StainlessLite Horizontal
Unvented mains pressure water storage in Duplex stainless steel
Design, Installation & Servicing Instructions
Models covered in this manual
Stainless Lite Horizontal Indirect 180-300 litres
Stainless Lite Horizontal Solar Indirect 180-300 litres
DESIGN
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
Stainless Lite 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 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 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.
ISSUE 4: JANUARY 2016
Section
Page
DESIGN
Description
System Design
3
6
INSTALLATION
Installation
Commissioning
8
18
USER INSTRUCTIONS
19
SERVICING AND MAINTENANCE
Servicing and Maintenance
Fault Finding
Short Parts List
20
21
24
APPENDIX
Appendix A
Appendix B
25
26
Warranty Information
27
Terms & Conditions
28
Benchmark Checklist
Benchmark Service Record
30
31
Manufacturer: Gledhill Building Products Ltd
Maintenance
Maximum inlet pressure to
Pressure reducing valve12 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
92-95°C
Energy cut-out thermostat setting
82°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
Modifications should not be made to this
product. Replacement par ts, 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 Stainless
Lite Horizontal.
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 Stainless Lite Horizontal:
• Cold water inlet PRV combination valve/expansion relief
• 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 6-7 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
Stainless Lite Horizontal must be handled with care and stored 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.
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 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.
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.
Page 2
Page 3
DESCRIPTION
DESIGN
DESIGN
Figure 1 - Stainless Lite Horizontal Indirect
Stainless Lite Horizontal is a range of unvented hot water storage cylinders,
manufactured in the latest high quality duplex stainless steel. They are designed to
provide mains pressure hot water and are supplied as a package which complies with
Section G3 of the Building Regulations. The appliance is extremely well insulated using
high density HCFC free foam insulation with an ozone depleting potential (ODP) of
zero and a global warming potential (GWP) of 1. It is fitted with all necessary safety
devices and supplied with all the necessary control devices to make installation on
site as easy as possible.
Stainless Lite Horizontal is available in two basic variants:
1. Stainless Lite Horizontal Indirect - For use with gas or oil boilers (Figure 1).
Unvented cylinders must not be used with solid fuel boilers or steam as the energy
source.
2. Stainless Lite Horizontal Indirect Solar - For providing hot water by solar gains
and gas or oil boilers (Figure 2). Unvented cylinders must not be used with solid
fuel boilers or steam as the energy source.
Stainless Lite Horizontal Indirect
Figure 2 - Stainless Lite Horizontal Indirect Solar
Stainless Lite Horizontal Indirect Solar
Stainless Lite Horizontal indirect is an unvented hot water storage cylinder and is
provided with a high efficiency internal primary coil which is designed for use with
a gas or oil boiler and is suitable for both open vented and sealed pumped primary
systems.
When used with a sealed heating system the boiler must incorporate its own energy
cut-out overheat thermostat.
A high efficiency second solar coil is positioned below the primary coil to ensure
maximum benefit of solar gain energy.
Stainless Lite Horizontal indirect Solar models are listed in the table on page 6 & 7.
Each cylinder is provided with adrain fitting which must be installed prior to filling
the unit, in the drain tapping. A hose may be fitted to drain the cylinder. The drain
down procedure must be followed.
Stainless Lite Horizontal indirect is an unvented hot water storage cylinder and is
provided with a high efficiency internal primary coil which is designed for use with
a gas or oil boiler and is suitable for both open vented and sealed pumped primary
systems.
When used with a sealed heating system the boiler must incorporate its own energy
cut-out overheat thermostat.
Stainless Lite Horizontal indirect models are listed in the table on page 6 & 7.
DESCRIPTION
Page 4
Page 5
DESCRIPTION
DESIGN
DESIGN
2
3
7
4
6
8
1
5
6
5
10
6
8
9
Part G3 loose components supplied in a
separate box
A. Combination inlet group incorporating
pressure reducing valve, strainer, check
valve, balance cold take off point, expansion
relief valve and expansion vessel connection
points.
B. Potable expansion vessels c/w flexible hose
and wall bracket
C.Tundish
D. Dual control thermostat and combined
overheat thermostat (x2)
E. Two port (22mm) zone valve for primary
circuit
F. Wiring junction box for primary system
Stainless Lite Horizontal Indirect Solar
Cylinder volume
Overall
width
Overall height
Diameter
Weight
empty
Weight
full
Expansion
vessel volume
Pre-charge
pressure
of expansion
vessel
Primary coil
rating
Primary coil
surface area
Primary coil
pressure loss
Solar coil
surface area
Solar coil
pressure loss
Primary coil
heat up time
from 15°C
to 60°C
Recovery time
after 70%
draw off
Volume
produced by
the primary coil
Dedicated
solar volume
Immersion only
heat up time
from 15°C
to 60°C
Immersion draw
off volume
Basic Appliance
1. Primary coil flow and return (22mm compression)
2. Secondary return (22mm compression)
3. Cold feed (22mm compression)
4. Lift up P&T relief valve outlet (15mm compression)
5. Hot supply (22mm compression)
6. Solar coil flow and return (22mm compression)
7. Solar stat pocket (22mm)
8. Control stat pocket (22mm)
9. Immersion heater (1 3/4” female)
10. Drain(1/2” female)
Heat Loss
Energy
Efficiency
Class
Stock Code
Model
4
7
Part G3 loose components supplied in a
separate box
A. Combination inlet group incorporating
pressure reducing valve, strainer, check
valve, balance cold take off point, expansion
relief valve and expansion vessel connection
points.
B. Potable expansion vessels c/w flexible hose
and wall bracket
C.Tundish
D. Dual control thermostat and combined
overheat thermostat
E. Two port (22mm) zone valve for
primary circuit
F. Wiring junction box for primary system
Basic Appliance
1. Primary coil flow and return (22mm compression)
2. Secondary return (22mm compression)
3. Cold feed (22mm compression)
4. Lift up P&T relief valve outlet (15mm compression)
5. Hot supply (22mm compression)
6. Control stat pocket (22mm)
7. Immersion heater (1 3/4” female)
8. Drain(1/2” female)
watts
Litres
mm
mm
mm
kg
kg
Litres
bar
kW
m2
bar
m2
bar
min
min
litres
litres
min
litres
ASL0050H
ASL0055H
ASL0060H
ASL0065H
C
C
C
C
78
82
86
91
176
207
246
296
1310
1495
1745
1992
585
585
585
585
550
550
550
550
27
31
35
46
203
238
281
342
18
24
24
35
3
3
3
3
18.4
20.9
20.3
21.6
0.78
0.97
1.27
1.27
0.21
0.19
0.28
0.31
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
27
27
36
32
27
26
26
28
165
285
205
225
n/a
n/a
n/a
n/a
103
140
82
184
90
120
120
140
1
1
2
2
ASL0090H
ASL0095H
ASL0100H
ASL0105H
C
C
C
C
78
82
86
91
174
208
244
294
1310
1495
1745
1992
585
585
585
585
550
550
550
550
31
34
35
46
205
242
279
340
18
24
24
35
3
3
3
3
15.4
16.0
20.2
17.7
0.59
0.59
0.78
0.78
0.33
0.33
0.28
0.28
0.49
0.49
0.59
0.59
0.21
0.21
0.25
0.25
21
24
38
26
21
23
36
26
110
115
133
140
64
85
112
145
114
131
153
182
100
115
135
160
1
1
1
1
NOTES
1. Recovery times based on Primary Coil/I.H. duty (ie. assumes the boiler output is
adequate).
2. All connections are supplied with compression fittings for direct connection to
copper pipework.
