
Among some masters There is an opinion that equipment can be connected to a hot water supply system. The rationality of this step is explained by lower energy consumption. In fact, you can find models that support this option. They are simultaneously supplied to both cold and hot water supplies, which must be indicated in the passport. If the manufacturer does not allow such a step, it is not worth the risk. Such manipulations lead to a complete crash of the equipment’s software.
However, even if the manufacturer allows you to connect the device to the hot water supply, do not take risks; stick to one connection - to cold water.
This is due to the following factors:
- the quality of hot water can hardly be called ideal;
- the temperature often exceeds the required heating level. This may cause the device's software settings to malfunction;
- Whether in the city or in the countryside, interruptions in the supply of hot water are not uncommon, especially in the summer. It is much easier to resort to cold water supply;
- the savings are not as obvious as they seem. Released today. This is energy saving of class A and higher, rational use of water, so cold water remains the most rational solution.
On the issue of tees. The use of fittings is convenient if one additional water intake point is connected. However, practical experience shows that the space under the kitchen sink is usually more crowded. In addition to the dishwasher, water purification filters, a washing machine, a boiler, etc. can be installed here.
If the load is high, the tee circuit is ineffective - it forms a bulky fitting design- adapters, which is flavored with a web of hoses and connections. Therefore, it is better to install a small collector with 4-5 outputs. It is connected to a water pipe, from where switching is carried out to all water points.
Collectors are easy to purchase ready-made. Material – polypropylene or metal (choose depending on the type of pipe). Additionally, for installation you will need an adapter with a tap.. The collector is fixed to the wall with dowels or clamps.
Drain connection
The machine is connected to the sewerage system in two ways.
The first way to organize a drain
If it is possible to install a dishwasher close to a kitchen sink, the outlet can be connected to the siphon.
This will require reinstallation. The siphon is replaced with a similar one, but with additional drain pipes (1 or 2 inlets).
Second way
A good solution is to organize a drain directly into a sewer outlet pipe. It must be remembered that the drain must be located at a certain height from the level of the dishwasher itself - usually no lower than 40-50 cm. This way, dirty sewer water will not be sucked into the system.
If the general level of the sewage system in the room is located below 40 cm, the outlet hose at the inlet should be bent like a reverse U. However, in order not to be tricky with bends, I advise you to use an anti-siphon valve. It is immediately designed in the form of a loop and solves all the problems of correct placement.
More difficult to perform and Installing a special wall siphon for a dishwasher will be expensive.. This type of connection will meet all requirements and is convenient to use. The design combines all valve devices, which ensures safety. Installation is also quite simple. The wide pipe is fixed to the vertical outlet of the sewer pipe. The dishwasher drain hose is connected to the front one.
Finally, you can apply another interesting technological solution. There are manufacturers who equip their machines with special “anti-siphon” valves. They create the necessary air gap, which will eliminate negative aspects from the sewer system. Their design is quite interesting. The valve is cut into the back panel of the kitchen sink or into the countertop of the kitchen sink.
The place is chosen so that it does not interfere with everyday life, and a decorative cap is placed on top.
When connecting the outlets from the washing machine and dishwasher to the drainage system, check valves are installed on two drains.
Underwater rocks
When connecting the machine to the sewer, one interesting point must be taken into account. If you insert the drain hose into the pipe and apply a seal, the connection will become virtually airtight. In this situation, this is more of a minus than a plus. The fact is that the pressure in the sewer pipes must be equal to atmospheric pressure. This way, there are no areas of vacuum.
Otherwise, excessive tightness can lead to a “siphon effect”. In essence, this is a massive discharge of water in one of the areas, causing a spontaneous current in others adjacent to it. This is how the pipe begins to suck water from the dishwasher, which leads to software errors, imbalance of the automation, and failure. Another option cannot be ruled out - waste water getting back into the car.
On the other side, insufficient sealing leads to leaks and the spread of unpleasant odors. It is important to consider this balance to avoid unnecessary headaches.
How to reinstall the dishwasher
When the equipment is connected to the sewer and water supply, the position of the dishwasher is leveled using a building level. If the model is built-in, it is screwed to the furniture profile using special fasteners. All that remains is to carry out a test run and check the joints for leaks.
What does incorrect installation lead to?
