Atag iSteel Series User manual

iSteel
INSTALLATION MANUAL
ISSUE 2015 – V1
FOR MORE INFORMATION GO TO:
www.atagheating.co.uk

INTRODUCTION
The corrosion resistant iSteel Un ented cylinder is made from Duplex Stainless Steel. It is highly insulated with
en ironmentally friendly foam enclosed in a rust resistant white steel case.
It is a ailable in Direct, and Indirect ersions in a family of 7 sizes from 90 - 300 litres. Twin Coil Indirect units are a ailable
in 5 sizes from 150 - 300 litres. There is also a range of slim-style units from 60 - 210 litres again in Direct and Indirect
ersions, please contact ATAG Heating Technology about slim-style units.
To help ensure compliance with the rele ant Water and Building Regulations all iSteel units are supplied complete with
the necessary safety and control de ices needed to connect to the cold water mains. In order to ensure high flow-rate
performance with minimum pressure drop e en in lower pressure areas, pre-set high quality controls ha e been selected.
iSteel is appro ed to demonstrate compliance with Water Regulations and Building Regulations G3 & Part L.
STORAGE PRIOR TO INSTALLATION
iSteel should be stored upright in a dry area and kept in its original packaging until immediately prior to installation.
INSTALLATION PREREQUISITES
This Cylinder should only be installed by a competent installer holding their G3 un ented qualification. The installation of
this product is also notifiable under the national Building Regulations.
ONCE COMPLETED T IS INSTRUCTION MANUAL IN ITS ENTIRETY S OULD BE LEFT WIT T E OME OWNER.
W AT IS BENC MARK?
Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are
pro ided with the correct equipment for their needs, that it is installed, commissioned and ser iced in accordance with
the manufacturer’s instructions by competent persons and that it meets the requirements of the appropriate Building
Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be
pro ided to the customer for future reference.
Installers are required to carry out installation, commissioning and ser icing work in accordance with the Benchmark
Code of Practice which is a ailable from the Heating and Hotwater Industry Council who manage and promote the
scheme. Visit
www.centralheating.co.uk
COLD INLET SET – W AT ARE T E CONNECTIONS?
EQUIPMENT SUPPLIED WIT T E CYLINDER
Cold Wa
ter Inlet Set
LOOSE
15 x 22mm Tundish
LOOSE
Temperature & Pressure Relief Val e
FITTED
Expansion Vessel
LOOSE
Expansion Vessel Bracket
LOOSE
Compression Nut Connection For Expansion Vessel
LOOSE
Immersion Heater(s)
-
dependant on size and configurati
on
LOOSE
Instruction Manual
LOOSE
Benchmark Log Book
–
at
the rear of this manual
LOOSE
WATER SUPPLY

iSteel is capable of deli ering o er 50 litres per minute when connected to a suitable mains supply. The high quality inlet
control set with its 3 bar operating pressure has been designed to make the most of what is a ailable howe er the
performance of any un ented system is only as good as the water supply.
In un ented systems both hot and cold ser ices are supplied simultaneously from the mains so the maximum possible
on-site water demand must be assessed and the water supply should be tested to ensure it can meet these requirements.
If necessary consult the local water supplier regarding the likely pressure and flow rate a ailability.
It is important that site pressure readings are taken under dynamic flow conditions, high pressures under zero flow
conditions are not necessarily indicati e of satisfactory performance. A minimum of 1.5 bar at 20 l/m flow should be
a ailable. Where mains inlet pressures are likely to exceed 16 bar then an additional upstream pressure reducing de ice
should be fitted.
A minimum of 22mm supply pipe-work should ideally be pro ided and existing 1/2” (15mm) cold mains pipe-work may
need to be upgraded. Hard water treatment should be considered in areas where content it greater than 200ppm, if
required adjust cylinder temperature to below 60 degrees.
SITING T E UNIT
iSteel can be positioned more or less anywhere in the dwelling but it should be remembered that for e ery 1 metre that
an outlet is abo e the iSteel, the pressure will be reduced by 0.1 bar. If siting outside the heated en elope of the dwelling
such as in a garage or outbuilding then frost protection should be pro ided and exposed pipework should be insulated.
iSteel must be supported on a flat base capable of supporting the weight of the cylinder when full. The minimum
recommended cupboard size is 650mm square.
It’s important that consideration is gi en to access for maintenance of the al es. The immersion heaters are 375 mm
long and access space should be pro ided for possible future replacement, also adequate access to remo e and re-install
the cylinder in the e ent of a problem.
SC EMATIC