SYSTEM DESIGN
3
7
Stainless Lite Horizontal Indirect
Indirect
IND180
IND210
IND250
IND300
Indirect Solar
IND180SOL
IND210SOL
IND250SOL
IND300SOL
2
Number of
immersions
1
Page 6
3. The diagrams shown are generic. For exact
product specification refer to the table eg.
the number of immersion heaters varies
depending on model.
4. Heat up and recovery times based on
0.25 l/s primary flow rate and at 82°C flow
temperature.
Page 7
SYSTEM DESIGN
INSTALLATION
INSTALLATION
General Design Considerations
Insulation of pipework
The unit must be installed on the supports provided. The supports must be aligned
with the embossed marking. This ensures that the pressure and temperature relief
valve is vertical in the cylinder. The base chosen for the cylinder should be level and
capable of supporting the weight of the unit when full of water as shown in General
Data. The discharge pipework for the safety valves must have a minimum fall of 1 :
200 from the unit to a safe discharge point. All exposed pipework and fittings on the
cylinder should be insulated, and the unit should NOT be fixed in a location where
the contents could freeze.
In new systems, pipes should be insulated to comply with building regs, the maximum
permissible heat loss is indicated in the table opposite, and labelled accordingly as follows:
i. Primary circulation pipes for domestic hot water circuits should be insulated
through their length, subject only to practical constraints imposed by the need
to penetrate joists and other structural elements.
ii. All pipes connected to hot water storage vessels, including the discharge vent pipe,
should be insulated for at least 1 metre from their points of connection to the cylinder
(or they should be insulated up to the point where they become concealed).
In replacement systems, whenever a boiler or hot water storage vessel is replaced in
an existing system, any pipes that are exposed as part of the work or are otherwise
accessible should be insulated as recommended for new systems, or to some lesser
standard where practical constraints dictate.
Standard Model Selection Guide
Max hot water demand
Max number
of bed spaces
(Bedrooms)
Indirect
litres
1 bathroom + 2 separate shower rooms or 2
bathrooms
7 (5)
180
2 bathrooms + separate shower room
7 (5)
210
2 bathrooms + 2 separate shower rooms
7 (5)
250
3 bathrooms
9 (6)
300
Solar Model Selection Guide
Max hot water demand
Indirect
litres
Bedrooms
1 bathroom
1-3
180
1 bathroom + 1 shower room
1-3
210
1 bathroom + 2 shower rooms
2-4
250
2 bathrooms + 1 shower room
3-4
300
Protrusion from cylinder
Pipe outside
diameter
Maximum
heat loss
15mm
7.89W/m
22mm
9.12W/m
28mm
10.07W/m
35mm
11.08W/m
The pipe connecting the boiler flow to the
appliance must not be less than 22mm
copper or equivalent.
Further guidance on converting heat loss limits
to insulation thickness for specific thermal
conductivities is available in TIMSA “HVAC
guidance for achieving compliance with Part L
of the Building Regulations”.
Mains Water Supply
Existing properties with a 15mm supply will be
satisfactory provided the local mains pressure
is good, but should be confined to single
bathroom properties. For new properties where
simultaneous demand is required to more than
one bathroom or a bathroom and one or more
en-suites, the communication and service pipe
into the dwelling should be a minimum of 22mm
(usually in the form of a 25mm MDPE supply). The
optimum performance is achieved if the inlet
pressure is 3 bar dynamic. However, the Stainless
Lite Horizontal will function with lower inlet
pressures, but this will reduce the performance.
For optimum performance, 30L per minute
incoming mains flow should be present,
however the Stainless Lite Horizontal will work
at lower flow rates, although performance will
be affected. Normally Stainless Lite Horizontal
provides well in excess of 40 litres/min in most
conditions. Flow rates for ALL mains pressure
systems are subject to district pressures and
system dynamic loss. Particularly on larger
properties with more than one bathroom, the
pipe sizes should be calculated in accordance
with BS EN 806-3:2006 and BS 8558:2011.
Clearance allowance
Support
width
Immersion
PTRV
Aquastat
Rear
End
Top
Front
Width
Depth
Height
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
180
700
80
70
80
90
150
150
300
450
1610
1100
885
210
815
80
70
80
90
150
150
300
450
1795
1100
885
250
970
80
70
80
90
150
150
300
450
2045
1100
885
300
1120
80
70
80
90
150
150
300
450
2292
1100
885
INSTALLATION
Page 8
Pipe Layout
a. The highest hot or cold water draw off point should not exceed 10 metres above
the Pressure Reducing Valve.
b. An ascending spray type bidet or any other appliance with a Class 1 back-syphonage
risk requiring a type A air gap should not be used.
c. Stainless Lite Horizontal should not be used where steam is the primary heating
medium, or in a situation where maintenance is likely to be neglected.
d. Unvented cylinders are not suitable for use with solid fuel boilers.
e. If the supply to the mixer fittings (other than a dual outlet type) is not taken from
the balanced supply the system will become over pressurized and cause the
pressure relief valve to discharge. Over time this could also cause the premature
failure of the appliance itself which will not be covered by the warranty.
f. In larger properties with a number of bathrooms/en-suites and long pipe runs
we would recommend that the balanced cold supply is provided with its own
pressure reducing valve and is not taken from the balanced cold connection on
the combination valve. In this case it will also be necessary to fit a small expansion
vessel on the balanced cold water system to accommodate the pressure rise caused
by the increase in temperature of the balanced cold water.
g. 0Check the performance requirements of the terminal fittings with regard to flow/
pressure are suitable.
h. In relation to potable water systems, expansion vessels shall be installed in a vertical
orientation and located so that the length of the connecting pipe work is kept to
a minimum.
In all mains pressure installations it is important
to remember that the incoming cold supply
must be shared between all terminal fittings. It
is important that a 22mm supply is brought to
the appliance and a 22mm take-off is continued
at least to the bath. If there are two baths, 28mm
pipework should be considered. One metre of
smaller diameter pipework, or flow restrictors,
should be provided on the final connection to
all outlets so as to balance the water available.
In any event the distribution pipework should
generally be in accordance with BS EN806-1 to 5.
Shower Fittings
Aerated taps are recommended to prevent splashing. Any type of shower mixing valve
can be used as long as both the hot and cold supplies are mains fed. However, all mains
pressure systems are subject to dynamic changes particularly when other hot and cold
taps/showers are opened and closed, which will cause changes in the water temperature
at mixed water outlets such as showers. For this reason and because these are now no
more expensive than a manual shower we strongly recommend the use of thermostatic
showers with this appliance. These must be used in 3 storey properties where the
impact on pressure/temperature of opening another tap in the system is greater than
normal. The shower head provided must also be suitable for mains pressure supplies.
SH
DHW
WC
ERV/NRV
PRV
SCV
Plastic Pipework
This appliance is suitable for use with plastic
pipework as long as the material is recommended
for the purpose by the manufacturer and is installed
fully in accordance with their recommendations.
Secondary Hot Water Circulation
Some models are fitted with a secondary
return tapping as standard (see tables 1 and 2
for details). If fitted, an extra expansion vessel
may be necessary. A non-return valve MUST be
FITTED near the return connection. No valve
or terminal fitting should be installed between
the non return valve and the cylinder. (See
schematic arrangement on page 15.) All pipes
kept hot by the secondary circulation should
be insulated.
WHB
P&T
SCV
BATH
Note:
Cold supplies to single taps must be
taken from the mains cold water
system.
Cold supplies to mixer taps must be
taken from the balanced cold water
connection on the combination
valve.
WM or DWM
Minimum cupboard size
Support
spacing
Model
General Restrictions
WHB
SINK
TO
EXTERNAL
TAP
DC
W.C.