If the dishwasher is not connected correctly, there is a high probability of accidents and leaks.
To avoid the most common mistakes, proceed as follows:
- all drain and inlet communications must be placed evenly, without kinks or proximity to heating elements;
- It is better to cover flexible standard hoses with plastic boxes or false panels to prevent even accidental deformations;
- poorly tightened clamps, missing or incorrectly installed seals are a direct path to leaks.
conclusions
Before you start connecting yourself, I advise you to adequately assess your abilities and capabilities. If you still have doubts about your own abilities, it is rational to invite a professional craftsman or service worker. I note that any violation of installation standards leads to loss of the manufacturer’s warranty.
Buying a dishwasher makes life easier, especially for those who take care of all household chores. With the advent of this necessary unit, all “duties” and “kitchen chores” are canceled, you have time for other, more interesting things. At current utility rates, the device pays for itself very quickly. If you have thought through everything and made a purchase decision, all that remains is to figure out how to properly install and connect the dishwasher to the electrical network, water supply and sewerage. Knowing all the subtleties and nuances of the process, you can save on the services of a specialist.
Before proceeding directly to the installation of the device, you should choose the optimal location for its placement and prepare the necessary tools.
Where is the best place to place the device?
Modern kitchen sets, as a rule, have a niche for a dishwasher with standard fasteners. There are also many good models with non-standard types of fastenings. The furniture passport, as a rule, indicates the type of fastening and what brands it is suitable for. If this data is not in the passport, you need to measure the mount and check whether it is compatible with the device. If not, the mounting strips can be easily rearranged using a Phillips screwdriver. It’s worse if the width of the niche is smaller than the size of the dishwasher, then you’ll have to look for another model. Another convenient option is to place it on a table, but this solution is only suitable for a compact portable model.
A dishwasher is a profitable purchase that saves your time
Required tools and materials
To connect the device yourself, you need to stock up on tools, water fittings and consumables. The only tools you will need are pliers and a screwdriver, and the consumables will be vinyl or cotton tape. Electrical tape is used to wrap metal threaded parts to prevent them from being scratched when tightened with pliers. If you have a small (#1) adjustable wrench, no insulation is required. You will also need FUM waterproofing tape.
For water shut-off and water tap fittings you need to purchase:
- Drain siphon with one or two fittings. If there is an automatic washing machine in the house, one fitting is enough. If there is no car, the second fitting is closed with a plug or rubber plug. In the future you will be able to connect a washing machine to it.
- Bronze, brass or metal-plastic tee with 3/4 inch thread. Silumin water fittings tend to disintegrate without warning.
- A filter for rough water purification, exactly the same as that installed in front of the water meter.
- Ball valve made of bronze, brass or metal-plastic, but in no case made of silumin.
- When installing the dishwasher at a large distance from the sink, you will need a connecting pipe for the henka, since the length of the standard henka may not be enough.
You can connect a dishwasher and washing machine to a siphon with two fittings
The process of connecting a dishwasher step by step
The easiest way to connect is a small portable model. This is done by connecting a hose to a cold water tap. Simply lower the drainage hose into the sink. After use, the device can be stored in a closet. This is convenient if you have limited space in your kitchen.
If you have a small kitchen, consider a portable, easy-to-connect model that can be mounted on the countertop
To connect a stationary device, you cannot do without the knowledge and skills of a specialist. Installing a dishwasher yourself is also possible, but only if you are completely confident in your abilities and follow the instructions and our advice.
Connecting a dishwasher takes place in several stages:
- a socket is installed and power is supplied to it;
- separate water supply is organized;
- drainage of water into the sewer system is arranged;
- performance check is carried out.
Note! The dishwasher connection diagram and the sequence of installation steps can be changed based on the technical readiness of the room and the features of the specific appliance model.
Power supply
Connection to power supply is possible only through a Euro socket with reliable grounding. Replacing a Euro plug with a “Soviet” one will entail loss of warranty, and is far from safe even when the device is turned off. The simplest and most correct solution to providing it with electricity would be to connect it to an outlet specially prepared for repairs. If there is no outlet, additional effort will be required.
To connect to the power supply you will need a European socket and grounding.
