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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.
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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
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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
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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
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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
82
38 60 35
145
250
141
124
171 26
9
MG
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385= =
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15
600
270
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246
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132
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385= =
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194
106
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285
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865
CS CA
700
450
CS CA440
201
600
135
MURELLE HE 50 R i
MURELLE HE 50 R e
6
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
82
38 60 35
145
250
141
124
171 26
9
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385= =
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15
600
270
550
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132
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194
106
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M
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285
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CS CA
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135MURELLE HE 110 R i
MURELLE HE 110 R e
7
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Murelle HE R IN CASCADE
Types of complete plants
100
100
200
200
300
300
400
400
500
500
600
600
700
800
1000
200
600
2000
3000
4000
5000
1500
400
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1400
1600
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2500
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FLO
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3
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.