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www.ferroli.co.uk
Energy Top W
(17kW-123kW)
Econcept 51A
(11kW-53kW)
Light Commercial/Large Domestic
range of wall mounted condensing boilers
DESIGNED FOR MAXIMUM EFFICIENCY ENGINEERED FOR COMPLETE RELIABILITY
THE HEAT IS ON
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Econcept 51A
(11kW-53kW)
Light Commercial/Large Domestic
range of wall mounted condensing boilers
2
*
Year
Warranty
DATA UNIT VALUE
Heat Input (max) kW 49.8
Heat Input (min) kW 11.2
Heat Output (80/60ºC) kW 48.8
Heat Output (50/30ºC) kW 53.0
Efficiency (80/60ºC) % 98.0
Efficiency (50/30ºC) % 107.5
Efficiency 30% % 109.0
Gas Inlet Pressure G20 mbar 20.0
Gas Flow Rate G20 m3/hr 5.3
Gas Inlet Pressure G31 mbar 37.0
Gas Mass Flow Rate G31 kg/h 3.9
Max Working Pressure bar 6.0
Min Working Pressure bar 0.8
Voltage V/Hz 230/50
Power W 190
Max Flue Gas Temperature ºC 66.0
Max Flue Gas Mass kg/h 83.8
Max Flue Pressure Pa 150.0
Weight Full kg 67
NOx Emissions mg/kWh 35
Technical Data
The Ferroli Econcept 51A has been designed for high efficiencies
and very low emissions. The boiler has achieved 4 star efficiency
(EU Directive 92/42 EEC) and Class 5 for NOx
emissions (EU Directive EN 297/A5).
The Econcept 51A is equipped with Ferroli’s
patented premix ceramic reverse micro flame
burner. This burner is the key to the low
emissions and is designed to eliminate the effects of thermal
expansion of the burners.
The high efficiency heat exchanger is manufactured with 16mm
water ways to eliminate debris-related
corrosion and hot spots. The material
chosen for construction is aluminium silica
alloy which has been specifically formulated
for condensing boiler applications.
A key feature of the Econcept 51A is the inbuilt boiler pump and
the provision for an optional inbuilt DHW pump. The DHW control
is performed by the on-board controller (see page 4).
Key
1 CH flow 3/4”
3 Gas inlet 3/4”
5 CH return 3/4”
* Only if commissioned by Ferroli
Cascade Options
The Ferroli Econcept 51A is suitable for cascade
applications. A large range of accessories are available.
Please contact Ferroli for further assistance.
Econcept 51A Design & Installation Manual
Page 3
The ENERGY TOP W series boilers are wall-hung heat generators for
inside or outside installation, central heating only, featuring a premix
burner, condensing operation with very high efficiency and very low
polluting emissions. They consequently ensure high energy savings
and are environmentally-friendly (4 star energy rating according to
Directive 92/42 EEC, Class 5 emissions according to EN 297/A5).
Wall-hung structure with removable jacket split in 3 sections, for easy
access to the inner components. Possible installation as standard
outdoor in partially protected places, with temperatures untill to
-5°C, without using the additional frost protection kit. The cascaded
connection of multiple generators can be carried out using dedicated
cascade flues and hydraulic collective manifold.
The appliances are factory configured for operation on natural gas and
can be converted to LPG using the appropriate conversion kit available
upon demand.
> THE RANGE
ENERGY TOP W 80
Wall hung model with single heating unit and thermal input from
17 to 75 kW
ENERGY TOP W 125
Wall hung model with double heating unit and total thermal input
from 25 to 116 kW
> > > Heating division
The ENERGY TOP W series boilers are wall-hung heat generators for
inside or outside installation, central heating only, featuring a premix
burner, condensing operation with very high efficiency and very low
polluting emissions. They consequently ensure high energy savings
and are environmentally-friendly (4 star energy rating according to
Directive 92/42 EEC, Class 5 emissions according to EN 297/A5).
Wall-hung structure with removable jacket split in 3 sections, for easy
access to the inner components. Possible installation as standard
outdoor in partially protected places, with temperatures untill to
-5°C, without using the additional frost protection kit. The cascaded
connection of multiple generators can be carried out using dedicated
cascade flues and hydraulic collective manifold.
The appliances are factory configured for operation on natural gas and
can be converted to LPG using the appropriate conversion kit available
upon demand.
> THE RANGE
ENERGY TOP W 80
Wall hung model with single heating unit and thermal input from
17 to 75 kW
ENERGY TOP W 125
Wall hung model with double heating unit and total thermal input
from 25 to 116 kW
ENERGY TOP W
> > > Heating division
> SPECIFICATIONS
RANGE – TECHNICAL DRAWINGS
Energy Top W
(17kW-123kW)
Light Commercial/Large Domestic
range of wall mounted condensing boilers
The Ferroli Energy Top has been designed for high efficiencies
and very low emissions. The boiler has achieved 4 star efficiency
(EU Directive 92/42 EEC) and Class 5 for NOx emissions (EU
Directive EN 297/A5).
The Energy Top range is equipped with an
air/gas premix metal fibre burner complete
with variable speed fan. This burner is the
key to the low emissions and is designed to
eliminate the effects of thermal expansion.
The high efficiency heat exchanger is
manufactured with 31mm water ways to eliminate debris-related
corrosion and hot spots. The material chosen
for construction is aluminium silica alloy
which has been specifically formulated for
condensing boiler applications. The design
of the heat exchanger allows for a maximum
temperature difference across the flow and
return of 40ºC.
The range consists of two models, Energy
Top W80 and Energy Top W125.
