eolo_maior_kw_0093_gb

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Wall-mounted instant boilers

EOLO Maior kW ExportEOLO Maior kW VIP ExportEOLO Maior kW X Export

EOLO Maior kW is the wall-mounted boiler with sealed chamber and forced draught that's approved for operation both indoors and outdoors in partially protected places, so as to gain space inside buildings. It features an elegant Schumann design with covered console. This, along with a compact size, makes the boiler well able to blend in with other wall units and furnishings while meeting all types of planning requi-rement since it is available with 24 kW, 28 kW and 32 kW power ratings. The EOLO Maior kW boiler features the new high-performance hydraulic unit, and can also cope with small service requirements or low domestic water inlet pressure va-lues. It is also simple to use thanks to user-friendly electronics, while the controls and signals are easy to interpret. The boiler can be used in conjunction with the exclusive Amico Remote Control and external probe (both optional) which allow it to be controlled, monitored and programmed at a distance in an extremely simple way, thus optimizing its operation through climatic thermoregulation.

Wall-mounted boiler for heating and instantenaous production of domestic hot water, with sealed chamber, forced draught and 24 kW (20,640 kcal/h), 28 kW (24,080 kcal/h) or 32 kW (27,520 kcal/h) nominal heat output, high efficiency and forced circulation.The boiler classification changes when the type of installation is varied, regardless of whether the boiler is installed indoors or outdoors.Appliance type B22 - if installed using the relative kit (optional).Appliance type C12/ C32/ C42/ C52/ C82 - if installed using the Ø 80/80 separator kit or concentric vertical or horizontal kits.Both models consist of:• main multigas burner with 11 ramps (mod. 24 kW), 14 ramps

(mod. 28 kW) or 15 ramps (mod. 32 kW) and aspirated air. Made of stainless steel and complete with ignition electrodes and detection electrode;

• electric gas valve with double shutter and built-in modulating coil;• high-efficiency gas/water primary exchanger made of copper and

consisting of four pipes connected in series in lamellar coils protected by non-corroding alloy;

• combustion chamber in steel plate internally insulated with ceramic panels;

• sealed chamber in steel plate with fixed speed fumes exhaust fan, differential pressure switch to ensure the fan and fumes exhaust/air intake circuit operate correctly;

• secondary water/water exchanger for producing domestic hot water, made of stainless steel with 16 plates (mod. 24 kW), 20 plate (mod. 28 kW) or 22 plates (mod. 32 kW);

• hydraulic unit consisting of a 3-way electric valve, adjustable speed circulator with built-in air separator, adjustable by-pass, absolute pressure switch for the primary circuit, system draining fitting and a cock for filling the system;

• domestic water flow switch to detect when domestic water is used;• 10 litre diaphragm expansion tank (real capacity 7.4) with 1.0 bar

preload, 3-bar system safety valve and pressure gauge;• overtemperature safety thermostat;• heating temperature adjuster knob, domestic hot water temperature

adjuster knob, general selector with function (stand-by, domestic hot water, heating, Reset);

• boiler operating parameters entered by means of knobs with Leds to display the status and operating mode;

• check-control system with Leds to display the operating status and faults;

• console with retracting controls complete with electronic board with microprocessor, infinite flame modulation with 2 sensors (domestic hot water and heating), P.I.D. monitoring, modulation range:

- EOLO Maior 24 kW from 9.3 to 24 kW (from 8,000 to 20,640 kcal/h);



• electronic ignition with ionizing monitoring function;• antifreeze protection system (down to -5 °C), circulator anti-blocking

function and three-way valve, system post-circulation function, post-ventilation function, chimney-sweep function, pre-engineered for connection to the Immergas Amico Remote Control, the Timer-thermostat, the Ambient thermostat, the Timer clock, the External probe and the Electronic control unit for zoned systems;

• IP X4D electrical insulation degree.• (optional) connecting group with depth adjustable fittings, gas cut

off cock and filling valve.Supplied complete with intakes for combustion analysis, bottom protection grille.II2H3+ category appliance running on Natural Gas or LPG.. With CE mark.

