UNVENTED CYLINDERS 50 TO 500 LITRES
Maximum hot water, minimum fuss
Being able to turn on any tap in the home and get hot and cold water at mains pressure is something that we would all love to have. With the highly innovative range of Ariston unvented cylinders - this is now a reality. Feeding all the homes taps directly from the incoming cold water main removes the need for a cold water storage tank in the loft, freeing up the space, eliminating the risk of freezing pipes and providing many other benefits. Unvented systems have been widely used across the developed world for generations and, following changes to the water and building regulations over 20 years ago, have become increasingly popular here in the UK. Today, they account for approaching half of all new hot water storage systems and installations are growing at over 20% per year. To ensure that our products meet the changing needs of our customers we undertake continuous research into new technologies and design; as is demonstrated by the current range of Ariston unvented cylinders. These versatile water heaters are either wall mounted (50 litres 100 litres) or floor standing (100 litres 500 litres). They can be heated either directly by electricity or indirectly by an additional heat source e.g. gas or oil. The 100l 210l floor standing cylinders, at just 505mm wide, are amongst the slimmest currently available. And, with all the connections accessible from the front, they can be readily fitted in the tightest of spaces. As part of our ongoing commitment to the environment, Ariston has developed a range of twin coil (solar compatible) cylinders - 200, 250 and 300 litres capacity.
traditional open-vent system
Advantages of an unvented system
Hot and cold water supply to all outlets at mains pressure Drinking water at all cold water outlets, as water is supplied directly from the incoming mains water pipe Good shower flow and pressure without the need for pumps High performance, energy efficient and quiet operation Balanced hot and cold water supply giving wider choice of taps and fittings No storage tank in the loft freeing up potentially valuable loft space and removing the risk of: - Water stagnation - Frost damage to pipes Lower insurance premiums due to the absence of stored water in the loft Greater system design and flexibility Simpler plumbing system less pipework, less time, less cost
unvented indirect & sealed heating systems
unvented direct system & electric space heating

CLASSICO

DIRECT: STD 125, 150, 210, 300
FLOOR STANDING DIRECT UNVENTED CYLINDERS

ENAMELLED STEEL TANK

TEMPERATURE REGULATION
ENVIRONMENTALLY FRIENDLY INSULATION
QUALITY STEEL TANK, 12 BAR PRESSURE TESTED AND EXCLUSIVE VITREOUS ENAMEL COATING (GLASS LINING) ENVIRONMENTALLY SOUND AND HIGHLY EFFICIENT THERMAL INSULATION COMPACT, SLIM DESIGN ALL PLUMBING AND ELECTRICAL CONNECTIONS WITHIN A 90 ANGLE MAGNESIUM ANODE TO PROTECT AGAINST CORROSION
IMMERSION HEATERS SUPPLIED WITH REGULATION THERMOSTATS AND DUAL POLE THERMAL CUT-OUTS FACTORY FITTED 1/2 T&P RELIEF VALVE UNVENTED CONTROL KIT SUPPLIED WITH CYLINDER SIMPLE INSTALLATION 5 YEAR TANK GUARANTEE (2 YEAR GUARANTEE ON ELECTRICAL COMPONENTS)
Technical data - Overall dimensions

STD 125

Nominal capacity l Weight empty kg Weight full kg Voltage V Power kW Reheat time* (T= 45C) min. Reheat time** (T= 45C) min. Max. Working Temp. C Typical application*** 3+D

STD 150

STD 210

STD 300

3+G a mm b mm c mm d mm e mm
* Based on single heating element 100% capacity ** Based on single heating element 70% capacity
***Typical application F: domestic usage 4/5 people (kitchen, 2 bathrooms) D: domestic usage <3 people (kitchen, shower) E: domestic usage 3/4 people (kitchen, bathroom + shower) G: domestic usage 5 people (kitchen, 2 bathrooms + shower)
INDIRECT: STI 125, 150, 210, 300
FLOOR STANDING INDIRECT UNVENTED CYLINDERS
QUALITY STEEL TANK, 12 BAR PRESSURE TESTED AND EXCLUSIVE VITREOUS ENAMEL COATING (GLASS LINING) ENVIRONMENTALLY SOUND AND HIGHLY EFFICIENT THERMAL INSULATION COMPACT, SLIM DESIGN ALL PLUMBING AND ELECTRICAL CONNECTIONS WITHIN A 90 ANGLE MAGNESIUM ANODE TO PROTECT AGAINST CORROSION IMMERSION HEATER SUPPLIED WITH REGULATION THERMOSTAT AND DUAL POLE THERMAL CUT-OUT

