How to connect a dishwasher

Although connecting a dishwasher may seem difficult, it is something you can do on your own with the correct instructions. Knowing the fundamental procedures is essential to making sure everything goes as planned, whether you’re remodeling your kitchen or installing one for the first time.

This tutorial will lead you through every step of the procedure, from connecting the required parts to installing the appliance. You can quickly set up and operate your dishwasher with a few simple tools and a little perseverance.

You can have more control over your home setup and save money and hassle by following these easy instructions instead of hiring a professional. Let’s get started on setting up your new dishwasher for use and connection.

Step	Description
1. Choose a location	Pick a spot near the sink and power outlet for easy water and electrical connections.
2. Turn off the water	Shut off the water supply to prevent leaks while connecting the dishwasher.
3. Connect the water supply	Attach the dishwasher"s water inlet to the cold water supply line using a hose and secure it tightly.
4. Connect the drain hose	Secure the dishwasher"s drain hose to the sink"s drain pipe or garbage disposal unit.
5. Plug in the power	Connect the dishwasher"s power cord to a grounded electrical outlet.
6. Test for leaks	Turn on the water supply and run a short cycle to check for any leaks.
7. Secure the dishwasher	Adjust the dishwasher"s feet and secure it to the countertop or sides to prevent movement.

Choosing a location

Before buying a dishwasher, the equipment needs to be placed in a certain location. You must be aware of the size of the matching niche if you plan to incorporate a dishwasher into kitchen furniture. It may be found beneath the sink, the cooking panel, or the countertop.

The approximate ratio between the built-in dishwasher’s dimensionsand the niche’s dimensions

The sink, which is already connected to the water supply and sewage, should be placed close to the dishwasher installation location. The device may not function properly if it is farther than 1.5 meters from the utilities.

Built-in dishwasher and washing machine next to sink

Verify that a dishwasher is situated close to the electrical outlet for the dishwasher. Using an extension cord to run the dishwasher is risky because it uses a lot of electricity, particularly if multiple devices are connected to it.

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The extension cord cannot be positioned behind the dishwasher’s rear wall.

The problem of providing communications is easier to handle for a small dishwasher that can be set up right on the countertop because it can be positioned as close to the sink as feasible. When there isn’t a niche in the furniture that meets the necessary measurements, this option works best. It is sufficient to just put the drain hose in the sink; there is no need to connect to the sewer at all.

Electricity supply

The tubular electric heater, also known as the heating element, uses the dishwasher’s primary power source to heat the water to the proper temperature. The dishwasher uses two to three kilowatts of electricity when it is operating. The technical documentation or the sticker on the machine body (see photo below) contain information about this parameter.

The Hansa brand compact dishwasher’s 1.93 kW power is listed on the label.

These indicators show that the socket needs to be able to handle currents of at least 16 A. In this instance, it needs to be situated in an easily accessible area. There are two possible locations: in an adjacent niche or, in the event of a built-in dishwasher, slightly above the furniture countertop. The minimum distance to the sink is 0.5 meters because of the possibility of water infiltration. There is one more requirement to be met: the socket must be placed no more than one meter away from the dishwasher.

The figure below depicts the best possible option for utility placement, where:

1. PMM body.
2. PMM connection area with the electrical network.
3. PMM connection area with the water supply.
4. Drainage area into the sewer.

Diagram showing how to connect the dishwasher to the utilities correctly

The distribution board should have a dedicated line that leads to the socket. Run the wire along the wall and cover it with a decorative box if it hasn’t been laid and the apartment has already undergone renovations. In this instance, the interior’s appearance won’t degrade. As long as the washing machine is not going to be turned on simultaneously with the PMM, it can be connected using the same line.

Among the methods for tying the dishwasher into the electrical system

Use a cable with multi-core copper conductors (such as the VVG-ng-Ls brand) and a cross-section of 2.5 mm 2 for installation. There must be circuit breakers that operate at a current of 16 A as well as a residual current device, hereinafter referred to as an RCD. One differential circuit breaker can, incidentally, be used in place of the RCD and circuit breakers.

These devices must be installed because there is a chance that water could short circuit the electrical system and cause electric shock injuries to humans.

Circuit breakers with residual current and RCD

The protective device’s parameters are as follows: 25 A, 10 mA tripping current. A 16 A RCD and a 30 mA leakage current are suitable. Dishwashers from different brands, such as Bosch, Siemens, Electrolux, Indesit, Whirpool, and others, use the same connection.

A few simple tasks must be completed in order to connect a dishwasher: connecting the power, making sure the drainage is correct, and setting up the water supply. With a little perseverance and the appropriate equipment, most people can complete the simple process on their own. You can save time and money on installation fees by following a few easy steps to quickly get your dishwasher up and running.

