Immergas EOLO Maior kW X Manual de usuario

EOLO Maior kW

Instantaneous wall-hung

boilers with sealed-room

EOLO Maior kW

EOLO Maior kW X

Wall-hung boilers with sealed-

room for central heating only

or with external storage tank

STEkW ed 12/06 EOLO Maior kW

Technical Documentation Technical Documentation

EOLO Maior 24-28-32 kW

Wall-hung boiler for heating and instantaneous

production of domestic hot water, with sealed

chamber and forced draught

EOLO Maior 24 kW

EOLO Maior 28 kW

EOLO Maior 32 kW

EOLO Maior kW is a wall-hung boiler room sealed fan assisted

(C type) for heating and production of domestic hot water.

is boiler can be installed also in B22 conﬁguration thanks to

a special (optional) kit.

EOLO Maior kW boilers are approved for outdoor installation

in partially protected places.

N.B.: We mean partially protected place when the appliance is not

directly exposed to weather conditions (rain, snow, hail, etc..).

ere are 3 versions in the range, with powers of 24 kW

(20,640 kcal/h), 28 kW (24,080 kcal/h) and 32 kW (27,520

kcal/h).

e regulation and the control functions are managed by an

electronic control board microprocessor with continuous 2-

sensor ﬂame modulation (d.h.w. and central heating).

anks to which the appliance can be connected to the Amico

Remote Control.

e boiler features a standard antifreeze safety device that

protects it against temperatures as low as -5°C (optional as

low as -15°C).

e hydraulic circuit features a copper water-gas

exchanger as well as a new hydraulic unit in a compound

material.

Besides the pump and 3-way electric diverter valve, that,

depending on needs, lets boiler water circulate in the central

heating system or in a stainless steel plate exchanger for the

instant production of domestic hot water, this unit also

houses the devices that control the hydraulic circuit (system

absolute pressure switch, system adjustable by-pass, etc.).

General features.

Combustion air ﬂow into the sealed chamber and ﬂue

extraction are ensured by a fan; the correct operation of which

is controlled by a diﬀerential pressure switch.

e boiler functioning parameters are set by turning the control

panel knobs.

e functioning status and possible anomalies are easily signal-

led by leds on the panel.

STEkW ed 12/06 EOLO Maior kW

Technical DocumentationTechnical Documentation

EOLO Maior 28 kW X

Wall-hung boiler sealed chamber and forced

draught for heating only, pre-arranged for the

connection to a separate storage tank

EOLO Maior 28 kW X

EOLO Maior kW X is a wall-hung boiler room sealed fan

assisted (C type) that provides space heating only, pre-arranged

for the connection to a separate storage tank of 80, 105, 120,

e 200 litres, thanks to a special (optional) kit.

is boiler can be installed also in B22 conﬁguration thanks to

a special (optional) kit.

EOLO Maior kW X boilers are approved for outdoor instal-

lation in partially protected places.

N.B.: We mean partially protected place when the appliance is not

directly exposed to weather conditions (rain, snow, hail, etc..).

e boiler is available with a power of 28 kW (24,080 kcal/

h).

e regulation and the control functions are managed by an

electronic control board microprocessor drive.

anks to which the appliance can be connected to the Amico

Remote Control.

e boiler features a standard antifreeze safety device that

protects it against temperatures as low as -5°C (optional as

low as -15°C).

e hydraulic circuit features a copper water-gas exchanger

as well as a new hydraulic unit in a compound material.

Besides the pump, this unit also houses the devices that con-

trol the hydraulic circuit (system absolute pressure switch, system

adjustable by-pass, etc.).

Combustion air ﬂow into the sealed chamber and ﬂue

extraction are ensured by a fan; the correct operation of which

is controlled by a diﬀerential pressure switch.

General features.

e boiler functioning parameters are set by turning the control

panel knobs.

e functioning status and possible anomalies are easily signal-

led by leds on the panel.

STEkW ed 12/06 EOLO Maior kW

Technical Documentation Technical Documentation

EOLO Maior kW main dimensions and connections.

Legend:

G - Gas supply

AC - D.h.w. outlet

AF - D.h.w. (cold) inlet

R - System return

M - System delivery

V - Electrical connection

EOLO Maior kW control panel.

Legend:

1 - Stand by LED

2 - Burner on LED

3 - D.h.w. on LED

4 - Central heating on LED

5 - Temperature LED – Ignition stop malfunction

6 - Temperature LED – Flue pressure switch malfunction

7 - Temperature LED – System pressure insuﬃcient malfunction

8 - Temperature LED – Circulation insuﬃcient malfunction

9 - Temperature LED – Delivery probe faulty

10 - Temperature LED – Domestic hot water probe faulty

11 - Temperature LED – Overheating lock

12 - Stand-by-D.h.w./Remote Control (CAR)-D.h.w. and Heating-Reset-

selector switch

13 - D.h.w. temperature knob

14 - Central heating temperature knob

15 - Boiler manometer

Height (mm) Width (mm) Depth (mm)

830 440 350

CONNECTIONS

GAS DOMESTIC

HOT WATER SYSTEM

G AC AF R M

1/2” 1/2” 1/2” 3/4” 3/4”

STEkW ed 12/06 EOLO Maior kW

Technical DocumentationTechnical Documentation

EOLO Maior kW X Main dimensions and connections.

