Simplicity 990960 Specifications

THE
RANGE
GUIDE
MADE IN BRITAIN
The Main range of affordable combi, system and
heat only boilers, cylinders and water heaters.
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WITH
IT’S
Contents
VED
IMPRO
Main Combi Eco Elite
Page 4
High efficiency Main Combi boiler, featuring tried and tested technology.
VED
IMPRO
Main System Eco Elite
Page 6
With the highest energy efficiency rating possible, the Main System Eco Elite
satisfies all hot water and heating requirements.
Main HE A
Page 8
This heat only boiler has the highest possible efficiency rating
– and comes in 5 outputs to suit any job.
Technical specifications
Page 10
Main unvented cylinder
Page 12
Fulfils the hot water requirements of a range of domestic properties.
Available as a direct and indirect model.
Main solar unvented hot water cylinder
Page 16
Fulfils the hot water requirements of a range of domestic properties. Compatible with
a range of solar applications. Available as a direct and indirect model.
Main water heater
Page 20
Two modern, sleek models ideal for properties with a high demand for hot water.
Flue options
Page 22
Flue positioning and controls
Page 24
A clear and simple illustrated guide to the flue systems and accessories required
for the Main range.
Works loyalty scheme
Page 26
Main product support & t raining
Page 27
Main offers a comprehensive aftersales service, expert technical advice
and a range of training courses.
2
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At Main, we only offer products and services that are
straightforward, effective, efficient – and don’t break the bank.
That means a wide range of reliable, easy-to-install, low
maintenance boilers, cylinders and water heaters – as well
as a range of heating controls that save your customers even
more money. On top of all that, Main training and support
services are there to offer help when you want it.
It’s everything you need. It’s JOB DONE.
Our range
Main has a wide range of award-winning combi, system and heat only boilers
– in a range of outputs to suit every job. So whether you’re replacing an old boiler
or installing a new system, we have everything you need to get the job done.
Of course, we don’t just offer boilers and accessories, we also have a range of
unvented hot water cylinders to complement them. You’ll find all the details you
need on all our products in this easy-to-understand brochure – including technical
specifications and flue options.
Our service
To make it easier for you to get the job done, we offer FREE training courses and
technical support, so you’ll always have the very latest Main product knowledge.
And because our dedicated training centres are spread across the UK, you’ll always
be within easy reach, wherever you are. See page 27 for details.
Although our products are easy to install and simple to maintain, sometimes you just
need a bit of help and advice. That’s why we also have heateam – our service division
with a dedicated service centre and a field of over 280 engineers.
You can reach them on 0844 871 1570 and there’s more about them on page 27.
Our heritage
We’ve been designing and building boilers in the UK for more than 75 years,
working to the highest standards and ensuring the highest quality.
It’s given us a proud reputation for excellence in our industry – a reputation
MADE IN BRITAIN
that’s strengthened with each outstandingly reliable boiler, cylinder or water
heater we develop.
It all means that when you install Main, you install a product you can depend
on to get the job done.
3
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PERFECT FOR YOUR CUSTOMERS:
THE
COMBI
ECO
ELITE
• Simple and reliable
Main technology
• Provides energy-efficient
heating and hot water
• Instantaneous hot water, 24/7
ITH
OP
NOW W
LING LO
L
I
F
D
N
A
CLOCK
NDARD
AS STA
Automatic Air Vent
Flue Elbow
Overheat
Thermostat Sensor
Combustion
Inspection Points
Cast Aluminium/
Silicon Alloy
Heat Exchanger
Ignition
Electrode
Easy installation
Flame Sensing
Electrode
• Like all our boilers, the Combi Eco Elite range
is easy to install.
Burner Mixing Chamber
• A free one-piece pre-plumbing jig is included as
standard helping you get the pipework in the
right place, first time.
• Electrical connections are housed separately to
the PCB, making the job quick and easy to finish.
Air Inlet
Silencer
Expansion
Vessel
Fan
Grundfos Pump
Water Pressure Sensor
Condensate Drain
Gas Valve
High efficiency
• All Combi Eco Elite boilers have a SEDBUK
Band A rating and low Nox emissions.
That’s better for the planet and better for
your customers.
Electrical Power Terminal
Pressure Gauge
Dimensions and minimum clearances
Low maintenance
5mm
450mm
• Built entirely in the UK, using high quality
and well-finished components such as a
Grundfos pump.
5mm
5mm in operation
450mm for servicing
200mm
min*
• Layout of components allows for straightforward
and speedy servicing and repairs.
780mm
• If something does go wrong, though, you can
rest assured that our 2-year parts and labour
warranty† is there to back you up.
200mm
† See page 27 for more details.
For specifications please see page 10 and for flue options
see page 22.
*300mm min if using
80/125mm flueing system
345mm
4
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D SAVE
L
U
O
C
S
OMER
ONE
T
H
S
T
U
I
C
W
R
Y
YOU
MONE
E
R
ROLS.
O
T
M
N
N
O
E
C
V
G
E
HEATIN
R
U
O
AILS.
F
T
O
E
D
R
O
E 25 F
G
A
P
E
E
S
Flap down on boiler for illustration purposes.
5
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PERFECT FOR YOUR CUSTOMERS:
THE
SYSTEM
ECO
ELITE
• Simple and reliable
Main technology
• Providing energy efficient
heating and domestic
hot water
• Easy to use, intuitive controls
OK
NEW LO
H
T
I
W
EL
NOW
OL PAN
CONTR
Automatic Air Vent
Flue Elbow
Easy installation
Overheat
Thermostat Sensor
• Like all our boilers, the System Eco Elite range
is easy to install.
Cast Aluminium/
Silicon Alloy
Heat Exchanger
• A free one-piece pre-plumbing jig is included as
standard helping you get the pipework in the right
place, first time.
• Electrical connections are housed separately to
the PCB, making the job quick and easy to finish.
Combustion
Inspection Points
Ignition
Electrode
Flame Sensing
Electrode
Air Inlet
Silencer
Expansion
Vessel
Burner Mixing Chamber
Fan
High efficiency
• All System Eco Elite boilers have a SEDBUK
Band A rating and low Nox emissions. That’s
better for the planet and better for your customers.
