Renewable Range
Cylinders providing a perfect partnership with renewable energy inputs
S U P P L I E R S
T O
T H E
M E R C H A N T
T R A D E
F O R
O V E R
3 5
Y E A R S
Renewable Range Gledhill - The Cylinder Specialist
Thinking of using renewable energy?
The Gledhill name is synonymous with a family of water
Whatever the alternative energy source, Gledhill Building
heating and storage products that lead the field in terms
Products have a cylinder to work with it.
of innovation and quality. We are respected for our worldleading range of primary stores and unvented cylinders,
The table opposite shows which product range has a model
manufactured in both copper and Duplex stainless steel.
specifically designed for use with which renewable heat source.
Where a property is to be fitted with alternative energy,
Solar Power
be it solar thermal, heat pump or a solid fuel heat source then a new hot water cylinder will be required to make the alternative energy heat source work effectively. Don’t believe
We offer a wide variety of cylinders in a choice of materials
anyone who tries to tell you otherwise!
that are specially designed to make the most of solar
2
Renewable Energy Input Gledhill Product Range Solar Power
Air Source Heat Pump
Solid Fuel
Copper SunSpeed
✔
✘
✘
Stainless Lite Unvented
✔
✔
✘
Stainless Lite Buffer
✘
✔
✘
Torrent MultiFuelStore
✔
✔
✔
Combi Boiler Solar Pre-Heat Thermal Store
✔
✘
✘
thermal technology. These range from relatively simple
and thermostat pocket is provided to allow the installer to
vented cylinders for hot water only through to fully integrated
make provision to heat the water above 60 deg C to provide
thermal stores that allow the solar energy to be used for
legionella protection.
both hot water AND heating. For traditional copper vented cylinders please see the Sunspeed range which has a high
The Torrent MultiFuelStore HP is an open vented copper
performance solar coil optimised for use with solar energy
thermal store that will also provide high performance mains pressure hot water. Because it is a thermal store and the
For stainless steel unvented, high performance, mains
domestic hot water is heated via a heat exchanger (no
pressure hot water cylinders, the Stainless Lite Solar or
stored domestic hot water) it has the added advantage of
Stainless Lite Slimline if space is restricted is perfectly suited
not needing any additional heating for legionella protection.
for your requirements.
Solid Fuel
For what we believe is the ultimate alternative energy solution providing solar energy input to both hot water AND
Designed to be the heart of an alternative energy system
heating see the Torrent MultiFuelStore Solar. This is a highly
the Torrent range of thermal stores all come equipped with
flexible thermal store option that provides high performance
tappings for solid fuel / wood burning appliances.
mains pressure hot water and which also comes with additional tappings for use with a wood burning stove.
Heat Pump
Solar Power
4-11
We offer a range of tried and tested cylinders and buffer stores for use with heat pumps. Stainless Lite Heat Pump is a stainless steel unvented
Heat Pump
12-15
Solid Fuel
16-23
cylinder specifically designed to have a larger heat exchanger for use with heat pumps. This will provide high performance mains pressure hot water using the heat pump as the primary heat source. An auxiliary immersion heater
3
Solar Power
Combi Pre-heat
Combi boiler solar preheat thermal store for use with solar energy The Combi Pre-heat thermal store provides the perfect solution when you want to utilise solar energy for your hot water needs, in a property where a combi boiler is already installed. Rather than the cold water being directly fed to the combi boiler, the water passes within the cylinder through a coil. The solar energy heats up the store of water, and as the cold water passes through the coil, heat is transferred from the store, and pre-heats the cold water before feeding to the boiler. This process completely eliminates any risk of legionella, as the water being delivered to the combi boiler is coming directly from the mains, and has not been stored. The process of pre-heating the cold mains water means the boiler does not need to work as hard to reach the desired temperature, therefore energy bills are reduced. The thermal store is available in two capacities in both vertical and horizontal patterns. There are a wealth of benefits that come with thermal store technology including; • Blending valve for anti-scald protection • No requirement for discharge pipework • No risk of legionella • No annual safety check requirement • No approvals needed • Traditional vented safety • Simple to install
Solar Pre-heat Technical Specification Description
T110CP-V
T150CP-V
T110CP-H
T150CP-H
Appliance height
mm
1115
1436
528
528
Appliance width
mm
528
528
1260
1590
Approx weight (empty)
kg
28
32
36
41
Approx weight (full)
kg
148
187
156
196
litres
120
155
120
155
15
15
15
15
Total volume (nominal) Hot water flow rate
Solar Power
SunSpeed
Domestic hot water copper cylinder for use with solar energy SunSpeed is a domestic hot water cylinder designed for
The SunSpeed is an open vented cylinder which makes the
use with solar panels, with cylinder capacities ranging
location of the cylinder more flexible because the cylinder
from 120 to 332 litres. It is a copper cylinder with two heat
does not require a safety discharge pipe and makes it
exchangers, one for solar input and one for a boiler input.
inherently safe.
The dedicated solar volumes range from 34% to 51%
The SunSpeed cylinders are insulated using 35mm HCFC
with the majority exceeding 40% enabling the best use
free EnviroFoam to comply with Part L of the Building
of the solar panels. These dedicated solar volumes allow
Regulations. This insulation incorporates Polyol which is
maximum suitable solar panels surface area from 2.7m2 to
derived from Rapeseed oil - a fully renewable resource, with
6.7m2. The surface area of the solar heat exchanger coil is
an industry leading Global Warming Potential of 0.7. It also
designed to exceed Building Regulations requirements.
provides exceptionally low standing heat loss.
