G50
Maximum output in minimum space.
Technical data
Mephisto G50
Net output (adjustable)
Net efficiency Electric
General
Gas connection
Heating connection
Residual head for net output: 10,3 mWS
Electrical connection
- Pre-fuse NH00 100 A gL (gG) or SLS E-100 A
- Supply line H07RN-F-J 5 x 35 mm2, up to 50 m in length for installation types B to G; 35 mm2 for all installation types
Plate heat exchanger
Soldered stainless steel compact heat exchanger for separating the heating system from the CHP engine water circuit
Pollutant emissions
Mephisto G50 comes 50% below the German regulation emission limit
Combustion intake air
Space-air-dependent operating mode
Flue gas connection
- Flue gas conduit D110, fire resistance class B1 plastic pipe made of PP, permitted as a flue gas conduit for condensing heat generators with flue gas temperature up to 120 °C
- Flue gas temperature limited to max. 90 °C on thermostat
- Safety thermal cut-out set to 100 °C
- Recommended flue gas counter-pressure: 500 Pa; maximum flue gas counter pressure 800 Pa
- Flue gas flow rate: 161 m3/h i.N. in normal state is equivalent to 208 m3/h at TFlue gas = 80 °C
- Maximum condensate quantity: 22 l/h
Flue gas heat exchanger
- Thermodynamically optimised cast aluminium-silicon heat exchanger
- Integrated catalytic converter
Utilisation of calorific value
- The flue gas temperature is a maximum of 15 K above the corresponding return temperature
- Calorific value used at a return temperature of about 55 °C and above
Engine
- industrial gas engine
- Model: MAG 49.4 S 313/HMG 434 S 133
- 4-cylinder Otto engine, water-cooled
- Displacement: 4.900 cm³
Coupling
Maintenance-free, plug-in, flexible metal/plastic coupling to compensate for radial, axial and angular misalignment
Generator
- Four-pole asynchronous machine for parallel operation on the public grid
- Manufacturer: Weier GmbH
- Model: DGS-F-250L4 water-cooled
- 3 × 400 V, 50 Hz
- Start-up current: 55 A (FU frequency inverter fitted as standard)
- Rated current: 72 A / 80 A
- cos φ: 1...0,9 (inductive/capacitive)
- Rated power: 62,5 kVA
- Rated speed: 1.500 min-1
Compensation
Due to the requirements in German code of practice VDE-AR-N 4105:2018-11, operating own generating systems without reactive power compensation is only permitted in exceptional cases. A cos cos φ of 0.95 is achieved with the standard fixed compensation.
Controller
- Industrial computer with powerful MPC555 microcontroller, 32-bit power PC with FPU
- Fully automatic operating control
- Remote monitoring/operation via LAN or optional mobile data connection
- Interfaces to higher-level DDC controls: digital and analogue inputs and outputs; optional CAN bus, RK512, Modbus, LON bus, Profibus DP, BACnet/IP, IEC 104, Profinet
Housing
- Sturdy, easily removable, frameless full thermoacoustic enclosure
- Machine unit on four Asonator steel springs
- Optional base on two vibration dampers to isolate noise
Noise emissions
- Mean sound pressure level at 1 m distance ≤ 60,0 dB (A) as per DIN 45635-11
- Mean sound pressure level (standard equipment) at 1 m distance (45°) to chimney outlet ≤ 51,2 dB (A) as per DIN 45635-11
Third octave band spectra isolation can be provided on request
Dimensions
L × W × H in mm: 2.395 × 1.020 × 1.930 with electrical enclosure.
Required space
L × W × H in mm: 4.660 × 2.000 × 2.100 without sound insulation base.
Height of sound insulation base: 250mm
Installation and base plans will be provided on request
Operating weight
1.980 kg
Delivery
- Machine unit, self-supporting: 1.640 mm × 785 mm, 1.350 kg
- Panelling with accessories on pallet: 2.000 mm × 1.200 mm, 590 kg