It is advisable to leave enough space around the hot tub for future servicing.

We recommend leaving access of at least:

60-80 cm around the technical section of the hot tub.

The most important area to access is the section where the following are located:

• control unit,
• pumps,
• heater,
• filtration,
• ozonator,
• electrical connection.

If the hot tub will be recessed into a terrace or built around, it is necessary to prepare service doors or removable panels.

The hot tub should never be built in so that the technology cannot be accessed. In the event of a fault, the terrace or cladding would then have to be dismantled.

The hot tub must stand on a solid, level and stable surface.

An ideal base is, for example:

• concrete slab,
• reinforced terrace,
• paving on a high-quality base,
• a solid foundation prepared for high loads.

It is important to consider that a filled hot tub can weigh even more than 1,500-2,500 kg depending on the model size, water and number of people.

The surface must be:

level, load-bearing, stable and must not sink over time.

We do not recommend placing the hot tub directly on grass, soil, uncompacted gravel or any soft surface.

Before delivery, it is necessary to check that the hot tub can be brought to the installation site.

We recommend checking:

• gate width,
• path width,
• stairs,
• passages around the house,
• height differences,
• possibility of using handling equipment.

Hot tubs are large in size and are often transported on their side. If access is difficult, more people, special handling equipment or a crane may be required.

Before installation, we recommend ensuring that the hot tub can be filled quickly.

Ideally, there should be nearby:

garden tap / hose / water supply.

The hot tub is usually filled with a garden hose. The closer the water supply is, the faster and easier it is to start using the hot tub.

Recommendation:

• prepare a sufficiently long hose,
• check the water pressure,
• make sure water can be easily topped up in the future,
• bear in mind that filling can take from several dozen minutes to several hours depending on the hot tub volume and water pressure.

Option 1: Hot tub for 230 V / 220-240 V

Smaller or more energy-efficient hot tubs may be designed for connection to 230 V.

Typical electrical preparation:

CYKY-J 3×2,5 mm²
separate 1×16 A / C circuit breaker
30 mA residual current device

The cable contains:

L + N + PE

That is, phase, neutral conductor and protective conductor.

For some models, operation on 230 V may involve power limitations. For example, when the massage pumps are running, water heating may temporarily switch off to avoid exceeding the power input. This is common mainly with hot tubs connected to a single phase.

Recommendation:

• separate electrical circuit for the hot tub only,
• do not connect via an extension cable,
• do not connect to a standard garden socket without verification,
• use a 30 mA residual current device,
• route the cable to the technical section of the hot tub,
• leave a cable reserve of at least 2-3 metres.

Option 2: Hot tub for 400 V / 380-400 V 

Larger hot tubs or hot tubs with higher output are usually connected to 400 V.

Typical electrical preparation:

CYKY-J 5×2,5 mm²
separate 3×16 A / C circuit breaker
4P 30 mA residual current device

The cable contains:

L1 + L2 + L3 + N + PE

That is, three phases, neutral conductor and protective conductor.

For more powerful hot tubs, longer cable routes or higher circuit protection, a stronger cable may be required, for example:

CYKY-J 5×4 mm²

The advantage of a 400 V connection is better distribution of power between phases and fewer operating limitations. With some models, a 400 V hot tub can handle water heating and massage pump operation at the same time, while the 230 V version may have limited operation.

Recommendation:

• separate electrical circuit for the hot tub only,
• circuit breaker according to the power input of the specific hot tub,
• 30 mA residual current device,
• route the cable to the technical section of the hot tub,
• leave a cable reserve of at least 2-3 metres,
• entrust the connection to a qualified electrician.