The boiler coil comes into play in the cooler months of the
Please note other sizes other than the ones shown in the
year as the solar input diminishes. A correctly sized cylinder
table below are available, please enquire with the local
will ensure enough hot water is available to the householder
manufacturing depot.
during these months as the dedicated solar volume will not be heated by the boiler. The boiler coil is sized appropriate to the cylinder and gives a recovery time of less than 26 minutes with sizes to meet all regulations.
Specification
Gledhill Code
Nominal overall capacity (litres)
Cylinder size (mm)
Dedicated solar volume (litres)
Surface area of solar coil (m2)
BSUN201
120
1050 x 400
41
0.29
BSUN202
138
1200 x 400
55
0.29
BSUN203
150
1300 x 400
61
0.29
BSUN204
163
1400 x 400
66
0.29
BSUN205
175
1500 x 400
78
0.43
BSUN207
150
1050 x 450
60
0.29
BSUN208
174
1200 x 450
77
0.36
BSUN209
190
1300 x 450
84
0.36
BSUN210
206
1400 x 450
92
0.43
BSUN211
222
1500 x 450
109
0.50
BSUN212
269
1800 x 450
132
0.65
BSUN213
332
1800 x 500
170
0.72
5
Solar Power
StainlessLite Solar Unvented cylinders incorporating a solar coil Gledhill has developed a range of cylinders specifically for
high performance solar coil. They are capable of meeting
solar applications in mind, therefore providing an efficient
the requirements of Building regulations, provided that it is
way of providing domestic hot water. Each model features
matched to the panels and the hot water requirement correctly.
a dedicated high performance solar coil, transferring the
The indirect cylinders are heated by a conventional boiler
maximum amount of heat from the solar circuit to the stored
(either gas or oil) through a second high performance coil.
water. The solar range is based on the standard Stainless Lite The cylinders are compatible with a wide range of solar
cylinders, therefore still providing you with mains pressure
systems available through the United Kingdom and have
hot water, low standing heat losses and lightweight
been designed to maximise the dedicated solar volume.
construction. The range of cylinders is suitable for properties from a bedsit to a 5 bedroom family home.
The direct models are electrically heated cylinders, using the 3kW immersion heater supplied with the unit, with a
Stainless Lite and Stainless Lite Slimline Direct Solar Technical Specification Description
SOL180d
SOL210d
SOL250d
SOL300d
SOL400d
Height
mm
1295
1483
1733
2020
2040
1790
2005
Diameter
mm
550
550
550
550
630
475
475
kg
26
30
34
39
49
32
36
Weight (empty) Weight (full)
SOL180d-SL SOL210d-SL
kg
206
240
284
339
449
212
246
litres
180
210
250
300
400
180
210
bar
3
3
3
3
3
3
3
Expansion vessel size
litres
18
24
24
35
2 x 24
18
24
kW rating of prim. coil
kW
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Recovery time after 70% draw off
min
90
115
139
187
260
90
115
Capacity Pressure regulator
Standing losses
kWhr/24hr
1.40
1.60
1.75
1.93
3.33
2.01
2.23
Surface area of solar coil
m2
0.680
0.680
0.970
0.970
1.270
0.680
0.680
Dedicated solar vol.
litres
60
70
84
100
150
60
70
Model Selection Guide Maximum solar panel area (m2)
Bedrooms
1 shower room
2.4
Bedsit
SOL180d/SOL180d-SL
1 bathroom
2.8
1-3
SOL210d/ SOL210d-SL
1 bathroom & separate shower room
3.36
1-3
SOL250d
Maximum hot water demand
Model
1 bathroom & 2 separate shower rooms
4.0
2-4
SOL300d
2 bathrooms & separate shower room
6.0
4-5
SOL400d
Notes: 1 Recovery time is based on primary coil/immersion heater duty (ie. assumes the boiler output is adequate). 2 All connections are supplied with compression fittings for direct connection to copper pipework. 3 The model sizes shown are based on a typical days hot water use assuming an Economy 7 tariff is provided. A reduction of one model size can normally be made with an Economy 10 tariff. 4 When using the Direct model for high specification developments, an increase of one model size should be considered. 5 When selecting a solar model, it is important to check the dedicated solar volume is suitable for either the total floor area of the dwelling or the total net area of the solar panel to ensure compliance with Building Regulations. 6 Maximum solar panel area is calculated based on 25l/m2 of net solar panel area.
6
Solar Power
StainlessLite Slimline
Unvented cylinders designed for restricted spaces with solar coil The new Stainless Lite Slimline cylinders have been added
upgrade to a Duplex stainless steel cylinder, but also have
to our range of Duplex stainless steel cylinders, to enable
the added benefit of being able to utilise solar power to
you to utilise those smaller storage areas.
contribute to the heating of the store.
The standard size Stainless Lite cylinders are 550mm
Properties that previously could not enjoy mains pressure
in diameter but the new slimline range has a reduced
hot water can now enjoy powerful, mains-pressure
diameter of 475mm.This now enables installers to fit the new
performance, incorporating high flow rate controls, ideal for
cylinders into smaller properties or older homes where there
multi bathroom homes, where baths fill very quickly.
are space limitations, and so provide the benefits of mains pressure hot water.