The following models are available:• EOLO Maior 24 kW Export code 3.019355• EOLO Maior 28 kW Export code 3.019356• EOLO Maior 32 kW Export code 3.019357

1 SPECFICATIONS OF EOLO Maior kW

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1.1 SPECIFICATIONS OF EOLO Maior kW VIP

EOLO Maior kW VIP is the wall-mounted boiler with sealed chamber and forced draught that's approved for operation both indoors and outdoors in partially protected places, so as to gain space inside buildings. The EOLO Maior kW VIP boiler features the "Aqua Celeris” system which drastically reduces the time users need to wait for domestic hot water to be delivered. "Aqua Celeris” is a new system patented by Immergas. It consists of a small storage tank installed in the primary circuit and maintained at the right temperature by a small modulating electric heating element that immediately brings the domestic water to the right temperature as soon as the tap is turned on. The EOLO Maior kW VIP boiler is simple to use thanks to user-friendly electronics, while the controls and signals are easy to interpret. The boiler can be used in conjunction with the exclusive Amico Remote Con-trol and external probe (both optional) which allow it to be controlled, monitored and programmed at a distance in an extremely simple way.

Wall-mounted boiler for heating and instantaneous production of domestic hot water, with sealed chamber, forced draught and 24 kW (20,640 kcal/h) or 28 kW (24,080 kcal/h) nominal heat output, high efficiency and forced circulation.The boiler classification changes when the type of installation is varied, regardless of whether the boiler is installed indoors or outdoors.Appliance type B22 - if installed using the relative kit (optional).Appliance type C12/ C32/ C42/ C52/ C82 - if installed using the Ø 80/80 separator kit or concentric vertical or horizontal kits.both models consist of:• main multigas burner with 11 ramps (mod. 24 kW) or 14 ramps

(mod. 28 kW) and aspirated air. Made of stainless steel and complete with ignition electrodes and detection electrode;

• electric gas valve with double shutter and built-in modulating coil;• high-efficiency gas/water primary exchanger made of copper and

consisting of four pipes connected in series in lamellar coils protected by non-corroding alloy;



• secondary water/water exchanger for producing domestic hot water, made of stainless steel with 16 plates (mod. 24 kW) or 20 plates (mod. 28 kW);

• patented "Aqua Celeris" comprising a small storage tank installed in the primary circuit and maintained at the right temperature by a modulating electric heating element;

• hydraulic unit consisting of a 3-way electric valve, adjustable speed circulator with built-in air separator, adjustable by-pass, absolute pressure switch for the primary circuit, system draining fitting and a cock for filling the system;

• domestic water flow switch to detect when domestic water is used;

• 8 litre diaphragm expansion tank (real capacity 6.5) with 1.0 bar

preload, 3-bar system safety valve and pressure gauge;• overtemperature safety thermostat;• heating temperature adjuster knob, domestic hot water temperature

adjuster knob, general selector with function (stand-by, domestic hot water, heating, Reset);

• boiler operating parameters entered by means of knobs with Leds to display the status and operating mode;


• console with retracting controls complete with electronic board with microprocessor, infinite flame modulation with 2 sensors (domestic hot water and heating), P.I.D. monitoring, modulation range:

- EOLO Maior 24 kW VIP from 9.3 to 24 kW (from 8,000 to 20,640 kcal/h);

- EOLO Maior 28 kW VIP from 10.5 to 28 kW (from 9,000 to 24,080 kcal/h);



• IP X4D electrical insulation degree.• (optional) connecting group with depth adjustable fittings, gas cut

off cock and filling valve.Supplied complete with intakes for combustion analysis, bottom protection grille.II2H3+ category appliance running on Natural Gas or LPG.. With CE mark.

