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Great Compatibility —
This is a differential temperature control for solar automatic heating or cooling of pools, spas, and hot tubs. Compatible with all new or existing systems with a selectable low voltage and a high voltage output. Brand new upgraded OEM replacement for part# GL-235, GL235, GLD-30-0065, GOLGL-235, 2807-101.
Perfect Design —
Automatically maximizes solar heat collection and automatic switch (selectable) from solar pool heating to cooling. Single dial adjustment for desired pool/spa temperature and selectable high limit control. Precisely calibrated temperature dial from 75°F to 104°F with \"solar off\" position. LED indicators show status of system operations and weatherproof enclosure. Programmable recirculation freeze protection, automatic nocturnal cooling, and optional booster pump control.
Special Features —
Input power: 115 or 240 VAC. The output controls a 24VAC automatic valve actuator. The internal jumper can be moved to select 12VAC output operation for older valve actuators. 115VAC 1HP or 240VAC 2HP high voltage output with SPST-NO isolated contact for controlling a filter pump or a booster pump.
Superior Quality —
Advanced microprocessor-based high-precision PCB manufacturing, soldering and assembly technology, meets or exceeds OEM specifications, professional tests to ensure optimal performance and long-lasting reliability.
Specifications —
Power:
105-13ovAC,-5A 5o/6OHz or 195-25ovAc,.3A 5o/6OHz
Output:
Selectable low voltage 24VAC, 20VA, .85A or 12VAC, 20VA,1.7A
GL-235-LV-HV only: SPST-NO isolated contact 15VAC 1HP 240VAC 2HP
High Limit:
75(24°c) - 104F(40°c) calibrated scale or Solar off
Sensors:
2 required-thermistor,10Kohm 25c/77°F
(snap switches recommended if recirculate freeze protection is used)
Differential: on at 4\'F, off at 1.5°F
Recirculate freeze: On at s40°F(4.5C), off at 242°F(5.5C), Enabled via jumper
Nocturnal cooling:
on when collector 8°F less than pool and pool hotter than limit,off when collector 3°F less than pool or pool cooler than high limit.Enabled via jumper