Low maintenance
• Built entirely in the UK, using high quality
and well-finished components such as a
Grundfos pump.
• Layout of components allows for straightforward
and speedy servicing and repairs.
Grundfos Pump
Water Pressure Sensor
Condensate Drain
Gas Valve
Electrical Power Terminal
Pressure Gauge
Dimensions and minimum clearances
5mm
450mm
5mm in operation
450mm for servicing
200mm
min*
• Complete with a built in pump overrun and
integral system bypass to prolong the life of
the boiler.
• If something does go wrong, though, you can
rest assured that our 2-year parts and labour
warranty† is there to back you up.
780mm
† See page 27 for more details.
For specifications please see page 10 and for flue options
see page 22.
5mm
200mm
*300mm min if using
80/125mm flueing system
345mm
6
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ESIGNED
D
S
I
E
T
I
L
M ECO E BLE WITH OUR
E
T
S
Y
S
THE
OMPATI
FFERING
TO BE C D CYLINDER O TION.
E
UNVENT OMPLETE SOLU
.
THE C
DETAILS
R
O
F
2
E1
SEE PAG
7
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THE
HE A
PERFECT FOR YOUR CUSTOMERS:
• Providing energy efficient
heating
• A wide range of outputs
to suit different sized
properties
• Compact cupboard fit design
Easy installation
• A one piece pre-plumbing jig is included as
standard helping you get the pipework in the
right place, first time.
• Electrical connections are housed separately
to the PCB, making the job quick and easy
to finish.
• It’s low in weight, compact and has minimal
installation clearances, and can fit in an
over-the-counter kitchen cupboard.
Return Pipe
Connection
(behind)
Flow Switch
Heat Exchanger
Flow Pipe
Connection
Wiring Terminal
High efficiency
Burner
• All Main Heat Only boilers have a SEDBUK
Band A rating and low Nox emissions.
That’s better for the planet and better for
your customers.
Airbox
Gas Valve
(behind)
Fan Protection
Thermostat
Fan Assembly
Condensate
Trap
PCB Housing
Low maintenance
• Built entirely in the UK, using high quality
and well-finished components such as a
Grundfos pump.
• Layout of components allows for straightforward
and speedy servicing and repairs.
Dimensions and minimum clearances
5mm
min
390mm
5mm min
• If something does go wrong, though, you can
rest assured that our 2-year parts and labour
warranty† is there to back you up.
200mm
min
† See page 27 for more details.
600mm
5mm min in operation
500mm for servicing
3° (1 in 20) or
1.5° providing
flue has been
adequately
clamped as
per installation
instructions
For specifications please see page 11 and for flue options
see page 23.
50mm min
280mm
8
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IGNED R
S
E
D
S
I
U
A
THE HE ATIBLE WITH O
OMP
FFERING
TO BE C D CYLINDER O TION.
E
UNVENT OMPLETE SOLU
.
THE C
DETAILS
R
O
F
2
E1
SEE PAG
Condensation pipe not shown.
9
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ECO ELITE SPECIFICATIONS
Model
Units
Main Combi
25 Eco Elite
Main Combi
30 Eco Elite
Main System
24 Eco Elite
Main System
28 Eco Elite
Boiler only code
7210777
7210778
7210827
7210828
Boiler (including 24 hr mechanical clock & rigid filling loop)
& standard flue code
7210779
7210780
N/A
N/A
Yes
Yes
Yes
Yes
Controls
User adjustable CH (combi only) & DHW temperature
Covered controls
Yes
Yes
Yes
Yes
Fault status display
Yes
Yes
Yes
Yes
Integral 24 hr electro-mechanical timer
Standard
Standard
N/A
N/A
Integral 7 day electronic timer
Optional
Optional
N/A
N/A
Wireless programmable room thermostat
Optional
Optional
N/A
N/A
Gas
Yes
Yes
Yes
Yes
Inlet supply pressure (natural gas)
Natural gas
mbar
20
20
20
20
Gas rate
m3/hr
2.76
3.17
2.76
3.1
Heat input (maximum)
kW
28.92
32.54
28.92
32.54
Heat output – condensing (maximum)
kW
26.95
30.2
26.95
30.2
Heat output – condensing (minimum)
kW
8.37
9.42
8.37
9.42
Heat output – non-condensing (maximum)
kW
25.94
28.63
25.94
28.63
Heat output – non-condensing (minimum)
kW
7.61
8.56
7.61
8.56
Domestic hot water flow rate (maximum) @ 35°c rise
litres/min
10.2
12.3
N/A
N/A
Domestic hot water flow rate (minimum)
litres/min
2
2
N/A
N/A
91.0%
A-90.1%
A-91.1%
A-90.2%
SEDBUK (2005)
SEDBUK (2009)
89.0%
88.7%
89.0%
88.7%
Class
5
5
5
5
Electrical supply
Volts/Hz
230/50
230/50
230/50
230/50
Power consumption
Watts
150
150
150
150
External fuse rating
Amps
NOx
Electrical
3
3
3
3
Ingress protection rating (as supplied)
IPX4D
IPX4D
IPX4D
IPX4D
Pump overrun
Yes
Yes
Yes
Yes
24hr pump exercise
Yes
Yes
Yes
Yes
Integral frost thermostat (boiler protection only)
Yes
Yes
Yes
Yes
kg
47.5
47.5
44.5
44.5
DHW system pressure (maximum)
bar
8
8
N/A
N/A
DHW operating pressure (minimum)
bar
0.15
0.15
N/A
N/A
Safety pressure discharge
bar
3
3
3
3
Yes
Yes
Yes
Yes
Weight
Installation lift weight
Mechanical & hydraulic
Integral automatic bypass
CH system capacity (maximum)
litres
125
155
125
155
Gas supply pipe size
mm
22
22
22
22
Flow & return pipe size (CH)
mm
22
22
22
22
Flow & return pipe size (DHW)
mm
15
15
N/A
N/A
Filling loop
Standard
Standard
Optional
Optional
Compartment ventilation required
No
No
No
No
Pre-plumbing jig
Standard
Standard
Standard
Standard
Flue systems
Standard concentric flue diameter
mm
60/100
60/100
60/100
60/100
Maximum equivalent length (60/100)
m
10
10
10
10
Optional
Optional
Optional
Optional
Stand off bracket
Combi and system boilers 5117035