Safety is an important condition, so installation of the dishwasher must be carried out according to the following rules:
- The dishwasher is a powerful unit with high energy consumption. Therefore, when connecting it, it is not recommended to use extension cords and tees, which can cause breakdown or fire of the device.
- You cannot use an electric stove socket to connect the dishwasher.
- To install the socket in a convenient place, a wire with a diameter of at least 2 mm is supplied from the electrical panel. A 16 A safety switch is installed in the electrical panel, which automatically turns off the power supply if the load in the network exceeds the maximum permissible.
- When connecting yourself, you should remember that a three-core cable is used to ensure grounding.
Very important! Do not ground electrical appliances to gas, water or heating pipes. Is it dangerous!
For safe operation of the device, the connection to the power supply must be made in compliance with all rules and regulations.
If you are a resident of an apartment building, then you will not need grounding, but protective grounding, in which the grounding wire is connected to a solid neutral. This work cannot be trusted to amateurs; it is better to contact a DEZ electrician. If detected by the energy service, you will have to answer for “self-made” zeroing.
Supplying water to the device
To connect water to the dishwasher, you need:
- turn off the water;
- disconnect the cold mixer connection from the pipe;
- remove old waterproofing;
- connect a tee to the pipe;
- connect the mixer to the tee;
- observing the sequence, attach the filter, ball valve and henka;
- insulate threaded joints with foam tape, winding it in 10-15 layers (if the tape gets knocked down and comes out, rewind it in the other direction);
- close the ball valve.
Good to know! Additional protection such as Aqua Stop or Aqua-Control will save you from having to close the tap after washing dishes.
A filter is installed on the water supply outlet to prevent sand and rust from entering the machine. If the hoses included with the device are not long enough, they can be “extended”. To save energy, some devices have a hot water connection.
Good to know! In our conditions, connecting the dishwasher to hot water is undesirable. This is explained by the fact that substances are added to hot water to protect pipes from rust. They can damage the car.
To ensure proper connection to the water supply and sewerage system, you should carefully study the instructions included with the device.
Organization of drainage
Key points for connecting the device to the sewer:
- The simplest way to organize a drain is to use a siphon, which is equipped with an additional outlet and a valve that protects against the penetration of water from the sewer and sink.
- The placement of the drain hose also helps to ensure protection against water from entering the sewer:
- the hose coming from the device must be fixed to furniture or a wall 60 cm above the entrance to the sewer network.
- then the hose is bent so that the water from the dishwasher flows into the siphon on its own.
- Before connecting the drain, you need to make sure that the hose is long enough. Otherwise, it can be doubled, but not more. If the hose is too long, the load on the pump increases and may affect its performance.
Checking the functionality of the device after connection
Once the dishwasher is installed and connected, a test is performed. To do this, a dry test is carried out. Checked:
- water filling speed;
- heating water;
- drying mode operation.
Note! The test is carried out according to the instructions without utensils, but with detergents and restoring salt. The connections of hoses and pipes are carefully checked for leaks.
Installing a dishwasher yourself is a rather complex process that requires maximum concentration and attention to detail. If this is your first experience, treat the installation with the utmost responsibility or call a specialist. Before calling, check the make and serial number of the model so that you can provide this information to the technician. This will help him prepare for work.
Video: installing and connecting the dishwasher
Dishwashers are installed in the kitchen, not far from the sink. This is no accident. In this case, connecting the dishwasher is the simplest - the sewerage system and water supply are located nearby, and the socket for a permanent connection still needs to be installed separately.
The peculiarity of installing a dishwasher is that it must be positioned perfectly level. The maximum permissible deviation from the horizontal is 2°. If this requirement is not met, the dishes may not be washed well enough. Therefore, the first step after unpacking is to install it in place and level it. For this purpose, the design includes height-adjustable legs. We take a building level, place it on the car, and ensure that it stands level relative to the horizontal. Then we check the verticals, if everything was done correctly, and there should be no deviations here.
Power Requirements
Dishwashers, even economical ones, consume a considerable amount of electricity. For example:
- for BOSCH SPS 40E12 (class A), maximum power consumption 2.4 kW;
- CANDY CDCF 6 07 (class A) consumption - 1.3 kW.
- SIEMENS SR24E205 (class A) requires a maximum of 2.4 kW;
- ELECTROLUX ESF 9420 LOW - can consume 2.1 kW.