GENERAL INSTALLATION
COLD MAINS PIPEWORK
Run the cold main through the building to the place where the iSteel is to be installed. Take care not to run the cold pipe
near hot water or heating pipe work so that the heat pick up is minimised. Identify the cold water supply pipe and fit an
isolating al e (not supplied).
A 22mm BS1010 stopcock can typically be used but a 22mm quarter turn full bore al e would be better as it does not
restrict the flow as much. Do not use “screwdri er slot” or similar al es.
Make the connection to the cold feed of the cylinder and incorporate a drain al e. Position the inlet control just ABOVE
the Temperature & Pressure Relief Val e (TPRV) mounted on the side of the cylinder. This ensures that the cylinder does
not ha e to be drained down in order to ser ice the inlet control set. Ensure that the arrow points in the direction of the
water flow.
Select a suitable position for the expansion essel. Mount it to the wall using the bracket pro ided. Use the compression
connection supplied to connect the essel into the cold water pipe adjacent to the cold feed point on the cylinder. There
must be no obstruction or flow restriction between the cylinder and the expansion essel.
BALANCED COLD CONNECTION
If there are to be showers, bidets or mono-bloc taps in the installation then a balanced cold supply is necessary. There is
a 22mm balanced connection on the inlet control set. All outlets in the house will be at 3 bar and thus automatically
balanced.
OT WATER PIPEWORK
Run the first part of the hot water distribution pipework in 22mm. This can be reduced to 15mm and 10mm as appropriate
for the type of tap etc. Your aim should be to reduce the olume of the hot draw off pipework to a practical minimum so
that the time taken for the hot water is as quick as possible.
Do not use mono-bloc mixer tap or showers if the balanced cold connection is not pro ided, the unit will back pressurise
and result in discharge. Ensure that the top of the essel is accessible for ser icing.
PRIMARY COIL CONNECTIONS (INDIRECT ONLY)
Compression connections are pro ided for the primary circuit which must be positi ely pumped. Primary flow and return
connections are interchangeable to suit site conditions without affecting reheat times. These connections are metric and
should be changed by the installer if using Irish size copper tube.
Sealed or ented primary circuits can be used, to comply with normal installation practice the primary pressure should
not exceed 3 bar although the coil in the iSteel is suitable for up to 7 bar if required. The boiler may be Gas, Electric, and
Oil etc. but must be under effecti e thermostatic control. Uncontrolled heat sources such as some AGA’s, back boilers,
solid fuel sto es, etc. may not be suitable please contact us for guidance. The two port zone al e should be installed into
the primary flow pipework leading to the coil flow inlet. The direction of flow arrow should be towards the primary flow
connection. On twin coil cylinders an extra thermostat boss is pro ided.
SECONDARY CIRCULATION
Where secondary circulation is required a circulator suitable for potable water should be used in conjunction with a non-
return al e to pre ent backflow. It may be necessary to incorporate an extra expansion essel into the circuit to
accommodate the increased system water olume in larger secondary circulation systems. Where off peak electrical
tariffs are being used then secondary circulation should be a oided. A secondary return boss is fitted as standard on 210,
250 & 300L. On smaller sizes tee into the cold feed pipe abo e the drain.
IMMERSION EATERS
As a requirement of Building Regulations the iSteel immersion heaters are fitted with thermal cut-out in addition to the
normal control thermostat. To help ensure correct replacement the immersion heaters ha e a special 1¾" thread. They
are of a low noise Incoloy construction and rated at 3 kW at 240 V. Replacement immersion heaters should be purchased
ia oursel es otherwise your guarantee may be affected. For commercial / hea y duty installations where constant usage
/ reheat is required Titanium immersion heaters must be fitted in order to comply with the warranty.
The ‘O’- ring on the head of the immersion heater should be correctly positioned and lubricated before fitting. Screw in
hand-tight until almost sealed then gently tighten as the ‘O’ rings will seal easily. The electrical supply to each immersion
heater/s must be fused at 13A ia a double pole isolating switch to BS 3456. The cable must be 2.5mm
2
heat resistant
(85°C HOFR) sheathed flex complying to BS 6141:1981 Table 8. Do not operate the immersion heater/s until the unit is
full of water. If any sterilisation liquid is in the cylinder do not operate the immersion heater/s as this will cause premature
failure. Electric to be supplied by a fused supply compliant with local regulations, and fitted by a qualified Part P
Electrician.

ENERGY CUT OUT AND CYLINDER T ERMOSTAT (INDIRECT ONLY)
As a requirement of Building Regulations the iSteel units are fitted with a thermal cut-out in addition to the normal control
thermostat. This unit should be fitted to the dedicated boss on the cylinder and wired to the two port al e controlling
the primary flow (see wiring diagram).
DISC ARGE ARRANGEMENT
This guidance is a ailable as a download of the G3 Appro ed Document from www.planningportal.go .uk.
The discharge from both the temperature relief and expansion relief al es can be joined together ia a 15mm end feed
tee.
It is important that any discharge water does not collect in this pipe-work and can run freely to the tundish.
The tundish should be mounted in a ertical and isible position located in the same space as the un ented hot water
storage system and be fitted as close as possible and within 600mm of the safety de ice e.g. the temperature relief al e.
The discharge pipe-work from the tundish must be routed in accordance with Part G3 of the Building Regulations.
The discharge pipe from the tundish should terminate in a safe place where there is no risk to persons in the icinity of
the discharge, be of metal and:
•Be at least one pipe size larger than the nominal outlet size of the safety de ice unless its total equi alent hydraulic
resistance exceeds that of a straight pipe 9m long i.e. discharge pipes between 9m and 18m equi alent resistance
length should be at least two sizes larger than the nominal outlet size of the safety de ice, between 18 and 27m
at least 3 sizes larger, and so on. Bends must be taken into account in calculating the flow resistance. An alternati e
approach for sizing discharge pipes would be to follow BS6700 Specification for design installation, testing and
maintenance of ser ices supplying water for domestic use within buildings and their curtilages.
•Ha e a ertical section of pipe at least 300mm long, below the tundish before any elbows or bends in the pipework.
•Be installed with a continuous fall.
•It is preferable for the discharge to be isible at both the tundish and the final point of discharge but where this is
not possible or practically difficult there should be clear isibility at one or other of these locations.
Examples of acceptable discharge arrangements are:
1. Ideally below the fixed grating and abo e the water seal in a trapped gulley.
2. Downward discharges at a low le el; i.e. up to 100mm abo e external surfaces such as car parks, hard standings,
grassed areas etc. are acceptable pro iding that where children play or otherwise come into contact with
discharges, a wire cage or similar guard is positioned to pre ent contact whilst maintaining isibility.
3. Discharges at a high le el; e.g. in to metal hopper and metal down pipe with the end of the discharge pipe clearly
isible (tundish isible or not) or onto a roof capable of withstanding high temperature discharges of water and
3m from any plastic guttering systems that would collect such discharges (tundish a ailable).
4. Where a single pipe ser es a number of discharges, such as in blocks of flats, the number ser ed should be limited
to not more than 6 systems so that any installation can be traced reasonably easily. The single common discharge
pipe should be at least one pipe size larger than the largest indi idual discharge pipe to be connected. If un ented
hot water storage systems are installed where discharges from safety de ices may not be apparent i.e. in dwellings
occupied by blind, infirm or disabled people, consideration should be gi en to the installation of an electronically
operated de ice to warn when discharge takes place.
Any queries with regard to discharge arrangement contact your local council planning office.
600
mm Max

