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Coral AquanoxOpen Vented Thermal Store to provide mains pressure domestic hot water
Elson is part of the BDR Thermea group, the UK’s leading
manufacturer of hot water solutions utilising unvented
cylinder and thermal store technology.
Our new range of open vented thermal store units are the
latest addition to our comprehensive portfolio of products.
Satisfying all of your hot water needs the new Coral Aquanox
thermal store range provides the best possible levels of hot
water comfort, powerful mains pressure showering and fast
filling baths in the safest, most efficient manner.
The Coral Aquanox has been designed and manufactured
using the most advanced technology available. It incorporates
a Duplex stainless steel cylinder for maximum strength
and corrosion resistance, CFC/HCFC-free injected foam
insulation to ensure the best possible heating efficiency, and
a revolutionary, newly designed, domestic hot water coil that
makes full use of the stored heat available and gives excellent
flow rate performance.
Being part of one of Europe’s leading heating groups,
Elson also offers you first class customer service, reliable
specification advice on product selection and system type,
a fully indemnified design service and installation support
and guidance on how to get the optimum performance
from your system.
Designed to give maximum performance,
efficiency and economy
Duplex stainless steel cylinder giving maximum
strength and corrosion resistance
Revolutionary new coil design giving improved
flow rates and maximising energy utilisation
Flow rates of up to 25 litres per minute
High levels of insulation for low standing heat
losses and greater economy
Integral feed and expansion tank as standard
Long-life Superloy ‘L shaped’ immersion heater
Fully indemnified design service available
Electrical protection rated at IPX2
Ozone depletion factor of zero
Global warming potential of 3.1
Products tested and compliant with
EN 60335-1:2002 and EN 60335-2-21:2003
Fully compliant with UK Water Regulations and
Building Regulations Part L
Five year warranty with on-site service support
Coral AquanoxOpen Vented Thermal Store to provide mains pressure domestic hot water
2
IntroductionThe Coral Aquanox is an open vented thermal store that
provides mains pressure domestic hot water. It does so by
using a low pressure open vented hot water storage system.
This means you receive all the benefits of mains pressure hot
water but without the constraints associated with installing an
unvented cylinder.
How a Thermal Store worksThe hot water storage cylinder in the Coral Aquanox is
filled with water via the integral feed and expansion tank.
The water is then heated directly by an immersion heater
or indirectly by a heating coil within the cylinder that is
connected to a central heating system. This stored hot
water is referred to as a ‘thermal store’.
Mains cold water is then heated as it passes through
the purpose designed domestic hot water coil, providing
instantaneous hot water at the taps. The temperature of
the domestic hot water is controlled by a WRAS and TMV2
approved thermostatic mixing valve with a rapid fail-safe
function to ensure safety and improve economy.
SitingThe thermal store is designed to be floor standing and can
be installed in any frost free location within the dwelling
without it affecting its performance.
As the Coral Aquanox is an open vented appliance it is not
subject to the requirements of Section G3 of the Building
Regulations relating to unvented water heaters, so therefore
can be installed by any competent installer. Furthermore
it means that it does not require the installation of a safety
discharge pipe going to the outside of the dwelling to
accommodate the discharge from a temperature and
pressure relief valve. For the ultimate in flexible site options
we also offer a manual fill version of the Coral Aquanox.
3
MADE IN THE UK5 YEAR GUARANTEE
Coral AquanoxOpen Vented Thermal Store to provide mains pressure domestic hot water
4
Cylinder ConstructionThe Coral Aquanox thermal store range is constructed from
strong and lightweight Duplex stainless steel which offers a
superior resistance to corrosion, particularly in aggressive
water areas. Duplex stainless steel ensures the longest
possible working life for every thermal store.
InstallationThe Coral Aquanox has been designed with the installer in
mind. All plumbing and electrical connections are located at
the front of the unit to give easy access for both installation
and servicing. All plumbing connections are 22mm
compression.
With an integrated feed and expansion tank the thermal store
can be installed in any frost free environment, including an
airing cupboard, loft, cellar, utility room or even in a garage.
High Efficiency and Maximum EconomyTo minimise the standing heat loss from the cylinder and
therefore maximise economy, a 60mm thick layer of high
performance polyurethane foam fills the space between the
inner vessel and outer casing. This also ensures the unit will
comply with pending European Legislation that is due to be
implemented in the near future.
To demonstrate just how important we view the subject of
heating efficiency and the need to reduce heat wastage to
improve economy, the Coral Aquanox is supplied with an
innovative insulation casing to reduce heat loss through the
blending valve.
The base of the unit is also fully insulated and stands on three
moulded feet to minimise heat loss to the supporting floor.
Immersion heaters and controls are fully integrated with no
large external bosses to radiate heat.
