gledhill StainlessLite Plus IND150, StainlessLite Plus IND120, StainlessLite Plus IND180, StainlessLite Plus IND300 Instruction Manual
WWW.GLEDHILL.NET
ONE NAME. EVERY SOLUTION.
STAINLESSLITE PLUS
UNVENTED MAINS PRESSURE
HOT WATER STORAGE
INSTRUCTION MANUAL
DESIGN, INSTALLATION & SERVICING
Page 2 Page 3
Section Page
DESIGN
Description 3
Technical Information 6
System Design 10
INSTALLATION
Installation 12
Commissioning 22
USER INSTRUCTIONS 23
SERVICING AND MAINTENANCE
Servicing and Maintenance 24
Fault Finding 25
Short Parts List 28
APPENDIX
Appendix A 29
Appendix B 30
Notes 31
Terms & Conditions 32
Benchmark Checklist 34
Benchmark Service Record 35
ISSUE 03: DECEMBER 2017
Maintenance
Modifications should not be made to this
product. Replacement parts, including
immersion heaters, should be purchased from
Gledhill Building Products Limited, or agents
approved by them. Unvented hot water storage
vessels need regular routine checks, and
these are detailed below. It is for this reason
that this manual must always be left with the
StainlessLite Plus.
It is essential that these checks be carried out
at the time of boiler maintenance by a qualied
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 o 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-ll 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 necessar y, descale the heat
exchanger in hard water areas ie. above
200ppm (mg/l).
Note:
The cylinder is factory fitted with a lift up
temperature & pressure relief valve that must
not be used for any other purpose or removed.
The cylinder is factory tted with immersion
heaters with thermal cut outs. Immersions
without thermal cut outs must not be tted.
These instructions should be read in conjunction with the installation/servicing
instructions issued by the manufacturer of the heat source being used.
Any installation must be in accordance with the relevant requirements of the Gas
Safety Regulations, Building Regulations, I.E.E. Wiring Regulations and the Water Fitting
Regulations (England and Wales) or Water Byelaws (Scotland). It should be read in
accordance with the relevant recommendations of the following:
BS 6798; BS EN 12828, BS EN 12831, BS EN 14336; BS 5546;
BS 5440:1; BS 5440:2; CP 331:3
BS EN 806-1 to 5, BS EN 8558:2011: BS EN 1458-1:2011 and BS 7593:2006
StainlessLite Plus is covered by Section G3 of the Building Regulations (England and
Wales) Technical Standard P3 (Scotland) and Building Regulation P5 (Northern Ireland).
Compliance can be achieved via a Competent Person Self Certication Scheme or
noticaton of installation to the Local Authority Building Control Department.
It must be installed by a competent person as dened 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 specication 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 specication, for the eectiveness of an installation or system
containing one of our products unless specically 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 specication. In the interest of continuously improving the StainlessLite Plus
range, Gledhill Building Products Limited reserve the right to modify the product
without notice, and in these circumstances this booklet, which is accurate at the time
of printing, should be disregarded. An updated set of Instructions will be produced
and supplied with new appliances and will be made available for other appliances
on request.
StainlessLite Plus is produced under an ISO 9001:2008 Quality Management
System approved by BSI.
Benchmark places responsibilities on both manufacturers and installers. The purpose is to
ensure that customers are provided with the correct equipment for their needs, that it is
installed, commissioned and serviced in accordance with the manufacturers instructions
by competent persons and that it meets the requirements of the appropriate Building
Regulations. The Benchmark Checklist can be used to demonstrate compliance with
Building Regulations and should be provided to the customer for future reference.
Installers are required to carry out installation, commissioning and servicing work
in accordance with the Benchmark Code of Practice which is available from the
Heating and Hot Water Industr y Council who manage and promote the Scheme.
Visit www.centralheating.co.uk for more information.
For further information on the HWA Charter Statement, please refer to the HWA website
hotwater.org.uk.
