gledhill 120IND, 210IND, 400IND, 300IND Design, Installation & Servicing Instructions

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Design, Installation & Servicing Instructions

Models covered in this manual

Stainless Lite Direct Buffer 90-400 litres

Stainless Lite Indirect Buffer 120-400 litres

Stainless Lite Flexible Buffer 90-400 litres

StainlessLite Buffer Store

Stainless steel store for use with heat pumps and boilers

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These instructions should be read in conjunction with the installation/ servicing instructions issued by the manufacturer of the heat source being used.

Any installation must be in accordance with the relevant requirements of the Gas Safety Regulations, Building Regulations, I.E.E. Wiring Regulations and the Water Fitting Regulations (England and Wales) or Water Byelaws (Scotland). It should be read in accordance with the relevant recommendations of the following: BS 6798; BS EN 12828, BS EN 12831, BS EN 14336; BS 5546; BS 5440:1; BS 5440:2; CP 331:3 BS EN 806-1 to 5, BS EN 8558:2011: BS EN 1458-1:2011 and BS 7593:2006

It must be installed by a competent person as defined by the relevant regulations. Manufacturers notes must NOT be taken as over-riding statutory obligations.

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised at all times to ensure they do not play with the appliance.

This information is provided to assist generally in the selection of equipment.

Responsibility for selection and specification of our equipment must however remain that of our customer and any experts or consultants concerned with the installation(s).

PLEASE NOTE: THAT WE DO NOT THEREFORE ACCEPT ANY RESPONSIBILITY FOR MATTERS OF DESIGN SELECTION OR SPECIFICATION, FOR THE EFFECTIVENESS OF AN INSTALLATION OR SYSTEM CONTAINING ONE OF OUR PRODUCTS UNLESS SPECIFICALLY REQUESTED TO DO SO IN WRITING.

All goods are sold subject to our Conditions of Sale which are set out at the rear of this specification. In the interest of continuously improving the Stainless Lite range, Gledhill Building Products Limited reserve the right to modify the product without notice, and in these circumstances this booklet, which is accurate at the time of printing, should be disregarded. An updated set of Instructions will be produced and supplied with new appliances and will be made available for other appliances on request.

Stainless Lite Buffer Store is produced under an iso 9001:2008 quality management system approved by bsi.

ISSUE 7: JANUARY 2014

Section Page

DESIGN

Description 3 Technical Data 4

INSTALLATION

Installation 8 Commissioning 10

APPENDIX

Appendix A 11 Appendix B 12

Notes 13

Benchmark Checklist 16 Benchmark Service Record 17

Terms & Conditions 18

Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturers 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 provided to the customer for future reference.

Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hot Water Industry Council who manage and promote the Scheme. Visit www.centralheating.co.uk for more information.

For further information on the HWA Charter Membership, please refer to the HWA website hotwater.org.uk.

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Buffer vessels are simply a duplex stainless steel tank that contains a volume of water . Buffer vessels are used in heating systems to decouple the heat sources from the heat demands, in the same way a hot water cylinder decouples the hot water demands from the boiler .

Buffer stores are recommended by heat pump manufacturers to ensure trouble free operation of their appliances. They achieve this by presenting the heat pump with a larger volume of water to heat which reduces the amount of cycling. This in turn extends the life of the heat pump’s compressor and by reducing cycling reduce running costs.

These buffer stores can be connected to air, water or ground source heat pumps.

Buffer stores can be connected to either open vented or sealed systems as they are designed to work at up to 3.5 bar . The systems that are connected to the buffer store dictate the selection of system and components required for safe operation, and this is the responsibility of the system designer .

Buffer stores are not suitable for potable water and should not be used to feed any hot water outlets.

Direct & Indirect buffer stores

Direct buffer stores are heated directly by the main heat source only, eg. heat pump, and do not incorporate electric heaters and therefore the heating circuit flow temperature connected to the buffer vessel depends upon the flow temperature of the heat source. This type of store is ideal for the combination of a heat pump with under floor heating. Underfloor heating operating at 30°C - 40°C.

Indirect stores enable connections to be made to the heat pump, heating system and an additional heat source. This could be an oil or gas boiler but not a solid fuel heat source because the heat exchanger is not of the correct type. The additional heat is supplied via a heat exchanger and therefore is hydraulically separate from the water in the buffer store.

An additional heat source is useful for extreme conditions when the heat pump may not be able to supply the heat required and when it can top up the store.

Flexible buffer stores

This type of buffer store has been designed with flexibility in mind. It enables multiple heat pumps and/or separate domestic hot water and central heating zones to be connected. For this reason the installation diagrams in the following pages do not relate to this model. The installer can choose how to install this product and blank off any unused connections.