10
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HE A SPECIFICATIONS
Model
Units
Main 12 HE A
Main 15 HE A
Main 18 HE A
Main 24 HE A
Main 30 HE A
720357201
720357301
720357401
720357501
720357601
Concealed user controls
Yes
Yes
Yes
Yes
Yes
LED operating status display
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Part number
Controls
Gas
Natural gas
Inlet supply pressure
mbar
20
20
20
20
20
Maximum gas rate
m³/hr
1.34
1.64
1.94
2.31
2.95
Central heating input (max)
kW
13.34
16.9
20.2
24.5
33.8
Central heating output – condensing (max)
kW
12.81
16.5
19.3
23.8
32.6
Central heating output – non condensing (max)
kW
11.82
15.2
17.8
22
30.2
SEDBUK (2005)
90.5%
91.3%
90.4%
90.9%
90.9%
SEDBUK (2009)
88.7%
89.0%
88.7%
88.8%
88.8%
NOx class
5
5
5
5
5
230/50
230/50
230/50
230/50
230/50
No
No
No
No
No
Electrical
Electrical supply
Volts/Hz
Permanent live required
Power consumption
Watts
80
80
80
80
80
External fuse rating
Amps
3
3
3
3
3
Boiler IPX rating (electrical protection)
IPX2
IPX2
IPX2
IPX2
IPX2
Integral ‘boiler only’ frost thermostat
No
No
No
No
No
26
26
26
26
26
Weight
Maximum installation lift weight
kg
Mechanical & hydraulic
Gas supply connection
/2” BSPT
/2” BSPT
/2” BSPT
/2” BSPT
1
22
22
22
22
22
Condensate drain connection
1” BSP
1” BSP
1” BSP
1” BSP
1” BSP
Compartment ventilation required
No
No
No
No
No
mm
1
/2” BSPT
1
Central heating connections
1
1
Flue systems
Concentric flue diameter
mm
70/110
70/110
70/110
70/110
70/110
Max. equivalent horizontal length (70/110)
m
4
4
4
4
4
Max. equivalent vertical length (70/110)
m
4
4
4
4
4
Twin pipe flue diameter
mm
80/80
80/80
80/80
80/80
80/80
Max. equivalent vertical length
m
75
75
75
75
75
Max. equivalent horizontal length
m
75
75
75
75
75
m
29
29
29
29
22
Twin flue system
Plume displacement kit
Max. equivalent vertical length
11
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THE
UNVENTED
CYLINDER
Easy installation
PERFECT FOR YOUR CUSTOMERS:
• Front access to controls and connections for
easy installation.
• Replacing existing cylinders
• Designed to work with the Main HE A and Main
System Eco Elite range of boilers providing you
with the complete solution to your project, with
no compatibility issues.
Energy efficient
• Suitable for low mains
pressure areas
• Ideal for homes with more
than one bathroom
• Indirect and direct models
available
• Coil-in-coil heat exchanger ensures rapid heat
recovery while promoting energy efficiency.
• All cylinders are manufactured in the UK where
we inject 50mm of polyurethane foam between
the cylinder and the casing to increase insulation
and save energy.
Low maintenance
• High grade stainless steel inner cylinder
prolongs product life and ensures low
maintenance.
• The incoloy 800 alloy sheathed elements are
designed to resist corrosion, a common problem
with other unvented cylinders.
• Our indirect heating coil is fitted with an electric
immersion heater as back up, leaving you and
your customers confident they will have hot
water whenever they need it.
• We’re so confident of the quality of our unvented
cylinder, we offer a one year parts and labour
warranty, and will guarantee the stainless steel
shell for a further 24 years†.
Compatible with:
Main
System
Eco Elite
Main
HE A
† See page 27 for more details.
For specifications please see pages 14-15.
12
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†
13
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SPECIFICATIONS
Element – Long-life removable Incoloy 800 sheathed
element, rated 3.0kW @ 240V. Direct models are fitted
with two 3.0kW immersion heaters as standard.
Installation
Main unvented cylinders must be installed by a competent
installer in accordance with local regulations:
England & Wales – Building regulation G3.
Scotland – Technical standards P3.
Outer casing – A combination of resilient thermoplastic
mouldings and plastic coated corrosion proofed
steel sheet.
Thermal insulation – CFC/HCFC free (ODP ZERO) fire
retardant expanded polyurethane. 50mm thickness.
N. Ireland – Building regulation P5.
Fixing – Feet on bottom moulding for floor mounting.
Plumbing connections – Inlet/Outlet, 22mm compression
fittings / 3/4” BSP parallel thread.
Primary coil – 22mm compression fittings / 3/4” BSP
parallel thread.
Temperature and pressure relief valve – 15mm
compression outlet.
Inner container – High grade stainless steel, pressure
tested to 15 bar.
Cold water control – Integrated cold water control set
comprising pressure reducing valve and strainer – factory
set at 3.5 bar, expansion relief valve – factory set at 6 bar
and check valve. 22mm compression fittings.
Primary coil – 22mm diameter stainless steel.
Coil-in-coil design for improved performance.
Mains pressure – Min 1.5 bar, Max 16 bar. A 2-port
motorised valve is supplied with indirect models.
Flow rates – Up to 55 litres per minute @ 6 bar pressure.
Thermostat – Element thermostat adjustable from
10°C to 70°C.
Operating pressure – 3.5 bar.
Expansion relief valve pressure – 6.0 bar.
Operating temperature – Recommended 60°C.
Adjustable 10-70°C.
Safety features – Temperature and pressure relief valve,
factory set to operate at 10 bar and 90°C. High limit
thermostat, factory set at 80°C. Direct models – Manually
re-settable cut-out on heating element operates at 80°C.