Manufacturer: Gledhill Building Products Ltd
Maximum inlet pressure to
Pressure reducing valve 12 bar
Operating pressure (PRV setting) 3 bar
Expansion vessel charge pressure 3 bar
Expansion relief valve setting 4.5 bar
Opening pressure of P & T Relief Valve 6 bar
Opening temperature of P & T Relief Valve 89-96°C
Energy cut-out thermostat setting 85°C
Max. working pressure - Primary heat exchanger (Indirect models) 6 bar
Max. working pressure - Solar heat exchanger (Solar models) 10 bar
Immersion heater rating 3kW, 240V AC
All cylinders are manufactured in accordance with the requirements of BS EN 12897
The tundish must be positioned so that it is visible to the occupant and is away from
electrical devices.
Components supplied with StainlessLite Plus:
• Cold water inlet PRV combination valve/expansion relief
• Lift up pressure and temperature relief valve
• Control thermostat
• Energy cut-out thermostat
• Energy cut-out motorised valve (indirects only)
• Tundish
• 3kW Immersion heater including control and cut out thermostats
• Expansion vessel/mounting bracket/exible hose
• Technical/user product literature
(Note: Please refer to tables 1 and 2 on pages 6-9 to conrm 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 tted to accommodate the extra expansion
volume.
Handling Before Installation
StainlessLite Plus must be handled with care and stored the correct way up in a
dry place. Any manual handling/lifting operations will need to comply with the
requirements of the Manual Handling Operations Regulations issued by the H.S.E.
The appliance can be moved using a sack truck on the rear face although care should
be take n and the rout e should be ev en. 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 specic manual handling assessment is shown in Appendix B at the rear of this
manual.
The Environment
This product has been manufactured using many recyclable materials, including the
approved HCFC/CFC free polyurethane foam insulation. At the end of its useful life, it
should be disposed of at a Local Authority Recycling Centre, to maximise the products
full environmental benets.
DESIGN
DESCRIPTION
Page 4 Page 5
StainlessLite Plus 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 2. It is tted with all necessary safety
devices and supplied with all the necessary
control devices to make installation on site as
easy as possible.
StainlessLite Plus is available in four basic
variants:
1. StainlessLite Plus Direct - For providing hot
water heated by electricity (Figure 1).
2. StainlessLite Plus Indirect - For use with
gas or oil boilers (Figure 2). Unvented
cylinders must not be used with solid fuel
boilers or steam as the energy source.
3. StainlessLite Plus Direct Solar - For
providing hot water by solar gains and
electricity. (Figure 3).
4. StainlessLite Plus Indirect Solar - For
providing hot water by solar gains and gas
or oil boilers (Figure 4). Unvented cylinders
must not be used with solid fuel boilers or
steam as the energy source.
StainlessLite Plus Direct
StainlessLite Plus Direct is an electrically heated,
unvented hot water storage cylinder designed
primarily for use with off peak electrical
supplies.
It is supplied tted with two 3kW immersion
heaters which are BEAB approved for safety as
recommended by the Electricity Council.
StainlessLite Plus Direct models are listed in
Table 1 on Page 6 & 7.
StainlessLite Plus Indirect
StainlessLite Plus Indirect is an unvented hot
water storage cylinder and is provided with a
high eciency 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.
StainlessLite Plus Indirect models are listed in
Table 2 on Page 8 & 9.
StainlessLite Plus
DIRECT
StainlessLite Plus
INDIRECT
StainlessLite Plus
DIRECT SOLAR
StainlessLite Plus
INDIRECT SOLAR
Figure 1 Figure 2 Figure 3 Figure 4
StainlessLite Plus Direct Solar
StainlessLite Plus Direct Solar is an electrically
heated, unvented hot water storage cylinder
designed for use with off peak electrical
supplies.
It is supplied tted with two 3kW immersion
heaters which are BEAB approved for safety as
recommended by the Electricity Council.
A high eciency coil is positioned in the lower
part of the StainlessLite Plus vessel to ensure
maximum benet of solar gain energy.
StainlessLite Plus Direct Solar models are listed
in Table 1 on Page 6 & 7.