DCV
DC
DC
M
DC
WATER SOFTENER (IF NECESSARY)
DC
INCOMING COLD SUPPLY
Page 9
INSTALLATION
INSTALLATION
INSTALLATION
Pressure & Temperature/expansion Relief
Valve Pipework
Typical Discharge Pipe Arrangement
15 mm
discharge
pipe
Expansion
relief valve
The relief valve should be installed to discharge
in accordance with G3 of the Approved
Document of the Building Regulations and
should be piped to where it is visible, but will
not cause danger to persons or damage to
materials.
600 mm max.
P&T
Relief
Valve
Dotted line showing
alternative route with
single tundish being used
300 mm
min.
Discharge below
fixed grating
22 mm metal pipe with continuous
fall up to 9m equivalent length (D2).
NOTES:
Fixed Grating
The discharge will consist of scalding
waterand steam. Asphalt, roofing felt
and non-metallic rainwater goods may
be damaged by such discharges.
It is not acceptable to discharge straight
into a soil pipe.
Trapped gully
Worked Example
The example below is for G1/2 temperature relief valve with a discharge pipe (D2)
having 4 elbows and length of 7m from the tundish to the point of discharge.
From the table below:
Maximum resistance allowed for a straight length of 22mm copper discharge
pipe (D2) from a G1/2 temperature relief valve is: 9m subtract the resistance for
4 x 22mm elbows at 0.8m each = 3.2m.
Therefore the maximum permitted length equates to: 5.8m.
5.8m is less than the actual length of 7m therefore calculate the next largest size.
Maximum resistance allowed for a straight length of 28mm pipe (D2) from a G1/2
temperature relief valve equates to: 14m.
As the actual length is 7m, a 28mm (D2) copper pipe will be satisfactory.
Sizing of copper discharge pipe ‘D2’ for a temperature relief valve
with a G1/2 outlet size (as supplied)
Size of discharge
pipework
Maximum length of
straight pipe
(no bends or elbows)
Deduct the figure
below from the
maximum length for
each bend or elbow in
the discharge pipe
22mm
Up to 9m
0.8m
28mm
Up to 18m
1m
35mm
Up to 27m
1.4m
The following information is taken from
Approved Document G3 of the Building
Regulations and is provided to assist with
the design and installation of the discharge
pipework. However, the information is not
exhaustive and reference should always be
made to Approved Document G3 of the Building
Regulations. The final decision regarding any
arrangements rests with Building Control and
it is recommended that their advice is sought
if you have any concerns regarding this aspect
of the installation.
The two safety valves will only discharge
water under fault conditions. When operating
normally water will not be discharged.
The tundish should be vertical, located in the
same space as the unvented hot water storage
system and be fitted as close as possible and
within 600mm of the safety device e.g. the
temperature relief valve.
The discharge pipe (D2) from the tundish should
terminate in a safe place where there is no risk
to persons in the vicinity of the discharge, be
of metal and:
a) Be at least one pipe size larger than the
nominal outlet size of the safety device unless
its total equivalent hydraulic resistance
exceeds that of a straight pipe 9m long
i.e. discharge pipes between 9m and 18m
equivalent resistance length should be at
least two sizes larger than the nominal outlet
size of the safety device, between 18 and
27m at least 3 sizes larger, and so on. Bends
must be taken into account in calculating
the flow resistance. Refer to the table and
the worked example.
An alternative approach for sizing discharge
pipes would be to follow BS EN 806-2:2005
Specification for design installation, testing
and maintenance of services supplying water
for domestic use within buildings and their
curtilages.
b)Have a vertical section of pipe at least
300mm long, below the tundish before any
elbows or bends in the pipe work.
d) It is preferable for the discharge to be visible at both the tundish and the final point
of discharge but where this is not possible or practically difficult there should be
clear visibility at one or other of these locations. Examples of acceptable discharge
arrangements are:
1. Ideally below the fixed grating and above the water seal in a trapped gulley.
2. Downward discharges at a low level; i.e. up to 100mm above external surfaces
such as car parks, hard standings, grassed areas etc are acceptable providing that
where children play or otherwise come into contact with discharges, a wire cage
or similar guard is positioned to prevent contact whilst maintaining visibility.
3. Discharges at a high level; e.g. into metal hopper and metal down pipe with the
end of the discharge pipe clearly visible (tundish visible 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.
4. Where a single pipe serves a number of discharges, such as in blocks of flats,
the number served 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 individual discharge pipe
to be connected. If unvented hot water storage systems are installed where
discharges form safety devices may not be apparent i.e. in dwellings occupied by
blind, infirm or disabled people, consideration should be given to the installation
of an electronically operated device to warn when discharge takes place.
Safety
The safety devices supplied or fitted on an
Stainless Lite Horizontal are selected for
their suitability for the temperatures and
pressures involved. They must not be changed,
removed or by-passed and it is essential that
only genuine replacement parts supplied or
approved by Gledhill Building Products Limited
are used. This includes the immersion heaters,
which must incorporate an energy cut-out. All
parts are available to approved installers from
Gledhill Building Products Limited, Sycamore
Estate, Squires Gate, Blackpool (Telephone
01253 474402).
Please Note
The pressure and temperature relief valve
for the vertical Stainless Lite models is not
compatible with the horizontal Stainless
Lite.
Combination Inlet Group
Combines elements 1, 2 and 3 below.
1. Pressure Reducing Valve - This must be fixed near the cylinder. The cold water supply
to any mixer taps/showers must be taken from the cold water tapping of this valve
to ensure balanced hot and cold pressures. This valve is factory set to ensure the
correct operating pressure for the Stainless Lite Horizontal.
2. Non Return Valve - This is integral with the pressure reducing valve to prevent
backflow of hot water towards cold water draw off points.
3. Cold Water Expansion Relief Valve - This safety device is preset at the factory and
will relieve excess cold water pressure resulting from a fault condition.
Schematic Diagram
Expansion Vessel(s)
Balanced
Cold
Outlets
ERV
Secondary
Return Circuit
Boiler
Flow
Pump
Non Return
Valve
NRV
PRV
2 Port Valve
Hot Outlet
Combination
Valve
Boiler
Return
P&T
Relief
Valve
Stop
Tap
Tundish
Kitchen
Cold
Tap
To Drain
c) Be installed with a continuous fall.
INSTALLATION
Page 10
Page 11
INSTALLATION
INSTALLATION
INSTALLATION
Pressure & Temperature Relief Valve
Important
This safety device is also pre-set at the factory and relieves before the temperature
reaches 100°C. It is also a Pressure Relief Valve, and is pre-set to 6 bar.
Failure to follow the drain down procedure will
invalidate the warranty. (see page 22)
Immersion Heaters
NEVER
Earth connection point (Green/Yellow)
Thermostat Dial for commissioning purposes Thermostat pocket
Cable restraining clamp
E
3
4
5
E
2
1
B
Manual reset Button for overheat thermostat
A
Warming/Overflow
Pipe
Motorised Valve
(Energy cut-out)
F & E Cistern
Gate Valve
(Not supplied)
Motorised Valve
(Not supplied)
Boiler
These are 3kW 240V AC heaters and incorporate a thermostat and a manually reset
energy cut-out which operates at 85°C. They have incalloy elements to prolong their
life expectancy in aggressive water conditions. Please refer to tables 1 and 2 to clarify
how many off peak and on peak immersions are included with the unit you require.
Schematic Sealed Primary System
External wiring to the immersion heaters must be in accordance with the relevant IEE
Wiring Regulations and the circuit must be protected by a suitable fuse and a double
pole isolating switch.
Motorised Valve
(Energy cut-out)
The correct method of terminating the wiring to the immersion heater is shown above.
Gate Valve
(Not supplied)
Usage of the product in non-domestic commercial applications can be extremely
intensive and stressful to various components.