DATA UNIT VALUE
W80 W125
Heat Input (max) kW 75.0 116.0
Heat Input (min) kW 17.0 25.0
Heat Output (80/60ºC) kW 73.5 113.7
Heat Output (50/30ºC) kW 79.5 123.0
Efficiency (80/60ºC) % 98 98
Efficiency (50/30ºC) % 106 106
Efficiency 30% % 109 109
Gas Inlet Pressure G20 mbar 20.0 20.0
Gas Flow Rate G20 m3/hr 7.94 12.4
Gas Inlet Pressure G31 mbar 37.0 37.0
Gas Mass Flow Rate G31 kg/h 5.9 9.1
Max Working Pressure bar 6.0 6.0
Min Working Pressure bar 0.8 0.8
Voltage V/Hz 230/50 230/50
Power W 95 200
Max Flue Gas Temperature ºC 65.0 67.0
Max Flue Gas Mass kg/h 126.2 195.2
Max Flue Pressure Pa 250 350
Weight Full kg 51 58
NOx Emissions mg/kWh 29 29
Technical Data
2
*
Year
Warranty
Key
1 CH flow 1 1/2” F
3 Gas inlet 1” M
5 CH return 1 1/2” F
> > > Heating division
> > > Heating division
ontal
ENERGY TOP W A mm
80 65
125 63
Cascade Options
The Ferroli Energy Top is suitable for cascade applications.
A large range of accessories are available. Please contact
Ferroli for further assistance.
* Only if commissioned by Ferroli
Energy Top W Design & Installation Manual
Page 4
www.ferroli.co.uk
Ferroli Limited Lichfield Road Branston Industrial Estate Burton-upon-Trent Staffordshire DE14 3HD United Kingdom
T 0843 479 4790 F 0843 479 0081 E sales@ferroli.co.uk
Calls will be charged at national rate from a BT Landline
Light Commercial/Large Domestic
range of wall mounted condensing boilers
Controls
• Cascade Control
• Master Slave Control
• Ability to control 2 heating circuits
• 4 zones can be controlled with the
optional FZ4 controller
• Direct Weather Compensation
• Fault History
• Volt Free Contacts (burner on and fault)
• Volt Free Thermostat / Programmer
• 0—10 Vdc
• OpenTherm® Controller
Flue Options
Econcept and Energy Top Flue and Accessories
The controls are identical for both the Econcept and Energy Top models. As standard, Ferroli’s choice of controls
are manufactured by Honeywell. Simplicity is the key to the philosophy of the Econcept and Energy Top controls.
The easy to use controls feature: Boiler enable is by a choice of:
E51A W80 W125 Air In Flue Out Flue Out
Vertical Horizontal
Product Code 80mm Single Flue/Combustion Air Losses m
eq
1KWMR54A Two Pipe Adaptor Kit 80mm ESSENTIAL ITEM ✓ ✓ ✓ 0.3 0.3 0.3
ZU00008114 250mm Extension PP Translucent 80mm ✓ ✓ ✓ 0.25 0.4 0.5
ZU00008115 500mm Extension PP Translucent 80mm ✓ ✓ ✓ 0.5 0.8 1
222952 1000mm Extension PP Translucent 80mm ✓ ✓ ✓ 1 1.6 2
222953 2000mm Extension PP Translucent 80mm ✓ ✓ ✓ 2 3.2 4
51608094 3000mm Extension PP Translucent 80mm ✓ ✓ ✓ 3 4.8 6
222954 45° Elbow PPTL 80mm ✓ ✓ ✓ 1.2 1.8 1.8
222955 90° Elbow PPTL 80mm ✓ ✓ ✓ 1.5 2 2
ZU00008127 1m Terminal PP Black 80mm (External UV) ✓ ✓ ✓ 1 1.6 2
1KWMA85A Push-In Horizontal Terminal 80mm (Air) ✓ ✓ ✓ 2 - 1KWMA86A Push-In Horizontal Terminal 80mm (Flue Gas) ✓ ✓ ✓ - - 5
1KWMR47A Roof Terminal Cowl 80mm ✓ ✓ ✓ - 3 010027X0 Concentric Roof Terminal 80mm ✓ ✓ - 12 1KWMR48A Flue Support Bracket 80mm ✓ ✓ ✓ - - Maximum Length in 80mm Single Flue / Combustion Air, m
eq
20 20 10
Product Code 80 / 125 Concentric Flue Losses m
eq
041007X0 Concentric Adaptor 125mm (W80 and W125) ✓ ✓ 0 0 0
1KWMA74Y Concentric Adaptor 125mm (Econcept 51A) ✓ 0 - 1KWMR43A 500mm Concentric Extension 125mm ✓ ✓ ✓ 0.5 0.5 0.5
1KWMA59W 1000mm Concentric Extension 125mm ✓ ✓ ✓ 1 1 1
1KWMA58W 1000mm Concentric Horizontal Terminal 125mm ✓ ✓ ✓ 1 1 1
1KWMA72W Concentric 45° Bend 125mm ✓ ✓ ✓ 0.25 0.25 0.25
1KWMA73W Concentric 90° Bend 125mm ✓ ✓ ✓ 0.5 0.5 0.5
010026X0 Concentric Roof Terminal 125mm ✓ ✓ ✓ - 1.2 1KWMA81U Slate for Flat Roof Set ✓ ✓ ✓ - - 1KWMA82U Slate for Pitched Roof Set ✓ ✓ ✓ - - 1KWMR49A Flue Support Bracket 125mm ✓ ✓ ✓ - - Maximum Length in 80/125mm Concentric, m
eq
12 4 2
Wireless RF Controller
Product Code: 013101XA
Econcept 51A & Energy Top W Flue Calculator
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