StainlessLite Plus Indirect Solar
StainlessLite Plus Indirect Solar is an unvented
hot water storage cylinder and is provided with
a high eciency 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 eciency solar coil is positioned below
the primary coil to ensure maximum benet of
solar gain energy.
StainlessLite Plus Indirect Solar models are
listed in Table 2 on Page 8 & 9.
Note:
The cold supply elbow c/w drain tapping
must be tted as shown in gs 1, 2, 3 and
4. A exible hose can then be connected to
the drain tapping and, providing the hose
runs below the lowest level of the cylinder,
then all the water contents can be drained
out by syphonic action. (The cold feed pipe
dips internally to the base of the cylinder.)
DESIGN DESIGN
DESCRIPTION DESCRIPTION
Page 6 Page 7
Table 1 - Direct Models
Model
Stock Code
Load Prole
Energy Eciency Class
Heat Loss
Energy Eciency %
Annual Consumption
Thermostat
Temperature Setting
Sound Power Level
Capacity (Total Volume)
Weight - Empty
Weight - Full
Pressure Regulator 3 bar inlet group c/w balance
cold supply, expansion vessel connection and
expansion valve set at 4.5 bar
Expansion Vessel size.
Pre-charged to 3 bar
Overall Height
Overall Diameter
Pressure & Temperature
Relief Valve 6bar 90°C
22mm Secondary
Return Tapping
On Peak Immersion
Heater - High Level
Cold Feed 22mm
Compression Connection
O Peak Immersion
Heater - Low Level
Volume of On Peak Water
Heated
22mm Solar Return
Compression Connection
22mm Solar Flow
Compression Connection
Dual Control & Overheat Stat
Solar Pocket
Solar Pocket
Second O Peak Immersion
Heater - Low Level
Surface Area of
Solar Heater Coil
Pressure Loss Across Solar Heater
Coil
Heat Up Time from 15°C to 60°C
(applies to Primary Heat Source only)
Dedicated Solar Volume
Watts
kW/24hr
% kWh °C db Litres kg kg bar Litres A=mm mm B=mm C=mm D=mm E=mm F=mm Litres K=mm L=mm M=mm N=mm P=mm mm m2bar min Litres
Direct
D90
PLUDR090 L C 32 0.77 37 2745 62 15 91 18 109 3 12 764 550 522 n/a n/a 220 240 n/a n/a n/a n/a n/a n/a n/a n/a n/a 90 n/a
D120
PLUDR120 L C 39 0.94 37 2760 62 15 119 21 140 3 12 931 550 689 n/a 499 220 240 53.3 n/a n/a n/a n/a n/a n/a n/a n/a 119 n/a
D150
PLUDR150 L C 47 1.13 37 2753 62 15 148 25 173 3 18 1118 550 876 n/a 605 220 240 66.3 n/a n/a n/a n/a n/a n/a n/a n/a 150 n/a
D180
PLUDR180 L C 55 1.32 37 2768 62 15 178 28 206 3 18 1306 550 1064 n/a 327 220 240 141.3 n/a n/a n/a n/a n/a n/a n/a n/a 179 n/a
D210
PLUDR210 L C 62 1.49 37 2737 62 15 208 32 240 3 25 1494 550 1252 1141 815 220 240 93 n/a n/a n/a n/a n/a n/a n/a n/a 209 n/a
D250
PLUDR250 L C 74 1.78 37 2747 62 15 248 36 284 3 25 1744 550 1502 1353 955 220 240 110.7 n/a n/a n/a n/a n/a n/a n/a n/a 249 n/a
D300