Weather compensation

Some heat pumps can use the external temperature to control the temperature of the water supplied to the cylinder and therefore the temperature supplied to the under floor heating. This can produce further savings by eliminating the need for the thermostatic component of the under floor heating manifold. Also it enables the heating system to run at its optimum temperature, rather than running too hot for the conditions at that time.

DESIGN

DESCRIPTION

Please Note:i) Any heat source, heat pump, boiler or other source used in a sealed

system must incorporate a certified overheat protection device and the heat source should be certified for use in a sealed heating system. All heat sources must have two independent temperature control devices, for example, a control and an overheat thermostat.

ii) Any sealed heating system must have a means for accommodating

the expansion of the whole system volume including the buffer vessel’s volume.

iii) Any heat source in a sealed heating system must be fitted with a

pressure relief valve (PRV), and there should be no isolating valve between the PRV and the heat source.

iv) Any sealed heating system should incorporate an approved filling

method.

v) Should it be deemed necessary by the designer or installer to

incorporate a third level of protection against overheat, a manual reset overheat thermostat can be fitted in the top thermostat pocket. This coupled with the energy cut off valves for every heat source will stop the buffer store overheating if all other devices fail.

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The Buffer store is insulated to a very high standard using high density HCFC free foam cased in a steel shell and has an ozone depletion potential (ODP) of zero and a global warming potential (GWP) of 1.

The specification of the models are shown in the following tables.

DESIGN

TECHNICAL DATA

Stainless Lite Direct Buffer Store Technical Specification

Description 90D 120D 210D 300D 400D

Capacity litres 90 120 210 300 400 Height mm 745 930 1495 1992 2030 Diameter mm 550 550 550 550 630 Weight (empty) kg 13 18 28 37 51 Weight (full) kg 103 138 238 337 451 Standing losses kWhr/24hr 0.85 1.06 1.70 2.04 2.82 Maximum working pressure - cylinder bar 3.5 3.5 3.5 3.5 3.5 Maximum working pressure - space heating bar 3.5 3.5 3.5 3.5 3.5 Central heating flow connection mm 28 28 28 35 35 Central heating return connection mm 28 28 28 35 35 Heat pump flow connection mm 28 28 28 35 35 Heat pump return connection mm 28 28 28 35 35 Central heating flow tapping height mm 732 920 1483 2020 2030 Central heating return tapping height mm 200 200 200 200 214 Heat pump flow tapping height mm 690 690 1253 1791 1805 Heat pump return tapping height mm 300 300 300 300 314 Thermostatic pocket size - Bottom mm 22 22 22 22 22 Thermostatic pocket size - Top mm 22 22 22 22 22 Thermostatic pocket height - Bottom mm 245 257 446 607 621 Thermostatic pocket height - Top mm 448 571 937 1287 1201

Heating Flow

Heat Pump Return

Heating Return

Heat Pump Flow

Sensor Pocket

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DESIGN

TECHNICAL DATA

Stainless Lite Indirect Buffer Store Technical Specification

Description 120IND 210IND 300IND 400IND

Capacity litres 120 210 300 400 Height mm 930 1495 1992 2030 Diameter mm 550 550 550 630 Weight (empty) kg 22 33 44 55 Weight (full) kg 142 243 344 455 Standing losses kWhr/24hr 1.06 1.70 2.04 2.82 Maximum working pressure - cylinder bar 3.5 3.5 3.5 3.5 Maximum working pressure - space heating bar 3.5 3.5 3.5 3.5 Maximum working pressure - heat exchanger bar 3.0 3.0 3.0 3.0 Central heating flow connection mm 28 28 35 35 Central heating return connection mm 28 28 35 35 Heat pump flow connection mm 28 28 35 35 Heat pump return connection mm 28 28 35 35 Coil flow connection mm 22 22 22 22 Coil return connection mm 22 22 22 22 Central heating flow tapping height mm 920 1483 2020 2030 Central heating return tapping height mm 200 200 200 214 Heat pump flow tapping height mm 690 1253 1791 1805 Heat pump return tapping height mm 300 300 300 314 Coil flow tapping height mm 535 780 1000 1014 Coil return tapping height mm 315 520 700 714 Thermostatic pocket size - Bottom mm 22 22 22 22 Thermostatic pocket size - Top mm 22 22 22 22 Thermostatic pocket height - Bottom mm 257 446 607 621 Thermostatic pocket height - Top mm 571 937 1287 1201 Coil - loops 6888 Coil - surface area m

