Linkageless control technology makes boiler rooms more efficient and easier to operate
In order to cut boiler room costs and solve end-user headaches, many boiler professionals are making the move to “linkageless” control systems. A linkageless system uses a burner with individual servos to control fuel and air ratios, and this in turn provides more savings to the end user. Some of the biggest benefits of linkageless systems include:
1) Higher efficiency: O2 levels may fluctuate but will always return to position of highest fuel and electrical efficiency. In addition, turndown is often improved resulting in less cycling of the burner.
2) Monitoring and communication: The system communicates via Modbus and reports on all functions. The main module monitors the positions of all fuel- and air-control devices. Any positioning error shuts the burner down safely.
3) Automatic adjustments for ambient air and fuel changes: Linkage systems can cause major problems for technicians. Once all the linkage is set, the ambient air density may change, throwing the system off. In addition, instead of system readjustment every time there is a fuel switch, the positions of all servos are programmed and independent. This means that the system adjusts automatically to fuel/air ratio changes as well as fuel changes.
The new FlexFit system is an innovation in linkageless technology now being offered by Preferred Utilities Manufacturing Corporation. The FlexFit solution offers a less costly, less time-consuming retrofit to modern linkageless controls in the boiler room. Leveraging the industry-leading BMU (Burner Mate Universal) platform, the FlexFit can be used in new installations or be easily retrofitted into existing jackshaft control panels that use supported common flame safe guards. This solution is half the price of the BMU (with the same benefits), and a trained technical can install the FlexFit in one day.
Fuel savings are accomplished with parallel positioning combustion control with optional oxygen trim. Electricity savings are provided by the ability to control a Variable Speed Drive for the FD Fan. In addition to flame safeguard and combustion control, the FlexFit also includes optional draft control.
The FlexFit communicates to Building Automation Systems by Modbus or optional Ethernet. And because it is microprocessor-based and pre-engineered, the FlexFit is an economical alternative to more expensive PLC-based boiler controllers. The parts are in stock for immediate delivery and require no programming.
This is a control solution that delivers benefits for all members of your team. Owners will see savings through electrical and fuel efficiency, and they’ll have tighter control of boiler room functions. Managers will be able to get ahead of emergencies before they happen, and technicians will enjoy easy installation, in-and-out maintenance, and local support.
With a flexible design that is more affordable, more accessible, and more accurate, FlexFit is the retrofit solution you’ve been waiting for.
About Preferred Utilities Manufacturing Corporation:
Preferred Utilities Manufacturing Corporation is an engineering-based manufacturer of products for commercial, institutional, industrial and nuclear power facilities. Our products include fuel oil handling systems and components, boiler instrumentation and controllers, high quality burners, and nuclear power plant outage reduction tools and component parts. Continuous research and development are applied to our existing products and help us to lead the industry with new and innovative power plant solutions. Our manufacturing, engineering, and administrative headquarters is located in Danbury, Connecticut, and regional sales and service offices are located throughout the United States.