The new generation for premix condensing - gas adaptive systems
E lektra Combustion Management System
SIT ECMS Elektra Combustion Management System
Thanks to consolidated experience in the gas combustion process together with the continuous innovation of our product development department, we bring to the market our latest-generation combustion management system. SIT’s combustion expertise is embodied in a state-of-the-art solution to maximise systems efficiency while respecting the environment.
Elektra CMS is the SIT state-of-the-art solution for premix gas adaptive applications. A combination of products and experience that together provide an outstanding result in terms of:
- Gas adaptivity: detection and reaction to the gas composition over the time; - Efficiency: high performances in every ambient condition; - Low Emissions: continuous optimal Lambda regulation.
877 Elektra gas valve
NG40-E fan
Human Machine Interface
Elektra Boiler Integrated Control (BIC)
Elektra CMS perfectly fits heating applications with a high modulation range and offers a unique Plasma Pulse intelligence to analyse the flame and provide the best gas adaptivity.
“A lifetime continuous commissioning process that always guarantee comfort and efficiency”
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Elektra CMS creates value over the complete stakeholder chain:
from OEM, going throw the Service, up to the End User by targeting the two main aspects of a gas appliance application: combustion and efficiency
Value Proposition COMBUSTION EFFICIENCY
Air/Gas Ratio Resilience - Best Lambda region - Minimize perturbation factors - Clean combustion - Preventive maintenance
Gas adaptive Modulation - Gas composition detection - Stable regulation & fast reaction - Flexibility cross countries - Energy saving
STAKEHOLDER OEM - SERVICE - END USER Air/Gas ratio: Lambda
INCOMPLETE λ HEAT INCOMPLETE λ HEAT COMBUSTION OPTIMAL LOSS COMBUSTION OPTIMAL LOSS co, η Elektra CMS, based onη flame analysis, electrically Highest appliance manages the NG40-E blower and the 877 Elektra e ciency INCOMPLETE λ HEAT INCOMPLETE λ HEAT gas valve in order to target the correct air/gas ratio COMBUSTION OPTIMAL LOSS COMBUSTIONco OPTIMAL LOSS keeping the application in the optimal Lambda region. co, η Highest η η appliance Highest e ciency appliance e ciency co Highest η appliance e ciencyLowest CO Lowest CO generation generation
λ λ λ η 1,0 1,2 1,4 λ 1,0Lowest1,2 CO 1,4 Lowest CO generation generation High modulation
λ λ λ η 1,0 1,2 1,4 1,0 1,2 1,4 λ Elektra CMS capability of high modulation ratio provides advantages in terms of:
- Stable regulation at low heating load avoiding cycling (on/off) - Fast reaction to the DHW request with stable hot water flow temperature control - Extended appliance longevity due to less mechanical and thermal stress
SIT ECMS Elektra Combustion Management System 877 Elektra
Multifunctional control for domestic boilers with premix burner and automatic ignition
Main Features
- Two automatic shut-off valves, silent operation (EV1, EV2) - Pressure regulator (PR) - Modulating device driven by a stepper actuator (MD)
- Inlet pressure test point (PIN) - Inlet filter (FL)
Functions
Shut-Off Modulation - First automatic shut-off valve (EV1) class C - Continuous outlet flow rate modulation according to EN 126 - Modulating range 100 – 5000 l/h (d=1) @ 20mbar - Second automatic shut-off valve (EV2) class C inlet pressure according to EN 126
Pressure Regulation - Direct compensated pressure regulator class C according to EN 126
The stepper motor acts the flow adjuster in accordance with the chart below Gas flow Rate [l/h d:1]
Motor steps
Flow rate curve with Pin = 20mbar @ 20°C
SIT ECMS Elektra Combustion Management System NG40-E
Fan with brushless motor for gas appliances using premix burner
Main Features
Housing Impeller Mixer (sold separately) - Made of die-cast aluminum - in antistatic plastic material - Different sizes available - Divergent venturi - Installable with several orientations - Outlet flanges in many designs
