Page 2
Page 3
Section
Page
DESIGN
Description
3
Technical Information
6
System Design
10
INSTALLATION
Installation
12
Commissioning
22
USER INSTRUCTIONS
23
SERVICING AND MAINTENANCE
Servicing and Maintenance
24
Fault Finding
25
Short Parts List
28
APPENDIX
Appendix A
29
Appendix B
30
Notes
31
Terms & Conditions
32
Benchmark Checklist
34
Benchmark Service Record
35
ISSUE 03: DECEMBER 2017
Maintenance
Modifications should not be made to this
product. Replacement parts, including
immersion heaters, should be purchased from
Gledhill Building Products Limited, or agents
approved by them. Unvented hot water storage
vessels need regular routine checks, and
these are detailed below. It is for this reason
that this manual must always be left with the
StainlessLite Plus.
It is essential that these checks be carried out
at the time of boiler maintenance by a qualified
installer:
1. Manually open the relief valves in turn, and
check that water is discharged from the
valves and runs freely through the tundish
and out at the discharge point. Ensure that
the valves re-seat satisfactorily. (Note - the
water may be very hot).
2. It is important to check that the discharge
pipework is carrying the water away
adequately. Check for blockages etc. if it is
not.
3. Turn the mains water off and remove and
clean the strainer element in the Pressure
Reducing Valve.
4. Check the charge pressure in the expansion
vessel and repressurise if required
5. Re-fill the system and ensure that all relief
valves have re-seated.
6. The Benchmark Service Record should be
updated at each service.
7. Check the water pressure downstream of the
combination valve is 3 bar in static condition.
8. Check and if necessary, descale the heat
exchanger in hard water areas ie. above
200ppm (mg/l).
Note:
The cylinder is factory fitted with a lift up
temperature & pressure relief valve that must
not be used for any other purpose or removed.
The cylinder is factory fitted with immersion
heaters with thermal cut outs. Immersions
without thermal cut outs must not be fitted.
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
StainlessLite Plus is covered by Section G3 of the Building Regulations (England and
Wales) Technical Standard P3 (Scotland) and Building Regulation P5 (Northern Ireland).
Compliance can be achieved via a Competent Person Self Certification Scheme or
notificaton of installation to the Local Authority Building Control Department.
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 StainlessLite Plus
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.
StainlessLite Plus is produced under an ISO 9001:2008 Quality Management
System approved by BSI.
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 Statement, please refer to the HWA website
hotwater.org.uk.
Manufacturer: Gledhill Building Products Ltd
Maximum inlet pressure to
Pressure
reducing
valve
12
bar
Operating pressure (PRV setting)
3 bar
Expansion vessel charge pressure
3 bar
Expansion relief valve setting
4.5 bar
Opening pressure of P & T Relief Valve
6 bar
Opening temperature of P & T Relief Valve
89-96°C
Energy cut-out thermostat setting
85°C
Max. working pressure - Primary heat exchanger (Indirect models) 6 bar
Max. working pressure - Solar heat exchanger (Solar models)
10 bar
Immersion heater rating
3kW, 240V AC
All cylinders are manufactured in accordance with the requirements of BS EN 12897
The tundish must be positioned so that it is visible to the occupant and is away from
electrical devices.
Components supplied with StainlessLite Plus:
• Cold water inlet PRV combination valve/expansion relief
• Lift up pressure and temperature relief valve
• Control thermostat
• Energy cut-out thermostat
• Energy cut-out motorised valve (indirects only)
• Tundish
• 3kW Immersion heater including control and cut out thermostats
• Expansion vessel/mounting bracket/flexible hose
• Technical/user product literature
(
Note:
Please refer to tables 1 and 2 on pages 6-9 to confirm the quantity of immersion
heaters supplied with the unit)
In any situation where the volume of heated pipework (eg. secondary circulation
pipes or manifold pipework for multiple units) exceeds 10 litres, then an
additional expansion vessel must be fitted to accommodate the extra expansion
volume.
Handling Before Installation
StainlessLite Plus must be handled with care and stored the correct way up in a
dry place. Any manual handling/lifting operations will need to comply with the
requirements of the Manual Handling Operations Regulations issued by the H.S.E.
The appliance can be moved using a sack truck on the rear face although care should
be taken and the route should be even. In apartment buildings containing a number
of storeys we would recommend that the appliances are moved vertically in a mechanical
lift. If it is proposed to use a crane, expert advice should be obtained regarding the
need for slings, lifting beams etc.
A specific manual handling assessment is shown in Appendix B at the rear of this
manual.
The Environment
This product has been manufactured using many recyclable materials, including the
approved HCFC/CFC free polyurethane foam insulation. At the end of its useful life, it
should be disposed of at a Local Authority Recycling Centre, to maximise the products
full environmental benefits.
DESIGN
DESCRIPTION
