Ariston EUROPRISMA EP 15 UR, EUROPRISMA EP 10 UR, EUROPRISMA EP 10 UR/2kW, EUROPRISMA EP 15 OR, EUROPRISMA EP 15 UR/2kW User Manual

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WATER HEATERS

5 TO 30 LITRES

EFFICIENT AND VERSA TILE
ELECTRIC W ATER HEATERS

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Mains Cold Feed

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Mains Cold Feed

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Mains Cold Feed

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THE SMART CHOICE

5 - 30 LITRE WATER HEATERS

OPEN OUTLET INSTALLATION

UNVENTED SINGLE INSTALLATION

There ar e many installations wher e hot water is r equired
but where it is not convenient to enlar ge the existing
central hot water system or wher e there is no central
system at all.

This br ochure intr oduces a range of Ariston water
heaters, fr om 5 litr es to 30 litr es capacity , designed to
deliver hot water for localised use such as in small
industrial units, war ehouses, dentists’ and doctors’
surgeries, cafés, and cer tain residential situations, e.g.
additional bathr ooms, loft conversions, etc.

Ariston’s Eur eka and Piccolo water heaters ar e suitable
for vented or gravity cold feed. The Ariston Eur oprisma is
designed for installation with an unvented cold feed. The
specifier and installer should note the dif ferent
regulations and r equirements for the two categories of
unvented systems:

- over 15 litr es, and

- 15 litr es and under .
These ar e detailed in ‘a guide to Unvented Cylinder and
Water Heater Systems’, available FREE fr om Ariston,
tel [phone].

A sister br ochure, Unvented Cylinders, intr oduces Ariston
products fr om 50 litr es to 500 litr es designed for dir ect
or indirect heating applications.

Further technical advice is available fr om the technical
advice line, tel [phone] . Training courses ar e
available at various centr es nationwide which can qualify
the installer as a “competent person” to install unvented
systems with a capacity over 15 litr es.

UNVENTED MULTIPLE INSTALLATION

MERLONI TERMOSANITARI GROUP

The Merloni T ermoSanitari Gr oup, owner of the Ariston
brand name, is the leading world manufactur er of
unvented water heating and storage pr oducts with
more than 50 years experience. The pr oduction of
water heaters is distributed between five pr oduction
plants in Eur ope. Continuous r esear ch into new
technology and design ensur es that Ariston’s quality
and reliability r emain at the high standar d its
customers have come to expect. Ever y detail of water
heater production is contr olled by qualified personnel,
using the latest technology , quality materials, and
continuous testing thr oughout the pr oduction cycle. By
applying such stringent conditions, the MTS Gr oup has
attained ISO Corporate Cer tification, “joining a few
elite companies within the EU to achieve this A ward”.

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THE SMART CHOICE

5 - 30 LITRE WATER HEATERS

INSTALLATION FLEXIBILITY

Thanks to their compact sizes, the range of Ariston electric

water heaters can be installed vir tually anywhere. Ther e

are under-sink and over-sink models to suit demands fr om

low-usage single basin installations, to heavy-usage 2-3

basin installations. Installations of unvented water heaters

of 15 litr es or less ar e tr eated dif ferently by r egulations

and guidelines fr om those of mor e than 15 litr es.

Guidance is of fered in a fr ee leaflet fr om Ariston, tel:

01494 755600, e-mail: [e-mail] oup.com

ANTI-CORROSION
SYSTEMS

Ariston Eur oprisma water heaters ar e

vitreous enamel coated, high-str ength steel

for per formance and durability. All ar e

factor y fitted with an active magnesium

anode to give guaranteed long tank life. The

magnesium anode system is a sacrificial

anode positioned inside the tank in such a

manner as to ensur e easy inspection and

replacement

when necessar y.

RELIEF VALVES

All Ariston Eur oprisma unvented water heaters ar e supplied

with either a factor y fitted temperatur e and pr essur e relief

(T&P) valve (model EP30 R only), or a separate pr essur e

relief (PR) valve. The T&P valve pr events the stor ed water

from exceeding 100°C in the event of the failur e of the

other safety devices. The PR valve is supplied as standar d

with Europrisma 10 and 15 litr e models and pr otects fr om

over pressurising. See over for details of Eur oprisma

optional expansion vessel and check valve, or pr essur e

reducer, and

line strainer .

THERMOSTAT

All Ariston water heaters ar e equipped with quality

thermostats, which guarantee high per formance and safety .

THERMAL CUT-OUT

All Ariston Eur oprisma water heaters ar e also equipped with a

manual reset ther mal cut-out. This device over rides the main

thermostat in the case of failur e. (In the case of the Eur eka

and Piccolo a ther mal fuse is fitted).

TOP QUALITY HEA TING ELEMENTS

Built with first grade materials to guarantee a long life, the

elements incorporated in most Ariston water heaters ar e all

produced “in-house” at one of the MTS gr oup’s ISO 9001

certified factories.

EFFICIENT INSULA TION,
LOW POWER CONSUMPTION

A high density , thick polyur ethane foam layer guarantees all

Ariston Eur oprisma water heaters excellent insulation, whilst at

the same time drastically cutting power consumption.