Maintenance instructions, Changing the anode rod

Maintenance instructions

Note: Do not attempt to repair this water heater yourself. Call a service person for assistance. Always turn off the power supply to the heater prior to servicing or draining the heater.

PERIODIC MAINTENANCE AND PARTS REPLACEMENT

Draining the Heater

Removing the heating element

Descaling the heating element

Note: For most of these operations, the water will have to be drained from the heater. For all of these operations the power supply needs to be shut off and the front cover removed.

Remove cover plate V (fig. 3/4) using a thin screw-driver operating on point W (fig. 3/4). Unscrew the screw below and lift the cover C (fig. 3/4). When reassembling work in the opposite way being careful to insert first the tongue of the cover into the slot.

1)If the heater has been installed with flexible hoses, shut off the power supply and turn the heater upside down over a sink to drain the water out of it, OR

2)If the heater has been installed with rigid piping, siphon the water out through any (lower) service valve on the (inlet side). Keep a hot water faucet open while siphoning the water out, OR

3)If the heater has been installed with flexible hoses, it can also be emptied by siphoning through the inlet side hose. Keep a hot water faucet open while siphoning.

1.Turn off power supply and drain the heater (see previous section).

2.Remove the front cover plate, disconnect terminals X, Y and T (fig. 3/3).

3.Unscrew the 4 heating element retaining nuts F (fig. 3/3).

4.Remove the element. G (fig. 3/1).

Scale deposits can affect the heating capability of the element.

Heavy scale can even cause the element to burn out. The element can be descaled either chemically or manually:

A)Soak the element in white vinegar or other descaling solution. Once descaled, rinse well with fresh water, to which you should add some baking soda, OR

B)Once the element has dried up, use a soft brush (non metallic to prevent damaging the stainless steel sheath) on element. Brush the dried mineral off. Reinstall the element with gasket and make the wire connections.

C)Replace anode rod if considerably shorter then diagram.

WARNING: make sure the tank has been refilled with water before restoring power.

REPLACEMENT OF PARTS

Changing the anode rod

The anode rod (N fig. 3/2) helps protect the tank against corrosion. Depending on the water condition, the magnesium anode rod may need to be changed every year or so. Galvanic and electrolytic corrosion can destroy a tank if the anode rod is “spent”. Rusty water is usually an indication of a “spent” anode rod. If rusty water is present, examine anode rod immediately. Rapid degradation of the anode rod (less than 1 year) may indicate the presence of galvanic corrosion due to “stray” direct current. In this case, it may be necessary to add a “grounding strap” from the Ariston tank to the copper plumbing.

1.Turn off the power supply and drain the heater (see previous section).

2.Remove heating element (see previous section).

3.Remove and replace the anode rod N (fig. 3/2).

4.Refill tank with water before restoring power.

GL 2.5, GL 6+, GL 4 specifications

The Ariston GL series, comprising models GL 2.5, GL 4, and GL 6+, is designed to provide efficient and reliable water heating solutions for both residential and commercial applications. Each model comes equipped with advanced features and technologies, ensuring optimal performance, energy efficiency, and user convenience.

The Ariston GL 2.5 is a compact and versatile water heater perfect for smaller households or facilities. With a capacity of 2.5 liters, it is ideal for applications requiring quick access to hot water, such as handwashing or kitchen use. One of its standout features is the high-quality insulation that helps to maintain the water temperature, significantly reducing energy consumption. The model also boasts a user-friendly interface with easy-to-adjust temperature settings, allowing users to customize their experience.

Moving up to the GL 4, this model offers a larger capacity of 4 liters, making it suitable for slightly larger households or lighter commercial uses. It retains the same energy-efficient technology as the GL 2.5, with enhanced insulation properties and a robust heating element that ensures rapid water heating. The GL 4 is also equipped with multiple safety features, including overheat protection and a thermal fuse, to guarantee safe operation. Its compact design allows for flexible installation options, making it a great fit for tight spaces or under sinks.

The Ariston GL 6+ takes water heating a notch higher with a capacity of 6 liters. This model is tailored for larger families or environments where hot water demand is higher. The GL 6+ emphasizes energy efficiency, utilizing advanced heating technology that minimizes electricity consumption while maximizing output. It features a digital control panel that provides precise temperature management, enabling efficient energy use without sacrificing comfort. In addition, this model includes integrated smart technology, allowing users to monitor and control water heating remotely via a mobile app.

All models in the GL series feature a durable build, made from high-quality materials that ensure longevity and resistance to corrosion. The sleek design complements modern interiors, while their lightweight nature makes installation straightforward. In summary, the Ariston GL 2.5, GL 4, and GL 6+ present an ideal solution for those seeking reliable, energy-efficient, and user-friendly water heaters, catering to various needs without compromising performance.