0.59 0.78 0.78 0.78

Heating Flow

Coil Flow

Sensor Pocket

Heating Return

Heat Pump Flow

Sensor Pocket

Heat Pump Return

Coil Return

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DESIGN

TECHNICAL DATA

Stainless Lite Flexible Buffer Store Technical Specification

Description 90FLX 120FLX 210FLX 250FLX 300FLX 400FLX

Capacity litres 90 120 210 250 300 400 Height mm 745 930 1495 1745 1992 2030 Diameter mm 550 550 550 550 550 630 Weight (empty) kg 13 18 28 32 37 51 Weight (full) kg 103 138 238 282 337 451 Standing losses kWhr/24hr 0.85 1.06 1.70 1.85 2.04 2.82 Maximum working pressure - cylinder bar 3.5 3.5 3.5 3.5 3.5 3.5 Maximum working pressure - space heating bar 3.5 3.5 3.5 3.5 3.5 3.5 Tappings mm 28 28 35 35 35 35 Upper tapping height mm 470 662 1225 1475 1761 1776 Lower tapping height mm 295 295 295 295 295 310 Vent/relief boss (22mm compression) mm Top/Mid Top/Mid Top/Mid Top/Mid Top/Mid Top/Mid Drain (1/2” BSP) height mm 220 220 220 220 220 235 Inspection hatch (1 3/4” BSP) height mm 370 370 370 370 370 385 Thermostatic pocket size mm 22 22 22 22 22 22 High level stat height mm 470 662 1225 1475 1761 1776 Low level stat height mm 295 295 295 295 295 310

Upper Plain Pipe Connections

Lower Plain Pipe Connections

High Level Stat

Low Level Stat

Inspection hatch

22mm Compression

½" BSP Fitting for Drain Valve

The 22mm compression connection at the top of the cylinder can be used as a vent or possible pressure relief position.

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DESIGN

TECHNICAL DATA

Sizing the Buffer store to the Heat pump

Buffer stores should be sized as per the table below (source paragraph

4.5 BS EN 15450).

One heat pump manufacturer recommends that -

‘… A prerequisite for energy-efficient operation is the proper design of

the heat source system and the heat utilization system. One of the most important factors of heat pump efficiency is keeping the temperature difference between the heating water and the heat source as small as possible. It is therefore strongly recommended that the design of both the heat source system and the heat distribution system be carried out with great care.

A 1 Kelvin (1C) higher temperature difference corresponds to an increase in power consumption of approximately 2.5%. When designing the heating system care must be taken that special applications such as domestic water heating are taken into consideration and dimensioned for low temperature operation. Heat pumps are optimally suited for underfloor heating (surface/ radiant heating) applications due to the low supply temperatures (30˚C to 40˚C). A considerable contribution to the economical operation is made by the heat pump controller provided it is set correctly…’

Using the buffer store in conjunction with an additional heat source requires a more sophisticated control system. This is to stop the boiler dominating the heating of the cylinder and reducing the possible input of the heat pump.

Several alternative arrangements are shown on page 7 & 8. It is also possible to use a buffer vessel in a serial arrangement, either in the return or flow from the heat pump.

Heat Pump Sizing

Cylinder capacity Heat pump output

90 litres 2.6kW - 7.5kW 120 litres 3.4kW - 10kW 210 litres 6kW - 17.5kW 300 litres 8.5kW - 25kW 400 litres 11.4kW - 33.3kW

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INSTALLATION

A typical example where a heat pump is supplying an indirect Stainless Lite buffer store which in turn is supplying a sealed under floor heating system

Buffer Store

Underfloor heating

Heat pump

Boiler or

additional heat source

Sealed

system kit

Sealed

system kit

A typical example where a heat pump is supplying a direct Stainless Lite buffer store which in turn is supplying a sealed under floor heating system

Buffer Store

Underfloor heating

Heat pump

Sealed

system kit

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INSTALLATION

Stainless Lite

Indirect

A typical example where a heat pump is supplying an indirect Stainless Lite buffer store which in turn is supplying the heating system and Stainless Lite Indirect cylinder

Buffer Store

Heating System

Heat pump

Boiler or

additional heat source

Sealed

system kit

Sealed

system kit

Hot water

Motorised Valve

Energy cut-out

(Not supplied)

Stainless Lite

Heat Pump

A typical example where a heat pump is supplying a direct Stainless Lite buffer store which in turn is supplying the heating system and Stainless Lite Heat Pump cylinder

Buffer Store

Heating System

Heat pump

Sealed

system kit

Hot water

Solar

coil

Motorised Valve

Energy cut-out

(Not supplied)

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System Controls

The system controls should be developed in conjunction with the heat pump manufacturer .

Soldering

In line with good plumbing practice, use with excessive flux should be avoided.

When soldering above the cylinder, ensure flux/solder does not contaminate the cylinder below, since this can cause corrosion.

Flushing the system

Before completing the heat pump connections, the heating installation must be flushed in order to remove any impurities that may be present, residues of sealing agents. Any accumulation of residues and other deposits in the heat pump condenser may result in reduced efficiency of the unit or a total failure of the heat pump.

Water Treatment And Frost Protection

Although the Buffer store has no special water treatment requirements, the radiators and other parts of the circuit will require the application of a scale and corrosion inhibitor . The heat pump and the external connecting pipe work will also require protection against freezing. For this reason, a combined antifreeze and inhibitor product such as Fernox Alphi 11 must be used (see Fernox Alphi 11 datasheet in Appendix A).

