Ariston GL 2.5, GL 4, GL 6+ manual General remarks, Installation instructions

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General remarks

CAUTION The manufacturer cannot be responsible for the damages caused by improper installation or by failure to follow instructions in this pamphlet. Comply with the installation instructions before completing electric connection.

CAUTION

The thermostat has been pre-set at the factory between 41°C (105° F) and 45° C (113° F).

CAUTION Hydrogen gas can be produced in a hot water system served by this heater that has not been used for a long period of time (generally 2 weeks or more). Hydrogen gas is extremely flammable. To reduce the risk of injury under these conditions, it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected to the hot water system. If hydrogen gas is present, there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow. There should be no smoking or open flame near the faucet at this time.

Installation instructions

MODEL GL 6+

 

The GL 6+ water heater can be installed under the sink.

Wall

Fasten the supplied mounting bracket to the wall. Use screws that are suitable for the

mounting

wall material and the weight of the heater. Hang the water heater on the bracket. Tug

(only for vertical

down wards on the heater to ensure that both “fingers” of the bracket are seated in the

installation)

mounting slots. Confirm water piping orientation before wall mounting.

 

Floor

Heater can sit on floor. Confirm water piping orientation before locating on floor location.

Mounting

 

Wiring

The GL6+ needs to be wired with 12 GA. wire to a minimum 20 amp/ maximum 20 amp

 

branch circuit. (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.) Insert

 

12 AWG through conduit at rear of heater. Secure internal wire connector below thermostat

 

(fig. 3/3) and connect wiring to right side of thermostat control. (+) to lower terminal marked

 

“L”, neutral to upper terminal marked “N”. Unit must be groundedT (fig. 3/3).

Pipe connections

Connect the cold water inlet pipe to the inlet nipple (marked with a blue ring) and the hot water outlet pipe to the outlet nipple (marked with a red ring).

The model GL 6+ can be piped horizontally from the side or vertically from the top. If you wish to install the unit horizontally, with the piping connections on the right side, you will have to be certain the tap between the two water tappings is plugged, the supplied Temperature and Pressure Relief Valve will need to be installed on top.

If you wish to install the unit vertically, with the piping connections on top, you will have to be certain the tap on the side is plugged, the supplied Temperature and Pressure Relief Valve will need to be installed on top.

MODEL GL 2.5 - GL 4

The GL 2.5 and GL 4 water heaters can be installed under the sink.

Wall mounting

Fasten the supplied mounting bracket to the wall. Use screws that are suitable for the wall material and the weight of the heater. Hang the water heater on the bracket. Tug down wards on the heater to ensure that both “fingers” of the bracket are seated in the mounting slots.

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Contents Page Technical data Important Safety InstructionsComponent Parts Dimensions for GL 2.5 GL General remarks Installation instructionsInstructions for use Starting and testingMounting Pipe ConnectionsChanging the anode rod Maintenance instructionsTroubleshooting Page Ariston Limited 6 Years Warranty MTS Makes USE Recycled Paper
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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.