The Boiler Control 284 is Designed to Operate up to Four Boilers to Accurately Maintain a Target Water Temperature. The 284 Operates Both Condensing & Non-Condensing Boilers That Are Either Modulating, Single Stage or Two Stage to Provide a Flexible, Cost Effective Mixed Boiler Plant Solution With Better System Performance. The Target Water Temperature is Based On Outdoor Temperature Reset or a Fixed Setpoint For Space or Process Heating Applications. Additional Loads Supplied by The 284 Include Domestic Hot Water & Fixed Setpoint Heating. Boiler Equal Run-Time Rotation, Stand-By Primary Pump Operation & Pump Exercising All Increase Boiler Plant Reliability. The 284 Communicates With a Building Automation System (Bas) Using Bacnet® or Modbus® For Remote Monitoring & Adjustment Capability. Tekmarnet® Thermostats or a TN4 Gateway 485 Can be Added to Optimize System Performance & Provide Remote Monitoring Capability.For Further Information And up to Date Literature Visit: Tekmar Documentation | Tekmar Controls | 284