Description
The GL-235 Aqua Solar Pool Control is a differential temperature controller for solar heating systems used with pools, spas, and hot tubs. It monitors solar and pool temperatures to switch solar circulation or valves when heat is available and includes an adjustable calibrated water temperature high limit. Installer-selectable functions include nocturnal cooling, recirculation freeze protection, and optional booster pump control for system integration.
Quick Answer: What Is the Hayward GL-235?
The Hayward GL-235 is a automation control panel / remote: Hayward AquaSolar Solar Control w/ Low Voltage Output. It is brand new, ships in 1-2 business days, and is backed by the Hayward manufacturer warranty.
Hayward GL-235 Specifications
| Brand | Hayward |
|---|---|
| Equipment Type | Automation Control Panel / Remote |
| Model Number | GL-235 |
| Equipment Capacity | 1 |
| Number of Relays | 2 |
| For Use With | AquaLink® RS Control Systems |
| Product Line | AquaSolar |
Key Features
- Differential temperature control for solar pool heating
- Adjustable calibrated high limit for water temperature
- Selectable nocturnal cooling to prevent overheating
- Programmable recirculation freeze protection
- Optional booster pump control for supplemental circulation
- LED indicators that show system status and operation
- Compatible with 115 or 240 VAC input power
How It Works
Pool automation and control equipment ties the pump, heater, lights, sanitizer and valves together so they run on schedule and can be controlled from a panel, remote or smartphone app. Load centers house the breakers and relays, relays switch equipment on and off, timers schedule run times, temperature controllers manage heat, and water levelers keep water at the right height.
How to Choose the Right Automation Control Panel / Remote
- Match replacement panels, relays and boards to the automation system brand and model.
- Count the circuits and auxiliaries you need now and in the future.
- Confirm compatibility with variable speed pumps, salt systems and lighting.
- For timers and relays, match voltage, amperage and pole configuration.
If you are replacing an existing part, the fastest way to confirm compatibility is to match the brand and model number on the old equipment. Send us the model number or a photo of the label and our team will help confirm the GL-235 is the right fit before you order.
Installation and Safety
Automation equipment involves line-voltage wiring, breakers and bonding. Installation should be performed by a licensed electrician or qualified pool professional in accordance with NEC Article 680 and the manufacturer's instructions. Turn off power at the breaker before servicing.
Maintenance Tips
- Keep firmware updated where supported.
- Inspect relays and wiring for heat damage.
- Check the panel door seals and keep the enclosure free of insects.
- Test GFCI breakers monthly.
What's Included
This listing is for the Hayward GL-235 as described in the specifications above. Plumbing, wiring, unions and accessories are not included unless they are listed in the product name or specifications.
Built for Homeowners, Pool Pros and Property Managers
- Homeowners: match your existing model number, then reach out if you want a second set of eyes on compatibility before you order.
- Pool service pros and builders: order quickly, track every shipment, and reorder common parts for your routes and builds.
- Property managers and commercial pools: standardize equipment across properties and plan replacements with help from our team.
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Frequently Asked Questions About the Hayward GL-235
Can I add automation to an existing pool?
Yes, most systems are designed for retrofit; count your equipment and choose a system with enough relays.
Will this work with my pump and heater?
Check the compatibility list on the specifications or contact our team with your equipment models.
Do I need an electrician?
Yes, line-voltage automation wiring and bonding should be done by a licensed electrician.
Is this the genuine Hayward part?
Yes. It is brand new Hayward equipment (model GL-235) covered by the manufacturer warranty. Warranty terms vary by product and application; see the manufacturer documentation or ask our team.