TWIN COIL FORMAT
Indirect twin coil units can be installed in two separate formats:
•In a solar powered system with a backup boiler.
•In a system with two non-solar heat sources (normally two boilers).
With either format it is essential that the installation meets all current regulations including, in particular, the high limit
cut out requirements of Building Regulation G3.
UPPER COIL
This is connected to the boiler as per the instructions for a iSteel single coil cylinder with the high limit thermostat inserted
into the middle thermostat pocket and wired to control the supplied two port al e in either the primary flow or return
as indicated in the wiring instructions.
LOWER COIL – SOLAR VARIENT
In a solar system the lower coil is connected to the solar heat source. Either primary coil connection may be used for flow
or return. The solar cylinder sensor supplied is inserted into the lower thermostat pocket and the energy cut out into the
upper pocket. The ‘mechanical’ control thermostat is not normally utilised in a solar system. In systems where the panels
are abo e the cylinder then the energy cut out shall be wired so as to interrupt the power supply to the solar pump or
controller in the e ent of o er temperature.
In systems where the cylinder is abo e the panels then the energy cut out should be wired to a suitable two port al e
(not supplied) on the return pipe-work to the solar panel.
LOWER COIL – NON SOLAR VARIENT
This is connected to the additional boiler as per the instructions for a iSteel single coil cylinder with the high limit
thermostat inserted into the lower thermostat pocket and wired to control the supplied two port al e in either the
primary flow or return.

WIRING DIAGRAM 2 X 2 PORT ZONE VALVES (TYPICALLY ONEYWELL “S” PLAN)
WIRING DIAGRAM 3 PORT + 2 PORT ZONE VALVES (TYPICALLY ONEYWELL “Y” PLAN)
O
G/Y
G/Y
Br
G
Bl
C
E
2
C
E
2
1
Br
G
Bl
O
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
E
L=Li e, N=Neutral, C=Common, SL=Switched Li e, E=Earth
O
G/Y
G/Y
W
G
Bl
C
E
2
C
E
2
L
1
Br
G
Bl
O
1
2
3
4
5
6
N
3 Port
Mid Position
E
HTG
ON
DHW
ON
DHW
OFF
L
N
E
SL
1
2
3
1
2
3
L
N
E
N
L
N
E
2
3
2 Port (Heating)
Cutout
(combined) Duostat
2 Port (DHW)
PUMP
Wiring Centre
Room Stat
Programmer
Boiler
G=Grey, Bl=Blue, O=Orange, G/Y=Green/Yellow, Br=Brown
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
E
L
N
E
HTG
ON
DHW
ON
DHW
OFF
L
N
E
SL
2
3
1
2
3
L
N
E
N
L
N
E
2
3
Cutout (combined) Duostat
2 Port (DHW)
PUMP
Wiring Centre
Room Stat
Programmer
Boiler
W= White, G=Grey, Bl=Blue, O=Orange, G/Y=Green/Yellow, Br=Brown
L=Li e, N=Neutral, C=Common, SL=Switched Li e, E=Earth

COMMISSIONING SERVICING
FILLING
Check all connections for water tightness including any factory made connections such as the temperature and pressure
relief al e. The pressure in the expansion essel should be checked to ensure it is 3 bar (45PSI). The al e is of the car
tyre (Schrader) type.
The hot tap furthest away from the iSteel should be opened before filling the system to let air out.
The system should be flushed before use. The remaining taps should be opened in turn to expel air.
DIRECT UNITS
The system must be fully filled and flushed before switching on the power to the immersion heaters and allowing the
unit to heat up. The immersion heater is supplied pre-set at 55°C. Turning fully to + sets to approx. 65°C.
INDIRECT UNITS
Ensure the le er on the two port al e is set to the filling position and use the boiler manufacturers commissioning
instructions to fill the primary circuit. When full release the le er. Switch the programmer to Domestic Hot water (DHW)
and allow the unit to start to heat. Adjust the dial of the dual thermostat to between 55°C and 65°C as required.
STORAGE TEMPERATURE
A storage temperature of 60-65°C is normal for both direct and indirect iSteel. In hard water areas consideration should
be gi en to reducing this to 55-60°C. In many healthcare applications the guidance on Legionella control and safe water
deli ery temperatures will require storing the water at 60-65°C, distributing at 50-55°C and using thermostatic mixing
al es to control the final temperature. For details consult the NHS estates guidance on safe hot water temperatures.
SAFETY VALVE C ECKS
Any water coming from either the expansion relief al e or the temperature / pressure relief al e during heat up is
indicati e of a problem which needs to be identified and rectified. The temperature relief and expansion relief al es
should be fully opened, one at a time then both together allowing as much water as possible to flow through the tundish.
Check that your discharge pipework is free from debris and is carrying the water away without spillage o er the tundish
and release the al es and check that they re-seat properly.
GENERAL
Ser icing should only be carried out by competent installers and any spare parts used must be purchased from ATAG
Heating Technology UK Ltd. NEVER bypass any safety de ices or operate the unit without them fully operational.
DRAINING
Isolate from the electrical supply to pre ent the immersion heaters burning out. Isolate the unit from the cold mains.
Attach a hose to the draining tap ensuring it reaches to a le el below the unit (This will ensure an efficient syphon is set
up and the maximum amount of water is drained from the unit). Open the hot tap closest to the unit and open the
draining tap.
WARNING: WATER DRAINED OFF MAY BE VERY OT!
ANNUAL SERVICING
A competent installer should carry out the following checks on an annual basis, ideally at the same time as the annual
boiler ser ice.
1. The expansion relief al e on the inlet control set should be eased open allowing water to flow for 5 seconds. The
al e should then be closed making sure it resets correctly. Repeat this procedure with the pressure / temperature
relief al e. Always insure that the discharge pipework is allowing the water to drain away adequately. If not check
for blockages etc. and clear.
WARNING: T E WATER DISC ARGED MAY BE VERY OT!
2. Ensure that any immersion heaters that are fitted are working correctly and that they are controlling the water at
a temperature of between 55°C and 65°C.
3. Make sure the pressure in the expansion essel is charged to 3 bar. Turn off the water supply to the unit and open
a hot tap first. The al e on the expansion essel is a Schrader (standard car tyre) type. Air or CO2 can be used to
re-pressurise the expansion essel.
4. Remo e the head on the inlet control set by unscrewing, and clean the mesh filter within.
5. The benchmark ser ice record supplied within this manual should be updated at each ser ice.
YOUR GUARANTEE MAY BE VOID WIT OUT PROOF OF ANNUAL SERVICING. T E COMMISSIONING CERTIFICATE
SUPPLIED AT T E REAR OF T IS MANUAL S OULD ALSO BE COMPLETED BY T E INSTALLER.