You will still benefit from the high heat transfer corrugated tube giving 20% faster recovery than plain tubing, controlled
The introduction of the Slimline solar range, available in 180
stratification and minimal heat loss.
litre and 210 litre sizes, enables homeowners to not only
Stainless Lite and Stainless Lite Slimline Indirect Solar Technical Specification Description
SOL180i
SOL210i
SOL250i
SOL300i
SOL400i
Height
mm
1295
1483
1733
2020
2040
1790
2005
Diameter
mm
550
550
550
550
630
475
475
kg
30
35
40
46
59
33
37
Weight (empty) Weight (full)
SOL 180i-SL SOL 210i-SL
kg
210
245
290
346
459
213
247
litres
180
210
250
300
400
180
210
bar
3
3
3
3
3
3
3
Expansion vessel size
litres
18
24
24
35
2 x 24
18
24
kW rating of prim. coil
kW
18.0
18.5
19.0
20.5
22.0
18.0
18.5
Recovery time after 70% draw off
min
16
16
19
20
24
16
16
Capacity Pressure regulator
Standing losses
kWhr/24hr
1.40
1.60
1.75
1.93
3.33
2.01
2.23
Surface area of solar coil
m2
0.680
0.680
0.970
0.970
1.270
0.680
0.680
Dedicated solar vol.
litres
96
101
107
125
165
60
70
Model Selection Guide Maximum solar panel area (m2)
Bedrooms
Model
1 bathroom
2.8
1-3
SOL180i/SOL180i-SL
1 bathroom & separate shower room
3.6
1-3
SOL210i/SOL210i-SL
1 bathroom & 2 separate shower rooms
4.8
2-4
SOL250i
2 bathrooms & separate shower room
5.0
3-4
SOL300i
2 bathrooms & 2 separate shower rooms
6.6
4-5
SOL400i
Maximum hot water demand
Notes: 1 Recovery time is based on primary coil/immersion heater duty (ie. assumes the boiler output is adequate). 2 All connections are supplied with compression fittings for direct connection to copper pipework. 3 When selecting a solar model, it is important to check the dedicated solar volume is suitable for either the total floor area of the dwelling or the total net area of the solar panel to ensure compliance with Building Regulations. 4 Maximum solar panel area is calculated based on 25l/m2 of net solar panel area.
7
Solar Power
Torrent MultiFuelStore SOL
Solar compatible open vented thermal store providing mains pressure hot water with a sealed heating system The Torrent MultiFuelStore SOL utilises either a sealed
Alternatively, an open vented boiler can be used to directly
system boiler and / or an open vented boiler as its primary
heat the store so that the energy will be available for both
energy source. It also has a high-efficiency solar coil to
hot water and auxiliary central heating circuit.
allow the homeowner to benefit from a wide variety of alternative energy inputs. The cylinder comes fitted with
The cylinder comes with two return connections for solid
tappings for a woodburning or solid fuel boiler as standard,
fuel and woodburning stoves to enable the homeowner to
which can be blanked off if not required at the time of
have an aga running 24 hours a day but still retaining the
installation.
dedicated solar volume.
Hot water and heating
Electric back-up
The Torrent MultiFuelStore SOL provides high-performance
An immersion element is provided and it is normally
mains pressure hot water.
envisaged that this will be used as an emergency electric back-up for hot water and to provide emergency energy
The central heating circuit can be supplied directly from a
to the auxiliary heating circuit. However, if a low carbon or
sealed system boiler although an auxiliary heating circuit
renewable electricity source is available then this could be
can be connected from the store in which case both the
connected to the immersion element to provide heat input to
solar and solid fuel energy will also provide an input to the
the thermal store, decreasing the use of the fossil fuel boiler
auxiliary heating circuit.
and hence reducing running costs.
Store overheats
Domestic hot water
Solid fuel flow Open vented boiler flow
Solar thermostat
Central heating flow Immersion heater
Sealed primary boiler flow
Control stat Solid fuel return 2
Sealed primary boiler return
Boiler return Central heating return Cold mains
Solar flow Solar thermostat
Solid fuel return
Solar return Drain
8
Solar Power Torrent MultiFuelStore Solar showing how the cylinder can utilise numerous heat sources at the same time
Sensor circuit Solar controller
Solar pumping station
Expansion vessel
Pressure relief
If using an SP boiler, the auxiliary central heating supplied from the store is limited to the heat input provided by the auxiliary heat source
Mains pressure hot water
Open vented boiler
Multi-fuel stove
Either an open vented, sealed primary or a combination of the two boilers can be used
Underfloor heating supplied from store
Cold mains water
Central heating supplied by boiler
Sealed boiler
Sealed system kit
Torrent MultiFuelStore Solar Technical Specification Description
T210-SOL
T250-SOL
T350-SOL
T450-SOL
Unit height
mm
1930
2090
1665
2065
Unit diameter
mm
520
570
720
720
Total volume (nominal)
litres
201
277
409
525
Dedicated solar volume
litres
76
95
125
153
Max. solar collector area 1
m2
3.04
3.80
5.00
6.12
Max. hot water flow rate
litres/ minute
18
25
25
35
Bath
1
1
2
3
Shower room
1
2
2
2
Bed
2-4
2-4
3-5
4-6
Maximum dwelling type
Notes: 1 To comply with the Building Regulations ADL1 Domestic Heating Compliance Guide. • Additional height for F&E tank will need to be allowed if it is to be sited in the same cupboard. • Vent pipes shown through the side of the feed and expansion tank may not be suitable for all systems. Installers must check suitability. • The standard open vented store relies on an F&E (feed & expansion) tank suitably sited above the highest radiator point to provide sufficient head for the system. As the domestic hot water is at mains pressure, the Torrent MultiFuelStore Solar itself can be sited anywhere in the property. • Provision is also made within the design for a sealed heating/boiler circuit with the heat exchanger provided which would then operate as a conventional cylinder. Although this would reduce the potential for utilising the solar energy in the HEATING CIRCUIT, it would mean that both the Torrent and the F&E tank can then be sited anywhere in the property, as the F&E is only being used to fill the store with water. • The feed and expansion tank must be sized to take the water expansion of the whole system (ie. solid fuel boiler, cylinder, open flue boiler and auxiliary heating).
