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

Supplied By www.heating spares.co Tel. [phone]

WATER HEATERS

5 TO 30 LITRES

EFFICIENT AND VERSA TILE
ELECTRIC W ATER HEATERS

Supplied By www.heating spares.co Tel. [phone]

Mains Cold Feed

C

H

C

H

Mains Cold Feed

C

H

C

H

C

H

Mains Cold Feed

C

H

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”.

Supplied By www.heating spares.co Tel. [phone]

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.

Supplied By www.heating spares.co Tel. [phone]

62

203

a

100

100

b

d

c20

62

203

a

b

d

c

20

1

/

2

"

BSP

150

b

d

c20

1

/

2

"

BSP

1

/

2

"

BSP

62

203

a

100

EUROPRISMA

3 YEAR GUARANTEE

10,15 & 30 litres

OVER-SINK AND UNDER-SINK
WATER HEATERS

• Unvented cold water feed : see
A Guide to Unvented Cylinders
and Water Heater Systems,
available free from Ariston

• Extra thick steel-plated tank,

pressure tested and double
coated vitreous enamelled

• Large magnesium anode

• CFC free polyurethane

thermal insulation

Steel
tank

High quality
enamel coating

• Regulation thermostat equipped
with safety thermostat

• External temperature control

• Heating indicator light

• Front access for ease of
maintenance

• Simple installation

• 3 year tank guarantee (1 year
guarantee on electrical
components)

Magnesium
anode

TECHNICAL INFORMATION

EUROPRISMA

EP 10 O R

Capacity litres 10 10 10 15 15 15 30
Power kW 3 3 2 3 3 2 3
Voltage V 240 240 240 240 240 240 240
Reheat time (∆T = 50°C) minutes 12 12 17 18 18 26 58
Maximum temperature °C 80 80 80 80 80 80 75
Heat loss (kWh in 24 h) 60°C 0.50 0.67 0.67 0.70 0.87 0.87 0.90
Typical application* D D A C/E/G C/E/G B F/H

EUROPRISMA

EP 10 U R

EUROPRISMA

EP 10 U R/2kW

EUROPRISMA

EUROPRISMA

EP 15 O R

EP 15 U R

EUROPRISMA

EUROPRISMA

EP 15 U R/2kW

EP 30 R

Polyurethane
insulation

*Typical application

•A: Low usage 1/2 basins/1 sink;

(small kitchens, en suite bathrooms,
loft conversions and cloakrooms

•B: Low usage 2/3 basins/1 sink;

(kitchens, garages, factories and WCs)

•C:Low usage 4/5 basins/2 sinks;

(WC blocks)

•D: Medium usage 2/3 1/2 basins/1 sink
E: Medium usage 2/3 basins/2 sinks

•

•

F: Medium usage 4/5 basins/2 sinks

•

G: Heavy usage 1/2 basins/1 sink

•

H: Heavy usage 2/3 basins/1 sink

Temperature
regulation

EUROPRISMA OVER-SINK

EP30 R only

EUROPRISMA UNDER-SINK

EUROPRISMA OVER-SINK 30 litre

EUROPRISMA

EP 10 O R

a mm 350 350 350 350 350 350 440
b mm 255 255 255 300 300 300 365
c mm 350 350 350 350 350 350 440
d mm 90 90 90 80 80 80 110

EUROPRISMA

EP 10 U R

DIMENSIONS

EUROPRISMA

EP 10 U R/2kW

EUROPRISMA

EP 15 O R

EUROPRISMA

EP 15 U R

EUROPRISMA

EP 15 U R/2kW

EP30 R only

EUROPRISMA

EP 30 R

Supplied By www.heating spares.co Tel. [phone]

EUROPRISMA

DIELECTRIC
JUNCTIONS

HOT

COLD

PRESSURE RELIEF VALVE

(6 bar)

DISCHARGE

NEAREST COLD WATER

DRAW-OFF

PRESSURE REDUCING VALVE

(SET AT 3.5 bar)

ISOLATING VALVE

(FIXED JUMPER OR

1/4 TURN BALL TYPE)

COLD
WATER
MAINS

EXPANSION VESSEL

(CHARGE SET AT 3.5 bar)

NON-RETURN

VALVE

SUPPLY TO OTHER PARTS
OF PLUMBING SYSTEM

DIELECTRIC
JUNCTIONS

HOT

COLD

PRESSURE RELIEF VALVE

(6 bar)

DISCHARGE

NEAREST COLD WATER

DRAW-OFF

PRESSURE REDUCING VALVE

(SET AT 3.5 bar)

(IF MAINS 6 BAR)

ISOLATING VALVE

(FIXED JUMPER OR

1/4 TURN BALL TYPE)

COLD
WATER
MAINS

SUPPLY TO OTHER PARTS
OF PLUMBING SYSTEM

2.8 m (10l) OR 4.2m (15l) OF 15 mm PIPE
IS REQUIRED FOR EXPANSION

3 YEAR GUARANTEE

The Europrisma 10 and 15 litr e capacity units can be installed in one of
two ways. The following guidelines ar e designed to help select the
correct items prior to installation.

USING FEED PIPE TO ACCOMMODATE EXPANSION

10,15 & 30 litres

Curr

ent Water Regulations and
Byelaws per mit unvented water
heaters with capacity of 15 litr es or
less to accommodate the expansion
of water that occurs during the
heating cycle in the system pipe
work. To achieve this the pipe work
between the last cold water draw of f
and the water heater must be of
suf ficient volume to accommodate
the expansion.