GUARANTEE
The iSteel stainless steel essel carries a 25 year guarantee against faulty materials or manufacture pro ided that:
•It has been correctly installed as per this document and all the rele ant standards, regulations and codes of practice
in force at the time.
•It has not been modified in any way, other than by ATAG Heating Technology UK Ltd.
•It has not been misused, tampered with or subjected to neglect.
•It has only been used for the storage of potable water.
•It has not been subjected to frost damage.
•The unit has been ser iced annually.
•The benchmark ser ice record has been filled in after each annual ser ice.
•The guarantee period starts from the date of purchase and no registration is required.
•The extended guarantee is not transferable, and rests with the original householder.
•The system is fed from a public mains water supply.
•Store temperatures do not exceed 65°C.
•Installations are made only in the UK & Republic of Ireland.
•The water supply does not ha e a Chloride content greater than 250ppm.
•Units are not installed with uncontrollable heat sources (E.g. Wood Burning Sto es).
•For commercial / hea y duty installations where constant usage / reheat is required Titanium immersion heaters
must be fitted in order to comply with the warranty.
Please note that in oices for ser icing may be requested to pro e that the unit has been ser iced annually. All the
components fitted to / or supplied with the iSteel carry a 2 year guarantee. The guarantee starts when the cylinder is first
filled.
EXCLUSIONS – T INGS T E GUARANTEE DOES NOT COVER
The effects of scale build up. Any labour charges associated with replacing the unit or its parts. Any consequential losses
caused by the failure or malfunction of the unit.
GUIDANCE IN T E EVENT OF A PROBLEM
If you ha e a problem in the first year contact the plumber who fitted the unit. Thereafter contact the plumber who
carries out the annual ser icing for you. If your iSteel de elops a leak we will supply you with a new one. We ask for an
up-front payment to pre ent fraud.
We will require the original unit to be returned to us for inspection along with a copy of your ser ice record and
commissioning check sheet. If it is confirmed that it has failed within the terms of the warranty your upfront payment
will be refunded. If a component part fails within the two year guarantee period we will send you a new one again with
an upfront charge. Credit card details may be taken to pre ent fraud. We ask you to post the faulty part back to us within
one month by recorded deli ery. Once the part has been tested and pro en faulty a refund will be issued.
USER INSTRUCTIONS
Your stainless system is automatic in normal use and requires only annual ser icing. You should employ a competent
installer to perform the annual ser icing. Normally this is timed to coincide with the annual boiler ser ice.
IF WATER IS FLOWING FROM T E SAFETY VALVES T ROUG T E TUNDIS T IS INDICATES A
FAULT CONDITION AND ACTION IS NEEDED.
If this water is hot turn the boiler and / or the immersion heater off. Do not turn off the water until the discharge runs
cool. The discharge may also stop.
CALL A COMPETENT PLUMBER OUT TO SERVICE T E UNIT.
Tell them you ha e a fault on an un ented cylinder. We stock all the spare parts they may need.
PLEASE NOTE
Before making any claim/return on a iSteel Cylinder or Component, please make sure you ha e run through the following
fault finding options and check the offending item is less than one year old or the unit has been ser iced e ery 12 months
in line with the Benchmark Scheme.
Proof of this will be required when returning any part, also note all components are date stamped. Failure to do this will
result in any credit/claim being rejected.

FAULT FINDING INFORMATION
UNVENTED CYLINDER
Symptoms
Possible causes
Follow up action
Cylinder appears to leak
from within the case. Loose cylinder Connection.
Check all connection points including
immersion heaters to ensure integrity
of joint and remake any suspect joints.
Expansion valve operates
and water is visible at the
Tundish.
P
ossible fault at Pressure Reducing
al e.
Follow fault finding information for
Inlet Control Group.
Back pressure from the system.
Check all mixer type outlets are ser ed
by a balanced cold ser ice. Where not
re-pipe or install bespoke pressure
reducing al e to offending outlet.
Expansion valve operates
when cylinder is heated. Possible fault at Expansion Vessel.
Follow fault finding information for
Expansion Vessel.
Noise when operating tap
outlet. Insecure pipework. Increase the number of pipe clips.
Reduced Water flow.
External work to public mains.
Wait for works to be completed.
Debris from water mains.
Strip & Clean or replace Inlet Control
Group.
Pressure reducing al e sticking.
Strip & Clean or replace Inlet Control
Group.
No hot water available.
Immersion heater failure.
Follow fault finding information for
immersion heater.
Boiler failure.
Check operation of the boiler and its
controls.
EXPANSION VESSEL
Symptoms
Possible causes
Follow up action
Discharge of water from the
relief valve.
Expansion Vessel is too small.
Vessel needs resizing and installation by
appropriately qualified engineers.
Pre-charge set incorrectly on essel
installation.
Pre
-
charge requires setting while
system is de-pressurised according to
cylinder manufacturer’s
recommendations.
Membrane is ruptured and may require
replacement.
Replace membrane or entire essel.
Inspect Shrader al e for leaks or
damage.
Membrane may be partially
de-pressurised due to natural losses
and require re-pressurisation.
Re
-
pre
ssurise or consider replacement
depending on ae of essel and amount
of pressure lost. Inspect Shrader al e
for leaks or damage.
Leak from flange or water
connection.
Failure of Flange Plate.
Replace Flange Plate or entire essel.
Loss of torque in Fla
nge retaining bolts.
Re
-
tighten bolts as needed.
Ruptured membrane has caused
corrosion of essel body resulting in
pinhole leak.
Entire essel must be replaced. Inspect
Shrader al e for leaks or damage.
Vessel appears to be full of
liquid when system is cold. Membrane is de-pressurised.
Replace membrane or entire essel.
Inspect Shrader al e for leaks or
damage.
Water is discharged from
vessel when Shrader pin is
de-pressed for inspection of
air pressure.
Membrane is ruptured. Membrane or essel requires
replacement.