The volumes and concentration should be calculated in accordance with the manufacturer’s instructions and when calculating the system volume i.e. the water content, the volume of the Buffer store should be taken into account (see technical specification tables).

NOTE

At the time of commissioning, complete all relevant sections of the Benchmark Checklist located on the inside back pages of this document.

This must be completed during commissioning and left with the product to meet the Warranty conditions offered by Gledhill.

INSTALLATION

COMMISSIONING

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APPENDIX

APPENDIX A

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APPENDIX

APPENDIX B

Description

Manual handling means any transporting or supporting of a load (including lifting, putting down, pushing, pulling, carrying or moving) by hand or bodily force.

Scope

This assessment will cover the largest unit within each product range manufactured by Gledhill.

For speciﬁc weights and dimensions please refer to technical data section.

Main Hazards

Vision may not be clear due to the size of the products. Adopting an incorrect method of lifting may cause injury, attempting to lift these products will require help from others. (Team lifts)

Control Measures

Manual lifting procedure

The lift, key factors in safe lifting are:

a. Balance b. Position of back c. Positioning of the arms and body d. The hold e. Taking the lead for team lifts

a. Balance - Since balance depends essentially upon the position of the feet,

they should be apart about hip breadth with one foot advanced giving full balance sideways and forward without tension. In taking up this position, lifting is done by bending at the knees instead of the hips and the muscles that are brought into use are those of the thigh and not the back.

b. Position of back - Straight - not necessary vertical. The spine must be

kept rigid, this coupled with a bent knee position, allows the centre line of gravity of the body to be over the weight so reducing strain.

c. Positioning of arms and body - The further arms are away from the side,

the greater the strain on the shoulders, chest and back. Keep elbows close to the body arms should be straight.

d. The hold - Before lifting ensure you have a good hold.

e. Taking the lead for team lifts- As

more than one person is required for these products ensure that one person is taking the lead. This may be you so ensure that each person that is helping is made aware of the weight and of the items listed within this assessment. Make sure you and any others helping know the route you intend to take that it is clear of any obstructions. Never jerk the load as this will add a little extra force and can cause severe strain to the arms, back and shoulders. If there are steps involved decide on where you will stop and take a rest period. Move smoothly and in unison taking care to look and listen to others helping with the lift. Where possible use a sack truck to move the product over long ﬂat distances, only lift the products when necessary. If in doubt stop and get more help.

Individual capability

Individual capability plays an important part in handling these products. Persons above average build and strength will ﬁnd it easier and should be in good health. Persons below average build and strength may require more rest periods during the handling process.

Pregnant women should not carry out this operation.

Persons who are not in good health should seek medical advice prior to commencing any lifting or manual handling operation.

Residual risk

Following the guidelines given above will reduce any risk to injury.

All persons carrying out this operation must be fully trained and copies of the speciﬁc risk assessment made available for inspection and use in their training process.

Further guidance on Manual Handling can be obtained from the Health and Safety Executive. Manual Handling Operations Regulations 1992.

MANUAL HANDLING OF APPLIANCE PRODUCTS

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NOTES

Page 14

NOTES

Page 15

NOTES

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TERMS AND CONDITIONS

Gledhill (Building Products) Ltd

AMD.DECEMBER 2013

CONDITIONS OF SALE & GUARANTEE TERMS

1. Gledhill (Building Products) Ltd (“We” or “Gledhills”) only do business upon the Conditions which appear below and no other. Unless we so agree in writing these Conditions shall apply in full to any supply of goods by us to the exclusion of any Conditions or terms sought to be imposed by any purchaser. These Conditions of Sale and Warranty Terms override those which are contained on the Invoice Forms and all Sales are now subject to these Conditions of Sale and Warranty terms only.

2. PRICE Once an order or call off has been accepted the price will be held for three months but if delivery is extended beyond that period at the customer’s request, then we reserve the right to amend the price when necessary.

The company reviews its pricing annually to adjust for changes in our cost base. We reserve the right to alter prices at any time for severe movements in raw materials (mainly copper and steel). If there is to be a change we will give customers at least four weeks notice but anything delivered after that date will be at the revised price. An order may not be cancelled or varied after acceptance without the written consent of the company. Such cancellation or variation shall be subject to such reasonable charges as may be appropriate.

3. SPECIFICATION

The goods are supplied in accordance with the Specifications (if any) submitted to the Purchaser and any additions and alterations shall be the subject of an extra charge. Any goods not so specified shall be in accordance with our printed literature or the literature of any of our component suppliers (subject to any modifications made since publication). If we adopt any changes in construction or design of the goods, or in the specification printed in our literature, the Purchaser shall accept the goods so changed in fulfilment of the order.

