Today, the popularity of dishwashers (hereinafter also referred to as dishwashers, PMM) is growing: more and more people are installing them in their kitchens. But not all owners know how to connect a dishwasher to communications.
The new dishwasher saves owners from manually washing dishes
Of course, you can call a specialist who, for a fee, will connect the new equipment to the electrical network, water supply and sewerage. But owners who have a minimum set of tools and certain skills can connect the dishwasher to the water supply and sewer system themselves. The connection is carried out in several stages, including preparatory stages. Let's take a closer look at them.
Water consumption and noise
Full-size models can accommodate a large number of dishes, including large pots and baking trays, wire racks and even skewers. This takes up to 20 liters of water. Inexpensive compact dishwashers do not have such wide capabilities.
But at the same time, they consume less water per cycle - 7-9 liters. In general, we can say that more expensive equipment is more economical in terms of resource consumption. Expert opinion I work in the field of repairing household appliances.
Extensive experience in restoring washing machines and dishwashers. Of course, the noisy operation of the dishwasher creates uncomfortable conditions in the kitchen.
Therefore, when choosing a model, this indicator must also be taken into account.
For example, a volume level of 45 dB corresponds to a person whispering.
Drying
We could talk for hours about how a dishwasher works; we decided that one time is enough. Finally, let's talk about drying. The following types are distinguished:
- Turbo.
- Condensation
In the first case, the process resembles what happens inside an LG or Samsung washing machine. A fan is available to circulate hot air through the cooking chamber. The evaporated liquid is thrown into the kitchen. The method is fast and energy-consuming.
Today, most dishwashers are equipped with condensation drying, in which the moisture evaporates itself, falls as dew on the walls of the working chamber, and flows to the drainage pump. The pump pumps slowly until it sees what to pump.
We have information that some dishwashers have built-in dryers with a heat exchanger, advertising does not respond to rumors, we suggest not to bother your head with unnecessary information. The operating time of the dishwasher is displayed by a special indicator; the time is up for today! See you.
The table knows everything
There is a certain consumption of detergent and electricity, established experimentally and recommended by the manufacturer, depending on the installed (programmed) dishwashing program.
This information is included in the table. 1. Table 1. Dependence between the type of program, water and electricity consumption Water and electricity consumption in different cases Intensive wash 70º C AUTO mode 55…65º C Economical Eco mode 50º C Gentle wash 40º C Quick wash 45º C Pre-wash Program duration, min 109 95-145 Electricity consumption, kW/h 1.35 0.95-1.3 0.8 0.65 0.65 0.1 Water consumption in liters (without Aqua-Stop system) 20 11-18 13 14 10 4 Water consumption in liters (with Aqua-Stop solenoid valve) 17 no no 11 no no Despite the apparent complexity of the description, all these sequential steps can be performed by any zealous owner - in order to bring pleasure from using the dishwasher to his loved ones.
Table 1. Relationship between program type, water and electricity consumption Water and electricity consumption in different cases Intensive wash 70º C AUTO mode 55…65º C Economical Eco mode 50º C Gentle wash 40º C Quick wash 45º C Pre-wash Program duration, min 109 95 -145 Electricity consumption, kW/h 1.35 0.95-1.3 0.8 0.65 0.65 0.1 Water consumption in liters (without Aqua-Stop system) 20 11-18 13 14 10 4 Consumption water in liters (with Aqua-Stop solenoid valve) 17 no no 11 no no Despite the apparent complexity of the description, all these sequential steps can be performed by any zealous owner - in order to give pleasure from operating the dishwasher to his loved ones.
Service Features
Servicing a dishwasher connected to hot water has some special features.
First of all, these features are associated with the specifics of hot water supply systems, which always contain much more various debris and mechanical particles.
So filters should be replaced somewhat more often than with a standard cold water connection.
It is not recommended to operate the device in abnormal modes, since the use of hot water already significantly reduces the service life of the components. And if the connection was not provided for in the product passport, then arbitrariness may even lead to the cancellation of the warranty.
Advantages and disadvantages
Various customer reviews indicate that it is not recommended to connect to a hot water supply. This is due to the following disadvantages of such a scheme:
- High consumption of hot water will cause high costs. Heating inside the device itself will cost less money.
- The composition may contain a large number of different impurities, which will cause rapid wear of the structure.
- In some cases, the medium is supplied at high temperature. It can have a negative impact on the condition of various elements of the device.
