Lochinvar Service, Repair & Maintenance

The Boiler Experts For Over 50 Years

Lochinvar Solutions

At Rasmussen Mechanical Services , we provide expert Lochinvar service, maintenance, and installation . While not an official Lochinvar representative, our skilled technicians handle repairs, maintenance, and system installations.

Common Lochinvar Boiler Issues & Repairs

We quickly diagnose and resolve Lochinvar boiler problems to minimize downtime and maintain peak performance.

Heat Exchanger Scaling & Fouling – Mineral buildup and combustion residue reduce efficiency. We provide thorough cleaning and descaling.

Burner & Combustion Issues – Air-fuel imbalances or ignition failures impact performance. We offer burner calibration, combustion tuning, and part replacement.

Condensate System Failures – Leaks or improper piping cause water damage and pressure issues. We repair condensate traps, pumps, and drainage systems.

Control & Sensor Malfunctions – Faulty sensors and control failures lead to operational disruptions. We diagnose and repair flame safeguard systems, control panels, and sensors.

Pressure & Safety Valve Issues – Clogged piping or failing relief valves cause pressure fluctuations. We provide testing, recalibration, and safety valve replacements.

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Lochinvar Boiler Installation & Commissioning

We ensure that your Lochinvar boiler is installed correctly, tested thoroughly, and optimized for long-term performance.

  • System Design & Load Analysis: Our team evaluates your facility’s specific requirements to select the most suitable Lochinvar boiler model.
  • Mechanical Installation: We handle the installation of boilers, water heaters, and associated systems, adhering to all relevant codes and standards.
  • Controls & Instrumentation: We set up control systems to enhance fuel efficiency and provide precise operational management.
  • Startup & Commissioning: Our process includes comprehensive testing and tuning to confirm system integrity and efficiency.

Key Maintenance Considerations for Lochinvar Boilers

Routine maintenance is crucial for maximizing efficiency and longevity. Essential service tasks include:

  • Heat Exchanger Cleaning – Regular descaling prevents efficiency loss caused by mineral buildup and combustion residue.
  • Burner Inspection – Checking and calibrating burners ensures proper combustion and minimizes downtime.
  • Control System Verification – Testing sensors and SMART SYSTEM™ controls helps maintain safe and efficient operation.
  • Condensate Drain Maintenance – Keeping the condensate drain clear prevents blockages and potential water damage.

Technical Insights on Lochinvar Boilers and Water Heaters

Lochinvar’s CREST® Condensing Boiler series, offers models with inputs ranging from 750,000 to 6 million Btu/hr, achieving up to 96.2% thermal efficiency. These boilers feature a turndown ratio of up to 25:1, allowing precise modulation of the burner to match varying heating demands. The integration of the CON·X·US® Remote Connectivity and SmartTouch™ operating control systems enables real-time monitoring and adjustments.

Lochinvar’s Shield™ Commercial Water Heater has inputs from 125,000 to 500,000 Btu/hr and thermal efficiencies up to 96%. This model supports extended vent runs of up to 150 feet for both exhaust and air intake. The SMART CONTROL™ Operating Control with BACnet and Modbus protocols allows for integration with building management systems.

The KNIGHT® Fire Tube Boiler , achieves a 95% Annual Fuel Utilization Efficiency (AFUE) and offers a turndown ratio of up to 10:1. Equipped with an ECM variable speed boiler pump, it ensures optimal flow rates and energy savings. The SMART SYSTEM™ Operating Control and CON·X·US® Remote Connect capabilities provide users with advanced control and monitoring options

FAQ

What pressure ratings do Lochinvar boilers support?

Lochinvar offers a range of boilers suitable for various pressure requirements. Specific pressure ratings depend on the model and application.

What fuel types are compatible with Lochinvar boilers?

Lochinvar boilers are compatible with natural gas and propane (LP gas). Specific fuel compatibility depends on the model.

What causes heat exchanger failure in Lochinvar boilers?

Common causes include scaling from inadequate water treatment, corrosion due to improper pH levels, and thermal stress from rapid temperature changes.

What Lochinvar models do you service?

We service a full range of Lochinvar boilers and water heaters. Including CREST® Condensing Boilers, KNIGHT® Fire Tube Boilers, Power-Fin®, and SHIELD® Commercial Water Heaters.

What are the most common Lochinvar boiler issues?

Frequent issues include ignition failures, heat exchanger scaling, sensor malfunctions, and condensate system failures. Our team diagnoses and repairs these problems to keep your system running smoothly.

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