9
Solar Power
Torrent MultiFuelStore HP SOL Thermal store for utilising both heat pump and solar technology to provide heating and mains pressure hot water Combining all the benefits of the Torrent MultiFuelStore HP, Low temperature renewable heat energy recovered by the heat pump
the Torrent MultiFuelStore HP SOL allows the combination of heat pump, solar energy and wood burning stove in the same system, making what must be the ultimate alternative energy cylinder.
Electrical power in
Torrent HP Solar
Hot water and heat output
Alternative energy source such as wood burning stove or solar panels
Torrent MultiFuelStore HP SOL system configuration with optional wood burning stove and central heating supplied from the thermal store
Sensor circuit Solar controller
Mains pressure hot water
Solar pumping station
Expansion vessel
Cold mains water
Multi-fuel stove Central heating
Heat pump
10
Pressure relief
Solar Power Torrent MultiFuelStore HP SOL system configuration with optional wood burning stove and central heating supplied directly from the heat pump
Sensor circuit Solar controller
Solar pumping station
Expansion vessel
Mains pressure hot water
Pressure relief
Cold mains water
Multi-fuel stove Central heating
Heat pump
Torrent MultiFuelStore HP SOL Technical Specification Description
THP180 SOL
THP210 SOL
THP250 SOL
THP300 SOL
Nominal volume (litres)
171
223
250
300
450
Dedicated solar volume
62
72
80
95
140
Overall height
1650
1670
1630
1880
1980
Overall diameter
550
550
630
630
720
Approx weight (empty - kg)
62
63
66
71
81
Approx weight (full - kg)
233
286
316
371
531
Heat loss (kWhr/24 hours)
1.82
2.08
2.25
2.41
2.85
15
15
15
15
23
55˚C
70
90
100
118
136
60˚C
100
130
140
165
195
65˚C
125
155
180
210
240
Flow rate (litres/min) Hot water draw off volume (store temp)
Size of heat pump heat exchanger Total surface area of solar heat exchanger Max. dwelling floor area (m )
There is no heat exchanger in a thermal store so there are no restrictions on output 1.31
1.74
1.74
2.18
60
90
105
200
2.9
3.2
3.8
5.6
2-3
2-3
3-4
3-4
1
1
1
2
2
0
1
2
1
2
1
49
Max. solar collector area (m2) 1
2.4
Dwelling (Bedrooms)
1-2
Bathrooms En-Suite shower
2
THP450 SOL
1.31
Notes: 1 To comply with the Building Regulations ADL1 Domestic Heating Compliance Guide • The suggested model sizes in the selection chart are based on a store temperature of 65°C. If the intention is that the heat pump will be used to provide the majority of the hot water with minimum boost from another heat source then consideration should be given to choosing a larger model of Torrent MultiFuelStore HP SOL appliance. See table 1b in the Design Installation and Servicing Instructions for equivalent volumes at different charge temperatures. • If the immersion heater is to be used as the hot water boost a suitable control system should be installed to ensure that the heat pump has fully charged the appliance before the boost immersion heater is allowed to operate. This will ensure the most efficient and cost effective use of the system. • Additional height for F&E tank will need to be allowed if it is to be sited in the same cupboard. • The feed and expansion tank must be sized to take the water expansion of the whole system (ie. solid fuel boiler, cylinder, open flue boiler and auxiliary heating).
11
Heat Pump
StainlessLite HP
Unvented cylinders specifically designed to work with a heat pump Gledhill have produced an unvented stainless steel unit specifically for heat pump applications providing mains pressure domestic hot water. Utilising the well established Gledhill Stainless Lite unvented hot water cylinder, this product has been developed to maximise the lower temperatures available from the heat pump. The heat exchanger is a totally new design. It consists of a multi-pass corrugated stainless steel tube in parallel to reduce the pressure loss whilst maximising the heat exchange. Many medium to large heat pumps need heat exchangers in the store that will cope with the higher flow rates associated with primary temperatures that are typically 50˚C or 60˚C. All the usual features of the Gledhill Stainless Lite are maintained together with all the necessary controls and expansion devices included. Due to the fact that many heat pumps will not raise the
against the problem of installing a standard diameter unit
stored water temperature to 60˚C, which is necessary
into a small cupboard space, common in older properties.