4. PAYMENT

The buyer shall make payment in full within thirty days from the end of the month in which the invoice is dated. If we receive payment in full on or before the due date we will allow an appropriate settlement discount except where we have quoted a special net price. If payment is not received in full on or before the due date we shall be entitled in addition to the invoice price to: (i) payment of a sum equal to any increase in the copper price supplement applicable to the particular goods sold

between the date of receipt of order and the date of receipt of payment in full; and

(ii) interest on any part of the invoice price unpaid after the due date at the rate of 3% per annum over the base

rate for the time being of HSBC Bank plc.

5. TIME

We give estimates of delivery dates in good faith and time of delivery is not nor shall be made of the essence of any contract nor shall we be liable for any loss or damage occasioned by delay in delivery.

6. DELIVERY

We deliver free normally by our own vehicles within 25 miles of any of our manufacturing depots. Delivery to any place more than 25 miles from one of our manufacturing depots may be subject to our quoted delivery charges. We reserve the right to make delivery of goods contained in one order by more than one consignment and at different times. Where a period is agreed for delivery and such period is not extended by our Agreement, the Purchaser shall take delivery within that period. If the Purchaser fails to take delivery, we shall be entitled at the Purchaser’s risk and expense to store the goods at the Purchaser’s premises or elsewhere and to demand payment as if they had been despatched. Off loading at point of delivery shall be the responsibility of and be undertaken by the Purchaser.

7. SHORTAGES OR DAMAGE

Goods must be inspected before signature of delivery note and any damage, shortage or discrepancy noted on the delivery note and the goods returned on the same vehicle. The buyer must also give us immediate written notice of the damage, shortage or discrepancy so that we may prompt investigation.

8. RETURN OF GOODS

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 Purchaser of handling and re-stocking charges, transport and all other costs incurred by the Company.

9. COMPANY LIABILITY AND GUARANTEE

9.1. Subject to the terms of these Conditions of Sale and Guarantee Terms Gledhills provide Guarantees in respect of specific products as set out in this clause.

9.2. Each Guarantee is strictly conditional upon the following:-

9.2.1. Complaints must be given to us immediately, before any action is taken, as responsibility cannot be accepted if repairs or renewals are attempted on site without our written approval.

9.2.2. The unit has been installed in accordance with our installation and service instructions and all relevant codes of practice and regulations in force at the time of installation.

9.2.3. All necessary inlet controls and safety valves have been fitted correctly.

9.2.4. The unit has only been used for the storage of potable water supplied from the public mains. The water quality shall be in accordance with European Council Directive 98/83 EC, or revised version at the date of installation, and is not fed with water from a private supply. Particular:

Chloride content: Max. 200 mg/l Sulphate content: Max. 200 mg/l Combination chloride/sulphate: Max. 300 mg/l (in total)

9.2.5 Where appropriate the unit has been regularly maintained as detailed in the installation and service instructions

9.2.6. Defects caused by corrosion or scale deposits are not covered by any Guarantee.

9.2.7. Where we agree to rectify any defect we reserve the right to undertake the work on our own premises.

9.2.8. We will not accept any labour charges associated with replacing the unit or parts for any of the following products listed.

9.2.9. If the newly fitted water heater is not in regular use then it must be flushed through with fresh water for at least 15 minutes. Open at least one hot water tap once per week, during a period of at least 4 weeks.

9.3. Guarantees are provided in respect of specified goods supplied by Gledhills as follows:-

(a) Domestic and Commercial Open Vented Cylinders and Tanks.

The storage vessel is guaranteed for ten years and if it proves to be defective either in materials or workmanship,

we will either repair or supply replacement at our option with the closest substitute in the case of any obsolete product to any address in Great Britain.

(i) free of all charge during the first year after delivery by us. (ii) thereafter at a charge of one-tenth of the then current list price and any copper price supplement and

delivery charge during the second year after delivery by us and increasing by a further one-tenth on the second and subsequent anniversary of delivery by us.

(b) Domestic Mains Fed Products [Primary Stores]

The storage vessel is guaranteed for five years and if it or any integral pipework as part of the storage vessel

assembly proves to be defective either in materials or workmanship, we reserve the right to either repair or supply replacements or the closest possible substitute in the case of any obsolete product and will collect and deliver to any address in England, Wales and Scotland (excluding all Scottish Islands).

(i) free of all charge during the first year after delivery

by us.

(ii) thereafter at a charge of one-fifth of the then current

list price or any copper price supplement and delivery charge during the second year after delivery by us increasing by a further one-fifth on the second and subsequent anniversary of delivery by us.

Gledhill guarantee the components including controls,

valves and electrical parts for two years from the date of purchase. IT SHOULD BE NOTED THAT THE FACTORY FITTED TEMPERATURE AND PRESSURE RELIEF VALVE MUST NOT BE REMOVED OR ALTERED IN ANY WAY OR THE GUARANTEE WILL NOT BE VALID. GLEDHILL WILL NOT BE RESPONSIBLE FOR ANY CONSEQUENTIAL LOSS OR DAMAGE HOWEVER IT IS CAUSED.