The following models are available:• EOLO Maior 24 kW VIP export code 3.019358• EOLO Maior 28 kW VIP Export code 3.019359

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1.2 SPECIFICATIONS OF EOLO Maior kW X

EOLO Maior kW X is the wall-mounted boiler with sealed chamber and forced draught nfor heating purposes only, that's approved for both indoor and outdoor operation in partially protected places. All the boilers in the EOLO maior kW series are equipped with an antifreeze system that protects them down to a temperature of -5°C. Thanks to a special kit (optional), the boiler can be connected to a separate 80, 105, 120, or 200 litre capacity Water Heater manufactured by Immergas. This accessory ensures an abundant production of hot water and is particularly ideal for homes with several bathrooms or whenever lots of hot water is needed quickly. Optimum thermoregulation is guaranteed as the boiler can be used in conjunction with the exclusive Amico Remote Control and external probe (both optional). To complete the installation, there is a wide range of air intake kits and ones to dispose of the products of combustion, all with push-in connection mechanisms and silicone seals.

Wall-mounted boiler for room heating only, with sealed chamber, forced draught and 28 kW (24,080 kcal/h) nominal heat output, high efficiency and forced circulation. It is pre-engineered for use in conjunction with a separate 80, 105, 120 and 200 litre capacity Water Heater unit.The boiler classification changes when the type of installation is varied, regardless of whether the boiler is installed indoors or outdoors.Appliance type B22 - if installed using the relative kit (optional).Appliance type C12/ C32/ C42/ C52/ C82 - seif installed using the Ø 80/80 separator kit or concentric vertical or horizontal kits.The boiler consists of:• main multigas burner with 14 ramps and aspirated air. Made of

stainless steel and complete with ignition electrodes and detection electrode;

• electric gas valve with double shutter and built-in modulating coil;

• high-efficiency gas/water primary exchanger made of copper and consisting of four pipes connected in series in lamellar coils protected by non-corroding alloy;



• hydraulic unit consisting of a circulator with variable speed and built-in air separator, adjustable by-pass, absolute pressure switch for the primary circuit, system draining fitting and a cock for filling the system;

• 10 litre diaphragm expansion tank (real capacity 7.4) with 1.0 bar preload, 3-bar system safety valve and pressure gauge;

• overtemperature safety thermostat;

• heating temperature adjuster knob, general selector with function (stand-by, heating, Reset);

• the boiler's operating parameters are selected by means of knobs while Leds display the status and operating mode;


• console with retracting controls complete with electronic board with microprocessor, infinite flame modulation with P.I.D. monitoring, modulation range from 10.5 to 28 kW (from 9,000 to 24,080 kcal/h);



• IP X4D electrical insulation degree.• (optional) connecting group with depth adjustable fittings and

on-off cocks for gas and domestic cold water.Supplied complete with intakes for combustion analysis, bottom protection grille.II2H3+ category appliance running on Natural Gas or LPG.. With CE mark.

The following model is available:• EOLO Maior 28 kW X Export code 3.018923

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LEGEND: 1 - Gas valve 2 - D.h.w. probe 3 - D.h.w. flow switch 4 - D.h.w. heat exchanger 5 - Burner 6 - Combustion chamber 7 - Sealed chamber 8 - Fan 9 - Sample point (air A) - (flues F) 10 - Positive signal pressure point 11 - Negative signal pressure point 12 - Flue pressure switch 13 - Flow probe

14 - Safety thermostat 15 - Flue hood 16 - Primary heat exchanger 17 - System expansion vessel 18 - Ignition and detection electrodes 19 - Automatic vent valve 20 - Boiler pump 21 - System pressure switch 22 - 3-bar safety valve 23 - Three-way valve (motorized) 24 - Draining valve 25 - Filling valve

2 MAIN COMPONENTS OF Maior kW

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LEGEND: 1 - Gas valve 2 - D.h.w. probe 3 - D.h.w. flow switch 4 - D.h.w. heat exchanger 5 - Burner 6 - Combustion chamber 7 - Sealed chamber 8 - Fan 9 - Sample point (air A) - (flues F) 10 - Positive signal pressure point 11 - Negative signal pressure point 12 - Flue pressure switch 13 - Flow probe

14 - Safety thermostat 15 - Flue hood 16 - Primary heat exchanger 17 - System expansion vessel 18 - Ignition and detection electrodes 19 - Aqua celeris 20 - Automatic vent valve 21 - Boiler pump 22 - System pressure switch 23 - 3-bar safety valve 24 - Three-way valve (motorized) 25 - Draining valve 26 - Filling valve