PLUDR300 L C 86 2.06 38 2669 62 15 287 41 328 3 35 1990 550 1748 1562 1092 220 477 128.3 n/a n/a n/a n/a n/a n/a n/a n/a 299 n/a
Direct Slimline
D90-SL
PLUDR090SL L C 37 0.89 37 2698 62 15 91 18 106 3 12 976 475 750 n/a n/a 210 227 n/a n/a n/a n/a n/a n/a n/a n/a n/a 90 n/a
D120-SL
PLUDR120SL L C 47 1.13 37 2765 62 15 122 23 143 3 12 1248 475 1022 n/a 680 210 227 53.2 n/a n/a n/a n/a n/a n/a n/a n/a 119 n/a
D150-SL
PLUDR150SL M C 56 1.37 36 1425 62 15 152 27 176 3 18 1519 475 1293 n/a 832 210 227 66.6 n/a n/a n/a n/a n/a n/a n/a n/a 150 n/a
D180-SL
PLUDR180SL L C 67 1.61 37 2754 62 15 183 31 212 3 18 1791 475 1565 n/a 984 210 291 80 n/a n/a n/a n/a n/a n/a n/a n/a 179 n/a
D210-SL
PLUDR210SL L C 74 1.77 37 2718 62 15 202 34 231 3 25 1963 475 1737 1551 1080 210 328 88.6 n/a n/a n/a n/a n/a n/a n/a n/a 209 n/a
Solar Direct
SOL180d
PLUDR180S n/a B 55 1.32 n/a n/a n/a n/a 178 30 208 3 18 1306 550 1064 n/a 811 385 527 63.3 235 365 473 1064 243 n/a 0.68 0.191 n/a 60
SOL210d
PLUDR210S n/a B 62 1.49 n/a n/a n/a n/a 208 34 242 3 25 1494 550 1252 1141 933 385 583 74 235 365 473 1064 243 n/a 0.68 0.191 n/a 70
SOL250d
PLUDR250S n/a C 74 1.78 n/a n/a n/a n/a 248 39 287 3 25 1744 550 1502 1353 1095 505 673 88 235 485 548 1252 275 n/a 0.97 0.241 n/a 84
SOL300d
PLUDR300S n/a C 86 2.06 n/a n/a n/a n/a 287 43 330 3 35 1990 550 1748 1562 1255 505 767 102 235 485 622 1436 305 n/a 0.97 0.241 n/a 100
SOL400d
PLUDR400S n/a C 87 2.09 n/a n/a n/a n/a 393 49 449 3 2 x 25 2030 630 1784 1592 1296 557 691 140 238 548 651 1383 334 n/a 1.27 0.31 n/a 150
Solar Direct Slimline
SOL 180d-SL
PLUDR180SSL n/a C 67 1.61 n/a n/a n/a n/a 183 34 215 3 18 1791 475 1565 n/a 1130 445 722 63.6 195 425 612 1292 280 n/a 0.68 0.191 n/a 60
SOL 210d-SL
PLUDR210SSL n/a C 74 1.77 n/a n/a n/a n/a 202 36 233 3 25 1963 475 1737 1551 1242 445 778 70.3 195 425 668 1421 301 n/a 0.68 0.191 n/a 70
A
C
Direct
D
F
E
B
A
Solar Direct
C
N
M
L
P
E
K
B
D
F
NOTES
1. Not all models - see table 1.
2. Recovery times based on Primary
Coil/I.H. duty (ie. assumes the boiler
output is adequate).
3. All connections are supplied with
compression fittings for direct
connection to copper pipework.
4. The diagrams shown are generic.
For exact product specification
refer to the table eg. the number
of immersion heaters varies
depending on model.
5. Heat up and recovery times based
on 0.25 l/s primary ow rate and at
82°C ow temperature.
DESIGN DESIGN
TECHNICAL INFORMATION TECHNICAL INFORMATION
5
3
°
1
5
°
1
5
°
1
5
°
7
,
5
°
Page 8 Page 9
Table 2 - Indirect Models
Model
Stock Code
Energy Eciency Class
Heat Loss
Capacity (Total Volume)
Weight - Empty
Weight - Full
Pressure Regulator 3 bar inlet group c/w balance
cold supply, expansion vessel connection and
expansion valve set at 4.5 bar
Expansion Vessel size.
