Choosing the right RECD installation service for DG set is just as important as selecting the retrofit emission-control device itself. A technically suitable RECD can still create operational or maintenance issues when the installation is poorly planned, the existing exhaust arrangement is ignored, or the system is not commissioned properly. For industrial facilities, hospitals, offices, commercial buildings, educational institutions and other sites operating diesel generators, professional installation should therefore be treated as an engineering activity rather than a simple fitting job.
CPCB has published a System and Procedure for Emission Compliance Testing of Retro-fit Emission Control Devices (RECD) for Diesel Power Generating Set Engines up to Gross Mechanical Power 800 kW. The procedure establishes a framework for testing and Type Approval of applicable RECD systems and includes technical considerations relevant to installation and operation.
Why Installation Quality Matters
An RECD becomes part of the DG set's existing exhaust and operating environment. The installation therefore has to accommodate the physical configuration of the generator while preserving safe and appropriate operating conditions. The exhaust pipe may have a particular diameter, flange pattern, routing and silencer arrangement. The available mounting location may also be limited by the generator room, enclosure or structural supports.
A professional installation team assesses these conditions before fabricating or connecting the system. This reduces the risk of discovering after delivery that additional fabrication is needed or that access for future maintenance is inadequate. The quality of installation also matters for long-term serviceability. A system that is difficult to access can make routine inspection more complicated and increase maintenance downtime.
The Process Should Begin With a Site Assessment
A reliable installation service usually begins before the RECD reaches the facility. The installer should collect information about the engine manufacturer, exact engine model, gross mechanical power, rated speed and DG rating. Photographs and measurements of the exhaust system can then be reviewed before the site visit.
During the site assessment, the installation team can inspect the exhaust outlet, pipe dimensions, existing silencer, flanges, bends, support structure and available space. CPCB's RECD framework includes exhaust back pressure as a technical parameter within the testing process. That makes it important to understand how the retrofit will interact with the existing exhaust system rather than treating the installation as a purely mechanical attachment.
Matching the Product to the Generator
Installation should not begin until the correct RECD model has been established for the generator. This is particularly important in facilities with several DG sets. A single site may contain generators with different engine manufacturers, models and power ratings.
CPCB's published manufacturer information identifies RECD applicability across different engine-power ranges and Phase I/Phase II applications. A professional installation provider should therefore work from the documented product model and application rather than simply matching the device to the commercial kVA rating.
The installation team should know exactly which RECD is being fitted to which DG.
What Professional Installation Can Include
A complete service may cover more than physically mounting the RECD. Depending on the project, the scope can include site inspection, exhaust measurements, fabrication, mounting arrangements, installation, controller and sensor connections where applicable, commissioning and handover documentation.
The exact scope should be stated in the quotation.
This is particularly important for industrial projects because customers sometimes receive an equipment quotation that does not include site fabrication or commissioning. A professional proposal should make these responsibilities clear before the purchase order is issued.
Fabrication Should Be Planned Around the Existing Exhaust
No two generator rooms are necessarily identical. One DG may have a straight exhaust connection with sufficient mounting space, while another may require a custom support or a modified connection arrangement. The fabrication should therefore be based on actual measurements from the site rather than assumptions made from the DG's nominal rating.
The installer should also consider access for future inspection and maintenance. Where possible, maintenance personnel should be able to reach the relevant components without dismantling large parts of the exhaust system.
Exhaust Back Pressure Requires Attention
One of the technical concerns during installation is exhaust back pressure. An RECD adds components to the exhaust path, so the installer should understand the design limits applicable to the engine and the selected system. CPCB's published procedure specifically includes exhaust back pressure in the RECD testing framework.
This does not mean that every installation has the same allowable value. The relevant engine and product documentation should be used when evaluating the installation. A qualified installer should therefore be able to explain how the exhaust arrangement has been assessed.
Controller and Sensor Installation
Modern RECD systems may use controllers and sensors to monitor or manage operating conditions. The exact configuration varies by product. Depending on the design, sensors may monitor temperature, pressure or other parameters, while the controller can display system status, alarms or regeneration-related information.
Aceget's published RECD information includes model-specific monitoring and regeneration features. For example, its 625 kVA/500 kW product describes autonomous regeneration control and back-pressure monitoring as part of the system. During installation, the wiring, sensor placement and controller location should therefore be properly planned and documented.
A poor electrical or sensor installation can create unnecessary troubleshooting problems later.
Commissioning Should Be Treated as a Separate Stage
Once the physical installation is complete, the system should be commissioned according to the manufacturer's procedures. Commissioning can include checking mechanical connections, verifying controller power, confirming sensor signals, reviewing alarms and ensuring that the system is operating as intended.
The facility should receive appropriate handover information, including the RECD model, identification details, installation date and relevant operating instructions. For multi-DG projects, each generator should have its own commissioning record.
This makes it easier to track which system was installed on which machine.
Training the Facility Team
Installation is more effective when the operators understand the equipment. The service provider should explain normal operating indications, alarm meanings, regeneration-related information where applicable and basic maintenance requirements.
This is especially important when the DG is operated by staff who did not participate in the original installation. The aim is not to turn every operator into an RECD technician. It is to make sure that routine warnings are understood and that serious faults are escalated appropriately.
Choosing an Experienced Installation Team
A good installation service should be able to demonstrate experience with both DG sets and retrofit emissions-control systems. The provider should be comfortable discussing exhaust modifications, fabrication, sensor/controller installation and commissioning. It should also understand the importance of keeping the product documentation aligned with the equipment installed.
