Standard Unit - Eco Series

eco series temperature control unit manufactured by Delta T Systems

The Eco Series water temperature control system is our most popular TCU. The new pump design is compliant with the DOE Energy Conservation Standards. These pumps produce higher outputs measured in flow and pressure compared to the existing design. In addition, the energy consumption is significantly reduced.

  • ¾ to 3 HP Pump, 25 to 130 GPM
  • 9 to 24KW Low Watt Density Heater
  • 2 tank design
  • Direct or indirect cooling
  • 250°F (121°C) Fluid Operating Temperature
Download Technical Specs

Delta T Systems Eco Series temperature control unit (TCU) utilizes a new pump design that creates 50% to 100% greater flow at the same pressure point on the pump curve, as compared to other current designs. This new pump’s reduced energy consumption allows the Eco Series to be compliant with the Department of Energy’s (DOE) 2020 Conservation Standards that will take mandatory effect as of January 2020.

Eco Series Safety Features:

  • Bi-metal switch that prevents overheating
  • Circuit protection for the motor
  • High temperature pump seal
  • Dry run protection for the heater

Additional Eco Series Design Improvements:

Design improvements and material selections make the Eco Series temperature control units less susceptible to traditional maintenance problems, and easier to maintain.

  • Industrial strength frame and cabinetry
  • Lift-off panels for easy access
  • IEC and UL compliant components

Compact heater design allows higher capacity in a smaller footprint.

Standard Features

  • 9, 12, 18 or 24 KW Heater
  • 250°F (121°C) Fluid Operating Temperature
  • Microprocessor-Based PID Controller
  • Motor Overload Protection
  • Over Temperature Protection
  • Low Water Pressure Protection
  • High Pressure Safety Relief Valve Protection
  • Liquid-Filled Delivery and Return Pressure Gauges
  • Fused Transformer
  • Grounded Circuit Control
  • Pilot Lights indicating Separate Functions of Use
  • Rugged, Heavy Gauge Sheet Metal Cabinet
  • 3″ Industrial-Grade Casters, swivel and lockable
  • Ease of Service Design
  • NEMA 1 Electrical Specifications & Wiring in Conformance with NEC Electrical Codes
  • Automatic Venting
  • Solid State Heating Contactor

Optional Features

  • Operating Temperature up to 300°F (149°C)
  • 50 and 60 Hz
  • 208, 230 and 460V
  • Remote Start/Stop
  • Remote Sensor input
  • Water to Water Heat Exchanger for indirect cooling
  • Stacked Units
  • NFPA 79 electrical safety standards
  • NEMA Classifications: 3, 4, 4X, 7 and 12 rated enclosures
  • Customer-Preferred Controllers
  • Audible or Visual Alarms
  • Larger Solenoid Valves
  • Electrical Main Disconnect
  • Multiple Zones in a Cabinet or Open Frame
Eco Series Temperature Control Unit manufactured by Delta T Systems


  • From Process (A): 1-1/2″ NPT
  • To Process (B): 1-1/2″ NPT
  • Water Supply (C): 3/4″ NPT
  • Drain (D): Match Solenoid Size NPT
ModelHeating Capacity
Pump Size
Minimum Circuit
460V, 230V, 208V
Dimensions (in)
Height, Width, Depth
Shipping Weight

outlet and flow pressure chart for a Delta T Systems temperature control unit pump

Download Technical Specs