Pre-charged to 3 bar
Overall Height
Overall Diameter
Pressure & Temperature
Relief Valve 6bar 90°C
22mm Secondary
Return Tapping
On Peak Immersion
Heater - High Level
Cold Feed 22mm
Compression Connection
O Peak Immersion
Heater - Low Level
Volume of On Peak Water
Heated
Dual Control & Overheat Stat
Extra Stat Pocket
For Boiler Use If Required
22mm Primary Return Compression
Connection
(28mm tails for 400 litre model)
22mm Primary Flow Compression
Connection
(28mm tails for 400 litre model)
22mm Solar Return
Compression Connection
22mm Solar Flow
Compression Connection
Dual Control & Overheat Stat
Solar Pocket
Solar Pocket
Second O Peak Immersion
Heater - Low Level
kW Rating of Primary Coil
Surface Area of
Primary Heater Coil
Pressure Loss Across
Primary Heater Coil
Surface Area of
Solar Heater Coil
Pressure Loss Across Solar Heater
Coil
Heat Up Time from 15°C to 60°C
(applies to Primary Heat Source only)
Dedicated Solar Volume
Watts
kW/24hr
Litres kg kg bar Litres A=mm mm B=mm C=mm D=mm E=mm F=mm Litres G=mm H=mm I=mm J=mm K=mm L=mm M=mm N=mm P=mm R=mm kW m2bar m2bar min Litres
Indirect
IND90
PLUIN090 A 32 0.77 91 20 111 3 12 764 550 522 n/a 382 345 n/a 45.1 272 n/a 235 325 n/a n/a n/a n/a n/a n/a 16.5 0.59 0.165 n/a n/a 17 n/a
IND120
PLUIN120 B 39 0.94 119 23 142 3 12 931 550 689 n/a 437 345 n/a 63.1 327 n/a 235 325 n/a n/a n/a n/a n/a n/a 18 0.59 0.165 n/a n/a 21 n/a
IND150
PLUIN150 B 47 1.13 148 26 174 3 18 1118 550 876 n/a 499 385 n/a 83.2 389 n/a 235 365 n/a n/a n/a n/a n/a n/a 18.5 0.68 0.191 n/a n/a 25 n/a
IND180
PLUIN180 B 55 1.32 178 30 208 3 18 1306 550 1064 n/a 561 425 n/a 103.4 451 n/a 235 405 n/a n/a n/a n/a n/a n/a 19 0.78 0.216 n/a n/a 30 n/a
IND210
PLUIN210 B 62 1.49 208 33 241 3 25 1494 550 1252 1141 632 425 n/a 123.7 513 n/a 235 405 n/a n/a n/a n/a n/a n/a 20.5 0.78 0.216 n/a n/a 32 n/a
IND250
PLUIN250 C 74 1.78 248 38 286 3 25 1744 550 1502 1353 955 505 705 110.5 595 n/a 235 485 n/a n/a n/a n/a n/a n/a 21.5 0.97 0.241 n/a n/a 36 n/a
IND300
PLUIN300 C 86 2.06 287 43 330 3 35 1990 550 1748 1562 1092 505 786 128.5 676 n/a 235 485 n/a n/a n/a n/a n/a n/a 25 0.97 0.241 n/a n/a 38 n/a
IND400
PLUIN400 C 87 2.09 393 55 455 3 2 x 25 2030 630 1787 1595 1117 566 799 180 669 n/a 235 546 n/a n/a n/a n/a n/a n/a 30.5 1.27 0.31 n/a n/a 41 n/a
Indirect Slimline
IND60-SL
PLUIN060SL A 27 0.66 62 16 75 3 12 704 475 478 n/a 393 325 n/a 24.3 253 n/a 195 305 n/a n/a n/a n/a n/a n/a 15 0.49 0.165 n/a n/a 13 n/a
