Murelle HE R iMurelle HE R e

CommerCial Boilers

Murelle HE R is a new range of pre-mix, high-power condensing boilers.It is available in 2 versions from 46.8 to 104.0 kW, only for heating. It is designed to be installed individually in a technical room, resolving problems of space and handling.The extraordinary flexibility of the equipment allows for the management of three heating circuits at different temperatures and, through optional kits, of a forced circulation solar system

and two low temperature areas.Murelle HE R is also suitable for extensive use: with the new on-board electronics, it is possible to manage up to 8 generators in cascade (for “i” models”).“i” models are designed for the internal installation, while “e” models are specifically for outdoor installation, protected against atmosperic agents.

2

Murelle HE R

High-power wall-hung boiler

The range

Internal

Outdoor

Installation MURELLE HE R MURELLE HE R IN CASCADE

50 kW 110 kW 50 kW 110 kW

Murelle HE R i Murelle HE R e Murelle HE R iin cascade

3

Product advantages

> Wide range of modulation: 1:5 for 50 and 110 kW versions

> 2 versions heating only from 46.8 to 104.0 kW with modulating pump

> Stainless steel coil heat exchanger

> Management of a series of up to 8 boilers in cascade

> Possibility of ModBus communication

> 110 R version can be installed in systems with pressures up to 5 bar

Electronic board with microprocessor

Continuous electronic modulation of flame

Automatic ignition and ionisation of flame

Chimney sweep function that facilitates the analysis of combustion

Antifreeze system created with heating probe

Collectors of water flow and return and gas supply system

Unidirectional valves

Exhaust condensate including drain pipe

Collector of exhaust condensate including drain pipe

Water/flue exchanger made of stainless steel

Flue collector made of polypropylene for indoor installation

Premix burner with low NOx

Pump on the primary circuit with air separator

Post circulation of the pump

Post ventilation of fan

Gas valve with modulator and double valve that interrupts gas release in the absence of flame

External temperature sensor

Self-diagnostics via LCD display

Safety in case of lack of water

Safety thermostat

Flue thermostat for the protection of the exhaust pipe in polypropylene

Safety valve 3.5 BAR (5 BAR for versions with 100 kW motor) per unit of heat

ISPESL safety kit

Hydraulic compensator kit

Basic electrical panel[1]

Complete electrical panel[2]

[1] IP65 outdoor resin electrical panel. Management of up to three boilers in cascade, a direct area and a boiler. Magneto-thermal protection, two relays for pump decoupling system and boiler pump, jack plug for auxiliary power.

[2] IP65 outdoor resin electrical panel. Management of up to five boilers in cascade, a direct area, two expansion boards for MIX or solar areas (one already installed) and a boiler, jack plug for auxiliary power. Magneto-thermal protection, two relays for pump decoupling system and boiler pump.

Technical and safety features

Murelle HE R i/eMurelle HE R i

in cascade

Series Optional Not planned

4

Sime condensation

All Murelle HE R modular systems are equipped with 50 or 110 kW condenser coil exchangers, characterised by high yield. The combustion of natural gas generates water vapour which in traditional boilers is conveyed to the outside through the release of flue from the chimney. The technology used in Murelle HE R modular systems allows for the recovery of this heat. The main exchanger is made of stainless steel suitable for resisting the corrosive action of the condensate. Its particular cylindrical shape (single for the 50 kW models and overlapping double for 110 kW models) as well as the efficient collection system of the liquid condensate, ensure the best possible heat exchange. The radial pre-mix burner is made of steel. Characterised by a cylindrical shape and positioned

at the centre of the combustion chamber, it produces a particular “microflame” at low temperature which reduces the production of pollutants (CO and NOx) significantly.The air and the gas necessary for combustion enter the burner and are mixed in an ideal balanced ratio.The recovery of heat contained in the combustion flue takes place through a particular process: the water vapour content of the flue condenses when in contact with the surfaces of the heat exchanger made colder by the water return from the heating circuit. During the condensation, the transfer of energy takes place that would otherwise be lost with the release of flue.

110 kW exchanger

50 kW exchanger

5

MURELLE HE R

MODEL 50 i - 50 e 110 i - 110 e

Product CodesInternal 8104976External 8104977

Internal 8104996External 8104998

MURELLE HE R

Nominal heat output (80-60°C) kW 46.8 104.0

Reduced heat output (80-60°C) kW 9.3 21.1

Nominal heat output (50-30°C) kW 51.2 112.8

Reduced heat output (50-30°C) kW 10.5 23.6

Nominal heat input kW 53.3 118.1

Reduced heat input kW 10.6 21.6

Maximum useful yield (80-60°C) % 87.7 97.8

Maximum useful yield (50-30°C) % 96.0 106.1

Losses after shutdown W 76 126

Absorbed power consumption W 180 309

Electric protection degree IP X4D X4D

Water content l 2.30 8.20

Max/min inlet water pressure Pa 400/50 500/50

Maximum temperature °C 85 85

Max pressure of flue collector release Pa 147 147

Max/min flue gas temperature 80-60°C °C 85.0/70.0 86.2/74.6

Max/min flue gas temperature 50-30°C °C 52.0/45.0 61.6/49.2

NOx emission class 5 5

Weight (i/e) kg 45/52 100/113

R C.H. return 1" 1"