- WHIRLPOOL ADP 7570 IX - power consumption 2.1 kW.
With high power consumption, one of the conditions for normal operation is a separate power supply line with an installed circuit breaker and RCD. A separate line will also reduce the impact of power surges on the electronics that control the operation of the unit. They are felt whenever the refrigerator, freezer or microwave is turned on/off. The control board reacts very poorly and keeps jumping, and replacing it (almost no one repairs it, they just replace it) costs a lot of money. If you want the equipment to work for a long time and without problems, draw a separate line from the shield.
As you understand, the average power of a dishwasher is 2.1-2.4 kW. First, select the circuit breaker. It must be selected based on current, but the characteristics rarely contain this value, so you have to calculate the current based on power. For example, the power of a dishwasher is 2.4 kW. We find the maximum current: 2400 W / 220 V = 10.9 A.
Circuit breakers come in the following ratings - 6 A, 10 A, 16 A, 20 A (there are also more powerful ones, but they are definitely not needed for this equipment). For this example, a 16 A circuit breaker is required. It is better not to take a 10 A circuit breaker - when turned on at full power it will be knocked out. Therefore, we take the nearest larger value, and this is 16 A.
From the input of the circuit breaker, the phase is supplied to the RCD. It protects against leaks due to insulation breakdown, and will also work if someone touches live parts. It is also selected by current, but it must be a step higher than the automatic one. For this example, this is 25 A (RCDs come in 10 A, 16 A, 25 A, 32 A). The second parameter by which this type of protection is selected is leakage current. For lines to which only one device is connected, the leakage current is 10 mA. Both of these devices are installed in .
The next parameter that you need to decide on is the cross-section of the cable cores. Copper wires have recently been used for wiring, as they are easier to work with. For devices with a power of up to 4.1 kW, a cross-section of 1.5 square meters is sufficient. mm (more is possible, less is not possible).
Now about what kind of sheath the cable should be in. It depends on the material of the walls along which the power supply line will be laid:
One more point: dishwasher sockets must be grounded. This is a mandatory requirement to maintain the warranty. Also, when choosing, pay attention to the voltage for which it is designed. For branded copies this parameter is written on the back side. If there is no such inscription, this is cheap Chinese consumer goods, and it’s better not to take risks.
Where and how to remove the drain
The next step is connecting the dishwasher to the sewer. The drain hose is located on the rear wall of the housing; it is about 1.5-2 meters long. If necessary, it can be extended to a similar one of the same diameter, but the total length cannot be more than 5 meters (see the operating instructions for details). This distance can be pumped by pumps that operate to remove water.
The best option is to have a separate sewer outlet. Then everything is simple, a rubber coupling is inserted into the pipe, ensuring a tight fixation of the corrugation, and the end of the drain hose is tucked into it. If it is closed with a plug, remove it. But this option is rather an exception. More often the dishwasher is connected through the sink siphon or through the outlet into the sink.
If the sewer outlet is cast iron, there are special rubber couplings for a sealed transition to plastic. You will need to know the diameters of your outlet and plastic tee. Accordingly, the adapter is installed in a cast iron pipe. You just need to put it there without any additional funds. Insert a plastic fork into the coupling. A sink is usually connected to the vertically directed outlet, and a dishwasher is connected to the one at an angle.
For special siphons for connecting a dishwasher, the outlet is made so that the drain hose can be pulled over it. For reliability, it can be tightened with a clamp.
The connection of the dishwasher to the sewer should be such as to avoid the formation of loops and creases, even when everything is pushed into place. At the same time, the corrugation should not be allowed to approach from the side - there should be a slight upward bend. This eliminates the possibility of drainage from the siphon or tee getting into the machine.
To fix the corrugated hose in a given position, there are special plastic couplings. They are put on the corrugation from below and hold it securely.
Water connection
The dishwasher is connected to the water supply using a standard hose, which is also located on the back of the housing. It is easy to recognize by its rather large nozzle. This is an overflow blocker. It is needed for correct operation and it is not recommended to remove it.