IND90-SL
PLUIN090SL B 37 0.89 91 20 108 3 12 976 475 750 n/a 453 365 n/a 48.1 343 n/a 195 345 n/a n/a n/a n/a n/a n/a 16.5 0.59 0.165 n/a n/a 17 n/a
IND120-SL
PLUIN120SL B 47 1.13 122 24 144 3 12 1248 475 1021 n/a 542 365 n/a 68.6 432 n/a 195 345 n/a n/a n/a n/a n/a n/a 18 0.59 0.165 n/a n/a 21 n/a
IND150-SL
PLUIN150SL B 56 1.37 152 28 177 3 18 1519 475 1294 n/a 632 445 n/a 89 522 n/a 195 425 n/a n/a n/a n/a n/a n/a 18.5 0.68 0.191 n/a n/a 25 n/a
IND180-SL
PLUIN180SL C 67 1.61 183 32 213 3 18 1791 475 1566 n/a 722 485 n/a 109.4 612 n/a 195 465 n/a n/a n/a n/a n/a n/a 19 0.78 0.216 n/a n/a 30 n/a
IND210-SL
PLUIN210SL C 74 1.77 202 35 232 3 25 1963 475 1737 1551 778 485 n/a 122.4 668 n/a 195 465 n/a n/a n/a n/a n/a n/a 20.5 0.78 0.216 n/a n/a 32 n/a
Solar Indirect
SOL180i
PLUIN180S B 55 1.32 178 31 209 3 18 1306 550 1064 n/a 693 385 n/a 82.2 859 n/a 879 969 235 365 451 941 220 n/a 18 0.59 0.165 0.68 0.191 28 96
SOL210i
PLUIN210S B 62 1.49 208 35 243 3 25 1494 550 1252 1141 736 385 n/a 105.5 922 n/a 922 1052 235 365 513 1064 243 n/a 18.5 0.68 0.191 0.68 0.191 35 101
SOL250i
PLUIN250S C 74 1.78 248 40 288 3 25 1744 550 1502 1353 796 505 n/a 136 1002 n/a 982 1152 235 485 595 1252 275 n/a 19 0.78 0.216 0.97 0.241 38 107
SOL300i
PLUIN300S C 86 2.06 287 44 331 3 35 1990 550 1748 1562 922 505 n/a 155.3 1128 n/a 1108 1278 235 485 676 1128 305 n/a 20.5 0.78 0.216 0.97 0.241 41 125
SOL400i
PLUIN400S C 87 2.09 393 59 459 3 2 x 25 2030 630 1784 1592 872 557 n/a 190 1060 n/a 930 1190 238 548 651 1383 357 n/a 22 0.97 0.241 1.27 0.31 45 165
Solar Indirect Slimline
SOL180i-SL
PLUIN180SSL C 67 1.61 183 34 215 3 18 1791 475 1566 n/a 722 365 n/a 109.4 939 n/a 824 1054 195 345 612 1292 280 n/a 18 0.59 0.165 0.68 0.191 28 60
SOL210i-SL
PLUIN210SSL C 74 1.77 202 36 233 3 25 1963 475 1738 1551 778 445 n/a 122.4 995 n/a 880 1110 195 425 668 1421 301 n/a 18.5 0.68 0.191 0.68 0.191 35 70
A
C
Indirect
D
F
E
I
J
B
G
I
Solar Indirect
N
G
P
E
K
D
A
B
J
M
L
C
NOTES
1. Not all models - see table 2.
2. Recovery times based on Primary
Coil/I.H. duty (ie. assumes the boiler
output is adequate).
3. All connections are supplied with
compression fittings for direct
connection to copper pipework.
4. The diagrams shown are generic.
For exact product specification
refer to the table eg. the number
of immersion heaters varies
depending on model.
5. Heat up and recovery times based
on 0.25 l/s primary ow rate and at
82°C ow temperature.