to prevent the growth of legionella, the Stainless Lite HP model is supplied with an immersion heater tapping and a
As a result, in addition to our existing Stainless Lite standard
thermostat pocket.
heat pump range, we have developed the new Stainless Lite Slimline HP which has a reduced diameter of 475mm.This
It is recommended that a thermostat is fitted which brings the
now enables installers to fit the new cylinders into smaller
immersion heater ‘on’ at a temperature just below the heat
properties or older homes where there are space limitations,
pump maximum and switches off at 60˚C or 65˚C. In this
and so provide the benefits of mains pressure hot water.
way the use of ‘direct’ electricity is minimised and most of the Although the cylinder has a reduced diameter, it still has
water heating is achieved through the heat pump.
a 3m2 high performance corrugated coil which has been In situations where you want to upgrade a standard cylinder
specifically designed for maximum heat transfer. The heat
with a heat pump installation, you will constantly come up
exchanger is a totally new design. It consists of a multipass corrugated stainless steel tube in parallel to reduce the pressure loss whilst maximising the heat exchange and ensuring high flow rates essential to work with heat pumps. The key features of the Stainless Lite HP are: • The latest and highest quality Duplex Stainless Steel. • A 25 year guarantee. • Fast reheat rate from its purpose designed low resistance coil. • One of the highest insulation ratings on offer today. • The Stainless Lite HP is supplied with all the necessary connections including two dry thermostat pockets.
12
Heat Pump Stainless Lite HP system (with optional solar panels) for use on a sealed heating system. (See our Technical Manual for other Stainless Lite HP system (with optional solar installation options)
panels)
PRV
for use on a sealed heating system.
Expansion vessel
Central heating zone valve
Solar pumping station
Hot water zone valve
System pump
Primary circuit sealed system kit
Heat pump
Solar circuit zone valve
PRV
Central heating flow and return
Stainless Lite HP Technical Specification Description Height Diameter Weight (empty) Weight (full) Capacity Pressure regulator Expansion vessel size kW rating of heat pump coil Heat pump coil pressure loss Surface area of heat pump coil Standing losses Surface area of solar coil Dedicated solar volume
mm mm kg kg litres bar litres kW bar m2 kWhr/24hr m2 litres
HP180IND
HP210IND
HP250IND
HP300IND
HP400IND
HP180SL
HP210SL
1295 550 33 213 180 3 18 24.3 0.048 1.36 1.40 0.680 65
1483 550 38 248 210 3 24 26.2 0.054 1.56 1.60 0.680 75
1733 550 43 293 250 3 24 27.5 0.060 1.94 1.75 0.970 90
2020 550 49 349 300 3 35 34.2 0.019 2.04 1.93 0.970 105
2040 630 61 461 400 3 2 X 24 47.2 0.027 2.91 3.33 1.270 130
1790 475 33 213 180 3 18 32.8 0.018 3.01 2.01 -
2005 475 37 247 210 3 24 31.2 0.018 3.01 2.23 -
Model Selection Guide Maximum hot water demand 1 bathroom 1 bathroom & separate shower room 1 bathroom & 2 separate shower rooms 2 bathrooms & separate shower room 2 bathrooms & 2 separate shower rooms 2 bathrooms & 2 separate shower rooms 2 bathrooms & 3 separate shower rooms
Maximum solar panel area (m2)
Bedrooms
Model (without solar heating input)
Model (with solar heating input)
2.6 3.0 3.6 4.2 5.2 -
1-3 2-3 2-3 2-4 2-4 3-5 4-5
HP180IND / HP180SL HP180IND / HP180SL HP180IND / HP180SL HP210IND / HP210SL HP250IND HP300IND HP400IND
HP180IND HP210IND HP250IND HP300IND HP400IND -
Notes: 1 2 3 4 5 6
All connections are supplied with compression fittings for direct connection to copper pipework. The suggested model sizes shown are based on a typical days hot water use assuming that the heat pump will heat the domestic hot water to approximately 50ËšC. When connecting to solar heating input, it is important to check the dedicated solar volume is suitable for the total floor area to comply with Building Regulations. The Stainless Lite HP units are the same whether you are running solar thermal systems in conjunction with heat pump or just using a heat pump input only. The solar dedicated volume is only applicable when used in conjunction with solar thermal systems. When selecting a solar model, it is important to check the dedicated solar volume is suitable for either the total floor area of the dwelling or the total net area of the solar panel to ensure compliance with Building Regulations. 7 Maximum solar panel area is calculated based on 25 l/m2 of net solar panel area. 8 Heat pump kW rating performed at 80ËšC and 0.25 l/s. 9 The Stainless Lite Slimline HP cylinders do not have connections for a solar input.
13
Heat Pump
Buffer Store
Vented store for use with a heat pump Buffer vessels are simply a duplex stainless steel tank that contains a volume of water, increasing the overall volume of the heating distribution system. This extra volume of water is designed to absorb any extra heat generated by the heat pump in low load conditions. If the building cannot absorb the extra heat generated the return temperature to the heat pump will increase and will potentially cause the heat pump to turn off. If the temperature drops in the water returning to the heating appliance, then it will turn itself back on. If this cycling occurs at a greater frequency than the minimum run time for the appliance, this is classed as short cycling. The aim of a buffer vessel is to remove the possibility of any short cycling of the heating appliance. These buffer vessels are designed to work at up to 3.5 bar pressure for primary water only. They should not be used for potable domestic hot water and are not approved for this purpose.