EOLO Maior kW X Control panel.

Legend:

1 - Stand by LED

2 - Burner on LED

3 - D.h.w. on LED

4 - Central heating on LED

5 - Temperature LED – Ignition stop malfunction

6 - Temperature LED – Flue pressure switch malfunction

7 - Temperature LED – System pressure insuﬃcient malfunction

8 - Temperature LED – Circulation insuﬃcient malfunction

9 - Temperature LED – Delivery probe faulty

10 - Temperature LED – Domestic hot water probe faulty (optional)

11 - Temperature LED – Overheating lock

12 - Stand-by-D.h.w./Remote Control (CAR)-D.h.w. and Heating-Reset-

selector switch

13 - D.h.w. temperature knob (optional)

14 - Central heating temperature knob

15 - Boiler manometer

Legend:

G - Gas supply

RR - System ﬁlling

R - System return

M - System delivery

V - Electrical connection

Height (mm) Width (mm) Depth (mm)

830 440 350

CONNECTIONS

GAS WATER SYSTEM

G RR R M

1/2” 1/2” 3/4” 3/4”

STEkW ed 12/06 EOLO Maior kW

Technical Documentation Technical Documentation

EOLO Maior kW main components.

Legend:

1 - Gas valve

2 - D.H.W. NTC probe

3 - D.H.W. ﬂow switch

4 - D.H.W. heat exchanger

5 - Burner

6 - Combustion chamber

7 - Sealed chamber

8 - Fan

9 - Intakes (air A) - (ﬂues F)

10 - Positive signal pressure point

11 - Negative signal pressure point

12 - Flue pressure switch

13 - Delivery NTC probe

14 - Overheating Safety thermostat

15 - Draught diverter

16 - Primary exchanger

17 - System expansion vessel

18 - Ignition and detection electrodes

19 - Automatic air vent

20 - Circulator

21 - System pressure switch

22 - 3-bar safety valve

23 - ree-way valve (motorized)

24 - System draining cock

25 - System ﬁlling valve

STEkW ed 12/06 EOLO Maior kW

Technical DocumentationTechnical Documentation

EOLO Maior kW X main components.

Legend:

1 - Gas valve

2 - Burner

3 - Combustion chamber

4 - Sealed chamber

5 - Fan

6 - Intakes (air A) - (ﬂues F)

7 - Positive signal pressure point

8 - Negative signal pressure point

9 - Flue pressure switch

10 - Delivery NTC probe

11 - Overheating Safety thermostat

12 - Draught diverter

13 - Primary exchanger

14 - Ignition and detection electrodes

15 - System expansion vessel

16 - Automatic air vent

17 - Circulator

18 - System pressure switch

19 - 3-bar safety valve

20 - ree-way valve plug

21 - System draining cock

22 - System ﬁlling valve

STEkW ed 12/06 EOLO Maior kW

Technical Documentation Technical Documentation

Hot water for central heating and domestic use is produced

by a primary and secondary (d.h.w.) circuit that are engaged

according to requirements.

EOLO Maior kW hydraulic diagram.

Legend:

1 - D.H.W. ﬂow switch

2 - D.H.W. NTC probe

3 - D.H.W. heat exchanger

4 - Gas valve

5 - Burner

6 - Primary exchanger

7 - Draught diverter

8 - Fan

9 - Sealed chamber

10 - Flue pressure switch

11 - Delivery NTC probe

12 - Overheating Safety thermostat

13 - System expansion vessel

14 - Automatic air vent

15 - Circulator

16 - ree-way valve (motorized)

17 - System draining cock

18 - System ﬁlling valve

19 - Adjustable by-pass

20 - System pressure switch

21 - 3-bar safety valve

22 - One-way valve

23 - Flow limiter

G - Gas supply

AC - D.h.w. outlet

AF - D.h.w. (cold) inlet

R - System return

M - System delivery

STEkW ed 12/06 EOLO Maior kW

Technical DocumentationTechnical Documentation

EOLO Maior kW X hydraulic diagram.

Legend:

1 - Gas valve

2 - Burner

3 - Primary exchanger

4 - Draught diverter

5 - Fan

6 - Sealed chamber

7 - Flue pressure switch

8 - Delivery NTC probe

9 - Overheating Safety thermostat

10 - System expansion vessel

11 - Automatic air vent

12 - Circulator

13 - System draining cock

14 - ree-way valve (without motor)

15 - Adjustable by-pass

16 - System pressure switch

17 - 3-bar safety valve

18 - System ﬁlling valve

G - Gas supply

RR - System ﬁlling

R - System return

M - System delivery

e primary circuit with relevant control and safety devices

is triggered each time there is a request for central heating or

antifreeze.

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