The guarantee for the stainless steel vessel is

for twenty five years against material defect or manufacturing faults if the original unit is returned to

us AND PROVIDED THAT: (i) It has not been modified, other than by Gledhill. (ii) It has not been subjected to wrong or improper

use or left uncared for.

(iii) It has only been used for the storage of potable

water supplied from the public mains, max

200mg/litre chloride. (iv) It has not been subjected to frost damage. (v) The benchmark service record is completed after

each annual service. (vi) The unit has been serviced annually. (vii) Any disinfection has been carried out strictly in

accordance with BS6700.

If the stainless steel vessel proves to be defective

either in materials or workmanship we reserve the right to either repair or supply replacements or the closest possible substitute in the case of any obsolete product and will collect and deliver to any address in England, Scotland and Wales (excluding all islands):

(i) free of charge during the first year after delivery by

us. (ii) thereafter at a charge of one twenty fifth of the

then current list price during the second year

after delivery by us and increasing by a further

one twenty fifth on the second and subsequent

anniversary of delivery by us.

ACTION IN THE EVENT OF FAILURE We will require the return of a cylinder which develops

a leak for inspection. If our examination confirms a failure then an appropriate level of credit against the cost of the original cylinder will be issued in line with the terms of our warranty.

Please note:

- Installation must have been carried out by a

licensed specialized company (heating contractor

or plumber) following the version of installation

instructions in force.

- Gledhill or its representative was given the

opportunity to check complaints on site

immediately after any defect occurred.

- Confirmation exists that the system was

commissioned properly and that the system

was checked and maintenance was performed

annually by a specialised company licensed for

this purpose.

(d) Components of our products other than Storage Vessels and Integral Pipework.

We will either extend to the purchaser the same terms

of warranty as we are given by the manufacturer of the component or if the manufacturer does not give any warranty, replace free of charge any component which becomes defective within two years after the date of the delivery by us and is returned to us at the purchaser’s expense but we shall not meet the cost of removal or shipping or return of the component or any other cost charges or damages incurred by the purchaser.

9.4.

9.4.1. In respect of goods supplied by us and in respect of any installation work carried out by or on our behalf, our entire liability and the purchaser’s sole remedies (subject to the Guarantees) shall be as follows:-

(a) We accept liability for death or personal injury to

the extent that it results from our negligence or that of our employees

Page 17

TERMS AND CONDITIONS

(b) Subject to the other provisions of this clause 9 we accept liability for direct physical damage to tangible

property to the extent that such damage is caused by our negligence or that of our employees, agents or subcontractors.

in contract or in tort including negligence) in respect of any one cause of loss or damage claimed to result from any breach of our obligations hereunder, shall be limited to actual money damages which shall not exceed £20,000 provided that such monetary limit shall not apply to any liability on the part of ourselves referred to in paragraph (a) above

(d) Except as provided in paragraph (a) above but otherwise not withstanding any provision herein contained

in no event shall we be liable for the following loss or damage howsoever caused and even if foreseeable

by us or in our contemplation: (i) economic loss which shall include loss of profits, business revenue, goodwill or anticipated savings (ii) damages in respect of special indirect or consequential loss or damage (other than death, personal

injury and damage to tangible property)

(iii) any claim made against the purchaser by any other party (save as expressly provided in paragraph (b)

above)

(e) Except in respect of our liability referred to in paragraph (a) above no claim may be made or action brought

(whether in contract or in tort including negligence) by the purchaser in respect of any goods supplied by

us more than one year after the date of the invoice for the relevant goods. (f) Without prejudice to any other term we shall not be liable for any water damage caused directly or

indirectly as a result of any leak or other defect in the goods. We cannot control the conditions of use of

the goods or the time or manner or location in which they will be installed and the purchaser agrees to be

fully responsible for testing and checking all works which include the goods at all relevant times (up to,

including and after commissioning) and for taking all necessary steps to identify any leaks and prevent any

damage being caused thereby. (g) Nothing in these Conditions shall confer on the purchaser any rights or remedies to which the purchaser

would not otherwise be legally entitled

10. LOSS OR INJURY

Notwithstanding any other provision contained herein the purchaser’s hereby agree to fully indemnify us against any damages losses costs claims or expenses incurred by us in respect of any claim brought against us by any third party for:(a) any loss injury or damage wholly or partly caused by any goods supplied by us or their use. (b) any loss injury or damage wholly or partly caused by the defective installation or substandard workmanship or

materials used in the installation of any goods supplied by us. (c) any loss injury or damage in any way connected with the performance of this contract. (d) any loss resulting from any failure by the purchaser to comply with its obligations under these terms as to

install and/or check works correctly. PROVIDED that this paragraph will not require the purchaser to indemnify us against any liability for our own acts of negligence or those of our employees agents or sub-contractors FURTHER in the case of goods supplied by us which are re-sold and installed by a third party by the purchaser it will be the sole responsibility of the purchaser to test the goods immediately after their installation to ensure that inter alia they are correctly installed and in proper working order free from leaks and are not likely to cause any loss injury or damage to any person or property.