Stainless Lite Direct Buffer Store Technical Specification Description
90D
120D
210D
300D
400D
Height
mm
732
920
1483
2020
2030
Diameter
mm
550
550
550
550
630
Weight (empty)
kg
13
18
28
37
51
Weight (full)
kg
103
138
238
337
451
litres
90
120
210
300
400
kWhr/24hr
0.80
1.00
1.60
1.93
3.33
Capacity Standing losses
Stainless Lite Indirect Buffer Store Technical Specification Description
120IND
210IND
300IND
400IND
Height
mm
920
1483
2020
2030
Diameter
mm
550
550
550
630
kg
22
33
44
55 455
Weight (empty) Weight (full) Capacity Standing losses
kg
142
243
344
litres
120
210
300
400
kWhr/24hr
1.00
1.60
1.93
3.33
14
Heat Pump
Flexible Buffer Store Vented store for use with multiple heat sources Where there is a requirement to connect multiple heat
22mm Compression
pumps or other heat sources into a buffer store, the Flexible option is the perfect choice. The Flexible buffer store works in the same way as the
Upper Plain Pipe Connections
standard one, with the additional benefit of being able to accept up to four seperate inputs directly into the store. High Level Stat
For further technical details, please consult the StainlessLite Buffer Store Installation Manual.
Inspection hatch Lower Plain Pipe Connections ½ " BSP Fitting
for Drain Valve Low Level Stat
Stainless Lite Flexible Buffer Store Technical Specification Description
90FLX
120FLX
210FLX
250FLX
300FLX
400FLX
Capacity
litres
90
120
210
250
300
400
Height
mm
740
930
1488
1740
2025
2030
Diameter
mm
550
550
550
550
550
630
Weight (empty)
kg
13
18
28
32
37
51
Weight (full)
kg
103
138
238
282
337
451
kWhr/24hr
0.80
1.00
1.60
1.75
1.93
3.33
Maximum working pressure - cylinder
bar
3.5
3.5
3.5
3.5
3.5
3.5
Maximum working pressure - space heating
bar
3.5
3.5
3.5
3.5
3.5
3.5
Tappings
mm
28
28
28
35
35
35
Thermostatic pocket size
mm
22
22
22
22
22
22
Standing losses
15
Heat Pump
Torrent MultiFuelStore HP Thermal store for use with a heat pump to provide heating and mains pressure hot water Rather than operating with a conventional carbon fuel
delivered. With a Torrent MultiFuelStore there are no health
boiler as the main energy source this appliance has
issues because the hot water is heated indirectly and the
been designed to operate with an air or ground source
lack of a heat exchanger/coil for the heat pump means that
heat pump. However it still provides mains pressure hot
the full output is delivered directly to the thermal store. Both
water from an open vented thermal store and enjoys all
of which ensure that less boost is required to achieve an
the other benefits outlined previously for the other Torrent
acceptable hot water temperature at the tap.
MultiFuelStore appliances. In fact, the ease with which renewable energy systems, such The main difference when using a heat pump compared to
as wood burning stoves, can be connected to a Torrent
a conventional boiler is the lower temperatures generated
thermal store means that these are often chosen to provide
by the heat pump. This causes problems in conventional
the boost rather than electricity. Connections for this are
storage/unvented cylinders with low storage temperatures.
provided as standard and can be blanked off if not required
This can lead to health problems such as Legionella and
at the time of installation.
unacceptable hot water delivery temperatures, which are not helped by the further heat losses that occur due to the need
The low temperatures delivered by the heat pump also
for a primary heat exchanger/coil.
mean that the radiators need to be sized to take account of this or an underfloor heating system that operates at
For these reasons it is necessary to constantly boost the hot
the temperatures that can be achieved by the Heat Pump
water temperature using electricity to meet the Regulations
should be used.
regarding the quality and suitability of the hot water being
Torrent MultiFuelStore HP system configuration with optional wood burning stove and central heating supplied from the thermal store
Mains pressure hot water
Cold mains water
Multi-fuel stove
Central heating
Heat pump
16
Heat Pump Torrent MultiFuelStore HP system configuration with optional wood burning stove and central heating supplied directly from the heat pump
Mains pressure hot water
Cold mains water
Multi-fuel stove
Central heating
Heat pump
Torrent HP Technical Specification Description
THP180
THP210
THP250
THP300
THP450
Nominal volume (litres)
191
224
250
300
450
Overall height
1450
1670
1630
1880
1980
Overall diameter
550
550
630
630
720
Approx weight (empty - kg)
54
58
63
67
77
Approx weight (full - kg)
245
282
313
367
527
Heat loss (kWhr/24 hours)
1.82
2.08
2.25
2.41
2.85
15
15
23
23
30
55˚C
90
100
118
136
193
60˚C
130
140
165
195
275
65˚C
155
180
210
240
350
Flow rate (litres/min) Hot water draw off volume (store temp)
Size of heat pump heat exchanger Dwelling (Bedrooms)
There is no heat exchanger in a thermal store so there are no restrictions on output 2-3
2-3
3-4
3-4
4-5
Bathrooms
1
1
2
2
3
En-Suite shower
1
2
1
2
2
Notes: • The suggested model sizes in the selection chart are based on a store temperature of 65°C. If the intention is that the heat pump will be used to provide the majority of the hot water with minimum boost from another heat source then consideration should be given to choosing a larger model of Torrent MultiFuelStore HP appliance. See table 1b in the Design Installation and Servicing Instructions for equivalent volumes at different charge temperatures. • If the immersion heater is to be used as the hot water boost a suitable control system should be installed to ensure that the heat pump has fully charged the appliance before the boost immersion heater is allowed to operate. This will ensure the most efficient and cost effective use of the system. • Additional height for F&E tank will need to be allowed if it is to be sited in the same cupboard. • The feed and expansion tank must be sized to take the water expansion of the whole system (ie. solid fuel boiler, cylinder, open flue boiler and auxiliary heating).