INLET CONTROL GROUP
Fault Finding Information

TUNDIS
Fault Finding Information

T&P RELIEF VALVE
Fault Finding Information

DUAL T ERMOSTAT
Fault Finding Information

IMMERSION EATER
Fault Finding Information

ENERGY CUT OUT
Fault Finding Information

CONDITIONS OF SALE
1. Definitions
“Buyer” means the person who accepts a quotation of the Company for the
sale of the Goods or whose order for the Goods is accepted by the Company
“Company” means ATAG Heating Technology UK Ltd.
“Conditions” means the terms and conditions of sale set out in this document
and any special terms and conditions agreed in writing by the Company and
the Buyer
“Contract” means the contract for the purchase and sale of the Goods
“Goods” means the goods which the Company is to supply and which the
Buyer agrees to buy in accordance with these conditions
“Price” means the price for the Goods including transport and insurance (if
any)
1.2 Any reference in these Conditions to any pro ision of a statute shall be
construed as a reference to that pro ision as amended re-enacted or extended
at the rele ant time
1.3 The headings in these Conditions are for con enience only and shall not
affect their interpretation
2. Basis of sale
2.1 The Company shall sell and the Buyer shall purchase the Goods in
accordance with:-
2.1.1 the Company’s quotation (if pro ided by the Company and accepted by
the Buyer); or
2.1.2 (if the Company does not submit a quotation and following a request or
purported order from the Buyer for Goods) in accordance with the Company’s
offer to the Buyer (if accepted by the Buyer) subject in either case to these
Conditions, which shall go ern the Contract to the exclusion of any other
terms, subject to which any such quotation or offer is accepted, or purported
to be accepted.
2.2 Any ariation to these Conditions (including any special terms and
conditions agreed between the parties) shall be inapplicable unless agreed in
writing by the Company
2.3 Any ad ice or recommendation gi en by the Company or its employees or
agents to the Buyer or its employees or agents as to the storage application or
use of the Goods which is not confirmed in writing by the Company is followed
or acted upon entirely at the Buyer’s own risk and accordingly the Company
shall not be liable for any such ad ice or recommendation which is not so
confirmed
2.4 Any typographical clerical or other error or omission in any sales literature
quotation price list acceptance of offer in oice or other document or
information issued by the Company shall be subject to correction without any
liability on the part of the Company
2.5 All specifications, drawings, particulars of weight and dimension and
performance data contained in any of the Company’s literature are
approximate only.
2.6 The Company reser es the right to impro e and/or modify any
specifications, designs and dimensions without notice.
2.7 For the a oidance of doubt nothing in these Conditions or any Contract
shall confer on any third party any benefit nor the right to enforce any term of
these Conditions or any Contract whether pursuant to the Contracts (Rights of
Third Parties) Act 1999 or otherwise
3. The Price and payment
3.1 The Price shall be either:-
3.1.1 the Company’s quoted price which shall only be alid for 30 days from its
date after which time the Price may be altered by the Company and shall be
subject to the Company re-quoting; or
3.1.2 where no price has been quoted the Price listed in the then current price
list of the Company sent by the Company to the Buyer from time to time.
3.2 Except as otherwise stated in the Company’s quotation or in any price list
of the Company or otherwise agreed in writing between the Buyer and the
Company, all prices are gi en by the Company to include the Company’s
charges for transport and insurance.
3.3 The Price and any other sums payable by the Buyer to the Company is
exclusi e of any applicable Value Added Tax, which the Buyer shall be
additionally liable to pay to the Company.
3.4 [Subject to any special terms agreed in writing between the Buyer and the
Company,] the Company may in oice the Buyer for the Price of the Goods on
or at any time after deli ery of the Goods, [or any instalment of the Goods]
unless the Goods are to be collected by the Buyer or the Buyer wrongfully fails
to take deli ery of the Goods, in which e ent the Company shall be entitled to
in oice the Buyer for the Price at any time after the Company has notified the
Buyer that the Goods are ready for collection or (as the case may be) the
Company has tendered deli ery of the Goods.
3.5 Sa e as otherwise agreed in writing, payment of the Price and VAT shall be
due within the agreed period from the date of the in oice without deduction
or set off. Time for payment shall be of the essence
3.6 If the Buyer fails to make any payment on the due date then without
prejudice to any other right or remedy a ailable to the Company the Company
shall be entitled to:
3.6.1 cancel the contract or suspend any further deli eries to the Buyer
3.6.2 appropriate any payment made by the Buyer to such of the Goods (or
the Goods supplied under any other contract between the Buyer and the
Company) as the Company may think fit (notwithstanding any purported
appropriation by the Buyer) and
3.6.3 charge the Buyer interest (both before and after any judgement) on the
amount unpaid at the rate of 8% per cent per annum abo e Barclays Bank PLC
base rate from time to time until payment in full is made (a part of a month
being treated as a full month for the purpose of calculating interest)
4. The Goods
4.1.1 The quantity and description of the Goods shall be as set out in the
Company’s quotation or in the Company’s offer (as the case may be); and
4.1.2 the quality and specification for the Goods shall be as set out in the
Company’s quotation or (where there is no quotation) in the Company’s
literature and brochure for the Goods in question.
4.2 The Buyer shall be responsible to the Company for ensuring the accuracy
of the terms of any order and any information supplied for the Company as to
its requirements (including but without limitation the use to which the Goods
will be put and any applicable specification) submitted by the Buyer and for
gi ing the Company any necessary information relating to the Goods within a
sufficient time to enable the Company to perform the Contract in accordance
with its terms
4.3 If the Goods are to be manufactured or any process is to be applied to the
Goods by the Company in accordance with a specification submitted by the
Buyer the Buyer shall indemnify the Company against all losses damages costs,
claims, demands, liabilities and expenses awarded against or incurred by the
Company in connection with or paid or agreed to be paid by the Company in
settlement of any claim for infringement of any patent copyright design trade
mark or other industrial or intellectual property rights of any other person
which results from the Company’s use of the Buyer’s specification or from
compliance by the Company with the Buyer’s instructions whether express or
implied.
4.4 No order which has been accepted by the Company may be cancelled by
the Buyer except with the agreement in writing of the Company and on terms
that any deposit paid shall not be repayable and that the Buyer shall indemnify
the Company in full against all loss (including loss of profit) costs (including the
cost of all labour and materials used) damages charges and expenses incurred
by the Company in carrying out any work in respect of the Goods or otherwise
as a result of cancellation
4.5 All designs, sketches, or similar articles supplied by or submitted in
confidence by the Company shall remain the property of the Company and
may not be disclosed by nor used by nor copied or otherwise reproduced by
the Buyer without the prior written consent of the Company.
5. Deli ery of Goods
5.1 Unless otherwise agreed in writing the Company shall deli er the Goods to
such deli ery address as is specified by the Buyer to the Company at such time
as the Goods or part thereof (as the case may be) are ready for deli ery.
5.2 The Buyer shall be responsible for offloading the Goods at the deli ery
address and shall ad ise the Company of any local or internal laws, byelaws or
rules relating to parking or loading of ehicles at the deli ery address.
5.3 The Buyer shall be responsible for ensuring that access to the deli ery
address is wholly by a road with a surface capable of withstanding the weight
and size of a ehicle carrying the Goods.
5.4 Any dates quoted for deli ery of the Goods are approximate only and the
Company shall not be liable for any delay in deli ery of the Goods howsoe er
caused Time for deli ery shall not be of the essence unless pre iously agreed
by the Company in writing The Goods may be deli ered by the Company in