Now about what kind of water to connect the dishwasher to. You can connect to a hot one only in one case - if your unit supports such a function (indicated in the description) and you do not have a DHW meter. In all other cases, it is better to fill the machine with cold water. The main motive for connecting to a hot water supply is to save electricity. If the water is hot, there is no need to heat it. This is true, but this solution has disadvantages:
You can connect to the water supply at any point where there is a detachable connection. For example, in the place where a flexible hose is connected to a sink. They unscrew it, install a tee, then a ball valve (or a tee with a ball valve at once). On the part that connects the dishwasher to the tap, on the second outlet there is a flexible hose to the sink mixer.
Check before starting
Before pushing the machine into place, check the tightness of the connections. To do this, you need to open the water supply (turn the tap to which the dishwasher inlet hose is connected). If there are no leaks anywhere, you can push it in.
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After delivering the new item home, the owners are faced with the need to solve the problem of how to connect the dishwasher to the sewer. There are two ways to do it: invite a specialist or try to do it yourself. Of course, professionals will do this work faster and more reliably.
The main steps for connecting a dishwasher to the sewer system
Connecting the dishwasher to the sewer and other utility networks occurs in several stages:- install a separate outlet and connect the power supply line to it;
- install a separate water intake;
- provide drainage of used water into the sewer system;
- carry out a test run of the dishwasher.
Connect to various networks
Stage one - power supply. The easiest way to connect a dishwasher to power is to plug it into an outlet, which must be specially installed when carrying out renovation work in an apartment or house.Independent connection of a dishwasher, such as in the photo, requires compliance with certain safety measures, including:
- When connecting, the use of tees and extension cords should be avoided, since the power consumed by the device is quite high, which can lead to equipment breakdown and even cause a fire;
- It is prohibited to connect the dishwasher to an outlet that is intended for operating an electric stove;
- To install the socket in the required location, you need to connect a wire with a diameter of at least 2 millimeters from the electrical panel. In this case, a protective switch with a power of 16 A is installed in the electrical panel. This device, if the maximum permissible load in the network is exceeded, automatically turns off the power supply;
- When doing work on connecting the dishwasher yourself, you should not forget that actual grounding can be ensured if the cable going to the outlet is three-wire. Experts recommend not grounding electrical appliances to gas, water supply or heating pipes, as this is extremely dangerous.
The connection is made as follows:
- a filter is installed on the outlet that serves to supply water to the dishwasher to retain rust and sand;
- when the device does not have special protection against accidental leaks, when connecting the dishwasher to a water source, you need to install a shut-off valve in front of the filter. This device will not allow water from the water supply to get into the dishwasher (read: " "). Otherwise, the room where the household appliances for washing dishes are installed may flood. To avoid the need to close the shut-off valve after each use of the dishwasher, install additional protection such as Aqua Stop or Aqua-Control or a similar device;
- if the hoses included with the dishwasher are not long enough to connect the unit to the water supply, they can be extended (read also: " ");
- Some models provide the ability to connect equipment to hot water. This function allows you to save energy spent on heating water during operation of the unit. According to experts, in multi-storey buildings with centralized hot water supply, connecting a dishwasher to it is undesirable. The fact is that such water contains special additives that prevent rust from depositing in pipes, which negatively affects the operation of dishwashers.
Connecting the dishwasher to the sewer can be done in several ways:
Option one. The simplest way is considered to be draining waste water through a siphon, which is equipped with a special valve and an additional outlet. The valve prevents water from entering the dishwasher from the sink or sewer system.
Option two. Additional protection when connecting the dishwasher to the sewer system against waste water entering the unit is the correct placement of the drain hose. The hose extending from the equipment must be secured to kitchen furniture or a wall at a height of no more than 60 centimeters from the point of its entry into the sewer system. Then the hose is bent so that the water flows by gravity into the siphon.
Option three. Before connecting the dishwasher to the sewer, you should make sure that the standard hose length (1.5 meters) is sufficient. If necessary, its length can be increased, but not more than 2 times. The reason for the limitation is that it may adversely affect the pump's performance if there is additional load.
Checking the operation of the dishwasher
After the connection diagram of the dishwasher to the sewer has been implemented, a blank test of its performance is carried out.In this case, you need to check:
- speed of filling the unit with water;
- heating the incoming water;
- functioning of the drying mode for washed dishes.
When the independent connection of the dishwasher is completed in accordance with all the manufacturer’s installation recommendations, the kitchen furniture is placed in place, and the new product is secured with a special panel.