Technical Information for Heating System Designers and SAP AssessorsThe standing heat loss data from a thermal store should
not be directly compared with heat loss data from either
unvented or vented cylinders as they are treated differently
in SAP. The SAP calculator takes account of these different
types of store and applies various correction factors to reflect
the different ways the hot water is generated. SAP assessors
should input the standing heat loss data given on the following
page into the SAP calculator. The polyurethane foam
insulation is CFC/HCFC free and has an ozone depletion
factor of zero and a global warming potential of 3.1.
5
Dimensions and ordering
Specifier Advice Line 0844 335 [email protected]
Coral Aquanox Indirect Coral Aquanox Direct
Model – Indirect Autofill 120ti 150ti 175ti 210ti
Part code 93:080:017 93:080:021 93:080:025 93:080:029
Model – Indirect Manual Fill 120ti 150ti 175ti 210ti
Part code 93:080:018 93:080:022 93:080:026 93:080:030
Model – Direct Autofill 120td 150td 175td 210td
Part code 93:080:001 93:080:005 93:080:009 93:080:013
Model – Direct Manual Fill 120td 150td 175td 210td
Part code 93:080:002 93:080:006 93:080:010 93:080:014
Model 120ti 150ti 175ti 210ti
Capacity (litres) 120 150 175 210
Dimension (mm) A 1111 1274 1450 1677 B 516 626 801 1033
Weight (kg) Empty 43 53 57 67 Full 163 203 232 277
Standing heat loss per day (kWh/24h) 1.26 1.46 1.61 1.80
Model 120td 150td 175td 210td
Capacity (litres) 120 150 175 210
Dimension (mm) A 1111 1274 1450 1677 B 516 626 801 1033 C – 724 900 1127
Weight (kg) Empty 38 48 52 63 Full 158 198 227 273
Standing heat loss per day (kWh/24h) 1.26 1.46 1.61 1.80
316450
A B
20°27°
620
650
Ø580
310 360450
A C B
20°27°
620
650
Ø580
310
6
Specification and installation
SpecificationNominal Capacities 120, 150, 175 and 210 litres in all models and fill options.
Element Long-life Incoloy 825 sheathed element, incorporated into an easily-removable heater plate, should replacement be necessary. Rated 3kW @ 240V.
Outer Casing White plastic-coated corrosion-proofed steel with grey high impact thermoplastic moulded top and bottom covers.
Thermal Insulation CFC/HCFC-free (ODP ZERO) fire retardant expanded polyurethane. 60mm thickness. GWP 3.1 (Global Warming Potential).
Inner Container Duplex stainless steel, pressure tested to 15 bar.
Primary Coil 22mm diameter stainless steel. Rated to 10 bar. Purpose designed 1.1m2 coil for improved performance.
Thermostat Capillary type thermostat & thermal cut-out on all models.
Direct Models: Element thermostat adjustable 12°C to 85°C. Manual resettable thermal cut-out, set to 96°C.
Indirect Models: Primary thermostat adjustable 12°C to 85°C. Manual resettable thermal cut-out, set to 96°C.
Approvals Nemko approved. Kiwa approved to UK Water Supply Regulations. Manufactured in the UK in an ISO 9001:2008, ISO 14001:2004 and BS OHSAS 18001:2007 registered factory.
Installation Open vented mains pressure hot water thermal store units do not require safety discharge pipework and do not fall under the same regulations as unvented cylinders.
Fixing Feet on bottom moulding for floor mounting.
Plumbing Connections Cold feed and domestic hot water flow – 22mm.
Fittings Compression nuts and olives included.
Primary Coil 22mm compression fittings.
Blending Valve Factory set at 55ºC. Adjustable from 38ºC to 65ºC.
Operating Temperature Recommended 75°C to 85ºC. Adjustable from 12°C to 85°C.
Water Expansion 6 litre header tank supplied with 120-175 litre models. 2 x 6 litre header tanks supplied with 210 litre model with copper ball valve arrangement.
Minimum Water Supply Requirements If there are any doubts about water supply pressure or flow rates please contact our Specification Advice Team to discuss.
Compatible Boilers Electric, gas or oil fired – open vent or sealed system type, fitted with integral control thermostat and cut-out. A pumped supply to the primary coil is required.
Visual Overflow Indicator 22mm compression inlet to 28mm compression outlet.
ElectricalDirect Models: Connection is to the combined thermostat/thermal cut-out, housed within the integrated controls housing. The electrical supply must be permanently connected via a double pole linked isolating switch with a minimum break capacity of 13A.
Indirect Models: Controls should be wired to the boiler, programmer etc. in accordance with the control scheme being used.
All electrical wiring must conform to the latest IEE Wiring Regulations.
GuaranteeOn-site service support including parts and labour for 12 months from date of installation. After the initial 12 months, a guarantee will apply for a further four years for the stainless steel inner vessel only. During this four year period, in the event of a cylinder leak, a replacement product will be issued provided that the replacement is carried out by one of our heateam engineers, for which reasonable labour charges will apply.
The guarantee is valid provided that:
• Ithasbeencorrectlyinstalledaspertheinstructionscontainedintheinstructionmanual and all relevant Codes of Practice and Regulations in force at the time of installation.
