Goldline Controls offers the GL-235 solar pool heating control. The GL-235 comprises a unique microprocessor-based structure to offer reliable and accurate performance. This model incorporates advanced operating features to offer night time cooling, differential temperature control, easy to program recirculation freeze protection and selectable high limit.
The automatic heating feature of the control enables the valves to rotate and collect heat when the solar collectors are warmer than the pool water by 4ºF and the heat collection action is automatically stopped when the heat of the solar collectors is within 1.5ºF of the pool temperature or when the pool temperature is more than the set temperature. Similarly the automatic pool cooling feature cools down the water temperature when it exceeds the set level.
The single dial adjustment utilized for temperature settings allows easy setting of desired maximum and minimum temperatures for pool or spa. The GL-235 solar pool heating controller has terminal strip connections to manage power inputs, sensor inputs, screw terminal connectors and three pin connectors for forward and reverse valve actuator operations. The LED indicators incorporated in the GL-235 solar pool heating control from Goldline Controls offers details on power to the controls, facts on power out put directing valves and heat collecting pump, power output directing valves and heat or cool dissipating pumps and operational status of the sensors.
The valve output rating of this model is 24 VAC and the output can be lowered to 12 VAC by using a jumper switch and the output is fuse shielded. The system test switch incorporated in the heating control allows manual superseding of automatic functions for emergency verifications.