ad ance of the Deli ery Date upon gi ing reasonable notice to the Buyer
5.5 Where the Goods are to be deli ered in instalments each deli ery shall
constitute a separate contract and failure by the Company to deli er any one
or more of the instalments in accordance with these Conditions or any claim
by the Buyer in respect of any one or more instalments shall not entitle the
Buyer to treat the Contract as a whole as repudiated
5.6 If the Buyer fails for any reason whatsoe er to take deli ery of the Goods
or fails to gi e the Company adequate deli ery instructions at the time stated
for deli ery (otherwise than by reason any cause beyond the Buyer’s
reasonable control or by reason of the Company’s fault) then without
prejudice to any other right or remedy a ailable to the Company the Company
may:
5.6.1 store the Goods until actual deli ery and charge the Buyer for the
reasonable costs (including insurance) of returning the Goods to the
Company’s premises, storage and for transport, packaging and insurance for
re-deli ery of the Goods; or
5.6.2 sell the Goods at the best price readily obtainable and (after deducting
all reasonable storage and selling expenses) account to the Buyer for the
excess o er the Price or charge the Buyer for any shortfall below the Price
5.8 Goods may not be returned to the Company except by prior written
permission of an authorised officer of the Company and such return shall be
subject to payment by the Buyer of handling and re-stocking charges,
transport and all other costs incurred by the Company
6. RISK AND RETENTION OF TITLE
6.1 goods supplied by the Company shall be at the Buyer’s risk immediately
upon deli ery to the Buyer or into custody on the Buyer’s behalf or to the
Buyer’s Order. The Buyer shall effect adequate insurance of the goods against
all risks to the full in oice alue of the goods, such insurance to be effecti e
from the time of deli ery until property in the goods shall pass to the Buyer as
hereinafter pro ided.
6.2 property in the goods supplied hereunder will pass to the Buyer when full
payment has been made by the Buyer to the Company for :-
6.2.1 the goods of the subject of this contract.
6.2.2 all other goods the subject to of any other contract between the Buyer
and the Company which, at the time of payment of the full price of the goods
sold under this contract, ha e been deli ered to the Buyer but not paid for in
full.
6.3 until property in the goods supplied hereunder passes to the Buyer in
accordance with paragraph (3) abo e.
6.3.1 the Buyer shall hold the goods in a fiduciary capacity for us and shall store
the same separately from any other goods in the Buyer’s possession and in a
manner which enables them to be identified as our goods.
6.3.2 the Buyer shall immediately return the goods to the Company should the
Companies authorised representati e so request. All the necessary incidents
associated with a fiduciary relationship shall apply.
6.4 the Buyer’s right to possess the goods shall cease forthwith upon the
happening of any of the following e ents, namely :-
6.4.1 if the Buyer fails to make payment in full for the goods within the time
stipulated in clause 3 hereof.
6.4.2 if the Buyer, not being a company, commits any act of bankruptcy, makes
a proposal to his or her creditors for a compromise or does anything which
would entitle a petition for a Bankruptcy Order to be presented.
6.4.3 if the Buyer, being a company, does anything or fails to do anything which
would entitle an administrator or an administrati e recei er or a recei er to
take possession of any assets or which would entitle any person to present a
petition for winding up or to apply for an administration order.
6.5 the Buyer hereby grants to the Company an irre ocable licence to enter at
any time any ehicle or premises owned or occupied by the Buyer or in the
possession of the Buyer for the purposes of repossessing and reco ering any
such goods the property in which has remained in the Company under
paragraph (2) abo e. The Company shall not be responsible for and the Buyer
will indemnify the Company against liability in respect of damage caused to
any ehicle or premises in such repossession and remo al being damaged
which it was not reasonably practicable to a oid.
6.6 notwithstanding paragraph (4) hereof and subject to paragraph (5) hereof,
the Buyer shall be permitted to sell the goods to third parties in the normal
course of business. In this respect the Buyer shall act in the capacity of the
Companies commission agent and the proceeds of such sale :-
6.6.1 shall be held in trust for us in a manner which enables such proceeds to
be identified as such, and :
6.6.2 shall not be mixed with other monies nor paid into an o erdrawn bank
account. The Company, as principal, shall remunerate the Buyer as
commission agent a commission depending upon the surplus which the Buyer
can obtain o er and abo e the sum, stipulated in this contract of supply which
will satisfy the Company.
6.7 in the e ent that the Buyer shall sell any of the goods pursuant to clause
(5) hereof, the Buyer shall forthwith inform the Company in writing of such
sale and of the identity and address of the third party to whom the goods ha e
been sold.
6.8 if, before property in the goods passes to the Buyer under paragraph (3)
abo e the goods are or become affixed to any land or building owned by the
Buyer it is hereby agreed and declared that such affixation shall not ha e the
effect of passing property in the goods to the Buyer. Furthermore if, before
property in the goods shall pass to the Buyer under paragraph (3) hereof, the
goods are or become affixed to any land or building (whether or not owned by
the Buyer), the Buyer shall:-
6.8.1 ensure that the goods are capable of being remo ed without material
injury to such land or building.
6.8.2 take all necessary steps to pre ent title to the goods from passing to the
landlord of such land or building.
6.8.3 forthwith inform the Company in writing of such affixation and of the
address of the land or building concerned. The Buyer warrants to repair and
make good any damage caused by the affixation of the goods to or their
remo al from any land or building and to indemnify the Company against all
loss damage or liability the Company may incur or sustain as a result of
affixation or remo al.
6.9 in the e ent that, before property in the goods has passed to the Buyer
under paragraph (3) hereof, the goods or any of them are lost, stolen,
damaged or destroyed :-
6.9.1 the Buyer shall forthwith inform the Company in writing of the fact and
circumstances of such loss, theft, damage or destruction.
6.9.2 the Buyer shall assign to the Company the benefit of any insurance claim
in respect of the goods so lost, stolen, damaged or destroyed.
7. Warranties and liability - FOR PROUCTS INSTALLED IN THE UK ONLY
7.1 Subject to the following pro isions, the Company warrants that the Goods
will be free from defects in material and workmanship for a period of 24
months from their deli ery to the Buyer, unless a period of different duration
is specified in the product installation instructions in respect of that product
and/or its specific warranty terms, or specified components thereof.
7.2 The warranty in clause 7.1 is gi en by the Company subject to the following
conditions:
7.2.1 the Company shall be under no liability in respect of any defect in the
Goods arising from any information drawing design or specification supplied
by the Buyer.
7.2.2 the Company shall be under no liability in respect of any defect arising
from fair wear and tear wilful damage negligence abnormal working
conditions failure to follow the Company’s instructions (whether oral or in
writing) misuse or alteration or repair of the Goods without the Company’s
appro al
7.2.3 the Company shall not be liable for any consequential damage(s)
occurred to the Buyer, or the Buyer’s customer’s property, caused by failure
of the Company’s Goods. Any such costs incurred shall be claimed by the Buyer
or the Buyer’s customer’s insurance party.
7.2.4 the abo e warranty does not extend to parts materials equipment not
manufactured by the Company in respect of which the Buyer shall only be
entitled to the benefit of any such warranty or guarantee as is gi en by the
manufacturer to the Company.
7.3 The Buyer shall not make any statement or representation or gi e any
warranty to any third party in respect of any Goods other than in the terms
made or gi en by the Company to the Buyer in these Conditions nor shall the
Buyer ha e any authority to commit the Company to pro ide any ser ice in
relation to the Goods. The Buyer shall indemnify the Company against all
losses, damages, costs, claims, demands, liabilities and expenses incurred or