Water expansion – Remote expansion vessel
12 litre vessel supplied with 120 and 150 litre models.
18 litre vessel supplied with 170 and 210 litre models.
24 litre vessel supplied with 250 and 300 litre models.
Indirect models – Must be wired in series with the
supplied two-port motorised valve to provide primary
over temperature protection.
If there are any doubts about water supply pressure or flow
rates, please contact our Specification Advice Team
to discuss on 0845 026 4620.
Anode – None required.
Approvals – KIWA approved for water regulations
and building regulation G3. Manufactured in the
UK in a BS EN ISO 9001:2008 registered factory.
CE marked for compliance with LVD, EMC & pressure
equipment directives.
Minimum water supply requirements – Recommended
minimum supply pressure – 1.5 bar/20 l/min flow rate.
Secondary circulation – Via 22 x 22 x 15mm swept tee,
which should be fitted to the inlet pipework. Secondary
Circulation is not recommended for direct units being used
with off-peak electricity tariffs.
Pressure testing – Units are tested to 15 bar.
Tundish – 15mm compression inlet and 22mm
compression outlet.
Electrical
Indirect models – Controls should be wired to the boiler,
programmer etc., in accordance with the control scheme
being used.
Direct models – Connection is direct to terminals in the
immersion heater which must be permanently connected to
the supply through a double-pole lined isolating switch with
a minimum breaking capacity of 13A.
All electrical wiring must conform to the latest IEE
Wiring Regulations.
14
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595
0
25°
30°
Dimensions and
45 performance
°
°
45
HOT OUTLET
T&P VALVE
315
306 - direct
COLD INLET
354 - indirect
PRIMARY FLOW
PRIMARY RETURN
595
B
A
Ø5
50
45°
25°
30°
45°
HOT OUTLET
Nominal
Capacity
(litres)
Type
Dimensions (mm)
Coil
Standing
T&P VALVE
Heat Loss
Per Day
(kWh/24h)
A
B
Rating (kW)
Heat Up
Time
(mins)
Recovery
(mins)
Heating
Time Direct
(mins)
Product Code
120
930
615
12.5
27
23
110
5133561
1.47
150
1114
800
12.5
38
24
142
5133562
1.70
170
1240
925
170
1240
925
16.0
33
25
210
1498
1184
210
1498
1184
250
1752
300
2067
163
205
720636101
5133563
720636201
5133564
1.92
2.30
16.0
41
29
1378
18.0
40
30
252
5135327
2.22
1693
19.0
47
35
304
5135328
2.52
B
Indirect
A
Direct
306 - direct
COLD INLET
354 - indirect
315
PRIMARY FLOW
PRIMARY RETURN
Unvented cylinder specification enquiries
Telephone: 0845 026 4620.
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THE
SOLAR THERMAL
UNVENTED
HOT WATER
CYLINDER
Energy efficient
PERFECT FOR YOUR CUSTOMERS:
• Unlike some other ‘twin coil’ cylinders, our cylinders
have a purpose designed solar heating coil at the
base of the cylinder, ensuring maximum heat input
and efficiency from the solar source.
• Provides energy efficient
domestic hot water
Easy installation
• Comes with all the benefits of the Main unvented
cylinder plus a whole lot more.
• Fast filling showers
and baths
• Powerful hot water from
your solar thermal water
heating system
• Designed specifically for solar applications to
make sure it does the job perfectly.
• To make things simple, the Main solar cylinder is
compatible with most solar thermal systems now
available in the UK.
• The remote expansion vessel can be
located in various places, to suit your installation
requirements.
Compatible with:
Main
System
Eco Elite
Low maintenance
• High grade stainless steel inner cylinder
prolongs product life and ensures low
maintenance.
• We’re so confident of the quality of our unvented
cylinder, we offer a one year parts and labour
warranty, and will guarantee the stainless steel
shell for a further 24 years†.
Main
HE A
† See page 27 for more details.
For specifications please see page 18-19.
*Savings vary depending on type of solar system used, location and usage patterns.
16
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SPECIFICATIONS
Siting the unit
The Main solar cylinder must be installed vertically.
Although location is not critical, the following points
should be considered:
• The Main solar cylinder should be sited to ensure
minimum dead leg distances, particularly to the point of
most frequent use.
• Avoid siting where extreme cold temperatures will be
experienced. All exposed pipework should be insulated.
• The discharge pipework from the safety valves must
have minimum fall of 1:200 from the unit and terminate in
a safe and visible position.
• Access to associated controls and immersion heaters
must be available to provide for the servicing and
maintenance of the system. Where these controls are
installed against a wall a minimum distance of 250mm
must be left.
• Ensure that the floor area for the Main solar cylinder is
level and capable of permanently supporting the weight
when full of water.
• Wherever possible the mains supply pipe should be
22mm. We suggest the minimum supply requirements
should be 1.5 bar pressure and 20 litres per minute
flow rate.
• The Main solar cylinder has an operating pressure of 3.5
bar which is controlled by the cold water combination
valve assembly. The cold water combination valve
assembly can be connected to a maximum mains
pressure of 16 bar.
Outlet/terminal fittings (taps, etc.)
• The Main solar cylinder can be used with most types of
terminal fittings.
• All fittings, pipework and connections must have a rated
pressure of at least 6 bar at 80°C.
Operational summary
Maximum mains pressure 16 bar
Operating pressure 3.5 bar
Expansion vessel charge pressure 3.5 bar
Expansion relief valve setting 6 bar
T&P relief valve setting 90°C/10 bar
Maximum primary circuit pressure
(auxiliary coil, indirect only) 3 bar
Maximum primary circuit pressure 6 bar (Solar coil)
Important note:
THE MAIN SOLAR CYLINDER MUST BE INCORPORATED
INTO A FULLY PUMPED SOLAR PRIMARY CIRCUIT.