Line Strainer
This is integral within the combination inlet group to reduce the likelihood of
contaminants fouling the valve seat. Following installation this line strainer must be
cleaned and replaced. This needs to be carried out on a regular basis. as part of the
annual maintenance/service check.
Expansion
Vessel
Safety Valve
Gauge
Motorised Valve
(Not supplied)
Tundish
This is to allow the discharge from any Relief Valve to be seen. It must be fitted away
from any electrical devices. See page 14 for discharge pipework details.
Pump
Boiler
Primary Circuit
Sealed Primary Circuit
Any boiler used must be fitted with an over
temperature cut-out. Unvented primary circuits
may be filled or replenished by means of a
temporary connection between the circuit and
a supply pipe provided a ‘Listed’ double check
valve or some other no less effective backflow
prevention device is permanently connected
at the inlet to the circuit and the temporary
connection is removed after use.
Alternatively, a CA device can be used, which
will allow the system to be permanently
connected to the cold mains supply. The
primary system can then be topped up, when
required, in the same way as an open vented
system fitted with an F&E Cistern.
All our cylinders are tested to BS EN 12897 at
15 l/mim at which they exceed the minimum
requirements for heat up performance and reheat
in less time than the maximum reheat times.
The immersion heaters must be earthed and they must be isolated from the mains before
the cover is removed on every occasion. Replacement immersion heaters should be
obtained from Gledhill Building Products Limited.
Solar Thermistors / sensors
In extreme situations where excessive flow
rates, above 25 l/min are present, then a gate
valve on the return from the cylinder to the
boiler, before it joins the central heating return,
may be required to reduce excessive flow rates
and therefore any potential noise problems.
Care must be taken to ensure that the solar probes are fully inserted into the pockets
provided.
Page 12
Safety
Gate Valve
Safety
INSTALLATION
The boiler and primary/heating systems should
be sized and installed in accordance with BS
EN 12828:2003, BS EN 12831:2003 & BS EN
14336:2004.
It is essential that the circuit between the boiler
and the Stainless Lite Horizontal is pumped.
The motorised zone valve supplied should
be fitted adjacent to the unit and controlled
by the cylinder thermostat supplied. The
thermostat and motorised valve must be wired
so that they both switch off should an overheat
situation develop. It is important to follow the
wiring diagram in the Wiring Section of these
instructions.
Pump
Immersion element spade connectors
Heating/primary Systems
Stainless Lite Horizontal is fitted with a Combined
Temperature/Pressure Relief Valve to cope
with any increase in system temperature and
pressure above the design limitations, when
used with boilers up to 45kW output, which is the
maximum allowed by section G3 of the Building
Regulations. The primary water temperatures
should be controlled as outlined below.
Minimum
distance as
required by
boiler
manufacturers
instructions
In line with good plumbing practice, use of
excessive flux should be avoided.
Neutral connection point (Blue)
Live connection point (Brown)
drain the cylinder of hot water and
then close all cylinder inlets and
outlets.
REASON as the air remaining in the cylinder
cools the pressure inside the
cylinder will fall below atmospheric
and cause damage to the cylinder.
NEVER close the cold main and drain the
cylinder via any tap connected to it.
REASON as the water drains, the pressure
inside the cylinder may decrease
below atmospheric and this may
cause damage to the cylinder.
Schematic Open Vented Primary System
Page 13
INSTALLATION
INSTALLATION
INSTALLATION
Schematic Solar Direct System
Solar Panel
Solar
Controller
Expansion
Vessel
All components in a solar primary system must
be marked or identifiable in such a way that
their design pressure and temperature can be
readily determined.
A pressure and temperature relief valve to
control the risk of over-pressure in system
components should be fitted. A termination
from a pressure and temperature relief valve
should minimise the risk of damage to persons
or materials. Suitable locations are into a
high temperature receptacle, an internal
gully or externally at ground level. High level
termination from walls or on roofs could cause
injury to people or animals below if the valve
were to release scalding water and steam.
Solar Pumping Station
The pipe leading to the safety device and the
collector should be of rigid and non-deformable
construction, without any possibility of
restriction or disclosure by any other fitted
component.
Motorised Valve
Energy cut-out
(Not supplied)
A more detailed diagram of our recommended
arrangement for a typical solar system is shown
on page 20.
Schematic Solar Indirect System
Solar Panel
Motorised Valve
Energy cut-out
(Not supplied)
Solar
Controller
Expansion
Vessel
Solar Pumping Station
Motorised Valve
Energy cut-out
(Not supplied)
This provides all the necessary controls and
safety devices necessary for the solar system i.e.
the two port zone valve is wired as an energy
cut out and the pump/valve will only allow heat
transfer as required under control of the solar
controller.
The solar pocket provided accommodates an
8mm diameter sensor which, with the sensor
located in the solar collector (or in the flow
pipe immediately adjacent to the collector),
will provide the information required by the
solar controller.
Note: If the motorised valve is not used then
any factory built hydraulic station for solar
use MUST be fitted with suitable non-return
valves in both flow and return pipes to
prevent gravity circulation when the pump
is not running.
If there is a possibility of the solar controller that
you install causing the cylinder temperature to
exceed 80°C, under normal working conditions,
then a Solar tempering valve must be fitted to
the domestic hot water outlet of the cylinder.
This must limit the hot water temperature to a
maximum of 60°C.(ref building regulations part
G3 3.63). This product can be supplied from
Gledhill part number XC007 which has a inlet
temperature limit of 100°C. Suitable plumbing
configurations for installing this valve are
shown on page 19 of this manual. NB. Any fitted
Overheat thermostats may require resetting
in the winter months to enable backup heat
sources to heat the cylinder.
INSTALLATION
Page 14
✗
Figure 1: Cold port of the blending valve connected to mains supply
NOT ALLOWED
Mixed HW out
Mains CW in
Figure 2: Cold port of the blending valve connected to balanced cold
supply - NON-RETURN VALVE MUST BE FITTED
Mixed HW out
Non-Return Valve
(must be fitted)
Mains CW in
Fitting Blending Valves To The Unvented
Stainless Lite Horizontal Appliances
When fitting a blending valve to the unvented
appliances, it is important that the installation
does not contravene the G3, WRC and Health
and Safety directives or the manufacturers
recommendations. If this is the case, then
the warranty should be null & void. The key
requirements to comply with these regulations
are: 1. Any fitting or material in contact with
potable water (e.g. a blending valve) must
be approved by WRC or an equivalent body.
2. Connections or wiring arrangements must
not bypass any safety devices.
3. Any expansion due to heating must not be
allowed to expand back into the cold mains.
4. The settings of any safety devices must not
be tampered with or adjusted.
Figure 1 shows the cold water port of the
blending valve connected to the mains cold
water supply before the inlet control group.
This arrangement is completely unacceptable
and illegal because: • the water is allowed to expand in to mains
cold water supply.
• the vessel will be charged to the incoming
mains supply which may be considerably
higher than the working pressure of the
vessel.
If this arrangement is used then the Gledhill
warrant will not be valid.
Figures 2 & 3 opposite shows how the blending
valve can be piped onsite.
Figure 3: Cold port of the blending valve connected to mains supply
to the vessel after the inlet control group
Mixed HW out
Mains CW in
Page 15
Figure 2 shows the cold water port of the
blending valve connected to the balanced
cold water outlet. This arrangement will only
be acceptable if a WRAS approved non-return
valve is fitted, otherwise: • during the heating cycle, the water will
expand back into the mains supply, as the
regulating valve must not be relied upon
to act as a check valve under all operating
conditions.
• depending upon the characteristics of the
blending valve, hot water may also flow from
the balanced cold water taps.