What water pressure is needed for a washing machine?
The water supply to the automatic washing machine must be carried out under a pressure that is not lower than the value specified in the technical documentation. The SMA developers decided that quickly filling the tank is a prerequisite for productive washing.
Europe and Japan have their own standards of living, which have no place for problems with water supply.
Russia is not limited to megacities, and somewhere in the outback people are not even aware of water supply standards.
A lack of pressure does not always result in a refusal to work; sometimes, the SMA starts up, but all processes go slowly: the tank takes a long time to fill, the powder is poorly washed off, and the quality of the wash decreases. Let's find out what pressure is needed for an automatic washing machine, depending on its brand:
- SMA from Zanussi, Electrolux, LG, Samsung and Daewoo - 0.3 bar. There are models with intake valves rated at 0.4 bar. The work depends a lot on the software.
- Bosch and Miele generally require 0.5 bar.
- Kuppersbusch - 0.8–0.9 bar. There are models operating at 0.5 bar.
- Ariston, Beko, AEG, Indesit, Candy and Whirlpool - 0.4 bar. Many “Indesites” work at lower values.
We recommend reading: School control over the use of nasvay
In rural water supply systems, the pressure is 0.1 bar or even less.
Connection to sewerage
The last step before setting up and test running the dishwasher is connecting to the drainage system. To do this, the siphon located under the sink will have to be replaced if it does not have a free fitting (branch). If you are going to connect the washing machine, you will need a siphon with two branches.
Siphon with two outlets, one of which is already connected to the PMM drain hose (the second is free and plugged)
The drain hose must be tightly attached to the fitting with a clamp, otherwise it may be torn off by the pressure of the liquid. It’s not for nothing that the fitting through which the drain hose is connected to the siphon looks like an inverted Latin letter V (see photo). This form prevents gases from the sewer from entering the house. For any connection to the drainage, the hose must have such a bend.
A special mounting clip is attached with a self-tapping screw to the wall to fix the bend of the drain hose on the way to the sewer
In conclusion, I would like to note that it is necessary to fix the dishwasher in the furniture opening only after test activation. Therefore, having connected the device to communications, do not rush to push it into a niche - the first launch is ahead. It will show whether the work was completed correctly.
If you can’t handle connecting the machine yourself, call the company where you bought the product and call a specialist
Clogged filters
A common reason why water accumulates at the bottom of a dishwasher is a clogged filter, so first we check the various cleaning systems.
If there are multiple food residues on the dishes, the filters become clogged quite quickly and need to be cleaned.
If you have a Bosch car, then you are in luck and there will be no big problems when cleaning the filter system. The filter housing is located at the bottom of the machine and is very easy to remove. Then clean it under running water and replace it. Fill the bottom with 2-3 glasses of water and turn on the sump pump - the water goes away, which means the problem has been fixed.
Fill the bottom with 2-3 glasses of water and turn on the sump pump - the water goes away, which means the problem has been fixed. Checking the filter It is located at the rear of the unit and connects the drainage system to the sewer system.
When it is crushed, the water will not drain, since it basically has nowhere to go. We disconnect the machine from the network, tilt it away from the wall, visually inspect the hose, and eliminate the detected malfunction.
There are cases of hose clogging, when small debris clogs it from the inside during long-term use, so water does not leave the machine.
Disconnect the hose from the sewer system and lower it into the prepared bucket. After turning on the dishwasher to drain, water should come out of it under pressure - this means that the blockage is located at the place where the hose is connected to the sewer.
If the pressure is weak, then look for a plug inside the hose and clean it. Dishwasher drain hose The system is checked in the same way as a hose: there is pressure - everything works, a weak stream of water - it needs to be cleaned. It’s more difficult with the pump - on some machines it is located in a hard-to-reach place, and only specialists can dismantle it.
In a Bosch dishwasher, the pump is located in a convenient location, and dismantling is possible on your own. We check the pump for clogging and clean it, then we check the operation of the internal impeller, for this we use a pencil.
All work must be carried out with the utmost care so as not to damage the impeller and not injure your hands with small fragments from dishes, which may cause clogging. Dishwasher circulation pump The pump mechanism is the same as on a washing machine:
- power supply from a standard network with a voltage of 220 V.
- the cross-shaped impeller pushes out water due to strong rotation;
- magnetic rotor;
- asynchronous motor with two coils;
Then we install everything back and check whether the pump can pump out water; if so, then the repair is complete.