2.1 MAIN COMPONENTS OF Maior kW VIP

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LEGEND: 1 - Gas valve 2 - Burner 3 - Combustion chamber 4 - Sealed chamber 5 - Fan 6 - Sample point (air A) - (flues F) 7 - Positive signal pressure point 8 - Negative signal pressure point 9 - Flue pressure switch 10 - Flow probe 11 - Safety thermostat

12 - Flue hood 13 - Primary heat exchanger 14 - Ignition and detection electrodes 15 - System expansion vessel 16 - Automatic vent valve 17 - Boiler pump 18 - System pressure switch 19 - 3-bar safety valve 20 - Three-way valve plug 21 - Draining valve 22 - Filling valve

2.2 MAIN COMPONENTS OF EOLO Maior kW X

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3 MAIN DIMENSIONS OF EOLO Maior kW / VIP

3.1 CONNECTIONS

A = inlet/outletB = inlet

Distance between upper casing line andØ 60/100 concentric elbow axis: 95 mm

Distance between upper casing line andØ 80/80 separator elbow axis: A=135 mm B = 115

Upper casing line

A BB

Model

EOLO Maior kWEOLO Maior kW VIP

Flow M3/4"3/4"

ReturnR3/4"3/4"

Hot outletAC1/2"1/2"

Cold inletAF1/2"1/2"

GasG1/2"1/2"

Expansion vesselLitres10 (real 7.4)8 (real 6.6)

Model

EOLO Maior kWEOLO Maior kW VIP

Height mm

830830

Width mm

440440

Depth mm

350350

intake/exhaust Ø mm

100/60100/60

Note: Coupling system (OPTIONAL)

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4 MAIN DIMENSIONS OF EOLO Maior kW X

4.1 CONNECTIONS

A = inlet/outletB = inlet

Distance between upper casing line andØ 60/100 concentric elbow axis: 95 mm

Distance between upper casing line andØ 80/80 separator elbow axis: A=135 mm B = 115

* Only if mounted Storage Tank coupling kit

Upper casing line

A BB

Model

EOLO Maior kW X

FlowM3/4"

ReturnR3/4"

* Storage tank flow MU3/4"

* Storage tank return RU3/4"

System fillingRR1/2"

GasG1/2"

Expansion vesselLitres10 (real 7.4)

Water Heater Capacity Height Width Depth

UB 80 (80 l.) 850 mm 500 mm 500 mm

UB 105 (105 l.) 1020 mm 500 mm 500 mm

UB 120 (120 l.) 850 mm 600 mm 600 mm

UB 200 (200 litri) 1250 mm 600 mm 600 mm

Note: Coupling system (OPTIONAL)

Model

EOLO Maior kW X

Height mm

830

Width mm

440

Depth mm

350

intake/exhaust Ø mm

100/60

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5 PUMP HEAD AND FLOW RATE GRAPH

“EOLO Maior kW” boilers are supplied with a built-in circu-lation pump and three-position electric speed governor. The pump is already equipped with a condenser.

The “EOLO Maior kW” boilers are equipped with an adju-stable by-pass. The by-pass is regulated in the factory for curve B. This setting can be modified by means of the screw on the by-pass unit.

A: Available head at top speed with by-pass closed (adjuster screw fully tightened).B: Available head at top speed with factory setting (screw turned 1-1/2 turns in relation to the setting with the adjuster screw

fully loosened).C: Available head at top speed with by-pass fully open (adjuster screw fully unscrewed).

GRUNDFOS UPS 15-50 AO HB

5.1 PUMP - EOLO 24 kW / 24 kW VIP


5.2 PUMP- EOLO 28 kW / 28 kW VIP / 28 kW X

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C

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5.3 PUMP - EOLO 32 kW

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A: Available head at top speed with by-pass closed (adjuster screw fully tightened).B: Available head at top speed with factory setting (screw turned 1-1/2 turns in relation to the setting with the adjuster

screw fully loosened).C: Available head at top speed with by-pass fully open (adjuster screw fully unscrewed).