Figure 3 shows the cold port of the blending
valve connected to the cold water supply to the
vessel after the inlet control group. This should
be the preferred method. It is recommended
that the installer should ensure that there is no
gravity circulation in the pipework connected to
the cold port. If necessary, this can be achieved
by fitting a non-return valve or using a thermal
trap.
INSTALLATION
INSTALLATION
INSTALLATION
ON
Control Stat
ELECTRONICS
L
Bl
1
2
3
Br
4
Br
Br
G/Y
3
Bl
1
C
4
G/Y
B
Br
*Br
3 core flex
4 core cable
Br
B Br
Br
G/Y
Bl
Danfoss
WB12
Wiring
Centre
1
Br
2
3
Br
*Br
B
4
5
6
Br
Bl
G/Y
Br
L
N
E
HTG
VALVE
G/Y
Bl
7
B
8
Br
Bl
9
10
Or
Br
HW
VALVE
Br
Bl G/Y Gr
Or
Br
V4043A
TWO PORT
ZONE VALVE
Br
Bl G/Y Or Gr
Bl
L
V4043A
TWO PORT
ZONE VALVE
B
DHW
A
G/Y
N
E
Boiler
Pump
B
Standard 10 way
wiring junction box
(Not supplied)
Typical schematic wiring diagram for an unvented installation
Br
E
N
Bl G/Y
DRN.
DATE
APPROVED
07-12-10
ISSUE No : 5
Room Thermostat
Control Stat
1
2
3
3
C
4
2
1
Br
G/Y
Bl
G/Y
B
Br
B
N
230 VAC 5 amp
Mains Supply
2
Br
3
Br
4
B
5
*Br
6
Br
Bl
G/Y
Wh
L
N
E
HTG
VALVE
G/Y
Bl
7
Br
8
Bl
G/Y
B
9
10
Br
13
12
11
B
Br
Bl G/Y Gr
Or
Br
Gr
Brown
Black
Or
Orange
Y
Yellow
Wh
G/Y
White
Green / Yellow
Gr
Grey
G
Green
The electrical installation must
comply with IEE requirements.
For electrical installation
* Blue core used
refer to BS7671
from standard 3 core
B
HW
VALVE
V4073A
MID POSITION
ZONE VALVE
12 13
Or
Or
Gr
*Br
4 core cable
4 core cable
Br
Red
Blue
Br
B
flex please ensure you
use brown sleeving at
both terminating ends
to identify core potential.
Provide extra core
from terminal 12 to
L-P connection on
the boiler (shown
dotted) and remove
the boiler pump link
if the boiler has an
independant
pump output.
Br
Bl G/Y Or Gr
GAS BOILER
Bl
L
G/Y
N
E
L
V4043A
TWO PORT
ZONE VALVE
Note: Do not attempt
the electrical work unless
you are competent to carry
out to the above standard
Boiler Permanent Live
Boiler Neutral
Boiler Earth
5
4
3
G/Y
Bl
1
2
C
R (Supplied with stat)
4
Br
2
R
Bl
S3
S2
L
N
A
HTG
B
A
DHW
S1
1 2
Mains Supply
Fed Via Double
Pole Isolator
230 VAC ~ 5 Amps
Page 16
Page 17
Boiler
Pump
B
Br
Bl G/Y
DRN.
DATE
APPROVED
N. Fursman
07-12-10
ISSUE No : 4
B
Br
E_P
ON
Overheat Stat
N_P
OFF
WIRE COLOUR LEGEND
Dual Cylinder Stat
Spade
connectors
required
for earth
connections
6
7
L
1
L
Bl G/Y
Boiler Switch Live Demand
Boiler Controlled Pump
ON
Br
Br
2
Br
N. Fursman
9
8
N
Bl
1
C 1 2 C 1
o
+ C
B
L_P
OFF
CH
1
o
Green
SL_B
HW
ELECTRONICS
+ C
N R2 N R1 N L
14 15 16 17 18 19 20
Grey
G
E
Dual Thermostat
10
Central Heating Control
5 Amps
7 8
Gr
(Y-PLAN) WIRING DIAGRAM WITH 3 PORT VALVE/2 PORT SAFETY VALVE AND BOILER CONTROLLED PUMP OVERRUN OPTION
Wh
3 4 5 6
Solar Controller
White
Green / Yellow
N
Solar Coil
Stainless Lite Horizontal
Unvented Cylinder
Mains Supply
Fed Via Double
Pole Isolator
230 VAC ~ 5 Amps
Typical schematic wiring diagram for an unvented installation
INSTALLATION
Yellow
Wh
G/Y
GAS BOILER
L
HTG
A
N
Orange
Y
Note: Do not attempt
the electrical work unless
you are competent to carry
out to the above standard
5 Amps
L
Or
flex please ensure you
use brown sleeving at
both terminating ends
to identify core potential.
Provide extra core
from terminal 12 to
L-P connection on
the boiler (shown
dotted) and remove
the boiler pump link
if the boiler has an
independant
pump output.
12
11
Brown
Black
The electrical installation must
comply with IEE requirements.
For electrical installation
* Blue core used
refer to BS7671
from standard 3 core
Or
Gr
G/Y
C
2
1
Br
B
Boiler Switch Live Demand
Boiler Controlled Pump
N
2
Red
Blue
SL_B
1
R
Bl
E_P
OFF
WIRE COLOUR LEGEND
Dual Aqau Stat
Overheat Stat
N_P
ON
Room Thermostat
L_P
CH
Boiler Permanent Live
Boiler Neutral
Boiler Earth
A
OFF
Schematic Showing Solar Wiring Requirements
B
TWO PORT
ZONE VALVE
Anti Gravity
Check Valve
This valve must be fitted on
the return to the solar panels
and be suitable for higher
temperatures operation
(Not
supplied)
Anti Gravity
Check Valve
T
T
Solar
Pumping
Station
No isolation valve
should be installed
between the solar
circuit and the safety
valve (pressure relief
valve)
S1
HW
Central Heating Control
Pressure
Relief Valve
1 bar
(S-PLAN) WIRING DIAGRAM WITH TWO 2 PORT VALVES AND BOILER CONTROLLED PUMP OVERRUN OPTION
Bl G/Y
INSTALLATION
INSTALLATION
INSTALLATION
Connections can come loose in transit, and all should be checked before installation.
The control thermostat of the immersion heaters for direct heating of our cylinders
are set at 60°C. The control thermostat for indirect heat exchanger heat up of our
cylinders are usually set at between 60°C - 65°C. During commissioning the actual
temperature that the cylinder reaches when the thermostat(s) operate should be
tested and adjusted so that it achieves a minimum of 60°C. This temperature needs
to be achieved on a regular basis.
Check the pressure on the air side of the expansion vessel = 3 bar. This must be done
when the water in the cylinder is free to expand in atmospheric pressure or the cylinder
and relevant pipe work is empty.
Check that the drain cock is closed, and open all the cold and hot water taps and other
terminal fittings. Allow the system to fill with water, and to run until there is no air left
in the system. Close the taps and inspect the system closely for leaks.
Manually open the Relief Valves one by one and check that water is discharged and
run freely through the tundish and out at the discharge point. The pipework should
accept full bore discharge without overflowing at the tundish, and the valve should
seat satisfactorily.
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 should be done performed as per BS
EN 806:4 2010 section 6.2.
Allow the cylinder to heat to normal working temperature, then thoroughly flush the
domestic hot and cold water pipework through each tap.
NOTE: If this appliance is to be installed in other than a single domestic dwelling ie. in
an apartment block or student flats etc., the hot and cold water system will need to be
disinfected in accordance with BS EB 806:4 2010 section 6.3 and the Water Regulations.
Because the Stainless Lite Horizontal appliance is stainless steel, the use of chlorine as
the disinfection agent can cause damage unless the appliance is adequately flushed
and refilled with the mains water immediately on completion of the disinfection
procedure. Damage caused through a failure to do this adequately will not be covered
by the warranty.