17
Solid Fuel
Torrent MultiFuelStore OV Open vented thermal store providing open vented heating and mains pressure hot water The Torrent MultiFuelStore OV utilises an open vented boiler
the store to the central heating circuit, allowing rapid heat-up of
and / or direct electric immersion heaters as its primary energy
a radiator system.
source. It comes fitted with tappings for a woodburning or solid Electric-only option
fuel boiler as standard, which can be blanked off if not required at the time of installation.
In situations where no gas or solid fuel source is available the One of the benefits of the open vented boiler configuration is
Torrent MultiFuelStore OV can be used exclusively from the two
that the whole output of the boiler is available to the thermal
3kW electric immersion elements which will provide both hot
store, unlike the indirect Sealed Primary (SP) version where the
water and heating for the property. The obvious application is
output from the boiler is limited by the heat exchanger. This
apartments where no gas main is available but this could also
will provide an improvement in the operational efficiency of the
be appropriate where electricity is available from a renewable
boiler, reducing the primary energy usage and running costs.
or low carbon source.
Hot water and heating
If connected to the standard grid then the thermal store is the perfect solution to maximise useage of an off peak tariff where
The Torrent MultiFuelStore OV provides high-performance
arrangements should be made to power the lower immersion
mains pressure hot water. The heat energy provided from the
element in order to minimise the running costs.
primary heat source and / or solid fuel input is circulated from
Domestic hot water
Store overheats
Solid fuel flow
Immersion heater
Boiler flow Central heating flow
Control stat Cold mains
Solid fuel return
Immersion heater
Boiler return
Drain
Central heating return
18
Solid Fuel Torrent MultiFuelStore OV showing how the cylinder can utilise numerous heat sources at the same time
Mains pressure hot water
Central heating supplied from store
Cold mains water
Underfloor heating supplied from store
Multi-fuel stove
Open vented boiler
Torrent MultiFuelStore OV Technical Specification Description
T144-OV
T170-OV
T210-OV
T250-OV
T350-OV
Unit height
mm
1600
1680
1805
1915
1665
Unit diameter
mm
520
520
570
570
720
Total volume (nominal)
litres
166
176
240
266
413
Max. hot water flow rate
litres
15
18
18
25
25
Bath
1
1
2
2
3
Shower room
-
1
1
2
2
Bed
1-2
2-4
3-4
3-5
3-5
Maximum dwelling type
Notes: • • • •
Additional height for F&E tank will need to be allowed if it is to be sited in the same cupboard Vent pipes shown through the side of the feed and expansion tank may not be suitable for all systems. Installers must check suitability. The standard open vented store relies on an F&E (feed & expansion) tank suitably sited above the highest radiator point to provide sufficient head for the system. The feed and expansion tank must be sized to take the water expansion of the whole system (ie. solid fuel boiler, cylinder, open flue boiler and auxiliary heating).
19
Solid Fuel
Torrent MultiFuelStore SP
Open vented thermal store providing mains pressure hot water with a sealed heating system The Torrent MultiFuelStore SP utilises a sealed system boiler
This sealed primary (SP) model permits the use of a smaller
as its primary energy source. It comes fitted with tappings for
feed and expansion tank because the main central heating
a woodburning or solid fuel boiler as standard, which can be
circuit does not need to be catered for. This can make
blanked off if not required at the time of installation.
positioning the F&E tank more straightforward.
Hot water and heating
Electric back-up
The Torrent MultiFuelStore SP provides high-performance
An immersion element is provided and it is normally envisaged
mains pressure hot water.
that this will be used as an emergency electric back-up for hot water and to provide emergency energy to the auxiliary heating
The central heating circuit is normally supplied directly from the
circuit. However, if a low carbon or renewable electricity source
boiler although an auxiliary heating circuit can be connected
is available then this could be connected to the immersion
from the store in which case the solid fuel source will provide
element to provide heat input to the thermal store, decreasing
energy to the auxiliary heating circuit. Obviously, the energy
the use of the fossil fuel boiler and hence reducing running
output that can be provided by the auxiliary heating circuit will
costs.
be limited to the energy input from the solid fuel appliance.