CYLINDER THERMOSTAT WITH EXTERNAL REGULATION UNIQUE COIL DESIGN ALLOWS FULL QUANTITY OF WATER TO BE HEATED FACTORY FITTED 1/2 T&P RELIEF VALVE UNVENTED CONTROL KIT SUPPLIED WITH CYLINDER SIMPLE INSTALLATION 5 YEAR TANK GUARANTEE (2 YEAR GUARANTEE ON ELECTRICAL COMPONENTS)

STI 125

Nominal capacity Weight empty Weight full Indirect coil rating Coil surface area Reheat time* (T= 45C) Reheat time** (T= 45C) Voltage Power Immersion reheat (T= 45C) Max. temperature. Typical application*** l kg kg kW m2 min. min. V kW min. C 164 21.6 0.70 E

STI 150

200 18.2 0.70 F

STI 210

254 23.6 0.70 G

STI 300

391 21.2 0.70 H a mm b mm c mm d mm e mm f mm g mm
* Heated to 100% capacity ** Heated to 70% capacity (Tests in accordance with BS EN 12897:2006)
***Typical application E: domestic usage 3/4 people (kitchen, shower) F: domestic usage 4/5 people (kitchen, 2 bathrooms)
G: domestic usage 5 people and above (kitchen, 2 bathrooms + shower) H: above average household use
DIRECT: ITD 100, 125, 150, 175, 210, 250, 300

STAINLESS STEEL TANK

QUALITY STAINLESS STEEL TANK, 12 BAR PRESSURE TESTED ENVIRONMENTALLY SOUND AND HIGHLY EFFICIENT THERMAL INSULATION COMPACT, SLIM DESIGN ALL PLUMBING AND ELECTRICAL CONNECTIONS WITHIN A 90 ANGLE EXCLUSIVE HIGH QUALITY ORANGE-PEEL OUTER FINISH IMMERSION HEATERS SUPPLIED WITH REGULATION THERMOSTAT AND DUAL POLE THERMAL CUT-OUT
FACTORY FITTED 1/2 T&P RELIEF VALVE UNVENTED CONTROL KIT SUPPLIED WITH CYLINDER SIMPLE INSTALLATION 25 YEAR TANK GUARANTEE (2 YEAR GUARANTEE ON ELECTRICAL COMPONENTS)

ITD 100

ITD 125

ITD 150

ITD 175

ITD 210

ITD 250

ITD 300

* Based on single heating element 100% capacity ** Based on single heating element 70% capacity (Tests in accordance with BS EN 12897:2006)
***Typical application D: Domestic usage <3 people (kitchen/shower) E: Domestic usage 3/4 people (kitchen, bathroom + shower)
F: Domestic usage 4/5 people (kitchen, 2 bathrooms) G: Domestic usage 5 people and above (kitchen, 2 bathrooms + shower)
INDIRECT: ITI 100, 125, 150, 175, 210, 250, 300
QUALITY STAINLESS STEEL TANK, 12 BAR PRESSURE TESTED. ENVIRONMENTALLY SOUND AND HIGHLY EFFICIENT THERMAL INSULATION COMPACT, SLIM DESIGN ALL PLUMBING AND ELECTRICAL CONNECTIONS WITHIN A 90 ANGLE EXCLUSIVE HIGH QUALITY ORANGE-PEEL OUTER FINISH IMMERSION HEATER SUPPLIED WITH REGULATION THERMOSTAT AND DUAL POLE THERMAL CUT-OUT

CYLINDER THERMOSTAT WITH EXTERNAL REGULATION UNIQUE COIL DESIGN ALLOWS FULL QUANTITY OF WATER TO BE HEATED FACTORY FITTED 1/2 T&P RELIEF VALVE UNVENTED CONTROL KIT SUPPLIED WITH CYLINDER SIMPLE INSTALLATION 25 YEAR TANK GUARANTEE (2 YEAR GUARANTEE ON ELECTRICAL COMPONENTS)

ITI 100

Nominal capacity l Weight empty kg Weight full kg Indirect coil rating kW Coil surface area m2 Reheat time* (T= 45C) min. Reheat time** (T= 45C) min. Voltage V Power kW Immersion reheat min. Max. temperature. C Typical application*** 123 13.2 0.70 D