For the reasons mentioned, we recommend the
use of a non chlorine based disinfectant such as
Fernox LP Sterox as manufactured by Cookson
Electronics when carrying out disinfection of
systems incorporating these appliances.
Your Stainless Lite Horizontal unvented cylinder is automatic in normal use, but
requires routine maintenance which is normally carried out at least annually along
with the boiler service. The maintenance must be carried out by a suitably competent
tradesperson who is qualified to work on unvented cylinders. The checks/work needed
are listed in the maintenance part of these Instructions.
Remove the filter from the combination inlet
group clean and replace. Refill the system and
open all hot taps until there is no air in the pipe
work. ENSURE CYLINDER IS DRAINED PRIOR
TO CHECKING OR REMOVING FILTER FROM
THE COMBINATION INLET GROUP.
The control thermostat of the immersion heaters for direct heating of our cylinders
are set at 60°C. The control thermostat for indirect heat exchanger heat up of our
cylinders are usually set at between 60°C - 65°C. During commissioning the actual
temperature that the cylinder reaches when the thermostat(s) operate should be
tested and adjusted so that it achieves a minimum of 60°C, in order to comply with
the Legionella pasteurisation requirements.
Allow the cylinder to heat to normal working
temperature with whatever heat source is to be
used, and check again for leaks. The pressure
relief valve or the P&T valve should not operate
during the heating cycle. If the P&T valve
operates before the pressure relief valve due
to high pressure, check that the inlet control
group is fitted correctly.
When initially opening the taps, a small surge in flow may be experienced, which
disappears as the pressure in the system stabilises. This is quite normal with these
types of systems and does not indicate a fault.
The boiler/heating systems should be filled and
commissioned in accordance with good practice
following the guidance in BS 7593:2006/the
boiler manufacturers instructions. This includes
adequately flushing the system to remove any
debris that may have been introduced during
installation/maintenance.
NOTE
At the time of commissioning, complete all
relevant sections of the Benchmark Checklist
located on the inside back pages of this
document.
In some areas the water will initially appear cloudy, but will quickly clear when left
to stand. This is nothing to be concerned about and is due to aeration of the water.
WARNING - If water is seen flowing through the tundish, this indicates a fault condition
which needs action.
If the discharge is hot and continuous, turn the boiler and/or the immersion heaters
off, but do not turn off the cold water to the appliance until the discharge is cold.
Note: The discharge may stop by itself as the discharge cools.
If the discharge is cold and intermittent, no immediate action is needed but this
indicates a problem with the expansion vessel.
However, in both cases you must call the registered installer / a suitably qualified,
competent tradesperson, advise them that you have an unvented cylinder and
request a maintenance visit.
DO NOT, at any time, tamper in any way with the safety valves or overheat thermostats/
wiring.
This must be completed during commissioning
and left with the product to meet the Warranty
conditions offered by Gledhill.
IMPORTANT - DRAIN DOWN PROCEDURE
1 Switch off both the boiler and the immersion heater
2 Open the nearest hot tap and run all hot water until cold, then close it
3 Close the incoming cold main at the stop tap
4 Hold open the pressure and temperature relief valve until water stops
discharging into the tundish and leave it open
5 Open the cold taps starting from the highest point and working down to
the lowest tap, leaving them open
6 When the cold taps have stopped draining, open the hot taps starting from
the highest and working down to the lowest tap
7 Open the drain cock and ensure the pressure and temperature relief valve
is held open until the cylinder is empty
COMMISSIONING
Page 18
Page 19
USER INSTRUCTIONS
SERVICING AND MAINTENANCE
The Registered Installer is responsible for the safe installation and operation of the
system. The installer must also make his customer aware that periodic maintenance
of the equipment is essential for safety.
Maintenance periods will vary for many reasons. Gledhill Building Products Ltd
recommend a maximum of 12 months to coincide with boiler maintenance.
Experience of local water conditions may indicate that more frequent maintenance is
desirable, eg, when water is particularly hard, scale-forming or where the water supply
contains a high proportion of solids, eg, sand. Maintenance must include the following:
1. Check and clean filter
2. Manually check the operation of the temperature relief valve.
3. Manually check the operation of the expansion relief valve.
4. Check discharge pipes from temperature and expansion relief valves are free from
obstruction and blockage and are not passing any water.
5. Check the condition and if necessary descale the heat exchangers in hard water
areas.
6. Check that water pressure downstream of pressure reducing valve is within the
manufacturers limits.
7. Check operation of motorised valve.
8. Check the pressure on the air side of the expansion vessel. This must be done
when the volume in the cylinders is cold.
9. Check and advise the householder not to place any clothing or other combustible
materials against or on top of this appliance.
10.On completion of the work, fill in the Benchmark Service Record towards the back
of this manual.
IMPORTANT NOTE
When draining down the appliance for any reason, the instructions
provided in the Commissioning Section (Page 18) MUST be followed to
prevent potential damage to the cylinder.
After servicing, complete the relevant Service Interval Record section of the Benchmark
Checklist located on the inside back pages of this document.
SERVICING AND MAINTENANCE
Scale
In hard water areas it is recommended that an in-line scale inhibitor is fitted. Reducing
the temperature of the stored water will reduce the rate at which scale forms. If the
recovery rate is badly affected, this is an indication that scaling may have occurred.
In this event, follow the procedures as recommended by a reputable Water Treatment
Company.
General
No water at the tap. Check that the mains water supply is turned ON. Check the line
strainer is not blocked. Check that the combination valve has been fitted so that water
is flowing in the correct direction.
If the water at the tap is cold, ensure that the boiler has been switched ON and is
working correctly. Check that there are no air locks in the primary system. ISOLATE
THE UNIT AT THE MAINS ELECTRIC SUPPLY AND THEN CHECK THE FOLLOWING:
i. The cylinder thermostat
ii. The thermal cut-out, which can be re-set by pushing the red button
iii. The motorised valve
iv. The boiler thermostat
v. The boiler thermostat cut-out (if fitted)
ANY ENERGY CUT-OUT MUST NEVER BE BY-PASSED UNDER ANY CIRCUMSTANCES.
If the units are not getting hot and the heat source is electrical, ensure that the
immersion heaters are isolated from the mains before re-setting the energy cut-out.
If the immersion heater(s) need replacing this should be done with the units supplied
from Gledhill Building Products Limited. Same day despatch to approved installers
can be arranged by telephoning 01253 474402.
Discharge From Relief Valves
If cold water is discharging from the expansion relief valve into the tundish check the
pressure on the expansion vessel when cold and recharge if necessary.
If the fault continues and the problem cannot be stopped by operating the easing
control a few times then either the Pressure Reducing Valve or the Relief Valve may
be at fault. If the cold water pressure is too high, this would suggest that the Pressure
Reducing Valve is at fault and the Gledhill approved replacement should be fitted.
If the pressure is correct then the Relief Valve will require replacing with a Gledhill
approved component.
See Commissioning for drain down procedure.
If there is an overheat fault and very hot water is being discharged, turn off the heat
source, but not the water supply.
When the supply is cool, check thermostats and energy cut-outs in the boiler and
immersion heaters and replace the faulty component with a unit supplied by Gledhill
and check that it works correctly before returning the system to full operation.
SERVICING AND MAINTENANCE
Page 20
Page 21
FAULT FINDING
SERVICING AND MAINTENANCE
SERVICING AND MAINTENANCE
FAULT - No Hot Water (Direct)
FAULT - Poor Water Flow at Hot Taps
START
START
YES
Is incoming mains supply
flow/pressure adequate?
NO
Is power on to elements?