LENGTH OF PIPE

15mm pipe 2.8m 4.2m
22mm pipe 1.5m 2.2m

EUROPRISMA

10 LITRE

USING AN EXPANSION KIT

OPTIONAL KIT A: EXPANSION VESSEL
AND CHECK VALVE

OPTIONAL KIT B: PRESSURE REDUCER
WITH INTEGRAL LINE-STRAINER

EUROPRISMA

15 LITRE

If it is not possible to accommodate
the expansion in the system pipe
work, it is then necessar y to use an
expansion vessel and non-r eturn
valve (Kit A). If the mains water
pressur e may exceed 3.5 bar a
pressur e reducing valve (Kit B)
should also be installed. The
dischar ge from relief valves must be
made in a safe and conspicuous
manner; ther efore a tundish (Kit C) is
available for 10 and 15 litr e units
if required.

OPTIONAL KIT C: TUNDISH FOR
10 AND 15 LITRE UNITS

The Europrisma EP 30 R is cover ed by the Building Regulations and it is not possible to accommodate the expansion
water within the system pipework. Expansion contr ols must be installed. The EP 30 R is supplied with a tundish as
standard.

Supplied By www.heating spares.co Tel. [phone]

EUREKA

a

c

d

b

1

/

2

"

BSP

3

/

8

"

BSP

10 YEAR GUARANTEE

OPEN OUTLET ELECTRIC STORAGE
WATER HEATER

•

Open outlet - suitable for mains
or gravity feed

•

Manufactured from a corrosion
proof plastic material

• Completely recyclable and
completely ecologically sound

• External temperature control

• Heating indicator light

• Equipped with directional spout

• Illuminated on/off switch

• Ceramic disc mixing valve

• 10 year tank guarantee (1 year
guarantee on electrical
components)

TECHNICAL INFORMATION - DIMENSIONS

Capacity litres 13
Power kW 2
Voltage V 240
Reheat time (∆T= 50°C) minutes 30
Maximum temperature °C 75
Heat loss (kWh in 24 h) 60°C -

EUREKA

EUREKA

Typical application

Low usage 1/2 basins/1 sink; (small kitchens,
ensuite bathrooms, loft conversions + cloakrooms)

EUREKA

a mm 320
b mm 490
c mm 230
d mm 130

Supplied By www.heating spares.co Tel. [phone]

PICCOLO

G 1/2"

30

54.5

9.5

100

d

d

b

c

62

a

10 YEAR GUARANTEE

OPEN OUTLET ELECTRIC STORAGE
WATER HEATER

•

Open outlet - suitable for mains
or gravity feed

•

Manufactured from a corrosion
proof plastic material

• Completely recyclable and
completely ecologically sound

• External temperature control

• Heating indicator light

• Equipped with directional spout

• Illuminated on/off switch

• Certified to IP25D (splash proof)
and impact resistant

• Vacuum safety

• 10 year tank guarantee (1 year
guarantee on electrical
components)

TECHNICAL INFORMATION - DIMENSIONS

PICCOLO

ARKS 5 O

Capacity litres 5
Power kW 2
Voltage V 240
Reheat time (∆T= 50°C) minutes 9
Maximum temperature °C 85
Heat loss (kWh in 24 h) 60°C 0.25

Typical application

Low usage 1/2 basins/1 sink; (small kitchens,
ensuite bathrooms, loft conversions +
cloakrooms)

PICCOLO

EXPRESSO

ARKS 5 0

a mm 251
b mm 385
c mm 174
d mm 270

Supplied By www.heating spares.co Tel. [phone]

0063

ARISTON

QUALITY PRODUCTS
EXCEPTIONAL SER VICE

REGIONAL
TRAINING
CENTRES

• Plymouth

• High Wycombe

• Gt. Manchester

Month & Year Printed by Vario Pr ess

COMPREHENSIVE
TRAINING

Programmes acr oss the entir e
Ariston pr oduct range covering all
theoretical and practical aspects.
Designed for commer cial heating
installers, mer chants and
independent gas-heating ser vice
organisations: courses ar e of fered
at 3 fully equipped training centr es
in the UK. In addition per manent
training facilities ar e available at a
number of technical colleges
nationwide.

MTS (GB) Limited

MTS Building
Hughenden Avenue
High W ycombe
Bucks, HP13 5FT
Tel: [phone]
Fax: [phone]

Technical Advice & Customer Ser vice Fax [phone]

TECHNICAL HOT LINE

Immediate and ef fective
technical assistance is only
a phone call away .
Assistance is also available
for any infor mation or advice
on the pr oduct most suitable
for your needs and the
requirements of your system
installation.

Technical Advice 0870 241 8180

Customer Ser vice 0870 600 9888

E-mail: [e-mail]

www.ariston.co.uk

E-mail: [e-mail] oup.com

PROFESSIONAL
SERVICE

Ariston ser vice technicians ar e
swift and pr epared for any
eventuality. They of fer you and
your customers a high level of
assistance, comprising the
best technical, logistic and
human resour ces available.
Ariston invests a gr eat deal in
this field to guarantee a
decisive advantage that
others cannot of fer.

In the inter ests of our customers, MTS (GB) Limited is continually developing these pr oducts to impr ove both

perfor mance and design. W e therefor e reserve the right to change specification without prior notice. This br ochure is accurate at the date of printing. Consumer statutor y rights ar e not af fected.