ITI 125

155 21.6 0.70 E

ITI 150

180 18.2 0.70 F

ITI 175

211 18.2 0.70 F/G

ITI 210

238 23.6 0.70 G

ITI 250

297 23.1 0.70 G/H

ITI 300

348 21.2 0.70 H a mm b mm c mm d mm e mm f mm g mm
* Heated to 100% capacity ** Heated to 70% capacity Based on single heating element to 100% capacity (Tests in accordance with BS EN 12897:2006)
***Typical application D: Domestic usage <3 people (kitchen, shower) E: Domestic usage 3/4 people (kitchen, bathroom and shower) F: Domestic usage 4/5 people (kitchen, 2 bathrooms)
G: Domestic useage 5 people and above (kitchen, 2 bathrooms and shower) H: Above average household use

PRIMO TWIN

INDIRECT TWIN COIL: ITSI 210, 250, 300
FLOOR STANDING SOLAR COMPATIBLE UNVENTED CYLINDERS
QUALITY STAINLESS STEEL TANK, 12 BAR PRESSURE TESTED ENVIRONMENTALLY SOUND AND HIGHLY EFFICIENT THERMAL INSULATION ALL PLUMBING AND ELECTRICAL CONNECTIONS WITHIN A 90 ANGLE EXCLUSIVE HIGH QUALITY ORANGE-PEEL OUTER FINISH TWIN INDIRECT COILS FOR DUAL HEAT SOURCE APPLICATIONS TWIN IMMERSION HEATERS SUPPLIED WITH REGULATION THERMOSTAT AND DUAL POLE THERMAL CUT-OUT
CYLINDER THERMOSTATS WITH EXTERNAL REGULATION UNIQUE COIL DESIGN ALLOWS FULL QUANTITY OF WATER TO BE HEATED FACTORY FITTED 1/2 T&P RELIEF VALVE UNVENTED CONTROL KIT SUPPLIED WITH CYLINDER SIMPLE INSTALLATION 25 YEAR TANK GUARANTEE (2 YEAR GUARANTEE ON ELECTRICAL COMPONENTS)

ITSI 210

Nominal capacity Weight empty Weight full Indirect coil rating (top) Indirect coil rating (bottom) Coil surface area (top) Coil surface area (bottom) Indirect reheat time* (T= 45C) Indirect reheat time** (T= 45C) Voltage Power Immersion reheat time *** (T= 45C) Max. temperature. l kg kg kW kW m2 m2 min. min. V kW min. C 238 17.0 19.5 0.67 0.3+70

ITSI 250

297 17.0 19.5 0.67 0.3+70

ITSI 300

349 20.9 21.9 0.67 0.3+70 a mm b mm c mm d mm e mm f mm g mm h mm i mm
* Based on bottom coil only to 100% capacity (Tests in accordance with BS EN 12897:2006) ** Based on bottom coil only to 70% capacity (Tests in accordance with BS EN 12897:2006) *** Based on single heating element to 100% capacity (Tests in accordance with BS EN 12897:2006)

HIGH CAPACITY

DIRECT & INDIRECT: 500 STI/STD
FLOOR STANDING UNVENTED CYLINDERS
QUALITY STEEL TANK, 12 BAR PRESSURE TESTED AND EXCLUSIVE VITREOUS ENAMEL COATING ENVIRONMENTALLY SOUND AND HIGHLY EFFICIENT THERMAL INSULATION UNIQUE COIL DESIGN ALLOWS FULL QUANTITY OF WATER TO BE HEATED LARGE SURFACE AREA COIL FOR EXCEPTIONAL REHEAT TIMES PROTECH ANTI-CORROSION SYSTEM
EXTERNAL REGULATION THERMOSTAT DUAL POLE THERMAL CUT-OUT FACTORY FITTED 1/2 T&P RELIEF VALVE UNVENTED CONTROL KIT SUPPLIED WITH CYLINDER SIMPLE INSTALLATION
10 YEAR TANK GUARANTEE (2 YEAR GUARANTEE ON ELECTRICAL COMPONENTS)

HIGH CAPACITY 500 STI

Nominal capacity Weight empty Weight full Indirect coil rating Coil surface area Indirect reheat time* (T= 50C) Voltage Power Immersion reheat time * (T= 50C) Max. temperature. Typical application** l kg kg kW m2 min. V kW min. 641 31.8 1.240/H/I
**Typical application H: above average household use I: light commercial use