Switch on
NO
Water service check by
supply company required
YES
YES
Is control temperature
set at 60ºC - 65ºC?
Is in-line strainer
(in combination valve)
clean?
NO
Re-set
NO
Clean or replace strainer
as appropriate
YES
YES
Is pressure reducing valve
(in combination valve)
working?
NO
Has high limit tripped?
Replace element
NO
Service /replace PRV
as appropriate
YES
YES
Is system free from
restrictions/blockages?
Check wiring links
continuity and Re-set
NO
Clear obstructions
YES
END
END
FAULT - No Hot Water (Indirect)
FAULT - Water Discharge Into Tundish
START
START
YES
NO
Is boiler on?
Switch on
NO
YES
Is pressure downstream
of pressure reducing valve
correct?
YES
Is hot water programmer
in ‘on’ position?
NO
Is valve seal and seat
clean & undamaged?
Set programmer
YES
NO
Clean or replace
as required
YES
Is zone valve in
correct position?
NO
Re-set, check wiring &
plumbing is correct
Is heater operating at
less than 60ºC?
YES
NO
Is control temperature
set at 60ºC - 65ºC?
YES
Is expansion vessel
charge pressure correct?
NO
YES
NO
YES
Re-set
Recommission
expansion
vessel pressure
Replace ERV/TPRV
Is ERV/TPRV
discharging?
Re-set temperature
YES
NO
Has high limit cut out?
YES
Is all wiring to the
controls ok?
NO
NO
Re-wire
Replace PRV
END
YES
NO
Re-set
Replace thermostat
END
FAULT FINDING
Page 22
Page 23
FAULT FINDING
SERVICING AND MAINTENANCE
APPENDIX
Water Savings
SPARE PARTS LIST
Description
Quantity
Stock Code No.
1
3kW immersion element
1
SH005
2
Drain cock
1
GS028
3
Lift up pressure and temperature relief valve 6 bar 92-95°C (Long probe)
1
SG025
4
Inlet group set at 3 bar c/w expansion relief valve set at 4.5 bar
1
SG022
5
¾” flexible hose
1
SG024
7
12 litre expansion vessel
1
XG190
8
18 litre expansion vessel
1
XG191
9
24 litre expansion vessel
1
XG192
10
35 litre expansion vessel
1
XG193
11
Wall mounting bracket for 35 litre expansion vessel
1
XG058
12
22mm 2 port valve (indirects only)
1
XG083
13
Junction wiring box (12 way)
1
XG129
14
Control and overheat limit thermostat
1
XG212
15
15mm x 22mm tundish
1
XG207
16
Immersion heater thermostat
1
SH006
Water Related Costs Can Be Reduced By Good Plumbing Practice
1
2
1
1
2 tap
half open
Unregulated
Over
20 l/m
Fitted with regulator
5, 6 or
8 l/m
2
2
TAPS & MIXERS
4 Fixing Options For Taps & Mixers
1. MK Range - Combined Regulators & Aerator
for screwing onto Taps & Mixers with internal
or external threads on their noses. Anti Vandal
models also available.
Unregulated
25 - 30 l/m
Regulated
10 - 12 l/m
SHOWERS
Vast quantities of water are needlessly run off to waste due to Taps, Mixers and Showers
discharging flow rates far in excess of the rates required for them to perform their duties.
The contrasting flow rates shown on this leaflet clearly illustrate the savings that can
be made whilst still providing a good performance.
British made Aquaflow Regulators provide constant flow rates by automatically
compensating for supply pressure changes between 1 bar & 10 bars.
To facilitate installation into the wide range of plumbing equipment which is
encountered in the U.K, Four Fixing Options are available:-
2. MR05-T Range - Internal Regulators. Pushfit into Tap or Mixer seats. Produced in
three sizes - 12.5mm (BS1010), 12mm &
10mm, Flangeless models also available for
Taps with Low Lift washers.
3. MXF Standard Range - Screw on tail
models for Taps & Mixers. Fix onto the tails
before fitting the tap connectors. Available
in 3/8", 1/2", 3/4" and 1" BSP.
4. Compression Fitting Range - “In Line”
regulators housed in 15mm & 22mm CXC
Couplers & Isolating Valves. “ ”UK WFBS listed
by the Water Research Centre. Isolation valves
available for slotted screwdriver operation or
with coloured plastic handles. Now available
also in plastic bodied push-fit couplers &
valves.
3
3
Options For Showers
1. MXF “DW” Range - For fitting behind Fixed Shower Heads or onto Flexible Hoses
for Handshowers (preferably onto the inlet end when lightweight hoses are used).
1
2. Compression Fitting Range. “In Line” regulators as in Option 4 for Taps & Mixers.
4
Information by courtesy of
AQUAFLOW REGULATORS LTD
Haywood House, 40 New Road, Stourbridge, West Midlands DY8 1PA
TELEPHONE (01384) 442611 FAX: (01384) 442612
SHORT PARTS LIST
Page 24
Page 25
APPENDIX A
APPENDIX
WARRANTY INFORMATION
MANUAL HANDLING OF APPLIANCE PRODUCTS
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.
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:
Individual capability
a.
b.
c.
d.
e.
Balance
Position of back
Positioning of the arms and body
The hold
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.
c.
d.
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.
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.
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.
The hold - Before lifting ensure you have a good hold.
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.
Gledhill Building Products guarantees the StainlessLite cylinder and components
against material defect or manufacturing fault for a period of two years from the
date of purchase. The two year warranty on the stainless steel inner cylinder will
be extended to twenty five years in domestic properties on the registration of the
cylinder (see documentation enclosed with the unit).
The above product guarantees are valid provided:
•
•
•
•
•
•
•
•
•
•
It has been installed by a competent installer in accordance with the instructions
detailed in our installation manual and all relevant Codes of Practice and
Regulations in force at the time of installation.
No factory fitted parts have been removed for unauthorised repair or replacement
and the product has not been modified - other than by Gledhill.
Any replacement parts used should be authorised, approved Gledhill spare parts.
The cylinder has only been used for the storage of potable water supplied form the
public mains (-max 200mg/litre chloride).
It has not been subject to wrong or improper use, left uncared for, or subjected to
scale or frost damage.
The unit has been serviced annually by a competent, licenced engineer in
accordance with the requirement set out in the manual.
The Benchmark TM Commissioning Checklist Service Record included in our manual
has been completed and updated after each annual service.
Any disinfection has been carried out strictly in accordance with BS6700.
For heavy use installation where constant usage / reheat is required titanium
immersion heaters should be fitted.
The registration document enclosed with the unit is completed and returned
within 60 days of purchase by the owner. Evidence of purchase and date of supply
must be submitted upon making a claim.
Guidance in the event of a problem
If you have a problem in the first year, please contact the plumber who fitted the unit.
After the first year, you should contact the plumber who carries out the annual servicing
for you.
Action in the event of component failure within warranty period
Failed components should be returned via the local authorised supplier. A nominal
charge of £30 will be made which is refunded in full by Gledhill on receipt of the original
part and proof of purchase.
Action in the event of inner vessel cylinder failure within warranty period
Since the full diagnosis of cause of failure is usually only possible with a laboratory
test environment where a product can be fully assessed and tested, we will require
the return of a cylinder which develops a leak for inspection. Providing our expert
examination confirms a manufacturing fault or defect, credit will then be raised against
the cost of the original cylinder.
Please note that a copy of the completed annual service record and commissioning
checklist should be submitted with any claim.
As a HWA Charter Member we endeavour to provide consumers quality assurance,
product satisfaction, and confidence in Gledhill, that we will deliver a service
beyond just supplying the product.
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.
APPENDIX B
Page 26
Page 27
WARRANTY INFORMATION
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).
TERMS AND CONDITIONS
Page 28
(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.