Connecting a dishwasher to the water supply and sewerage system yourself is quite simple and can be done by any of us; in addition, each manufacturer provides detailed installation instructions, which greatly facilitates the connection work. She describes in detail the progress of the work step by step. But there are some nuances that should be followed. This will prevent mistakes that could lead to product failure. This will be discussed below, as well as what mistakes should be avoided when connecting a dishwasher.
The main steps for installing a dishwasher to the water supply and drainage system are as follows:
- model selection;
- preparatory work;
- installation of a power outlet;
- connection to water supply;
- sewer drain installations;
- final check of product functionality.
First you need to purchase the device. The product is selected based on your own needs and capabilities. You shouldn’t listen to the advice of others – everyone’s needs are different. For a family of 3 people, for example, a narrow machine is suitable, but for a large number of people, full-size models are selected. In addition to the dimensions of the product, you need to be guided by the type - built-in or free-standing.
When purchasing a dishwasher, you need to check for integrity
Before you begin connecting, you should carefully inspect the product for defects. It could have been damaged during transportation - such a device cannot be installed. If the machine is working properly, then you can begin preparatory work and make connections.
To connect you need the following tools:
- Screwdriver Set;
- adjustable wrench;
- insulating tape.
Required Tools
You also need to purchase materials:
- siphon - this part must be equipped with a fitting;
- waterproofing tape;
- metal-plastic or brass tee;
- ball valve (like a tee - made of metal-plastic or brass).
It is advisable to purchase parts made of brass or metal-plastic. It is better to avoid silumin products - they can fall apart during use.
Diagram of connecting the dishwasher to networks
You should pay attention to the waterproofing tape. It must be thin and high quality. Due to this, it will be easily wrapped into the thread. You should not replace it with insulating tape - it is not intended for this purpose and will leak over time.
Installing a power outlet
If the outlet is already installed, then this step can be skipped. And after connecting the water supply and drainage system, simply insert the plug into the socket and use the device. If electrical wiring to the machine is not provided in advance, then you will need:
- calculate the current consumption based on the power of the device;
- Based on the obtained current value, the required cable cross-section is selected. It is advisable to connect a separate cable to the dishwasher from the electrical panel;
Preparing a place for an outlet
- a protective circuit breaker with a rating of 16 A is installed on the panel. If the load in the network exceeds the permissible limit, the circuit breaker will trip and the machine will turn off;
- When the wiring is closed, a groove is made in the wall and the socket is installed at the required height. The depth of the groove must be sufficient for placing the cable in it and further sealing it with putty. The wall is then cleaned with sandpaper and prepared for finishing work;
Installing an outlet
- with open wiring, the cable is laid in a box and fixed on the wall. Then the socket is installed;
- sockets are selected as waterproof type with grounding;
- The sockets must be grounded. For this, a cable with 3 cores is used.
Block with wires for connecting to the electrical network
If difficulties arise at this stage, it is better to seek help from an electrician. You should not try to do the job if you are not confident in your actions.
The water supply is connected to cold water. It is advisable to install a filter on the water, which will reduce its hardness. This will significantly extend the life of the device.
If you do not pay due attention to the quality of the water, the machine will quickly fail. The check valve in the device will break. This will cause even cleanly washed dishes to smell unpleasant.
How to properly connect a dishwasher
To prevent the check valve from malfunctioning, water filters are installed. In addition, the water supply is connected only to cold water. It is not advisable to connect it to hot water, because the quality of such water does not meet the necessary requirements.
Stages of connecting the water supply:
- turning off the water - usually the tap is located in the kitchen;
- disconnecting the hose from the mixer;
- a tee is screwed onto the pipe and connected to the mixer;
- A ball valve is connected to the tee (in the middle branch). The latter has an outlet to which a hose from the dishwasher is already connected;
- a filter is installed on the outlet to retain debris.
Water supply connection
The machine kit may include a hose that is too short. It will not be enough to connect to the pipe to the mixer. In this case, it is recommended to purchase a longer hose. You should not try to extend the old one - this will not be a very reliable solution.
Connecting the dishwasher to the water supply
Sewer drain installation
One of the common ways to independently connect a device to a drainage system is to organize a drain through a siphon. This procedure should be carried out carefully and adhere to all installation recommendations.
