Engineered Systems Magazine

Boiler controls: Synex Controls

March 12, 2012

Synex-03-12-2012-body.jpgSynex Controls has launched its latest product innovation in boiler room control system monitoring.

The inSite for ModSync™ tool provides a private portal for remote web-based access to a facility’s boiler room controls. Used in conjunction with the Synex ModSync sequencing system, the inSite for ModSync™ interface provides real-time boiler system status using any traditional web browser, including a web-enabled cell phone.

“Remote access to the boiler system is a huge asset in terms of system cost savings and efficiencies,” said Synex Controls Business Manager Joel Southwell. “The impact is so significant, the tool has the capability to pay for itself in the first months of use.”

Users of inSite for ModSync™ may access real-time system status, make adjustments, monitor maintenance schedules, receive email and text-message alerts, and review systems reports -- all via an user-friendly, full-color icon-based interface.  The inSite for ModSync™ is directly supported by remote technical assistance, requires no software installation or licensing fees, and can be configured to allow multiple administrators. In addition, there are step-by-step instructions for first time users. It’s all backed by engineers with decades of experience, who are reviewing system statistics. If the boiler system is not running at optimal levels, an email is sent not just to the facility’s administrators, but also to the Synex Controls system engineers for review and action.

InSite for ModSync™’s cutting-edge technology helps users optimize boiler efficiency for hydronic, steam boiler, and thermal fluid heater installations. Without a properly designed sequencing system in place, multiple-boiler systems do not have the capability to minimize cycling and maintain even operational usage across the equipment — which ultimately reduces equipment life, Southwell said. By designing the control logic to minimize the number of times a specific unit cycles, the wear on the boiler system is minimized and the equipment life cycle is greatly extended.

In addition, the system responds to outdoor temperature readings and adjusts the loop setpoint accordingly. Hydronic systems, for example, are configured to maintain building temperatures at design temperature, ensuring there is enough heat on the coldest days. But if the outdoor temperature is warmer than the design temperature, the boiler plant has too much capacity. If a control system is in place, lower hydronic loops will be used to reach higher system efficiencies — which in turn means significant energy savings.

ModSync and inSite for ModSync™ applications are fully retrofittable and customizable. Features also include:

  • Setback scheduling: The loop setpoint can be configured to change based on occupancy of the building.  This allows for automatic switchover to lower operating temperatures during off hours such as nights, weekends and holidays.
  • System interface flexibility:The equipment can be custom programmed to match the most demanding system design requirements, eliminating “canned logic” limitations.
  • Multiple setpoint modes
  • Trending: Key variables such as supply temperature, return temperature, outdoor temperature and setpoint can be trended to show system response and performance data.
  • Alarm status and history: Alarm status is easily communicated with a text description of the current alarm. No alarm code deciphering or cross-referencing is required. The Alarm History features provide a date and time stamp of any recent alarm conditions.
  • Building integration:The equipment can be configured to communicate with energy/BMS using Modbus, BACnet, LonWorks, or N2 protocols.
  • Alerts:Text message and email alerts provide valuable notification that an alarm condition has been sensed.