For example, Aceget states that its engineers and field technicians provide installation and service support and describes professional on-site installation for its RECD products. The important point for any buyer is to verify what is actually included in the service contract.
Installation by Manufacturer vs Independent Contractor
Some projects are installed directly by the RECD manufacturer. Others use an authorized or independent installation contractor. Both approaches can work, but the responsibilities should be clear.
If an independent contractor performs the installation, establish who remains responsible for commissioning, warranty and future troubleshooting. For equipment under warranty, it is also useful to confirm whether installation by a third party affects the warranty terms.
This should be resolved before work begins rather than after a fault occurs.
What Makes an Installer “CPCB Compliant”?
The phrase should not be interpreted as a standalone certification of the installation company. CPCB's RECD framework establishes requirements for the testing and Type Approval of applicable RECD systems. An installation provider can support the implementation of a product that has the appropriate technical documentation, but that does not mean the installer itself is “CPCB approved” in the same way as a product's Type Approval process.
For accurate communication, it is better to say that the installation is performed according to the applicable product and technical requirements, while the overall regulatory position is verified separately.
Documentation Should Follow the Installation
A professional installation should leave a clear technical record. The facility should maintain the DG identification, RECD manufacturer, exact model, product identification, site survey information, fabrication details, installation report, commissioning record and warranty documentation.
CPCB's procedure includes product-identification and conformance-labelling information such as manufacturer, manufacturing plant, model and unique identification. This information should be linked to the individual DG after installation.
Maintenance Access Should Be Considered During Installation
A common mistake is designing the installation only for the day of commissioning. The system also needs to be accessible months or years later. The installer should therefore consider how technicians will inspect sensors, controller connections, filters or other serviceable components. Clearance around the equipment should be sufficient for the maintenance activities specified by the manufacturer.
For industrial facilities, maintenance access can make a significant difference to downtime. A well-installed system is one that can be serviced without unnecessarily disrupting the generator room.
Warranty Depends on Installation Conditions
Before the installation begins, understand the warranty conditions. Ask whether the manufacturer requires installation by its own team or an authorized installer. Clarify which installation-related issues are covered and who pays for site visits.
Aceget's model-specific product pages publish warranty information for individual RECD products, while the company's service information describes installation and after-sales support. The exact warranty should always be confirmed for the selected model.
Cost Should Be Compared as a Complete Installation Package
A low installation price does not necessarily represent better value. One quotation may include site inspection, fabrication, installation and commissioning. Another may charge for each activity separately. Compare the full project scope before making a decision.
A useful quotation should clearly separate equipment and installation responsibilities so the buyer understands the total project cost. For multi-DG projects, the supplier should also identify the cost implications of different exhaust configurations.
Where the RECD system for industrial generators Needs a Different Approach
An RECD system for industrial generators is typically deployed in environments where the generator forms part of a larger facility, so installation planning becomes particularly important. Industrial sites can have restricted access, complex exhaust routing, multiple generators and demanding maintenance schedules. The installation team therefore needs to consider both the immediate retrofit and the operating environment around it.
For plants with several DG sets, a DG-wise installation plan can help coordinate shutdowns, fabrication and commissioning without unnecessarily affecting production.
Online Purchase Still Requires Installation Planning
An online RECD purchase can make product comparison and enquiry easier, but installation still needs site-specific attention. When buying the equipment remotely, send the supplier photographs and measurements of the DG exhaust system. Request a technical discussion before finalizing fabrication.
The supplier should confirm whether the quoted price includes installation at the actual location. This is particularly important when the site is outside the manufacturer's main service region.
CPCB Compliance Should Be Verified Separately
The RECD installation should be supported by the relevant product documentation, but product approval does not automatically establish complete site compliance. The applicable regulatory requirements can depend on the DG engine, RECD model, installation, location and current directions from competent authorities.
CPCB's official RECD procedure and current publications should therefore be checked before making a compliance claim. For installations in different states or regulated regions, buyers should also review the requirements of the applicable State/UT pollution-control authority and other competent authorities.
Frequently Asked Questions
What is included in professional RECD installation?
The scope can include site inspection, exhaust assessment, fabrication, mounting, installation, controller/sensor connections and commissioning, depending on the supplier's quotation.
Why is a site survey important?
A site survey helps the installer understand the actual exhaust dimensions, mounting space, fabrication needs and maintenance access before the equipment is installed.
Does installing a Type-Approved RECD guarantee complete compliance?
No. Product Type Approval is one part of the technical framework. Correct installation, maintenance and all current requirements applicable to the specific DG and location must also be considered.
Can an independent contractor install an RECD?
Yes, where permitted by the product/manufacturer arrangements. However, the buyer should confirm warranty, commissioning and technical-support responsibilities before using an independent installer.
What should I receive after installation?
The facility should obtain appropriate installation and commissioning records along with the RECD model/identification information, warranty details and operating/maintenance documentation.
Conclusion
The best RECD installation service for DG set is not simply the team that can attach the equipment to the exhaust pipe quickly. It is the service provider that understands the DG application, surveys the site, plans the fabrication, considers exhaust-system requirements, installs the control components properly and completes commissioning with clear documentation. For industrial buyers, installation should therefore be evaluated together with the product itself. The service provider should be able to demonstrate a clear process from site inspection through installation, commissioning, warranty and maintenance. Aceget currently describes on-site RECD installation, technical support and after-sales maintenance services for its products. As with any supplier, the exact scope and warranty terms should be confirmed for the particular DG and RECD model. A professionally installed RECD is one that is technically matched to the generator, integrated correctly with the exhaust system, commissioned properly and supported with documentation that the facility can rely on later.