• TheBenchmarkChecklisthasbeencompleteduponcommissioningandtheBenchmark Service Record is completed for each service.
• Ithasnotbeenmodifiedinanyway,otherthanbyElson.
• Ithasnotbeenfrostdamaged.
• Ithasnotbeentamperedwithorbeensubjectedtomisuseorneglect.
• Thefaultisnotscalerelated.
• Within60daysofinstallationtheusercompletesandreturnsthecertificatesupplied along with the proof of purchase to register the product.
• IthasbeeninstalledintheUnitedKingdom.
• Thefaultisnotcausedbyhighchloridelevelsinthewatersupplyorincorrectdisinfection methods. Maximum permissible chloride level 200mg/l (PPM).
Evidence of purchase and date of supply may be required. The guarantee is transferable. This guarantee does not affect your statutory rights.
Specifier Advice Line 0844 335 [email protected]
MADE IN THE UK5 YEAR GUARANTEE
Application Indirect Direct
Bedsit 1 shower 120ti 120td
1 bedroom 1 shower 120ti 120td 1 bath 120ti 150td
2 bedroom 1 bath 150ti 150td 1 bath & 1 shower 150ti 175td
3 bedroom 1 bath & shower 150ti 175td 2 baths 210ti 210td
4 bedroom 1 bath & shower 175ti 210td 2 baths 210ti 210td
Selection guide
Sizing in accordance with BS6700.This selection chart is for guidance only. Hot water requirements will vary dependent on bath size and usage patterns.Please contact the Specification Advice Team for further advice.
Typical installation schematics
7
Specifier Advice Line 0844 335 [email protected]
AAV GasCWS
P2 metres isrequired forexpansion in
pipework beforenearest cold
draw-off
Where expansion downthe mains is not possible
fit an expansion vessel with acapacity not less than 1000ml
Indirect model
CWS
Where expansion downthe mains is not possible
fit an expansion vessel with acapacity not less than 1000ml
2 metres isrequired forexpansion in
pipework beforenearest cold
draw-off
Direct model
The hydraulic schematics within this document are for guidance only and do not constitute system design. Some components may not be detailed for clarity purposes.
Lock Shield Valve
Strainer
Double Reg. Valve
Drain Cock
Angle pattern Drain Cock
Expansion Vessel
AAV
Flow Setter
Automatic Bypass Valve
Safety Valve
T & P Valve
2 Port Motorised Valve
Automatic Air Vent
P
S
Pressure Gauge Assembly
Tundish
Temperature Sensor
Air Separator
Combined Isolation & Check Valve with Thermometer
Aqua Aqua Stat
Immersion Heater
Room Stat
Programmer
Anti-Gravity Dip
Safety Discharge Vessel
Pump
Pressure Reducing Valve
Isolation Valve
Single Check Valve
Thermostatic Mixing Valve
Double Check Valve
Thermostatic Radiator Valve
Radiator Lock Shield Valve
Filling Loop
Flexible Connection
Flow Meter
Stop Cock
AGD
Key
Part no. 93 900 028 Issue 1
Elsy & Gibbons, Fifers Lane, Norwich, Norfolk NR6 6XB
T: 0844 335 8819
F: 0844 736 5505
W: elsonhotwater.co.uk
heateam is Elson’s very own service division. With us on your side,
you can be sure that your customers are in the very best hands.
Totally committed to quality and safety, heateam is open 7 days
a week, for 363 days a year, and offers:
• Dedicated Trade Advice Line
Our helpful and qualified specialists are always on hand to help
you with even the most complex technical query.
• Installer Priority Call-Outs
Our 280 strong team of specifically trained expert heating
engineers covers the UK, no one is better qualified to look
after Elson’s products for the duration of the guarantee.
• Fully Stocked Vans
A nationwide fleet of vans, fully stocked with spare parts –
meaning we can repair our appliances on the first visit in
95% of call-outs.
• Exclusive Service Plans
heateam also offer Elson’s customers a range of exclusive
annual service plans.
Opening Times: Monday-Friday 8am-6pm, weekends and
Bank Holidays* 8.30am-2pm.
Simply call 0844 871 1535 or visit our website at
www.heateam.co.uk
*Excluding Christmas Day and New Year’s Day.
NewDesign is a bespoke design service from the BDR Thermea
Group for residential developments.
Designs for heating and water services systems are fully
indemnified and tailored to suit individual development needs.
Our professional engineers deliver quality system designs in
accordance with:
• Legislationrequirements
• Recognisedgoodpracticestandards
Our design service has been tested and proven by many national
housing developers and our project database contains more than
15,000 house type designs.
Design layouts are generated using the latest computer software
and can be issued in either hard copy or electronic format for ease
of data exchange.
The pace of product development is such that we reserve the right to change product specifications without notice. We do, however, strive to ensure that all information in this catalogue is accurate at the time of publication.