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LEGEND: A5 - CAR interface board B1 - Flow probe B2 - D.h.w. probe B4 - External probe (optional) CAR - Comando Amico Remoto remote control

(optional) CZ - Zoned control unit (optional) E1 - Ignition electrodes E2 - Detection electrode E4 - Safety thermostat F1 - Line fuse F2 - Neutral fuse M1 - Boiler pump M20 - Fan

M30 - Three-way valve P1 - Heating Timer R5 - D.h.w. temperature trimmer R6 - Heating temperature trimmer R10 - Main switch S4 - D.h.w. flow switch S5 - System pressure switch S6 - Flue pressure switch S8 - Gas type selector S20 - Room thermostat (optional) T1 - Ignition transformer X40 - Room thermostat jumper Y1 - Gas valve Y2 - Gas valve modulator

6 WIRING DIAGRAM - EOLO Maior kW

AMBIENT THERMOSTAT OR REMOTE CONTROLThe boiler is pre-engineered for installation of the Amico Re-mote Control (CAR), which must be connected to terminals 42 and 43 of connector X2 on the integrated electronic board, in compliance with the polarity and eliminating jumper X40.The boiler is pre-engineered for installation of the Ambient Thermostat (S20) and Programmer Clock (P1). If only one is

used, connect to terminals 40 and 41 and eliminate jumper X40. If both are used, connect S20 to terminals 40 and 7 and P1 to terminals 8 and 41 after having eliminated jumper X40.The External Probe (B4) must be connected to terminals 38 and 39 of connector X2 on the integrated electronic board.

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230 Vac50Hzsupply

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(optional) CZ - Zoned control unit (optional) E1 - Ignition electrodes E2 - Detection electrode E4 - Safety thermostat E11 - Aqua Celeris heating element F1 - Line fuse F2 - Neutral fuse K1-1 - Configurable relay K2-1 - Configurable relay

K3-1 - Aqua celeris heating element relay M1 - Boiler pump M20 - Fan M30 - Three-way valve P1 - Heating Timer R5 - D.h.w. temperature trimmer R6 - Heating temperature trimmer R10 - Main switch S4 - D.h.w. flow switch S5 - System pressure switch S6 - Flue pressure switch S8 - Gas type selector S20 - Room thermostat (optional) T1 - Ignition transformer X40 - Room thermostat jumper Y1 - Gas valve Y2 - Gas valve modulator

6.1 WIRING DIAGRAM - EOLO Maior kW VIP



Primary

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Zone ControlUnit

Connector on theelectronic board

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(optional) CZ - Zoned control unit (optional) E1 - Ignition electrodes E2 - Detection electrode E4 - Safety thermostat F1 - Line fuse F2 - Neutral fuse M1 - Boiler pump M20 - Fan

M30 - Three-way valve (optional) P1 - Heating Timer R5 - D.h.w. temperature trimmer (optional) R6 - Heating temperature trimmer R8 - Water heater funct. inhibiting resistance R10 - Main switch S4 - D.h.w. flow switch S5 - System pressure switch S6 - Flue pressure switch S8 - Gas type selector S20 - Room thermostat (optional) T1 - Ignition transformer X40 - Room thermostat jumper Y1 - Gas valve Y2 - Gas valve modulator

6.2 WIRING DIAGRAM - EOLO Maior kW X



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RELAYBOARD

Zone ControlUnit

NAT-LPG

Primary

Secondary

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LEGEND: 1 - D.h.w. flow switch 2 - D.h.w. probe 3 - D.h.w. heat exchanger 4 - Gas valve 5 - Burner 6 - Primary heat exchanger 7 - Flue hood 8 - Fan 9 - Sealed chamber 10 - Flue pressure switch 11 - Flow probe

12 - Safety thermostat 13 - System expansion vessel 14 - Automatic vent valve 15 - Boiler pump 16 - Three-way valve (motorized) 17 - Draining valve 18 - Filling valve 19 - Adjustable by-pass 20 - System pressure switch 21 - 3-bar safety valve 22 - One-way valve 23 - Flow limiter

7 HYDRAULIC LAYOUT - EOLO Maior kW

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LEGEND: 1 - D.h.w. flow switch 2 - D.h.w. probe 3 - D.h.w. heat exchanger 4 - Aqua celeris heating element (PTC) 5 - Aqua celeris 6 - Gas valve 7 - Burner 8 - Primary heat exchanger 9 - Flue hood 10 - Fan 11 - Sealed chamber 12 - Flue pressure switch