11. VARIATION OF WARRANTY AND EXCLUSION

Should our warranty and exclusion be unacceptable we are prepared to negotiate for variation in their terms but only on the basis of an increase in the price to allow for any additional liability or risk which may result from the variation. Purchasers are advised to insure against any risk or liability which they may incur and which is not covered by our warranty.

12. ADVICE

Any advice or assistance given by the Company is provided without charge and is in good faith without undertaking, representation or warranty, and we will not accept any liability, whether consequential or compensatory, for advice or assistance given.

13. RISK AND RETENTION OF TITLE

(a) goods supplied by us shall be at the Purchaser’s risk immediately upon delivery to the Purchaser or into

custody on the Purchaser’s behalf or to the Purchaser’s Order. The Purchaser shall effect adequate insurance

of the goods against all risks to the full invoice value of the goods, such insurance to be effective from the time

of delivery until property in the goods shall pass to the Purchaser as hereinafter provided. (b) property in the goods supplied hereunder will pass to the Purchaser when full payment has been made by the

Purchaser to us for :-

(i) the goods of the subject of this contract. (ii) all other goods the subject to of any other contract between the Purchaser and us which, at the time of

payment of the full price of the goods sold under this contract, have been delivered to the Purchaser but not paid for in full.

above.

(i) the Purchaser shall hold the goods in a fiduciary capacity for us and shall store the same separately from

any other goods in the Purchaser’s possession and in a manner which enables them to be identified as our goods.

(ii) the Purchaser shall immediately return the goods to us should our authorised representative so request.

All the necessary incidents associated with a fiduciary relationship shall apply.

(d) the Purchaser’s right to possess the goods shall cease forthwith upon the happening of any of the following

events, namely :-

(i) if the Purchaser fails to make payment in full for the goods within the time stipulated in clause 4 hereof. (ii) if the Purchaser, 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.

(iii) if the Purchaser, being a company, does anything or fails to do anything which would entitle an

administrator or an administrative receiver or a receiver 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.

(e) the Purchaser hereby grants to us an irrevocable licence to enter at any time any vehicle or premises owned

or occupied by the Purchaser or in the possession of the Purchaser for the purposes of repossessing and

recovering any such goods the property in which has remained in us under paragraph (2) above. We shall

not be responsible for and the Purchaser will indemnify us against liability in respect of damage caused to

any vehicle or premises in such repossession and removal being damaged which it was not reasonably practicable to avoid.

(f) notwithstanding paragraph (3) hereof and subject to

paragraph (7) hereof, the Purchaser shall be permitted to sell the goods to third parties in the normal course of business. In this respect the Purchaser shall act in the capacity of our commission agent and the proceeds of such sale :-

(i) shall be held in trust for us in a manner which

enables such proceeds to be identified as such, and:

(ii) shall not be mixed with other monies nor paid into

an overdrawn bank account.

We, as principal, shall remunerate the Purchaser as

commission agent a commission depending upon the surplus which the Purchaser can obtain over and above the sum, stipulated in this contract of supply which will satisfy us.

(g) in the event that the Purchaser shall sell any of the

goods pursuant to clause (6) hereof, the Purchaser shall forthwith inform us in writing of such sale and of the identity and address of the third party to whom the goods have been sold.

(h) if, before property in the goods passes to the

Purchaser under paragraph (2) above the goods are or become affixed to any land or building owned by the Purchaser it is hereby agreed and declared that such affixation shall not have the effect of passing property in the goods to the Purchaser. Furthermore if, before property in the goods shall pass to the Purchaser under paragraph (2) hereof, the goods are or become affixed to any land or building (whether or not owned by the Purchaser), the Purchaser shall:-

(i) ensure that the goods are capable of being removed

without material injury to such land or building.

(ii) take all necessary steps to prevent title to the

goods from passing to the landlord of such land or building.

(iii) forthwith inform us in writing of such affixation and

of the address of the land or building concerned.

The Purchaser warrants to repair and make good

any damage caused by the affixation of the goods to or their removal from any land or building and to indemnify us against all loss damage or liability we may incur or sustain as a result of affixation or removal.

(i) in the event that, before property in the goods

has passed to the Purchaser under paragraph (2) hereof, the goods or any of them are lost, stolen, damaged or destroyed :-

(ii) the Purchaser shall forthwith inform us in writing

of the fact and circumstances of such loss, theft, damage or destruction.

