Technical Assistance
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Frequently Asked Questions
Sintex reserved this space to answer some of the most frequently asked questions. Check out:
Electrical Installation
How do I find out the power of the shower that I can buy?
Check the current (A) of the residence’s circuit breaker and the wire gauge where the shower will be installed.
Does the electrical circuit of electric showers and faucets have any special characteristics?
Yes, the electric circuit must be EXCLUSIVE and INDEPENDENT and the minimum section (gauge) of the conductors (wires) must meet the specification of the packaging and installation manual.
How to connect the Showers or Faucets to the electrical network?
Sintex showers must be connected to the electrical network using porcelain/ceramic connectors or splices insulated with insulating tape. Any other type of connection is inadvisable. The electrical installation must be done by a qualified professional following the NBR-5410 standard.
How to earth a shower?
To avoid the risk of electric shock, the earth wire (green or green/yellow wire) must be connected to a grounding system following Brazilian standard NBR-5410. It is recommended that the electrical installation and grounding system for this appliance be carried out by qualified persons.
The grounding system ensures your safety when using household appliances.
If there is no earthing, what should I do?
Have a qualified electrician carry out a grounding system suitable for the residence. The electrical installation must comply with standard NBR-5410.
Can I use a Residual Current Circuit Breaker (RCCB)?
Yes, our products are compatible with a Residual Currrent Circuit Breaker (RCCB).
Can the earth wire be connected to the neutral?
Never use the neutral wire as a ground. In the event of an electrical network overload, as can happen in the event of lightning, the neutral wire may become charged and burn the electrical appliances connected to it.
Why can't I install an electric shower using plugs and sockets?
The plugs and sockets for general use are not prepared to resist the electric current (A) that circulates through showers and electric faucets, as these are high-power electrical equipment. Their use compromises the safety of the installation.
What is the function of electrical connectors and how to use them?
The function is to ensure safety. Connectors provide good electrical contact between the appliance wiring and the home installation.
A better electrical connection means a good contact area between the two sets of wiring, and the electric current faces less resistance to flow. That makes it safer as it prevents the set from heating up and increases the device’s life.
Can I extend the wiring, is it safe?
Yes, you can extend it, for your safety hire a specialized person for the service.
Can a 220V product be installed when using two 110V phases, one in each wire?
For electronic products, it is unadvised to use 2-phase 110V, although you can use another model with a selector of 3 or 4 temperatures.
Can I change the resistance of a 127V shower to 220V if the voltage in my residence is 220V? And can the opposite be done?
In the case of 127V showers without electronic command, if the resistor is changed to a resistor of the same model but at 220V voltage, the shower will work normally in a 220V installation, as its internal mechanisms are dimensioned to receive electric currents and dissipate heat appropriately.
However, be cautions with the markings on the shower indicating that it is a 127V model. That can confuse future maintenance or if the home changes ownership. Therefore, ideallly, buy it with the appropriate electrical voltage.
If the shower model is 220V, changing the resistance for a 127V version and installing it in a 127V network should never be done, as it is not prepared for this condition and could cause safety risks.
Is resistance easy to find?
Yes, they can be found in the same shops where the product was purchased or via marketplaces such as Mercado Livre, Amazon, Magalu, etc. For more information, please visit our Find Sintex page.
Which circuit breaker and which wiring is suitable for which product?
The circuit breaker and wiring depend on two factors, the voltage, and power of the product. The table below shows the technical specifications for our showers and electric taps:
For distances over 30m, use larger section conductors.
What is Water Resistivity?
Resistivity depends on the capacity of water to conduct electric energy. The higher the concentration of mineral salts in water, the lower its resistivity and the greater the chance of electric shocks.
Hydraulic Installation
How do I clean the water outlet spreader?
The showers that have a system that facilitates cleaning can be opened and cleaned with a smooth part of a sponge, water and soap. Showers that do not open can be submerged in a solution of water and vinegar for 12 hours, then rinsed.
When should I install the pressure regulator/pressure reducer?
The reducer should be installed starting at 80 kPa which is equivalent to eight (8) metres of water column.
Pay attention to the installation manual, as some units have an AUTOMATIC pressure reducer which should never be tampered with.
What is the gauge of the water inlet thread on the products?
The water inlet thread is always in ½” gauge.
Can I adjust the water temperature while the product is running?
If it is electronics, yes, you can change the temperature while it’s running.
For electrical products with 3 and 4 temperatures, it is necessary to close the water valve before adjusting.
Can I use water from a gas or solar heater?
Yes, as long as your standard heating system has safety systems to prevent high temperatures, the water temperature must not surpass 50ºC (122ºF).
Product Installation