(c) StainlessLite Unvented Cylinders
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
(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.
(c) Our total liability to the purchaser over and above any liability to replace under the Guarantees (whether
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.
(c) until property in the goods supplied hereunder passes to the Purchaser in accordance with paragraph (2)
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
Page 29
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.
TERMS AND CONDITIONS
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.
SERVICE RECORD
MAINS
PRESSURE HOT WATER STORAGE SYSTEM COMMISSIONING
CHECKLIST
Customer name:
Telephone number:
Address:
It is recommended that your hot water system is serviced regularly and that the appropriate Service Record is completed.
This Commissioning Checklist is to be completed in full by the competent person who commissioned the storage system as a means of
Cylinder Make and
Model
demonstrating
compliance
with the appropriate Building Regulations and then handed to the customer to keep for future reference.
Service Provider
Cylinder Serial Number
Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.
Commissioned by (PRINT NAME):
Registered Operative ID Number
Company name:
Telephone number:
Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.
Company address:
Customer name:
SERVICE 01
Telephone number:
Commissioning date:
Address:
To be completed by the customer on receipt of a Building Regulations Compliance Certificate*:
Cylinder Make and Model
Building Regulations Notification Number (if applicable)
Cylinder Serial Number
ALL
SYSTEMSby
PRIMARY
SETTINGS (indirect heating only)
Commissioned
(PRINT NAME):
Registered Operative ID Number
Is
the primary
circuit a sealed or open vented system?
Company
name:
Sealed
Telephone
number:
Date:
SERVICE 02
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature
Date:
Open
What is theaddress:
maximum primary flow temperature?
Company
°C
Commissioning date:
ALL SYSTEMS
To
be is
completed
by the
customer
on receipt
of aatBuilding
Compliance Certificate*:
What
the incoming
static
cold water
pressure
the inletRegulations
to the system?
bar
Building
Regulations
Notification
Number (ifdebris
applicable)
Has a strainer
been cleaned
of installation
(if fitted)?
Yes
No
Signature
Is theSYSTEMS
installationPRIMARY
in a hard water
area (above
200ppm)?
ALL
SETTINGS
(indirect
heating only)
Yes
No
Yes
No
Open
SERVICE 03
If yes,
has a water
scale
reducer
been vented
fitted? system?
Is
the primary
circuit
a sealed
or open
Sealed
What is
type
scale reducer
hasflow
been
fitted?
What
theofmaximum
primary
temperature?
°C
What is the hot water thermostat set temperature?
ALL SYSTEMS
What is the maximum hot water flow rate at set thermostat temperature (measured at high flow outlet)?
What is the incoming static cold water pressure at the inlet to the system?
Time and temperature controls have been fitted in compliance with Part L of the Building Regulations?
Has a strainer been cleaned of installation debris (if fitted)?
Type of control system (if applicable)
Is the installation in a hard water area (above 200ppm)?
Is the cylinder solar (or other renewable) compatible?
If yes, has a water scale reducer been fitted?
What is the hot water temperature at the nearest outlet?
What type of scale reducer has been fitted?
All appropriate pipes have been insulated up to 1 metre or the point where they become concealed
What is the hot water thermostat set temperature?
°C
Y Plan
Yes
S Plan
Yes
Yes
Yes
Yes
°C
UNVENTED
SYSTEMS
What
is the maximum
hotONLY
water flow rate at set thermostat temperature (measured at high flow outlet)?
I/min
Whereand
is the
pressure reducing
valvebeen
situated
Time
temperature
controls have
fitted(ifinfitted)?
compliance with Part L of the Building Regulations?
What of
is control
the pressure
reducing
valve setting?
Type
system
(if applicable)
I/min
bar
Yes
No
Other
No
No
No
°C
Y Plan
Has
combined
temperature
and pressure
relief valve and expansion valve been fitted and discharge tested?
Is
thea cylinder
solar
(or other renewable)
compatible?
S Plan
bar
Other
Yes
Yes
No
No
The tundish
andwater
discharge
pipework
been connected
What
is the hot
temperature
at have
the nearest
outlet? and terminated to Part G of the Building Regulations
°CYes
Areappropriate
all energy sources
fitted
withinsulated
a cut out up
device?
All
pipes have
been
to 1 metre or the point where they become concealed
Yes
No
Yes
Has the expansion vessel or internal air space been checked?
UNVENTED SYSTEMS ONLY
Yes
No
SERVICE 04
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature
Signature
SERVICE 05
Yes
Date:
Date:
SERVICE 06
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature
Signature
Date:
Date:
THERMAL
Where
is theSTORES
pressureONLY
reducing valve situated (if fitted)?
What is
store
is achievable?
What
the temperature
pressure reducing
valve setting?
bar
Whataiscombined
the maximum
hot water
temperature?
Has
temperature
and
pressure relief valve and expansion valve been fitted and discharge tested?
Yes
The
and discharge pipework have been connected and terminated to Part G of the Building Regulations
ALL tundish
INSTALLATIONS
No
°C
°C
Yes
Are
sourcescomplies
fitted withwith
a cut
device? Building Regulations
The all
hotenergy
water system
theout
appropriate
Yes
No
Yes
Has
the expansion
vessel
or internal
air space been
The system
has been
installed
and commissioned
in checked?
accordance with the manufacturer’s instructions
Yes
No
Yes
The
systemSTORES
controls have
been demonstrated to and understood by the customer
THERMAL
ONLY
Yes
The
literature,
including Benchmark Checklist and Service Record, has been explained and left with the customer
Whatmanufacturer’s
store temperature
is achievable?
Yes
What is the maximum
hot water
temperature?
Commissioning
Engineer’s
Signature
SERVICE 07
°C
Date:
SERVICE 08
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature
Date:
°C
Customer’s
Signature
ALL INSTALLATIONS
(To
confirm
satisfactory
demonstration
receipt ofBuilding
manufacturer’s
literature)
The hot water system complies
with theand
appropriate
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
Signature
The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer
Yes
SERVICE 09
Commissioning Engineer’s Signature
Customer’s Signature
(To confirm satisfactory demonstration and receipt of manufacturer’s literature)
Date:
SERVICE 10
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature
Signature
Date:
*All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a
Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer.
www.centralheating.co.uk
© Heating and Hotwater Industry Council (HHIC)
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.
*All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a
Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer.
BENCHMARK
© Heating and Hotwater Industry Council (HHIC)
Page 30
www.centralheating.co.uk
Page 31
BENCHMARK
Protect your Gledhill
product after your
initial warranty period
On expiry of your initial warranty period, Gledhill Response Limited would be
pleased to provide further customer support with a range of services including:
Low cost annual repair and maintenance contracts direct from Gledhill
Annual servicing and safety checks
Expert response to ‘out of warranty’ breakdowns at fixed charges
Please call 08445 679898 or visit www.gledhill.net for further details
For any spare part requirements on
this product simply scan the
QR code using your smart phone app
or go to www.gledhill-spares.net
Gledhill Building Products Limited
Sycamore Estate, Squires Gate, Blackpool FY4 3RL Tel: 01253 474550 Fax: 01253 474551 sales@gledhill.net
After Sales Technical Support Tel: 01253 474584
Gledhill Building Products produce cylinders for use with a wide range of heat sources including;
Gas and oil boilers
Ground source heat pumps
Electricity
Solar energy
Air source heat pumps
Wood burning stoves
Further information on Gledhill products can be found at www.gledhill.net
“Only the best
is acceptable”
FM 02057
Due to a programme of continuous improvement Gledhill Building Products reserve the right to modify products without prior notice.
It is advisable to check the product technical detail by using the latest design and installation manuals available from our technical support team or on our website.
It is an offence to copy or adapt this document without consent of the owner.