suffered by the Company in respect of or arising out of any such statement,
representation or warranty made or gi en by the Buyer in contra ention of
this clause.
7.4 The Company’s liability to the Buyer for -
7.4.1 death or injury resulting from its own or that of its employees’ agents’ or
subcontractors’ negligence; and
7.4.2 damage suffered by the Buyer as a result of any breach of the obligations
implied by Section 12 of The Sale of Goods Act 1979 shall not be limited
7.5 Subject as expressly pro ided in these Conditions all other warranties
conditions or terms whether implied by statute or common law or otherwise
are hereby excluded
7.6 If the Company fails to deli er the Goods for any reason other than any
cause beyond the Company’s reasonable control or the Buyer’s fault then the
Company shall only be liable to the Buyer for and the Company’s liability shall
be limited to the excess (if any) of the cost to the Buyer (in the cheapest
a ailable market) of similar goods to replace those not deli ered o er the Price
of the Goods
7.7 The Buyer shall examine all Goods deli ered forthwith following deli ery.
Any claim by the Buyer which is based on any defect in the quality or condition
of the Goods or their failure to correspond with specification shall (whether or
not deli ery is refused by the Buyer) be notified to the Company within 7 days
from the date of deli ery or (where the defect or failure was not apparent on
reasonable inspection) within a reasonable time after disco ery of the defect
or failure If deli ery is not refused and the Buyer does not notify the Company
accordingly the Buyer shall not be entitled to reject the Goods and the
Company shall ha e no liability for such defect or failure and the Buyer shall
be bound to pay the Price as if the Goods had been deli ered in accordance
with the Contract In no e ent shall the Buyer be entitled to reject the Goods
on the basis of any defect or failure which is so slight that it would be
unreasonable for the Buyer to reject them
7.8 The Company shall be entitled to examine any Goods which are the subject
of any claim by the Buyer and to remo e such Goods or any part thereof for
testing. No tests carried out by the Buyer will be recognised by the Company
unless carried out strictly in accordance with a method pre iously agreed by
the Company as being suitable for the purpose.
7.9 Where any alid claim in respect of any of the Goods which is based on any
defect in the quality or condition of the Goods or their failure to meet
specification is notified to the Company in accordance with these Conditions
the Company shall be entitled to repair or replace the Goods (or the part in
question) free of charge or at the Company’s sole discretion refund to the
Buyer the Price (or a proportionate part of the Price) but the Company shall
ha e no further liability to the Buyer.
7.10 Where failed Goods are returned to the Company and subsequently
found to ha e no fault found or failed due to reason(s) outside these terms
and conditions, the Company reser es the right to claim any subsequent costs
entailed, from the Buyer.
7.11 Without prejudice to the pro isions of clauses 7.5, 7.6, 7.7, 7.9 and 7.10
the entire liability of the Buyer under or in connection with the Contract shall
not exceed the Price of the Goods.
7.12 The Company shall not be liable to the Buyer or be deemed to be in
breach of the contract by reason of any delay in performing or any failure to
perform any of the Company’s obligations in relation to the Goods if the delay
or failure was due to any cause beyond the Company’s reasonable control
Without limiting the foregoing, the following shall be regarded as causes
beyond the Company’s reasonable control:
7.12.1 act of god, explosion, flood, tempest, or inclement weather, fire or
accident;
7.12.2 war or threat of war, sabotage, insurrection, ci il disturbance or
requisition;
7.12.3 acts, restrictions, regulations, by-laws, prohibitions or measures of any
kind on the part of any Go ernmental, Parliamentary or Local Authority;
7.12.4 imports or exports, regulations or embargos;
7.12.5 strikes, lockouts or other industrial action or trade disputes (whether
employees of the Company or of a third party);
7.12.6 difficulties in obtaining raw materials, labour, fuel, parts or machinery;
7.12.7 power failure, failure of tele-communications lines, failure or
breakdown of plant, machinery or ehicles;
7.12.8 theft or malicious damage;
7.12.9 defaults for any reason whatsoe er of suppliers or sub-contractors of
the Company;
7.12.10 incompleteness or inaccuracy of any technical information which it is
the responsibility of the Buyer to pro ide
8. Insol ency of the Buyer
8.1 This clause applies if:
8.1.1 the Buyer makes any composition or oluntary arrangement with its
creditors (being an indi idual or firm) becomes bankrupt or (being a company)
becomes subject to an administration order or seeks an out of court route into
administration or goes into liquidation (otherwise than for the purposes of
amalgamation or reconstruction) or a moratorium comes into force in respect
of the Buyer (within the meaning of the Insol ency Act 1986); or
8.1.2 an encumbrancer takes possession or a recei er or manager or
administrati e recei er or administrator is appointed of any of the property or
assets of the buyer; or
8.1.3 the Buyer ceases or threatens to cease to carry on business or
8.1.4 the Company reasonably apprehends that any of the e ents mentioned
abo e is about to occur in relation to the Buyer and notifies the Buyer
accordingly
8.2 If this clause applies then without prejudice to any other right or remedy
a ailable to the Company the Company shall be entitled to stop any Goods in
transit, cancel the Contract or suspend any further deli eries under the
Contract without any liability to the Buyer and if the Goods ha e been
deli ered but not paid for the Price shall become immediately due and payable
notwithstanding any pre ious agreement or arrangement to the contrary
9. Health and Safety Information
The Buyer agrees and undertakes with the Company to ensure that the
pro isions of all instruction manuals including health and safety instructions
and any other information or document relating to the use of the Goods
pro ided by the Company with the Goods are fully implemented so as to
ensure so far as is reasonably practicable that the Goods will be safe and
without risk to health at all times, when it is being installed, used, cleaned or
maintained by a person at work and that all such manuals instructions or
documents remain with the Goods.
10. General
10.1 The Contract is personal to the Buyer which may not assign or dispose of
any of its rights or obligations or otherwise delegate any of its obligations
under the Contract without the written consent of the Company.
10.2 The Company shall be entitled to assign its rights and obligations under
the Contract and to sub-contract or otherwise delegate any of its obligations
under the Contract.
10.3 Any notice required or permitted to be gi en by either party to the other
under these Conditions shall be in writing including a facsimile addressed to
that other party at is registered office or principal place of business or such
other address as may at the rele ant time ha e been notified pursuant to this
pro ision to the party gi ing the notice and shall be deemed to ha e been
recei ed by the party to whom it was addressed, if sent by facsimile upon its
transmission if during a normal business day and otherwise on the next
business day and if sent by post, 72 hours after posting.
10.4 No wai er by the Company of any breach of the Contract by the Buyer
shall be considered as a wai er of any subsequent breach of the same or any
other pro ision 10.5 If any pro ision of these Conditions is held by a Court or
other competent authority to be in alid or unenforceable in whole or in part
the alidity of the other pro isions of these Conditions and the remainder of
the pro ision in question shall not be affected thereby
10.6 The Contract and these Conditions shall be go erned by the laws of
England
10.7 The parties hereby submit to the non-exclusi e jurisdiction of the English
courts
10.8 The Buyer shall indemnify the Company for all costs and damages,
including attorneys’ fees, suffered by the Company as a result of the Buyers
actual or threatened breach of these terms and conditions.
11. Information
The Company will pro ide the Buyer on request with information as to the
proper and safe use of the Goods and the Buyer shall at all times obey and
comply with the Company’s instructions or other information relating to the
use of the Goods
Specific product warranty terms are a ailable on request.
Terms & Conditions may change without prior notice being gi en, for up to
date Terms please isit www.atagheating.co.uk.