CONTROL OF THE SOLAR PRIMARY IS ACHIEVED BY
THE USE OF EXTERNAL CONTROLS NOT SUPPLIED
WITH THE UNIT. CONTROL MUST BE VIA A PURPOSE
DESIGNED SOLAR HYDRAULIC STATION AND SOLAR
DIFFERENTIAL TEMPERATURE CONTROLLER.
Pipe fittings
All pipe fittings are made via 22mm compression fittings
directly to the unit. The fittings are threaded 3/4” BSP male
parallel should threaded pipe connections be required.
Cold feed
A 22mm cold water supply is recommended, however if a
15mm (1/2”) supply exists which provides sufficient flow
this may be used (although more flow noise may
be experienced).
A stopcock or servicing valve should be incorporated into
the cold water supply to enable the Main solar cylinder and
its associated controls to be isolated and serviced.
Drain tap
A suitable draining tap should be installed in the cold
water supply to the Main solar cylinder unit between
the expansion valve and the heater at as low a level as
possible. It is recommended that the outlet point of the
drain pipework be at least 1 metre below the level of
the heater.
Expansion vessel
The expansion vessel is pre-charged at 3.5 bar and must
be connected between the expansion valve and the Main
solar cylinder.
Secondary circulation
The secondary return pipe should be in 15mm pipe and
incorporate a check valve to prevent backflow. A suitable
WRAS approved bronze circulation pump will be required.
Outlet
Hot water distribution pipework should be 22mm pipe with
short runs of 15mm pipe to terminal fittings such as sinks
and basins.
Installation
Connection to solar primary circuit
The lower (solar) coil of the Main solar cylinder must
be connected to a fully pumped solar primary circuit.
The connections are suitable for 22mm copper pipe direct
to the compression fittings provided. The connections
are also threaded 3/4” BSP male parallel should BSP
be required.
Plumbing connections
Direct units require the following pipework connections.
• Cold water supply to and from inlet controls.
• Outlet to hot water draw off points.
• Discharge pipework from valve outlets to tundish.
• Connection to the auxiliary primary circuit
(Auxiliary/Indirect unit only).
Primary connections are 22mm compression.
However, 3/4” BSP parallel threaded fittings can be
fitted to the primary coil connections if required.
Electrical supply
Main solar units are fitted with 13kW immersion heater
on indirect units and 23kW immersions on direct units as
standard. The Main solar cylinder MUST be earthed.
The circuit must be protected by a suitable fuse and
double pole isolating switch with a contact separation of
at least 3mm in both poles.
18
91529 A4 Main Range Brochure.indd 18
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Dimensions and performance
595
Ø 550
25°
45°
30°
45°
HOT OUTLET
T&P VALVE
A
AUXILIARY FLOW
AUXILIARY RETURN
COLD INLET
373
415
C
D
B
PRIMARY FLOW
PRIMARY RETURN
Type
Dimensions (mm)
Auxiliary coil
A
B
C
D
Solar coil
surface
area (m2)
Auxiliary
volume
(litres)
Surface
area (m2)
Rating
(kW)
Heat up
(mins)
Recovery
(mins)
Product
code
210
1499
1184
1011
1095
1.1
120
0.68
15.2
33
17
720634801
250
1751
1391
1142
1258
1.1
145
0.79
15.2
40
21
720634901
300
2065
1715
1439
1574
1.1
175
0.79
17.4
42
22
720635001
Nominal
capacity
(litres)
Indirect
19
91529 A4 Main Range Brochure.indd 19
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PERFECT FOR YOUR CUSTOMERS:
THE
WATER
HEATER
• Provides businesses and
small households with high
hot water demand
• It only heats the water
needed for greater efficiency
• Creates space – no need for a
storage cylinder
Quality you
can trust
• Main has an unrivalled reputation for
offering reliable, safe, efficient and
easy-to-use water heaters.
Easy installation
420mm
285mm
• Installation is straightforward, thanks to the
simple 3-pipe connections with isolation
valves, pre-wired standard plug (FF) and
flexible flueing options.
• Ideal in homes with high hot water demand,
the Main FF (Fan Flue) and Main BF
(Balanced Flue) Water Heaters provide
instantaneous hot water without the need for
a storage cylinder.
• If you need to locate the heater away from an
external wall, the FF model is perfect. It has a
4-metre horizontal and vertical flue option
making siting easy.
846mm
Balanced flue model
420mm
285mm
Fan flue model
388mm
220mm
100mm
846mm
700mm
• The BF option comes with a Piezo Spark
Igniter, meaning no batteries or wiring are
needed – and both models have clear
temperature controls.
Flue options – balanced flue system
Low maintenance
• The key to our success is the simplicity of our
products. They do exactly what you need them
to do and they do it reliably. That means you
waste less time and money dealing with call
backs and maintenance issues.
388mm
220mm
Telescopic flue available in four length options to suit wall thickness from
100mm
100mm to 610mm:
Sales Code
Min. length 100mm (4 in.)
Max. length 150mm (6 in.)
Min. length 150mm (6 in.)
31/10321
700mm
31/10322
Max. length 230mm (9 in.)
Min. length 230mm (9 in.)
31/10323
Max. length 380mm (15 in.)
Min. length 380mm (15 in.)
31/10324
Max. length 610mm (24 in.)
The appliance may be mounted on a suitable existing terminal as above,
provided the requirements of the building regulations are maintained.