HIGH CAPACITY 500 STD

625 N/A N/A N/A 240/H/I a mm
* Primary circuit 80C, 1m3/h circulation

WALL-HUNG

DIRECT: ST 50, 80, 100
WALL-HUNG UNVENTED CYLINDERS
QUALITY STEEL TANK, 12 BAR PRESSURE TESTED AND EXCLUSIVE VITREOUS ENAMEL COATING ENVIRONMENTALLY SOUND AND HIGHLY EFFICIENT THERMAL INSULATION PROTECH ANTI-CORROSION SYSTEM INTERNAL REGULATION THERMOSTAT FACTORY FITTED 1/2 T&P RELIEF VALVE DUAL POLE THERMAL CUT-OUTS
UNVENTED CONTROL KIT SUPPLIED WITH CYLINDER SPACE SAVING WALL FIXING SIMPLE INSTALLATION 10 YEAR TANK GUARANTEE (2 YEAR GUARANTEE ON ELECTRICAL COMPONENTS

WALL-HUNG ST 50

Nominal capacity Weight empty Weight full Voltage Power Reheat time (T= 50C) Max. Working Temp. Typical application* l kg kg V kW min. C 70 A/B

WALL-HUNG ST 80

WALL-HUNG ST 100
70 C a b c d e f g h mm mm mm mm mm mm mm mm

475 1/2

475 3/4

ST 100

575 3/4
**Typical application A: domestic usage <4/5 basins/2 sinks B: domestic usage <2 people (kitchen, shower) C: domestic usage <2 people (kitchen, bathrooms)
CLAS HE R, CLAS HE & GENUS HE SYSTEM
CLAS HE R 12, 18 & 24 CLAS HE 18, 24 & 30 GENUS HE 24 & 30
WALL-HUNG HIGH EFFICIENCY GAS REGULAR & SYSTEM BOILERS

COMPACT DIMENSIONS

QUIET OPERATION

SAVING

SEDBUK BAND A AVAILABLE IN SEVERAL OUTPUTS COMPREHENSIVE RANGE OF CONTROLS UNIQUE 'AUTO' FUNCTION OPTIMISES EFFICIENCY OF BOILER AND SYSTEM AUTO-DIAGNOSTIC SYSTEM SIMPLE MAINTENANCE WITH ACCESS FROM THE FRONT OF THE APPLIANCE
ANTI-FROST DEVICE BUILT-IN AUTOMATIC BY-PASS (SYSTEM) BUILT-IN SEVEN DAY DIGITAL TIME CLOCK (GENUS HE SYSTEM) INCLUDES CONNECTION KIT AND FILLING LOOP (SYSTEM) CLIP-ON CONNECTION KIT COVER AS STANDARD (SYSTEM)

CLAS HE SYSTEM

CLAS HE R
Coaxial exhaust - CLAS HE, GENUS HE

60/100: up to 12m (24kW) 80/125: up to 24m (24kW)
Twin pipe exhaust - CLAS HE, GENUS HE

80/80: up to 60m (24kW)

Coaxial exhaust - CLAS HE R

GENUS HE SYSTEM

LEGEND A: Central heating flow 22mm compression C: Gas inlet 15mm compression E: Central heating return 22mm compression F: Flue ( mm) F1: 60/100 - 80/125 F2: 80
Twin pipe exhaust - CLAS HE R

ARISTON THERMO GROUP

Ariston Thermo UK Ltd Ariston Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone Fax Technical Advice & Customer Service Fax techhelpdesk.uk@aristonthermo.com info.uk@aristonthermo.com Professional Team Limited Plaza 256 Blanchardstown Corporate Park 2 Ballycoolin Dublin 15 Telephone 1500 Fax 1501 Technical Advice & Customer Service Fax 1501 techhelpdesk.ie@aristonthermo.com info.ie@aristonthermo.com
8180 technical advice 9888 customer service

www.ariston.co.uk

www.aristonthermo.ie
In the interests of our customers, Ariston Thermo UK Ltd is continually developing these products to improve both performance and design. We therefore reserve the right to change specification without prior notice. This brochure is accurate at the date of printing. Consumer statutory rights are not affected.
WA 120 LGB - May 09 - Printed by Vario Press