13 - Flow probe 14 - Safety thermostat 15 - System expansion vessel 16 - Air venting valve 17 - Boiler circulator 18 - Three-way valve (motorized) 19 - Draining valve 20 - Filling valve 21 - Adjustable by-pass 22 - System pressure switch 23 - 3-bar safety valve 24 - One-way valve 25 - Flow limiter

7.1 HYDRAULIC LAYOUT - EOLO Maior kW VIP

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LEGEND: 1 - Gas valve 2 - Burner 3 - Primary heat vexchanger 4 - Flue hood 5 - Fan 6 - Sealed chamber 7 - Flue pressure switch 8 - Flow probe 9 - Safety thermostat

10 - System expansion vessel 11 - Automatic vent valve 12 - Boiler pump 13 - Draining valve 14 - Three-way valve (without motor) 15 - Adjustable by-pass 16 - System pressure switch 17 - 3-bar safety valve 18 - Filling valve

7.2 HYDRAULIC LAYOUT - EOLO Maior kW X

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8 TECHNICAL SPECIFICATIONS - EOLO Maior kW

Maximum nominal heat input kW (kcal/h) 25.9 (22,241) 30.1 (25,920) 34.4 (29,579)

Maximum useful heat ouput kW (kcal/h) 24.0 (20,640) 28.0 (24,080) 32.0 (27,520)

Minimum nominal heat input kW (kcal/h) 10.7 (9,195) 12.2 (10,488) 14.6 (12,590)

Minimum useful heat output kW (kcal/h) 9.3 (8,000) 10.5 (9,030) 12.5 (10,750)

Efficiency at 100% heat output % 92.8 92.9 93.0

Efficiency at 30% heat output load % 90.7 90.9 91.5

Central heating circuit

Adjustable central heating temperature °C 35 - 85 35 - 85 35 - 85

Max system operating temperature °C 90 90 90

Max system operating pressure bar 3 3 3

Nominal (actual) capacity of expansion vessel litres 10 / (7.4) 10 / (7.4) 10 / (7.4)

Preload pressure of system expansion vessel bar 1.0 1.0 1.0

Available head with 1000 l/h flow rate kPa (m H2O) 35.30 (3.6) 38.24 (3.9) 39.22 (4.0)

Domestic hot water circuit

Useful heat output for D.H.W. production kW (kcal/h) 24.0 (20,640) 28.0 (24,080) 32.0 (27,520)

D.H.W. temperature adjustable range °C 30 - 60 30 - 60 30 - 60

Minimum D.H.W. dynamic circuit pressure bar 0.3 0.3 0.3

Maximum D.H.W. circuit pressure bar 10 10 10

Min. D.H.W. flow rate litres/min 1.5 1.5 1.5

Flow rate for continuous service (∆t 30°C) litres/min 11.5 13.4 15.3

Gas supply

NATURAL GAS (G20) MIN - MAX mbar 2.20 - 12.20 1.80 - 10.50 2.20 - 12.40

nozzles n°- ø mm 11 x 1.35 14 x 1.35 15 x 1.35

LPG (G30) MIN - MAX mbar 6.00 - 27.50 4.95 - 27.41 5.39 - 28.20

nozzles n°- ø mm 11 x 0.79 14 x 0.77 15 x 0.79

LPG (G31) MIN - MAX mbar 7.00 - 36.20 6.30 - 36.30 7.09 - 36.00

nozzles n°- ø mm 11 x 0.79 14 x 0.77 15 x 0.79

Supply voltage V/Hz 230 - 50 230 - 50 230 - 50

Nominal power absorption A 0.62 0.83 0.96

Installed electric power W 130 150 170

Power absorbed by fan W 25 48 60

Power absorbed by pump W 90 88 98

Electrical insulation degree IP X4D X4D X4D

Boiler water content litres 1.3 3.3 3.5

Empty boiler weight kg 43 45 46

EOLO 32EOLO 28EOLO 24

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8.1 TECHNICAL SPECIFICATIONS - EOLO Maior kW VIP