20
91529 A4 Main Range Brochure.indd 20
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SPECIFICATIONS
Model
Units
Balanced Flue Model
Fan Flue Model
Multipoint BF
Multipoint FF
Model name
Water heater code
5110173
5110174
30mm
120mm (Includes flue elbow)
Min service clearance above
mm
Min service clearance sides
mm
5mm
10mm
Min service clearance in front
mm
600mm
600mm
Min service clearance below
mm
75mm
50mm
Max DHW flow rate (Delta T @ 30°C max)
l/min
10.8 l/min
11.7 l/min
Max DHW flow rate (Delta T @ 35°C max)
l/min
9.3 l/min
10 l/min
Max DHW flow rate (Delta T @ 50°C max)
l/min
6.5 l/min
7 l/min
0.3 bar
Min operating DHW pressure required
bar
0.2 bar
Max DHW system pressure
bar
12 bar
12 bar
Minimum flow rate required
l/min
2.5 l/min
2.5 l/min
N/A
IPX4D
Yes
Yes
IP rating
Gas
Natural gas
Heat input (net)
kW
25.5
27
Heat output to water
kW
23
23.8
V
None
230 fused UK plug
Gas connection pipe size
mm
15
15
Water connection pipe size
mm
15
15
Electrical
Electrical connection
Mechanical & Hydraulic
Flue Systems
Maximum equivalent length horizontal
mm
610
4000
Maximum equivalent length vertical
mm
N/A
4000
kg
20
20
Weight
Installer lift weight
Concentric horizontal flues – water heaters
Concentric horizontal flue
arrangement
Key & OD dimension
Multifit sales
code
Standard horizontal flue kit
400mm
430183
Horizontal flue kit (long)
680mm
430184
Flue extension
1000mm
B4286
90 bend kit
31/19034
135 bend kit
31/19035
Telescopic flue elbow adaptor
430174
Vertical adaptor
238014
Concentric vertical flues – water heaters
Concentric vertical flue
arrangement
Key & OD dimension
Concentric vertical flue kit
Flue extension
Multifit sales
code
238015
1000m
B4286
90 bend kit
31/19034
135 bend kit
31/19035
Flat roof flashing kit
31/19040
Pitched roof flashing kit
31/19041
Please refer to page 22 for flue positioning guide.
21
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– ECO ELITE FLUE OPTIONS
Horizontal concentric flues
G
– 60/100mm
Flue system A – Maximum permissible equivalent flue length
= 10m. Any additional ‘in line’ bends in the flue system
must be taken into consideration. The equivalent lengths for
concentric pipes are: 135° bend – 0.5m, 93° bend – 1.0m.
Item description (MULTIFIT)
flue system A
Specification
Key & OD
dimensions
Multifit sales
code
Standard horizontal flue
685mm
60/100
5118489
Flue extension
1000mm
100mm
5111074
Flue bend
93˚
100mm
5111075
Item description (MULTIFIT)
flue system G
inc elbow
Flue bend (pair)
135˚
100mm
5111085
Flue bend
135˚
100mm
5111076
Pipe support
Painted white
100mm
5111080
Flue through wall liner
100mm
5111067
Flue terminal deflector
60mm
5111068
100mm
5111065
Flue vertical adaptor (boiler)
Main HE only
Key & OD
dimensions
Multifit sales
code
Vertical flue terminal
125mm
5111078
Vertical flue adaptor
125mm
5111070
Roof cover plate
125mm
246143
93˚
125mm
5118588
Flue bend pair
135˚
125mm
5118597
Flue extension
1000mm
125mm
5118584
Pipe support
Painted white
125mm
5118610
Pitched roof flashing
25/50˚
125mm
5122151
125mm
246144
Flat roof flashing
Twin pipe flues – 80/80mm
Maximum permissible equivalent flue length = 20m. Any
additional ‘in line’ bends in the flue system must be taken into
consideration. The equivalent lengths for concentric pipes are:
135° bend – 0.25m, 90° bend – 0.5m.
Vertical concentric flues – 60/100mm
Item description (MULTIFIT)
flue system N
Flue system A – Maximum permissible equivalent flue length
= 10m. Any additional ‘in line’ bends in the flue system
must be taken into consideration. The equivalent lengths for
concentric pipes are: 135° bend – 0.5m, 93° bend – 1.0m.
Specification
Vertical flue terminal
Key & OD
dimensions
Multifit sales
code
Specification
Flue bend
The 3° fall back on concentric flues can be reduced to 1.5° providing the flue
system is adequately clamped in accordance with the installation instructions.
Item description (MULTIFIT)
flue system A
Vertical concentric flues – 80/125mm
Flue system G – Maximum permissible equivalent length =
20m. Any additional ‘in line’ bends in the flue system must
be taken into consideration. The equivalent lengths for
concentric pipes are: 135° bend – 0.5m, 93° bend – 1.0m.
Specification
Key & OD
dimensions
Multifit sales
code
Twin pipe flue adaptor (boiler)
80/80mm
720089801
Twin to concentric adaptor
80/80 – 80/125
80/125mm
5111084
Twin pipe flue bend (pair)
90˚
80mm
5111072
Twin pipe flue bend (2 pair)
135˚
80mm
5111086
125mm
5118576
Roof cover plate
4”
125mm
246143
Twin pipe extension
(pair inc brackets)
1000mm
80mm
5111087
Flue bend
93˚
100mm
5111075
Twin pipe support (pair)
Painted white
80mm
5111081
Flue bend
135˚
100mm
5111076
Vertical flue terminal
125mm
5111078
Flue bend pair
135˚
100mm
5111085
Roof cover plate
100mm
246143
Flue extension
1000mm
100mm
5111074
Pitched roof flashing
125mm
5122151
Pipe support
Painted white
100mm
5111080
Flat roof flashing
125mm
246144
Pitched roof flashing
25/50˚
125mm
5122151
Flat roof flashing
Flue vertical adaptor (boiler)
Main HE only
125mm
246144
100mm
5111065
25/50˚
Plume displacement kits – 60/100mm
G
Horizontal concentric flues – 80/125mm
Flue system G – Maximum permissible equivalent length
= 20m. Any additional ‘in line’ bends in the flue system
must be taken into consideration. The equivalent lengths for
concentric pipes are: 135° bend – 0.5m, 93° bend – 1.0m.
Item description (MULTIFIT)
flue system G
Specification
Key & OD
dimensions
Multifit sales
code
Standard horizontal flue
inc elbow
685mm
80/125
5118580
Flue extension
1000mm
125mm
5118584
Flue bend
93˚
125mm
5118588
Flue bend (pair)
135˚
125mm
5118597
Pipe support
Painted white
125mm
5118610
Item Description (MULTIFIT)
flue system K
Specification
Key & OD
dimensions
Multifit sales
code
100mm
5118638
1000mm
60mm
5121368
Plume displacement kit bend
93˚
60mm
5121369
Plume displacement kit
bend (pair)
135˚
60mm
5121370
Plume displacement kit inc
elbow + clips
Plume displacement kit
extension + clips
The 3° fall back on concentric flues can be reduced to 1.5° providing the flue
system is adequately clamped in accordance with the installation instructions.