M C.H. flow 1" 1"

G Gas connection 3/4" 3/4"

R3 Boiler return 1" 1"

C Filling system 1/2" 1/2"

S3 Condensation outlet ø 25 mm ø 25 mm

CA Air inlet ø 80 mm -

CS Exhaust ø 80 mm -

HYDRAULIC CONNECTIONS 50 i 50 e

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MURELLE HE 50 R i

MURELLE HE 50 R e

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R C.H. return 1” 1/2 1” 1/2

M C.H. flow 1” 1/2 1” 1/2

G Gas connection 3/4” 3/4”

R3 Boiler return 1” 1/2 1” 1/2

S3 Condensation outlet ø 25 mm ø 25 mm

CA Air inlet ø 80 mm -

CS Exhaust ø 80 mm -

HYDRAULIC CONNECTIONS 110 i 110 e

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MURELLE HE R IN CASCADE

Number of generators 2 3 4 5 6 7 8

Nominal heat output (80-60°C) kW 93.6 140,4 187.2 234.0 280.8 327.6 374.4

Reduced heat output (80-60°C) kW 9.3 9.3 9.3 9.3 9.3 9.3 9.3

Nominal heat output (50-30°C) kW 102.4 153.6 204.8 256.0 307.2 358.4 409.6

Reduced heat output (50-30°C) kW 10.5 10.5 10.5 10.5 10.5 10.5 10.5

Nominal heat input kW 106.6 159.9 213.2 266.5 319.8 373.1 426.4

Reduced heat input kW 10.6 10.6 10.6 10.6 10.6 10.6 10.6

Maximum useful yield (80-60°C) % 87.7 87.7 87.7 87.7 87.7 87.7 87.7

Maximum useful yield (50-30°C) % 96.0 96.0 96.0 96.0 96.0 96.0 96.0

Absorbed power consumption W 360 540 720 900 1,080 1,260 1,440

Water content l 4.6 6.9 9.2 11.5 13.8 16.1 18.4

Max pressure of flue collector release Pa 147 147 147 147 147 147 147

Max/min flue gas temperature 80-60°C °C 85.0/70.0 85.0/70.0 85.0/70.0 85.0/70.0 85.0/70.0 85.0/70.0 85.0/70.0

Max/min flue gas temperature 50-30°C °C 52.0/45.0 52.0/45.0 52.0/45.0 52.0/45.0 52.0/45.0 52.0/45.0 52.0/45.0

NOx emission class 5 5 5 5 5 5 5

MURELLE HE 50 R i

Number of generators 2 3 4 5 6 7 8

Nominal heat output (80-60°C) kW 208.0 312.0 416.0 520.0 624.0 728.0 832.0

Reduced heat output (80-60°C) kW 21.1 21.1 21.1 21.1 21.1 21.1 21.1

Nominal heat output (50-30°C) kW 225.6 338.4 451.2 564.0 676.8 789.6 902.4

Reduced heat output (50-30°C) kW 23.6 23.6 23.6 23.6 23.6 23.6 23.6

Nominal heat input kW 236.2 354.3 472.4 590.5 708.6 826.7 944.8

Reduced heat input kW 10.6 10.6 10.6 10.6 10.6 10.6 10.6

Maximum useful yield (80-60°C) % 97.8 97.8 97.8 97.8 97.8 97.8 97.8

Maximum useful yield (50-30°C) % 106.1 106.1 106.1 106.1 106.1 106.1 106.1

Absorbed power consumption W 618 927 1,236 1,545 1,854 2,163 2,472

Water content l 16.4 24.6 32.8 41.0 49.2 57.4 65.6

Max pressure of flue collector release Pa 147 147 147 147 147 147 147

Max/min flue gas temperature 80-60°C °C 86.2/74.6 86.2/74.6 86.2/74.6 86.2/74.6 86.2/74.6 86.2/74.6 86.2/74.6

Max/min flue gas temperature 50-30°C °C 61.6/49.2 61.6/49.2 61.6/49.2 61.6/49.2 61.6/49.2 61.6/49.2 61.6/49.2

NOx emission class 5 5 5 5 5 5 5

MURELLE HE 110 R i

9

R C.H. return 2” Fl. PN6-DN100

M C.H. flow 2” Fl. PN6-DN100

G Gas connection Fl. PN6-DN50 Fl. PN6-DN50

S3 Condensation outlet ø 40 mm ø 40 mm

HYDRAULIC CONNECTIONS 50 110

M

RG

S3

Fonderie SIME S.p.A. reserves the right to modify its products in order to improve them without compromising their essential features, at any time and without prior warning. Therefore, this prospectus does not constitute a contract with third parties. 05.2017

Fonderie Sime S.p.A. - via Garbo, 27 - 37045 Legnago (vR) Italy - Tel. +39 0442 631111 - Fax +39 0442 631291

Fonderie Sime. S.p.A has obtained voluntary certifications ISO 14001 and OHSAS 18001, constituting international recognition of the commitment and responsibility assumed by Sime on matters of the environment and worker safety. Through the successful achievement of this objective, Sime has materialised its corporate mission, while undertaking to continuously improve its current activities and future processes.