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R-Gen Gas CHP Range | Remeha

Highly-efficient, low carbon commercial Combined Heat and Power (CHP) units.

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The Remeha R-Gen Combined Heat and Power (CHP) range is the sustainable solution to providing highly efficient heat and power for applications with consistent heating and electricity.

Converting gas into both electricity and heat in a single process at the point of use, the R-GEN NG operates at a higher level than traditional generation. It delivers a primary energy saving of up to 30% and up to 20% reduction in emissions.

The R-Gen 20/44 NG and 50/100 NG models can achieve outstanding total-fuel efficiencies of 103-104%, reducing greenhouse gas emissions by up to 60% and primary energy consumption by up to 40%.

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  • Features and benefits
  • Literature library
  • Technical information
  • Extremely efficient, lower operating costs – a more sustainable operation
  • Low CO2 and NOx emissions that support environmental legislation
  • Remote monitoring and control for greater visibility
  • Achieve even higher efficiencies of up to 104% with 5.5kWe, 20kWe and 50kWe condensing units
  • Suitable for new builds and existing buildings with year-round heat and electrical demands
  • A flexible solution to sustainable heat and power
  • Low noise starting from 48dBA max at 1m for a quiet operation
  • For single use, cascade or in conjunction with condensing boilers
  • A versatile solution to energy-efficient, low-carbon heat and power generation

R-Gen Gas CHP Range Documents

REMEHA R-GEN SENERTECH DACHS GEN 2 Technical Sheetpdf
R-Gen 20 44 Technical Sheetpdf
R-Gen 50 100 Technical Sheetpdf
Specification GuideR-Gen CHP Specification Guidepdf
Product FicheCHP ErP Fichepdf
ERPErP Label RGEN 20 44 EUpdf
pdf
ErP Label RGEN 50 100pdf
CHP ErP Product Labelpdf
ErP Label RGEN 20 44 UKpdf
ErP Labelling Dachs G55 Gen2 EUpdf
ErP Labelling Dachs G55 Gen2 UKpdf

Technical Information

Click to download the technical specification for the R-Gen Gas CHP Range in PDF format.

                                                                           DACHS G5.5(2)
Power Level 1   2 3
Seasonal space heating efficiency Class                      A+++
Rated heat output (P rated) kW 7.5 10.6 14.8
Seasonal space heating energy efficiency %                       186
Annual energy consumption kWh/GJ                     6366/23
Sound Power Level L WA indoors dB                        63
Electrical efficiency % 26.5 26.5 25.6
Fuel Natural Gas LPG
Power Level 1 2 3 1 2 3
Electrical Output kW 2.85 4.1 5.5 3 4.1 5.5
Thermal output kW 7.5 10.6 14.8 7.4 10.2 13.8
Fuel input kW 9.7 14.1 19.5 10.1 14 19
Voltage/frequency 3 ~ 230 V / 400 V / 50 Hz
Electrical auxiliary demand kW 0.065 0.07 0.08 0.065 0.07 0.08
Efficiency
Electrical(Hs/Hi) % 26.5/29.4 26.5/29.4 25.5/28.4 27.6/30.0 27.2/29.7 26.8/29.1
Thermal(Hs/Hi) % 68.9/76.4 68.1/75.5 68.4/75.9 67.7/73.5 67.2/73.0 67.0/72.8
Overall efficiency (Hs/Hi) % 95.3/105.7 94.6/104.9 93.9/104.2 95.3/103.5 94.6/102.7 93.8/101.9
Primary Energy Factor f PE,WV(6)                            0.417                          0.416
Power Coefficient 0.39 0.39 0.37 0.41 0.41 0.4
Sound Pressure Level dB(A)                           48                            47
Flexible Service interval oh                                           7000-11000(8)
Engine Stroke No                                                     4
Engine Cylinders No                                                     1
Generator Type Type                                         Asynchronous
Grid Connection Type                                               G98/1
Grid System Type                                                TN-S
Circuit Breaker Type                                                  C
Dimensions WxDxH mm                                    720 x 1070 x 1270
Weight kg                                                580
Space Requirements min(W X D) mm                                         1920 x 2020
Exhaust Connection Size DN                                               80
Mass Flue Gas Volume (wet) Kg/h                                               40
Flue gas volume (wet) m3/h                                               33
Flue gas volume (dry) m3/h                                               27
Flow Connection Size Inch                                               1"
Return Connection Size Inch                                               1"
Gas Connection Size Inch                                               1/2"
Condensate Connection Size Inch                                               1/2"
System working pressure (min) Bar                                               1
System working pressure (max) bar                                               2.8
CHP Safety Valve Fitted bar                                               3
Gas pressure (min) mbar 15 37
Gas Pressure (max) mbar 24 54

1) The Dachs complies with the high efficiency criteria according to German CHP law;
Values measured with standard gas G20 and/or G31 under standard conditions.
2) Minimum methane number : 35; including setting and nozzle adjustment on site.
3) According to ISO 30461, measured at the frequency converter outlet, tolerance + 3%; value may differ depending on altitude, ambient and operating conditions.
4) Values from type/component test report for a return temperature of 30 oC with integrated condensing heat exchanger; maximum supply flow temperature 83 oC, maximum return flow temperature 70 oC.
5) Values from type/component test report for a return of 30 oC referred to Hi, tolerance + 5%.
6) Calculation with the following power level percentage of the annual system uptimes: I = 30%, II = 15%, III = 55%.
7) Sound power level at distance of 1m according to DIN EN ISO 3744, ambient conditions according to DIN EN 15036-1.
8) No common flue gas evacuation with boiler.
9) Calculation according to EN 50465 for Dachs Gen2 packages with MSR3 temperature controller.

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