New updates to our draft controllers, including the popular JC-22 model, make it an even more effective solution. Draft controls have long been an important component in boiler systems to help control negative pressure. Even though modern forced draft boilers are usually airtight, they still often need draft controls to help stabilize burners using flue gas recirculation for […]
FlexFit Retrofit – More savings, More efficiency
Made in the U.S.A., Preferred retrofits provide sustainable solutions for reducing energy costs with upgraded efficiencies. At this site in Queens, NY, one of our skilled field service engineers replaced an obsolete Honeywell RM7800 L flame safeguard/ ControLinks fuel-air combination with our FlexFit Linkageless Controller. The FlexFit controller brings linkageless control to your burner with an integrated flame safeguard […]
Modbus RTU verses Modbus TCP/IP: What’s the Difference?
-Robert Frohock, Danbury, CT See also: “I know what Modbus is, but what is BACnet?” Modbus Protocol is a messaging structure developed by Modicon. It is used to establish master-slave/client-server communication between devices. Modbus has a lot of protocol options. But the two used most are Modbus RTU (Remote Terminal Unit), serial (RS-232 or RS-485) protocol or Modbus […]
A Groundbreaking Enhancement of Dual Float Level Sensors
Preferred Announces the TG-EL-MS, a Groundbreaking Enhancement of Dual Float Level Sensors Preferred now offers a unique new improvement to our Dual Float Level Sensor. It’s now the only one on the market that can measure water as low as 1.2” off the bottom of the tank, with floats that will fit in a 2-inch diameter tank opening […]
Modbus Comms: How to Set Floating Point Values
In industrial settings, Modbus is one of the oldest protocols for devices to communicate their data digitally to a central controller. It allows transmitters to send integer data to controllers, and controllers to send integer data to SCADAs used in large, fully-monitored mission critical facilities such as data centers. Here we will give a pithy explanation of successfully […]
Boiler System 101: The Advantages of Full System Integration
Danbury, CT – A boiler system functions as a critical component to the continuous operation of a facility. It is important to maintain safe, reliable, and efficient operation while minimizing any downtime of the boiler system to prevent disruption of operation and significant loss. A boiler system consists of many sub-systems working in harmony – the boiler, the burner and its controls, boiler […]
Meeting Customer needs with Complete Packages
Made in the U.S.A., This project was fast tracked so all burners got their own set of wheels! Preferred was happy to work closely with one of our discriminating, long time State Agency customers to package these excellent Preferred combustion and controls with Johnston boilers – together for an ultra high efficiency and low emissions boiler plant. The […]
“I know what Modbus is, but what is BACnet?”
-Rob Frohock See also: Modbus RTU verses Modbus TCP/IP: What’s the Difference? In industrial settings, Modbus is one of the oldest protocols for devices to communicate their data digitally to a central controller. It allows transmitters to send integer data to controllers…it allows controllers to send integer data to SCADAs…and it is very easy to use. BACnet is […]
NYC College Implements a Boiler Retrofit on a Budget
See the article published here. The boiler system at Columbia Teachers’ College in New York City had been in need of an upgrade for a while, but the cost of new boilers created a challenge confronted by many facilities with tight budgets and aging boiler rooms. Faced with a system that had numerous problems, administrators had to find […]
How NYC’s Department of Education Gained Control of Its Faulty Boiler Fans
Could an innovative control make outdated equipment work like its modern counterparts? Read the article in Today’s Boiler here. New York City regulates the size and efficiency of draft fans in most large physical plants and municipal properties, but the NYC Department of Education was struggling to meet those guidelines. The department utilized old, outdated boilers that were […]