Flue options
Concentric flue
The maximum equivalent lengths are 4m (horizontal and vertical).
These lengths exclude the standard elbow and flue/terminal assembly
(horizontal) and terminal assembly (vertical).
Twin flue
The total maximum equivalent flue length is 75m.
Note: Air and flue tubes parallel.
Any additional ‘in line’ bends in the flue system must be taken into consideration.
Their equivalent lengths are:
Concentric pipes:
Twin flue pipe:
135° bend
0.5m
93° bend
1.0m
135° bend (air duct)
1.3m
135° bend (flue duct)
2.6m
90° bend (air duct)
4.8m
90° bend (flue duct)
9.6m
Detailed examples of equivalent flue length calculations are given in the Installation
Guidance Notes for each flue system type (Documents 243501 and 243502 for
concentric and twin pipe respectively).
22
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– HE A FLUE OPTIONS
Horizontal concentric flues
Twin pipe flues – 80/80mm
– 70/110mm
Item description (MULTIFIT)
flue system B
Specification
Key & OD
dimensions
Multifit sales
code
Standard horizontal flue inc
elbow
850mm
110mm
236921
Item description (MULTIFIT)
flue system P
Specification
Horizontal flue terminal
850mm
Key & OD
dimensions
Vertical roof terminal
Horizontal flue/wall terminal
850mm
110mm
243013BAX
Flue extension
1000mm
110mm
241695
Flue extension
500mm
110mm
241694
Flue extension
250mm
110mm
241692
Multifit sales
code
110mm
243013BAX
70/110mm
242802
Twin pipe flue extension
1000mm
80mm
246137
Twin pipe flue extension
500mm
80mm
246136
Twin pipe flue extension
250mm
80mm
246135
Twin pipe flue bend (2 pair)
135˚
80mm
5121561
Flue bend
90˚
110mm
241687
Flue bend (pair)
135˚
110mm
241689
Twin pipe flue bend (pair)
90˚
80mm
5121560
70mm
248167
Twin pipe support (pair)
Painted white
80mm
5111081
110mm
5106888
110mm
243014BAX
Flue terminal deflector
Vertical flue adaptor (boiler)
Pipe support
Painted white
Vertical concentric flues
– 70/110mm
Item description (MULTIFIT)
flue system B
Specification
Vertical roof terminal
Vertical flue adaptor (boiler)
Key & OD
dimensions
Multifit sales
code
70/110mm
242802
110mm
5106888
Flue extension
1000mm
110mm
241695
Flue extension
500mm
110mm
241694
Flue extension
250mm
110mm
241692
Flue bend
90˚
110mm
241687
Flue bend (pair)
135˚
110mm
241689
Painted white
110mm
243014BAX
125mm
243016BAX
125mm
243015
Roof cover plate
Pipe support
Pitched roof flashing
25/50˚
Painted white
110mm
243014BAX
25/50˚
125mm
243015
Flat roof flashing
125mm
243016BAX
Twin pipe flue adaptor set
80/80mm
242757
Flue terminal deflector
248167
Roof cover plate
243131
Plume displacement kits
– 70/110mm to 70mm PDK
243131
Flat roof flashing
Pipe support
Pitched roof flashing
Item description (MULTIFIT)
flue system L
Specification
Key & OD
dimensions
Multifit sales
code
Plume displacement kit inc
elbow & clips
All HE Plus
110mm
5121371
Plume displacement kit
extension inc clip
1000mm
70mm
5121372
Plume displacement kit bend
93˚
70mm
5121373
Plume displacement kit bend
(pair)
135˚
70mm
5121374
Flue options
Maximum permissible equivalent flue lengths are:
Units
Main Combi
25 Eco Elite
Main Combi
30 Eco Elite
Main System
24 Eco Elite
Main System
28 Eco Elite
Concentric horizontal (60/100)
m
10
10
10
10
Concentric vertical (60/100)
m
10
10
10
10
Concentric horizontal (80/125)
m
20
20
20
20
Concentric vertical (80/125)
m
20
20
20
20
Twin pipe vertical (80/80)
m
20
20
20
20
Any additional “in line” bends in the flue system must be taken into consideration. Their equivalent lengths are:
Concentric pipes
135° bend
m
0.5
0.5
0.5
0.5
93° bend
m
1
1
1
1
135° bend
m
0.25
0.25
0.25
0.25
90° bend
m
0.5
0.5
0.5
0.5
Twin flue pipe
The elbow supplied with the standard horizontal flue is not included in any equivalent length calculations.
23
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FLUE POSITIONING GUIDE
Terminal position
with minimum distance (mm)
A* Directly below an opening, air brick, opening window etc.
B* Above an opening, air brick, opening window etc.
C* Horizontally to an opening, air brick, opening window etc. 300
300
300
D
E
F
G
H
Below gutters, soil pipes or drain pipes.
Below eaves.
Below balconies or carport roof.
From a vertical drain pipe or soil pipe.
From an internal (i) or external (ii) corner.
150
200
200
150
300
I
J
K
L
M
N
R
S
Above ground, roof or balcony level.
From a surface or boundary line facing a terminal.
From a terminal facing a terminal (horizontal flue).
From a terminal facing a terminal (vertical flue).
From an opening in carport (e.g. door, window) into the dwelling.
Vertically from a terminal on the same wall.
Horizontally from a terminal on the same wall.
From adjacent wall to flue (vertical only).
From an adjacent opening window (vertical only).
300
600
1200
600
1200
1500
300
300
1000
Property Boundary
NOTE: The distance from a fanned draught
appliance terminal installed parallel to a
boundary may not be less than 300mm in
accordance with the diagram above, unless
the flue deflector kit is used. This can then
be reduced to a min of 25mm.