The problem can be much more serious in the case where there is still water at the bottom of the machine - you can’t do it without a specialist.
Inlet hose, leakage protection
An ignorant person believes: the inlet hose does not contain interesting details. The answer to the question why the dishwasher does not work often lies here. A sea of interesting technologies was used at the junction with the riser. Leak protection. Have you heard that in dishwashers the option is full or partial:
- With complete protection against leaks, the housing pan is supplemented with a sensor, in the simplest case a float type, which detects the presence of water. This is detected and an electrical signal is sent. At the end of the hose we see another sensor-valve, which is responsible for detecting and localizing leaks in the tract between the riser and the body.
- In case of partial protection there is a float valve in the pan. The hose is unprotected.
Now more details. Let's start with the body. The entrance is decorated with a shut-off valve. If the pan sensor detects the presence of water, a special signal is sent to stop the intake. The remaining liquid is drained by the drainage pump into the sewer system. The operation cycle stops and an error message appears frequently.
When a hose is protected from leaks, pressure plays a role. If a drop in value at the inlet is detected, the valve located at the end of the inlet hose closes. It’s electric, so there are wires inside the hose to control the leakage protection subsystem. It is not written anywhere whether a dishwasher can distinguish between a drop of water in the riser and a leak, but we believe that reputable devices can. The electronics must measure the pressure difference between the hose inlet and outlet. At the slightest discrepancy, it’s time to sound the alarm.
The speculation is confirmed by advertising statements from dishwasher manufacturers, which claim that the electronic leakage protection subsystem is more sensitive. Let's explain! You don’t need to have phenomenal sensitivity to notice a drop in riser pressure. Therefore, it is about difference. Minor hose leaks will be detected. An external protection system will not give such a result today. Aquaguard's external sensors will detect the flood as time passes. The electronics of an expensive dishwasher respond instantly.
The hose is designed for three-quarter inch threads; be careful not to over-tighten the shutoff valve area. 10 Nm is enough.
How to choose a dishwasher for your cottage
You have already realized that a manual dishwasher is a complete farce, and autonomous operation is inconvenient for the user. A portable machine is suitable for camping enthusiasts, but for a summer cottage, less spartan conditions and high quality washing are needed.
Any PMM can be connected to water - to do this, you need to supply water under a pressure of 0.3-1 MPa. In principle, any dishwasher model is suitable - be it large or compact. You need to filter the water, pour it into a suitable container - a barrel or tank - and then provide the connection.
You can also choose a model with a water tank, but the essence does not change.
Can it be connected to hot water supply?
There are PMM models designed for connection to hot water supply networks. This feature should be clearly noted in the user manual.
There are also machines that can connect to both lines at once (DHW and cold water). They are called hybrid.
Such machines independently mix flows from different lines to obtain the desired water temperature. This is an economical and convenient way of working, but it also has a lot of disadvantages.
For example, more hoses will be required and additional connection points will appear, increasing the risk of leaks. In addition, the temperature of the hot water in the line is unstable, which creates an unwanted load on the electronics of the machine.
It is also necessary to take into account that the quality of hot water is much worse than cold water. DHW lines contain a large amount of suspended matter and small particles. They clog filters and form limescale deposits on machine parts, shortening their service life.
To find out whether it is possible to connect a dishwasher to hot water, read this article.
What are the dangers of low blood pressure?
It is known that in order to be able to use a water supply normally, the water pressure at its outlet must be in the range of 1-10 atm.
Too low pressure (low pressure) leads to the fact that the water flows in a thin stream, and it is impossible to wash yourself comfortably, let alone take a bath. In addition, many household appliances connected to the water supply also begin to go on strike: they do not turn on, the washing machine and dishwasher stop working, etc.
In addition, many household appliances connected to the water supply also begin to go on strike: they do not turn on, the washing machine and dishwasher stop working, etc.
d. For all these devices there are requirements for minimum operating water pressure. Approximate recommended values of water pressure for normal operation of household appliances and equipment Type of equipment Minimum water pressure, atm Washing machine 0.5–0.9 Dishwasher 0.5–1.5 Instantaneous water heater 0.1–0.3 Reverse osmosis filters 1 .5–3.5 Minimum pressure requirements may vary for different models and manufacturers, so check the technical specifications before purchasing if the pressure in the water supply is not okay.