Essential Cylinder Information
Maximum Water Supply Pressure – 16 Bar
Immersed Electric Element Rating – 3kW
Operating Pressure – 3 Bar
Expansion Vessel Charge Pressure – 3 Bar
Expansion Val e Setting – 6 Bar
Set Opening Pressure Of Combined T&P Val e – 7 Bar
Storage Capacity – See Cylinder Info Table
Mass Of Unit – See Cylinder Data Table
Immersion Heater Length – 14”
Maximum Primary Pressure (Indirect Only) – 3 Bar
Cylinder Data Table Capacity Weight (Kg) Empty
iSteel 90 Direct 90 21
Indirect 88 27
iSteel 120 Direct 120 25
Indirect 118 31
iSteel 150
Direct 150 30
Indirect 148 35
Twin Coil 147 40
iSteel 180
Direct 180 32
Indirect 178 39
Twin Coil 177 42
iSteel 210
Direct 210 37
Indirect 208 44
Twin Coil 207 47
iSteel 250
Direct 250 44
Indirect 248 50
Twin Coil 247 53
iSteel 300
Direct 300 50
Indirect 298 57
Twin Coil 297 62
ATAG eating Technology UK Ltd
47 Castle Street, Reading, Berkshire, RG1 7SR
Tel: [phone], Web: www.atagheating.co.uk