Domestic hot water
Store overheats
Solid fuel flow
Immersion heater
Central heating flow
Control stat Cold mains Boiler flow
Solid fuel return
Boiler return
Central heating return
Drain
20
Solid Fuel Torrent MultiFuelStore SP showing how the cylinder can utilise numerous heat sources at the same time
Auxiliary central heating supplied from store limited to heat input provided by auxiliary heat source
Heat sink radiator
Mains pressure hot water
Cold mains water
Underfloor heating supplied from store
Multi-fuel stove Central heating supplied by boiler
Sealed boiler
Sealed system kit
Torrent MultiFuelStore SP Technical Specification Description
T144-SP
T170-SP
T210-SP
T250-SP
T350-SP
Unit height
mm
1600
1680
1805
1915
1665
Unit diameter
mm
520
520
570
570
720
Total volume (nominal)
litres
165
175
237
252
408
Max. hot water flow rate
litres
15
18
18
25
25
Bath
1
1
2
2
3
Shower room
-
1
1
2
2
Bed
1-2
2-4
3-4
3-5
3-5
Maximum dwelling type
Notes: • Additional height for F&E tank will need to be allowed if it is to be sited in the same cupboard • Vent pipes shown through the side of the feed and expansion tank may not be suitable for all systems. Installers must check suitability. • The feed and expansion tank must be sized to take the water expansion of the whole system (ie. solid fuel boiler, cylinder, open flue boiler and auxiliary heating).
21
Solid Fuel
StainlessLite Vented
Open vented cylinder for use with uncontrolled heat sources The Stainless Lite Vented provides a high quality open vented stainless steel cylinder for use in a traditional vented cylinder installation. As an open vented cylinder, it also permits the connection of an uncontrolled heat source such as a solid fuel or wood burning appliance, which is not permitted with an unvented cylinder. The technical and dimensional data for the Stainless Lite Vented is the same as the Stainless Lite direct and Stainless Lite Solar, both of which are available in direct and indirect configurations. Full technical details can be found on pages 5-8 in this brochure. The only difference between the vented and unvented range of stainless steel cylinders is that instead of being supplied with the unvented kit, the vented option is supplied with a control thermostat and a drain valve.
The traditional vented storage water heater has a proven track record of reliability and safety. The operating pressure is dictated by the vertical distance between the cistern tank and the bottom of the heater. The open vented system is renowned for its safety because the open vent that discharges in to the cistern tank automatically equalises any excess pressure or vacuum. The Stainless Lite Vented cylinder is fully compliant with 2010 Part L regulations, therefore it now enables you to fit a vented cylinder into a new build property.
22
Solid Fuel
StainlessLite Triple Coil
Open vented cylinders for use with multiple heat sources To satisfy the growing demand for a stainless steel cylinder being capable of accepting multiple heat sources, Gledhill has developed a triple coil version of the Stainless Lite cylinder, which can accept solar and uncontrolled heat sources such as solid fuel or wood burning appliances. The cylinder has a dedicated solar coil at the bottom of the cylinder. It then has a double coil for the solid fuel heat supply and a single coil for the gas/oil boiler. It also has a back up heat source in the form of an immersion heater. The three separate coils will work independently providing the maximum heat to the store, and subsequently reduce the households fuel bills. The boiler coil and solar coil are both 22mm and the solid fuel gravity circulation are 28mm.
Stainless Lite Triple Coil Technical Specification Description
IND300-STC
IND400-STC
Height
mm
2020
2040
Diameter
630
mm
550
Weight (empty)
kg
46
60
Weight (full)
kg
346
460
Capacity kW rating of primary coil Recovery time after 70% draw off
litres
300
400
kW
20.5
20.5
min
41
45
kWhr/24hr
1.93
3.33
Surface area of solar coil
m2
0.97
1.27
Dedicated solar volume
litres
100
150
m2
4.0
6.0
Standing losses
Maximum solar panel area
Notes: 1 Recovery time is based on primary coil/immersion heater duty (ie. assumes the boiler output is adequate). 2 All connections are supplied with compression fittings for direct connection to copper pipework. 3 When selecting a solar model, it is important to check the dedicated solar volume is suitable for either the total floor area of the dwelling or the total net area of the solar panel to ensure compliance with Building Regulations. 4 Maximum solar panel area is calculated based on 25l/m2 of net solar panel area.
23
8. 6XSHU 'HSRW ,QIUDVWUXFWXUH %ODFNSRRO +HDG 2IILFH DQG 6WDLQOHVV 6WHHO 0DQXIDFWXULQJ 6LWH
/LYHUSRRO 7HOHSKRQH )D[
%ODFNEXUQ 7HOHSKRQH )D[
0DLGVWRQH 7HOHSKRQH )D[
%ULVWRO 7HOHSKRQH )D[
1RWWLQJKDP 7HOHSKRQH )D[
'XGOH\ 7HOHSKRQH )D[
3DLJQWRQ 7HOHSKRQH )D[
+HPHO +HPSVWHDG 7HOHSKRQH )D[
5HDGLQJ 7HOHSKRQH )D[
+XQWLQJGRQ 7HOHSKRQH )D[
6RXWKDPSWRQ 7HOHSKRQH )D[
,QYHUNHLWKLQJ 7HOHSKRQH )D[
)RU WHFKQLFDO DGYLFH FDOO
6833/,(56 72 7+( 0(5&+$17 75$'( )25 29(5 <($56
Gledhill Building Products Limited Sycamore Estate, Squires Gate, Blackpool FY4 3RL Tel: 01253 474550 Fax: 01253 474551 sales@gledhill.net 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
For further information of Gledhill products can be found on the internet at www.gledhill.net
â&#x20AC;&#x153;Only the best is acceptableâ&#x20AC;?
FM 2057 Gledhill cylinders are produced under an ISO 9001:2008 Quality System accepted by BSI
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.