Once an RECD installation service for DG set has been completed, the project is not finished simply because the equipment is physically mounted on the exhaust. The post-installation stage is where the facility confirms that the RECD, controller, sensors, exhaust connections and supporting documentation are all in place and ready for operation.
A proper handover can prevent small installation issues from becoming larger maintenance problems later. It also gives the facility a clear record of what was installed, how it was commissioned and which maintenance procedures should be followed. For a 2026 installation, however, post-installation checks should be based on the exact RECD model, manufacturer instructions and current official requirements applicable to the individual DG set.
The First Check: Is the Correct RECD Installed?
The first post-installation task should be surprisingly simple: confirm that the product installed is the product that was purchased. Compare the physical RECD with the purchase order, quotation and technical documentation. Verify the manufacturer, exact model or type, serial or unique identification information and other available product markings.
CPCB's RECD framework includes detailed product-identification and conformance-labelling provisions. The documentation includes information such as the manufacturer or Type Approval certificate holder, manufacturing plant, RECD model, class, identifying part number, unique identification number, manufacturing date and Type Approval certificate number. If the delivered equipment differs from the approved purchase specification, the discrepancy should be resolved before the system is accepted as complete.
Check the DG and RECD Records Together
The RECD should remain linked to the specific DG on which it was installed. Record the DG manufacturer, engine model, engine serial number, gross mechanical power and DG rating alongside the RECD model and product identification.
This is particularly important for facilities operating several generators. Years later, the maintenance team should be able to determine exactly which RECD was installed on which DG without relying on memory. A simple DG-wise asset record can make future warranty claims, servicing and technical verification much easier.
Inspect the Exhaust Connections
After installation, inspect the complete exhaust connection carefully. Look at the joints, flanges, clamps, supports and fabricated sections. Check whether there are signs of leakage, loose connections, unusual vibration or inadequate insulation. The inspection should also consider whether the exhaust arrangement has been modified from the original design and whether the installed configuration matches the manufacturer's approved or recommended installation arrangement.
CPCB's RECD testing framework includes exhaust back pressure as an important technical parameter.
Consequently, post-installation verification should not stop at checking whether the RECD is physically connected. The technical team should also confirm that the exhaust system is operating within the applicable requirements for the particular engine and product.
Confirm the Controller Is Working
If the RECD includes a controller, the post-installation checklist should include its complete functional check. The operator should verify that the controller powers on correctly, displays the expected system information and receives signals from the relevant sensors. Depending on the model, the controller may monitor temperature, pressure, regeneration conditions or other operating parameters.
The exact functions vary between RECD systems, so the manufacturer manual should be used as the reference. A controller that displays no alarm does not necessarily prove that every sensor is functioning correctly. The commissioning procedure should include verification of the relevant sensor inputs.
Verify Sensor Installation
Sensors are an important part of many modern RECD systems.
Check that the sensors are:
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Correctly installed
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Properly connected
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Securely mounted
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Appropriately routed
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Identified in the documentation
The technician should also explain what each major sensor monitors and what type of indication or alarm may occur if it develops a fault. Aceget's published product information describes integrated automatic systems with sensors, controllers and indicators for certain RECD models. Its 100 kVA/80 kW product page, for example, describes integrated sensors and controllers for monitoring key operating parameters.
The exact sensor configuration should always be checked against the particular model installed.
Check Regeneration Operation
For an RECD system using particulate filtration, regeneration is an important post-installation consideration. The facility should understand how regeneration works on the installed product and how the controller indicates its status. Aceget's published model information describes automatic/passive regeneration on several of its RECD products.
The maintenance team should know whether regeneration occurs automatically, passively or through another manufacturer-specific process. Post-installation training should explain what operators should expect during normal operation and which warnings require technical attention.
Confirm the DG Is Operating Normally
The generator itself should also be observed after the retrofit. The facility should check for unusual vibration, unexpected exhaust behaviour, abnormal noise or other changes compared with normal DG operation.
The RECD is intended to work with the generator, so the post-installation review should consider the generator and retrofit as one operating system. If unusual symptoms appear after installation, the supplier should investigate rather than assuming that the issue is unrelated to the retrofit.
Review Exhaust Back Pressure Where Required
Because the RECD is integrated into the exhaust line, exhaust back pressure should receive particular attention. CPCB's published RECD procedure includes exhaust back pressure among the technical parameters considered during the testing process.
The facility should retain any applicable measurement or commissioning record provided by the manufacturer or installer. The relevant acceptable limit should come from the applicable engine and product documentation rather than from a generic value copied from another DG.
Confirm There Are No Unfinished Fabrication Jobs
A project should not be considered complete simply because the RECD has been mounted. Walk around the installation and check whether temporary supports, unfinished insulation, exposed wiring, incomplete cable routing or other outstanding work remains.
The facility should have a clear punch list if any work is still pending. A formal handover is much easier when every remaining item has an owner and expected completion date.
Check the Controller Location
The controller should be positioned so that the facility's operators and maintenance team can safely access it. The screen or indicators should be visible, while cables and electrical connections should remain protected according to the manufacturer's installation requirements.
For outdoor or harsh industrial environments, the controller's environmental protection requirements should also be checked. A technically good controller can become difficult to operate if it is installed in an inaccessible location.
Obtain the Warranty Documents
The post-installation handover should include written warranty information. Check the warranty period, starting date, covered components, exclusions and service procedure. Aceget's current model-specific product pages publish a 12-month standard warranty for several RECD products. Its 75 kVA/60 kW product page also specifies maintenance at approximately every 2,000 operating hours.