Maximum nominal heat input kW (kcal/h) 25.9 (22,241) 30.1 (25,920)

Maximum useful heat ouput kW (kcal/h) 24.0 (20,640) 28.0 (24,080)

Minimum nominal heat input kW (kcal/h) 10.7 (9,195) 12.2 (10,488)

Minimum useful heat output kW (kcal/h) 9.3 (8,000) 10.5 (9,030)

Efficiency at 100% heat output % 92.8 92.9

Efficiency at 30% heat output load % 90.7 90.9


Adjustable central heating temperature °C 35 - 85 35 - 85

Max system operating temperature °C 90 90

Max system operating pressure bar 3 3

Nominal (actual) capacity of system expansion vessel litres 7.5 / (6.6) 7.5 / (6.6)

Preload pressure of system expansion vessel bar 1.0 1.0

Available head with 1000 l/h flow rate kPa (m H2O) 35.30 (3.6) 38.24 (3.9)

Domestic hot water circuit

Useful heat output for D.H.W. production kW (kcal/h) 24.0 (20,640) 28.0 (24,080)

D.H.W. temperature adjustable range °C 30 - 60 30 - 60

Minimum D.H.W. dynamic circuit pressure bar 0.3 0.3

Maximum D.H.W. circuit pressure bar 10 10

Min. D.H.W. flow rate litres/min ≤ 2.0 ≤ 2.0

Flow rate for continuous service (∆t 30°C) litres/min 11.5 13.4

Gas supply

NATURAL GAS (G20) MIN - MAX mbar 2.20 - 12.20 1.80 - 10.50

nozzles n°- ø mm 11 x 1.35 14 x 1.35

LPG (G30) MIN - MAX mbar 6.00 - 27.50 4.95 - 27.41

nozzles n°- ø mm 11 x 0.79 14 x 0.77

LPG (G31) MIN - MAX mbar 6.99 - 36.19 6.30 - 36.30

nozzles n°- ø mm 11 x 0.79 14 x 0.77

Supply voltage V/Hz 230 - 50 230 - 50

Nominal power absorption A 0.62 0.83

Installed electric power W 130 150

Power absorbed by fan W 25 48

Power absorbed by pump W 90 88

Electrical insulation degree IP X4D X4D

Boiler water content (Aqua Celeris contents) litres 1.3 (4.0) 3.3 (4.0)

Empty boiler weight kg 43 45

EOLO 24 EOLO 28

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8.2 TECHNICAL SPECIFICATIONS - EOLO Maior kW X

Maximum nominal heat input kW (kcal/h) 30.1 (25,920)

Maximum useful heat ouput kW (kcal/h) 28.0 (24,080)

Minimum nominal heat input kW (kcal/h) 12.2 (10,488)

Minimum useful heat output kW (kcal/h) 10.5 (9,030)

Efficiency at 100% heat output % 92.9

Efficiency at 30% heat output load % 90.9


Adjustable central heating temperature °C 35 - 85

Max system operating temperature °C 90

Max system operating pressure bar 3

Nominal (actual) capacity of system expansion vessel litres 10 / (7.4)

Preload pressure of system expansion vessel bar 1.0

Available head with 1000 l/h flow rate kPa (m H2O) 38.24 (3.9)

D.W. circuit (in conjunction with Water Heater Unit)

Useful heat output for domestic hot water production kW (kcal/h) 28.0 (24,080)

Specific flow rate for 10 min. (∆t 30°C) 80 litre WHU litres/min 20.9




Flow rate for continuous service with WHU (∆t 30°C) litres/min 13.3

Gas supply

NATURAL GAS (G20) MIN - MAX mbar 1.80 - 10.50

nozzles n°- ø mm 14 x 1.35

LPG (G30) MIN - MAX mbar 4.95 - 27.40


LPG (G31) MIN - MAX mbar 6.30 - 36.30


Supply voltage V/Hz 230 - 50

Nominal power absorption A 0.83

Installed electric power W 150

Power absorbed by fan W 48

Power absorbed by pump W 88

Electrical insulation degree IP X4D

Boiler water content litres 2.5

Empty boiler weight kg 45

EOLO 28

20


The gas flow rates refer to the NHV at 15°C and with a 1013 mbar pressure.The fumes temperature values refer to a 15°C inlet air temperature.