(iii) the Purchaser shall assign to us the benefit of any

insurance claim in respect of the goods so lost, stolen, damaged or destroyed.

14. NON-PAYMENT

If the Purchaser shall fail to make full payment for the goods supplied hereunder within the time stipulated in clause 4 hereof or be in default of payment for any other reason then, without prejudice to any of our other rights hereunder, we shall be entitled to stop all deliveries of goods and materials to the Purchaser, including deliveries or further deliveries of goods under this contract. In addition we shall be entitled to terminate all outstanding orders.

15. VALUE ADDED TAX

All prices quoted are exclusive of Value Added Tax which will be charged at the rate ruling at the date of despatch of invoice.

16. TRADE SALES ONLY

We are only prepared to deal with those who are not consumers within the terms of the Unfair Contract Terms Act 1977, the Sale of Goods Act 1979 and the Supply of Goods and Services Act 1982. Accordingly any person who purchases from us shall be deemed to have represented that he is not a consumer by so purchasing.

17. JURISDICTION

The agreement is subject to English law for products delivered in England and Scottish law for products delivered in Scotland and any dispute hereunder shall be settled in accordance therewith dependent upon the location.

18. PRODUCT DEVELOPMENT

Gledhill have a policy of continuous product development and may introduce product modifications from time to time.

Page 18

BENCHMARK

This Commissioning Checklist is to be completed in full by the competent person who commissioned the storage system as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.

Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.

MAINS PRESSURE HOT WATER STORAGE SYSTEM COMMISSIONING CHECKLIST

Customer name: Telephone number: Address: Cylinder Make and Model Cylinder Serial Number Commissioned by (PRINT NAME): Registered Operative ID Number Company name: Telephone number: Company address:

Commissioning date:

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%XLOGLQJ5HJXODWLRQV1RWL¿FDWLRQ1XPEHULIDSSOLFDEOH

ALL SYSTEMS PRIMARY SETTINGS (indirect heating only) Is the primary circuit a sealed or open vented system? Sealed Open :KDWLVWKHPD[LPXPSULPDU\ÀRZWHPSHUDWXUH" °C

ALL SYSTEMS

What is the incoming static cold water pressure at the inlet to the system? bar +DVDVWUDLQHUEHHQFOHDQHGRILQVWDOODWLRQGHEULVLI¿WWHG" Yes No Is the installation in a hard water area (above 200ppm)? Yes No

,I\HVKDVDZDWHUVFDOHUHGXFHUEHHQ¿WWHG" Yes No

:KDWW\SHRIVFDOHUHGXFHUKDVEHHQ¿WWHG"

What is the hot water thermostat set temperature? °C

:KDWLVWKHPD[LPXPKRWZDWHUÀRZUDWHDWVHWWKHUPRVWDWWHPSHUDWXUHPHDVXUHGDWKLJKÀRZRXWOHW" I/min 7LPHDQGWHPSHUDWXUHFRQWUROVKDYHEHHQ¿WWHGLQFRPSOLDQFHZLWK3DUW/RIWKH%XLOGLQJ5HJXODWLRQV" Yes

Type of control system (if applicable) Y Plan S Plan Other Is the cylinder solar (or other renewable) compatible? Yes No What is the hot water temperature at the nearest outlet? °C All appropriate pipes have been insulated up to 1 metre or the point where they become concealed Yes

UNVENTED SYSTEMS ONLY

:KHUHLVWKHSUHVVXUHUHGXFLQJYDOYHVLWXDWHGLI¿WWHG"

What is the pressure reducing valve setting? bar +DVDFRPELQHGWHPSHUDWXUHDQGSUHVVXUHUHOLHIYDOYHDQGH[SDQVLRQYDOYHEHHQ¿WWHGDQGGLVFKDUJHWHVWHG" Yes No The tundish and discharge pipework have been connected and terminated to Part G of the Building Regulations Yes $UHDOOHQHUJ\VRXUFHV¿WWHGZLWKDFXWRXWGHYLFH" Yes No Has the expansion vessel or internal air space been checked? Yes No

THERMAL STORES ONLY

What store temperature is achievable? °C What is the maximum hot water temperature? °C

ALL INSTALLATIONS

The hot water system complies with the appropriate Building Regulations Yes The system has been installed and commissioned in accordance with the manufacturer’s instructions Yes The system controls have been demonstrated to and understood by the customer Yes The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer Yes

Commissioning Engineer’s Signature Customer’s Signature

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www.centralheating.co.uk

While this Checklist can be used for any installation covered by its description, only appliances manufactured by Scheme Members will be covered by the rules and requirements of the Benchmark Scheme.

Page 19

BENCHMARK

It is recommended that your hot water system is serviced regularly and that the appropriate Service Record is completed. Service Provider

Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.

SERVICE RECORD

SERVICE 01

Date: