Goldline GL-30 Solar Control
The Goldline GL-30 temperature differential controller provides for automatic operation of domestic solar water heating systems. The control output is wired to a pump that circulates the heat transfer fluid between the solar thermal collectors and the storage tank during the course of the day. The GL-30 features two inputs for sensors and one 20A output for the circulating pump. The GL-30 replaces the older CM-30 control.

  • 2 Inputs (Sensors)
  • 1 Output (20A Relay)
  • MFG Warranty
  • Made in USA
  • 8-20°F adjustable turn-on differential
  • 4°F fixed turn-off differential
  • 110-230°F adjustable high limit
  • 120/240 VAC input
  • 20A, 1HP@120VAC, 2HP@240VAC output
  • LCO Model includes Line Cord and Outlet
  • 10K Thermistor Type Sensors (NOT Included)
  • +/- 1°F Accuracy
Goldline GL-30 Solar Control

Goldline GL-30 Solar Control


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Goldline GL-30 with (2) SB Sensors

Goldline GL-30 with (2) SB Sensors


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Goldline Controls
Laing DC Pumps