9 COMBUSTION SPECIFICATIONS - EOLO 24 kW / 24 kW VIP

Nat. gas (G20) LPG (G30) LPG (G31)

Combustion efficiency at 100% nominal heat output % 93.6 93.6 93.6

Combustion efficiency min heat output % 88.0 88.0 88.0

Flue losses with burner on (100% nom. heat output) % 6.4 6.4 6.4

Flue losses with burner on (min heat output) % 12.0 12.0 12.0

Flue losses with burner off % 0.02 0.02 0.02

Casing losses with burner off % 0.70 0.70 0.70

Casing losses with burner on (100% nom. heat output) % 0.80 0.80 0.80

Casing losses with burner on (min heat output) % 1.0 1.0 1.0

Flue temperature Maximum Heat Input °C 122 113 107

Flue temperature Minimum Heat Input °C 96 88 89

Flue flow rate at Maximum Heat Input kg/h 51 57 60

Flue flow rate at Minimum Heat Input kg/h 54 60 59

CO2 at Maximum Heat Input % 7.40 7.50 7.00

CO2 at Minimum Heat Input % 2.70 2.80 2.80

CO at Maximum Heat Input mg/kWh 66 49 37

CO at Minimum Heat Input mg/kWh 89 18 16

NOx at Maximum Heat Input mg/kWh 265 358 338

NOx at Minimum Heat Input mg/kWh 176 90 89

Weighted CO mg/kWh 54 - -

Weighted NOx mg/kWh 176 - -

NOx class - 2 2 2

21



9.1 COMBUSTION SPECIFICATIONS - EOLO 28 kW / 28 kW VIP / 28 kW X






















NOx class - 3 3 3

22



9.2 COMBUSTION SPECIFICATIONS - EOLO 32 kW






















NOx class - 2 2 2

23


10 OPTIONALS - EOLO Maior kW

The boiler can be coupled to the DIM (Multi-system Distribution Manifold) available in 5 recessing kits.

Amico Remote Controlcode 3.011236

External Probecode 3.014083

Telephone controlcode 3.013305

Remote timer-thermostat (wireless)code 3.014439

Digital weekly timer-thermostatcode 3.014438

Polyphosphate dispenser kitcode 3.014945

Antifreeze electric heating element kit (-15 °C)code 3.015348

Supplementary system expansion vessel kit (2 litres)code 3015413

Configurable relay interface kitcode 3015350

Remote filling kit(including configurable relay interface kit)

code 3.015349

Connections set kit code 3.019319

Universal connection kit code 3.011667

Disconnector kit for the water main code 3.015408

Control unit kit for zoned systems code 3.011668

24


10.1 OPTIONALS - EOLO Maior kW VIP






Weekly digital timer-thermostatcode 3.014438

Polyphosphate dispenser kitcode 3.014945


Supplementary system expansion vessel kit (2 litres)code 3015450

Control unit kit for zoned systemscode 3.011668

Remote filling kitcode 3.015411

Disconnector kit for the water main code 3.015408

Universal connection kit code 3.011667On-off cock kit code 3.4297


25


10.2 OPTIONALS - EOLO Maior kW X





Weekly digital timer-thermostatcode 3.014438


Water Heater connection kitcode 3.015359

Supplementary system expansion vessel kit (2 litres)code 3.015413

Configurable relay interface kitcode 3.015350

Control unit kit for zoned systemscode 3.011668

Riser pipe connection kit (WHU 105 and WHU 200) code 3.014920On-off cock kit code 3.4297



42041 Brescello (RE) Italy - Tel. 0522.689011 - Fax 0522.689102

www.immergas.com

During their working life, the performances of the products are influenced by external factors such as the hardness of the domestic water, the weather condi-tions, scaling in the system, etc. The data indicated in this brochure refer to new products, installed and used in compliance with the current standards in force.N OT E : r e m e m b e r t o h a v e y o u r a p p l i a n -ce periodical ly serviced.

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