ShutterStock
Grundfos UPA (Grundfos) pumps are used in open systems and are mounted directly into the water supply pipe.
Leroy Merlin Circulation pump Vortex HZ 401 25/40 (RUB 3,560).
Completing the installation
When the communications are connected, we attach a steam protection on the underside of the tabletop: a metal or plastic plate or glue a film - depending on what is included in the kit. In the desktop version, for example, nothing is provided, so we make it ourselves from scrap materials. Next, we connect the dishwasher to the water supply, sewerage, and electricity. Then we “push” the equipment into place.
Horizontal alignment is required. This stage should be taken seriously; the quality of the wash and the duration of operation depend on the quality of the installation. For this purpose, threaded legs are provided. For built-in models, the front ones are freely accessible, the back is usually one - with an adjusting screw, also accessible from the front. It is implemented on almost all models, from prestigious Bosch to less popular brands. For aesthetic reasons, it is necessary to eliminate the gap at the top - the machine is raised to the tabletop and only after that the set is leveled in all positions and planes.
In principle, that’s all – you can do a test run and evaluate the quality of the connection. The final stage for built-in models is hanging the front door from the set. There is a template for this:
We put it “in place” on the dishwasher door. We transfer it to the back side of the facade door and make markings. We mark the holes for the screws with an awl or drill. We degrease the areas for the double-sided self-adhesive facade fasteners and attach the seal. We combine - we put the facade on the dishwasher door. Carefully open it and secure it with 1 self-tapping screw. We close it, evaluate the position of the façade, and adjust it if necessary. We open it and fasten the façade diagonally with a second self-tapping screw. Again, we make sure that the position is correct and tighten the remaining screws - we secure them completely.
After this, we adjust the built-in dishwasher - we clarify the position in the plane of the remaining facades of the set. If the design provides for it, we fasten it with self-tapping screws to the headset and install the base - in most cases it requires trimming it from above.
At this point, the installation of the dishwasher is completely completed. Obviously, you can do everything yourself with a minimal set of tools. Additional difficulties can only be caused by the aesthetics of the kitchen set itself.
Recirculation pump
The water reaches the desired temperature; it is necessary to apply a stream to the sprinklers.
The rotating rocker arms of the working chamber reach three in number. The main pump is considered the heart that ensures the vigorous operation of the dishwasher. It takes water from the internal container and delivers it to the rocker arms through a special profile.
Sometimes the heart is supplied with an instantaneous water heater, reducing cycle time. The temperature value is controlled by sensors and thermal relays. The meaning of the recirculation pump is: the water level rises more slowly, the machine is more economical. Requires reduced speed, produced only by synchronous motors operating on an inverter power supply circuit.
Requires reduced speed, produced only by synchronous motors operating on an inverter power supply circuit. At the same time, a reduced noise level and durability of the equipment are achieved. The specially shaped pipe tapers towards the top.
To achieve the same pressure at all points of exit from the rocker arms.
The spray holes, with a diameter so small that a toothpick can barely fit inside, are located slightly at an angle, and the rocker arms rotate due to the jet thrust created. The approach will provide a jet speed of 150 km/h; smart machines can adjust the parameter depending on the level of contamination of the dishes.
The more terrible the plates look, the more thoroughly they will be defamed. A special sensor is used to detect contamination.
Preparatory work
To connect you need the following tools:
- Screwdriver Set;
- adjustable wrench;
- insulating tape.
Necessary 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 the 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.
Recommendations for individual installation operations
The work on installing the PMM also includes leveling the position of the machine using adjusting screws. Two of them are located in the front of the body, one is located in the back. Built-in models are secured in the opening using bushings and screws. Tips to help you connect correctly and extend the trouble-free operation of your dishwasher:
- installing a drain hose in a sink may risk flooding your neighbors; if the hose falls out of the sink, it is better to connect it through a siphon;
- the grounding wire from the PMM socket is connected to the bus of the same name on the apartment panel - it is prohibited to ground the machine to gas, heating, or water pipelines;
- the gap between the wall and the back panel of the device must be ≥5 cm to ensure air circulation;
- Electrical sockets for each high-power household appliance: stove, washing machine, PMM must have a separate connection to the apartment panel so that there is no overload in the electrical network.
The device comes with a user manual, which includes connection instructions. Each PMM model is individual, but the recommendations are general.