Brushless motor Version with only Hall sensor Motor protection cap - 230V-50Hz controlled by PWM - within a package with electronic - 3 different position (rotation at 120°)
Functions
- Wide modulation (10:1) NG40-E M21 - High performance (divergent venturi “21”) - Low noise - Modular & installation flexibility - Compact design
NG40-E M28 (divergent venturi “28”) Combinations of fan models and mixers
Mixer M40-E Mixer M40-E
Various sizes of venturi are available (identified by different colors) to fit the maximum appliance power
Appliance Mixer Convergent Fan Appliance Mixer Convergent Fan reference color diameter model reference color diameter model power [kW] [mm] power [kW] [mm] 24 Yellow 18 35 Black 23 24 Orange 19 NG40-E 38 Black 23* NG40-E 28 Grey 20 M21 42 Brown 28,55 M28 28 Blue 21 45 Green 29,5* 30 Blue 21* * Mixer without air turbulator (cross)
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Elektra Combustion Management System Elektra Boiler Integrated Control
Elektra CMS embeds as a software the SIT combustion experience and guarantees the maximum system efficiency at lowest emissions
Main Features
Platform User Interface Protocol - Gas Adaptive - Integrated or Remote Display - Modbus, OpenTherm, LIN, - Pneumatic - LCD custom, TFT dotMatrix colored with touch technology BACnet, CAN
Advanced actuators Software Connectivity & I/O - 877 Elektra Valve - Complete condensing boiler management - Complete range of sensors - NG40E Fan - Advanced SW for gas adaptive application and actuators - 848 Valve - Dedicated suite for OEM application fine tuning - Wi-Fi & Bluetooth - NG40/NG40m Fan - Preventive Maintenance η
Human Machine Interface
HMI as a key element for differentiation. HEAT Customer has the flexibility to design the interface to make its own brand recognition on the market and create a “family feeling” approach across the product line. λ LOSS
Diagonal 7.0’’ OPTIMAL
Diagonal 5.0’’ INCOMPLETE
Diagonal 3.5’’ COMBUSTION Highest
Diagonal 2.8’’ Hardware Features Software Features - TFT doMatrix colored - Multilanguage interface appliance - Touch screen technology - System integration - Flexibility in personalization e ciency η SIT ECMS
HEAT LOSS co λ OPTIMAL INCOMPLETE COMBUSTION co, η Lowest CO generation λ Highest appliance e ciency 1,4 1,0 1,2
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Elektra Combustion Management System
From kickoff to the start of production, we are present in each single phase to smoothly deploy the new application into the market.
ARCHITECTURE FIELD TEST Identify components for the “heating” engine Installation in Field under control
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OEM TEAM c 3 4 CUSTOMIZATION SINERGY WORK LABORATORY TEST η HMI and COMFORT personalization Test appliance in Customer Lab
Platform Approach
OEM has the possibility to develop a Platform: HEAT - SIT as “One stop Shop” solution - Flexibility to easily move from Pneumatic to Gas Adaptive application (vice versa) - Reduce the time to market and effect on the complexity in production line. λ LOSS
Elektra Software Suite guarantees maximum flexibility to the OEM 877 ELEKTRA by providing a dedicated software able OPTIMAL E 1 6 C to speed up the laboratory phase and to M reduce the Time-To-Market for a new boiler. S P n INCOMPLETE 848 SIGMA e u
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6600 appliance
6400 Display 2 TAU 3 4 6200 6000 e ciency
NG40-E INCOMPLETE λ HEAT INCOMPLETE λ HEAT COMBUSTION OPTIMAL LOSS COMBUSTION OPTIMAL LOSS co, η η Highest η SIT ECMS appliance e ciency co Highest η appliance HEAT e ciency
Lowest CO Lowest CO LOSS generation generation co
λ λ λ λ η 1,0 1,2 1,4 1,0 1,2 1,4 λ OPTIMAL INCOMPLETE COMBUSTION co, η Lowest CO generation λ
INCOMPLETE λ HEAT INCOMPLETE λ HEAT COMBUSTION OPTIMAL LOSS COMBUSTION OPTIMAL LOSS co, η Highest η Highest appliance appliance e ciency co Highest η 1,4 appliance e ciency e ciency 1,2 Lowest CO Lowest CO 1,0 generation generation
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λ λ 1,4 λ 1,2 1,0 Viale dell’Industria, 31-33-35129Padova -ITALY www.sitgroup.it [email protected] Tel. +39049 8293111
Subject to change without notice