Parts and assembly of a special siphon for a dishwasher
The water drain must be equipped with a check valve and an additional outlet. This will prevent water from the sewer from entering the device.
Step-by-step connection instructions:
- the hose that extends from the machine is mounted on the wall or on a cabinet. It must be located at least 60 cm above the entrance of the drain into the sewer;
- the fixed hose is tilted at the required angle to create a gravity flow of water from the device. The bend must be made so that water from the sink does not enter the dishwasher hose;
- The drain circuit is connected to the siphon under the sink.
If there is already a siphon without outlets under the sink, which you don’t want to change, then you can use another method. To do this, the drain hose of the machine is connected to the outlet of the sewer pipe. After this, the joint is tightly wrapped with electrical tape. In this case, you should bend the hose so that water from the sewer does not get into it.
Connecting the siphon to the sewer pipe and to the pipe coming from the machine
Before connecting the drain, you need to check the length of the hose again. It should be enough. If it is short, then it can be extended. But you should not overdo it - excess length can negatively affect the operation of the pump.
Connecting the dishwasher hose to the sink siphon
Special bend of the drain pipe
Functionality check
When the device is connected to communications, its suitability for use is checked. To do this, the machine must stand tightly in the designated place. Connect to the power supply and set to normal washing mode. Starting is done at idle speed. In this case, the following must be absent:
- leaks;
- extraneous noise;
- shaking and moving the dishwasher;
- slow water filling speed;
- slow water heating.
If all these points are missing, then the machine is installed correctly. After this, all the furniture is put in place and a closing panel is put on the device. The first test run is carried out without dishes. In this case, a special detergent is used.
Level check
Some nuances for installing built-in dishwashers
Freestanding machines are much easier to connect to. But the built-in ones will require more work. They come with an additional wood panel. It has a decorative function and comes without holes for attaching to the device - you need to make them yourself.
Proper execution of all communications
Technology of preparatory work for built-in equipment:
- Use a drill to carefully drill holes for fastening. You need to make them so deep that you don’t make a through hole. To do this, it is advisable to follow the instructions that come with each device model;
- use a screwdriver to screw the hinges to the door. All fasteners are usually included in the kit;
- The door springs are adjusted. Due to this, the door does not open or close arbitrarily in any position. Each spring is equipped with a special mechanism that is adjustable. As a rule, a special nut is tightened in this case;
- providing vapor barrier.
Installing a built-in dishwasher
Ensuring a vapor barrier for a dishwasher should be understood in more detail. The reliability of the device depends on this.
Vapor barrier for kitchen furniture
Some manufacturers of built-in dishwashers supply their products with special material that insulates its walls. Due to this, the efficiency of the device increases. This approach allows us to reduce the vibration that occurs during operation.
For self-vapor barrier, a special film is used. It has vapor barrier properties and is glued to the furniture around the car. There is no need to use conventional film, which does not allow air to pass through. This will cause condensation to form on the walls of the machine, which is unacceptable. It is better to use a special material that allows air to pass through very slowly.
Important Features
In order to reliably connect the device, you must:
- install a water filter. Due to this, debris and rust from the water supply will not get into the machine, which negatively affect its operation;
- Do not connect the device to hot water supply. Hot water is usually of worse quality than cold water. Mechanical impurities that it contains will negatively affect work;
- Do not connect the machine to the boiler. There will be no savings from this - the water heater will still turn on periodically to heat the water. And residents will have to use cold tap water while the machine is running;
- use a check valve when connecting the sewerage system. This will protect against sewage being sucked into the machine;
- when connecting the drain hose to the drainage system, the water drainage circuit is bent so that water from the sink does not enter the machine;
- carefully check the tightness of the connected parts;
- It is advisable to purchase taps from bronze. This material is more durable than plastic;
- Avoid using extension cords to connect the device to power. The machine is a fairly powerful device, so such a connection can lead to a fire.
Dishwasher installation diagram
These simple recommendations will help you avoid common mistakes when connecting a dishwasher to water supply and sewerage. When installing, you must follow the instructions that came with the device. You should check the reliability and tightness of all connected parts several times. If difficulties arise, it is better to contact specialists than to fix the breakdown later.