Instructions for connecting to the water supply

Flexible hoses from hot and cold water pipes typically connect to the mixer tap that is found in the sink. For this reason, the location of the dishwasher’s most practical connection point to the water main is where this type of hose is connected. If not, you will need to use a tee or a manifold with two branches and taps to cut a hole in the pipe. There needs to be a tee with a shut-off valve installed beneath the sink when connecting at the flexible hose’s junction with the water supply.

Attaching a tee at the intersection of a flexible hose and an exterior wall-mounted water main

It is essential that the tee has a shut-off valve so that, in an emergency, you can quickly cut off the water supply. You will only need one tee because the majority of dishwasher models only require cold water.

You should get the following supplies and equipment ready for work:

• a tee with a built-in tap, made of brass or bronze, with a thread diameter of 3/4 inches (this diameter is suitable in most cases);
• inlet coarse filter (if one is not included in the dishwasher kit);
• fluoroplastic sealing tape (FUM tape);
• adjustable wrenches;
• a sharp knife.

Two-outlet branch pipe with a 3/4-inch thread diameter

A manifold featuring two outlets with the same diameter (3/4 inch) and two shut-off valves should be installed in place of the tee if the kitchen already has a washing machine or if one is planned (see above photo). Furthermore, some dishwasher models come with inlet hoses that are just a little over a meter long—too short. Should this length prove insufficient, you will need to purchase a new hose from a specialty retailer.

Dishwasher’s inlet hose and the integrated "Aquastop" system

If you want to manually connect the dishwasher to the water supply, you should follow these steps, one after the other, step by step:

1. Turn off the water supply to the apartment.
2. Disconnect the flexible hose that supplies cold water to the mixer from the water pipe.
3. Connect the water pipe to the inlet of the tee or branch pipe, having previously wound FUM tape on the thread.
4. Connect the outlet of the tee or manifold to the flexible hose going to the mixer. Do not forget to use FUM tape.
5. Connect the filter and the inlet hose of the dishwasher to one of the side branches.
6. If you have a washing machine, connect its inlet hose to the second branch of the branch.
7. Check the tightness of all connections by supplying water to the main.

This completes the dishwasher’s water connection.

Occasionally, the fastening and communications supply need to be redone during the dishwasher installation process.

Installing the dishwasher close to the sink is occasionally not possible due to certain circumstances. Here, you will need to make an incision in the water pipe. If it’s composed of metal and plastic, no problems will arise. To ensure a dependable connection, a section of pipe must be cut out and replaced with a tee or manifold fitted with press fittings.

Compression press fittings are utilized for the collet connection of metal-plastic pipes.

The metal pipe cannot be cut; instead, drill a hole through the branch and place a clamp on top of it. Furthermore dependable is this connection.

Metal pipe tee clamps with shut-off valves attached

Connecting the drain to the sewer

You should be aware of the siphon that empties liquid from the sink into the sewer if the dishwasher is placed next to the sink. If there are no free outlets, you will need to buy a siphon from a plumbing store that has one or two extra outlets (if you also need to connect a washing machine).

Two-outlet siphon for a dishwasher and washing machine

Conical fittings in the shape of an inverted V are installed in the outlets (see photo). This form is not by accident. The upward bend stops liquid from the sewer from backflowing into the dishwasher and stops the smell from the sewer from spreading.

Using a tee to connect the dishwasher to the sewer

A tee with an oblique outlet allows for a direct connection to the pipe as well (see photo). A wall-mounted special device can be used to arrange the drain hose’s upper bend. A rubber sealing coupling should be installed at the intersection of the tee and the drain hose to stop offensive odors from entering the space.

Finally, make sure everything is tight, connect the dishwasher to the power source, and turn it on for the first time. Dishes should not be used for this. You must use cleaning tablets specifically designed for cleaning and disinfecting PMMs in order to wash the hopper. The dishwasher cannot be placed in the furniture niche until after the initial turn on.

As you can see, making the independent connection to the utilities is possible. We hope this article will assist you in completing this task.

There are a few easy steps you can follow to make connecting a dishwasher less complicated. You can quickly and effectively set up your appliance by making sure you have all the required tools and closely following the instructions. Recall that spending the time to complete the task correctly now will spare you from future issues.

Keep an eye on the connections, particularly the power and water supplies. These are essential to the functionality and security of the dishwasher. Before beginning your first cycle, make sure everything is in working order and that no leaks or loose connections exist.

Lastly, if you have any questions concerning any aspect of the installation, don’t be afraid to seek professional advice. Even though you can do it yourself, having a professional assist you can ensure that your dishwasher functions flawlessly right away.

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