GL235 is designed for easy and dependable operation. Its microprocessor-based technology ensures reliable and accurate performance. Advanced features include differential temperature control, selectable high limit, programmable re-circulation freeze protection, nocturnal cooling, and optional booster pump control.
Automatically maximizes solar heat collection by actuating a 24V valve when there is solar heat available.
LED indicators show status of system operations.
Automatic switching (selectable) from solar pool heating to nocturnal pool cooling.
Single-setting adjustment for desired pool/spa temperature.
Recirculation freeze protection.
Installer-programmable features for any-system adaptability.
Quick, accurate, easy-to-set desired temperature controls.
Easy to read, understand and operate.
Operation and Maintenance Manual