DESIGN DESIGN
TECHNICAL INFORMATION TECHNICAL INFORMATION
5
3
°
1
5
°
1
5
°
1
5
°
7
,
5
°
Page 10 Page 11
StainlessLite Plus Direct
Basic Appliance
1. Hot water draw o (22mm) compression
2. Pressure and temperature relief valve
89-96°/6 bar
3. Hot water secondary return 22mm
(not tted to smaller sizes, see table 1)
4. Immersion heater 1¾” BSP 3kW
(normally on-peak)
5. 22mm cold supply compression
6. Immersion heater 1¾” BSP 3kW
(normally o-peak)
Additional immersion heater 1¾” BSP 3kW
(normally o-peak - 400 litre model only)
Part G3 loose components supplied in a
separate box
A. Combination inlet group incorporating
pressure reducing valve, strainer, check
valve, balance cold take o point, expansion
relief valve and expansion vessel connection
points.
B. Potable expansion vessels c/w exible hose
and integral wall bracket
C. Tundish
StainlessLite Plus Indirect
Basic Appliance
1. Hot water draw o (22mm) compression
2. Lift up temperature & pressure relief valve
89-96°/6 bar
3. Hot water secondary return 22mm
(not tted to smaller sizes, see table 2)
4. Immersion heater 1¾” BSP 3kW
5. 22mm cold supply compression
6. Immersion heater 1¾” BSP 3kW
7. Dual control/overheat stat pocket (22mm)
8. Primary return (22mm)
- (28mm tails for 400 litre models)
9. Primary ow (22mm)
- (28mm tails for 400 litre models)
Part G3 loose components supplied in a
separate box
A. Combination inlet group incorporating
pressure reducing valve, strainer, check
valve, balance cold take o point, expansion
relief valve and expansion vessel connection
points.
B. Potable expansion vessels c/w exible hose
and integral wall bracket
C. Tundish
D. Dual control thermostat and combined
overheat thermostat
E. Two por t (22mm) zone valve for
primary circuit
F. Wiring junction box for primary system
1
2
5
3
4
6
1
2
3
4
7
5
6
8
9
1
2
5
3
4
11
9
6
12
12
10
7
8
StainlessLite Plus Direct Solar
Basic Appliance
1. Hot water draw o (22mm) compression
2. Lift up temperature & pressure relief valve
89-96°/6 bar
3. Hot water secondary return 22mm
(not tted to smaller sizes, see table 1)
4. Immersion heater 1¾” BSP 3kW
(normally on-peak)
5. 22mm cold supply
6. Immersion heater 1¾” BSP 3kW
(normally o-peak)
7. Dual control/Overheat stat pocket (solar)
8. Solar coil return to panel collector (22mm)
compression
9.
Solar coil ow from panel (22mm) compression
10. Solar thermostat pocket
Part G3 loose components supplied in a
separate box
A.
Combination inlet group incorporating
pressure reducing valve, strainer, check valve,
balance cold take o point, expansion relief
valve and expansion vessel connection points.
B. Potable expansion vessels c/w exible hose
and integral wall bracket
C. Tundish
D. Dual control thermostat and combined
overheat thermostat
StainlessLite Plus Indirect Solar
Basic Appliance
1. Hot water draw o (22mm) compression
2. Lift up temperature & pressure relief valve
89-96°/6 bar
3. Hot water secondary return 22mm
(not tted to smaller sizes, see table 2)
4. Immersion heater 1¾” BSP 3kW
5. 22mm cold supply
6. Dual control/Overheat stat pocket (solar)
7. Primary return (22mm)
- (28mm tails for 400 litre models)
8. Primary ow (22mm)
- (28mm tails for 400 litre models)
9. Dual control/Overheat stat pocket (boiler)
10. Solar coil return to panel collector (22mm)
compression
11.
Solar coil ow from panel (22mm) compression
12. Solar thermostat pocket
Part G3 loose components supplied in a
separate box
A.
Combination inlet group incorporating
pressure reducing valve, strainer, check valve,
balance cold take o point, expansion relief
valve and expansion vessel connection points.
B. Potable expansion vessels c/w exible hose
and integral wall bracket
C. Tundish
D. Dual control thermostat and combined
overheat thermostat (x2)
E. Two por t (22mm) zone valve for
primary circuit
F. Wiring junction box for primary system
1
2
5
3
4
9
10
10
6
8
7
DESIGN DESIGN
SYSTEM DESIGN SYSTEM DESIGN
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