*In addition, the terminal should be no nearer than 150mm to an opening in the building
fabric formed for the purpose of accommodating a built-in element such as a window
frame. See BS 5440 Pt1.
Reduced clearances: This range of boilers has been tested and approved for use with certain clearances less than those shown.
= Horizontal flues in positions D, E, F, G & H(i) may be reduced to 25mm. H(ii) may only be reduced to 115mm.
Only one of these reductions may be used on a single installation.
24
91529 A4 Main Range Brochure.indd 24
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CONTROLS
THE PERFECT ACCESSORIES:
• Maximise your customers’ energy saving
• Easy to commission
• Increase your revenue stream
Wireless electronic
digital room thermostat
• Portable room thermostat for ease of use and greater comfort
• 7 day programme time and temperature control
• Easy to read backlit LCD display
• Easy to use Digital & Dial control
• Perfect for fully personalised comfort and energy saving
720030701
Integral electronic timer
• 7 day programme time and temperature control
• Easy to read backlit LCD display
• Multiple on/off switching operations
• Advanced switch programme
247207
Integral electro mechanical time clock
• Electro-mechanical 24 hour timer
• Selection of on/off control
• Stappets set around an analogue clock for the utmost simplicity
247206
Wireless (RF) electro mechanical room thermostat
• Wireless programmable room thermostat
• Minimises problems of compliance with building regulations
Part L (Energy Conservation) & Part P (Electrical Safety)
• As simple to fit as it is to use.
5117393
25
91529 A4 Main Range Brochure.indd 25
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THE LOYALT Y
SCHEME
FROM MAIN
Welcome to the loyalty scheme from Main. It’s called works and it’s simple, easy to join
and it gives you reward points for every single Main boiler or cylinder you purchase.
You even earn reward points for building relationships with Main and other installers!
THE BENEFITS TO YOU.
Great rewards from the
personal shopping catalogue
Use Business Points to gain rewards for you or your business.
Perfect if you need some new workwear – or it’s the wife’s birthday!
Free Gas Safe Notification
Every boiler registration is automatically linked to the Gas Safe
Register – saving you time and money.
Next day call out
Get total peace of mind with a next day call out service from
our award-winning heateam service division.
Annual service reminder
No need to remind customers when their annual service
is due – we’ll prompt them to call YOU.*
Be on ‘Find an installer’
Find new customers and boost your business with a listing
on our website.
Plus much much more!
Terms and conditions apply, visit works2gether.co.uk for full details.
Available for registered boilers only. See website for details.
*
Sign up today!
Visit works2gether.co.uk to start
earning rewards or speak to your
local Main Area Sales Manager
for further details.
26
91529 A4 Main Range Brochure.indd 26
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THE
REASSURING
BACK-UP
WARRANTY
0844 871 1570
www.heateam.co.uk
With call service support available 7 days a
week, 363 days a year, heateam offers quick
and effective servicing and maintenance support
through over 270 highly trained heating experts
across the country.
The Main trade technical helpline offers a range
of free services to Main installers:
• In-warranty support
• Help with installation problems
• Boiler selection advice
• Fault-finding assistance
• Flue queries
heateam was recognised as one of the
Top 50 Call Centres for Customer Service
following the UK’s biggest ever call centre
benchmarking exercise.
Main: Giving you extra
Boilers
All Main boilers come with a 2 year parts and labour warranty as standard.
Cylinders
On site service support including parts and labour for 12 months from date
of installation. After an initial 12 months, a parts only guarantee will apply
for a further 24 years on the stainless steel shell.
Subject to registration and the replacement being carried out by one of
our heateam engineers, for which reasonable labour charges will apply.
EXPERT
TRAINING
The study was conducted by independent
Market Research Company GfK Mystery
Shopping and represents the largest ever
mystery shopping exercise in the call centre
industry. Over 18,500 mystery shopper enquiries
were made to call centres participating in
the Top 50 Call Centre for Customer Service
Programme. Calls were scored according to
five customer service categories: timeliness,
ease of use, reliability, knowledgeable staff and
personalised service.
As well as superb support and technical advice, Main gives you
access to the very latest training on all our products. The courses
are run by qualified instructors and cover everything from installation
and commissioning to servicing and diagnostics – as well as current
legislation, building regulations, energy efficiency, electronics, combi
boilers, system design and condensing theory.
heateam has been given this award for the last
three years showing on-going commitment to
providing top class service to all its customers.
Training is available at any of our dedicated centres across
the country:
In short, you’ll learn everything you need to install every product in
the Main range successfully and profitably.
• Cardiff • Coalville • Dartford • Eastleigh • Glasgow • Leeds
• Liskeard • Peterlee • Stockton-on-Tees • Warrington • Warwick
To book your place on a Main training course
call: 0845 600 7402
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 manufacturer’s instructions by competent persons and that it meets
the requirements of the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and
should be provided to the customer for future reference. Installers are required to carry out installation, commissioning and servicing work in accordance with
the Benchmark Code of Practice which is available from the Heating and Hot water Industry Council who manage and promote the Scheme.
Visit www.centralheating.co.uk for more information.
27
91529 A4 Main Range Brochure.indd 27
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Contacts
All enquiries
Tel: 0844 871 1570
Please note – calls to the service centre may be recorded or monitored.
Main
Brooks House, Coventry Road, Warwick CV34 4LL.
Website: mainheating.co.uk
twitter.com/mainheating
facebook.com/mainheating
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using vegetable based inks. Please recycle this Brochure
when you have finished with it.
PART OF BAXI
Registered Office: Baxi Heating UK Limited, Brooks House, Coventry Road, Warwick, CV34 4LL, United Kingdom.
Registered No: 03879156 VAT Reg No: 604 6658 37 Main policy is one of continual improvement and development. The right to change specification and appearance without prior notice is reserved. The reproduction of colours is as accurate
as photographic and printing processes allow. The consumer’s statutory rights are not affected. e&oe
M/Range 366902/12 04/14
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16/05/2014 14:30

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