These are product-specific published terms and should not automatically be applied to every RECD model. The purchaser should rely on the warranty documentation for the exact equipment installed.
Understand the Maintenance Schedule
The facility should leave the installation with a clear maintenance plan. For example, Aceget's published 25 kVA/19 kW and 75 kVA/60 kW product information recommends maintenance at approximately every 2,000 operating hours, with inspection of relevant components and generator-related maintenance. The exact interval and service procedure should be confirmed for the installed model.
Maintenance records should include operating hours, inspection dates, observations, parts replaced and technician details.
Train the Operators Before Handover
A post-installation checklist should include basic operator training. The DG operator should understand the controller display, normal operating indications, important alarms and when to contact the maintenance team.
The operator should not be expected to repair technical faults. Instead, the training should make it clear which conditions can be observed during normal operation and which require specialist support. This becomes particularly important when different employees operate the DG on different shifts.
Check Spare Parts and Service Contacts
Before closing the installation project, confirm how technical support will be obtained. The facility should know the appropriate service contact, warranty process and spare-parts channel. Aceget states that its technical team and field technicians provide installation and service support, while its product pages describe on-site service for listed RECD models.
The customer should retain these service details with the DG documentation rather than depending on an individual salesperson's phone number.
Photograph the Completed Installation
Good photographs are useful for future reference. Take clear photographs showing the RECD, product identification, exhaust connections, controller, sensors and general installation arrangement.
These images can help the maintenance team understand the original configuration if a component needs to be replaced several years later. Photographic records can also be useful when coordinating remote technical support.
Create a DG-Wise Handover File
The final handover package should be organized by generator. Include the original DG details, RECD model, product identification, technical datasheet, relevant Type Approval/testing documentation, installation report, commissioning record, warranty, maintenance schedule, service contacts and photographs.
This file becomes the technical history of the retrofit.
For sites operating multiple DGs, such records can prevent confusion between products installed at different times.
What About the RECD system for industrial generators After Installation?
An RECD system for industrial generators needs to be treated as a long-term operating asset after commissioning. Industrial facilities may operate generators under very different load patterns and environmental conditions. The maintenance team should therefore monitor the system according to the manufacturer's instructions and keep appropriate operating records.
The post-installation checklist should become the starting point for ongoing maintenance rather than a document that gets forgotten after the invoice is paid.
Verify That the Manufacturer's Documentation Matches the Equipment
CPCB's procedure places importance on RECD identification and conformity. The facility should therefore confirm that the installed product corresponds to the documentation supplied at the time of purchase.
If the manufacturer, model, identification number or other critical information differs, the installer should provide a written explanation and corrected documentation where necessary. This is one of the simplest ways to protect the technical integrity of the project record.
Don't Treat Installation as Automatic Compliance
A properly completed installation is important, but it should not be described as a blanket guarantee of regulatory compliance. CPCB's procedure establishes the framework for RECD testing and Type Approval. However, the applicable requirements for a particular DG installation may also depend on the engine, location, current regulations and directions from competent authorities.
For 2026, verify the latest official CPCB information and any applicable State/UT, CAQM or other local requirements before making a compliance statement. The facility should also retain evidence of the product and installation rather than relying only on a verbal certification claim.
A Practical Final Handover Review
Before signing the final installation acceptance, the facility should be able to confirm that the correct RECD is installed, the exhaust connections are secure, the controller and sensors are functioning, the applicable commissioning checks have been completed and the maintenance requirements are understood.
The operator should know how to recognize normal system operation and where to obtain technical help. The documentation package should also be complete. Only after these points have been addressed should the installation be considered operationally handed over.
Frequently Asked Questions
What should be checked immediately after RECD installation?
Verify the exact RECD model and identification, inspect exhaust connections, check for leakage, confirm controller and sensor operation, review commissioning information and make sure the equipment is operating according to the manufacturer's instructions.
Should exhaust back pressure be checked after installation?
Where applicable, yes. Exhaust back pressure is specifically included in CPCB's RECD testing framework, so the relevant engine and product requirements should be reviewed as part of commissioning.
How often does an RECD require maintenance?
The interval depends on the product and operating conditions. Aceget's published product pages specify approximately 2,000 operating hours for maintenance on several models, but the manufacturer's instructions for the exact installed model should be followed.
What documents should I receive after installation?
The handover should include the RECD model and identification, technical documentation, relevant Type Approval/testing information, installation and commissioning records, warranty, maintenance instructions and service contacts.
Does successful commissioning mean the DG is automatically fully CPCB compliant?
No. Commissioning confirms the installation and operation against the applicable project/product requirements. Overall regulatory compliance should be assessed against the current requirements applicable to the specific DG and location.
Conclusion
A post-installation checklist turns an RECD installation from a completed physical job into a properly documented and maintainable technical asset. The facility should verify the exact product, inspect the exhaust system, confirm controller and sensor operation, review regeneration functions where applicable, consider exhaust back pressure, record commissioning information and obtain the warranty and maintenance documentation. Aceget currently publishes model-specific RECD information, including warranty, maintenance, regeneration and on-site service details for its products. The most valuable part of the post-installation process is the handover record. Years after the retrofit, the facility should still be able to answer which RECD was installed, on which DG, when it was installed, which documents support the product, how it should be maintained and who is responsible for service.
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